A glue nozzle and glue dispensing device

Abstract

The utility model discloses a glue outlet and glue outlet device belong to glue outlet device technical field. The glue outlet includes: glue outlet body, has the first direction and second direction of intersection, the glue outlet body is along the first direction and is set up with the glue channel, the glue outlet body is along the second direction and is set up with the opening, the opening with glue channel intercommunication, first baffle, first baffle sliding connection in glue outlet body, second baffle, second baffle swing joint in glue outlet body, the glue outlet has glue state and closed state, in glue state, first baffle slides to the opening place to close the opening, in closed state, first baffle slides to the opening place to avoid the opening, and second baffle is inserted in glue channel in the opening to block glue channel.

Description

Technical Field

[0001] This utility model relates to the technical field of glue dispensing devices, specifically to a glue dispensing nozzle and a glue dispensing device. Background Technology

[0002] In the field of mechanical assembly, bolted connections are a common fastening method, but bolts are prone to loosening and failure under long-term vibration loads. Therefore, to improve the reliability of threaded connections, adhesive is usually applied to the threaded surface of the bolt before tightening the nut.

[0003] In related technologies, a glue cartridge containing thread-locking adhesive is assembled onto a glue dispensing device to apply adhesive to the surface of bolt threads. Existing glue dispensing devices mainly consist of a cartridge body, a propulsion mechanism, and a dispensing nozzle. The cartridge body is fitted with the glue cartridge, and the dispensing nozzle is connected to the outlet end of the cartridge. During operation, pressing the propulsion mechanism causes the adhesive to flow under pressure and be discharged from the dispensing nozzle. When pressing the propulsion mechanism stops, the glue dispensing should cease simultaneously.

[0004] However, in practical applications, due to the viscoelastic properties of the colloid and the residual pressure inside the cartridge, the colloid often continues to flow out of the nozzle due to inertia after the pressing and pushing mechanism is stopped, resulting in excessive dispensing. Utility Model Content

[0005] This utility model discloses a glue nozzle and a glue dispensing device to solve the problem in the prior art that after the pressing and pushing mechanism is stopped, the glue still flows out of the glue nozzle due to inertia, resulting in excessive glue dispensing.

[0006] To solve the above-mentioned technical problems, this utility model is implemented as follows:

[0007] In a first aspect, this utility model discloses a glue dispensing nozzle, comprising: a glue dispensing nozzle body having intersecting first and second directions; a glue dispensing channel formed along the first direction within the glue dispensing nozzle body; an opening formed along the second direction within the glue dispensing nozzle body; the opening communicating with the glue dispensing channel; a first baffle slidably connected to the glue dispensing nozzle body; and a second baffle movably connected to the glue dispensing nozzle body. The glue dispensing nozzle has a glue dispensing state and a closed state. In the glue dispensing state, the first baffle slides to the opening to close the opening; in the closed state, the first baffle slides away from the opening to avoid the opening, and the second baffle is inserted into the glue dispensing channel from the opening to block the glue dispensing channel.

[0008] Optionally, the glue dispensing channel extends through the glue dispensing nozzle body along the first direction, and the glue dispensing channel is a through hole of equal diameter.

[0009] Optionally, the dispensing nozzle body further has a third direction, which intersects with the first direction and the second direction; a first guide groove and a second guide groove are provided on the side wall of the dispensing nozzle body, the first guide groove and the second guide groove extend along the first direction and are arranged opposite to each other along the third direction, the first guide groove, the second guide groove and the opening are located on the same side of the dispensing nozzle body, and the first baffle is slidably connected to the first guide groove and the second guide groove.

[0010] Optionally, a first sealing element is provided on the side of the first baffle near the dispensing nozzle body, and the first sealing element protrudes from the first baffle along the second direction; in the dispensing state, the first sealing element is embedded in the opening to seal the gap between the opening and the first baffle.

[0011] Optionally, the second baffle has first protrusions on both sides away from the end of the dispensing nozzle body, and the first protrusions protrude from the second baffle along the third direction; in the closed state, the second baffle is inserted into the dispensing channel from the opening along the second direction, and the first protrusions abut against the sidewall edges of the first guide groove and the second guide groove; and / or, the dispensing nozzle body further includes a second protrusion, the second protrusion is disposed on the sidewall of the dispensing nozzle body, and the second protrusion protrudes from the dispensing nozzle body along the third direction; in the dispensing state, the first baffle is supported on the second protrusion through the first protrusion.

[0012] Optionally, the first seal is an elastic element, the size of which matches the size of the opening.

[0013] Optionally, the side wall of the dispensing nozzle body is provided with a first through hole, which communicates with the dispensing channel and is disposed opposite to the opening along the second direction; the dispensing nozzle also includes a second sealing member, which is movably inserted into the first through hole; in the dispensing state, the second sealing member is inserted into the first through hole to close the first through hole, and in the closed state, the second sealing member avoids the first through hole.

[0014] Optionally, a column is provided on the side of the first baffle away from the dispensing nozzle body, and in the closed state, the second sealing member is housed on the column.

[0015] Secondly, this utility model provides a glue dispensing device, including the aforementioned glue dispensing nozzle and glue dispensing device body, wherein the glue dispensing nozzle is movably connected to the glue dispensing device body.

[0016] Optionally, the glue dispensing device body further includes: a cylinder; a glue tube, which is detachably disposed in the cylinder, with one end of the glue tube connected to the glue dispensing nozzle; and a pushing mechanism, which is disposed at the other end of the glue tube, and is at least partially disposed inside the glue tube and slidably connected to the inner wall of the glue tube, so as to push the glue in the glue tube into the glue dispensing nozzle.

[0017] This utility model discloses a glue dispensing nozzle, comprising: a glue dispensing nozzle body having intersecting first and second directions; a glue dispensing channel formed along the first direction within the glue dispensing nozzle body; an opening formed along the second direction within the glue dispensing nozzle body; the opening communicating with the glue dispensing channel; a first baffle slidably connected to the glue dispensing nozzle body; and a second baffle movably connected to the glue dispensing nozzle body. The glue dispensing nozzle has a glue dispensing state and a closed state. In the glue dispensing state, the first baffle slides to the opening to close it. In the closed state, the first baffle slides away from the opening to avoid it, and the second baffle is inserted into the glue dispensing channel from the opening to block the glue dispensing channel. In this invention, when the dispensing nozzle is in the dispensing state, the first baffle is slidably connected to the side wall of the dispensing nozzle body, which can close the opening during dispensing to ensure that the adhesive flows directionally along the dispensing channel; when the dispensing nozzle is in the closed state, the first baffle slides away from the opening, and the second baffle is inserted into the dispensing channel from the opening, thereby blocking the dispensing channel in the closed state and preventing the adhesive from leaking out of the dispensing channel due to inertia, thus achieving the purpose of controlling the amount of adhesive dispensed. Attached Figure Description

[0018] Figure 1 This diagram illustrates the structure of the dispensing nozzle described in the embodiments of this utility model. Figure 1 ;

[0019] Figure 2 This diagram illustrates the structure of the dispensing nozzle described in the embodiments of this utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the first baffle in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the second baffle in an embodiment of the present invention;

[0022] Figure 5 This diagram illustrates the structure of the dispensing nozzle described in the embodiments of this utility model. Figure 3 ;

[0023] Figure 6 This is a schematic diagram showing the structure of the glue dispensing device described in this utility model;

[0024] Figure 7 In the embodiments of this utility model, along Figure 6 Cross-sectional view of line AA in the middle.

[0025] Figure label:

[0026] 1. Nozzle body; 11. Dispensing channel; 12. Opening; 13. First baffle; 131. First seal; 14. Second baffle; 141. First protrusion; 15. First guide groove; 16. Second guide groove; 17. Second protrusion; 18. Second seal; 19. Column;

[0027] 2. Cylinder body;

[0028] 3. Glue cartridge;

[0029] 4. Pushing mechanism; 41. Push rod; 42. Pushing assembly; 421. Bracket; 422. Pushing component; 4221. First pushing component; 4222. Second pushing component; 423. First elastic component; 424. Limiting component; 425. Third baffle; 426. Second elastic component;

[0030] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0031] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the fixed scope of the present utility model.

[0032] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0033] See Figure 1 The diagram shows the structure of the dispensing nozzle described in the embodiment of this utility model. Figure 1 .

[0034] like Figure 1As shown, this utility model discloses a glue dispensing nozzle, including: a glue dispensing nozzle body 1, a first baffle 13, and a second baffle 14. The glue dispensing nozzle body 1 has intersecting first direction X and second direction Y. A glue dispensing channel 11 is formed inside the glue dispensing nozzle body 1 along the first direction X, and an opening 12 is formed in the glue dispensing nozzle body 1 along the second direction Y, the opening 12 communicating with the glue dispensing channel 11. The first baffle 13 is slidably connected to the glue dispensing nozzle body 1, and the second baffle 14 is movably connected to the glue dispensing nozzle body 1. The glue dispensing nozzle has a glue dispensing state and a closed state. In the glue dispensing state, the first baffle 13 slides to the opening 12 to close the opening 12; in the closed state, the first baffle 13 slides away from the opening 12 to avoid the opening 12, and the second baffle 14 is inserted into the glue dispensing channel 11 from the opening 12 to block the glue dispensing channel 11.

[0035] In this embodiment, the dispensing nozzle includes a dispensing nozzle body 1, a first baffle 13, and a second baffle 14. The first baffle 13 is used to close the opening 12 in the dispensing state to maintain the sealing of the side wall of the dispensing channel 11. The second baffle 14 is used to insert into the dispensing channel 11 from the opening 12 in the closed state to block the flow path of the adhesive and prevent the adhesive from continuing to flow out of the dispensing channel 11 due to inertia, thereby achieving the purpose of controlling the amount of adhesive dispensed.

[0036] In practical applications, when the dispensing nozzle is in the dispensing state, the first baffle 13 is slid to the opening 12 to cover and seal the opening 12. Under external pressure, the adhesive flows out from the dispensing channel 11. The sealing effect of the first baffle 13 can prevent the adhesive from seeping out from the opening 12, ensuring the sealing of the side wall of the dispensing channel 11. When the dispensing nozzle is in the closed state, the first baffle 13 is first slid away from the opening 12 to release the seal on the opening 12, providing space for the insertion of the second baffle 14. Then, the second baffle 14 is inserted into the dispensing channel 11 from the opening 12 to block the dispensing channel 11, thereby preventing the adhesive from flowing out from the dispensing channel 11. This can solve the problem of excessive dispensing caused by the adhesive continuing to flow out from the dispensing channel 11 due to inertia in the closed state.

[0037] In some embodiments, the glue dispensing channel 11 extends through the glue dispensing nozzle body 1 along the first direction X, and the glue dispensing channel 11 is a through hole of equal diameter.

[0038] In this embodiment, the dispensing channel 11 is configured as a uniform diameter through-hole, ensuring a consistent cross-sectional area throughout the entire dispensing channel 11. This avoids flow disturbances caused by changes in the path cross-section, resulting in smoother dispensing. Furthermore, because the uniform diameter through-hole has a simple and consistent shape, conventional drilling or wire cutting methods can be used, reducing production costs. Simultaneously, the uniform diameter structure facilitates cleaning and maintenance, reducing adhesive residue.

[0039] It should be explained that equal-diameter through-holes can be achieved using various cross-sectional shapes, including but not limited to circular, rectangular, square, or triangular shapes. These equal-diameter through-holes with different cross-sectional shapes can achieve the effect of stable flow and reduced pressure fluctuations. Those skilled in the art can select appropriate cross-sectional shapes and dimensions according to actual application requirements.

[0040] Reference Figure 2 The diagram shows the structure of the dispensing nozzle described in the embodiment of this utility model. Figure 2 .

[0041] like Figure 2 As shown, the dispensing nozzle body 1 also has a third direction Z, which intersects with the first direction X and the second direction Y. A first guide groove 15 and a second guide groove 16 are provided on the side wall of the dispensing nozzle body 1. The first guide groove 15 and the second guide groove 16 extend along the first direction X and are arranged opposite to each other along the third direction Z. The first guide groove 15, the second guide groove 16 and the opening 12 are located on the same side of the dispensing nozzle body 1. The first baffle 13 is slidably connected to the first guide groove 15 and the second guide groove 16.

[0042] In this embodiment, the first guide groove 15 and the second guide groove 16 form parallel sliding tracks on the side wall of the dispensing nozzle body 1. The two ends of the first baffle 13 are respectively embedded in these two guide grooves to slide smoothly along the first direction X. Furthermore, the first baffle 13, the first guide groove 15, the second guide groove 16, and the opening 12 are all arranged on the same side of the dispensing nozzle body 1, so that the first baffle 13 can close or avoid the opening 12 when sliding, realizing the switching between dispensing and closed states. When the first baffle 13 slides to the position of the opening 12, the dispensing nozzle is in the dispensing state; when the first baffle 13 slides away from the opening 12, the dispensing nozzle switches to the closed state.

[0043] In practical applications, to improve the level of automation, a drive mechanism can be added at the junction of the two guide slots and the first baffle 13. For example, a small linear motor or pneumatic push rod can be used to directly drive the first baffle 13 to slide automatically, thereby improving work efficiency.

[0044] Reference Figure 3 The diagram shows a schematic diagram of the structure of the first baffle 13 in an embodiment of the present invention.

[0045] like Figure 3 As shown, a first sealing element 131 is provided on the side of the first baffle 13 near the dispensing nozzle body 1. The first sealing element 131 protrudes from the first baffle 13 along the second direction Y. In the dispensing state, the first sealing element 131 is embedded in the opening 12 to seal the gap between the opening 12 and the first baffle 13.

[0046] It needs to be explained that when the nozzle is dispensing glue, the pressure distribution inside the nozzle body 1 must be uniform. If the pressure distribution inside the nozzle body 1 is uneven, it will disrupt the laminar flow of the glue and create turbulence. This will result in uneven glue thickness, rough edges, and other shape defects in the glue stream flowing out of the glue channel 11. Furthermore, if the pressure fluctuation inside the nozzle body 1 is too large, it will cause the glue output to fluctuate, resulting in sudden excessive glue spraying or unexpected glue interruption. The root cause of uneven pressure distribution inside the nozzle body 1 lies in insufficient sealing of the sidewalls of the glue channel 11.

[0047] Therefore, in this embodiment, in order to improve the sealing performance of the sidewall of the dispensing channel 11, a first sealing element 131 is provided on the side of the first baffle 13 near the dispensing nozzle body 1. When the dispensing nozzle is in the dispensing state, as the first baffle 13 slides, the first sealing element 131 is driven to slide and be embedded inside the opening 12 to close the gap between the opening 12 and the first baffle 13, thereby sealing the sidewall of the dispensing channel 11 and ensuring that the adhesive can maintain a uniform laminar flow under constant pressure, thus obtaining a consistent dispensing line and a stable dispensing volume.

[0048] Reference Figure 4 The diagram shows a schematic diagram of the structure of the second baffle in an embodiment of the present invention.

[0049] like Figure 4 As shown, the second baffle 14 has first protrusions 141 on both sides away from the end of the dispensing nozzle body 1. The first protrusions 141 protrude from the second baffle 14 along the third direction Z. In the closed state, the second baffle 14 is inserted into the dispensing channel 11 from the opening 12 along the second direction Y, and the first protrusions 141 abut against the sidewall edges of the first guide groove 15 and the second guide groove 16. And / or, the dispensing nozzle body 1 also includes a second protrusion 17, which is disposed on the sidewall of the dispensing nozzle body 1 and protrudes from the dispensing nozzle body 1 along the third direction Z. In the dispensing state, the first baffle 13 is mounted on the second protrusion 17 through the first protrusions 141.

[0050] In this embodiment, the first protrusion 141 is disposed on both sides of the end of the second baffle 14. When the second baffle 14 is inserted into the glue dispensing channel 11 from the opening 12 along the second direction Y, the first protrusion 141 gradually approaches and abuts the side wall edge of the first guide groove 15 and the second guide groove 16, so as to confirm that the second baffle 14 has been fully inserted by the first protrusion 141 abutting the side wall edge of the guide groove. At this time, the glue dispensing channel 11 is blocked.

[0051] In other embodiments, a second protrusion 17 is provided on the side wall of the dispensing nozzle body 1, and the second protrusion 17 and the first baffle 13 are located on different sides of the dispensing nozzle body 1. The second protrusion 17 protrudes from the dispensing nozzle body 1 along a third direction Z. There are at least two second protrusions 17, and the distance between the two second protrusions 17 is the same as the length of the second baffle 14 along the third direction Z. When the dispensing nozzle is in the dispensing state, the second baffle 14 is supported on the second protrusion 17 by the first protrusion 141 thereon. The second protrusion 17 provides a support platform for the second baffle 14, and serves to house the second baffle 14.

[0052] In some embodiments, the first seal 131 is an elastomer, the size of which matches the size of the opening 12.

[0053] In this embodiment, in order to ensure the sealing of the sidewall of the dispensing channel 11 without affecting the sliding function of the first baffle 13 along the first guide groove 15 and the second guide groove 16, the first sealing member 131 is set as an elastic body.

[0054] When the dispensing nozzle is in the dispensing state, the first baffle 13 begins to slide, and the elastic body protrudes from the side of the first baffle 13 and is located between the side of the first baffle 13 and the dispensing nozzle body 1. This causes the elastic body to undergo compression deformation due to pressure. When the elastic body reaches the position of the opening 12, due to the reduction or disappearance of pressure, the elastic body returns to its original shape by its own elastic memory and is embedded in the opening 12, thereby sealing the opening 12 and ensuring the sealing of the side wall of the dispensing channel 11.

[0055] It should be noted that, in terms of material selection, this embodiment preferably uses silicone rubber or polyurethane as the material for making the elastomer. At the same time, it is also necessary to ensure that the Shore hardness of the elastomer is controlled between 50A and 60A, so as to ensure sufficient sealing performance while avoiding sealing failure caused by excessive sliding resistance due to excessive hardness or excessive softness of the material.

[0056] Reference Figure 5 The diagram shows the structure of the dispensing nozzle described in the embodiment of this utility model. Figure 3 .

[0057] like Figure 5 As shown, the side wall of the dispensing nozzle body 1 is provided with a first through hole, which is connected to the dispensing channel 11 and is arranged opposite to the opening 12 along the second direction Y; the dispensing nozzle also includes a second sealing member 18, which is movably inserted into the first through hole; in the dispensing state, the second sealing member 18 is inserted into the first through hole to close the first through hole, and in the closed state, the second sealing member 18 avoids the first through hole.

[0058] In practical applications, when the dispensing nozzle is in the closed state and the second baffle 14 is initially inserted, the front end of the second baffle 14 passes through the opening 12 and gradually enters the dispensing channel 11. Since the dispensing channel 11 is filled with adhesive, a sealed high-pressure zone is formed in the forward direction of the second baffle 14. If force is continued to be applied to press the second baffle 14, the adhesive will spray out through the dispensing channel 11, contaminating the equipment. Therefore, in this embodiment, a first through hole is opened on the side wall of the dispensing nozzle body 1. The first through hole communicates with the dispensing channel 11 and is located on a different side of the dispensing nozzle body 1 from the opening 12. During the insertion of the second baffle 14 from the opening 12, the front end of the second baffle 14 contacts and squeezes the adhesive along the second direction Y. The squeezed adhesive is discharged outward through the first through hole, preventing the adhesive from spraying out of the dispensing channel 11.

[0059] It should be noted that when the dispensing nozzle is in the dispensing state, leakage of adhesive from the first through hole must be prevented. Therefore, this embodiment also includes a second sealing element 18 that can be detachably inserted into the first through hole. When the dispensing nozzle is in the dispensing state, the second sealing element 18 is inserted into the first through hole to seal it. The second sealing element 18 can be a rubber stopper or a silicone stopper, and its size must match the size of the first through hole.

[0060] In some embodiments, a column 19 is provided on the side of the first baffle 13 away from the dispensing nozzle body 1, and in the closed state, the second sealing member 18 is housed on the column 19.

[0061] In this embodiment, the column 19 provided on the side of the first baffle 13 away from the dispensing nozzle body 1 provides storage space for the second sealing element 18, avoiding the problem that the second sealing element 18 is easily lost when stored alone, and also preventing the second sealing element 18 from being completely exposed to the environment and easily contaminated.

[0062] It should be explained that a chamber for accommodating the second sealing element 18 is provided inside the column 19, and the opening of the chamber is flared to allow for quick alignment and insertion / removal of the second sealing element 18. Simultaneously, a vent hole communicating with the chamber is provided on the side wall of the column 19 to eliminate air resistance generated when the second sealing element 18 is inserted into the column 19.

[0063] Reference Figure 6 The diagram shows a schematic of the adhesive dispensing device described in this utility model.

[0064] like Figure 6 As shown, the glue dispensing device in this embodiment includes the above-mentioned glue dispensing nozzle and glue dispensing device body, with the glue dispensing nozzle being movably connected to the glue dispensing device body.

[0065] In this embodiment, the connection between the dispensing nozzle and the dispensing device body is secured by mechanical snap-fit ​​or threads, ensuring a firm connection and good sealing. When it is necessary to replace the dispensing nozzle with a different specification or perform cleaning and maintenance, the dispensing nozzle can be easily removed from the dispensing device. This detachable design avoids the cost waste of replacing the entire device and allows for the selection of appropriate dispensing nozzle models according to different process requirements.

[0066] Reference Figure 7 This illustrates the embodiment of the present invention along... Figure 6 Cross-sectional view of line AA in the middle.

[0067] like Figure 7 As shown, the glue dispensing device also includes a cylinder 2, a glue tube 3, and a pushing mechanism 4. The glue tube 3 is detachably disposed inside the cylinder 2. One end of the glue tube 3 is connected to the glue dispensing nozzle. The pushing mechanism 4 is disposed at the other end of the glue tube 3. The pushing mechanism 4 is at least partially disposed inside the glue tube 3 and is slidably connected to the inner wall of the glue tube 3 to push the glue in the glue tube 3 into the glue dispensing nozzle.

[0068] The dispensing device body of this embodiment includes a cylinder 2, a glue tube 3, and a pushing mechanism 4. The glue tube 3 is filled with glue and is detachably installed in the cylinder 2. The dispensing nozzle is connected to the glue tube 3, and the dispensing channel 11 of the dispensing nozzle is connected to the dispensing port of the glue tube 3. The pushing mechanism 4 is located on one side of the cylinder 2 and is at least partially located inside the glue tube 3. The pushing mechanism 4 pushes the glue towards the dispensing nozzle under the action of external force.

[0069] In some embodiments, such as Figure 7 As shown, the pushing mechanism 4 includes a push rod 41 and a pushing assembly 42. The pushing assembly 42 is disposed on one side of the cylinder 2. A rubber tube 3 is installed inside the cylinder 2. The push rod 41 extends into the cylinder 2 from the pushing assembly 42 along the first direction X, and the pushing assembly 42 is throttle connected to the push rod 41.

[0070] When the dispensing nozzle is in the dispensing state, an external force is applied to the pushing component 42, which drives the push rod 41 to move closer to the dispensing nozzle, so as to push the adhesive to flow out of the dispensing nozzle.

[0071] In some embodiments, such as Figure 7As shown, the pushing assembly 42 includes: a bracket 421, a pusher 422, and a first elastic member 423. One end of the bracket 421 is connected to the end of the cylinder 2 opposite to the dispensing nozzle, and the other end extends along the first direction X towards the side opposite to the dispensing nozzle. One end of the push rod 41 is sequentially inserted into the bracket 421 and the cylinder 3 along the first direction X, while the other end protrudes from the bracket 421. The pusher 422 is hinged to the side wall of the bracket 421 opposite to the end of the cylinder 2 and partially extends into the bracket 421. The first elastic member 423 is sleeved on the push rod 41, and part of the first elastic member 423 is fixedly connected to the push rod 41. One end of the first elastic member 423 abuts against the end of the bracket 421 near the cylinder 2, and the other end abuts against the portion of the pusher 422 that extends into the bracket 421.

[0072] In this embodiment, the pushing component 42 includes a bracket 421, a pushing member 422, and a first elastic member 423. The bracket 421 is fixed to the end of the cylinder 2, providing support for the entire pushing mechanism 4. The push rod 41 passes through the bracket 421 and extends into the inside of the rubber cylinder 3, forming a sliding fit with the inner wall of the rubber cylinder 3 to avoid the problem of push rod 41 deviating during the pushing process.

[0073] In practical applications, when the dispensing nozzle is in the dispensing state, an external force is applied to the pusher 422. The pusher 422 moves and compresses the first elastic element 423 sleeved on the push rod 41. The first elastic element 423 generates elastic force due to compression, driving the push rod 41 to move closer to the dispensing nozzle. In turn, the push rod 41 pushes the glue in the glue cylinder 3 to flow, causing the glue to flow out from the dispensing channel 11 of the dispensing nozzle. When the dispensing nozzle is in the closed state, the external force applied to the pusher 422 is stopped, and the rebound force of the first elastic element 423 causes the push rod 41 to automatically reset and stop dispensing.

[0074] In some embodiments, such as Figure 7 As shown, the propulsion member 422 includes a first propulsion member 4221 and a second propulsion member 4222. The first propulsion member 4221 is sleeved on the push rod 41 and is located between the first elastic member 423 and the end of the support 421 away from the cylinder 2. The second propulsion member 4222 is hinged to the side wall of the end of the support 421 away from the cylinder 2, and the end of the second propulsion member 4222 extends into the space between the first propulsion member 4221 and the end of the support 421 away from the cylinder 2.

[0075] In this embodiment, the first pusher 4221 is sleeved on the push rod 41 and located between the first elastic member 423 and the end of the bracket 421. The first elastic member 423 is selected from at least one of a helical spring, a butterfly spring, and a rubber elastomer. The second pusher 4222 is hinged to the side wall of the bracket 421, with its end extending into the gap between the first pusher 4221 and the end of the bracket 421. In practical application, when an external force is applied to the second pusher, the second pusher 4222 rotates around the hinge point, and its end abuts against and pushes the first pusher 4221 to move. The first pusher 4221 then transmits the force to the first elastic member 423. The first elastic member 423 generates elastic force due to compression, which drives the push rod 41 to move closer to the dispensing nozzle, thereby pushing the glue in the glue cylinder 3 to flow, so that the glue flows out from the dispensing nozzle. When the external force applied to the second pusher 4222 is stopped, the rebound force of the first elastic member 423 causes the push rod 41 to automatically reset to stop dispensing glue.

[0076] In this embodiment, as Figure 7 As shown, the pushing assembly 42 further includes: a limiting member 424, a third baffle 425, and a second elastic member 426. The limiting member 424 extends along the first direction X and is connected to the side of the bracket 421 away from the cylinder 2. One end of the third baffle 425 is engaged with the end of the limiting member 424, and the other end has a second through hole. The portion of the push rod 41 exposed outside the bracket 421 passes through the second through hole. The second elastic member 426 is sleeved on the push rod 41, and one end of the second elastic member 426 abuts against the side of the bracket 421 away from the cylinder 2, and the other end abuts against the third baffle 425.

[0077] In this embodiment, to ensure operational safety and controllability, the pushing mechanism 4 is provided with a limiting member 424, a third baffle 425, and a second elastic member 426. The second elastic member 426 is selected from at least one of a helical spring, a butterfly spring, and a rubber elastomer. Under the restriction of the limiting member 424 and the third baffle 425, the second elastic member 426 can buffer the reset of the push rod 41, provide smooth resistance when the push rod 41 is reset, and prevent the push rod 41 from moving excessively.

[0078] In some embodiments, to adapt to automated industrial processes and improve work efficiency, automated dispensing of adhesive from the nozzle is achieved through automated design. During the dispensing stage, a first drive mechanism drives a first baffle 13 to slide along the first direction X to the opening 12, and a second drive mechanism drives a second sealing member 18 to insert into the first through hole. After the first baffle 13 and the second sealing member 18 are in place, a third drive mechanism presses the second pusher 4222 to move the push rod 41, applying controllable pressure to the adhesive in the adhesive cartridge 3, causing the adhesive to flow out from the dispensing nozzle.

[0079] When it is necessary to stop dispensing adhesive, the reverse operation process is executed. The third drive mechanism stops pressing the second pusher 4222, the first drive mechanism drives the first baffle 13 to slide away from the opening 12, the second drive mechanism then pulls out the second seal 18, and the fourth drive mechanism drives the second baffle 14 to insert into the dispensing channel 11 from the opening 12 to form a physical blockage, overcoming the problem of adhesive flowing due to inertia and avoiding excessive dispensing.

[0080] The driving mechanism used in this embodiment, and the connection method between the driving mechanism and the corresponding components in the dispensing device, are widely used in the field of industrial automation. Those skilled in the art can select appropriate driving mechanisms and connection structures according to specific application scenarios.

[0081] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0082] Although alternative embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make further changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the alternative embodiments as well as all changes and modifications falling within the scope of the present invention.

[0083] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used merely to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or terminal device that includes that element.

[0084] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the principle and implementation of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A glue dispensing nozzle, characterized in that, include: The dispensing nozzle body (1) has intersecting first direction (X) and second direction (Y). The dispensing nozzle body (1) has a dispensing channel (11) along the first direction (X) and an opening (12) along the second direction (Y). The opening (12) is connected to the dispensing channel (11). The first baffle (13) is slidably connected to the dispensing nozzle body (1); The second baffle (14) is movably connected to the dispensing nozzle body (1); The dispensing nozzle has a dispensing state and a closed state. In the dispensing state, the first baffle (13) slides to the opening (12) to close the opening (12). In the closed state, the first baffle (13) slides away from the opening (12) to avoid the opening (12), and the second baffle (14) is inserted into the dispensing channel (11) from the opening (12) to block the dispensing channel (11).

2. The dispensing nozzle according to claim 1, characterized in that, The glue dispensing channel (11) extends through the glue dispensing nozzle body (1) along the first direction (X), and the glue dispensing channel (11) is a through hole of equal diameter.

3. The dispensing nozzle according to claim 2, characterized in that, The dispensing nozzle body (1) also has a third direction (Z), which intersects with the first direction (X) and the second direction (Y); The dispensing nozzle body (1) has a first guide groove (15) and a second guide groove (16) on its side wall. The first guide groove (15) and the second guide groove (16) extend along the first direction (X) and are arranged opposite to each other along the third direction (Z). The first guide groove (15), the second guide groove (16) and the opening (12) are located on the same side of the dispensing nozzle body (1). The first baffle (13) is slidably connected to the first guide groove (15) and the second guide groove (16).

4. The dispensing nozzle according to claim 3, characterized in that, The first baffle (13) is provided with a first sealing element (131) on the side near the dispensing nozzle body (1), and the first sealing element (131) protrudes from the first baffle (13) along the second direction (Y); In the dispensing state, the first seal (131) is embedded in the opening (12) to seal the gap between the opening (12) and the first baffle (13).

5. The dispensing nozzle according to claim 3 or 4, characterized in that, The second baffle (14) has a first protrusion (141) on each side away from the end of the dispensing nozzle body (1), and the first protrusion (141) protrudes from the second baffle (14) along the third direction (Z); In the closed state, the second baffle (14) is inserted into the glue outlet channel (11) from the opening (12) along the second direction (Y), and the first protrusion (141) abuts against the side wall edge of the first guide groove (15) and the second guide groove (16); And / or, the dispensing nozzle body (1) further includes a second protrusion (17), the second protrusion (17) is disposed on the side wall of the dispensing nozzle body (1), and the second protrusion (17) protrudes from the dispensing nozzle body (1) along the third direction (Z); In the dispensing state, the first baffle (13) is mounted on the second protrusion (17) via the first protrusion (141).

6. The dispensing nozzle according to claim 4, characterized in that, The first sealing element (131) is an elastic element, and the size of the elastic element matches the size of the opening (12).

7. The dispensing nozzle according to claim 5, characterized in that, The side wall of the dispensing nozzle body (1) is provided with a first through hole, which communicates with the dispensing channel (11) and is arranged opposite to the opening (12) along the second direction (Y); the dispensing nozzle also includes a second sealing member (18), which is movably inserted into the first through hole; In the dispensing state, the second seal (18) is inserted into the first through hole to close the first through hole. In the closed state, the second seal (18) avoids the first through hole.

8. The dispensing nozzle according to claim 7, characterized in that, The first baffle (13) has a column (19) on the side away from the dispensing nozzle body (1). In the closed state, the second sealing member (18) is housed on the column (19).

9. A glue dispensing device, characterized in that, It includes the glue dispensing nozzle and glue dispensing device body as described in any one of claims 1-8, wherein the glue dispensing nozzle is movably connected to the glue dispensing device body.

10. The glue dispensing device according to claim 9, characterized in that, The glue dispensing device body also includes: Cylinder (2); A glue tube (3) is detachably disposed inside the cylinder (2), and one end of the glue tube (3) is connected to the glue outlet. A pushing mechanism (4) is provided at the other end of the glue cylinder (3). The pushing mechanism (4) is at least partially provided inside the glue cylinder (3) and is slidably connected to the inner wall of the glue cylinder (3) to push the glue in the glue cylinder (3) into the glue outlet.

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