Bent pipe nozzle for dispensing

Abstract

The utility model discloses an elbow nozzle for dispensing, which comprises a steering adjusting mechanism, an angle adjusting mechanism for adjusting the inclination angle is arranged below the steering adjusting mechanism, and a connecting mechanism is arranged below the angle adjusting mechanism. On one hand, through the unique bent structural design of the head of the nozzle, the limitation of a common nozzle with a straight pipe structure on space and angle is broken through, a part which is narrow in position or forms a certain angle with the dispensing head can be glued, the application range of dispensing operation is widened, and the problem of gluing on a special part is solved; on the other hand, an angle adjusting mechanism is arranged, an operator can accurately control the rotating angle of a worm gear by controlling the rotating direction and the number of turns of a worm, a lower structure is driven to change the inclination angle, the angle of the nozzle head and the gluing part can be freely adjusted according to needs, precise gluing is achieved, and the dispensing quality and precision are improved; and the strict requirements of different workpieces and the dispensing process on the inclination angle are met.

Description

Technical Field

[0001] This utility model relates to the field of 3C product manufacturing equipment technology, and in particular to a curved nozzle for dispensing adhesive. Background Technology

[0002] In the current dispensing industry, most dispensing nozzles on the market are straight-tube structures. However, in actual industrial production scenarios, many areas requiring dispensing present unique challenges. Some locations have limited space, making it difficult for ordinary straight-tube nozzles to reach them; others form an angle with the dispensing head, which the tip of existing straight-tube nozzles cannot reach. This prevents effective dispensing in these challenging locations and fails to meet the requirements for precise angled dispensing.

[0003] For example, in the electronics industry, straight nozzles show significant shortcomings when performing surface coating and encapsulation on areas with special angles or that are difficult to reach. They struggle to perform tasks such as fixing PCB boards, bonding connecting wires, sealing precision components, and protecting internal circuitry. In the medical field, sealing medical consumables and bonding components of medical devices face similar challenges. Ordinary straight nozzle structures limit dispensing operations in specific locations, necessitating a new type of dispensing nozzle to address these difficulties.

[0004] Therefore, we propose a curved nozzle for dispensing. Utility Model Content

[0005] The main purpose of this utility model is to provide a curved nozzle for dispensing. In order to prevent the problem that the existing straight tube dispensing nozzle cannot effectively perform dispensing operations in narrow spaces and special parts with an angle to the dispensing head, resulting in the inability to complete dispensing operations in special positions such as PCB board fixing and medical consumable sealing in the electronics industry and medical field, the present invention improves the applicability and accuracy of dispensing operations in complex scenarios and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A curved nozzle for dispensing includes a steering adjustment mechanism, an angle adjustment mechanism for tilt angle adjustment is provided below the steering adjustment mechanism, a connecting mechanism is provided below the angle adjustment mechanism, a dispensing valve body is provided on one side of the connecting mechanism, a nozzle body is provided at the bottom of the dispensing valve body, and a curved tube is provided on the nozzle body.

[0008] The angle adjustment mechanism includes a fixed base, on which two symmetrical support plates are fixedly connected to the bottom surface of the fixed base. A worm gear is provided between the two support plates. Two symmetrical ear plates are also fixedly connected to the bottom surface of the fixed base. A worm is provided between the two ear plates above the worm gear. The two ends of the worm pass through the ear plates and are rotatably connected to the ear plates through bearings. The worm meshes with the worm gear.

[0009] By adopting the above technical solution, the steering adjustment mechanism can make the entire device turn horizontally. The operator can control the steering adjustment mechanism to make the entire dispensing curved nozzle rotate to the appropriate direction on the horizontal plane, so that the dispensing position can be aligned with the workpiece part that needs to be dispensed, and prepare for the horizontal positioning of subsequent precise dispensing.

[0010] When the tilt angle of the dispensing needs to be adjusted, the angle adjustment mechanism comes into play. When the worm rotates, since both ends of the worm are rotatably connected to the ear plates through bearings, the worm can rotate flexibly between the ear plates. The worm meshes with the worm wheel. According to the worm wheel transmission principle, the rotation of the worm will drive the rotation of the worm wheel. The worm wheel is set between the two support plates and is connected to the subsequent connecting mechanism and other components. The rotation of the worm wheel will cause the entire lower structure connected to it, including the connecting mechanism, the dispensing valve body, the nozzle body, and the bend tube, to change the tilt angle. By controlling the rotation direction and number of rotations of the worm, the rotation angle of the worm wheel can be precisely controlled, thereby achieving precise adjustment of the nozzle tilt angle to meet the tilt angle requirements of different workpieces and dispensing processes.

[0011] After the steering and tilt angles are adjusted, the dispensing valve body begins to work. The dispensing valve body controls the on / off state and flow rate of the glue. The glue flows out from the dispensing valve body, passes through the nozzle body and the bend, and finally drips accurately onto the workpiece at the position where glue needs to be dispensed, completing the dispensing operation.

[0012] Furthermore, the steering adjustment mechanism includes a top plate, a bracket is fixed to the bottom surface of the top plate, a connecting shaft is provided on the bracket, and the bottom end of the connecting shaft passes through the bracket and is rotatably connected to the bottom end of the fixed seat through a bearing.

[0013] By adopting the above technical solution, the top plate, as the supporting component of the entire steering adjustment mechanism, is fixed on the dispensing equipment, providing a stable installation base for the entire mechanism. The bracket is fixed on the bottom surface of the top plate, serving to connect and support the connecting shaft. The connecting shaft is installed on the bracket, with its bottom end passing through the bracket and rotatably connected to the top of the fixed seat through a bearing. The presence of the bearing allows the connecting shaft to rotate flexibly within the bracket.

[0014] The fixed base is part of the angle adjustment mechanism. As the fixed base rotates, it drives the entire angle adjustment mechanism, the connecting mechanism connected to the angle adjustment mechanism, the dispensing valve body, the nozzle body, and the bend to rotate together. This realizes the horizontal direction adjustment of the dispensing bend nozzle, allowing the nozzle to be aligned with the workpiece to be dispensed at different positions to meet diverse dispensing needs. The direction adjustment mechanism is supported by the top plate and uses the rotating connection between the connecting shaft and the fixed base to realize the horizontal direction adjustment function of the dispensing bend nozzle, providing a basis for position adjustment for precise dispensing.

[0015] Furthermore, a secondary gear is coaxially fixed on the connecting shaft near the top end, and a primary gear meshes with one side of the secondary gear. A first motor is fixed on the bottom surface of the bracket, and the output shaft of the first motor passes through the bracket and is coaxially fixed with the primary gear.

[0016] By adopting the above technical solution, the first motor is fixed to the bottom surface of the bracket, serving as the power source for the entire steering adjustment action. When it is necessary to adjust the steering of the dispensing nozzle, the operator starts the first motor, which begins to run and output power. Its output shaft passes through the bracket and is coaxially fixed with the main gear. Therefore, the rotation of the first motor's output shaft directly drives the main gear to rotate synchronously. The main gear and the auxiliary gear mesh with each other. The auxiliary gear is coaxially fixed on the connecting shaft near the top. According to the principle of gear transmission, when the main gear rotates under the drive of the first motor, the teeth of the main gear interact with the teeth of the auxiliary gear, transmitting power to the auxiliary gear, thereby driving the auxiliary gear to rotate. Since the auxiliary gear is coaxially fixed with the connecting shaft, the rotation of the auxiliary gear will drive the connecting shaft to rotate. The connecting shaft rotates together, and because the bottom end of the connecting shaft is rotatably connected to the top end of the fixed seat through a bearing, the rotation of the connecting shaft will cause the fixed seat to rotate around the axis of the connecting shaft. The fixed seat is part of the angle adjustment mechanism. The rotation of the fixed seat will drive the entire angle adjustment mechanism, as well as the connected connecting mechanism, the dispensing valve body, the nozzle body, and the bent tube to rotate together. By controlling the forward and reverse rotation and the number of rotations of the first motor, the transmission of the main gear and the auxiliary gear can be precisely controlled, thereby realizing the precise horizontal direction adjustment of the dispensing bent tube nozzle to meet different dispensing position requirements. Through the power output of the first motor, the transmission of the main gear and the auxiliary gear drives the connecting shaft to rotate, ultimately realizing the horizontal direction adjustment function of the dispensing bent tube nozzle.

[0017] Furthermore, a second motor is bolted to the top surface of the fixed base at the edge, and two pulleys are provided on one side of the second motor, which are connected by belt drive.

[0018] By adopting the above technical solution, the second motor is fixed to the top edge of the mounting base with bolts. When the second motor is started, it begins to run, and its output shaft generates rotational power, providing a power source for subsequent transmission. Two pulleys are provided on one side of the second motor. One pulley is usually connected to the output shaft of the second motor and is called the driving pulley; the other is the driven pulley. The two pulleys are connected by a belt for transmission. When the second motor drives the driving pulley to rotate, due to the friction between the belt and the two pulleys, the rotation of the driving pulley will transmit power to the driven pulley through the belt, causing the driven pulley to rotate as well. This belt drive method has the advantages of simple structure, smooth transmission, shock absorption, and the ability to transmit power over a large center distance. The second motor outputs power, which is transmitted to subsequent related components through the transmission of pulleys and belt, thereby realizing the adjustment of specific actions in the dispensing process.

[0019] Furthermore, one of the pulleys is coaxially fixed to the output shaft of the second motor, and the other pulley is coaxially fixed to one end of the worm gear.

[0020] By adopting the above technical solution, the second motor is fixed at the top edge of the fixed base. When it is necessary to adjust the tilt angle of the dispensing nozzle, the operator starts the second motor, and the second motor starts to run. Its output shaft generates rotational power. Since one of the pulleys is fixed coaxially with the output shaft of the second motor, the pulley will rotate synchronously with the rotation of the output shaft of the second motor, becoming the driving pulley. The two pulleys are connected by belt drive. The driving pulley rotates under the drive of the second motor. There is friction between the belt and the two pulleys. The rotation of the driving pulley is transmitted to the driven pulley through the friction of the belt, causing the driven pulley to rotate as well. Belt drive has the characteristics of smooth transmission and shock absorption, which can effectively reduce vibration and impact during transmission and ensure the stability of power transmission.

[0021] Another pulley is coaxially fixed to one end of the worm, so the rotation of the driven pulley will drive the worm to rotate synchronously. In the angle adjustment mechanism, the worm and the worm wheel mesh. According to the worm wheel transmission principle, the rotation of the worm will drive the worm wheel to rotate. The worm wheel is set between the two support plates and is connected to subsequent connecting mechanisms and other components. The rotation of the worm wheel will cause the entire lower structure connected to it, including the connecting mechanism, the dispensing valve body, the nozzle body, and the bend, to change the tilt angle. By controlling the forward and reverse rotation and the number of rotations of the second motor, the rotation direction and angle of the driving wheel can be precisely controlled. Then, the rotation of the driven pulley and the worm can be precisely controlled through belt transmission, ultimately achieving precise control of the worm wheel rotation angle and achieving precise adjustment of the nozzle tilt angle to meet the tilt angle requirements of different workpieces and dispensing processes.

[0022] Furthermore, the connecting mechanism includes a connecting frame, on which a horizontal shaft is fixedly connected. The horizontal shaft passes through a worm gear and is fixed coaxially with the worm gear. Both ends of the horizontal shaft pass through support plates and are rotatably connected to the support plates.

[0023] By adopting the above technical solution, since the horizontal shaft and the worm gear are fixed coaxially, the rotation of the worm gear will directly drive the horizontal shaft to rotate synchronously. The horizontal shaft passes through the support plate and is rotatably connected to the support plate. The support plate provides support for the horizontal shaft, enabling the horizontal shaft to rotate stably around its own axis. This rotatable connection method ensures that the horizontal shaft will not be subject to additional obstruction when it receives the power of the worm gear and rotates, thus ensuring the smoothness of power transmission.

[0024] The connecting frame is fixedly connected to the horizontal shaft. When the horizontal shaft rotates, the connecting frame will rotate together with the horizontal shaft. The rotation of the connecting frame will drive the dispensing valve body, nozzle body and bend tube connected to it to move together, thereby realizing the tilt angle adjustment of the entire dispensing component. This structural design transmits the rotation of the worm gear to the connecting frame through the horizontal shaft, thereby adjusting the angle of the dispensing part, so that the dispensing can be operated at a suitable angle to meet different dispensing process requirements.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) This utility model discloses a curved nozzle for dispensing, which, through a unique curved nozzle head structure design, successfully overcomes the spatial and angular limitations of ordinary straight-tube nozzles. For narrow areas or areas that form a certain angle with the dispensing head, the curved nozzle, with its special curved design, can smoothly extend the nozzle tip to the target area, thereby enabling dispensing operations on these previously inaccessible areas. This greatly expands the application range of dispensing operations, enabling dispensing of workpieces with various complex shapes and positions in many fields such as the electronics industry and the medical industry, effectively solving the problem that existing technologies cannot dispense adhesive to special areas.

[0027] (2) This utility model provides a curved nozzle for dispensing, which is equipped with an angle adjustment mechanism. The operator can precisely control the rotation angle of the worm wheel by controlling the rotation direction and number of rotations of the worm. Since the worm wheel is connected to the connecting mechanism, the dispensing valve body, the nozzle body, and the lower structure such as the curved tube, the rotation of the worm wheel can drive the entire lower structure to change the tilt angle. This allows the angle between the nozzle head and the dispensing part to be freely adjusted according to actual needs. No matter how complex the shape of the workpiece and the angle required by the dispensing process are, the glue can be accurately dripped to the position where it needs to be dispensed by precisely adjusting the angle, thus achieving precise dispensing. This greatly improves the quality and accuracy of dispensing and meets the strict requirements of different workpieces and dispensing processes for the tilt angle. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a curved nozzle for dispensing adhesive according to the present invention.

[0029] Figure 2 This is a schematic diagram of the steering adjustment mechanism, angle adjustment mechanism, and connection mechanism of a curved nozzle for dispensing adhesive according to this utility model.

[0030] Figure 3 This is a schematic diagram of the nozzle body and the three-dimensional structure of a curved nozzle for dispensing according to the present invention.

[0031] Figure 4 This is a three-dimensional bottom view of the nozzle body and the curved tube of a curved nozzle for dispensing according to this utility model.

[0032] Figure 5 This is a cross-sectional view of the nozzle body and the curved tube of a curved nozzle for dispensing according to the present invention.

[0033] In the diagram: 1. Steering adjustment mechanism; 2. Angle adjustment mechanism; 3. Connecting mechanism; 4. Dispensing valve body; 5. Nozzle body; 6. Bend; 7. Bracket; 8. Connecting shaft; 9. Secondary gear; 10. Top plate; 11. Main gear; 12. Fixed seat; 13. Support plate; 14. Worm gear; 15. Ear plate; 16. Worm; 17. First motor; 18. Second motor; 19. Pulley; 20. Belt; 21. Horizontal shaft; 22. Connecting frame. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0035] To prevent the limitations of existing straight-tube dispensing nozzles in effectively dispensing glue in confined spaces and at angles to the dispensing head, thus hindering glue application in specialized areas such as PCB board mounting and medical consumable sealing in industries like electronics and medicine, and to improve the applicability and accuracy of dispensing in complex scenarios, such as… Figure 1 , Figure 2 , Figure 3 As shown, a curved nozzle for dispensing includes a steering adjustment mechanism 1, an angle adjustment mechanism 2 for tilt angle adjustment is provided below the steering adjustment mechanism 1, a connecting mechanism 3 is provided below the angle adjustment mechanism 2, a dispensing valve body 4 is provided on one side of the connecting mechanism 3, a nozzle body 5 is provided at the bottom of the dispensing valve body 4, and a curved tube 6 is provided on the nozzle body 5.

[0036] The angle adjustment mechanism 2 includes a fixed base 12, on the bottom surface of which two symmetrical support plates 13 are fixedly connected. A worm gear 14 is provided between the two support plates 13. The bottom surface of the fixed base 12 is also fixedly connected to two symmetrical ear plates 15. A worm 16 is provided between the two ear plates 15 above the worm gear 14. The two ends of the worm 16 pass through the ear plates 15 and are rotatably connected to the ear plates 15 through bearings. The worm 16 meshes with the worm gear 14.

[0037] When in use, the steering adjustment mechanism 1 can make the entire device turn horizontally. By controlling the steering adjustment mechanism 1, the operator can rotate the entire dispensing curved nozzle to the appropriate direction on the horizontal plane, so that the dispensing position can be aligned with the workpiece part that needs to be dispensed, thus preparing the horizontal positioning for subsequent precise dispensing.

[0038] When the tilt angle of the dispensing needs to be adjusted, the angle adjustment mechanism 2 comes into play. When the worm 16 rotates, since the two ends of the worm 16 are rotatably connected to the ear plate 15 through bearings, the worm 16 can rotate flexibly between the ear plates 15. The worm 16 meshes with the worm wheel 14. According to the worm wheel transmission principle, the rotation of the worm 16 will drive the worm wheel 14 to rotate. The worm wheel 14 is set between the two support plates 13 and is connected to the subsequent connecting mechanism 3 and other components. The rotation of the worm wheel 14 will cause the entire lower structure connected to it, including the connecting mechanism 3, the dispensing valve body 4, the nozzle body 5, and the bend 6, to change the tilt angle. By controlling the rotation direction and number of rotations of the worm 16, the rotation angle of the worm wheel 14 can be precisely controlled, thereby achieving precise adjustment of the nozzle tilt angle to meet the tilt angle requirements of different workpieces and dispensing processes.

[0039] After the steering and tilt angles are adjusted, the dispensing valve body 4 starts to work. The dispensing valve body 4 controls the on / off state and flow rate of the glue. The glue flows out from the dispensing valve body 4, passes through the nozzle body 5 and the bend 6, and finally drips accurately onto the workpiece at the position where glue needs to be dispensed, thus completing the dispensing operation.

[0040] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes a steering adjustment mechanism 1 comprising a top plate 10, a bracket 7 fixed on the bottom surface of the top plate 10, a connecting shaft 8 provided on the bracket 7, the bottom end of the connecting shaft 8 passing through the bracket 7 and rotatably connected to the bottom end of the fixed seat 12 through a bearing.

[0041] In use, the top plate 10 serves as a support component for the entire steering adjustment mechanism 1 and is fixed on the dispensing equipment, providing a stable installation base for the entire mechanism. The bracket 7 is fixed on the bottom surface of the top plate 10 and serves to connect and support the connecting shaft 8. The connecting shaft 8 is mounted on the bracket 7, with its bottom end passing through the bracket 7 and rotatably connected to the top of the fixed seat 12 through a bearing. The presence of the bearing allows the connecting shaft 8 to rotate flexibly within the bracket 7.

[0042] The fixed base 12 is part of the angle adjustment mechanism 2. As the fixed base 12 rotates, it drives the entire angle adjustment mechanism 2, as well as the connecting mechanism 3, dispensing valve body 4, nozzle body 5, and elbow 6 connected to the angle adjustment mechanism 2 to rotate together. This realizes the horizontal direction adjustment of the elbow nozzle for dispensing, so that the nozzle can be aligned with the workpiece to be dispensed at different positions to meet diverse dispensing needs. The direction adjustment mechanism 1 is supported by the top plate 10 and is connected to the fixed base 12 by the connecting shaft 8, realizing the horizontal direction adjustment function of the elbow nozzle for dispensing, providing a basis for position adjustment for precise dispensing.

[0043] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes a secondary gear 9 coaxially fixed on the connecting shaft 8 near the top end, a main gear 11 meshing with one side of the secondary gear 9, and a first motor 17 fixed on the bottom surface of the bracket 7. The output shaft of the first motor 17 passes through the bracket 7 and is coaxially fixed with the main gear 11.

[0044] In use, the first motor 17 is fixed to the bottom surface of the bracket 7, serving as the power source for the entire steering adjustment action. When it is necessary to adjust the steering of the dispensing nozzle, the operator starts the first motor 17. The first motor 17 begins to run and output power. Its output shaft passes through the bracket 7 and is coaxially fixed with the main gear 11. Therefore, the rotation of the output shaft of the first motor 17 will directly drive the main gear 11 to rotate synchronously. The main gear 11 meshes with the secondary gear 9. The secondary gear 9 is coaxially fixed on the connecting shaft 8 near the top. According to the principle of gear transmission, when the main gear 11 rotates under the drive of the first motor 17, the teeth of the main gear 11 interact with the teeth of the secondary gear 9, transmitting power to the secondary gear 9, thereby driving the secondary gear 9 to rotate. Since the secondary gear 9 is coaxially fixed with the connecting shaft 8, the rotation of the secondary gear 9 will drive the connecting shaft... The connecting shaft 8 rotates together, and because the bottom end of the connecting shaft 8 is rotatably connected to the top end of the fixed seat 12 through a bearing, the rotation of the connecting shaft 8 will cause the fixed seat 12 to rotate around the axis of the connecting shaft 8. The fixed seat 12 is part of the angle adjustment mechanism 2. The rotation of the fixed seat 12 will drive the entire angle adjustment mechanism 2 and the connected connecting mechanism 3, dispensing valve body 4, nozzle body 5 and bend 6 to rotate together. By controlling the forward and reverse rotation and the number of rotations of the first motor 17, the transmission of the main gear 11 and the auxiliary gear 9 can be precisely controlled, thereby realizing the precise horizontal direction adjustment of the dispensing bend nozzle to meet different dispensing position requirements. The first motor 17 outputs power, which, through the transmission of the main gear 11 and the auxiliary gear 9, drives the connecting shaft 8 to rotate, ultimately realizing the horizontal direction adjustment function of the dispensing bend nozzle.

[0045] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes a second motor 18 fixedly connected to the top surface of the fixed base 12 at the edge by bolts, and two pulleys 19 are provided on one side of the second motor 18, and the two pulleys 19 are connected by a belt 20 for transmission.

[0046] In use, the second motor 18 is fixed to the top edge of the mounting base 12 with bolts. When the second motor 18 is started, it begins to run, and its output shaft generates rotational power, providing a power source for subsequent transmission. Two pulleys 19 are provided on one side of the second motor 18. One pulley 19 is usually connected to the output shaft of the second motor 18 and is called the driving pulley; the other is the driven pulley. The two pulleys 19 are connected by a belt 20. When the second motor 18 drives the driving pulley to rotate, due to the friction between the belt 20 and the two pulleys 19, the rotation of the driving pulley will transmit power to the driven pulley through the belt 20, causing the driven pulley to rotate as well. This belt drive method has the advantages of simple structure, smooth transmission, shock absorption, and the ability to transmit power over a large center distance. The second motor 18 outputs power, which is transmitted to subsequent related components through the pulleys 19 and the belt 20, thereby realizing the adjustment of specific actions in the dispensing process.

[0047] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes one of the pulleys 19 being coaxially fixed to the output shaft of the second motor 18, and the other pulley 19 being coaxially fixed to one end of the worm gear 16.

[0048] In use, the second motor 18 is fixed at the top edge of the fixed base 12. When it is necessary to adjust the tilt angle of the dispensing nozzle, the operator starts the second motor 18. The second motor 18 starts to run, and its output shaft generates rotational power. Since one of the pulleys 19 is coaxially fixed with the output shaft of the second motor 18, the pulley 19 will rotate synchronously with the rotation of the output shaft of the second motor 18, becoming the driving pulley. The two pulleys 19 are connected by a belt 20. The driving pulley rotates under the drive of the second motor 18. There is friction between the belt 20 and the two pulleys 19. The rotation of the driving pulley is transmitted to the driven pulley 19 through the friction of the belt 20, causing the driven pulley to rotate as well. The belt drive has the characteristics of smooth transmission and shock absorption, which can effectively reduce vibration and impact during the transmission process and ensure the stability of power transmission.

[0049] Another pulley 19 is coaxially fixed to one end of the worm 16, so the rotation of the driven pulley will drive the worm 16 to rotate synchronously. In the angle adjustment mechanism 2, the worm 16 meshes with the worm wheel 14. According to the worm wheel transmission principle, the rotation of the worm 16 will drive the worm wheel 14 to rotate. The worm wheel 14 is set between the two support plates 13 and is connected to the subsequent connecting mechanism 3 and other components. The rotation of the worm wheel 14 will cause the entire lower structure connected to it, including the connecting mechanism 3, the dispensing valve body 4, the nozzle body 5, and the bend 6, to change the tilt angle. By controlling the forward and reverse rotation and the number of rotations of the second motor 18, the rotation direction and angle of the driving pulley can be precisely controlled. Then, the rotation of the driven pulley and the worm 16 can be precisely controlled through belt transmission, and finally the rotation angle of the worm wheel 14 can be precisely controlled to achieve precise adjustment of the nozzle tilt angle to meet the tilt angle requirements of different workpieces and dispensing processes.

[0050] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes a connecting mechanism 3 comprising a connecting frame 22, on which a horizontal shaft 21 is fixedly connected. The horizontal shaft 21 passes through the worm gear 14 and is coaxially fixed with the worm gear 14. Both ends of the horizontal shaft 21 pass through the support plate 13 and are rotatably connected to the support plate 13.

[0051] In use, since the horizontal shaft 21 and the worm gear 14 are fixed coaxially, the rotation of the worm gear 14 will directly drive the horizontal shaft 21 to rotate synchronously. The horizontal shaft 21 passes through the support plate 13 and is rotatably connected to the support plate 13. The support plate 13 provides support for the horizontal shaft 21, so that the horizontal shaft 21 can rotate stably around its own axis. This rotatable connection method ensures that the horizontal shaft 21 will not be subject to additional obstruction when it receives the power of the worm gear 14 and rotates, thus ensuring the smoothness of power transmission.

[0052] The connecting frame 22 is fixedly connected to the horizontal shaft 21. When the horizontal shaft 21 rotates, the connecting frame 22 will rotate together with the horizontal shaft 21. The rotation of the connecting frame 22 will drive the dispensing valve body 4, the nozzle body 5 and the bend 6 connected to it to move together, thereby realizing the tilt angle adjustment of the entire dispensing component. This structural design transmits the rotation of the worm gear 14 to the connecting frame 22 through the horizontal shaft 21, thereby adjusting the angle of the dispensing part, so that the dispensing can be operated at a suitable angle to meet different dispensing process requirements.

[0053] It should be noted that this utility model is a curved nozzle for dispensing adhesive. When the horizontal direction of the curved nozzle needs to be adjusted, the operator starts the first motor 17. The first motor 17 starts running, and its output shaft drives the main gear 11, which is fixed coaxially with it, to rotate synchronously. The main gear 11 meshes with the secondary gear 9. The rotation of the main gear 11 transmits power to the secondary gear 9 through the interaction between the teeth, thereby driving the secondary gear 9 to rotate. Since the secondary gear 9 is fixed coaxially with the connecting shaft 8, the rotation of the secondary gear 9 will drive the connecting shaft 8 to rotate together. The bottom end is rotatably connected to the top of the fixed seat 12 via a bearing. Therefore, the rotation of the connecting shaft 8 will cause the fixed seat 12 to move in a circle around the axis of the connecting shaft 8. The rotation of the fixed seat 12 will drive the entire angle adjustment mechanism 2 and the connected mechanism 3, dispensing valve body 4, nozzle body 5 and bent tube 6 to rotate together. By controlling the forward and reverse rotation and the number of rotations of the first motor 17, the transmission of the main gear 11 and the auxiliary gear 9 can be precisely controlled, thereby realizing the precise direction adjustment of the dispensing bent tube nozzle in the horizontal direction, so that the nozzle is aligned with the workpiece part that needs to be dispensed.

[0054] When the tilt angle of the dispensing needs to be adjusted, the operator starts the second motor 18. The second motor 18 starts running, and its output shaft drives the coaxially fixed driving pulley 19 to rotate synchronously. The driving pulley 19 and the driven pulley 19 are connected by a belt 20. The rotation of the driving pulley 19 is transmitted to the driven pulley 19 through the friction between the belt 20 and the pulley, causing the driven pulley 19 to rotate as well. The driven pulley 19 is coaxially fixed to one end of the worm 16. The rotation of the driven pulley 19 will drive the worm 16 to rotate synchronously. The two ends of the worm 16 are rotatably connected to the ear plates 15 through bearings, ensuring that the worm 16 can rotate flexibly between the ear plates 15. The worm 16 meshes with the worm wheel 14. According to the worm gear transmission principle, the rotation of the worm 16 will drive the worm wheel 14 to rotate. The worm wheel 14 is set between the two support plates 13. Since the horizontal shaft 21 and the worm wheel 14 is coaxially fixed. The rotation of worm gear 14 will directly drive the horizontal shaft 21 to rotate synchronously. The horizontal shaft 21 passes through the support plate 13 and is rotatably connected to the support plate 13. The support plate 13 provides support for the horizontal shaft 21, so that the horizontal shaft 21 can rotate stably around its own axis. The connecting frame 22 is fixedly connected to the horizontal shaft 21. When the horizontal shaft 21 rotates, the connecting frame 22 will rotate with the horizontal shaft 21. The rotation of the connecting frame 22 will drive the dispensing valve body 4, nozzle body 5 and bend 6 connected to it to move together, thereby realizing the precise adjustment of the tilt angle of the entire dispensing component. By controlling the forward and reverse rotation and the number of rotations of the second motor 18, the rotation direction and angle of the active belt pulley 19 can be precisely controlled. Then, the rotation of the driven belt pulley 19 and worm gear 16 can be precisely controlled through belt transmission, and finally the precise control of the rotation angle of worm gear 14 can be achieved to meet the tilt angle requirements of different workpieces and dispensing processes.

[0055] After adjusting the horizontal steering and tilt angle, reconfirm that the position and angle of the nozzle are accurately aligned with the workpiece to be glued. This can be done by observation or by using an auxiliary positioning tool. Once the position is confirmed to be correct, activate the dispensing valve body 4. The dispensing valve body 4 controls the flow and interruption of the glue. The glue flows out from the dispensing valve body 4, passes through the nozzle body 5 and the bend 6, and finally drips accurately onto the workpiece at the location where glue needs to be dispensed, thus completing the dispensing operation.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A curved nozzle for dispensing adhesive, comprising a steering adjustment mechanism (1), characterized in that, Below the steering adjustment mechanism (1) is an angle adjustment mechanism (2) for tilt angle adjustment. Below the angle adjustment mechanism (2) is a connecting mechanism (3). On one side of the connecting mechanism (3) is a dispensing valve body (4). At the bottom of the dispensing valve body (4) is a nozzle body (5). On the nozzle body (5) is a bent pipe (6). The angle adjustment mechanism (2) includes a fixed base (12), on the bottom surface of which two symmetrical support plates (13) are fixedly connected. A worm gear (14) is provided between the two support plates (13). The bottom surface of the fixed base (12) is also fixedly connected to two symmetrical ear plates (15). A worm (16) is provided between the two ear plates (15) above the worm gear (14). The two ends of the worm (16) pass through the ear plates (15) and are rotatably connected to the ear plates (15) through bearings. The worm (16) meshes with the worm gear (14).

2. The curved nozzle for dispensing adhesive according to claim 1, characterized in that: The steering adjustment mechanism (1) includes a top plate (10), and a bracket (7) is fixed on the bottom surface of the top plate (10). A connecting shaft (8) is provided on the bracket (7). The bottom end of the connecting shaft (8) passes through the bracket (7) and is rotatably connected to the bottom end of the fixed seat (12) through a bearing.

3. A curved nozzle for dispensing adhesive according to claim 2, characterized in that: A secondary gear (9) is coaxially fixed on the connecting shaft (8) near the top end. A main gear (11) meshes with one side of the secondary gear (9). A first motor (17) is fixed on the bottom surface of the bracket (7). The output shaft of the first motor (17) passes through the bracket (7) and is coaxially fixed with the main gear (11).

4. The curved nozzle for dispensing according to claim 1, characterized in that: The top surface of the fixed base (12) is fixedly connected to the second motor (18) by bolts at the edge. Two pulleys (19) are provided on one side of the second motor (18), and the two pulleys (19) are connected by a belt (20).

5. A curved nozzle for dispensing adhesive according to claim 4, characterized in that: One of the pulleys (19) is coaxially fixed to the output shaft of the second motor (18), and the other pulley (19) is coaxially fixed to one end of the worm (16).

6. A curved nozzle for dispensing according to claim 1, characterized in that: The connecting mechanism (3) includes a connecting frame (22), on which a horizontal shaft (21) is fixedly connected. The horizontal shaft (21) passes through the worm gear (14) and is fixed coaxially with the worm gear (14). Both ends of the horizontal shaft (21) pass through the support plate (13) and are rotatably connected to the support plate (13).

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