High-precision dismounting and replacing device for glue valve nozzle

Abstract

The utility model discloses a high accuracy dismantling and replacement device of glue valve nozzle, and the nozzle is connected in the lower extreme of glue valve through the thread, and the dismantling and replacement device includes: frame and install three -axis drive mechanism on the frame, and the glue valve is installed on the Z -axis subassembly of three -axis drive mechanism, and the frame is installed with a base below the Z -axis subassembly of three -axis drive mechanism, and the top plate upper surface of base rotatably installs a sleeve, and the upper end of the rotation axis of setting in the base is connected with sleeve, and the rotation axis of transmission connection with a drive mechanism is used for driving sleeve rotation, and a torsion sensor is connected between drive mechanism and rotation axis, and a first visual component is installed on the base, and a second visual component is installed on the Z -axis subassembly of three -axis drive mechanism. The utility model discloses a high accuracy dismantling and replacement device of glue valve nozzle can realize accurate positioning between sleeve and nozzle, can also realize the automatic dismantling and installation of the nozzle on the glue valve, can also improve the accuracy of installation and the efficiency of dismantling.

Description

Technical Field

[0001] This utility model relates to the field of dispensing technology, and in particular to a high-precision dispensing and replacement device for a dispensing valve nozzle. Background Technology

[0002] Dispensing technology involves applying, potting, or dripping adhesives, oils, or other liquids onto a product to achieve insulation, fixation, and a smooth surface. With increasing automation, more and more people are willing to use machines to replace manual labor. Currently, however, the replacement of dispensing valve nozzles still relies on manual labor. This manual disassembly and replacement process is time-consuming and labor-intensive, resulting in low production efficiency and an inability to guarantee precise positioning, thus affecting installation accuracy and disassembly efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-precision replacement device for a glue valve nozzle. This high-precision replacement device for a glue valve nozzle can achieve precise positioning between the sleeve and the nozzle, thereby realizing automatic disassembly and installation of the nozzle on the glue valve, and can also improve the accuracy of installation and the efficiency of disassembly.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-precision replacement device for a glue valve nozzle, wherein the nozzle is threadedly connected to the lower end of the glue valve, and the replacement device includes: a frame and a three-axis drive mechanism mounted on the frame, the glue valve being mounted on the Z-axis assembly of the three-axis drive mechanism, and a base being mounted on the frame and below the Z-axis assembly of the three-axis drive mechanism. A sleeve is rotatably mounted on the top surface of the base, and the upper end of a rotating shaft disposed within the base is connected to the sleeve and drives a drive mechanism. The connected rotating shaft is used to drive the sleeve to rotate. At least one set of mutually cooperating protrusions and grooves are provided between the inner wall of the sleeve into which the nozzle can be embedded and the outer surface of the nozzle. A torque sensor is connected between the driving mechanism and the rotating shaft. The torque sensor is used to sense the torque or torque value brushed by the rotating shaft. A first vision component is installed on the base. The first vision component is used to photograph the lower end face of the glue valve. A second vision component is installed on the Z-axis component of the three-axis driving mechanism. This second vision component is used to photograph the upper end face of the sleeve.

[0005] The following are further improvements to the above technical solution:

[0006] 1. In the above scheme, the first vision component and the second vision component further include: a camera, a lens mounted on the camera, and a light source spaced apart on the side of the lens opposite to the camera.

[0007] 2. In the above scheme, the lens of the first vision component is set facing upwards, and the lens of the second vision component is set facing downwards.

[0008] 3. In the above scheme, the first vision component and the second vision component are each mounted on one side of the glue valve or on the outside of the base via a mounting bracket.

[0009] 4. In the above scheme, a mounting plate is provided below the top plate and inside the base, and the mounting plate is connected to the bottom plate of the base by at least one support or at least two support columns.

[0010] 5. In the above scheme, the driving mechanism is a motor mounted on the lower surface of the mounting plate, and the torque sensor is mounted between the lower end of the motor's output shaft and the rotating shaft.

[0011] 6. In the above scheme, the driving mechanism further includes: a motor mounted on the lower surface of the mounting plate, a drive pulley connected to the output shaft of the motor and located above the mounting plate, and a synchronous pulley that is connected to the drive pulley via a synchronous belt, wherein the synchronous pulley is mounted on a rotating shaft.

[0012] 7. In the above scheme, the torque sensor is connected between the output shaft of the motor and the drive pulley.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This utility model relates to a high-precision nozzle replacement device for a glue valve. A base is mounted on the frame below the Z-axis assembly of a three-axis drive mechanism. A sleeve is rotatably mounted on the top surface of the base. The upper end of a rotating shaft located within the base is connected to the sleeve. This rotating shaft, which is connected to a drive mechanism, drives the sleeve to rotate. At least one set of cooperating protrusions and grooves is provided between the inner wall of the sleeve into which the nozzle can be embedded and the outer surface of the nozzle. A torque sensor is connected between the drive mechanism and the rotating shaft. This torque sensor senses the torque or torque value emitted by the rotating shaft. Precise positioning between the sleeve and the nozzle is achieved through the three-axis movement of the glue valve combined with visual monitoring. Automatic disassembly and installation of the nozzle on the glue valve is achieved through the forward and reverse rotation of the sleeve. Furthermore, the torque sensor can indirectly and in real-time monitor the magnitude of the torque or torque exerted by the sleeve on the nozzle, and precisely control the start and stop of the sleeve rotation based on changes in torque or torque values, thereby improving the accuracy of nozzle installation and the efficiency of nozzle disassembly. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the high-precision replacement device for the glue valve nozzle of this utility model.

[0016] Appendix Figure 2A schematic diagram of the machining valve in the automated nozzle replacement mechanism of this utility model;

[0017] Appendix Figure 3 This is a partial structural diagram of the high-precision replacement device for the glue valve nozzle of this utility model.

[0018] Appendix Figure 4 This is a partial structural diagram of the high-precision replacement device for the glue valve nozzle of this utility model.

[0019] Appendix Figure 5 This is a first partial cross-sectional view of the high-precision replacement device for the glue valve nozzle of this utility model.

[0020] Appendix Figure 6 For the appendix Figure 5 An enlarged view of point A in the partial sectional view shown;

[0021] Appendix Figure 7 This is a schematic diagram of the nozzle installation of the high-precision replacement device for the glue valve nozzle of this utility model.

[0022] Appendix Figure 8 This is a second partial sectional view of the high-precision replacement device for the glue valve nozzle of this utility model.

[0023] In the attached diagrams: 100, Nozzle; 200, Adhesive valve; 1, Top plate; 2, Sleeve; 3, Rotating shaft; 4, Drive mechanism; 41, Motor; 42, Drive pulley; 43, Synchronous belt; 44, Synchronous pulley; 5, Protrusion; 6, Groove; 7, Mounting plate; 71, Support; 8, Bearing; 9, Torque sensor; 10, Base; 11, Bottom plate; 12, Frame; 13, Three-axis drive mechanism; 14, Z-axis assembly; 15, First vision assembly; 16, Second vision assembly; 171, Camera; 172, Lens; 173, Light source; 18, Mounting bracket. Detailed Implementation

[0024] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0025] Example 1: A high-precision replacement device for a glue valve nozzle, wherein the nozzle 100 is threadedly connected to the lower end of the glue valve 200, and the replacement device includes: a frame 12 and a three-axis drive mechanism 13 mounted on the frame 12, the glue valve 200 being mounted on the Z-axis assembly 14 of the three-axis drive mechanism 13, and a base 10 being mounted on the frame 12 and below the Z-axis assembly 14 of the three-axis drive mechanism 13. A sleeve 2 is rotatably mounted on the upper surface of the top plate 1 of the base 10, and the upper end of a rotating shaft 3 disposed within the base 10 is connected to the sleeve 2, and the rotating shaft is driven by a drive mechanism 4. 3 is used to drive the sleeve 2 to rotate. At least one set of mutually cooperating protrusions 5 and grooves 6 are provided between the inner wall of the sleeve 2 into which the nozzle 100 is embedded and the outer surface of the nozzle 100. A torque sensor 9 is connected between the drive mechanism 4 and the rotating shaft 3. The torque sensor 9 is used to sense the torque or torque value brushed by the rotating shaft 3. A first vision component 15 is installed on the base 10. The first vision component 15 is used to photograph the lower end face of the glue valve 200. A second vision component 16 is installed on the Z-axis component 14 of the three-axis drive mechanism 13. The second vision component 16 is used to photograph the upper end face of the sleeve 2.

[0026] A mounting plate 7 is provided below the top plate 1 and inside the base 10. The mounting plate 7 is connected to the bottom plate 11 of the base 10 by at least one support 71 or at least two support columns.

[0027] The aforementioned drive mechanism 4 further includes: a motor 41 mounted on the lower surface of the mounting plate 7, a drive pulley 42 connected to the output shaft of the motor 41 and located above the mounting plate 7, and a synchronous pulley 44 connected to the drive pulley 42 via a synchronous belt 43, wherein the synchronous pulley 44 is mounted on the rotating shaft 3; the aforementioned torque sensor 9 is connected between the output shaft of the motor 41 and the drive pulley 42.

[0028] The aforementioned rotating shaft 3 and mounting plate 7, and the sleeve 2 and base plate 1 are rotatably connected by at least one bearing 8.

[0029] Example 2: A high-precision replacement device for a glue valve nozzle, wherein the nozzle 100 is threadedly connected to the lower end of the glue valve 200, and the replacement device includes: a frame 12 and a three-axis drive mechanism 13 mounted on the frame 12, the glue valve 200 being mounted on the Z-axis assembly 14 of the three-axis drive mechanism 13, and a base 10 being mounted on the frame 12 and below the Z-axis assembly 14 of the three-axis drive mechanism 13. A sleeve 2 is rotatably mounted on the upper surface of the top plate 1 of the base 10, and the upper end of a rotating shaft 3 disposed within the base 10 is connected to the sleeve 2, and the rotating shaft is driven by a drive mechanism 4. 3 is used to drive the sleeve 2 to rotate. At least one set of mutually cooperating protrusions 5 and grooves 6 are provided between the inner wall of the sleeve 2 into which the nozzle 100 is embedded and the outer surface of the nozzle 100. A torque sensor 9 is connected between the drive mechanism 4 and the rotating shaft 3. The torque sensor 9 is used to sense the torque or torque value brushed by the rotating shaft 3. A first vision component 15 is installed on the base 10. The first vision component 15 is used to photograph the lower end face of the glue valve 200. A second vision component 16 is installed on the Z-axis component 14 of the three-axis drive mechanism 13. The second vision component 16 is used to photograph the upper end face of the sleeve 2.

[0030] The first vision component 15 and the second vision component 16 further include: a camera 171, a lens 172 mounted on the camera 171, and a light source 173 spaced apart from the lens 172 on the side opposite to the camera 171; the lens 172 of the first vision component 15 is arranged facing upwards, and the lens 172 of the second vision component 16 is arranged facing downwards; the first vision component 15 and the second vision component 16 are respectively mounted on one side of the glue valve 200 or the outside of the base 10 through a mounting bracket 18.

[0031] Below the top plate 1 and inside the base 10, there is a mounting plate 7. The mounting plate 7 is connected to the bottom plate 11 of the base 10 by at least one support 71 or at least two support columns. The drive mechanism 4 is a motor installed on the lower surface of the mounting plate 7. The torque sensor 9 is installed between the output shaft of the motor and the lower end of the rotating shaft 3.

[0032] Several grooves 6 extending vertically are distributed circumferentially on the outer surface of the lower end of the nozzle 100, and several protrusions 5 that cooperate with the grooves 6 are distributed circumferentially on the inner wall of the upper end of the sleeve 2.

[0033] When it is necessary to install the nozzle onto the glue valve: First, insert the nozzle to be installed into the sleeve, so that the protrusions and grooves on the nozzle and the sleeve interlock; then, move the glue valve without the nozzle installed to directly above the nozzle installed in the sleeve through the three-axis drive mechanism; then, drive the glue valve to gradually move down so that the area where the lower end of the glue valve is threadedly connected to the nozzle is gradually embedded into the nozzle. At the same time, drive the rotating shaft to rotate in the forward direction through the drive mechanism, thereby automatically installing the nozzle onto the glue valve through the rotational engagement between the threads;

[0034] When it is necessary to detach the nozzle from the glue valve: First, the second vision component is moved above the top plate of the base by the three-axis drive mechanism, and at least one sleeve on it is photographed; then, the glue valve with the nozzle installed is moved directly above the first vision component by the three-axis drive mechanism, and the nozzle on the glue valve is photographed by the first vision component. The photos taken by the first vision component and the second vision component are compared first, and then the position of the sleeve on the top plate that was photographed by the first vision component is adjusted according to the comparison result, so that the groove or protrusion on the sleeve is precisely matched with the protrusion or groove of the nozzle on the glue valve.

[0035] Then, the drive valve moves down, causing the nozzle on the valve to be embedded in the sleeve, and the protrusions and grooves on the nozzle and sleeve are interlocked. Then, the drive mechanism drives the rotating shaft to rotate in the opposite direction. At the same time, the drive valve gradually moves up, causing the area where the lower end of the valve is threadedly connected to the nozzle to gradually decrease until the lower end of the valve completely leaves the nozzle remaining in the sleeve, thereby automatically detaching the nozzle from the valve.

[0036] The above disassembly and assembly processes can be used in combination. For example, the old nozzle that has been used for a period of time can be removed from the glue valve first, and then the new nozzle can be installed on the glue valve to achieve automated replacement.

[0037] Most importantly, during the above-mentioned disassembly and assembly of the nozzle:

[0038] First, set the torque threshold during disassembly and assembly based on the torque required when the threads between the nozzle and the glue valve are tightened together and the torque required to drive the nozzle to rotate when the threads are fully unscrewed (e.g., the minimum torque required when tightening is 0.5 N·m).

[0039] Next, the torque or torque force exerted by the sleeve on the nozzle is indirectly and in real time obtained through a torque sensor. When the torque force exerted by the sleeve on the nozzle reaches the set corresponding threshold, it indicates that the installation or removal of the nozzle is completed. The start and stop of the sleeve rotation are precisely controlled according to the change of torque or torque value, thereby improving the accuracy of nozzle installation and the efficiency of nozzle removal.

[0040] When using the aforementioned high-precision nozzle replacement device, the precise positioning between the sleeve and the nozzle is achieved through the three-axis movement of the glue valve combined with vision. Then, the nozzle on the glue valve is automatically disassembled and installed by rotating the sleeve in both directions. Furthermore, the torque sensor can indirectly and in real time monitor the torque or torque force exerted by the sleeve on the nozzle, and precisely control the start and stop of the sleeve rotation based on the changes in torque or torque value, thereby improving the accuracy of nozzle installation and the efficiency of nozzle disassembly.

[0041] The three-axis drive mechanism, torque sensor and vision components involved in the technical solution are all purchased externally and fall within the scope of existing technology, so they will not be described in detail here.

[0042] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-precision replacement device for a glue valve nozzle, wherein the nozzle (100) is threadedly connected to the lower end of a glue valve (200), and the replacement device comprises: The machine frame (12) and a three-axis drive mechanism (13) mounted on the machine frame (12), wherein the glue valve (200) is mounted on the Z-axis assembly (14) of the three-axis drive mechanism (13), characterized in that: a base (10) is mounted on the machine frame (12) and located below the Z-axis assembly (14) of the three-axis drive mechanism (13), a sleeve (2) is rotatably mounted on the upper surface of the top plate (1) of the base (10), the upper end of a rotating shaft (3) disposed in the base (10) is connected to the sleeve (2), and the rotating shaft (3) is driven by a drive mechanism (4) for driving the sleeve (2) to rotate, allowing the nozzle (100) to be embedded. At least one set of mutually cooperating protrusions (5) and grooves (6) are provided between the inner wall of the sleeve (2) and the outer surface of the nozzle (100). A torque sensor (9) is connected between the drive mechanism (4) and the rotating shaft (3). The torque sensor (9) is used to sense the torque or torque value brushed by the rotating shaft (3). A first vision component (15) is installed on the base (10). The first vision component (15) is used to photograph the lower end face of the glue valve (200). A second vision component (16) is installed on the Z-axis component (14) of the three-axis drive mechanism (13). The second vision component (16) is used to photograph the upper end face of the sleeve (2).

2. The high-precision replacement device for the glue valve nozzle according to claim 1, characterized in that: The first vision component (15) and the second vision component (16) each further include: a camera (171), a lens (172) mounted on the camera (171) and a light source (173) spaced apart from the lens (172) on the side opposite to the camera (171).

3. The high-precision replacement device for the glue valve nozzle according to claim 2, characterized in that: The lens (172) of the first visual component (15) is set upward, and the lens (172) of the second visual component (16) is set downward.

4. The high-precision replacement device for the glue valve nozzle according to claim 1 or 2, characterized in that: The first vision component (15) and the second vision component (16) are each mounted on one side of the glue valve (200) or the outside of the base (10) via a mounting bracket (18).

5. The high-precision replacement device for the glue valve nozzle according to claim 1, characterized in that: A mounting plate (7) is provided below the top plate (1) and inside the base (10). The mounting plate (7) is connected to the bottom plate (11) of the base (10) by at least one support (71) or at least two support columns.

6. The high-precision replacement device for the glue valve nozzle according to claim 5, characterized in that: The drive mechanism (4) is a motor installed on the lower surface of the mounting plate (7), and the torque sensor (9) is installed between the output shaft of the motor and the lower end of the rotating shaft (3).

7. The high-precision replacement device for the glue valve nozzle according to claim 5, characterized in that: The drive mechanism (4) further includes: a motor (41) mounted on the lower surface of the mounting plate (7), a drive pulley (42) connected to the output shaft of the motor (41) and located above the mounting plate (7), and a synchronous pulley (44) connected to the drive pulley (42) via a synchronous belt (43), the synchronous pulley (44) being mounted on the rotating shaft (3).

8. The high-precision replacement device for the glue valve nozzle according to claim 7, characterized in that: The torque sensor (9) is connected between the output shaft of the motor (41) and the drive pulley (42).

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