Automatic replacement device for injection valves

Abstract

The utility model discloses an automatic change spare part device of injection valve, and the nozzle is connected in the lower extreme of glue valve through the thread, and the change spare part device includes: frame and install three -axis drive mechanism on the frame, and glue valve installs 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 board 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 a first visual component is installed on the base, and this first visual component is used for shooting the lower end surface of glue valve, and a second visual component is installed on the Z -axis subassembly of three -axis drive mechanism, and this second visual component is used for shooting the upper end surface of sleeve. The utility model discloses an automatic change spare part device of injection valve can realize accurate positioning between sleeve and nozzle, can realize the automatic dismounting and installation of glue valve upper nozzle, can also guarantee good installation accuracy and improve the efficiency of dismounting.

Description

Technical Field

[0001] This utility model relates to the field of dispensing technology, and in particular to an automated component changing device for a spray valve. Background Technology

[0002] Dispensing technology is commonly used in the production of products such as ships and clothing. With increasing automation, more and more people are willing to use machines to replace manual labor. Among them, the dispensing valve is a device used to apply, pot, or drip glue or other liquids. It is widely used in the optical, optoelectronic, and biochemical industries. However, in the current technology, the replacement of the dispensing valve nozzle still relies on manual labor, which reduces the level of automation and efficiency of dispensing and cannot guarantee good installation accuracy. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automated component changing device for a spray valve. This automated component changing device for a spray valve can achieve precise positioning between the sleeve and the nozzle, as well as automatic disassembly and installation of the nozzle on the spray valve, and can also ensure good installation accuracy.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automated component changing device for a spray valve, wherein the nozzle is threadedly connected to the lower end of the glue valve, the component changing device includes: a frame and a three-axis drive mechanism mounted on the frame, the glue valve is mounted on the Z-axis assembly of the three-axis drive mechanism, a base is mounted on the frame and below the Z-axis assembly of the three-axis drive mechanism, a sleeve is rotatably mounted on the upper surface of the top plate of the base, the upper end of a rotating shaft disposed in the base is connected to the sleeve, the rotating shaft being driven by a drive mechanism 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 first vision component is mounted on the base, the first vision component is used to photograph the lower end face of the glue valve, and a second vision component is mounted on the Z-axis assembly of the three-axis drive mechanism, the 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, several grooves extending vertically are distributed circumferentially on the outer surface of the lower end of the nozzle, and several protrusions that cooperate with the grooves are distributed circumferentially on the inner wall of the upper end of the sleeve.

[0010] 5. In the above scheme, the outer surface of the protrusion and the inner wall of the groove are both set to be arc-shaped.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] This utility model relates to an automated component changing device for a spray 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. Precise positioning between the sleeve and the nozzle is achieved visually through the three-axis movement of the adhesive valve. Automatic disassembly and installation of the nozzle on the adhesive valve is achieved through the forward and reverse rotation of the sleeve, ensuring good installation accuracy and improving disassembly and installation efficiency. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the overall structure of the automated component changing device for the injection valve of this utility model.

[0014] Appendix Figure 2 A schematic diagram of the machining valve in the automated nozzle replacement mechanism of this utility model;

[0015] Appendix Figure 3 This is a three-dimensional cross-sectional view of the automated component changing device for the jet valve of this utility model;

[0016] Appendix Figure 4 Appendix to this utility model Figure 3 Enlarged view of point A;

[0017] Appendix Figure 5 This is a partial structural schematic diagram of the automated component changing device for the injection valve of this utility model;

[0018] Appendix Figure 6 This is a partial structural schematic diagram of the automated component changing device for the injection valve of this utility model;

[0019] Appendix Figure 7 This is a partial cross-sectional view of the automated component changing device for the injection valve of this utility model.

[0020] 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; 8, Bearing; 9, Frame; 10, Three-axis drive mechanism; 101, Z-axis assembly; 11, Base; 111, Base plate; 12, First vision assembly; 13, Second vision assembly; 141, Camera; 142, Lens; 143, Light source; 15, Mounting bracket. Detailed Implementation

[0021] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0022] Example 1: An automated component changing device for a spray valve, wherein the nozzle 100 is threadedly connected to the lower end of the glue valve 200, and the component changing device includes: a frame 9 and a three-axis drive mechanism 10 mounted on the frame 9, the glue valve 200 being mounted on the Z-axis assembly 101 of the three-axis drive mechanism 10, a base 11 being mounted on the frame 9 and located below the Z-axis assembly 101 of the three-axis drive mechanism 10, a sleeve 2 being rotatably mounted on the upper surface of the top plate 1 of the base 11, and the upper end of a rotating shaft 3 disposed within the base 11 being connected to the nozzle 100. The sleeve 2 is connected to the rotating shaft 3, which is driven by a drive mechanism 4, for driving 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 first vision component 12 is installed on the base 11, which is used to photograph the lower end face of the glue valve 200. A second vision component 13 is installed on the Z-axis component 101 of the three-axis drive mechanism 10, which is used to photograph the upper end face of the sleeve 2.

[0023] The first vision component 12 and the second vision component 13 further include: a camera 141, a lens 142 mounted on the camera 141, and a light source 143 spaced apart from the lens 142 on the side opposite to the camera 141; the lens 142 of the first vision component 12 is arranged facing upwards, and the lens 142 of the second vision component 13 is arranged facing downwards; the first vision component 12 and the second vision component 13 are each mounted on one side of the glue valve 200 or the outside of the base 11 via a mounting bracket 15.

[0024] A mounting plate 7 is provided below the substrate 1, and the rotating shaft 3 is rotatably connected to the mounting plate 7 and the sleeve 2 is rotatably connected to the top plate 1 by at least one bearing 8.

[0025] Example 2: An automated component changing device for a spray valve, wherein the nozzle 100 is threadedly connected to the lower end of the glue valve 200, and the component changing device includes: a frame 9 and a three-axis drive mechanism 10 mounted on the frame 9, the glue valve 200 being mounted on the Z-axis assembly 101 of the three-axis drive mechanism 10, a base 11 being mounted on the frame 9 and located below the Z-axis assembly 101 of the three-axis drive mechanism 10, a sleeve 2 being rotatably mounted on the upper surface of the top plate 1 of the base 11, and the upper end of a rotating shaft 3 disposed within the base 11 being connected to the nozzle 100. The sleeve 2 is connected to the rotating shaft 3, which is driven by a drive mechanism 4, for driving 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 first vision component 12 is installed on the base 11, which is used to photograph the lower end face of the glue valve 200. A second vision component 13 is installed on the Z-axis component 101 of the three-axis drive mechanism 10, which is used to photograph the upper end face of the sleeve 2.

[0026] 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; the outer surface of the protrusions 5 and the inner wall of the grooves 6 are both arc-shaped.

[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.

[0028] 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;

[0029] 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.

[0030] 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.

[0031] 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.

[0032] When using the above-mentioned automated part changing device for the injection valve, the device achieves precise positioning between the sleeve and the nozzle by using the three-axis movement of the glue valve in conjunction with vision. Then, the nozzle on the glue valve is automatically disassembled and installed by rotating the sleeve in the forward and reverse directions. This ensures good installation accuracy and improves the efficiency of disassembly and assembly.

[0033] The three-axis drive mechanism 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.

[0034] 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. An automated replacement device for a spray valve, a nozzle (100) of the spray valve being threadably connected to a lower end of a dip tube (200), the replacement device comprising: A frame (9) and a three-axis drive mechanism (10) mounted on the frame (9), wherein the glue valve (200) is mounted on the Z-axis assembly (101) of the three-axis drive mechanism (10), characterized in that: a base (11) is mounted on the frame (9) and located below the Z-axis assembly (101) of the three-axis drive mechanism (10), a sleeve (2) is rotatably mounted on the upper surface of the top plate (1) of the base (11), the upper end of a rotating shaft (3) disposed in the base (11) is connected to the sleeve (2), and the rotating shaft (3) is driven by a drive mechanism (4). The rotating shaft (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 first vision component (12) is installed on the base (11). The first vision component (12) is used to photograph the lower end face of the glue valve (200). A second vision component (13) is installed on the Z-axis component (101) of the three-axis drive mechanism (10). The second vision component (13) is used to photograph the upper end face of the sleeve (2).

2. The automated replacement device of a spray valve according to claim 1, wherein: The first vision component (12) and the second vision component (13) each further include: a camera (141), a lens (142) mounted on the camera (141), and a light source (143) spaced apart on the side of the lens (142) opposite to the camera (141).

3. The automated replacement device of a spray valve according to claim 2, wherein: The lens (142) of the first visual component (12) is set upward, and the lens (142) of the second visual component (13) is set downward.

4. The automated replacement device of a spray valve according to claim 1 or 2, characterized in that: The first vision component (12) and the second vision component (13) are each mounted on one side of the glue valve (200) or the outside of the base (11) via a mounting bracket (15).

5. The automated replacement device for a spray valve of claim 1, wherein: 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).

6. The automated replacement device of a spray valve according to claim 1 or 5, characterized in that: The outer surface of the protrusion (5) and the inner wall of the groove (6) are both set to be arc-shaped.

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