A quick-change mechanism for a dispensing valve and a dispensing device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GKG PRECISION MACHINE
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-14
Smart Images
Figure CN224486513U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dispensing valve technology, and in particular to a quick-change mechanism for dispensing valves and a dispensing device. Background Technology
[0002] Dispensing valves are crucial components of high-speed dispensing machines, primarily responsible for precisely controlling the flow, shape, and position of the adhesive, directly impacting dispensing speed, accuracy, and stability. Depending on adhesive characteristics (such as viscosity and curing speed) and application scenarios, dispensing valves vary in type and working principle. Common dispensing valves include pressure valves, screw valves, and jet valves, among which piezoelectric jet valves are widely used, capable of dispensing at the 0.01 mg level with significant performance improvements.
[0003] However, current dispensing valves still have many shortcomings. For example, during long-term use, glue may remain in the dispensing channel of the dispensing valve, so the dispensing valve needs to be replaced regularly to meet cleaning requirements. However, current dispensing valves are usually fixed on the base of the dispensing device, and the disassembly process is time-consuming and laborious. There is still a lack of a solution in the existing technology that can quickly replace the dispensing valve, so it needs to be improved.
[0004] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content
[0005] This utility model provides a quick-change mechanism for a dispensing valve and a dispensing device to solve the problem of inconvenient replacement of dispensing valves in the prior art.
[0006] To achieve the above objectives, firstly, this utility model provides a quick-change mechanism for a dispensing valve, employing the following technical solution:
[0007] A quick-change mechanism for a dispensing valve, comprising:
[0008] The dispensing valve body has a dispensing channel;
[0009] The first quick-change disc is located on one side of the dispensing valve body;
[0010] And a second quick-change disc, which is detachably connected to the first quick-change disc and mounted on the base of the dispensing device.
[0011] Preferably, the dispensing valve body includes:
[0012] A dispensing valve seat, wherein the dispensing channel is located within the dispensing valve seat;
[0013] And a piezoelectric module, which is located on the dispensing valve seat and connected to the dispensing channel, is used to drive the glue to be dispensed in a metered manner.
[0014] Preferably, a limiting boss is provided on one side of the dispensing valve seat, and the limiting boss is used for positioning the dispensing valve seat.
[0015] Preferably, the bottom of the dispensing valve seat has a placement plane.
[0016] Preferably, it also includes a contouring fixture, which is fixedly connected to the dispensing valve body.
[0017] Preferably, the contouring clamp has a rod portion that resembles the outline of the rubber tube.
[0018] Preferably, the contour clamp has a positioning groove on its side, which is used for the gripping mechanism to insert and position itself.
[0019] Preferably, the dispensing valve body is provided with a plug-in module, the plug-in module is provided with a plug-in port communicating with the dispensing channel, and the outer periphery of the plug-in module is provided with a snap-fit protrusion.
[0020] Preferably, the bottom of the fastening boss is provided with a positioning notch.
[0021] Secondly, this utility model provides a dispensing device using the following technical solution:
[0022] A dispensing device, including the dispensing valve quick-change mechanism described above.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] The quick-change mechanism and dispensing device for dispensing valve provided by this utility model, with the first quick-change disc and the second quick-change disc detachably connected, enable the dispensing valve to be quickly disassembled and assembled with the dispensing device. The process is quick and convenient, and the problem of inconvenient dispensing valve replacement is solved.
[0025] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a structural schematic diagram of the quick-change mechanism for the dispensing valve provided in Embodiment 1 of this utility model;
[0028] Figure 2 This is a schematic diagram of the valve body material box mechanism provided in Embodiment 1 of this utility model;
[0029] Figure 3 yes Figure 2 Enlarged view of section A;
[0030] Figure 4 This is a schematic diagram of the gripping mechanism provided in Embodiment 1 of this utility model;
[0031] Figure 5 yes Figure 1 Enlarged view of section B.
[0032] Figure 6 This is a cross-sectional view of the leak-proof valve provided in Embodiment 1 of this utility model;
[0033] Figure label:
[0034] 1. Dispensing valve body; 11. Dispensing valve seat; 111. Placement plane; 112. Limiting boss; 12. Piezoelectric module; 13. Plug-in module; 131. Plug-in port; 132. Snap-in boss; 133. Positioning notch;
[0035] 2. First fast plate change; 3. Second fast plate change;
[0036] 4. Contouring fixture; 41. Positioning groove;
[0037] 5. Valve body material box mechanism; 51. Valve body baffle; 52. Placement platform;
[0038] 6. Grasping mechanism; 61. Positioning pin;
[0039] 7. Glue tube; 71. Cylinder body; 72. Leak-proof valve; 721. Elastic valve core; 722. Elastic buckle. Detailed Implementation
[0040] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0041] In the description of this utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component that is centrally positioned therein. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be a component that is centrally positioned therein.
[0042] Furthermore, terms such as "long," "short," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of this utility model.
[0043] The following is in conjunction with the appendix Figure 1-6 The technical solution of this utility model will be further illustrated through specific implementation methods.
[0044] Example 1:
[0045] Please refer to Figure 1 This utility model provides a quick-change mechanism for a dispensing valve, including a dispensing valve body 1, a first quick-change disc 2 and a second quick-change disc 3. The dispensing valve body 1 has a dispensing channel (not shown in the figure).
[0046] The first quick-change disc 2 is located on one side of the dispensing valve body 1. The second quick-change disc 3 is detachably connected to the first quick-change disc 2 and is installed on the base of the dispensing device. Typically, the first quick-change disc 2 is fixedly installed on the dispensing valve body 1, and the second quick-change disc 3 is fixedly installed on the base of the dispensing device. With the connection between the first quick-change disc 2 and the second quick-change disc 3, the dispensing valve body 1 can be quickly installed and removed from the base of the dispensing device.
[0047] It is understandable that the first quick-change disc 2 and the second quick-change disc 3 can also be called tool quick-change discs, gun change discs, quick-change tool discs, quick changers, quick changers, quick-change fixtures, quick-change jigs, etc.; typically, the first quick-change disc 2 includes a first disc body, a piston rod, and steel balls. The first disc body has a cavity, and the piston rod is movably disposed in the cavity, dividing the cavity into two chambers. At the same time, the first disc body also has an inlet and an outlet. The first disc body controls the medium to enter the two chambers through the inlet and outlet. For example, the first disc body can be connected to an air source, which is usually a compressor. By alternately introducing gas into the two chambers, the extension and retraction of the piston rod can be controlled. In another embodiment, the first disc body can also be connected to a hydraulic source, which is usually a hydraulic workstation. By alternately introducing oil into the two chambers, the extension and retraction of the piston rod can be controlled. When the piston rod extends, it can squeeze the steel balls outward.
[0048] Meanwhile, the second quick-change disc 3 includes a second disc body with a recessed snap-fit groove in the middle. The piston rod can extend into the snap-fit groove. When the steel ball is squeezed outward, the steel ball can snap into the snap-fit groove. At this time, the first quick-change disc 2 and the second quick-change disc 3 are quickly fixed, and the dispensing valve body 1 is installed. When it is necessary to loosen the two, it is only necessary to control the air source or hydraulic source to retract the piston rod, and the steel ball can be disengaged from the snap-fit groove, which can be quickly disassembled, realizing the quick disassembly and assembly of the dispensing valve body 1. Here, the specific model of the quick-change disc can be selected according to the actual needs. The above quick-change disc is only a common quick-change disc connection principle and does not constitute a restrictive interpretation of this application. When installing the dispensing valve body 1, as long as a quick-change disc structure that can be quickly disassembled and assembled is used, it should be included in the scope of interpretation of this application.
[0049] In addition, the dispensing valve body 1 provided in this application embodiment is a piezoelectric dispensing valve. A piezoelectric dispensing valve is a device that uses the piezoelectric effect to achieve precise control of adhesive. It drives the piezoelectric material to deform through an electrical signal, thereby adjusting the opening and closing of the valve. It is suitable for high-precision dispensing scenarios at the micron level. It mainly includes components such as a piezoelectric actuator, a precision valve body, and an adaptive control system. The piezoelectric actuator is a device that uses the inverse piezoelectric effect (lateral effect and longitudinal effect) of piezoelectric materials (such as polymer bicrystalline wafers) to convert electrical energy into mechanical energy or mechanical motion. The precision valve body is made of corrosion-resistant material and contains an adhesive flow channel and a valve needle. The valve needle is connected to the piezoelectric actuator. The pressure actuator is used to drive the valve needle to move, thereby quickly opening / closing the adhesive flow channel to achieve the dispensing action. The adaptive control system is used to adjust parameters in real time through a closed-loop feedback system to adapt to changes in adhesive viscosity.
[0050] Specifically, in this embodiment, the dispensing valve body 1 includes a dispensing valve seat 11 and a piezoelectric module 12. The dispensing channel is located inside the dispensing valve seat 11, and the dispensing valve seat 11 also has a valve needle (not shown in the figure). The piezoelectric module 12 is the piezoelectric actuator mentioned above. The piezoelectric module 12 is disposed in the dispensing valve seat 11 and is connected to the dispensing channel to drive the glue to be dispensed in a metered manner.
[0051] It is understood that the specific structure of the dispensing valve body 1 is existing technology and will not be described in detail here. In other embodiments, the dispensing valve body 1 may also adopt other models or other forms of dispensing valve body 1. No specific restrictions are made here. As long as a valve body capable of dispensing is used, it should be included in the interpretation scope of the dispensing valve body 1 in this solution.
[0052] By adopting the above method, the glue can be delivered accurately and quickly, and the dispensing effect is optimized and improved.
[0053] Furthermore, during the replacement of the dispensing valve body 1, the dispensing valve body 1 needs to undergo loading and unloading transfer. Based on this, referring to... Figure 2This embodiment also discloses a valve body material box mechanism 5, which is used to place the dispensing valve body 1 so as to facilitate the loading and unloading of the dispensing valve body 1.
[0054] To ensure that the dispensing valve body 1 can be stably placed on the valve body material box mechanism 5, combined with Figure 1 The bottom of the dispensing valve seat 11 has a placement plane 111, correspondingly, combined with Figure 2 A placement platform 52 is provided on the top of the valve body material box mechanism 5. At this time, the dispensing valve body 1 can be stably placed on the placement platform 52 through the placement plane 111.
[0055] Furthermore, referring to Figure 1 and Figure 3 A limiting boss 112 is provided on one side of the dispensing valve seat 11, which is used for positioning the dispensing valve seat 11. Specifically, a valve body baffle 51 is also provided on the valve body material box mechanism 5. The valve body baffle 51 has an inverted L-shaped outline. When the dispensing valve body 1 is placed on the valve body material box mechanism 5, the limiting boss 112 can be embedded in the valve body baffle 51 and form a perpendicular abutment with the valve body baffle 51 to limit the position. This can achieve the positioning effect of the dispensing valve seat 11 on the valve body material box mechanism 5, making it less likely for the dispensing valve body 1 to tip over, and further optimizing and improving the placement stability.
[0056] Furthermore, referring to Figure 4 The dispensing valve body 1 is usually moved and transferred between the dispensing device and the valve body material box mechanism 5 by the gripping mechanism 6. The gripping mechanism 6 mainly includes components such as a displacement module and a clamping cylinder. The clamping cylinder clamps the material. In another embodiment, a robotic arm can also be used directly. The specific structure of the gripping mechanism 6 is not limited here.
[0057] Combination Figure 1 In order to enable the dispensing valve body 1 to be gripped by the gripping mechanism 6, the quick-change mechanism for the dispensing valve provided in this application embodiment also includes a contour clamp 4. The contour clamp 4 is fixedly connected to the dispensing valve body 1. It can be understood that the shape of the contour clamp 4 is similar to that of the clamping part of the gripping mechanism 6. This enables the gripping mechanism 6 to grip the dispensing valve body 1 firmly, thereby making it less likely for the dispensing valve body 1 to loosen or fall off during the transfer process, and optimizing and improving the stability during the transfer process.
[0058] Furthermore, the contouring clamp 4 has a rod portion that resembles the outline of the glue cartridge 7. It is understandable that in some dispensing devices, the gripping mechanism 6 is also used to transfer the glue cartridge 7, in conjunction with... Figure 4The glue cylinder 7 can be understood as a cylindrical element used to store glue. In this case, the contour jig 4 is provided with a rod part that is similar to the contour of the glue cylinder 7, which can help the gripping mechanism 6 to grip both the contour jig 4 and the glue cylinder 7. On the one hand, it can reduce the complexity of the equipment, reduce the cost of the equipment, and improve the structural compactness. On the other hand, it can also facilitate the gripping mechanism 6 to grip the glue cylinder 7 and the dispensing valve body 1 at the same time, which is conducive to improving the overall transfer efficiency of the gripping mechanism 6.
[0059] Furthermore, referring to Figure 4 and Figure 5 Because the dispensing valve body 1 is relatively heavy, it is difficult to grip during the gripping process. Therefore, the side of the contour jig 4 is provided with a positioning groove 41. The positioning groove 41 is used for the gripping mechanism 6 to insert and position. Specifically, a positioning pin 61 can be set at the clamping part of the gripping mechanism 6. During the gripping process of the dispensing valve body 1, by inserting the positioning pin 61 into the positioning groove 41, the clamping stability of the dispensing valve body 1 can be effectively improved, so that the dispensing valve body 1 is not easy to loosen from the gripping mechanism 6 due to its heavy weight during the movement.
[0060] Furthermore, continue to refer to Figure 4 and Figure 5 In order to enable the dispensing valve body 1 to be quickly assembled with the glue cartridge 7, the dispensing valve body 1 is provided with a plug-in module 13. The plug-in module 13 is provided with a plug-in port 131 that communicates with the glue dispensing channel, and the outer periphery of the plug-in module 13 is provided with a snap-fit boss 132.
[0061] Based on this, this embodiment provides a glue cartridge 7, which includes a cartridge body 71 and a leak-proof valve 72. The leak-proof valve 72 is fixedly installed at the bottom end of the cartridge body 71. The cartridge body 71 is used to store glue, and the leak-proof valve 72 is used to provide a leak-proof effect for the glue. In combination with... Figure 6 The leak-proof valve 72 has an elastic valve core 721 inside. Only when the glue supply pressure is applied to the top of the cylinder 71 will the elastic valve core 721 be pushed open to realize the glue flow action. When the cylinder 71 does not have glue supply pressure under normal conditions, the elastic valve core 721 closes the bottom of the cylinder 71 to prevent glue leakage. Furthermore, elastic buckles 722 are provided on both sides of the leak-proof valve 72.
[0062] The insertion port 131 is used for inserting and removing the leak-proof valve 72, while the snap-fit boss 132 is used for the flexible snap-fit 722 to be movably snapped in place. By inserting the insertion port 131 into the insertion port 132 and snapping it onto the snap-fit boss 132 with the flexible snap-fit 722, the rubber sleeve 7 can be installed quickly. Correspondingly, when it is necessary to disassemble the rubber sleeve 7, simply press the flexible snap-fit 722 to release it from the snap-fit boss 132, and then simply pull the leak-proof valve 72 out of the insertion port 131 to achieve disassembly. The process is convenient and quick.
[0063] In summary, by providing a plug-in port 131 and a snap-fit boss 132 on the plug-in module 13, the quick assembly and disassembly of the glue tube 7 can be achieved, and the structural stability of the glue tube 7 during installation can also be improved.
[0064] Furthermore, referring to Figure 5 The bottom of the snap-fit boss 132 is provided with a positioning notch 133, which allows the elastic buckle 722 to snap on. When the elastic buckle 722 is snapped on, it is not easy to shake or shift, and the snap-fit stability of the elastic buckle 722 is further optimized and improved.
[0065] The quick-change mechanism for the dispensing valve provided in this embodiment has the following beneficial effects:
[0066] 1. With the cooperation of the first quick-change disc 2 and the second quick-change disc 3, the dispensing valve body 1 can be quickly disassembled and replaced, thus solving the problem of inconvenient replacement of the dispensing valve body 1.
[0067] 2. The placement plane 111 allows the dispensing valve body 1 to be placed stably on the valve body material box mechanism 5. The limiting boss 112 improves the placement stability of the dispensing valve body 1. The contour clamp 4 enables the dispensing valve body 1 to be stably gripped. In summary, the dispensing valve body 1 can be picked up and transferred efficiently and stably.
[0068] 3. The dispensing valve body 1 can be quickly disassembled and assembled with the glue cartridge 7, and can provide good connection stability for the glue cartridge 7, making the glue supply action more reliable.
[0069] Example 2:
[0070] Based on Embodiment 1, features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here. This embodiment discloses a dispensing device, including the quick-change dispensing valve mechanism in Embodiment 1.
[0071] Based on the above settings, a dispensing device that can quickly disassemble the dispensing valve body 1 is obtained.
[0072] Therefore, the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A quick-change mechanism for a dispensing valve, characterized in that, include: The dispensing valve body (1) has a dispensing channel; The first quick-change disc (2) is located on one side of the dispensing valve body (1); And a second quick-change disc (3), which is detachably connected to the first quick-change disc (2) and installed on the base of the dispensing device.
2. The quick-change mechanism for the dispensing valve according to claim 1, characterized in that, The dispensing valve body (1) includes: Dispensing valve seat (11), the dispensing channel is located inside the dispensing valve seat (11); And a piezoelectric module (12) is provided on the dispensing valve seat (11) and connected to the dispensing channel to drive the glue to be dispensed in a metered manner.
3. The quick-change mechanism for the dispensing valve according to claim 2, characterized in that, The dispensing valve seat (11) has a limiting boss (112) on one side, which is used for positioning the dispensing valve seat (11).
4. The quick-change mechanism for the dispensing valve according to claim 2, characterized in that, The bottom of the dispensing valve seat (11) has a placement plane (111).
5. The quick-change mechanism for the dispensing valve according to claim 1, characterized in that, It also includes a contouring fixture (4), which is fixedly connected to the dispensing valve body (1).
6. The quick-change mechanism for the dispensing valve according to claim 5, characterized in that, The contouring clamp (4) has a rod portion that is similar in outline to the rubber tube (7).
7. The quick-change mechanism for the dispensing valve according to claim 5, characterized in that, The contour clamp (4) has a positioning groove (41) on its side, which is used for the gripping mechanism (6) to insert and position itself.
8. The quick-change mechanism for the dispensing valve according to claim 1, characterized in that, The dispensing valve body (1) is provided with a plug-in module (13), the plug-in module (13) is provided with a plug-in port (131) communicating with the dispensing channel, and the outer periphery of the plug-in module (13) is provided with a snap-fit boss (132).
9. The quick-change mechanism for the dispensing valve according to claim 8, characterized in that, The bottom of the fastening boss (132) is provided with a positioning notch (133).
10. A dispensing device, characterized in that, The quick-change mechanism for the dispensing valve includes any one of claims 1-9.