Dispensing mechanism and dispensing machine

Abstract

This utility model discloses a dispensing mechanism and dispensing machine. A vacuum adsorption component is provided on the outer periphery of the nozzle. The vacuum adsorption component is connected to the side of the valve body where the nozzle is located. The vacuum adsorption component has a first clearance hole for the nozzle to pass through. The vacuum adsorption component has a vacuum chamber and suction holes arranged around the nozzle. The suction holes are connected to the vacuum chamber, which is used to connect to an air source. In this way, during the dispensing process using the dispensing mechanism, if the adhesive sprayed from the nozzle produces scattered dots that drift into the air, the air source can create a negative pressure area around the nozzle through the vacuum chamber and suction holes. The pressure difference is used to draw away the scattered dots drifting into the air, preventing them from falling onto the surface of the product to be dispensed or being dispensed, keeping the product clean, preventing product contamination, and improving product yield.

Description

Technical Field

[0001] This application relates to the field of dispensing technology, and in particular to a dispensing mechanism and dispensing machine. Background Technology

[0002] During the dispensing process, due to factors such as air fluctuations, viscous resistance, and surface tension, a small amount of adhesive may detach from the jet, forming adhesive dots (also known as specks) that drift into the air. These specks typically deviate from the target area and fall onto the surface of the product under gravity. Since these specks are difficult to remove effectively, they cause product contamination and reduce product yield. Utility Model Content

[0003] This application discloses a dispensing mechanism and a dispensing machine. The dispensing mechanism can adsorb and remove the scattered dots that separate from the glue jet and drift into the air during the dispensing process, so as to keep the product to be dispensed clean.

[0004] In a first aspect, this application discloses a dispensing mechanism, comprising:

[0005] A valve body for containing adhesive and applying pressure to the adhesive;

[0006] A nozzle, connected to the valve body, is used to spray out the adhesive liquid;

[0007] A vacuum adsorption component is connected to the side of the valve body where the nozzle is located. The vacuum adsorption component has a first clearance hole through which the nozzle passes. The vacuum adsorption component has a vacuum chamber and suction holes arranged around the outer periphery of the nozzle. The suction holes are connected to the vacuum chamber. The vacuum chamber is used to connect to an air source. The suction holes are configured to draw out the scattered points of the adhesive liquid dispersed in the air.

[0008] The dispensing mechanism of this application includes a vacuum adsorption component on the outer periphery of the nozzle. This component is connected to the side of the valve body where the nozzle is located, and has a first clearance hole for the nozzle to pass through. The vacuum adsorption component includes a vacuum chamber and suction holes arranged around the nozzle. The suction holes communicate with the vacuum chamber, which is connected to an air source. Thus, during dispensing, if the adhesive sprayed from the nozzle produces scattered droplets that drift into the air, the connection between the vacuum adsorption component and the air source creates a negative pressure area around the nozzle using the vacuum chamber and suction holes. This pressure difference draws away the scattered droplets, preventing them from falling onto the surface of the product to be dispensed or being dispensed, keeping the product clean, preventing product contamination, and improving product yield.

[0009] In one possible implementation, the vacuum adsorption element includes an adsorption surface facing away from the valve body and an inner wall surface surrounding the nozzle and forming the first clearance hole, the first clearance hole penetrating the adsorption surface.

[0010] The adsorption section includes an adsorption surface facing away from the valve body and an inner wall surface arranged around the nozzle and forming a first clearance hole. The adsorption surface is connected to the inner wall surface. The first clearance hole penetrates the adsorption surface, so that the nozzle can pass through the adsorption surface after passing through the first clearance hole. The adhesive sprayed by the nozzle will not be interfered with by the adsorption surface, thereby ensuring that the adhesive is accurately sprayed onto the product to be glued.

[0011] In one possible implementation, the suction hole includes a first sub-hole and a second sub-hole, the first sub-hole being disposed on the adsorption surface and the second sub-hole being disposed on the inner wall surface, and both the first sub-hole and the second sub-hole being in communication with the vacuum cavity.

[0012] The suction port includes a first sub-port and a second sub-port, both of which are connected to the vacuum chamber. The first sub-port is located on the adsorption surface and arranged around the nozzle, while the second sub-port is located on the inner wall surface and also arranged around the nozzle. This arrangement allows for the creation of negative pressure zones around the nozzle at different locations during dispensing, when some of the adhesive droplets disperse into the air. These negative pressure zones are then drawn into the vacuum chamber from different angles, preventing the droplets from falling onto the surface of the product below the nozzle. This improves the adsorption effect on the droplets and prevents product contamination.

[0013] In one possible implementation, there is at least one first sub-hole and at least one second sub-hole, both of which are arranged around the nozzle.

[0014] When there are multiple first and second sub-holes, they are arranged at intervals around the nozzle. This creates multiple negative pressure zones around the nozzle, improving the adsorption effect on scattered droplets. Furthermore, because the negative pressure zones are arranged at intervals around the nozzle, it avoids asymmetrical or uneven effects on the adhesive droplets, preventing dispensing position deviations. When there is only one first and second sub-hole, it extends around the nozzle. This creates a continuous negative pressure zone around the nozzle, adsorbing scattered droplets within this continuous area, improving the adsorption effect, and making the negative pressure zone more evenly distributed around the nozzle. This reduces the deviation in the influence of negative pressure zones in different directions on the adhesive droplets, maintaining the accuracy of the dispensing position.

[0015] In one possible embodiment, the vacuum adsorption component further includes an outer wall surface arranged around the inner wall surface and a connecting surface disposed opposite to the adsorption surface. The outer wall surface is connected between the adsorption surface and the connecting surface. The vacuum adsorption component has a plurality of interconnected channels. Some of the channels penetrate the adsorption surface and the connecting surface, and some of the channels penetrate the inner wall surface and the outer wall surface. The plurality of channels form the vacuum cavity.

[0016] By creating multiple interconnected channels on the vacuum adsorption component to form a vacuum chamber, with some channels penetrating the adsorption surface and connecting surface, and others penetrating the inner and outer walls, the vacuum chamber can be formed directly by creating channels on the vacuum adsorption component, reducing the manufacturing difficulty. Simultaneously, because each surface of the vacuum adsorption component also has multiple openings, during the dispensing process, the air source can utilize these openings to create a large negative pressure area around the product to be dispensed. This improves the adsorption effect of the scattered particles and also adsorbs suspended dust and other impurities in the air, placing the product in a cleaner environment and preventing contamination from impurities other than the scattered particles.

[0017] In one possible implementation, the dispensing mechanism further includes a heating element, which is at least partially located in the first clearance hole. The heating element is connected to the side of the valve body where the nozzle is located. The vacuum suction element is connected to the side of the heating element away from the valve body. The heating element has a second clearance hole corresponding to the first clearance hole. The nozzle passes through the first clearance hole and the second clearance hole in sequence. The heating element is used to heat the nozzle.

[0018] Because adhesives can become viscous or even completely solidify over time, this can cause nozzle clogging. Manual removal of the adhesive is difficult and increases labor costs, hindering subsequent use of the dispensing mechanism. Therefore, the dispensing mechanism also includes a heating element connected to the side of the valve body where the nozzle is located, and at least partially situated within a first clearance hole. The heating element has a second clearance hole corresponding to the first clearance hole. The nozzle passes through the first and third clearance holes sequentially, and the heating element heats the nozzle. Thus, when dispensing is required and the adhesive in the nozzle has solidified, the heating element can soften and even melt the adhesive inside the nozzle, giving it sufficient fluidity for precise dispensing.

[0019] In one possible implementation, the vacuum adsorption element and the heating element are integrally configured as a single component.

[0020] By integrating the vacuum adsorption component and the heating component into a single unit, the number of parts in the dispensing mechanism can be reduced, simplifying the assembly process and lowering the assembly difficulty. Furthermore, since the vacuum adsorption component and the heating component are integrated, the vacuum adsorption component is also heated when the nozzle is heated by the heating component. This keeps the adhesive particles entering the vacuum chamber softened or even kept in a liquid state. After dispensing, this facilitates the removal of adhesive from the inside of the vacuum adsorption component, preventing the accumulation of adhesive particles inside and thus avoiding blockage of the air duct.

[0021] In one possible implementation, the dispensing mechanism further includes a threaded sleeve, which is at least partially located in the first clearance hole. The threaded sleeve is connected to the side of the valve body where the nozzle is located. The nozzle is connected to the threaded sleeve to connect with the valve body. The threaded sleeve has a third clearance hole communicating with the first clearance hole. The nozzle passes through the third clearance hole and the first clearance hole in sequence. The vacuum adsorption component and the threaded sleeve are configured as an integral component.

[0022] The dispensing mechanism also includes a threaded sleeve for connecting the valve body and the nozzle. The threaded sleeve is at least partially located within the first clearance hole and is integrally connected to the vacuum suction component. The nozzle passes through the first and third clearance holes sequentially. This reduces the number of components in the dispensing mechanism, simplifies the assembly process, and lowers the assembly difficulty. Simultaneously, because the threaded sleeve has a third clearance hole, and the nozzle passes through both the first and third clearance holes, the position of the suction hole can be set with the threaded sleeve as a reference. This allows the suction hole to be symmetrically arranged relative to the nozzle, reducing or avoiding offset of the suction hole relative to the nozzle, thereby reducing the impact of the negative pressure area formed by the suction hole on the adhesive droplets.

[0023] In one possible implementation, the dispensing mechanism further includes a reservoir and an inlet section. The inlet section is connected to and connected to the nozzle on the side of the valve body where the nozzle is located. The reservoir is connected to the inlet section and is spaced apart from the valve body. The reservoir delivers adhesive to the valve body through the inlet section. The vacuum adsorption component and the inlet section are configured as an integral component.

[0024] The dispensing mechanism also includes a reservoir and an inlet section. The inlet section is connected to and connected to the nozzle on the side of the valve body where the nozzle is located. The reservoir is connected to the inlet section and is spaced apart from the valve body. The reservoir delivers adhesive to the valve body through the inlet section. A vacuum suction component is connected to the side of the inlet section away from the valve body, and the vacuum suction component and the inlet section are integrated as a single unit. This reduces the number of parts in the dispensing mechanism, simplifies the assembly process, and lowers the assembly difficulty.

[0025] In one possible embodiment, the vacuum adsorption component further includes an adsorption section and an air inlet section. The adsorption section is connected to the side of the valve body where the nozzle is located, and is provided with the first clearance hole, the vacuum chamber, and the suction hole. The air inlet section is connected to the side of the adsorption section facing the valve body, and has an air passage communicating with the vacuum chamber. The air inlet section is used to connect to an air source.

[0026] The vacuum adsorption component includes an adsorption section and an air inlet section. The adsorption section is connected to the valve body on the side where the nozzle is located and is provided with the aforementioned first clearance hole, vacuum chamber, and suction hole. The air inlet section is connected to the air inlet section on the side of the adsorption section facing the valve body. The air inlet section has an air passage communicating with the vacuum chamber and is used to connect to an air source. Because the air inlet section is located on the side of the adsorption section facing the valve body, interference between the air inlet section and the pipe used to connect the air inlet section and the negative pressure source and the product located below the nozzle can be prevented during the dispensing process, ensuring smooth dispensing.

[0027] Secondly, this application discloses a dispensing machine, including the dispensing mechanism of any of the above.

[0028] Compared with the prior art, this application has at least the following beneficial effects:

[0029] The dispensing mechanism of this application includes a vacuum adsorption component on the outer periphery of the nozzle. This component is connected to the side of the valve body where the nozzle is located, and has a first clearance hole for the nozzle to pass through. The vacuum adsorption component includes a vacuum chamber and suction holes arranged around the nozzle. The suction holes communicate with the vacuum chamber, which in turn communicates with an air source. Thus, during dispensing, if the adhesive sprayed from the nozzle produces scattered droplets that drift into the air, the connection between the vacuum adsorption component and the air source creates a negative pressure area around the nozzle using the vacuum chamber and suction holes. This pressure difference draws away the scattered droplets, preventing them from falling onto the surface of the product to be dispensed or being dispensed, keeping the product clean and preventing contamination, thereby improving product yield. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in this application, the drawings used in the application 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 from these drawings without creative effort.

[0031] Figure 1 This is a front view schematic diagram of the dispensing mechanism according to an embodiment of this application;

[0032] Figure 2 yes Figure 1The diagram shown is an exploded view of the dispensing mechanism.

[0033] Figure 3 This is an assembly diagram of the vacuum adsorption component and the screw sleeve in an embodiment of this application;

[0034] Figure 4 yes Figure 3 Enlarged view of region A in the middle;

[0035] Figure 5 This is a schematic diagram of a needle-type jet dispensing structure.

[0036] Figure 6 This is a schematic diagram of a vacuum adsorption component in one embodiment of this application;

[0037] Figure 7 yes Figure 6 A top view of the vacuum adsorption component shown;

[0038] Figure 8 yes Figure 7 A schematic cross-sectional view of the vacuum adsorption component along the B-B' direction is shown.

[0039] Figure 9 This is another structural schematic diagram of the vacuum adsorption component in the embodiments of this application;

[0040] Figure 10 This is a schematic diagram of the air inlet of the vacuum adsorption component in the embodiments of this application;

[0041] Figure 11 This is a schematic diagram of the dispensing machine in the embodiments of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Dispensing mechanism, 11. Valve body, 111. Impact pin, 112. Return spring, 12. Nozzle, 13. Vacuum adsorption component, 13a. First clearance hole, 13b. Vacuum chamber, 13c. Suction hole, 13c1. First sub-hole, 13c2. Second sub-hole, 131. Adsorption part, 131a. Channel, 1311. Adsorption surface, 1312. Inner wall surface, 1313. Outer wall surface, 1314. Connecting surface, 132. Connecting part, 133. Air inlet, 133a. Air passage, 14. Liquid reservoir, 15. Liquid inlet, 16. Heating component, 17. Screw sleeve, 171. Outer wall surface of screw sleeve; 2. Dispensing machine base, 21. Support platform, 22. Automatic feeding device, 23. Automatic unloading device. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] In this application, the terms "upper," "inner," "outer," "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0046] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0047] Furthermore, the terms "provided with" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0048] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0049] In the manufacturing process of many electronic devices, adhesive dispensing is required to bond and fix the product to other components within the device. Currently, many dispensing mechanisms can achieve precise dispensing. However, when the nozzle of the dispensing mechanism sprays adhesive droplets, some adhesive may separate from the droplets, forming adhesive dots. These dots become scattered spots and can fall onto the product surface, causing contamination and affecting product performance. For example, in the manufacturing process of camera modules, adhesive dispensing is required to fix the lens placed inside the lens barrel. If scattered spots fall on the lens surface, they will obstruct the light-transmitting surface of the lens, resulting in a reduction in the image quality of the camera module.

[0050] Currently, the main procedure is to inspect the glued products after dispensing to determine if there are any scattered dots on the surface. If scattered dots are found, they are usually removed manually. In a few cases, adhesive bonding is used to remove the scattered dots by bonding the product surface. However, this method of removing adhesive is inefficient, and for products like optical lenses that require high surface flatness and cleanliness, this method may also scratch the product surface or introduce new contamination.

[0051] To address the aforementioned technical problems, this application provides a dispensing mechanism. A vacuum adsorption component is disposed around the nozzle, connected to the side of the valve body where the nozzle is located. The vacuum adsorption component has a first clearance hole for the nozzle to pass through. The vacuum adsorption component includes a vacuum chamber and suction holes arranged around the nozzle. The suction holes communicate with the vacuum chamber, which is used to communicate with an air source. Thus, during dispensing using this mechanism, if the adhesive sprayed from the nozzle produces scattered droplets that drift into the air, the air source can create a negative pressure area around the nozzle through the vacuum chamber and suction holes. This pressure difference draws away the scattered droplets, preventing them from falling onto the surface of the product to be dispensed or being dispensed, keeping the product clean, preventing product contamination, and improving product yield.

[0052] Please refer to the following: Figures 1 to 5 ,in, Figure 1 This is a front view schematic diagram of the dispensing mechanism according to an embodiment of this application. Figure 2 yes Figure 1 The diagram shown is an exploded view of the dispensing mechanism. Figure 3 This is an assembly diagram of the vacuum adsorption component and the screw sleeve in an embodiment of this application. Figure 4 yes Figure 3 Enlarged diagram of region A in the middle. Figure 5 This is a schematic diagram of a needle-type jet dispensing structure.

[0053] In a first aspect, embodiments of this application provide a dispensing mechanism that can remove scattered dots floating in the air by using a vacuum adsorption component on the dispensing mechanism before the dots fall onto the product surface. This can prevent the dots from falling onto the product surface and contaminating the product, and can also avoid product damage caused by removing the dots from the product surface after dispensing is completed.

[0054] In some embodiments, the dispensing mechanism 1 includes a valve body 11 and a nozzle 12 connected to the valve body 11. The valve body 11 is capable of containing adhesive liquid and applying pressure to the adhesive liquid contained within itself during dispensing, so that the adhesive liquid forms adhesive droplets through the nozzle 12 and is ejected from the nozzle to dispense adhesive onto the product to be dispensed.

[0055] In some embodiments, the dispensing mechanism 1 further includes a vacuum adsorption component 13, which is connected to the side of the valve body 11 where the nozzle 12 is located. The vacuum adsorption component 13 has a first clearance hole 13a through which the nozzle 12 passes. The vacuum adsorption component 13 has a vacuum chamber 13b and a suction hole 13c arranged around the outer periphery of the nozzle 12, which communicates with the vacuum chamber 13b. The vacuum chamber 13b is used to connect to a gas source (not shown), and the suction hole 13c is used to remove the scattered adhesive particles dispersed in the air by using negative pressure during the dispensing process. It is understood that the gas source can be a vacuum pump, a fan, or other device that can create negative pressure in the vacuum chamber 13b by absorbing gas; this application does not specifically limit this.

[0056] With this configuration, during the dispensing process using the dispensing mechanism 1, if the adhesive sprayed from the nozzle 12 produces scattered dots that drift into the air, the air source can create a negative pressure area around the nozzle 12 through the vacuum chamber 13b and the suction hole 13c. The pressure difference is used to draw away the scattered dots that drift into the air, preventing them from falling onto the surface of the product to be dispensed or being dispensed, keeping the product clean, preventing product contamination, and improving product yield.

[0057] In some embodiments, a throttling valve (not shown) can be provided between the vacuum adsorption element 13 and the gas source. In this way, the negative pressure at the suction port 13c can be adjusted by means of the throttling valve to adapt to different adsorption requirements.

[0058] In some embodiments, the valve body 11 can be a piezoelectric valve, using a needle-type jet dispensing structure for dispensing. Needle-type jet dispensing offers advantages such as high efficiency and consistent dispensing volume. Under normal conditions, the needle 111 in the needle-type jet dispensing structure is at its lowest point under the action of the piezoelectric ceramic (not shown). At this time, the needle 111 is tightly fitted with the nozzle 12, blocking the flow channel constructed by the nozzle 12, preventing the adhesive in the valve body 11 from leaking out of the nozzle 12. When dispensing is required, the piezoelectric ceramic is de-energized, and the needle 111 can move away from the nozzle 12 under the action of the return spring 112, separating the needle 111 from the nozzle 12. At this time, the adhesive can enter the nozzle 12. Then, a high voltage level is applied to the piezoelectric ceramic, which applies force to the striker 111, causing the striker 111 to move rapidly toward the nozzle 12 and strike the nozzle 12. This causes the adhesive between the striker 111 and the nozzle 12 to generate instantaneous high voltage. Under the action of instantaneous high voltage, the adhesive is ejected from the nozzle 12 to form droplets.

[0059] In some embodiments, the nozzle 12 extends from the first clearance hole 13a to the outside of the vacuum adsorption member 13, that is, the nozzle 12 protrudes from the surface of the vacuum adsorption member 13 facing the product to be adsorbed during dispensing. In this way, interference between the vacuum adsorption member 13 and the product to be adsorbed can be avoided during the dispensing process.

[0060] See you again Figures 1 to 4 In some embodiments, the dispensing mechanism 1 further includes a reservoir 14, which is connected to the side of the valve body 11 where the nozzle 12 is located, and is situated on the side where the nozzle 12 faces the valve body 11. The reservoir 14 is used to store adhesive. That is, during dispensing, the reservoir 14 can deliver the stored adhesive into the valve body 11, and the valve body 11 then applies pressure to the adhesive so that the adhesive is sprayed onto the product to be dispensed through the nozzle 12.

[0061] In some embodiments, the dispensing mechanism 1 further includes a liquid inlet 15, which is connected to the side of the valve body 11 where the nozzle 12 is located. A liquid reservoir 14 is connected to the liquid inlet 15, that is, the liquid reservoir 14 is connected to the valve body 11 via the liquid inlet 15, and the liquid reservoir 14 and the valve body 11 are arranged at a distance. The liquid reservoir 14 delivers adhesive to the nozzle 12 through the liquid inlet 15. A vacuum suction member 13 is connected to the side of the liquid inlet 15 away from the valve body 11, and the vacuum suction member 13 and the liquid inlet 15 are configured as an integral component. By making the vacuum suction member 13 and the liquid inlet 15 an integral component, the number of parts of the dispensing mechanism 1 can be reduced, the assembly process of the dispensing mechanism 1 can be simplified, and the assembly difficulty of the dispensing mechanism 1 can be reduced.

[0062] In some embodiments, the liquid inlet 15 can be an adjustable liquid inlet, that is, the liquid inlet 15 can adjust the flow rate of the adhesive through the liquid inlet 15. Through the adjustable liquid inlet, the amount of adhesive delivered from the reservoir 14 to the valve body 11 can be adjusted, so as to adapt to different dispensing volume requirements.

[0063] See you again Figures 1 to 4Because the adhesive becomes viscous or even completely solidifies over time, it can cause the nozzle 12 to become clogged. Manual removal of the adhesive is difficult and increases labor costs, hindering subsequent use of the dispensing mechanism. In some embodiments, the dispensing mechanism 1 further includes a heating element 16 connected to the side of the valve body 11 where the nozzle 12 is located. A vacuum suction element 13 is connected to the side of the heating element 16 away from the valve body 11. The heating element 16 has a second clearance hole (not shown) corresponding to the first clearance hole 13a. The nozzle 12 passes through the second clearance hole, and the heating element 16 heats the nozzle 12. Thus, when dispensing is required using the dispensing mechanism 1 and the adhesive in the nozzle 12 has solidified, the heating element 16 can heat the nozzle 12, softening and even melting the adhesive inside, giving it sufficient fluidity for precise dispensing through the nozzle 12.

[0064] It is understood that the heating element 16 can be electrically connected to a power source (not shown) to utilize electrical energy for heating. For example, the heating element 16 can be a heating wire, a thermocouple, or a heating block having a heating wire or thermocouple, etc.

[0065] In some embodiments, the vacuum adsorption component 13 and the heating component 16 are configured as an integral component. This reduces the number of parts in the dispensing mechanism 1, simplifies the assembly process, and lowers the assembly difficulty. Simultaneously, since the vacuum adsorption component 13 and the heating component 16 are an integral component, when the nozzle 12 is heated by the heating component 16, the vacuum adsorption component 13 is also heated. This allows the specks entering the vacuum chamber 13b to remain softened or even liquid, facilitating the removal of adhesive from the interior of the vacuum adsorption component 13 after dispensing, and preventing the accumulation of specks inside the vacuum adsorption component 13 that could clog the air duct.

[0066] See you again Figures 1 to 4In some embodiments, the dispensing mechanism 1 further includes a threaded sleeve 17, which is connected to the side of the valve body 11 where the nozzle 12 is located. The nozzle 12 is connected to the threaded sleeve 17 to connect with the valve body 11. The threaded sleeve 17 has a third clearance hole (not shown) communicating with the first clearance hole 13a. The threaded sleeve 17 is at least partially located in the first clearance hole 13a. The nozzle 12 passes through the first clearance hole 13a and the third clearance hole in sequence. The vacuum suction member 13 is integrally connected to the threaded sleeve 17, so that the vacuum suction member 13 and the threaded sleeve 17 are set as a single component. In this way, the number of parts of the dispensing mechanism 1 can be reduced, the assembly process of the dispensing mechanism 1 can be simplified, and the assembly difficulty of the dispensing mechanism 1 can be reduced. Meanwhile, since the threaded sleeve 17 has a third clearance hole, the nozzle 12 passes through the first clearance hole 13a and the third clearance hole. In this way, the position of the suction hole 13c can be set with the threaded sleeve 17 as a reference, so that the suction hole 13c can be arranged symmetrically with respect to the nozzle 12, reducing or avoiding the offset of the suction hole 13c relative to the nozzle 12, thereby reducing the impact of the negative pressure area formed by the suction hole 13c on the adhesive droplets.

[0067] It is understandable that when the dispensing mechanism 1 includes a liquid inlet section 15, the vacuum adsorption member 13 can be integrally formed with the liquid inlet section 15. In this case, the integral member formed by the vacuum adsorption member 13 and the liquid inlet section 15 can be connected to the valve body 11 through the liquid inlet section 15. When the dispensing mechanism 1 includes a heating member 16, the vacuum adsorption member 13 can be integrally formed with the heating member 16. In this case, the integral member formed by the vacuum adsorption member 13 and the heating member 16 can be connected to the valve body 11 through the heating member 16. When the dispensing mechanism 1 includes a screw sleeve 17, the vacuum adsorption member 13 can be integrally formed with the screw sleeve 17. In this case, the integral member formed by the vacuum adsorption member 13 and the screw sleeve 17 can be connected to the valve body 11 through the vacuum adsorption member 13. When the dispensing mechanism 1 simultaneously has a liquid inlet section 15, a heating member 16, and a screw sleeve 17, the vacuum adsorption member 13 can be integrally formed with any one of the liquid inlet section 15, the heating member 16, and the screw sleeve 17. Alternatively, the vacuum adsorption component 13 can be set independently from the liquid inlet 15, the heating component 16, and the screw sleeve 17.

[0068] It should be noted that when the threaded sleeve 17 is provided alone, there may be a gap between the outer wall surface 171 of the threaded sleeve and the hole wall of the first clearance hole 13a, or the outer wall surface 171 of the threaded sleeve may fit against the hole wall of the first clearance hole 13a.

[0069] Please see also Figures 6 to 9 , Figure 6 This is a schematic diagram of a vacuum adsorption component in one embodiment of this application. Figure 7 yes Figure 6 The diagram shown is a top view of the vacuum adsorption component. Figure 8 yes Figure 7The diagram shows a cross-sectional view of the vacuum adsorption component along the B-B' direction. Figure 9 This is another structural schematic diagram of the vacuum adsorption component in the embodiments of this application.

[0070] In some embodiments, the vacuum adsorption member 13 includes an adsorption portion 131, which is connected to the side of the valve body 11 where the nozzle 12 is located. The adsorption portion 131 is provided with the aforementioned first clearance hole 13a, vacuum chamber 13b, and suction hole 13c. It is understood that the nozzle 12 protrudes from the adsorption portion 131 and faces the surface of the product to be adsorbed during dispensing.

[0071] Optionally, the adsorption part 131 can be detachably connected to the valve body 11 by means of snap-fit, plug-in, screw-in, etc. In this way, when at least one of the valve body 11 or the vacuum adsorption component 13 fails, the adsorption part 131 can be disassembled to repair the faulty component, which facilitates the later maintenance of the dispensing mechanism 1. Preferably, the adsorption part 131 can be connected to the valve body 11 by snap-fit ​​or plug-in, which can improve the assembly efficiency between the valve body 11 and the adsorption part 131.

[0072] In some embodiments, the adsorption part 131 includes an adsorption surface 1311 and an inner wall surface 1312 connected to each other. During dispensing, the surface of the adsorption part 131 facing the product to be dispensed is the adsorption surface 1311, the first clearance hole 13a penetrates the adsorption surface 1311, and the wall surface of the adsorption part 131 surrounding the first clearance hole 13a is the inner wall surface 1312. In this way, the nozzle 12 can pass through the adsorption surface 1311 after passing through the first clearance hole 13a, and the adhesive sprayed by the nozzle 12 will not be interfered with by the adsorption surface 1311, thereby ensuring that the adhesive is accurately sprayed onto the product to be dispensed.

[0073] For example, the adsorption section 131 can be a circular plate or a square plate, and the vacuum cavity 13b described above is constructed inside the adsorption section 131. The surface of the adsorption section 131 that faces away from the valve body 11 is the adsorption surface 1311, and the inner wall surface 1312 can be arranged around the center of the adsorption section 131.

[0074] In some embodiments, the suction hole 13c includes a first sub-hole 13c1 and a second sub-hole 13c2. The first sub-hole 13c1 is disposed on the adsorption surface 1311 and arranged around the nozzle 12, and the second sub-hole 13c2 is disposed on the inner wall surface 1312 and arranged around the nozzle 12. Both the first sub-hole 13c1 and the second sub-hole 13c2 are connected to the vacuum chamber 13b. This configuration allows for the formation of negative pressure zones around the nozzle 12 at different locations during dispensing, when some of the adhesive droplets disperse into the air, through the first sub-hole 13c1 and the second sub-hole 13c2. This draws the dispersed droplets into the vacuum chamber 13b from different directions, preventing them from falling onto the surface of the product below the nozzle 12, thus improving the adsorption effect and preventing product contamination by the droplets.

[0075] Of course, in some embodiments, the adsorption section 131 is only provided with the aforementioned first sub-hole 13c1 or second sub-hole 13c2. The gas source, through the vacuum chamber 13b and the first sub-hole 13c1 or second sub-hole 13c2, can also form a vacuum area surrounding the nozzle 12 to adsorb scattered particles in the air.

[0076] It is understandable that when the screw sleeve 17 is provided alone, and there is a gap between the inner wall surfaces 1312 of the vacuum adsorption component 13, the inner wall surface 1312 has a second sub-hole 13c2. However, when the outer wall surface 171 of the screw sleeve is engaged with the inner wall surface 1312, the second sub-hole 13c2 will be blocked by the outer wall surface 171 of the screw sleeve. Therefore, the inner wall surface 1312 of the adsorption part 131 may not have a second sub-hole 13c2. Similarly, when the adsorption part 131 is integrally provided with the screw sleeve 17, the adsorption part 131 does not have a second sub-hole 13c, but only a first sub-hole 13c1.

[0077] In some embodiments, there are multiple first sub-holes 13c1, which are arranged at intervals around the nozzle 12 on the adsorption surface 1311 and communicate with the vacuum chamber 13b. In this way, multiple negative pressure regions can be formed around the nozzle 12 to improve the adsorption effect on scattered points.

[0078] In some embodiments, a plurality of first sub-holes 13c1 are arranged at uniform intervals around the nozzle 12. In this way, since the negative pressure regions are arranged at intervals around the nozzle 12, it is possible to avoid the situation where the negative pressure regions have an asymmetrical or uneven effect on the adhesive droplets, which would lead to deviations in the dispensing position.

[0079] In some other embodiments, there is a single first sub-hole 13c1, which extends around the nozzle 12 and communicates with the vacuum chamber 13b. This creates a continuous negative pressure region around the nozzle 12, which can adsorb scattered droplets within this continuous region, improving the adsorption effect and ensuring a more even distribution of the negative pressure region around the nozzle 12. This reduces the deviation in the influence of negative pressure regions at different locations on the adhesive droplets, thus maintaining the accuracy of the dispensing position.

[0080] It should be noted that the opening of the first sub-hole 13c1 faces away from the valve body 11. This is so that during the dispensing process, it can adsorb the scattered particles that drift into the space between the adsorption part 131 and the product to be dispensed.

[0081] In some embodiments, the extending direction of the first sub-hole 13c1 is set at an angle α to the extending direction of the nozzle 12, the spraying direction of the adhesive droplets, and the thickness direction of the adsorption section 131, and α satisfies the relationship: -15°≤α≤15°. For example, α can be -15°, -10°, -5°, 0°, 5°, 10°, 15°, or other angle values ​​within this range. Within this angle range, it can be ensured that the negative pressure source forms an appropriate negative pressure area in the space between the adsorption section 131 and the product to be dispensed through the first sub-hole 13c1, so as to effectively adsorb the scattered droplets floating in the air. At the same time, it can avoid the negative pressure area being too close to the nozzle 12, which would affect the accuracy of adhesive droplet dispensing, and it can also prevent the situation where the negative pressure area is too far from the nozzle 12, which would prevent the effective adsorption of scattered droplets. When α < -15°, the negative pressure area is too close to the nozzle 12, which may cause the adhesive droplets to deviate, resulting in the adhesive droplets not being accurately sprayed to the preset dispensing position. When α > 15°, the negative pressure area is too far from the nozzle 12. Some of the scattered particles that drift into the air may fall to the surface of the product before reaching the negative pressure area. In other words, the scattered particles cannot be well adsorbed.

[0082] It should be noted that α < 0° means that the opening of the first sub-hole 13c1 faces the side closer to the nozzle 12, α = 0° means that the opening of the first sub-hole 13c1 is parallel to the extension direction of the nozzle 12 / the spraying direction of the adhesive droplets / the thickness direction of the adsorption part 131, and α > 0° means that the opening of the first sub-hole 13c1 faces the side away from the nozzle 12.

[0083] In some embodiments, the aperture of the first sub-orifice 13c1 can be gradually increased in the extension direction of the nozzle 12 / the spray direction of the adhesive droplets / the thickness direction of the adsorption portion 131. This increases the size of the negative pressure region formed by the negative pressure source through the first sub-orifice 13c1, thereby enabling better adsorption of scattered particles in the air.

[0084] In some embodiments, there are multiple second sub-holes 13c2, which are arranged at intervals around the nozzle 12 and on the inner wall surface 1312, and communicate with the vacuum chamber 13b. In this way, multiple negative pressure regions can be formed around the nozzle 12 to improve the adsorption effect on scattered points.

[0085] In some embodiments, a plurality of second sub-holes 13c2 are arranged at uniform intervals around the nozzle 12. In this way, since the negative pressure regions are arranged at intervals around the nozzle 12, it is possible to avoid the situation where the negative pressure regions have an asymmetrical or uneven effect on the adhesive droplets, which could lead to deviations in the dispensing position.

[0086] In some other embodiments, there is one second sub-hole 13c2, which extends around the nozzle 12 and communicates with the vacuum chamber 13b. This creates a continuous negative pressure region around the nozzle 12, which can adsorb scattered droplets within this continuous region, improving the adsorption effect and making the negative pressure region more evenly distributed around the nozzle. This reduces the deviation in the influence of negative pressure regions in different orientations on the adhesive droplets, thus maintaining the accuracy of the dispensing position.

[0087] Of course, in some embodiments, when the adsorption part 131 is provided with both a first sub-hole 13c1 and a second sub-hole 13c2, either the first sub-hole 13c1 or the second sub-hole 13c2 can be provided as one, and the other can be provided as multiple.

[0088] In some embodiments, the adsorption unit 131 further includes an outer wall surface 1313 arranged around the inner wall surface 1312, and a connecting surface 1314 disposed opposite to the adsorption surface 1311. The inner wall surface 1312 and the outer wall surface 1313 are both connected between the adsorption surface 1311 and the connecting surface 1314. The adsorption unit 131 is provided with a plurality of interconnected channels 131a. A portion of these channels 131a penetrates the adsorption surface 1311 and the connecting surface 1314, and another portion penetrates the inner wall surface 1312 and the outer wall surface 1313. These channels 131a constitute the aforementioned vacuum cavity 13b. In this way, the vacuum cavity 13b can be formed by directly providing channels 131a on the vacuum adsorption member 13, which can reduce the processing difficulty of the vacuum cavity 13b. Meanwhile, since the vacuum adsorption component 13 also has multiple openings on each surface, during the dispensing process, the air source can use these openings to create a large negative pressure area around the product to be dispensed, which can not only improve the effect of adsorbing scattered points, but also adsorb dust and other impurities suspended in the air, so that the product to be dispensed is in a cleaner environment and reduces the contamination of the product by impurities other than scattered points.

[0089] In some embodiments, the vacuum adsorption component 13 further includes a connecting portion 132 disposed on the adsorption portion 131. The adsorption portion 131 is connected to the valve body 11 through the connecting portion 132. The connecting portion 132 can be a protrusion or a bump fixed on the adsorption portion 131 for cooperating with the valve body 11.

[0090] Please see also Figure 10 This is a schematic diagram of the air inlet of the vacuum adsorption component in the embodiments of this application.

[0091] In some embodiments, the vacuum adsorption component 13 further includes an air inlet 133 connected to the side of the adsorption component 131 facing the valve body 11. The air inlet 133 has an air passage 133a communicating with the vacuum chamber 13b and is used to connect to a negative pressure source. Since the air inlet 133 is located on the side of the adsorption component 131 facing the valve body 11, interference between the air inlet 133, the pipe connecting the air inlet 133 and the negative pressure source, and the product located below the nozzle 12 can be prevented during dispensing, ensuring successful dispensing. It is understood that a throttle valve is connected to the air inlet 133.

[0092] Please see Figure 11 , Figure 11 This is a schematic diagram of the dispensing machine in the embodiments of this application.

[0093] Secondly, embodiments of this application provide a dispensing machine 2, including the aforementioned dispensing mechanism 1. The dispensing machine 2 further includes a support platform 21 for carrying the product to be dispensed, an automatic feeding device 22 for moving the product to be dispensed onto the support platform 21, and an automatic unloading device 23 for moving the finished dispensing product to a preset position. The dispensing mechanism 1, the support platform 21, the automatic feeding device 22, and the automatic unloading device 23 can be mounted on the same platform.

[0094] In some embodiments, the automatic feeding device 22 and the automatic unloading device 23 may be the same device, such as a robotic arm. The robotic arm can move the product to be glued onto the support platform, and after the glue dispensing mechanism 1 completes the glue dispensing, the robotic arm will move the glued product to the preset unloading position.

[0095] In some embodiments, the dispensing mechanism 1 can also be configured to be movable relative to the support platform. In this way, when it is necessary to dispense glue for different types and specifications of products, the dispensing mechanism 1 can be moved to adapt to the dispensing needs of different products.

[0096] The above provides a detailed description of a dispensing mechanism and dispensing machine disclosed in the embodiments of this application. This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the dispensing mechanism and dispensing machine and its core ideas in this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A dispensing mechanism, characterized in that, include: A valve body for containing adhesive and applying pressure to the adhesive; A nozzle, connected to the valve body, is used to spray out the adhesive liquid; A vacuum adsorption component is connected to the side of the valve body where the nozzle is located. The vacuum adsorption component has a first clearance hole through which the nozzle passes. The vacuum adsorption component has a vacuum chamber and suction holes arranged around the outer periphery of the nozzle. The suction holes are connected to the vacuum chamber. The vacuum chamber is used to connect to an air source. The suction holes are configured to draw out the scattered points of the adhesive liquid dispersed in the air.

2. The dispensing mechanism according to claim 1, characterized in that, The vacuum adsorption element includes an adsorption surface facing away from the valve body, and an inner wall surface surrounding the nozzle and forming the first clearance hole, the first clearance hole penetrating the adsorption surface.

3. The dispensing mechanism according to claim 2, characterized in that, The suction port includes at least one first sub-port and / or at least one second sub-port. The first sub-port is located on the adsorption surface, and the second sub-port is located on the inner wall surface. Both the first sub-port and the second sub-port are connected to the vacuum cavity and are arranged around the nozzle.

4. The dispensing mechanism according to claim 2, characterized in that, The vacuum adsorption component further includes an outer wall surface arranged around the inner wall surface, and a connecting surface disposed opposite to the adsorption surface. The outer wall surface is connected between the adsorption surface and the connecting surface. The vacuum adsorption component has a plurality of interconnected channels. Some of the channels penetrate the adsorption surface and the connecting surface, and some of the channels penetrate the inner wall surface and the outer wall surface. The plurality of channels form the vacuum cavity.

5. The dispensing mechanism according to any one of claims 1-4, characterized in that, The dispensing mechanism further includes a heating element, which is at least partially located in the first clearance hole. The heating element is connected to the side of the valve body where the nozzle is located. The vacuum suction element is connected to the side of the heating element away from the valve body. The heating element has a second clearance hole corresponding to the first clearance hole. The nozzle passes through the first clearance hole and the second clearance hole in sequence. The heating element is used to heat the nozzle.

6. The dispensing mechanism according to claim 5, characterized in that, The vacuum adsorption component and the heating component are integrated into a single unit.

7. The dispensing mechanism according to any one of claims 1-4, characterized in that, The dispensing mechanism further includes a threaded sleeve, which is at least partially located in the first clearance hole. The threaded sleeve is connected to the side of the valve body where the nozzle is located. The nozzle is connected to the threaded sleeve to connect with the valve body. The threaded sleeve has a third clearance hole that communicates with the first clearance hole. The nozzle passes through the first clearance hole and the third clearance hole in sequence. The vacuum adsorption component and the threaded sleeve are configured as an integral component.

8. The dispensing mechanism according to any one of claims 1-4, characterized in that, The dispensing mechanism further includes a reservoir and a liquid inlet. The liquid inlet is connected to the side of the valve body where the nozzle is located and is connected to the nozzle. The reservoir is connected to the liquid inlet and is spaced apart from the valve body. The reservoir delivers adhesive to the valve body through the liquid inlet. The vacuum adsorption component and the liquid inlet are configured as an integral component.

9. The dispensing mechanism according to claim 1, characterized in that, The vacuum adsorption component further includes an adsorption section and an air inlet section. The adsorption section is connected to the side of the valve body where the nozzle is located, and is provided with the first clearance hole, the vacuum chamber and the suction hole. The air inlet section is connected to the side of the adsorption section facing the valve body, and has an air passage communicating with the vacuum chamber. The air inlet section is used to connect to an air source.

10. A dispensing machine, characterized in that, Includes the dispensing mechanism as described in any one of claims 1-9.

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