Dispensing device with multiple glue supply

Abstract

The embodiment of the present application discloses a multi-path glue supply dispensing device, which comprises a gas supply unit, a glue supply unit and a dispensing head, wherein the glue supply unit comprises a plurality of glue barrels; the gas supply unit is connected with the plurality of glue barrels respectively; the plurality of glue barrels are connected with the dispensing head and simultaneously supply glue to the dispensing head. Different from the mode of the plurality of glue barrels supplying glue in turn in the prior art, in the embodiment of the present application, the plurality of glue barrels of the glue supply unit are connected with the dispensing head and simultaneously supply glue to the dispensing head, so that the endurance can be improved, the glue barrels can be replaced frequently, the dispensing defect caused by the glue discharge not in time during the replacement of the glue barrels can be effectively reduced, the glue consumption during the glue discharge process is reduced, the time consumption of the glue discharge debugging can be saved, the efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of dispensing technology, and more particularly to a dispensing device with multiple dispensing channels. Background Technology

[0002] Dispensing technology involves pre-applying an adhesive to the location on a PCB board where surface-mount components will be mounted. After curing, the components are then soldered onto the PCB board using wave soldering. To improve dispensing endurance, existing technologies have proposed multi-bucket dispensing solutions. Specifically, the dispensing device is equipped with multiple glue buckets, which alternately supply adhesive to the dispensing head. While this alternating approach is advantageous, it suffers from drawbacks such as high cost, air bubbles during bucket switching, defects caused by failure to promptly remove adhesive, and glue waste even with timely removal.

[0003] Meanwhile, in existing technologies, the amount of glue remaining is usually judged by the operator's experience, which often leads to dispensing defects due to insufficient glue. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is that in the existing dispensing device, when switching glue tanks, air bubbles are prone to occur. If the glue cannot be discharged in time, defects will occur. Even if the glue can be discharged in time, glue will be wasted.

[0005] To address the aforementioned problems, this invention provides a multi-channel glue dispensing device. The multi-channel glue dispensing device includes an air supply unit, a glue supply unit, and a dispensing head. The glue supply unit includes multiple glue tanks. The air supply unit is connected to each of the multiple glue tanks. Each of the multiple glue tanks is connected to the dispensing head and simultaneously supplies glue to the dispensing head.

[0006] A further technical solution is that the multi-channel glue dispensing device further includes a weighing unit, which includes a controller, a weight sensor, a bracket, and a fixing component; multiple glue barrels are detachably mounted on the fixing component via snap-fits, the weight sensor is connected to the fixing component and the bracket respectively, and the controller is connected to the weight sensor; the multiple glue barrels of the glue dispensing unit are symmetrically arranged, and the weight sensor is located on the line of symmetry of the multiple glue barrels.

[0007] A further technical solution is that the multi-channel glue dispensing device further includes an air supply pipeline, which is connected to the air supply unit, and the multiple glue buckets are all connected to the air supply pipeline; wherein, when the remaining glue amount in the multiple glue buckets is the same, the multiple glue buckets simultaneously supply glue to the dispensing head in the same amount.

[0008] A further technical solution is that the multi-channel glue dispensing device also includes a filter, which is disposed on the air supply pipeline.

[0009] A further technical solution is that the multi-channel glue dispensing device further includes multiple proportional valves configured for each of the glue buckets. The multiple glue buckets are respectively connected to the air supply pipeline through the corresponding proportional valves, and the multiple proportional valves are all connected to the controller. When it is determined from the detection data of the weight sensor that the remaining glue amount of the multiple glue buckets is inconsistent, the controller adjusts the corresponding proportional valves of the multiple glue buckets, thereby adjusting the glue dispensing amount of the multiple glue buckets to make the remaining glue amount of the multiple glue buckets consistent.

[0010] A further technical solution is that the multi-channel glue dispensing device also includes a manual sliding valve, which is located on the air supply pipeline and between the filter and the glue tank.

[0011] A further technical solution is that the multi-channel glue dispensing device also includes a pressure gauge, which is installed on the air supply pipeline and located between the manual sliding valve and the glue tank.

[0012] A further technical solution is that the multi-channel glue dispensing device also includes a glue supply pipeline and a valve. The dispensing head includes a pneumatic impact valve. The glue supply pipeline is connected to the pneumatic impact valve. Multiple glue buckets are connected to the glue supply pipeline. The valve is located on the glue supply pipeline.

[0013] A further technical solution is that the multi-channel glue dispensing device also includes a solenoid valve, and the air supply unit is connected to the pneumatic impact needle valve through the solenoid valve.

[0014] A further technical solution is that the multi-channel glue dispensing device also includes an insulated bucket, and the glue bucket is located inside the insulated bucket.

[0015] Compared with the prior art, the technical effects achieved by the embodiments of the present invention include:

[0016] Unlike the existing technology where multiple glue buckets are supplied with glue in turn, in this embodiment of the invention, multiple glue buckets of the glue supply unit are all connected to the dispensing head and supply glue to the dispensing head simultaneously. This can improve battery life while avoiding frequent glue bucket replacements, effectively reducing dispensing defects caused by untimely glue discharge when glue buckets are replaced; it also reduces glue consumption during the glue discharge process and saves time spent on glue discharge debugging, thus improving efficiency. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a schematic diagram of the piping connection of a multi-channel glue dispensing device provided in an embodiment of the present invention;

[0021] Figure 2 A front view of a multi-channel glue dispensing device provided in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the back of a multi-channel glue dispensing device provided in an embodiment of the present invention.

[0023] Figure Labels

[0024] Air supply unit 8, glue supply unit 19, glue dispensing head 18, controller 5, weight sensor 1, bracket 15, heat preservation tank 3, fixing component 2, air supply pipeline 16, filter 9, proportional valve 6, manual sliding valve 4, glue supply pipeline 17, valve 14, pressure gauge 7, pneumatic needle valve 11, solenoid valve 10, buckle 20, and glue tank 21. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Similar component reference numerals in the drawings represent similar components. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0027] It should also be understood that the terminology used in this specification of embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the invention. As used in this specification of embodiments of the invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0028] See Figure 1-3 This invention provides a multi-channel glue dispensing device. In the multi-channel glue dispensing device, multiple glue tanks 21 simultaneously supply glue to the dispensing head 18, thereby improving the endurance of the dispensing head 18 and avoiding frequent replacement of glue tanks 21.

[0029] Specifically, the multi-channel glue dispensing device includes an air supply unit 8, a glue supply unit 19, and a dispensing head 18. The glue supply unit 19 includes multiple glue tanks 21. The air supply unit 8 is connected to each of the multiple glue tanks 21. Each of the multiple glue tanks 21 is connected to the dispensing head 18 and simultaneously supplies glue to the dispensing head 18. Furthermore, each glue tank 21 has the same glue supply amount, thus the glue consumption of each glue tank 21 is also the same. The glue tanks 21 are of the same model and have the same capacity, thereby ensuring that each glue tank 21 can exhaust its glue at the same time.

[0030] The air supply unit 8 supplies air to the glue tank 21, which then dispenses glue to the dispensing head 18 under air pressure. In this embodiment of the invention, the multiple glue tanks 21 of the glue supply unit 19 are connected in parallel, simultaneously supplying glue to the dispensing head 18 during dispensing, thereby improving endurance and eliminating the need for frequent replacement of the glue tanks 21. For example, in this embodiment, the glue supply unit 19 includes two glue tanks 21.

[0031] The air supply unit 8 can be specifically an air source, such as a compressed air tank, an inert gas tank, etc.

[0032] The technical advantages of this invention compared to the prior art include: Unlike the prior art method of supplying glue in turn from multiple glue buckets 21, in this embodiment of the invention, multiple glue buckets 21 of the glue supply unit 19 are all connected to the dispensing head 18 and supply glue to the dispensing head 18 simultaneously. Therefore, while improving battery life, it avoids frequent replacement of glue buckets 21, effectively reducing dispensing defects caused by untimely glue discharge when glue buckets 21 are replaced; it also reduces glue consumption during the glue discharge process and saves time spent on glue discharge debugging, thus improving efficiency.

[0033] Furthermore, the multi-channel glue dispensing device also includes a weighing unit, which comprises a controller 5, a weight sensor 1, a bracket 15, and a fixing component 2. Multiple glue tanks 21 of the glue dispensing unit 19 are detachably mounted on the fixing component 2 via snap-fit ​​20. The weight sensor 1 is connected to both the fixing component 2 and the bracket 15, and the controller 5 is connected to the weight sensor 1. The snap-fit ​​20 allows for quick disassembly and installation of the glue tanks 21, improving assembly and disassembly efficiency.

[0034] Specifically, bracket 15 is used to mount weight sensor 1 and serves a load-bearing function. Fixing assembly 2 is used to fix multiple glue buckets 21 of glue supply unit 19. For example, fixing assembly 2 can be a fixing plate, and the multiple glue buckets 21 of glue supply unit 19 are mounted on the fixing plate by fasteners. Weight sensor 1 is used to weigh the remaining glue in the glue buckets 21. To improve weighing accuracy, the multiple glue buckets 21 of glue supply unit 19 are arranged symmetrically, and weight sensor 1 is located on the line of symmetry of the multiple glue buckets 21.

[0035] The specific weighing principle is as follows: Weight sensor 1 weighs the total weight of multiple glue buckets 21 (excluding glue), fixing component 2, and glue. Then, the weight of the multiple glue buckets 21 (excluding glue) and fixing component 2 is subtracted from the total weight to obtain the weight of the glue. Furthermore, since each glue bucket 21 has the same capacity, the air pressure of each glue bucket 21 is consistent, and the glue dispensing rate of each glue bucket 21 is the same, the weight of the glue remaining in each glue bucket 21 can be obtained by dividing the weight of the glue by the number of glue buckets 21.

[0036] The weighing unit can monitor the amount of remaining glue in the glue bucket in real time, allowing users to know the amount of glue left and replenish it in time, avoiding poor dispensing due to insufficient glue.

[0037] Furthermore, the multi-channel glue dispensing device also includes an insulated container 3, with the glue container 21 housed within the insulated container 3. In this invention, each glue container 21 is equipped with a corresponding insulated container 3. The insulated container 3 provides excellent insulation, allowing the glue in the glue container 21 to be used in low-temperature environments, thus improving its applicability. Simultaneously, the insulated container 3 is compatible with various models of glue containers 21.

[0038] Furthermore, the multi-channel glue dispensing device also includes an alarm device, which is connected to the controller 5.

[0039] Specifically, when the weight of the adhesive falls below a preset weight threshold, the controller 5 sends an alarm message to the user via an alarm device. For example, the alarm device may include a PC; when the adhesive is consumed to the preset weight threshold, the controller 5 sends an instantaneous signal to the PC in the form of an I / O signal, and the PC software issues an adhesive replacement alarm based on the signal. Alternatively, the alarm device may include a buzzer and / or indicator lights; when the adhesive is consumed to the preset weight threshold, the controller 5 controls the buzzer and / or indicator lights to operate.

[0040] Furthermore, the multi-channel glue dispensing device also includes an air supply line 16, which is connected to the air supply unit 8, and the multiple glue tanks 21 are all connected to the air supply line 16.

[0041] By supplying air to the multiple glue canisters 21 of the glue supply unit 19 through the air supply line 16, the stability of the air supply can be improved, ensuring that the air pressure supplied to each glue canister 21 is consistent. When the remaining glue amount in the multiple glue canisters 21 of the glue supply unit 19 is consistent, the multiple glue canisters 21 of the glue supply unit 19 simultaneously supply glue to the dispensing head 18 in the same amount.

[0042] Furthermore, the multi-channel glue dispensing device also includes a filter 9, which is disposed on the air supply line 16.

[0043] Filter 9 can filter out impurities in the gas, making the gas purer, effectively preventing valves, pipelines and other devices from being blocked, and also improving the stability of the gas supply.

[0044] Furthermore, the multi-channel glue dispensing device also includes multiple proportional valves 6 configured for each of the glue tanks 21. The multiple glue tanks 21 are respectively connected to the air supply pipeline 16 through the corresponding proportional valves 6, and the multiple proportional valves 6 are all connected to the controller 5.

[0045] The weight sensor 1 has multiple sampling points. The controller 5 determines whether the remaining glue amount in each glue bucket 21 is consistent based on the data collected from the sampling points. Specifically, if the data from each sampling point is consistent, it means that the weight at each point is consistent, and therefore the remaining glue amount in the multiple glue buckets 21 is consistent. If the data from each sampling point is different, the sampling point with the larger data value corresponds to the glue bucket 21 with a larger remaining glue amount.

[0046] When the remaining glue levels in the multiple glue buckets 21 are determined to be inconsistent based on the detection data from the weight sensor 1, the controller 5 adjusts the corresponding proportional valves 6 of the multiple glue buckets 21, thereby adjusting the glue dispensing volume of the multiple glue buckets 21 to ensure that the remaining glue levels in the multiple glue buckets 21 are consistent. For example, for glue buckets 21 with more remaining glue, the opening of their corresponding proportional valve 6 is increased, resulting in a larger glue dispensing volume; for glue buckets 21 with less remaining glue, the opening of their corresponding proportional valve 6 is decreased, resulting in a smaller glue dispensing volume; ultimately ensuring that the glue dispensing volume of each glue bucket 21 is consistent. When the remaining glue levels in the multiple glue buckets 21 of the glue supply unit 19 are consistent, the controller 5 controls the opening of each proportional valve 6 to be consistent, so that the multiple glue buckets 21 of the glue supply unit 19 simultaneously supply glue to the dispensing head 18 in the same amount.

[0047] The proportional valve 6 allows for the adjustment of the air pressure supplied to the glue tank 21, thereby precisely regulating the glue supply speed. Simultaneously, the proportional valve 6 is located between the filter 9 and the glue tank 21, ensuring that the gas is filtered before reaching the proportional valve 6, resulting in a high level of cleanliness and effectively preventing clogging.

[0048] Furthermore, the multi-channel glue dispensing device also includes a manual sliding valve 4, which is disposed on the air supply line 16 and located between the filter 9 and the glue tank 21.

[0049] The hand-operated valve 4 is a pressure switch that controls the pressure of the glue tank 21. It can completely cut off the air supply and is usually used when replacing the glue tank 21. The hand-operated valve 4 is located between the filter 9 and the glue tank 21, ensuring that the gas is filtered before reaching the hand-operated valve 4. This results in a high degree of cleanliness of the gas flowing through the hand-operated valve 4, thereby effectively preventing the hand-operated valve 4 from becoming clogged.

[0050] Furthermore, the multi-channel glue dispensing device also includes a glue supply line 17, and the dispensing head 18 includes a pneumatic impact valve 11. The glue supply line 17 is connected to the pneumatic impact valve 11, and multiple glue cans 21 are all connected to the glue supply line 17. Multiple glue cans 21 are supplied with glue to the pneumatic impact valve 11 through the same glue supply line 17, ensuring the stability of the glue supply.

[0051] Furthermore, the multi-channel glue dispensing device also includes a valve 14, which is disposed on the glue supply line 17. The valve 14 can cut off the glue supply line 17 and can be used when changing the glue tank 21, effectively preventing air from entering the pneumatic impact valve 11.

[0052] Furthermore, the multi-channel glue dispensing device also includes a pressure gauge 7, which is installed on the air supply line 16 and located between the manual sliding valve 4 and the glue tank 21. The pressure gauge 7 can accurately measure the air pressure of each glue tank 21, thereby enabling monitoring of the air pressure of the glue tank 21 and timely cutting off the glue supply in case of abnormality, thus improving safety and reliability.

[0053] Furthermore, the multi-channel dispensing device also includes a solenoid valve 10, and the air supply unit 8 is connected to the pneumatic striker valve 11 through the solenoid valve 10. Specifically, the solenoid valve 10 can be a two-position two-way solenoid valve. The solenoid valve 10 can control the opening / closing of the pipeline between the air source and the pneumatic striker valve 11, providing reliable air supply control for the pneumatic striker valve 11.

[0054] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0055] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0057] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0060] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims and their equivalents, this invention also intends to include these modifications and variations.

[0061] The above description describes specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A multi-channel glue dispensing device, characterized in that, It includes an air supply unit, a glue supply unit, and a glue dispensing head. The glue supply unit includes multiple glue tanks. The air supply unit is connected to each of the multiple glue tanks. Each of the multiple glue tanks is connected to the glue dispensing head and simultaneously supplies glue to the glue dispensing head. The multi-channel glue dispensing device further includes a weighing unit, which includes a controller, a weight sensor, a bracket, and a fixing component. Multiple glue barrels are detachably mounted on the fixing component via snap-fits. The weight sensor is connected to the fixing component and the bracket, respectively, and the controller is connected to the weight sensor. The multiple glue barrels of the glue dispensing unit are symmetrically arranged, and the weight sensor is located on the line of symmetry of the multiple glue barrels. The multi-channel glue dispensing device also includes an air supply line, which is connected to the air supply unit, and the multiple glue cans are all connected to the air supply line; wherein, when the remaining glue amount in the multiple glue cans is the same, the multiple glue cans simultaneously and in the same amount supply glue to the dispensing head. The multi-channel glue dispensing device further includes glue supply lines and valves. The dispensing head includes a pneumatic impact valve. The glue supply lines are connected to the pneumatic impact valve. Multiple glue cans are connected to the glue supply lines. The valves are located on the glue supply lines.

2. The multi-channel glue dispensing device according to claim 1, characterized in that, The multi-channel glue dispensing device also includes a filter, which is installed on the air supply line.

3. The multi-channel glue dispensing device according to claim 2, characterized in that, The multi-channel glue dispensing device further includes multiple proportional valves configured for each of the glue cans. The multiple glue cans are connected to the air supply pipeline through the corresponding proportional valves, and the multiple proportional valves are all connected to the controller. When it is determined from the detection data of the weight sensor that the remaining glue amount of the multiple glue cans is inconsistent, the controller adjusts the corresponding proportional valves of the multiple glue cans, thereby adjusting the glue dispensing amount of the multiple glue cans to make the remaining glue amount of the multiple glue cans consistent.

4. The multi-channel glue dispensing device according to claim 2, characterized in that, The multi-channel glue dispensing device also includes a manual sliding valve, which is located on the air supply line and between the filter and the glue tank.

5. The multi-channel glue dispensing device according to claim 4, characterized in that, The multi-channel glue dispensing device also includes a pressure gauge, which is installed on the air supply line and located between the manual sliding valve and the glue tank.

6. The multi-channel glue dispensing device according to claim 1, characterized in that, The multi-channel glue dispensing device also includes a solenoid valve, and the air supply unit is connected to the pneumatic impact needle valve through the solenoid valve.

7. The multi-channel glue dispensing device according to claim 5, characterized in that, The multi-channel glue dispensing device also includes an insulated bucket, and the glue bucket is located inside the insulated bucket.

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