Electric dispensing machine

Abstract

The utility model relates to the technical field of dispensing, and discloses an electric dispensing machine which comprises a feeding assembly, and the feeding assembly comprises at least two groups of charging baskets; the glue dispensing assembly comprises a glue dispensing pipe and a supporting structure, the glue dispensing pipe is arranged on the supporting structure, the supporting structure is provided with at least two feeding channels, one ends of the two feeding channels communicate with the two sets of material barrels correspondingly, and the other ends of the two feeding channels communicate with the glue dispensing pipe correspondingly; the stirring assembly is arranged on the supporting structure and comprises a stirring rod which can rotatably extend into the dispensing pipe; when the feeding channel supplies materials to the glue dispensing pipe, glue in the feeding channel flows into the glue dispensing pipe along the outer wall of the stirring rod. The rubber mixing device has the advantages of being capable of achieving dynamic mixing of rubber materials, compact in structure and easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of dispensing technology, and in particular to an electric dispensing machine. Background Technology

[0002] Electric dispensing machines are automated devices widely used in electronic packaging, semiconductor packaging, and precision instrument manufacturing. Their core function is to precisely control the flow rate and path of adhesives to apply fluid materials such as glues, sealants, and conductive adhesives to the target location. With the increasing demands of industrial manufacturing for multi-material composite processes, the technical shortcomings of traditional electric dispensing machines in terms of adhesive mixing uniformity have become increasingly apparent. In existing technologies, electric dispensing machines typically use independent feeding systems to deliver different adhesives separately, achieving mixing through a static mixing tube. However, the static mixing tube relies on the shear force of the fluid itself for mixing. For adhesives with large viscosity differences or fast curing rates, uneven mixing, localized curing, or delamination can easily occur, leading to unstable product performance after dispensing. Secondly, existing mixing devices struggle to dynamically adjust the stirring intensity during dispensing, failing to adapt to changes in adhesive ratios or process parameters, thus limiting equipment flexibility and process accuracy. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose an electric dispensing machine that can realize dynamic mixing of adhesive materials.

[0004] The technical solution adopted by this utility model to solve its technical problem is an electric dispensing machine, comprising:

[0005] A feeding assembly, comprising at least two sets of feeding hoppers;

[0006] A dispensing assembly, comprising a dispensing tube and a support structure, wherein the dispensing tube is disposed on the support structure, and the support structure is provided with at least two feeding channels, wherein one end of each of the two feeding channels is connected to two sets of material barrels, and the other end is connected to the dispensing tube.

[0007] A stirring assembly, disposed on the support structure, includes a stirring rod that can be rotatably extended into the dispensing tube; when the feeding channel supplies material to the dispensing tube, the adhesive in the feeding channel flows along the outer wall of the stirring rod into the dispensing tube.

[0008] In the aforementioned electric dispensing machine, the support structure is further provided with a movable hole through which the stirring rod can rotatably pass. The feeding channel includes a first channel and a second channel with a discharge end, and the discharge end is respectively connected to the movable hole. When the stirring rod is in the movable hole, the adhesive can flow through the discharge end to the outer wall of the stirring rod.

[0009] In the above-mentioned electric dispensing machine, the first channel and the second channel are arranged in parallel, and the support structure is also provided with a third channel. The third channel passes through the first channel and the second channel, and the first channel and the second channel form the discharge end arranged opposite to each other. The movable hole passes through the third channel and communicates with the discharge end.

[0010] In the above-mentioned electric dispensing machine, the first channel, the second channel and the third channel respectively penetrate the support structure, and the first channel and the second channel are provided with a first sealing member at the end away from the material barrel, and the third channel is provided with a second sealing member at both ends.

[0011] In the aforementioned electric dispensing machine, the stirring assembly includes a driving member disposed on the support structure. The driving member is connected to the stirring rod and can drive the stirring rod to rotate around its own axis.

[0012] In the above-mentioned electric dispensing machine, the stirring rod includes a first connecting rod and a second connecting rod. The first connecting rod passes through the movable hole, one end of which is connected to the output end of the driving component, and the other end is detachably connected to the second connecting rod. The second connecting rod is located inside the dispensing tube and rotates synchronously with the first connecting rod.

[0013] In the above-mentioned electric dispensing machine, the second connecting rod extends along the length of the dispensing tube and is provided with spiral blades arranged along its own length; when the adhesive flows on the second connecting rod, the adhesive can flow through the spiral blades.

[0014] In the aforementioned electric dispensing machine, a mounting bracket is detachably disposed between the driving component and the supporting structure. The mounting bracket is provided with a connecting plate that extends horizontally away from the driving component, and the extended end of the connecting plate is detachably connected to a robotic arm, which can drive the stirring assembly to move under the drive of the robotic arm.

[0015] In the aforementioned electric dispensing machine, the support structure has a connecting part on the side facing the dispensing tube, and the movable hole passes through the connecting part, and the dispensing tube is detachably connected to the connecting part.

[0016] In the aforementioned electric dispensing machine, the feeding assembly further includes at least two control valves. The control valves are detachably mounted on the support structure and correspond one-to-one with and connected to the two feeding channels and the two sets of material barrels. The control valves can connect or disconnect the feeding channels and the material barrels.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] 1. In this utility model, a support structure with at least two feeding channels is provided, with one end of each feeding channel connected to two sets of material buckets and the other end connected to a dispensing tube. A rotatable stirring rod is also provided on the support structure, extending into the dispensing tube. When the feeding channels supply material to the dispensing tube, the adhesive material in the feeding channels flows along the outer wall of the stirring rod into the dispensing tube. Through the synergistic effect of the feeding channels and the stirring rod, dynamic mixing of the adhesive material is achieved, effectively avoiding uneven mixing and stratification. Furthermore, shearing and mixing are simultaneously completed as the adhesive material flows along the outer wall of the stirring rod, achieving integrated mixing and conveying. This eliminates the need for a traditional mixing bucket structure and effectively reduces manufacturing costs.

[0019] 2. In this utility model, by setting a third channel that passes through the first and second channels, and making the first and second channels form oppositely arranged discharge ends, and by having the movable hole pass through the third channel and connect with the two discharge ends; this design makes the two discharge ends symmetrically face the stirring rod in the movable hole, thereby allowing the adhesive to flow synchronously from the left and right discharge ends to the outer wall of the stirring rod, forming a bidirectional shear flow field under the action of the rotating stirring rod, which greatly improves the contact area and mixing efficiency of different components of the adhesive; in addition, the symmetrical layout also avoids the adhesive bias caused by unilateral feeding, and with the synchronous disturbance of the adhesive on both sides by the stirring rod, the mixing dead corners are completely eliminated.

[0020] 3. In this utility model, the stirring rod adopts a split design, including a first connecting rod and a second connecting rod. The first connecting rod passes through the movable hole and is detachably connected to the second connecting rod. The second connecting rod is located inside the dispensing tube, which also allows the dispensing tube to be detachably connected to the support structure, thereby improving the convenience of disassembly, assembly, and maintenance of the stirring rod and the dispensing tube. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an electric dispensing machine according to the present invention.

[0022] Figure 2 This is a partial structural schematic diagram of an electric dispensing machine according to the present invention.

[0023] Figure 3 for Figure 2 Exploded view.

[0024] Figure 4 This is a schematic diagram of the supporting structure in this utility model.

[0025] Figure 5 for Figure 4 Cross-sectional view at point AA.

[0026] Figure 6 for Figure 4 Cross-sectional view at point BB.

[0027] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 100, dispensing tube; 200, support structure; 210, feeding channel; 211, first channel; 212, second channel; 220, movable hole; 230, third channel; 240, connecting part; 300, stirring rod; 310, first connecting rod; 320, second connecting rod; 321, spiral blade; 400, first sealing element; 410, second sealing element; 500, driving element; 510, coupling; 600, mounting bracket; 601, mounting hole; 610, connecting plate; 700, control valve; 800, robotic arm. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] like Figures 1 to 6 As shown, in this embodiment, an electric dispensing machine includes:

[0034] A feeding assembly comprising at least two sets of hoppers (not shown in the figure);

[0035] A dispensing assembly includes a dispensing tube 100 and a support structure 200. The dispensing tube 100 is disposed on the support structure 200. The support structure 200 is provided with at least two feeding channels 210, and one end of each feeding channel 210 is connected to two sets of material barrels, and the other end is connected to the dispensing tube 100.

[0036] The mixing assembly, mounted on the support structure 200, includes a stirring rod 300 rotatably extending into the dispensing tube 100. When the feeding channel 210 feeds material into the dispensing tube 100, the adhesive material in the feeding channel 210 flows along the outer wall of the stirring rod 300 into the dispensing tube 100. This design, through the synergistic action of the feeding channel 210 and the stirring rod 300, achieves dynamic mixing of the adhesive material, effectively avoiding uneven mixing and stratification. Furthermore, it simultaneously performs shearing and mixing as the adhesive material flows along the outer wall of the stirring rod 300, integrating mixing and conveying into one process. This eliminates the need for a traditional mixing tank structure and effectively reduces manufacturing costs.

[0037] Specifically, such as Figures 1 to 6 As shown, in this embodiment, the electric dispensing machine mainly consists of a robotic arm 800, a feeding assembly, a dispensing assembly, and a mixing assembly.

[0038] In this embodiment, the robotic arm 800 is a multi-axis design, with its output end detachably connected to the connecting plate 610. It can drive the mixing and dispensing components to move freely in three-dimensional space, thereby enabling the dispensing components to perform precise dispensing operations at different positions. This not only improves the flexibility of dispensing but also adapts to complex product shapes and sizes, effectively enhancing the adaptability of the electric dispensing machine.

[0039] In this embodiment, the feeding assembly is mainly used to provide the adhesive required for dispensing to the dispensing assembly. It includes at least two sets of material tanks (not shown in the figure) to supply multiple types of adhesives to meet the user's needs for mixed adhesives. The number of material tanks can be set as needed.

[0040] In this embodiment, the feeding assembly further includes at least two control valves 700. Each control valve 700 is detachably mounted on the support structure 200 and corresponds to and is connected to one of the two feeding channels 210 and the two sets of material barrels. The control valves 700 can connect or disconnect the feeding channels 210 and the material barrels. The introduction of these control valves 700 enables independent adjustment of the feeding switch and flow rate of each material barrel, allowing for dynamic adjustment of the multi-component ratio and effectively improving the feeding control accuracy.

[0041] Preferably, in this embodiment, both control valves 700 are solenoid valves, arranged vertically side by side on the support structure 200, and are detachably connected to the support structure 200 by screws. The number of control valves 700 corresponds one-to-one with the number of feed channels 210.

[0042] In this embodiment, the dispensing assembly includes a dispensing tube 100 and a support structure 200. The dispensing tube 100 is located below the support structure 200 and communicates with the material tank through the support structure 200. It is used to receive adhesive and apply the adhesive to a designated position on the workpiece, thereby realizing the dispensing operation. The support structure 200 has at least two built-in supply channels 210. One end of each supply channel 210 corresponds to and communicates with one of the two material tanks, and the other end communicates with the dispensing tube 100, ensuring that the adhesive can flow smoothly into the dispensing tube 100. Compared with the traditional design that connects the material tank and the dispensing tube 100 through a flexible hose, the design of the built-in supply channels 210 can avoid the deformation of the hose due to external forces, ensuring the smoothness and uniformity of the material supply.

[0043] In this embodiment, the dispensing tube 100 has a hollow structure with openings at both ends, is vertically arranged below the support structure 200, and is detachably connected to the connecting portion 240 of the support structure 200. Preferably, the top of the dispensing tube 100 is provided with an internal thread, which facilitates easy disassembly and maintenance by forming a threaded connection with the connecting portion 240. This allows users to easily clean the dispensing tube 100 or configure dispensing tubes 100 with different inner diameters or lengths as needed, thus expanding application scenarios.

[0044] In this embodiment, the support structure 200 has a connecting portion 240 on the side facing the dispensing tube 100. The connecting portion 240 is a hollow cylinder that extends away from the support structure 200, and the movable hole 220 passes through the connecting portion 240 so that the stirring rod 330 can be smoothly inserted into the dispensing tube 100. This design enables a detachable connection between the dispensing tube 100 and the support structure 200.

[0045] In this embodiment, the support structure 200 is stepped, with one side for mounting the stirring assembly and the other side for mounting the control valve 700. This stepped design provides independent mounting surfaces for the stirring assembly and the control valve 700, ensuring rapid positioning.

[0046] In this embodiment, the support structure 200 is provided with a movable hole 220 through which the stirring rod 300 can rotatably pass. The movable hole 220 is circular, vertically penetrates the support structure 200, and is coaxially arranged with the dispensing tube 100. This design ensures that the stirring rod 300 can smoothly extend into the dispensing tube 100.

[0047] In this embodiment, the number of feeding channels 210 can be designed according to actual needs. Preferably, there are two sets of feeding channels 210, including a first channel 211 and a second channel 212 with discharge ends. The first channel 211 and the second channel 212 are L-shaped and pass through the support structure 200 respectively. The inlet ends of the first channel 211 and the second channel 212 are respectively located below two control valves 700 and are connected to the material tank through the control valves 700. The discharge ends are arranged opposite to each other and are connected to the movable hole 220 respectively. When the stirring rod 300 is in the movable hole 220, the adhesive can flow to the outer wall of the stirring rod 300 through the discharge end. This design ensures that the adhesive can flow smoothly to the outer wall of the stirring rod 300, so that the adhesive is mixed with the rotation of the stirring rod 300 and flows into the dispensing tube 100 under the action of gravity, and then flows to the designated position of the workpiece along the opening of the dispensing tube 100. Compared to the traditional design that collects multiple types of adhesives by adding an extra mixing tank and then mixing them with a stirring rod 300, this design not only saves on the design of the mixing tank but also improves the supply efficiency of the mixed adhesives.

[0048] In this embodiment, the first channel 211 and the second channel 212 are arranged in parallel or cross-shaped. Preferably, the first channel 211 and the second channel 212 are arranged in parallel and aligned with each other. This design ensures the ease of processing the first channel 211 and the second channel 212.

[0049] To improve the uniformity of rubber compound mixing, in this embodiment, the support structure 200 is further provided with a third channel 230. The third channel 230 vertically passes through the first channel 211 and the second channel 212, forming oppositely arranged discharge ends. The movable hole 220 passes through the third channel 230 and connects to the two discharge ends. This design makes the two discharge ends symmetrically oriented towards the stirring rod 300 inside the movable hole 220, thereby allowing the rubber compound to flow synchronously from the left and right discharge ends to the outer wall of the stirring rod 300. Under the rotation of the stirring rod 300, a bidirectional shear flow field is formed, significantly improving the contact area and mixing efficiency of different component rubber compounds. Furthermore, the symmetrical layout also avoids rubber compound flow deviation caused by unilateral feeding, and with the synchronous disturbance of the rubber compound on both sides by the stirring rod 300, mixing dead zones are completely eliminated. In addition, the design of the third channel 230 vertically connecting the first and second channels 212 makes the first channel 211 and the second channel 212 form a compact intersection structure, which simplifies the processing flow of the material supply channel 210 and achieves efficient utilization of the internal space of the support structure 200 through optimized layout.

[0050] In this embodiment, the first channel 211, the second channel 212, and the third channel 230 respectively penetrate the support structure 200. The first channel 211 and the second channel 212 are provided with a detachable first sealing element 400 at their ends away from the material container, and the third channel 230 is provided with detachable second sealing elements 410 at both ends. Both the first sealing element 400 and the second sealing element 410 are cylindrical. The length of the first sealing element 400 is adapted to the straight-line distance from the third channel 230 to the edge of the support structure 200, and the length of the second sealing element 410 is adapted to the straight-line distance from the first channel 211 and the second channel 212 to the edge of the support structure 200. That is, after the first sealing element 400 and the second sealing element 410 are installed, the adhesive can flow along the first channel 211 and the second channel 212 to the outer wall of the stirring rod 300 inside the movable hole 220, without overflowing outside the support structure 200 or flowing away from the movable hole 220.

[0051] To achieve dynamic mixing of the adhesive, this embodiment includes a mixing assembly detachably mounted on the support structure 200. The assembly includes a stirring rod 300 rotatably passing through the movable hole 220 and extending into the dispensing tube 100, and a drive component 500 mounted on the support structure 200 and connected to the stirring rod 300. Preferably, the drive component 500 is a rotary motor connected to the stirring rod 300 via a coupling 510, and can drive the stirring rod 300 to rotate around its own axis. This design causes the adhesive to be subjected to shearing action as it flows along the outer wall of the rotating stirring rod 300, achieving real-time mixing and improving the uniformity of the adhesive mixture. The design of the drive component 500 allows for precise control of the mixing intensity, adapting to high-viscosity or rapidly curing adhesives.

[0052] In this embodiment, the stirring rod 300 is a split design, including a first connecting rod 310 and a second connecting rod 320 arranged vertically in sequence. The first connecting rod 310 passes through the movable hole 220, with one end connected to the output end of the drive component 500 via a coupling 510, and the other end detachably connected to the second connecting rod 320 via bolts. The second connecting rod 320 is located inside the dispensing tube 100, extends along the length of the dispensing tube 100, and rotates synchronously with the rotation of the first connecting rod 310. This design makes the disassembly, assembly, and maintenance of the second connecting rod 320 more convenient; that is, when the user needs to replace the second connecting rod 320, the second connecting rod 320 can be removed after disassembling the dispensing tube 100.

[0053] In this embodiment, the second connecting rod 320 extends along the length of the dispensing tube 100 and is provided with spiral blades 321 arranged along its own length. When the adhesive flows on the second connecting rod 320, the adhesive can flow through the spiral blades 321. The design of the spiral blades 321 can generate axial and radial combined shear forces and guide the adhesive to flow along a specific path, so that different types of adhesives can be fully mixed before entering the dispensing tube 100, avoiding uneven mixing and stratification, and further improving the quality of the mixed adhesive. At the same time, it also makes the adhesive subject to continuous shearing action during the flow, which significantly improves the mixing efficiency. This dynamic mixing method not only improves the mixing speed, but also ensures that the adhesive reaches the ideal mixing state in a short time.

[0054] In this embodiment, a mounting bracket 600 is detachably disposed between the drive component 500 and the support structure 200. The mounting bracket 600 is detachably fixed to the support structure 200 by screws and is used to mount the drive component 500. The mounting bracket 600 is also provided with a connecting plate 610 extending horizontally away from the drive component 500. The extended end of the connecting plate 610 is detachably connected to the output end of the robot 800 and can drive the stirring assembly to move under the drive of the robot 800, thereby realizing precise dispensing at multiple angles and positions. The mounting bracket 600 is provided with a mounting hole 601 through which the first connecting rod 310 passes, and a receiving cavity for accommodating the output end of the drive component 500 and the coupling 510.

Claims

1. An electrically powered dispensing machine characterized by, The application relates to a glue feeding device, which comprises the following parts: a feeding assembly, which comprises at least two glue barrels; a glue dispensing assembly, which comprises a glue dispensing pipe and a supporting structure, the glue dispensing pipe being arranged on the supporting structure, the supporting structure being provided with at least two feeding channels, one end of each of the two feeding channels being communicated with two glue barrels respectively, and the other end of each of the two feeding channels being communicated with the glue dispensing pipe respectively; a stirring assembly, which is arranged on the supporting structure and comprises a stirring rod rotatably extending into the glue dispensing pipe; when the feeding channels feed glue into the glue dispensing pipe, the glue in the feeding channels flows along the outer wall of the stirring rod into the glue dispensing pipe.

2. The electrically powered dispenser of claim 1, wherein, The supporting structure is further provided with a movable hole through which the stirring rod can rotate, the feeding channels comprise a first channel and a second channel with discharge ends, and the discharge ends are communicated with the movable hole respectively; when the stirring rod is in the movable hole, the glue can flow onto the outer wall of the stirring rod through the discharge ends.

3. The electrically powered dispenser of claim 2, wherein, The first channel and the second channel are arranged in parallel, the supporting structure is further provided with a third channel, the third channel passes through the first channel and the second channel, and the first channel and the second channel form the opposite discharge ends, and the movable hole is communicated with the discharge ends through the third channel.

4. The electrically powered dispenser as claimed in claim 3, wherein, The first channel, the second channel and the third channel pass through the supporting structure respectively, and the first channel and the second channel are provided with a first sealing member at the end far away from the glue barrel, and the third channel is provided with a second sealing member at both ends.

5. The electrically powered dispenser as claimed in claim 2, wherein, The stirring assembly comprises a driving member arranged on the supporting structure, the driving member is connected with the stirring rod and can drive the stirring rod to rotate around the axis of the stirring rod.

6. The electrically powered dispensing machine of claim 5, wherein, The stirring rod comprises a first connecting rod and a second connecting rod, the first connecting rod passes through the movable hole, one end of the first connecting rod is connected with the output end of the driving member, the other end of the first connecting rod is detachably connected with the second connecting rod, the second connecting rod is in the glue dispensing pipe and rotates synchronously with the first connecting rod.

7. The electrically powered dispenser of claim 6, wherein, The second connecting rod extends along the length direction of the glue dispensing pipe and is provided with helical blades arranged along the length direction of the second connecting rod; when the glue flows on the second connecting rod, the glue can flow through the helical blades.

8. The electrically powered dispenser of claim 5, wherein, The device further comprises a mounting frame detachably arranged between the driving member and the supporting structure, the mounting frame is provided with a connecting plate extending horizontally away from the driving member, and the extending end of the connecting plate is detachably connected with a manipulator and can drive the stirring assembly to move under the driving of the manipulator.

9. The electrically powered dispenser of claim 2, wherein, The side of the supporting structure facing the glue dispensing pipe is provided with a connecting part, and the movable hole passes through the connecting part, and the glue dispensing pipe is detachably connected to the connecting part.

10. The electrically powered dispensing machine of claim 1, wherein, The feeding assembly further comprises at least two control valves, the control valves are detachably arranged on the supporting structure, correspond to and are connected with two feeding channels and two glue barrels respectively, and the control valves can connect or disconnect the feeding channels and the glue barrels.

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