Double liquid automatic proportioning machine

Abstract

The utility model relates to a kind of double liquid automatic proportioning machine, including first material bucket, second material bucket, first discharge mechanism, second discharge mechanism and mixer, mixer includes first valve body, second valve body, discharge pipe, three-way connector and stirring assembly;First material bucket is connected with the pipeline of one end of first discharge mechanism, and the pipeline of other end of first discharge mechanism is connected with the pipeline of one end of first valve body;Second material bucket is connected with the pipeline of one end of second discharge mechanism, and the pipeline of other end of second discharge mechanism is connected with the pipeline of one end of second valve body;The pipeline of other end of first valve body, the pipeline of other end of second valve body and the pipeline of one end of discharge pipe are respectively connected with the pipeline of three ends of three-way connector;The driving end of stirring assembly is fixedly connected to the fourth end of three-way connector, and the output end of stirring assembly is placed in discharge pipe after passing through the fourth end of three-way connector, and the output end diameter of stirring assembly is less than the inner diameter of discharge pipe. Realize that the error of proportioning is reduced and mixed uniformity is higher.

Description

Technical Field

[0001] This utility model relates to the field of intelligent manufacturing, and in particular to a dual-liquid automatic proportioning machine. Background Technology

[0002] In the manufacturing process of electronic products such as LED displays, the potting process is a crucial step in ensuring the product's waterproof and thermal conductivity performance. Currently, potting lines typically use two-component adhesives (such as epoxy resin and silicone), and their post-curing performance depends on the precise ratio of the two components. However, existing adhesive mixing processes mainly rely on manual operation, and the accuracy of manual mixing is easily affected by the operator's experience, leading to mixing deviations. This, in turn, affects the adhesive's curing effect and product performance. Furthermore, differences in adhesive mixing between different batches or between operators can cause fluctuations in product quality, increasing the defect rate. Utility Model Content

[0003] Therefore, it is necessary to provide an automatic two-component mixing machine to address the problem of low mixing accuracy in traditional two-component adhesive mixing methods.

[0004] This utility model provides a two-liquid automatic proportioning machine, including a first material tank, a second material tank, a first discharge mechanism, a second discharge mechanism, and a mixer. The mixer includes a first valve body, a second valve body, a discharge pipe, a three-way connector, and a stirring assembly. The first material bucket is connected to one end of the pipe of the first discharge mechanism, and the other end of the first discharge mechanism is connected to one end of the pipe of the first valve body; the second material bucket is connected to one end of the pipe of the second discharge mechanism, and the other end of the second discharge mechanism is connected to one end of the pipe of the second valve body. The other end of the first valve body, the other end of the second valve body, and one end of the discharge pipe are respectively connected to the three-end pipes of the three-way connector; the driving end of the stirring assembly is fixedly connected to the fourth end of the three-way connector, and the output end of the stirring assembly passes through the fourth end of the three-way connector and is placed inside the discharge pipe, and the diameter of the output end of the stirring assembly is smaller than the inner diameter of the discharge pipe.

[0005] In some embodiments, the stirring assembly includes a stirring motor, a transmission rod, and a stirring paddle. The stirring motor is fixedly connected to the fourth end of the three-way connector. One end of the transmission rod is fixedly connected to the output end of the stirring motor. The stirring paddle is placed inside the discharge pipe. The other end of the transmission rod passes through the fourth end of the three-way connector and is fixedly connected to the stirring paddle. The transmission rod and the three-way connector are rotatably connected via a rotary bearing.

[0006] In some embodiments, a cleaning tank is also included. A first three-way valve is provided between the first discharge mechanism and the first valve body. The first end and the second end of the first three-way valve are respectively connected to the first discharge mechanism and the first valve body via pipelines. A second three-way valve is provided between the second discharge mechanism and the second valve body. The first end and the second end of the second three-way valve are respectively connected to the second discharge mechanism and the second valve body via pipelines. The cleaning tank is connected to the third end of the first three-way valve and the third end of the second three-way valve via pipelines.

[0007] In some embodiments, the first discharge mechanism includes a third valve body, a fourth valve body, and a material extraction assembly. One end of the third valve body is connected to the first material bucket pipe, and the other end of the third valve body is connected to one end of the material extraction assembly pipe. One end of the fourth valve body is connected to the other end of the material extraction assembly pipe, and the other end of the fourth valve body is connected to the first valve body pipe.

[0008] In some embodiments, the material extraction assembly includes a rotary motor, a lead screw, a connecting block, a piston rod, and a storage tube. The output end of the rotary motor is fixedly connected to the lead screw, one end of the lead screw is threadedly connected to one end of the connecting block, the other end of the connecting block is fixedly connected to one end of the piston rod, and the other end of the piston rod is piston-connected to the storage tube.

[0009] In some embodiments, one end of the piston rod is provided with a groove with an inner diameter larger than that of the lead screw, and a threaded hole on the connecting block that is threaded to the lead screw extends from one end of the connecting block to the other end.

[0010] In some embodiments, a sealing gasket is provided at the connection between the piston rod and the storage tube, the sealing gasket is sleeved on the piston rod, and the outer side of the sealing gasket abuts against the inner wall of the storage tube.

[0011] In some embodiments, a three-way pipe is provided between one end of the third valve body and the first material bucket, the first material bucket is connected to the first end of the three-way pipe, the second end of the three-way pipe is connected to a discharge valve, and the third end of the three-way pipe is connected to one end of the third valve body.

[0012] In some embodiments, the first hopper is connected to a feeding mechanism, which includes a vacuum assembly and a feeding assembly. The vacuum assembly includes a vacuum pump and a pipe connection valve. One end of the pipe connection valve is connected to the top pipe of the first hopper, and the other end of the pipe connection valve is connected to the vacuum pump pipe. The feeding assembly includes a feeding pipe and a feeding valve and a feeding funnel connected to the feeding pipe. One end of the feeding pipe is connected to a side pipe of the first material barrel, and the feeding funnel pipe is connected between the first material barrel and the feeding valve.

[0013] In some embodiments, a control panel is also included, electrically connected to the mixer, the first discharge mechanism, and the second discharge mechanism.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: Raw materials of different components are stored in the first and second material hoppers respectively. The first and second discharge mechanisms convey the materials to the mixer according to a preset ratio. The mixer uses a three-way connector as its core hub. The first and second valve bodies control the flow of the two materials respectively. When the valves are open, the materials converge at the three-way connector and enter the discharge pipe. The drive end of the stirring component is fixed to the fourth end of the three-way connector, and the output end extends into the discharge pipe. The rotating stirring blades generate strong shear force, enabling the two-component materials to achieve instantaneous and uniform mixing during the flow process. The design of the discharge pipe diameter being larger than the stirring shaft forms an annular flow channel, which ensures mixing efficiency while avoiding excessive flow resistance. This invention achieves independent material control through a split valve body structure, and the high-precision discharge mechanism can reduce the ratio error. Through the coupling design of dynamic stirring and pipeline transportation, the stirring component is directly integrated into the flow channel, resulting in lower energy consumption and higher mixing uniformity compared to traditional static mixers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the automatic two-liquid mixing machine shown in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the automatic two-liquid mixing machine shown in an embodiment of the present invention from another perspective; Figure 3 This is a schematic diagram of the structure of the mixer shown in an embodiment of the present invention; Figure 4 This is an exploded view structural diagram of the mixer shown in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the first discharge mechanism shown in an embodiment of the present invention; Figure 6 This is an exploded view structural diagram of the material extraction assembly shown in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the first feeding mechanism shown in an embodiment of the present invention. Detailed Implementation

[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0017] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] See Figures 1 to 3 The present invention provides a dual-liquid automatic mixing machine, including a first material tank 1, a second material tank 2, a first discharge mechanism 3, a second discharge mechanism 4, and a mixer 5. The mixer 5 includes a first valve body 51, a second valve body 52, a discharge pipe 53, a three-way connector 54, and a stirring assembly 55. The first material bucket 1 is connected to one end of the pipe of the first discharge mechanism 3, and the other end of the first discharge mechanism 3 is connected to one end of the pipe of the first valve body 51; the second material bucket 1 is connected to one end of the pipe of the second discharge mechanism 3, and the other end of the second discharge mechanism 4 is connected to one end of the pipe of the second valve body 52. The other end of the first valve body 51, the other end of the second valve body 52, and one end of the discharge pipe 53 are respectively connected to the three-end pipes of the three-way connector 54; the driving end of the stirring assembly 55 is fixedly connected to the fourth end of the three-way connector 54, and the output end of the stirring assembly 55 passes through the fourth end of the three-way connector 54 and is placed inside the discharge pipe 53, and the diameter of the output end of the stirring assembly 55 is smaller than the inner diameter of the discharge pipe 53.

[0020] In this embodiment, the first valve body 51 and the second valve body 52 can be solenoid valves to precisely control the material output ratio. The first material tank 1 and the second material tank 2 store raw materials of different components respectively. The first discharge mechanism 3 and the second discharge mechanism 4 transport the materials to the mixer according to a preset ratio. The mixer uses a three-way connector 54 as its core hub. The first valve body 51 and the second valve body 52 control the flow and ratio of the two materials respectively. When the valves are open, the materials converge at the three-way connector 54 and then enter the discharge pipe 53. The drive end of the stirring assembly 55 is fixed to the fourth end of the three-way connector 54, and the output end extends into the discharge pipe 53. Strong shearing force is generated by rotating the stirring blades, enabling instantaneous and uniform mixing of the two components during flow. The discharge pipe 53, with a diameter larger than the stirring shaft, forms an annular flow channel, ensuring mixing efficiency while avoiding excessive flow resistance. This invention achieves independent material control through a split valve body structure, and can reduce mixing errors when combined with a high-precision discharge mechanism. Through the coupling design of dynamic stirring and pipeline transportation, the stirring component is directly integrated into the flow channel, resulting in lower energy consumption and higher mixing uniformity compared to traditional static mixers.

[0021] It should be understood that the installation position of the mixer 5 shown in the figure is only an example. In actual applications, the mixer 5 can be installed on production lines such as dispensing machines, and there is no limitation on this.

[0022] In some embodiments, such as Figure 4 As shown, the stirring assembly 55 includes a stirring motor 551, a transmission rod 552, and a stirring paddle 553. The stirring motor 551 is fixedly connected to the fourth end of the three-way connector 54. One end of the transmission rod 552 is fixedly connected to the output end of the stirring motor 551. The stirring paddle 553 is placed inside the discharge pipe 53. The other end of the transmission rod 552 passes through the fourth end of the three-way connector 54 and is fixedly connected to the stirring paddle 553. The transmission rod 552 and the three-way connector 54 are rotatably connected by a rotary bearing.

[0023] In this embodiment, the stirring motor 551 is fixed to the fourth end of the three-way connector 54, and drives the mixing tube 553 inside the discharge pipe 53 to rotate at high speed through the transmission rod 552 (which cooperates with the rotary bearing to ensure sealing). When the two-component materials converge through the three-way connector 54, the strong shear force generated by the mixing tube 553 causes the materials to mix instantaneously during the conveying process. The rotary bearing structure ensures transmission stability and prevents leakage, and the gap design between the mixing tube and the tube wall makes the mixing uniformity higher.

[0024] In some embodiments, such as Figure 2 and Figure 4As shown, it also includes a cleaning tank 6. A first three-way valve 61 is provided between the first discharge mechanism 3 and the first valve body 51. The first end and the second end of the first three-way valve 61 are respectively connected to the first discharge mechanism 3 and the first valve body 51 via pipes. A second three-way valve 62 is provided between the second discharge mechanism 3 and the second valve body 52. ​​The first end and the second end of the second three-way valve 62 are respectively connected to the second discharge mechanism 3 and the second valve body 52 via pipes. The cleaning tank 6 is connected to the third end of the first three-way valve 61 and the third end of the second three-way valve 62 via pipes.

[0025] In this embodiment, the cleaning tank 6 is connected in parallel to the pipes of the first discharge mechanism 3 and the second discharge mechanism 4 via a first three-way valve 61 and a second three-way valve 62, respectively. When switching to the cleaning mode, the three-way valves interchange the cleaning liquid passage and the material passage, allowing the cleaning liquid to flush the mixer pipes. The universal double three-way valve structure completes the passage switching, avoiding cross-contamination.

[0026] In some embodiments, such as Figure 5 As shown, the first discharge mechanism 3 includes a third valve body 31, a fourth valve body 32, and a material extraction component 33. One end of the third valve body 31 is connected to the first material bucket 1 via a pipe, and the other end of the third valve body 31 is connected to one end of the material extraction component 33 via a pipe. One end of the fourth valve body 32 is connected to the other end of the material extraction component 33 via a pipe, and the other end of the fourth valve body 32 is connected to the first valve body 31 via a pipe.

[0027] In this embodiment, the material extraction component 33 is similar to a syringe structure. When the third valve body 31 is open, it extracts material from the first material container 1. After the third valve body 31 is closed and the fourth valve body 32 is opened, the material extraction component 33 pushes a quantitative amount of material to the first valve body 51. The double valve body structure forms a closed metering chamber, which, in conjunction with the material extraction component 33, reduces the error of a single feeding. The segmented opening and closing design effectively prevents siphoning and backflow phenomena. It should be understood that the second discharging mechanism 4 and the first discharging mechanism 3 can have the same structure to achieve the corresponding functions.

[0028] In some embodiments, such as Figure 6 As shown, the material extraction assembly 33 includes a rotary motor 331, a lead screw 332, a connecting block 333, a piston rod 334, and a storage tube 335. The output end of the rotary motor 331 is fixedly connected to the lead screw 332. The lead screw 332 is threadedly connected to one end of the connecting block 333. The other end of the connecting block 333 is fixedly connected to one end of the piston rod 334. The other end of the piston rod 334 is piston-connected to the storage tube 335.

[0029] In this embodiment, the rotary motor 331 drives the lead screw 332 to rotate, which in turn pushes the connecting block 333 to move linearly through the thread, causing the piston rod 334 to precisely extend and retract within the storage tube 335. When the piston rod 334 retracts, it opens the third valve body 31 to draw in material; when it advances, it closes the third valve body 31 and opens the fourth valve body 32 to discharge the material to a constant volume. The lead screw transmission mechanism converts rotational motion into millimeter-level linear displacement, and in conjunction with the piston structure, it achieves higher single-feeding accuracy.

[0030] In some embodiments, one end of the piston rod 334 is provided with a groove with an inner diameter larger than that of the lead screw 332, and a threaded hole on the connecting block 333 that is threadedly connected to the lead screw 332 extends from one end of the connecting block 333 to the other end.

[0031] In this embodiment, the enlarged groove at the end of the piston rod 334 allows the lead screw 332 to rotate freely within the through threaded hole of the connecting block 333, while restricting the connecting block 333 to move only axially, eliminating the frictional loss of the traditional anti-rotation mechanism, improving transmission efficiency, and the fully through threaded hole structure avoids stress concentration, and the fit clearance can automatically compensate for wear.

[0032] In some embodiments, such as Figure 6 As shown, a sealing gasket 336 is provided at the connection between the piston rod 334 and the storage tube 335. The sealing gasket 336 is sleeved on the piston rod 334, and the outer side of the sealing gasket 336 abuts against the inner wall of the storage tube 335.

[0033] In this embodiment, the sealing gasket 336 forms a dynamic seal between the piston rod 334 and the storage tube 335, which allows the piston rod 334 to reciprocate while preventing material leakage.

[0034] In some embodiments, such as Figure 5 As shown, a three-way pipe 34 is provided between one end of the third valve body 31 and the first material bucket 1. The first material bucket 1 is connected to the first end of the three-way pipe 34, the second end of the three-way pipe 34 is connected to the discharge valve 35, and the third end of the three-way pipe 34 is connected to one end of the third valve body 31.

[0035] In this embodiment, when the third valve body 31 is open and the discharge valve 35 is closed, the system draws material normally from the first material bucket 1; when rapid emptying or cleaning is required, the material can be discharged directly by opening the discharge valve 35.

[0036] In some embodiments, such as Figure 7As shown, the first material barrel 1 is connected to a feeding mechanism 7. The feeding mechanism 7 includes a vacuuming component and a feeding component. The vacuuming component includes a vacuum pump and a pipeline connection valve 71. One end of the pipeline connection valve 71 is connected to the top pipeline of the first material barrel 1, and the other end of the pipeline connection valve 71 is connected to the vacuum pump pipeline. The feeding assembly includes a feeding pipe 72 and a feeding valve 73 and a feeding funnel 74 connected to the feeding pipe 72. One end of the feeding pipe 72 is connected to a side pipe of the first material barrel 1, and the feeding funnel 74 is connected to the feeding valve 73 near the first material barrel 1.

[0037] In this embodiment, the vacuum pump is a common component and is therefore not shown in the figure. The vacuum pump creates a negative pressure environment by drawing a vacuum into the first material container 1 through the pipeline connection valve 71. After the feed valve 73 is opened, the material is rapidly drawn into the material container from the feed funnel 74 through the feed pipe 72 under the action of the air pressure difference. The vacuum feeding method can avoid the stratification phenomenon caused by traditional mechanical conveying; the pipeline connection valve 71 is located at the top of the first material container 1 to prevent the material from being sucked back into the vacuum pipeline due to the air pressure difference. It should be understood that the second material container 2 is equipped with the same feeding component as the first material container 1.

[0038] In some embodiments, such as Figure 1 As shown, it also includes a control panel 8, which is electrically connected to the mixer 5, the first discharge mechanism 3, and the second discharge mechanism 4.

[0039] In this embodiment, the control panel 8 synchronously controls the rotation speed of the mixer 5, the start / stop and flow rate of the first discharge mechanism 3 and the second discharge mechanism 4 through electrical signals, thereby realizing multi-mechanism linkage control and automated batching.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A two-liquid automatic proportioning machine, characterized in that, It includes a first material tank, a second material tank, a first discharge mechanism, a second discharge mechanism, and a mixer. The mixer includes a first valve body, a second valve body, a discharge pipe, a three-way connector, and a stirring assembly. The first material bucket is connected to one end of the pipe of the first discharge mechanism, and the other end of the first discharge mechanism is connected to one end of the pipe of the first valve body; the second material bucket is connected to one end of the pipe of the second discharge mechanism, and the other end of the second discharge mechanism is connected to one end of the pipe of the second valve body. The other end of the first valve body, the other end of the second valve body, and one end of the discharge pipe are respectively connected to the three-end pipes of the three-way connector; the driving end of the stirring assembly is fixedly connected to the fourth end of the three-way connector, and the output end of the stirring assembly passes through the fourth end of the three-way connector and is placed inside the discharge pipe, and the diameter of the output end of the stirring assembly is smaller than the inner diameter of the discharge pipe.

2. The automatic two-liquid mixing machine according to claim 1, characterized in that, The stirring assembly includes a stirring motor, a transmission rod, and a stirring paddle. The stirring motor is fixedly connected to the fourth end of the three-way connector. One end of the transmission rod is fixedly connected to the output end of the stirring motor. The stirring paddle is placed inside the discharge pipe. The other end of the transmission rod passes through the fourth end of the three-way connector and is fixedly connected to the stirring paddle. The transmission rod and the three-way connector are rotatably connected by a rotary bearing.

3. The automatic two-liquid mixing machine according to claim 1, characterized in that, It also includes a cleaning material tank, a first three-way valve is provided between the first discharge mechanism and the first valve body, the first end and the second end of the first three-way valve are respectively connected to the first discharge mechanism and the first valve body pipeline; a second three-way valve is provided between the second discharge mechanism and the second valve body, the first end and the second end of the second three-way valve are respectively connected to the second discharge mechanism and the second valve body pipeline; the cleaning material tank is connected to the third end of the first three-way valve and the third end of the second three-way valve pipeline.

4. The automatic two-liquid mixing machine according to claim 1, characterized in that, The first discharge mechanism includes a third valve body, a fourth valve body, and a material extraction component. One end of the third valve body is connected to the first material bucket pipe, and the other end of the third valve body is connected to one end of the material extraction component pipe. One end of the fourth valve body is connected to the other end of the material extraction component pipe, and the other end of the fourth valve body is connected to the first valve body pipe.

5. The automatic two-liquid mixing machine according to claim 4, characterized in that, The material extraction assembly includes a rotary motor, a lead screw, a connecting block, a piston rod, and a storage tube. The output end of the rotary motor is fixedly connected to the lead screw. One end of the lead screw is threadedly connected to one end of the connecting block. The other end of the connecting block is fixedly connected to one end of the piston rod. The other end of the piston rod is piston-connected to the storage tube.

6. The automatic two-liquid mixing machine according to claim 5, characterized in that, One end of the piston rod is provided with a groove with an inner diameter larger than that of the lead screw, and the threaded hole on the connecting block that is threaded to the lead screw extends from one end of the connecting block to the other end.

7. The automatic two-liquid mixing machine according to claim 5, characterized in that, A sealing gasket is provided at the connection between the piston rod and the storage tube. The sealing gasket is sleeved on the piston rod, and the outer side of the sealing gasket abuts against the inner wall of the storage tube.

8. The automatic two-liquid mixing machine according to claim 4, characterized in that, A three-way pipe is also provided between one end of the third valve body and the first material bucket. The first material bucket is connected to the first end of the three-way pipe, the second end of the three-way pipe is connected to a discharge valve, and the third end of the three-way pipe is connected to one end of the third valve body.

9. The automatic two-liquid mixing machine according to claim 1, characterized in that, The first material hopper is connected to a feeding mechanism, which includes a vacuuming component and a feeding component. The vacuuming component includes a vacuum pump and a pipeline connection valve. One end of the pipeline connection valve is connected to the top pipeline of the first material hopper, and the other end of the pipeline connection valve is connected to the vacuum pump pipeline. The feeding assembly includes a feeding pipe and a feeding valve and a feeding funnel connected to the feeding pipe. One end of the feeding pipe is connected to a side pipe of the first material barrel, and the feeding funnel pipe is connected between the first material barrel and the feeding valve.

10. The automatic two-liquid mixing machine according to claim 1, characterized in that, It also includes a control panel, which is electrically connected to the mixer, the first discharge mechanism, and the second discharge mechanism.

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