Liquid metal injection weighing system

Abstract

The utility model relates to the technical field of liquid weighing, in particular to a liquid metal injection weighing system, which comprises a storage device, a moving device and a weighing device, and is characterized in that the storage device comprises a storage tank for storing liquid metal; the moving device comprises a moving cart and a lifting table, the lifting table is connected to the upper portion of the moving cart, and the storage tank is installed on the lifting table; the storage device is communicated with a liquid conveying pipeline; the liquid conveying pipeline is connected with a funnel tank; the funnel tank is communicated with a first output pipeline provided with a first switch valve and a second output pipeline provided with a second switch valve, the weighing device is located below the output end of the first output pipeline and the output end of the second output pipeline, and the opening degree of the first switch valve is larger than that of the second switch valve. The flow is controlled through the switch valves with different opening degrees of the double output pipelines, and efficient and accurate weighing is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid weighing technical field especially relates to a liquid metal injection weighing system. BACKGROUND

[0002] Liquid metal (such as gallium-based alloy) is widely used in the fields of semiconductor, flexible electronics, thermal management, etc., and its accurate weighing and safe injection are key links in the production process. However, the existing liquid metal weighing technology still has the following defects:

[0003] Traditional manual injection relies on the experience of operators, which cannot guarantee the injection efficiency and is prone to cause over-injection or under-injection. The existing automatic system mostly uses a single valve to control the flow, and the large-flow mode is prone to over-injection due to the closing lag, while the small-flow mode has improved accuracy but low efficiency, which is difficult to balance various production needs.

[0004] Liquid metal is prone to mix with oxidation residues or impurities during storage and transportation, and the existing device often lacks residue treatment design, so the residues directly enter the weighing link, resulting in a decrease in the performance of the final product.

[0005] Liquid metal is prone to oxidation or volatilization when exposed to air, and the existing open weighing environment cannot avoid the contact of operators with harmful substances, and lacks integrated cleaning function, so the residual metal may contaminate the equipment and environment.

[0006] Therefore, there is an urgent need for a liquid metal processing system that integrates efficient injection, accurate weighing, residue isolation and safety protection to solve the above problems. INVENTION CONTENTS

[0007] The utility model aims at the deficiency of prior art, and develops a liquid metal injection weighing system, which realizes the control of flow by different opening degree on-off valves of double output pipelines, realizes efficient and accurate weighing, and improves the quality of liquid metal through the deslagging function of the bottom tank and the collection box.

[0008] The technical scheme for solving the technical problem of the utility model is as follows:

[0009] The application provides a liquid metal injection weighing system, which comprises a storage device, a moving device and a weighing device.

[0010] The storage device comprises a storage tank for storing liquid metal.

[0011] The moving device comprises a moving cart and a lifting platform, the lifting platform is connected above the moving cart, and the storage tank is installed on the lifting platform.

[0012] The storage device is connected with a liquid delivery pipeline, and the liquid delivery pipeline is connected with a hopper tank.

[0013] The funnel tank is communicated with a first output pipeline provided with a first switch valve and a second output pipeline provided with a second switch valve, the weighing device is located below the output ends of the first output pipeline and the second output pipeline, and the opening degree of the first switch valve is greater than that of the second switch valve, so that the liquid flow rate conveyed to the weighing device in the first output pipeline is greater than that in the second output pipeline.

[0014] As an improvement of the above scheme, the mobile trolley comprises a bottom plate and a push rod connected to one side of the bottom plate, and a moving wheel is arranged below the bottom plate, and the lifting platform is arranged above the bottom plate.

[0015] As an improvement of the above scheme, the bottom of the storage tank is communicated with a bottom tank, the liquid conveying pipeline is communicated with the upper part of the bottom tank, and the bottom of the bottom tank is communicated with a residue conveying pipeline.

[0016] As an improvement of the above scheme, a collecting box is connected below the funnel tank, and a third switch valve is arranged between the funnel tank and the collecting box.

[0017] As an improvement of the above scheme, the top end of the storage tank and the top end of the funnel tank are communicated through a connecting pipe.

[0018] As an improvement of the above scheme, the weighing device comprises an electronic scale and a beaker, a support frame is arranged above the electronic scale, a hole adapted to the beaker is arranged on the support frame, the beaker is placed on the electronic scale through the hole, and the output ends of the first output pipeline and the second output pipeline are extended above the opening of the beaker.

[0019] As an improvement of the above scheme, the liquid metal injection weighing system further comprises a glove box, the moving device and the storage device are located outside the glove box, and the weighing device is located in the glove box.

[0020] As an improvement of the above scheme, the liquid metal injection weighing system further comprises a cleaning device, the cleaning device comprises a cleaning agent conveying pipeline and a cleaning agent storage tank, the cleaning agent conveying pipeline extends into the glove box and is connected with a spray head at the output end, and the input end of the cleaning agent conveying pipeline is connected with the cleaning agent storage tank.

[0021] As an improvement of the above scheme, the tank bodies of the storage tank, the bottom tank and the funnel tank are each wrapped with a heat preservation layer.

[0022] As an improvement of the above scheme, an electromagnetic valve is connected to the liquid conveying pipeline.

[0023] Compared with the prior art, the above scheme has the following advantages or beneficial effects:

[0024] 1. The unique dual output pipeline (first output pipeline and second output pipeline) design realizes different flow delivery through different opening degree of the switch valve: large flow output can make the liquid quickly approach the target amount, shorten the liquid injection time, improve the overall weighing efficiency, and reduce the production cost; small flow output realizes precise liquid supplement, greatly improving the weighing accuracy. The design realizes the phased injection of fast liquid injection and slow liquid supplement, which guarantees the weighing efficiency and improves the weighing accuracy.

[0025] 2. The bottom tank, residue conveying pipeline and collection box design effectively removes solid residues, ensures the purity of liquid metal, and improves the quality of liquid metal.

[0026] 3. The cooperation of the cleaning device and the glove box avoids the operator from contacting harmful substances, and simply and conveniently realizes the cleaning of residual metal, avoiding the pollution of residual metal to the equipment and the environment. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application.

[0028] Figure 1 Structure diagram of the liquid metal injection weighing system of the present embodiment Figure 1 .

[0029] Figure 2 Structure diagram of the liquid metal injection weighing system of the present embodiment Figure 2 .

[0030] Figure 3 Structure diagram of the liquid metal injection weighing system of the present embodiment Figure 3 .

[0031] Figure 4 Structure diagram of the liquid metal injection weighing system of the present embodiment Figure 4 .

[0032] Figure 5 Structure diagram of the liquid metal injection weighing system of the present embodiment Figure 5 .

[0033] In the figure: 1 glove box, 2 storage device, 21 storage tank, 22 bottom tank, 23 liquid conveying pipeline, 231 electromagnetic valve, 24 residue conveying pipeline, 3 moving device, 31 bottom plate, 32 push rod, 33 moving wheel, 34 lifting platform, 4 weighing device, 41 electronic scale, 42 beaker, 43 support frame, 5 cleaning device, 51 cleaning agent conveying pipeline, 52 spray head, 6 funnel tank, 61 collection box, 7 first output pipeline, 71 first switch valve, 8 second output pipeline, 81 second switch valve, 9 connecting pipe, 10 sealing flange. Detailed Implementation

[0034] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present invention omits descriptions of well-known components and processing techniques and processes to avoid unnecessarily limiting the present invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Example 1

[0036] See Figures 1-5 This embodiment provides a liquid metal injection and weighing system, including a glove box 1, a storage device 2, a moving device 3, and a weighing device 4. The glove box 1 is in an inert gas environment, the moving device 3 and the storage device 2 are located outside the glove box 1, and the weighing device 4 is located inside the glove box 1.

[0037] Storage device 2 includes a storage tank 21 for storing liquid metal (e.g., liquid gallium), with a bottom tank 22 connected to the bottom of storage tank 21. Mobility device 3 includes a trolley and a lifting platform 34. The trolley includes a base plate 31 and a push rod 32 connected to one side of the base plate 31. Casters 33 are located below the base plate 31. The lifting platform 34 is mounted above the base plate 31. Storage tank 21 is fixedly mounted on the lifting platform 34, allowing for vertical movement of storage tank 21.

[0038] The bottom tank 22 is provided with a liquid delivery pipeline 23 and a residue delivery pipeline 24. The residue delivery pipeline 24 is connected to the bottom of the bottom tank 22, and a manual switch valve is arranged on the residue delivery pipeline 24. The solid residue is often accumulated at the bottom of the bottom tank 22 due to gravity, and the solid residue in the storage tank 21 is discharged by opening the manual switch valve. The input end of the liquid delivery pipeline 23 is higher than the input end of the residue delivery pipeline 24, and the liquid delivery pipeline 23 can be connected to the upper part of the bottom tank 22 to ensure that the liquid delivered by the liquid delivery pipeline 23 contains as little solid residue as possible.

[0039] The liquid delivery pipeline 23 is sequentially provided with an electromagnetic valve 231, a sealing flange 10 and a funnel tank 6, and the liquid metal in the storage tank 21 is transported to the funnel tank 6 through the liquid delivery pipeline 23.

[0040] The funnel tank 6 is communicated with a first output pipeline 7 provided with a first switch valve 71 and a second output pipeline 8 provided with a second switch valve 81. A weighing device 4 is located below the output ends of the first output pipeline 7 and the second output pipeline 8, and the first output pipeline 7 and the second output pipeline 8 deliver the liquid metal to the weighing device 4 for weighing.

[0041] The first output pipeline 7 and the second output pipeline 8 have the same pipe diameter, the opening degree of the first switch valve 71 is greater than that of the second switch valve 81, so that the liquid flow in the first output pipeline 7 is greater than that in the second output pipeline 8. The first switch valve 71 can make the liquid flow to the weighing device 4 at a large flow rate, so that the liquid is quickly injected, and the efficiency of liquid weighing is improved. The second switch valve 81 can make the liquid flow to the weighing device 4 at a small flow rate, so that the amount of injected liquid can be accurately controlled without excessive flow, and the accuracy of liquid weighing is improved. Through the difference in opening degree of the first switch valve 71 and the second switch valve 81, the liquid is injected in stages of fast injection and slow injection, which ensures the weighing efficiency and improves the weighing accuracy.

[0042] Wherein:

[0043] A collecting box 61 is connected below the funnel tank 6. A third switch valve is arranged between the funnel tank 6 and the collecting box 61, and the solid residue in the funnel tank 6 flows into the collecting box 61 for collection by opening the third switch valve, further ensuring the purity of the liquid metal.

[0044] The top end of the storage tank 21 and the top end of the funnel tank 6 are communicated through a connecting pipe 9 to dynamically adjust the pressure difference between the storage tank 21 and the funnel tank 6, and maintain continuous and stable delivery of the liquid metal. The connecting pipe 9 is also provided with a sealing flange 10.

[0045] The weighing device 4 comprises an electronic scale 41 and a beaker 42, and a support frame 43 is arranged above the electronic scale 41, that is, the support frame 43 is not in contact with the electronic scale 41. The support frame 43 is provided with a hole matching the beaker 42, and the beaker 42 is arranged on the electronic scale 41 through the hole, so as to avoid shaking of the beaker 42. The output ends of the first output pipeline 7 and the second output pipeline 8 extend above the opening of the beaker 42, so as to avoid splashing of the liquid metal.

[0046] The liquid metal injection and weighing system of the embodiment further comprises a cleaning device 5, and the cleaning device 5 comprises a cleaning agent delivery pipeline 51 and a cleaning agent storage tank. The cleaning agent delivery pipeline 51 extends into the glove box 1 and is provided with a spray head 52 at the output end thereof. The input end of the cleaning agent delivery pipeline 51 is connected with the cleaning agent storage tank. The cleaning agent delivery pipeline 51 is also provided with the sealing flange 10.

[0047] The funnel tank 6, the weighing device 4 and the pipelines and the spray head 52 connected therewith are sealed in the glove box 1 through the sealing flange 10.

[0048] The tank bodies of the storage tank 21, the bottom tank 22 and the funnel tank 6 are all wrapped with a heat preservation layer, so as to preserve the liquid metal gallium.

[0049]

Embodiment Two

[0050] The embodiment is basically the same as the above-described embodiment, and the difference lies in that:

[0051] The liquid metal injection and weighing system of the embodiment further comprises a controller (specifically, a Siemens S7-414PLC controller can be used), and the electromagnetic valve 231, the first on-off valve 71, the second on-off valve 81 and the third on-off valve are all in communication connection with the controller. The controller is configured to control the opening and closing of the valves. For example, the controller can send opening and closing instructions to the valves through a preset hardware logic module (such as a PLC timer), so as to realize the opening and closing of the valves.

[0052] It should be noted that the controller in the present application only controls the valves based on the PLC control system, and the control of the valves based on the PLC control system is a quite mature technology in the prior art. The present embodiment does not expect or involve improvement of the controller itself or the control program or computer program. Any control technology that can realize the functions of the valve on-off of the present embodiment in the prior art can be applied to the present embodiment.

[0053] Although the specific embodiments of the utility model have been described in combination with the drawings, the description is not a limitation on the protection scope of the utility model. Various modifications or changes made by those skilled in the art on the basis of the technical solutions of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A liquid metal injection weighing system, characterized by: The system comprises a storage device, a moving device and a weighing device; The storage device comprises a storage tank for storing liquid metal; The moving device comprises a moving trolley and a lifting platform connected above the moving trolley, and the storage tank is installed on the lifting platform; The storage device is connected with a liquid delivery pipeline, and the liquid delivery pipeline is connected with a hopper tank; The hopper tank is connected with a first output pipeline provided with a first on-off valve and a second output pipeline provided with a second on-off valve, the weighing device is located below the output ends of the first and second output pipelines, the opening degree of the first on-off valve is greater than that of the second on-off valve, so that the liquid flow rate delivered to the weighing device in the first output pipeline is greater than that in the second output pipeline.

2. The liquid metal injection weighing system of claim 1, wherein: The moving trolley comprises a bottom plate and a push rod connected to one side of the bottom plate, and the bottom plate is provided below with moving wheels, and the lifting platform is installed above the bottom plate.

3. The liquid metal injection weighing system of claim 1, wherein: The bottom of the storage tank is connected with a bottom tank, the liquid delivery pipeline is connected to the upper part of the bottom tank, and the bottom of the bottom tank is connected with a residue delivery pipeline.

4. The liquid metal injection weighing system of claim 1, wherein: The hopper tank is connected below with a collection box, and a third on-off valve is arranged between the hopper tank and the collection box.

5. The liquid metal injection weighing system of claim 1, wherein: The top end of the storage tank and the top end of the hopper tank are connected through a connecting pipe.

6. The liquid metal injection weighing system of claim 5, wherein: The weighing device comprises an electronic scale and a beaker, the electronic scale is provided above with a support frame, the support frame is provided with a hole adapted to the beaker, the beaker is placed on the electronic scale through the hole, and the output ends of the first and second output pipelines extend above the opening of the beaker.

7. The liquid metal injection weighing system of claim 1, wherein: The liquid metal injection weighing system further comprises a glove box, the moving device and the storage device are located outside the glove box, and the weighing device is located inside the glove box.

8. The liquid metal injection weighing system of claim 7, wherein: The liquid metal injection weighing system further comprises a cleaning device, the cleaning device comprises a cleaning agent delivery pipeline and a cleaning agent storage tank, the cleaning agent delivery pipeline extends into the glove box and is connected at the output end with a spray head, and the input end of the cleaning agent delivery pipeline is connected with the cleaning agent storage tank.

9. The liquid metal injection weighing system of claim 3, wherein: The tank bodies of the storage tank, the bottom tank and the hopper tank are each wrapped with a heat preservation layer.

10. The liquid metal injection weighing system of claim 1, wherein: An electromagnetic valve is connected to the liquid delivery pipeline.

Images