A mixing bag with a measuring scale

Abstract

This utility model provides a mixing bag with a measuring scale, belonging to the field of solvent mixing technology. The mixing bag includes a flexible bag body made of transparent material with a measuring scale printed on its surface. The bag body is characterized by having grips on both sides, with a thickened inner lining layer along the inner edge of each grip; a liquid filling opening with a sealing structure at the top; and a liquid outlet at the bottom, with a conical nozzle sealing component. The flexible bag body is made of a multi-layer co-extruded composite film, comprising an outer wear-resistant layer, a middle barrier layer, and an inner corrosion-resistant layer. The measuring scale consists of raised or recessed graduations distributed along the height of the bag, with the graduation spacing corresponding to fixed volume units. This utility model solves the problems of cumbersome operation procedures and high tool dependence when mixing small batches of chemical solvents.

Description

Technical Field

[0001] This utility model belongs to the field of solvent mixing technology, and specifically relates to a mixing liquid bag with a measuring scale. Background Technology

[0002] In small-batch solvent mixing scenarios in fields such as chemical coatings, electronic silicone, and resin materials, such as the ratio of varnish base material and curing agent, the blending of silicone additives, and the preparation of resin premixes, traditional decentralized operation processes are still relied upon. Specifically, operators need to measure each component solvent separately using glass or plastic measuring cups and manually transfer it to the mixing cup multiple times. If the viscosity of the mixture is high, it is also necessary to stir it repeatedly with a stirring rod or use a small electric stirring device to assist in mixing. After mixing, the mixture needs to be transferred to a storage container again, or the mixing cup can be directly poured and added to the work station by hand.

[0003] This operating mode has obvious drawbacks. First, it is highly dependent on tools, requiring at least 3-5 tools such as measuring cups, stirring cups, and stirring rods for a single mixing operation. The operation chain is long, and the measurement, transfer, and mixing steps alone take 10-15 minutes, resulting in low efficiency. Second, the cleaning cost is high. If non-disposable measuring cups and stirring cups are used, they need to be repeatedly cleaned with special solvents after use, which not only consumes additional reagents but also may cause contamination of the next mixing operation due to residual solvents, or waste of materials due to incomplete cleaning. Third, the stirring cup lacks a precise liquid dispensing structure, making it difficult to control the flow rate when pouring, and it is easy to cause local accumulation or splashing. In summary, the current operation mode for small-batch mixing of chemical solvents is cumbersome and highly dependent on tools, and cannot meet the needs of efficient on-demand mixing. Utility Model Content

[0004] In view of this, the present invention provides a mixing bag with a measuring scale, which can solve the problems of cumbersome operation procedures and high tool dependence when mixing small batches of chemical solvents.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a mixed liquid bag with a measuring scale, comprising a flexible bag body, the flexible bag body being made of transparent material and having a measuring scale printed on its surface, wherein the flexible bag body is provided with grip portions on both sides, the inner edge of the grip portions being provided with a thickened inner lining layer, the top of the flexible bag body being provided with a liquid filling opening and a sealing structure, and the bottom of the flexible bag body being provided with a liquid outlet, the liquid outlet being provided with a conical nozzle sealing component.

[0007] The technical advantages of the mixing bag with a measuring scale provided by this utility model are as follows: By using a transparent flexible liquid bag as the mixing container for the solvent, it is convenient to further observe the liquid level to accurately control the quantity with the measuring scale; the design of the two grips combined with the thickened inner lining makes it easy to hold and add liquid, solving the problem of the flexible material's characteristics affecting the liquid injection; the opening on the bag body, combined with the sealing structure and the conical nozzle sealing component, realizes the filling sealing and liquid dispensing control respectively, integrating the functions of metering, easy holding operation, uniform mixing, sealed storage, and controlled liquid dispensing, and effectively solves the problem of some solvents being exposed to the outside environment during the mixing process, causing discomfort to the operator due to inhalation of odors caused by inadequate protection; it replaces the traditional solvent mixing method; it eliminates the need for additional measuring cups and stirring containers, directly solving the core problem of existing mixing processes having many tools and cumbersome steps.

[0008] Based on the above technical solution, the mixed liquid bag with measuring scale of this utility model can be further improved as follows:

[0009] The flexible bag is made of a multi-layer co-extruded composite film, which includes an outer wear-resistant layer, a middle barrier layer, and an inner corrosion-resistant layer.

[0010] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the outer wear-resistant layer of the multi-layer co-extruded composite film, such as PET, provides scratch protection; the middle barrier layer, such as EVOH, prevents solvent evaporation; and the inner corrosion-resistant layer, such as LDPE, resists chemical erosion. It can adapt to the properties of chemical solvents such as varnish and silicone, avoid bag damage or solvent penetration, and ensure the safety and purity of the mixing process.

[0011] Furthermore, the measuring scale consists of raised or recessed graduations distributed along the height of the bag, with the graduation spacing corresponding to a fixed volume unit.

[0012] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the raised or recessed scale is more wear-resistant than the printed scale, which helps to maintain the measurement accuracy, avoids dosage errors caused by scale detachment, ensures accurate multi-component solvent ratio, and solves the problem of easy blurring of existing printed scales.

[0013] Furthermore, the sealing structure includes sealing strips on both sides and limiting sealing clips. The sealing strips on both sides are combined to close the liquid filling opening and cooperate with the limiting sealing clips to achieve a secondary seal.

[0014] The beneficial effects of adopting the above-mentioned improved solution are as follows: the two-stage sealing structure, which uses a sealing strip for initial sealing and a limiting sealing clip for secondary fixation, is more reliable than a single seal, further preventing leakage caused by pressure inside the bag during kneading and mixing, and improving operational safety; in addition, the limiting sealing clip can be reused, which improves the practicality of the design.

[0015] Furthermore, the limiting sealing clip and the flexible bag body are separate structures, and the liquid filling opening is provided with a closed protrusion above the sealing strip for adapting to the limiting sealing clip.

[0016] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a closed protrusion to determine the clamping position of the limiting sealing clip, it is easier to stabilize the secondary seal and improve the sealing efficiency.

[0017] Furthermore, the sealing protrusion is provided on the extension of the top opening of the flexible bag body, which is used to make the limiting sealing clip correspond to its position to achieve secondary sealing and fixation.

[0018] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a closed protrusion in the extension of the liquid filling opening, the limiting seal clip has sufficient sealing position, avoiding the failure of the clip seal and further enhancing the reliability of the secondary seal.

[0019] Furthermore, the sealing structure includes a liquid inlet and a circular sealing cap. The bottom end of the liquid inlet is heat-sealed to the top end of the flexible bag body, and the circular sealing cap is detachably connected to the liquid inlet via a threaded structure.

[0020] The beneficial effects of adopting the above-mentioned improved solution are as follows: the sealing structure adopts a liquid inlet with a threaded circular sealing cap, which is suitable for scenarios where different solvents need to be added multiple times. The threaded structure can be repeatedly opened and closed and is tightly sealed, solving the problem that the single-sealing structure cannot be repeatedly added, thus expanding the applicable scenarios of the solution.

[0021] Furthermore, the conical nozzle sealing component includes a conical liquid outlet nozzle and a conical sealing cap. The conical liquid outlet nozzle is heat-sealed to the liquid outlet of the flexible bag body. The conical sealing cap and the conical liquid outlet nozzle are detachably connected by a threaded structure.

[0022] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the flow rate and landing point of the liquid can be precisely controlled by the conical liquid outlet, and the threaded conical sealing cap is easy to open and close quickly, which can meet the needs of some precise feeding and slow feeding.

[0023] Furthermore, a sealing flap is provided at one end of the conical liquid outlet near the flexible bag body, and an X-shaped groove is provided on the sealing flap.

[0024] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a sealing flap at the conical liquid outlet, the liquid can be discharged by the solvent pressure when the bag is squeezed and the slot is automatically closed after the squeezing stops, thus preventing residual solvent from dripping.

[0025] Furthermore, the sealing flap is made of rubber.

[0026] The beneficial effects of adopting the above-mentioned improvement scheme are: the rubber sealing flap has good elasticity, ensuring smooth opening and closing of the X-shaped slot.

[0027] Compared with existing technologies, the advantages of this utility model's mixing bag with a measuring scale are as follows: the transparent, flexible bag body combined with the wear-resistant measuring scale allows for intuitive and precise control of component dosages without the need for an additional measuring cup, avoiding ratio deviations caused by wear of printed scales; the grips with thickened inner linings on both sides enhance hand stability. The sealed structure design, such as a sealing strip combined with a limiting sealing clip or a threaded sealing structure like the inlet nozzle and round cap, is suitable for single-use or multiple-use scenarios, preventing leakage during kneading and mixing; the conical outlet nozzle with an X-shaped groove on the rubber sealing flap allows for precise flow control during dispensing and prevents residual leakage after dispensing stops. The overall solution eliminates the need for stirring rods, stirring cups, and other tools; its disposable nature eliminates cleaning steps; the multi-layer composite membrane meets the requirements for corrosion resistance and anti-evaporation of chemical solvents, significantly simplifying the operation process, reducing tool dependence and cleaning costs, while improving metering accuracy and operational safety, fully meeting the needs for efficient and accurate instant mixing. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of a first embodiment of a mixing bag with a measuring scale;

[0030] Figure 2 A schematic diagram of a second embodiment of a mixing bag with a measuring scale;

[0031] Figure 3 A top view of the conical dispensing nozzle of a mixing bag with a measuring scale;

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 10. Flexible bag body; 11. Grip part; 12. Thickened inner lining layer; 13. Liquid filling opening; 14. Liquid outlet; 15. Conical nozzle sealing component; 16. Sealing strip; 17. Limiting sealing clip; 18. Sealing protrusion; 19. Extension part; 20. Liquid inlet; 21. Circular sealing cap; 22. Conical liquid outlet; 23. Conical sealing cap; 24. Sealing flap. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0035] like Figure 1 As shown in Figure 3, this is the first embodiment of a mixed liquid bag with a measuring scale provided by the present invention. In this embodiment, it includes a flexible bag body 10, which is made of transparent material and has a measuring scale printed on its surface. The flexible bag body has a gripping part 11 on both sides, and a thickened inner lining layer 12 is provided on the inner edge of the gripping part. The top of the flexible bag body has a liquid filling opening 13 and a sealing structure. The bottom of the flexible bag body has a liquid outlet 14, and a conical nozzle sealing component 15 is provided at the liquid outlet.

[0036] In the above technical solution, the flexible bag body is made of a multi-layer co-extruded composite film, which includes an outer wear-resistant layer, a middle barrier layer and an inner corrosion-resistant layer.

[0037] Furthermore, in the above technical solution, the measuring scale is a raised or recessed scale distributed along the height of the bag, and the scale spacing corresponds to a fixed volume unit.

[0038] The following is a specific implementation method: the outer layer is made of 12μm thick PET wear-resistant layer, the middle layer is made of 15μm thick EVOH barrier layer, and the inner layer is made of 80μm thick LDPE corrosion-resistant layer. The overall size of the bag is 20cm×30cm, which can hold a maximum of 2000ml of mixed liquid. The measuring scale is made of raised graduations made by molding process, with a raised height of 0.3mm, distributed along the height of the bag. The graduation spacing corresponds to 1ml volume, and the measuring range is 500-2000ml. The volume value, such as 500ml and 1000ml, is printed next to the graduation line to ensure clear reading under different lighting conditions. The grip is located in the middle of both sides of the bag, with a width of 3cm and a length of 8cm. The thickened inner lining is made of 1mm thick EVA material, which is bonded to the bag by heat pressing. The surface of the inner lining has fine anti-slip texture with a texture depth of 0.1mm.

[0039] Furthermore, in the above technical solution, the sealing structure includes sealing strips 16 on both sides and limiting sealing clips 17. The sealing strips on both sides are combined to close the liquid filling opening and cooperate with the limiting sealing clips to achieve a secondary seal.

[0040] Furthermore, in the above technical solution, the limiting sealing clip and the flexible bag body are separate structures, and the liquid filling opening is located above the sealing strip and is provided with a closed protrusion 18 for adapting to the limiting sealing clip.

[0041] Furthermore, in the above technical solution, the sealing protrusion is set on the extension 19 of the top opening of the flexible bag body, which is used to make the limiting sealing clip correspond to its position to achieve secondary sealing and fixation.

[0042] The following is a specific implementation method: The sealing strip is made of PE material and includes sealing strip A and sealing strip B, which are heat-sealed and fixed along both sides of the liquid filling opening; the limiting sealing clip is made of PP material and has a groove on the bottom side that matches the sealing protrusion, one end of which can be opened and closed and is provided with a buckle structure; the sealing protrusion is made of PE material and is located at the top of the liquid filling opening, with the length of the extension being at least 2cm; the sealing strip is squeezed to achieve primary sealing, and the limiting sealing clip is closed to achieve secondary sealing.

[0043] Furthermore, in the above technical solution, the conical nozzle sealing component includes a conical liquid outlet 22 and a conical sealing cap 23. The conical liquid outlet is heat-sealed to the liquid outlet of the flexible bag body; the conical sealing cap and the conical liquid outlet are detachably connected by a threaded structure.

[0044] Furthermore, in the above technical solution, a sealing flap 24 is provided at the end of the conical liquid outlet near the flexible bag body, and an X-shaped groove is provided on the sealing flap.

[0045] Furthermore, in the above technical solution, the sealing flap is made of rubber.

[0046] like Figure 2 As shown in Figure 3, this is the second embodiment of the technical solution. Unlike the first embodiment, it is adapted to the scenario of multiple liquid additions. The sealing structure includes a liquid inlet 20 and a circular sealing cap 21. The bottom end of the liquid inlet is heat-sealed to the top end of the flexible bag body, and the circular sealing cap and the liquid inlet are detachably connected by a threaded structure.

[0047] The following is a specific implementation method: the liquid inlet is made of PP material, with an inner diameter of 15mm and a height of 2cm. The bottom end is fixed to the top of the bag body by heat sealing process; the heat sealing width is 5mm to ensure no leakage; the circular sealing cap is made of PP material, with an M20 specification thread on the inner wall to match the thread on the outer wall of the liquid inlet. After the cap is closed, it can be further tightened and sealed by rotation.

[0048] Specifically, the principle of this utility model is as follows: During use, select a flexible bag with the appropriate sealing structure according to the feeding requirements. In a single-feeding scenario, open the limiting sealing clip and sealing strip, hold the bag to stabilize it, observe the liquid level through the transparent bag, and pour in each component solvent according to the measuring scale to achieve precise proportioning. For multiple feedings, unscrew the circular sealing cap of the inlet nozzle, add solvent in stages, and then reseal. After sealing, hold the thickened inner lining on both sides of the bag and repeatedly knead it. The flexibility of the bag allows the internal solvent to flow and mix, eliminating the need for additional stirring tools. During kneading, the secondary seal or threaded seal structure resists internal pressure, preventing leakage. When dispensing, unscrew the conical sealing cap and gently squeeze the bag. The solvent pressure opens the X-shaped groove of the sealing flap, allowing the mixture to flow precisely out along the conical outlet nozzle, suitable for small-dose or directional feeding scenarios. After stopping squeezing, the elasticity of the rubber sealing flap automatically closes the groove, preventing residual solvent dripping. No additional container transfer is required throughout the process, achieving integrated operation from metering and mixing to controlling dispensing.

Claims

1. A mixed solution bag with a measuring scale, comprising a flexible bag body, the flexible bag body being transparent and having a measuring scale printed on the surface, characterized in that, The flexible bag has grips on both sides, and a thickened inner lining layer is provided on the inner edge of the grips. The top of the flexible bag has a liquid filling opening and a sealing structure. The bottom of the flexible bag has a liquid outlet, and a conical nozzle sealing component is provided at the liquid outlet.

2. The mixed solution bag with a metering scale according to claim 1, characterized in that, The flexible bag is made of a multi-layer co-extruded composite film, which includes an outer wear-resistant layer, a middle barrier layer, and an inner corrosion-resistant layer.

3. The mixed solution bag with a metering scale according to claim 2, characterized in that, The measuring scale consists of raised or recessed graduations distributed along the height of the bag, with the graduation spacing corresponding to a fixed volume unit.

4. The mixed solution bag with a metering scale according to claim 3, characterized in that, The sealing structure includes sealing strips on both sides and limiting sealing clips. The sealing strips on both sides are combined to close the liquid filling opening and cooperate with the limiting sealing clips to achieve a secondary seal.

5. The mixed solution bag with a metering scale according to claim 4, wherein, The limiting sealing clip and the flexible bag body are separate structures, and the liquid filling opening is provided with a closed protrusion above the sealing strip for adapting to the limiting sealing clip.

6. The mixed solution bag with a metering scale according to claim 5, wherein, The sealing protrusion is provided on the extension of the top opening of the flexible bag body, and is used to make the limiting sealing clip correspond to its position to achieve secondary sealing and fixation.

7. The mixed solution bag with a metering scale according to claim 3, characterized in that, The sealing structure includes a liquid inlet and a circular sealing cap. The bottom end of the liquid inlet is heat-sealed to the top end of the flexible bag body, and the circular sealing cap is detachably connected to the liquid inlet via a threaded structure.

8. A mixing bag with a measuring scale according to any one of claims 6 or 7, characterized in that, The conical nozzle sealing component includes a conical liquid outlet and a conical sealing cap. The conical liquid outlet is heat-sealed to the liquid outlet of the flexible bag. The conical sealing cap and the conical liquid outlet are detachably connected by a threaded structure.

9. The mixed solution bag with a metering scale according to claim 8, characterized by, The conical liquid outlet is provided with a sealing flap near one end of the flexible bag body, and the sealing flap has an X-shaped groove.

10. The mixed solution bag with a metering scale according to claim 9, wherein, The sealing flap is made of rubber.

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