Liquid raw material weighing device

Abstract

The utility model discloses a kind of liquid raw material weighing devices, including measuring cylinder and weighing base, measuring cylinder is installed in the upper wall of weighing base, the lower end of measuring cylinder outer wall is provided with wall cleaning mechanism, wall cleaning mechanism can clean the inner wall of measuring cylinder, wall cleaning mechanism includes cavity, air outlet, check valve, air inlet pipe and gas pipe, the inner cavity of measuring cylinder lower wall is provided with cavity, the bottom wall of measuring cylinder inner cavity is provided with air outlet, air outlet is communicated with cavity, check valve is installed in air outlet, check valve can block liquid raw material in measuring cylinder, the device is set by wall cleaning mechanism, after weighing is completed and discharges, external air pump is sent gas into cavity by gas pipe, air inlet pipe, gas is sprayed out by air outlet, since air outlet is inclined to the inner wall of measuring cylinder, the gas of spraying can flush the inner wall of measuring cylinder, can effectively clean the inner wall of measuring cylinder, reduce residual, improve the accuracy of batching, reduce raw material waste.

Description

Technical Field

[0001] This utility model relates to the field of raw material weighing technology, specifically a liquid raw material weighing device. Background Technology

[0002] In the production processes of industries such as chemicals, food, and pharmaceuticals, it is often necessary to accurately weigh liquid raw materials to ensure product quality and accurate proportions. Currently, after the commonly used liquid raw material weighing devices have finished weighing and discharging, residual liquid raw materials tend to adhere to the inner wall of the measuring cylinder. This is especially true for viscous liquid raw materials such as oils, where the residue problem is more prominent. This not only affects the accuracy of the proportions but also leads to the waste of raw materials. To address the problems existing in the prior art, this utility model proposes a liquid raw material weighing device, aiming to solve the problem that residual liquid raw materials after weighing affect the accuracy of the proportioning. Utility Model Content

[0003] The purpose of this invention is to provide a liquid raw material weighing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a liquid raw material weighing device, including a measuring cylinder and a weighing base, wherein the measuring cylinder is installed on the upper wall of the weighing base, and a wall cleaning mechanism is provided at the lower end of the outer wall of the measuring cylinder, the wall cleaning mechanism being able to clean the inner wall of the measuring cylinder; The wall cleaning mechanism includes a cavity, an air outlet, a check valve, an air inlet pipe, and an air delivery pipe. The inner cavity of the lower wall of the measuring cylinder is provided with a cavity, and the bottom wall of the inner cavity of the measuring cylinder is provided with an air outlet. The air outlet is connected to the cavity, and a check valve is installed in the air outlet. The check valve can block the liquid raw material in the measuring cylinder. An air inlet pipe is inserted into the lower side wall of the measuring cylinder and is connected to the cavity. An air delivery pipe is installed at the other end of the air inlet pipe and is connected to the output end of an external air pump.

[0005] As a preferred embodiment of this utility model, the check valve includes a fixed ring, a rubber baffle, and a spring. The fixed ring is installed on the inner wall of the vent hole, and the upper wall of the fixed ring is hinged with a rubber baffle to seal the vent hole. One end of the spring is installed on the lower wall of the rubber baffle, and the other end of the spring is installed on the inner wall of the fixed ring.

[0006] As a preferred embodiment of this invention, there are multiple air outlets, which are arranged in a ring array on the bottom wall of the inner cavity of the measuring cylinder, and the inclination direction of each air outlet points towards the inner wall of the measuring cylinder.

[0007] As a preferred embodiment of this invention, the outer wall of the measuring cylinder is equipped with a liquid level scale line, and one side of the liquid level scale line is marked with a numerical mark corresponding to the weight of the liquid raw material, and the numerical mark matches the volume of the measuring cylinder.

[0008] As a preferred embodiment of this utility model, the measuring cylinder is made of transparent glass, and the outer wall of the measuring cylinder is fitted with an anti-slip rubber sleeve, the surface of which is provided with anti-slip texture.

[0009] As a preferred embodiment of this utility model, the weighing base includes a base plate, an electronic scale, and a placement tray. The electronic scale is mounted on the upper wall of the base plate, and the placement tray is placed on the upper wall of the electronic scale. The measuring cylinder is placed on the placement tray.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This device incorporates a wall-cleaning mechanism. After weighing and discharging, an external air pump delivers gas into the cavity through the air supply pipe and air inlet pipe. The gas is then ejected through the air outlet. Since the air outlet is angled towards the inner wall of the measuring cylinder, the ejected gas can flush the inner wall of the measuring cylinder, effectively cleaning it, reducing residue, improving the accuracy of the proportioning, and reducing raw material waste. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this patent; Figure 2 This is a schematic diagram of the wall-cleaning mechanism of this patent; Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0012] In the diagram: 1 Measuring cylinder, 2 Weighing base, 3 Cleaning mechanism, 31 Cavity, 32 Air outlet, 33 Check valve, 34 Air inlet pipe, 35 Air delivery pipe, 4 Liquid level scale, 5 Anti-slip rubber sleeve, 331 Fixing ring, 332 Rubber baffle, 333 Spring, 21 Base plate, 22 Electronic scale, 23 Placement tray. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-3 This utility model provides a technical solution: In this technical solution, a liquid raw material weighing device includes a measuring cylinder 1 and a weighing base 2. The measuring cylinder 1 is installed on the upper wall of the weighing base 2, and a wall cleaning mechanism 3 is provided at the lower end of the outer wall of the measuring cylinder 1. The wall cleaning mechanism 3 can clean the inner wall of the measuring cylinder 1. The wall cleaning mechanism 3 includes a cavity 31, an air outlet 32, a check valve 33, an air inlet pipe 34, and an air delivery pipe 35. The inner cavity of the lower wall of the measuring cylinder 1 is provided with a cavity 31. The bottom wall of the inner cavity of the measuring cylinder 1 is provided with an air outlet 32, which is connected to the cavity 31. A check valve 33 is installed in the air outlet 32. The check valve 33 can block the liquid raw material in the measuring cylinder 1. An air inlet pipe 34 is inserted and installed on the lower side wall of the measuring cylinder 1. The air inlet pipe 34 is connected to the cavity 31. An air delivery pipe 35 is installed at the other end of the air inlet pipe 34 and is connected to the output end of an external air pump. In this technical solution, the cleaning mechanism 3 cleans the inner wall of the measuring cylinder 1 using gas pressure provided by an external air pump. After the liquid raw material in the measuring cylinder 1 has been weighed and poured out, when it is necessary to clean the inner wall of the measuring cylinder 1, the gas generated by the external air pump enters the cavity 31 through the air supply pipe 35 and the air inlet pipe 34, and then is ejected through the air outlet 32. The airflow can first push the rubber baffle 332 in the check valve 33 upward, so that the airflow is ejected from the air outlet 32, washing down the liquid raw material adhering to the inner wall of the measuring cylinder 1, effectively reducing residue; at the same time, the check valve 33 can prevent the liquid raw material from entering the cavity 31 and the air outlet 32 ​​during the weighing process, ensuring the normal operation of the weighing work. During weighing, the gas supply pipe 35 can be removed from the air inlet pipe 34. When the weighing is finished and the ingredients are being mixed, the gas supply pipe 35 can be put back on the outside of the air inlet pipe 34. The gas supply pipe 35 is a rubber tube and has an interference fit with the air inlet pipe 34. After it is put on the outside of the air inlet pipe 34, it will not fall off.

[0015] In some technical solutions, the check valve 33 includes a fixed ring 331, a rubber baffle 332, and a spring 333. The fixed ring 331 is installed on the inner wall of the vent 32. The upper wall of the fixed ring 331 is hinged to the rubber baffle 332, which can close the vent 32. One end of the spring 333 is installed on the lower wall of the rubber baffle 332, and the other end of the spring 333 is installed on the inner wall of the fixed ring 331.

[0016] In this technical solution, the check valve 33 achieves unidirectional conduction through a mechanical structure. During weighing, the spring 333 is in its natural state, ensuring that the rubber baffle 332 is tightly fitted above the fixing ring 331, thereby sealing the vent 32 and preventing liquid raw materials from seeping in. When the wall cleaning operation is performed, the gas pressure acts on the rubber baffle 332, causing it to overcome the elastic force of the spring 333 and rotate around the hinge point, opening the vent 32 and allowing the gas to be ejected smoothly. After the wall cleaning is completed, the gas pressure disappears, and the rebound force of the spring 333 causes the rubber baffle 332 to reset, sealing the vent 32 again.

[0017] In some technical solutions, there are multiple air outlets 32, and the multiple air outlets 32 are arranged in a ring array on the bottom wall of the inner cavity of the measuring cylinder 1, and the tilt direction of each air outlet 32 ​​is pointing towards the inner wall of the measuring cylinder 1.

[0018] In this technical solution, multiple air outlets 32 arranged in a ring array can flush the inner wall of the measuring cylinder 1 with gas from different directions, improving the comprehensiveness of cleaning. The design of each air outlet 32 ​​tilting towards the inner wall allows the ejected airflow to directly act on the inner wall surface, improving the wall cleaning effect. In this paper, the air outlet 32 ​​is set as an inclined opening at 45° to promote airflow rotation. The high-speed airflow will form a spiral vortex along the inner wall of the measuring cylinder. The shearing force generated by the vortex can peel off the attached grease film and blow it to the opening of the measuring cylinder 1 for discharge. Meanwhile, measuring cylinder 1 is made of glass with a polished inner wall and a surface roughness Ra≤0.8μm, which reduces the adhesion of grease. Combined with airflow flushing, it can achieve a wall cleaning effect of more than 99%.

[0019] In some technical solutions, a liquid level scale line 4 is installed on the outer wall of the measuring cylinder 1, and a numerical mark corresponding to the weight of the liquid raw material is marked on one side of the liquid level scale line 4. The numerical mark matches the volume of the measuring cylinder 1.

[0020] In this technical solution, the liquid level scale line 4 allows operators to intuitively read the volume of the liquid raw material, while the corresponding weight value label can directly obtain the weight information of the raw material without additional calculation, simplifying the operation process. Since the value label matches the volume of the measuring cylinder 1, the accuracy of weight reading is ensured. Operators can quickly determine whether the raw material has reached the required amount according to production needs, improving weighing efficiency.

[0021] In some technical solutions, the measuring cylinder 1 is made of transparent glass, and the outer wall of the measuring cylinder 1 is fitted with an anti-slip rubber sleeve 5, the surface of which is provided with anti-slip texture.

[0022] In this technical solution, the transparent glass measuring cylinder 1 allows operators to clearly observe the liquid level and state of the liquid raw material inside, and to keep track of the weighing situation in a timely manner. The anti-slip rubber sleeve 5 on the outside increases the friction between the hand and the measuring cylinder 1, which can effectively prevent slippage when picking up and moving the measuring cylinder 1, and improve the safety of operation. The anti-slip texture further enhances the anti-slip effect, and the rubber material has a certain cushioning effect, which can reduce the risk of damage to the measuring cylinder 1 when it is hit by a collision. In this article, the anti-slip rubber sleeve 5 is semi-circular, with glue coated on its inner side, and is installed on the outside of the measuring cylinder 1 by adhesive.

[0023] In some technical solutions, the weighing base 2 includes a base plate 21, an electronic scale 22 and a placement tray 23. The electronic scale 22 is installed on the upper wall of the base plate 21, and the placement tray 23 is placed on the upper wall of the electronic scale 22. The measuring cylinder 1 is placed on the placement tray 23.

[0024] In this technical solution, the base plate 21 provides stable support for the entire weighing base 2, ensuring the stability of the device during the weighing process. The electronic scale 22 can accurately measure the total weight of the measuring cylinder 1 and the liquid raw materials inside. The electronic scale 22 also has a tare function. After placing the empty measuring cylinder 1 on the placement tray 23 on the electronic scale 22, the scale 22 will return to zero by pressing the tare button. The electronic scale 22 in this article is existing technology and has been widely used in reality. Its tare function is also a mature technology, so it will not be described in detail in this article.

[0025] Working principle: When in use, first place the measuring cylinder 1 on the placement tray 23 of the weighing base 2, and zero the electronic scale 22 to eliminate the influence of the weight of the measuring cylinder 1 itself. Then, inject liquid raw materials into the measuring cylinder 1. The operator can make a preliminary judgment on the amount of raw materials by the liquid level scale line 4 and the corresponding weight value mark. At the same time, the electronic scale 22 displays the precise weight of the raw materials in real time until the required amount is reached. After weighing, move the measuring cylinder 1 to the discharge position, first pour out the liquid raw material inside, then connect the gas supply pipe 35 to the outside of the air inlet pipe 34 to connect the two, start the external air pump, and the gas enters the cavity 31 through the gas supply pipe 35 and the air inlet pipe 34, causing the check valve 33 to open. The gas is sprayed out from multiple air outlets 32 and washes the inner wall of the measuring cylinder 1, cleaning and discharging the residual liquid raw material. After the discharge is completed, turn off the air pump, and the check valve 33 resets and closes the air outlet 32 ​​under the action of the spring 333, completing one weighing and batching operation.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A liquid raw material weighing device, comprising a measuring cylinder (1) and a weighing base (2), characterized in that: The measuring cylinder (1) is installed on the upper wall of the weighing base (2), and a wall cleaning mechanism (3) is provided at the lower end of the outer wall of the measuring cylinder (1). The wall cleaning mechanism (3) can clean the inner wall of the measuring cylinder (1). The wall cleaning mechanism (3) includes a cavity (31), an air outlet (32), a check valve (33), an air inlet pipe (34), and an air delivery pipe (35). The inner cavity of the lower wall of the measuring cylinder (1) is provided with a cavity (31). The bottom wall of the inner cavity of the measuring cylinder (1) is provided with an air outlet (32). The air outlet (32) is connected to the cavity (31). A check valve (33) is installed in the air outlet (32). The check valve (33) can block the liquid raw material in the measuring cylinder (1). An air inlet pipe (34) is inserted into the lower side wall of the measuring cylinder (1). The air inlet pipe (34) is connected to the cavity (31). An air delivery pipe (35) is installed at the other end of the air inlet pipe (34). The air delivery pipe (35) is connected to the output end of an external air pump.

2. The liquid raw material weighing device according to claim 1, characterized in that: The check valve (33) includes a fixed ring (331), a rubber baffle (332), and a spring (333). The fixed ring (331) is installed on the inner wall of the vent (32). The upper wall of the fixed ring (331) is hinged with a rubber baffle (332), which can close the vent (32). One end of the spring (333) is installed on the lower wall of the rubber baffle (332), and the other end of the spring (333) is installed on the inner wall of the fixed ring (331).

3. The liquid raw material weighing device according to claim 1, characterized in that: The number of air outlets (32) is multiple, and the multiple air outlets (32) are arranged in a ring array on the bottom wall of the inner cavity of the measuring cylinder (1). The tilt direction of each air outlet (32) points to the inner wall of the measuring cylinder (1).

4. The liquid raw material weighing device according to claim 1, characterized in that: The outer wall of the measuring cylinder (1) is equipped with a liquid level scale line (4), and one side of the liquid level scale line (4) is marked with a numerical mark corresponding to the weight of the liquid raw material, and the numerical mark matches the volume of the measuring cylinder (1).

5. The liquid raw material weighing device according to claim 1, characterized in that: The measuring cylinder (1) is made of transparent glass. The outer wall of the measuring cylinder (1) is fitted with an anti-slip rubber sleeve (5), and the surface of the anti-slip rubber sleeve (5) is provided with anti-slip texture.

6. The liquid raw material weighing device according to claim 1, characterized in that: The weighing base (2) includes a base plate (21), an electronic scale (22) and a placement tray (23). The electronic scale (22) is installed on the upper wall of the base plate (21), and the placement tray (23) is placed on the upper wall of the electronic scale (22). The measuring cylinder (1) is placed on the placement tray (23).

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