Weighing and subpackaging device

Abstract

The utility model discloses a weighing and sub-packaging device, which comprises a mounting frame, a weighing and sub-packaging device, a weighing and sub-packaging device, a weighing and sub-packaging device and a weighing and sub-packaging device, the raw material bin is installed on the installation frame, a material supplementing table is arranged in the raw material bin and divides the interior of the raw material bin into an upper material storage area and a lower material supplementing area, the upper material storage area is suitable for supplementing materials to the lower material supplementing area, the bottom of the lower material supplementing area is provided with a discharging port located over the objective table, and a first control valve is arranged at the discharging port; the weighing structure is used for weighing materials in the lower material supplementing area, the weighing structure and the first control valve are both electrically connected with the control module, and the control module is arranged to control the first control valve to be opened when the weighing value of the weighing structure is higher than a first set value. According to the weighing and subpackaging device, the powder can be rapidly and accurately weighed and subpackaged, the automation degree is high, the operation is simple and convenient, the working efficiency is improved, the labor cost is reduced, and the weighing and subpackaging device is suitable for trace weighing and subpackaging of various material powder.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder subpackaging device technical field especially relates to a weighing subpackaging device. BACKGROUND

[0002] Agarose is powder, needs through sol - gel's operation to carry out morphological conversion, namely, a certain amount of agarose powder is added to high temperature resistant container, and a certain amount of electrophoresis buffer solution is added to high temperature and is boiled into agarose solution in microwave oven, and then the agarose solution is introduced into the gel plate sealed at both ends, and is cooled and solidified into specific shape agarose gel.

[0003] In the related art, the powder is generally weighed by a balance, which has low efficiency, high labor intensity and low precision. UTILITY MODEL CONTENT

[0004] The utility model aims at least to solve one of the technical problems existing in the prior art. Therefore, the utility model provides a weighing subpackaging device, which can realize rapid and accurate weighing and subpackaging of powder, ensure continuous subpackaging, has high automation degree, is simple to operate, effectively improves work efficiency, reduces labor cost, and is suitable for micro weighing and subpackaging of various material powders.

[0005] According to the weighing subpackaging device, the installation frame is provided with a material loading table, the raw material bin is installed on the installation frame, a material supplementing table is arranged in the raw material bin, the raw material bin is divided into an upper material storage area and a lower material supplementing area by the material supplementing table, the upper material storage area is suitable for supplementing the lower material supplementing area, a discharge port is arranged at the bottom of the lower material supplementing area and located directly above the material loading table, a first control valve is arranged at the discharge port, a weighing structure and a control module are arranged, the weighing structure is used for weighing the material in the lower material supplementing area, the weighing structure and the first control valve are electrically connected with the control module, and the control module is set to control the first control valve to be opened when the weighing value of the weighing structure is higher than a first set value.

[0006] According to the embodiment of the utility model, the large-volume raw material bin is arranged, different concentration of material can be packaged at one time, the upper storage area is separated into upper storage area and lower material supplement area, the upper storage area can continuously supplement material to the lower material supplement area, the continuity of packaging is ensured, and manual frequent material adding is not needed; the weighing structure is arranged, the weight of material in the lower material supplement area is monitored in real time, the discharge port is automatically opened for packaging when the first set value is reached, the material amount of each packaging is accurate, and the packaging precision is improved; the control module is used for realizing automatic control of the first control valve, the work efficiency is improved, the labor cost is reduced, the device has high automation degree, can realize rapid and accurate weighing and packaging of material powder, is simple to operate, and is suitable for trace weighing and packaging of various material powders.

[0007] According to the weighing and packaging device of some embodiments of the utility model, the material supplement table is provided with a second control valve for selectively connecting the upper storage area and the lower material supplement area, the second control valve is electrically connected with the control module, the control module is further arranged to control the second control valve to open when the weighing value of the weighing structure is less than a second set value and control the first control valve to close when the weighing value of the weighing structure is less than a first set value, and the second set value is less than the first set value.

[0008] According to the weighing and packaging device of some embodiments of the utility model, the weighing and packaging device further comprises a detection sensor for detecting the reagent bottle on the object table, the control module is electrically connected with the detection sensor, the control module is arranged to control the first control valve to open when the weighing value of the weighing structure is greater than a first set value and the detection sensor detects the reagent bottle, and the control module is arranged to control the first control valve to close when the detection sensor detects that the reagent bottle is removed.

[0009] According to the weighing and packaging device of some embodiments of the utility model, the weighing structure comprises a weighing sensor and a trace weighing table, the weighing sensor is connected with the trace weighing table, the trace weighing table is located in the lower material supplement area, and the weighing sensor is located outside the raw material bin and is electrically connected with the control module.

[0010] According to the weighing and packaging device of some embodiments of the utility model, the mounting frame comprises a base, a mounting beam and a fixing support, the object table is arranged on the base, the mounting beam is mounted on the base and extends upwards relative to the base, the fixing support is mounted on the mounting beam and located above the object table, and the raw material bin is mounted on the fixing support.

[0011] According to some embodiments of the weighing and dispensing device of the present invention, the control module includes a control panel, which is disposed on the mounting beam, and the control panel has an operation interface and / or operation buttons.

[0012] According to some embodiments of the present invention, the weighing and dispensing device further includes a power supply component, which is electrically connected to the control module.

[0013] According to some embodiments of the weighing and dispensing device of the present invention, a protective cover is also provided at the bottom of the discharge port. The protective cover is flared and its outer diameter is set to gradually increase from the discharge port downwards.

[0014] According to some embodiments of the weighing and dispensing apparatus of the present invention, the first control valve is constructed as a solenoid valve.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the weighing and dispensing device according to an embodiment of the present invention.

[0018] Figure label:

[0019] Weighing and dispensing device 100,

[0020] Mounting bracket 1, base 11, platform 111, mounting beam 12, fixing bracket 13

[0021] Raw material silo 2, upper storage area 21, lower replenishment area 22, discharge port 221.

[0022] Material replenishment platform 3, first control valve 4,

[0023] Weighing structure 5, weight sensor 51, micro-weighing platform 52

[0024] 6. Control panel, 7. Power supply unit, 8. Protective cover. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] 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 based on the specific circumstances.

[0028] The following is for reference. Figure 1 The present invention describes a weighing and dispensing device 100 according to an embodiment of the present invention. The weighing and dispensing device 100 can realize rapid and accurate weighing and dispensing of powders, ensure dispensing continuity, has a high degree of automation, is easy to operate, effectively improves work efficiency, reduces labor costs, and is suitable for micro-weighing and dispensing of various material powders.

[0029] like Figure 1 As shown, a weighing and dispensing device 100 according to an embodiment of the present invention includes: a mounting frame 1, a raw material bin 2, a weighing structure 5, and a control module. It should be noted that the weighing and dispensing device 100 of this embodiment can be used for micro-weighing and dispensing of any type of material powder, such as agarose powder, glucose powder, and pharmaceutical powder.

[0030] Mounting frame 1 is the main support structure of the entire weighing and dispensing device 100. It is used to support and fix various components. Mounting frame 1 is provided with a platform 111, that is, the platform 111 is set on mounting frame 1. The platform 111 is used to receive powder and to carry or place dispensing bottles (such as reagent bottles) for dispensing.

[0031] The raw material silo 2 is installed on the mounting frame 1. The raw material silo 2 is equipped with a feeding platform 3, which divides the raw material silo 2 into an upper storage area 21 and a lower feeding area 22. The upper storage area 21 is suitable for feeding the lower feeding area 22.

[0032] Specifically, the raw material silo 2 is used to store powder to be weighed and packaged. The capacity of the raw material silo 2 should be sufficient to meet the total cumulative amount of packaged powder. The raw material silo 2 can be constructed in the shape of a funnel to increase its volume, so as to facilitate the addition of more powder in the raw material silo 2 and better guide the powder to flow smoothly downwards, thereby making it easier to control the amount of powder discharged. The large-volume raw material silo 2 can also realize the one-time weighing and packaging of powder of different concentrations on multiple plates. The raw material silo 2 is equipped with a feeding platform 3, which divides the raw material silo 2 into an upper storage area 21 and a lower feeding area 22. The upper storage area 21 can be fed to the lower feeding area 22. That is, the upper storage area 21 and the lower feeding area 22 can be selectively connected so that when the powder in the lower feeding area 22 is insufficient or there is no powder, the powder in the lower feeding area 22 can be replenished in time. Thus, when the powder in the lower feeding area 22 is continuously consumed, the powder in the upper storage area 21 will be automatically replenished to the lower part, realizing continuous feeding, maintaining the continuity of packaging, and improving production efficiency. In the actual design, the replenishing platform 3 can be set in the lower middle part of the raw material silo 2 so that more powder can be stored in the upper storage area 21 and less powder can be stored in the lower replenishing area 22, which is convenient for precise control of the amount of powder dispensed. When the powder weight in the upper storage area 21 reaches the total amount of dispensed powder, the device starts to work. If it does not meet the requirements, an alarm can be set to prompt the user to add powder.

[0033] The bottom of the lower feeding area 22 is provided with a discharge port 221 located directly above the platform 111, and a first control valve 4 is provided at the discharge port 221.

[0034] In other words, the discharge port 221 is the outlet for powder dispensing within the lower feeding area 22. A first control valve 4 is installed at the discharge port 221, allowing for precise powder dispensing by controlling its opening and closing. When the first control valve 4 is open, the discharge port 221 is open, allowing powder from the lower feeding area 22 to exit through the bottom discharge port 221 and fall onto the platform 111. When a reagent bottle containing powder is placed on the platform 111, the powder can fall directly into the bottle, achieving dispensing. Positioning the discharge port 221 directly above the platform 111 ensures that the powder falls accurately and quickly into the reagent bottle, preventing powder from spilling outside and causing insufficient powder dispensing and waste.

[0035] Furthermore, the weighing structure 5 is used to weigh the material in the lower feeding area 22. Both the weighing structure 5 and the first control valve 4 are electrically connected to the control module. The control module is configured to control the first control valve 4 to open when the weighing value of the weighing structure 5 is higher than the first set value.

[0036] Specifically, refer to Figure 1 As shown, the weighing structure 5 can be installed in the lower feeding area 22 to weigh the powder in the lower feeding area 22 and monitor the powder weight in the lower feeding area 22 in real time. Both the weighing structure 5 and the first control valve 4 are electrically connected to the control module, meaning that the weighing structure 5 and the first control valve 4 can transmit signals with the control module. The weight value of the dispensed powder, i.e., the first set value, can be preset in the control module. The weighing structure 5 measures the powder weight in real time and converts the weighing value into an electrical signal, which is then transmitted to the control module. After receiving the actual weighing value, the control module can compare it with the preset weight value of the dispensed powder to determine whether the actual weighing value reaches the preset weight value of the dispensed powder.

[0037] When the control module determines that the weighing value of the weighing structure 5 is higher than the preset weight value of the dispensed powder, i.e., the first set value, the control module can issue a command to control the first control valve 4 to open, so that the discharge port 221 is in the open state, thereby allowing the powder in the lower feeding area 22 that has reached the dispensing weight to flow out from the discharge port 221 and fall into the reagent bottle on the platform 111, realizing automatic discharge control and ensuring the accuracy and stability of weighing and dispensing.

[0038] Therefore, the weighing and dispensing device 100 of this embodiment, through its partitioned raw material silo 2, precise weighing structure 5, and intelligent control module, can achieve rapid and accurate weighing and dispensing of powder, ensuring dispensing continuity, high degree of automation, and simple operation, effectively improving work efficiency and reducing labor costs.

[0039] According to the weighing and dispensing device 100 of this utility model embodiment, by setting a large-capacity raw material silo 2, materials of different concentrations can be dispensed at one time. The raw material silo 2 is divided into an upper storage area 21 and a lower replenishment area 22, so that the upper storage area 21 can continuously replenish materials to the lower replenishment area 22, ensuring the continuity of dispensing and eliminating the need for frequent manual material addition. By setting a weighing structure 5 to monitor the weight of the material in the lower replenishment area 22 in real time, the discharge port 221 is automatically opened for dispensing when the weight reaches a first set value, ensuring the accuracy of the material quantity dispensed each time and improving the dispensing precision. By using a control module to realize the automatic control of the first control valve 4, the work efficiency is improved and the labor cost is reduced. The device has a high degree of automation, can realize the rapid and accurate weighing and dispensing of material powders, is easy to operate, and is suitable for the micro-weighing and dispensing of various material powders.

[0040] In some embodiments, the feeding station 3 is provided with a second control valve for selectively connecting the upper storage area 21 and the lower feeding area 22, and the second control valve is electrically connected to the control module.

[0041] In other words, the control module can send control commands to the second control valve to control the opening and closing of the second control valve, thereby controlling the connection state between the upper storage area 21 and the lower replenishment area 22. When the second control valve is open, the upper storage area 21 is connected to the lower replenishment area 22, and the upper storage area 21 can replenish material into the lower replenishment area 22. When the second control valve is closed, the upper storage area 21 is not connected to the lower replenishment area 22, and the upper storage area 21 cannot replenish material into the lower replenishment area 22.

[0042] Furthermore, the control module is also configured to control the second control valve to open when the weighing value of the weighing structure 5 is less than the second set value, and to control the first control valve 4 to close when the weighing value of the weighing structure 5 is less than the first set value, wherein the second set value is less than the first set value.

[0043] Specifically, the second setting value can be set to the minimum weight of powder that can be stored in the lower replenishment area 22, that is, the second setting value is less than the weight of a set portion of powder, which means that the second setting value is less than the first setting value. For example, the second setting value can be set to 0, that is, when there is no powder in the lower replenishment area 22, the upper storage area 21 can replenish powder to the lower replenishment area 22 in a timely manner.

[0044] Thus, when the weighing structure 5 weighs the powder in the lower feeding area 22, if the weighing value of the weighing structure 5 is less than the second set value, that is, less than the set weight value of one portion of powder, the control module can immediately control the second control valve to open, so that the upper storage area 21 can automatically replenish the powder to the lower feeding area 22, so that the lower feeding area 22 gradually reaches the set amount of one portion of powder. At this time, since the amount of powder is insufficient, that is, the weighing value of the weighing structure 5 is lower than the first set value, the module can control the first control valve 4 to close, so that the powder in the lower feeding area 22 cannot be discharged from the outlet 221. When the amount of powder in the lower feeding area 22 reaches the set amount of powder to be dispensed, that is, when the weighing value of the weighing structure 5 reaches the first set value, the control module can immediately control the first control valve 4 to open, so that the powder that meets the dispensing amount can go out from the discharge port 221 and fall into the reagent bottle on the platform 111. At the same time, the second control valve is controlled to close, stopping the dispensing into the lower feeding area 22. After completing one dispensing, the second dispensing can be repeated.

[0045] In some embodiments, the weighing and dispensing device 100 further includes a detection sensor for detecting reagent bottles on the stage 111, and the control module is electrically connected to the detection sensor.

[0046] In other words, the control module and the detection sensor can transmit signals. The detection sensor is used to detect whether a reagent bottle is placed on the stage 111 and converts the detection information into an electrical signal and transmits it to the control module. After receiving the detection information, the control module can perform corresponding control.

[0047] Furthermore, the control module is configured to open the first control valve 4 when the weighing value of the weighing structure 5 is higher than the first set value and the detection sensor detects the reagent bottle, and to close the first control valve 4 when the detection sensor detects that the reagent bottle has left.

[0048] Specifically, when the weighing structure 5 weighs the powder in the lower feeding area 22, if the weighing value of the weighing structure 5 is higher than the first set value, that is, higher than the set weight value of one portion of powder, and at the same time, the detection sensor detects that a reagent bottle is placed on the platform 111, the control module can control the first control valve 4 to open, so that the powder in the lower feeding area 22 that has reached the set dispensing amount can go out from the discharge port 221 and fall into the reagent bottle, realizing the weighing and dispensing of one portion of powder; if the detection sensor detects that no reagent bottle is placed on the platform 111, the control module can control the first control valve 4 to close the discharge port 221, stop dispensing, and the powder in the lower feeding area 22 cannot go out from the discharge port 221. At the same time, the control module can alarm to remind the user.

[0049] In some embodiments, the weighing structure 5 includes a weighing sensor 51 and a micro-weighing platform 52. The weighing sensor 51 is connected to the micro-weighing platform 52, which is located in the lower feeding area 22. The weighing sensor 51 is located outside the raw material silo 2 and is electrically connected to the control module.

[0050] In other words, powder entering the lower feeding area 22 from the upper storage area 21 can fall onto the micro-weighing platform 52, allowing the micro-weighing platform 52 to weigh the powder in real time and adjust the feeding amount accordingly. The weighing sensor 51 can be connected to the micro-weighing platform 52 via welding, bolts, or other connection methods, so that the gravity change generated when the powder falls onto the weighing platform can be transmitted to the gravity sensor, which then converts the gravity change into a weighing value.

[0051] The weighing sensor 51 can transmit signals with the control module. That is, the weighing sensor 51 can convert the weighing value into an electrical signal and transmit it to the control module. The control module compares the actual weighing value with the preset weight value of the powder to be packaged, so as to perform relevant control and send control commands to the first control valve 4 and the second control valve to control their opening and closing states, thereby realizing feeding, packaging, etc.

[0052] Specifically, such as Figure 1As shown, the weighing structure 5 includes a load cell 51 and a micro-weighing platform 52. The micro-weighing platform 52 is installed inside the lower feeding area 22 and above the discharge port 221, allowing the powder in the lower feeding area 22 to fall directly onto the weighing platform 52 for direct weighing. This enables real-time monitoring and adjustment of the feeding amount to meet the set packaging production requirements. The load cell 51 is connected to the micro-weighing platform 52 and located outside the raw material silo 2, corresponding to the left side of the raw material silo 2 shown in the figure. This avoids the influence of dust or other contaminants in the raw material silo 2 on the load cell 51, thereby improving the measurement accuracy and service life of the load cell 51.

[0053] Thus, by setting up the weighing sensor 51 and the micro-weighing platform 52, the micro-weighing platform 52 weighs in real time, and the weighing sensor 51 processes the weighing value in real time and transmits it to the control module for relevant control, which further improves the automation of the device and improves the accuracy and efficiency of powder weighing and dispensing.

[0054] In practical design, a third control valve can also be set to selectively connect the micro-weighing platform 52 to the discharge port 221. The third control valve is electrically connected to the control system. In this way, when the weighing sensor 51 detects that the actual weight of the powder on the micro-weighing platform 52 reaches the set dispensing weight value, i.e., the first set value, the control module can control the third control valve to open, so that the powder can fall from the micro-weighing platform 52 into the discharge port 221. At the same time, the first control valve 4 is controlled to open, so that the powder in the discharge port 221 can go out from the discharge port 221 and fall into the reagent bottle. At the same time, the second control valve is controlled to close, stopping the upper storage area 21 from feeding the lower feeding area 22.

[0055] In addition, the weighing sensor 51 can be connected using a shielded signal cable. The shielded signal cable reduces electromagnetic interference and can transmit electrical signals to the control module more accurately, thereby improving weighing accuracy and dispensing accuracy.

[0056] In some embodiments, the mounting frame 1 includes a base 11, a mounting beam 12, and a fixed bracket 13. The base 11 is provided with a platform 111, the mounting beam 12 is mounted on the base 11 and extends upward relative to the base 11, the fixed bracket 13 is mounted on the mounting beam 12 and is located above the platform 111, and the raw material bin 2 is mounted on the fixed bracket 13.

[0057] Specifically, as shown in the figure, the mounting frame 1 includes a base 11, a mounting beam 12, and a fixed bracket 13. The base 11 is the supporting foundation of the entire device, ensuring that the entire device can be stably placed on the ground or operating surface. The base 11 can be constructed as a flat plate with a certain thickness to ensure its stability. The stage 111 is installed at one end of the base 11, corresponding to the right end of the base 11 shown in the figure. The stage 111 is used to place reagent bottles. In practice, a placement groove can be set on the stage 111 to ensure the stable placement of the reagent bottles and prevent them from tipping over, so that the powder can fall stably into the reagent bottles, ensuring the reliability of the dispensing process and the accuracy of the dispensing quantity. The mounting beam 12 is fixedly connected to the base 11 and extends upward. The mounting beam 12 is used to connect the base 11 and the fixed bracket 13 to ensure the stability of the fixed bracket 13. The mounting beam 12 is installed at the other end of the base 11, corresponding to the left end of the base 11 shown in the figure, to avoid interference between the mounting beam 12 and the stage 111 and ensure the feasibility of operation. The fixed bracket 13 is fixedly installed on the upper end of the mounting beam 12 and located above the platform 111, maintaining a certain distance from the platform 111. The fixed bracket 13 is used to support and fix the raw material bin 2 to ensure that the powder can be safely placed and stored inside the raw material bin.

[0058] Thus, the base 11, mounting beam 12 and fixed bracket 13 provide a stable, efficient and reliable operating platform, ensuring the smooth progress of the weighing and dispensing process.

[0059] In some embodiments, the control module includes a control panel 6, which is disposed on the mounting beam 12 and has an operation interface and / or operation buttons.

[0060] Specifically, as shown in the figure, the control panel 6 is mounted on the mounting beam 12, and can be installed in the middle of the mounting beam 12 for easy operation. The control panel 6 has an operation interface and / or operation buttons, which can be used to input relevant commands through the operation interface and / or operation buttons. In practice, the dispensing weight (i.e., the preset weight value of one portion of powder), the number of dispensing portions, and the dispensing mode can be set on the control panel 6. These can be flexibly set according to actual needs. For example, the dispensing weight can be set to 3.5g, 2g, 1.5g, etc., the number of dispensing portions can be three, five, ten, etc., and the dispensing mode can be set to standard mode, quick mode, etc.

[0061] In practical design, the user interface can be set as a touch screen, display screen, indicator lights, etc. A touch screen can provide a more intuitive and easy-to-operate environment. The operation buttons can be set as push buttons in conjunction with the display screen or indicator lights, so that users can perform relevant operation commands by pressing the operation buttons. For example, the operation buttons may include start and stop, mode selection, quantity selection, increase or decrease buttons, etc.

[0062] Therefore, the settings of control panel 6 improve the ease of operation of the device, ensure accurate control of the control module, thereby improving the operational stability and reliability of the device and further enhancing the degree of automation.

[0063] In some embodiments, the weighing and dispensing device 100 further includes a power supply 7, which is electrically connected to the control module.

[0064] Specifically, the power supply unit 7 is used to provide power to the control module to ensure the normal operation of the control module, thereby ensuring the stable and reliable operation of the weighing and dispensing device 100 and improving production efficiency.

[0065] In some embodiments, the power supply unit 7 is electrically connected to the control module via a power cable harness passing through the mounting bracket 1.

[0066] In other words, the electrical energy provided by the power supply unit 7 can be safely and efficiently transmitted to the control module through the power cable harness, thereby ensuring the reliability of power transmission and the stable operation of the control module. Furthermore, running the power cable harness within the mounting bracket 1 effectively protects it from external environmental interference and damage. For example, it prevents it from being squeezed by other components or exposed to a humid environment, which could affect its performance. It also reduces the space occupied by the power cable harness, making the entire device more compact and aesthetically pleasing.

[0067] In some embodiments, a protective cover 8 is provided at the bottom of the discharge port 221. The protective cover 8 is configured to be flared and its outer diameter is set to gradually increase downward from the discharge port 221.

[0068] Specifically, such as Figure 1 As shown, a protective cover 8 is provided at the bottom of the discharge port 221. The protective cover 8 is flared and its outer diameter gradually increases from the discharge port 221 downwards. The first control valve 4 is located inside the protective cover 8. In this way, the protective cover 8 can protect the first control valve 4, thereby improving the control accuracy of the first control valve 4, preventing the first control valve 4 from being opened or closed accidentally, and can also block and prevent the powder from accidentally splashing or spilling when falling from the discharge port 221, affecting the dispensing accuracy. Especially when the powder being dispensed is toxic, the protective cover 8 can also reduce the safety hazards caused by powder splashing to the operators.

[0069] In the actual design, the raw material bin 2 and the protective cover 8 can be made of transparent acrylic material to facilitate observation of the remaining powder inside.

[0070] In some embodiments, the first control valve 4 is configured as a solenoid valve.

[0071] Specifically, the first control valve 4 can be configured as a solenoid valve. Solenoid valves have fast response speed, high control accuracy, high safety and strong adaptability, and are easy to install and maintain. They can achieve precise control of the discharge port 221, and the powder flow rate of the discharge port 221 can be adjusted by adjusting the opening of the solenoid valve, which is flexible and convenient.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A weighing and dispensing device, characterized in that, include: Mounting frame, wherein the mounting frame is provided with a platform; A raw material silo is installed on the mounting frame. The raw material silo is equipped with a feeding platform, which divides the raw material silo into an upper storage area and a lower feeding area. The upper storage area is adapted to feed the lower feeding area. The bottom of the lower feeding area is equipped with a discharge port located directly above the loading platform. A first control valve is provided at the discharge port. A weighing structure and a control module are provided. The weighing structure is used to weigh the material in the lower feeding zone. The weighing structure and the first control valve are both electrically connected to the control module. The control module is configured to control the first control valve to open when the weighing value of the weighing structure is higher than a first set value. The feeding platform is equipped with a second control valve for selectively connecting the upper storage area and the lower feeding area. The second control valve is electrically connected to the control module. The control module is also configured to control the second control valve to open when the weighing value of the weighing structure is less than a second set value and to control the first control valve to close when the weighing value of the weighing structure is less than a first set value. The second set value is less than the first set value. The weighing structure is provided with a third control valve for selectively connecting the lower feeding area and the discharge port. The third control valve is electrically connected to the control module. The control module is also configured to control the third control valve to open when the weighing value of the weighing structure exceeds a first set value.

2. The weighing and dispensing device according to claim 1, characterized in that, It also includes a detection sensor for detecting reagent bottles on the stage. The control module is electrically connected to the detection sensor. The control module is configured to control the first control valve to open when the weighing value of the weighing structure is higher than a first set value and the detection sensor detects the reagent bottle, and to control the first control valve to close when the detection sensor detects the reagent bottle leaving.

3. The weighing and dispensing device according to claim 1 or 2, characterized in that, The weighing structure includes a weighing sensor and a micro-weighing platform. The weighing sensor is connected to the micro-weighing platform, which is located in the lower feeding area. The weighing sensor is located outside the raw material silo and is electrically connected to the control module.

4. The weighing and dispensing device according to claim 1 or 2, characterized in that, The mounting frame includes a base, a mounting beam, and a fixed bracket. The base is provided with a platform. The mounting beam is mounted on the base and extends upward relative to the base. The fixed bracket is mounted on the mounting beam and is located above the platform. The raw material silo is mounted on the fixed bracket.

5. The weighing and dispensing device according to claim 4, characterized in that, The control module includes a control panel, which is located on the mounting beam and has an operation interface and / or operation buttons.

6. The weighing and dispensing device according to claim 1 or 2, characterized in that, It also includes a power supply component, which is electrically connected to the control module.

7. The weighing and dispensing device according to claim 6, characterized in that, The power supply component is electrically connected to the control module via a power cable harness that passes through the mounting bracket.

8. The weighing and dispensing device according to claim 1 or 2, characterized in that, The bottom of the discharge port is also provided with a protective cover, which is flared and has an outer diameter that gradually increases from the discharge port downwards.

9. The weighing and dispensing device according to claim 1 or 2, characterized in that, The first control valve is constructed as a solenoid valve.

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