A kind of dehydrated vegetable loading metering and weighing equipment

Abstract

The utility model relates to a kind of loading metering and weighing equipment for dehydrated vegetables, comprising: the base with driving area and weighing area;Hopper is set in weighing area;First side door and second side door are oppositely set on hopper;Driving structure is transmission connected with first side door;Wherein, driving structure is configured as to drive first side door displacement along the direction towards second side door, and first side door and the lateral wall of hopper are kept to fit during the displacement process.

Description

Technical Field

[0001] This utility model relates to the technical field of dehydrated vegetable production equipment, and in particular to a dehydrated vegetable feeding, metering and weighing device. Background Technology

[0002] Dehydrated vegetables are widely used in the food industry, including condiments and dehydrated soup mixes. Their processing typically includes slicing, blanching, drying, weighing, and packaging. To improve efficiency, existing production lines often use automated weighing equipment for quantitative packaging. The weighing system usually consists of a conveyor, weighing hopper, sensors, and packaging structure, and is controlled by a PLC system to achieve continuous operation.

[0003] However, when processing sheet-like, lightweight materials such as dehydrated onions, problems often arise such as material sticking, adhering to the walls, or stagnating during weighing or packaging. These materials often have residual sugar or colloids on their surface, which easily cause stickiness. Combined with static electricity, this leads to the material adhering to the hopper walls or feed channels, preventing it from being discharged in time. As a result, the material is included in the weighing but does not actually enter the packaging, causing measurement errors.

[0004] Therefore, in order to address the problems of material adhesion and inaccurate weighing caused by material residue during the automatic weighing process of dehydrated vegetables, there is an urgent need for a dehydrated vegetable feeding and weighing device to improve weighing accuracy and production efficiency. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this utility model is to provide a dehydrated vegetable feeding and weighing device, comprising: a base with a driving area and a weighing area; a hopper disposed in the weighing area; a first side door and a second side door disposed opposite to each other on the hopper; a driving structure pulverizingly connected to the first side door; wherein the driving structure is configured to drive the first side door to move in a direction toward the second side door, and during this displacement, keep the first side door in contact with the side wall of the hopper.

[0006] In some examples of this utility model, a controller and a second side door drive are also included. The controller outputs an opening command to the drive structure to drive the first side door to move from its initial position toward the second side door, and outputs a closing command to the second side door drive while outputting a return command to the drive structure to make the first side door return to the initial position.

[0007] In some examples of this utility model, the second side door drive component is a cylinder, the second side door is a sliding door body, the piston rod of the cylinder is rigidly connected to the second side door via a connecting member, and cooperates with a linear guide mechanism arranged along the movement direction of the second side door, and a limit adjustment member is provided to limit the opening stroke of the second side door.

[0008] In some examples of this utility model, the drive structure includes a linear actuator and a guide mechanism that cooperates therewith, the guide mechanism defining the first side door to move along a linear trajectory substantially parallel to the tangential direction of the hopper sidewall.

[0009] In some examples of this utility model, the side of the first side door facing the side wall of the hopper is provided with a bonding member, which stays in contact with the side wall of the hopper throughout the entire stroke of the first side door to scrape off and guide the attached material.

[0010] In some examples of this invention, the inner surface of the hopper is provided with an anti-stick coating.

[0011] In some examples of this utility model, a weighing sensor is provided in the weighing area, and the weighing sensor is located between the hopper and the base.

[0012] In some examples of this invention, the controller is configured to keep the second side door closed until the weighing stability criterion is met, and to output a control signal to open the second side door for material discharge after the first side door has completed its displacement.

[0013] In some examples of this utility model, at least one of the first side door and the second side door is provided with a position detection sensor. The output of the position detection sensor and the displacement or position feedback of the drive structure are used together as an interlock control signal input to the controller for linkage protection.

[0014] In some examples of this utility model, the linear actuator of the drive structure is a cylinder or a lead screw servo actuator, and its output end is connected to the first side door via an adjustable linkage mechanism to set the bonding pressure between the bonding member and the side wall of the hopper.

[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. This utility model discloses a feeding and weighing device for dehydrated vegetables. By setting a driving area and a weighing area on the base, and setting a hopper in the weighing area, a first side door and a second side door are set opposite to each other on the hopper. The first side door is configured by a driving structure to move in the direction toward the second side door and keep in contact with the side wall of the hopper during the movement. This solves the problem of inaccurate weighing and poor feeding caused by material adhesion and accumulation in traditional weighing equipment for easily adhesive materials such as dehydrated vegetables.

[0016] Specifically, when the equipment performs feeding and metering, material enters the hopper. For accurate metering and smooth discharge, the first side door, driven by the drive structure, moves along the side wall of the hopper. The key to this movement is that the first side door always maintains a tight fit with the side wall of the hopper. This close fit design allows the first side door to effectively scrape off and guide material adhering to the hopper side wall during movement, preventing material from adhering or accumulating on the side wall. For example, for lightweight materials like dehydrated vegetables that are prone to electrostatic adsorption, traditional equipment often results in material residue on the hopper wall during discharge, leading to inaccurate weighing or incomplete discharge. This invention, through the scraping and guiding action of the first side door, ensures the complete discharge of material from the hopper, thereby improving weighing accuracy and discharge efficiency. Simultaneously, this design avoids the tedious manual cleaning required due to material residue, reducing labor intensity and improving automation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of a dehydrated vegetable feeding, metering, and weighing device provided in this embodiment of the utility model; Figure 2 for Figure 1 A schematic diagram of the second perspective structure of the device shown; Figure 3 for Figure 2 A schematic diagram of the third-view structure of the device shown.

[0019] Explanation of reference numerals in the attached figures: 100, base; 200, hopper; 210, first side door; 211, bonding component; 220, second side door; 300, drive structure; 310, linear actuator; 320, guide mechanism; 400, second side door drive component; 500, controller; 510, position detection sensor. Detailed Implementation

[0020] 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. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] 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.

[0022] 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.

[0023] The embodiments of this utility model are described in detail below. Examples of the 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.

[0024] Figure 1 A schematic diagram of the structure of a dehydrated vegetable feeding, metering, and weighing device provided in this embodiment of the utility model; Figure 2 for Figure 1 A schematic diagram of the second perspective structure of the device shown; Figure 3 for Figure 2 A schematic diagram of the third-view structure of the device shown.

[0025] Please see Figure 1-3 In one possible implementation, a feeding and weighing device for dehydrated vegetables includes: a base 100 having a drive zone and a weighing zone; a hopper 200 disposed on the weighing zone; a first side door 210 and a second side door 220 disposed opposite to each other on the hopper 200; and a drive structure 300 pulverically connected to the first side door 210; wherein the drive structure 300 is configured to drive the first side door 210 to move in a direction toward the second side door 220, and during the displacement process, keep the first side door 210 in contact with the side wall of the hopper 200.

[0026] Currently, dehydrated vegetables often experience problems such as material sticking, clinging to the walls, and retention during the weighing or packaging process. This is especially true for flaky, lightweight materials that are prone to retaining sugar or gum on their surface. Their stickiness and static electricity cause the material to adhere to the hopper walls or feed channels, preventing timely discharge and resulting in measurement errors.

[0027] The basic structure of this utility model includes a base 100, a hopper 200, a first side door 210, a second side door 220, and a drive structure 300. The base 100 has a drive area and a weighing area. The hopper 200 is located in the weighing area and is used to hold the dehydrated vegetables to be weighed. The first side door 210 and the second side door 220 are positioned opposite each other on the hopper 200, with the first side door 210 being drive-connected to the drive structure 300. The drive structure 300 is configured to drive the first side door 210 to move towards the second side door 220. During the movement of the first side door 210, it remains in contact with the side wall of the hopper 200, thereby scraping off and guiding the material adhering to the inner wall of the hopper 200. This structure effectively solves the problem of dehydrated vegetables easily sticking together and adhering to the wall during the weighing process, leading to inaccurate measurement. This invention features a movable first side door 210 that fits snugly against the side wall of the hopper 200 and is displaced under the drive of the drive structure 300, thereby effectively scraping off and guiding the attached material, significantly improving weighing accuracy and production efficiency.

[0028] This invention completely solves the problem of measurement errors caused by material adhesion, sticking, and retention, ensuring the accuracy of weighing results. At the same time, by reducing residual material, it improves the continuity and automation level of the production line, reduces the frequency and labor intensity of manual cleaning, thereby improving overall production efficiency.

[0029] Please see Figure 1-3In one possible implementation, the device further includes a controller 500 and a second side door drive 400. The controller 500 outputs an opening command to the second side door drive 400 while outputting a forward command to the drive structure 300 to drive the first side door 210 to move from its initial position toward the second side door 220. The controller 500 outputs a closing command to the second side door drive 400 while outputting a return command to the drive structure 300 to return the first side door 210 to its initial position.

[0030] This invention solves the problems of material retention and inaccurate material dispensing by coordinating the scraping action of the first side door 210 and the opening / closing action of the second side door 220 through a controller 500. Specifically, the controller 500 opens the second side door 220 while the first side door 210 is scraping and displacing, ensuring that the scraped material can fall smoothly into the packaging. The controller 500 closes the second side door 220 promptly after the first side door 210 resets, preventing material from falling accidentally when not weighing, thus significantly improving weighing accuracy and production efficiency. In this embodiment, the dehydrated vegetable feeding and weighing equipment also includes a controller 500 and a second side door drive unit 400. The controller 500, as the control center of the equipment, is responsible for coordinating the actions of the first side door 210 and the second side door 220. When the controller 500 outputs a forward command to the drive structure 300, causing the first side door 210 to move from its initial position toward the second side door 220 for scraping, the controller 500 simultaneously outputs an open command to the second side door drive component 400, opening the second side door 220 to prepare for material discharge. When the first side door 210 has finished scraping and needs to return to its initial position, the controller 500 outputs a return command to the drive structure 300 and simultaneously outputs a close command to the second side door drive component 400, closing the second side door 220. This synchronous linkage control mechanism ensures that the material falls into the lower container promptly and accurately after being scraped, avoiding secondary retention of material in the hopper 200, thereby guaranteeing weighing accuracy and discharge efficiency.

[0031] Through the above structure, this invention achieves precise linkage control of the first side door 210 and the second side door 220 via the controller 500, significantly improving the weighing accuracy and material discharge efficiency when handling easily sticky materials. The controller 500 opens the second side door 220 simultaneously with the first side door 210 scraping away the material, ensuring smooth material discharge and avoiding weighing errors caused by material retention. This synchronous operation not only optimizes the workflow and reduces the material's residence time in the hopper 200, but also avoids material overflow or inaccurate weighing problems that may occur due to manual operation or non-linkage control, thereby greatly improving production efficiency and automation levels.

[0032] It is worth noting that the controller 500 can be in various forms, such as a programmable logic controller (PLC), a microcontroller, or an industrial PC, to adapt to control requirements of varying complexity. The controller 500 can integrate advanced algorithms, such as machine learning-based predictive control, to optimize the linkage timing of the first side door 210 and the second side door 220, further improving material feeding accuracy.

[0033] Please see Figure 1-3 In one possible implementation, the second side door drive 400 is a cylinder, the second side door 220 is a sliding door, the piston rod of the cylinder is rigidly connected to the second side door 220 via a connector, and cooperates with a linear guide mechanism arranged along the movement direction of the second side door 220, and a limit adjustment member is provided to limit the opening stroke of the second side door 220.

[0034] This invention solves the problems of unstable door movement and uncontrollable stroke in the prior art by optimizing the driving and guiding mechanism of the second side door 220, thereby improving the operational reliability and material dropping accuracy of the equipment. Specifically, the cylinder provides a stable driving force, the linear guide mechanism ensures smooth sliding of the door, and the limit adjustment component ensures precise control of the opening stroke, thus effectively preventing material jamming and improving production efficiency.

[0035] Specifically, this invention significantly improves the operational stability, positioning accuracy, and reliability of the second side door 220 by employing a cylinder as the driving component 400 for the second side door, in conjunction with a linear guide mechanism and a limit adjustment component. The cylinder provides rapid and controllable driving force, while the linear guide mechanism ensures smooth and unobstructed sliding of the door, effectively preventing jamming. The limit adjustment component allows operators to precisely set the opening stroke according to material characteristics and unloading requirements, thereby optimizing the unloading process and reducing material residue and metering errors.

[0036] It is worth noting that, in addition to cylinders, the second side door drive unit 400 can also employ electric push rods, servo motor-driven screw mechanisms, or hydraulic cylinders to adapt to different driving forces, speeds, and environmental requirements. The sliding door body of the second side door 220 can be made of different materials, such as stainless steel or engineering plastics, and can be surface treated (such as Teflon coating) to enhance its anti-stick properties.

[0037] Please see Figure 1-3 In one possible implementation, the drive structure 300 includes a linear actuator 310 and a guide mechanism 320 therewith, the guide mechanism 320 defining the first side door 210 to move along a linear trajectory substantially parallel to the tangential direction of the side wall of the hopper 200.

[0038] This invention solves the problem of inaccurate motion trajectory of the scraping mechanism in the prior art by optimizing the drive structure 300, thereby improving scraping efficiency and the integrity of material discharge. Specifically, the linear actuator 310 provides stable linear thrust, while the guide mechanism 320 precisely defines the motion trajectory of the first side door 210, ensuring that it always maintains the optimal scraping angle and contact with the side wall of the hopper 200, thus ensuring that the material is thoroughly scraped and smoothly guided.

[0039] Furthermore, the linear actuator 310 provides the power to drive the first side door 210 to perform linear displacement; for example, it can be a cylinder, an electric actuator, or a lead screw servo mechanism. The guide mechanism 320 precisely defines the movement trajectory of the first side door 210, ensuring that it moves along a straight path substantially parallel to the tangential direction of the side wall of the hopper 200. This structure allows the first side door 210 to effectively scrape along the inner wall of the hopper 200 like a scraper, smoothly pushing the material adhering to the side wall towards the discharge port. The precision of the guide mechanism 320 ensures that the first side door 210 maintains a stable contact with the side wall of the hopper 200 throughout the entire displacement process, thereby achieving thorough scraping and effective guidance of the attached material, avoiding material residue and weighing errors.

[0040] This invention employs a linear actuator 310 and a guiding mechanism 320 to ensure that the first side door 210 moves precisely in a linear direction substantially parallel to the tangential direction of the hopper 200's side wall, significantly improving the thoroughness of material scraping and the effectiveness of guidance. This structure enables the first side door 210 to efficiently remove adhering material from the inner wall of the hopper 200, thereby completely solving the problem of inaccurate weighing caused by material residue and improving metering accuracy. Simultaneously, the smooth linear motion reduces impact and damage to the material, ensuring its integrity and further enhancing the equipment's operational reliability and production efficiency.

[0041] It is worth noting that the linear actuator 310 can be equipped with different types of drives, such as electric actuators, linear motors, or hydraulic cylinders, to adapt to different thrust, speed, and precision requirements. The guide mechanism 320 can adopt various forms such as linear guides, ball screw guides, sliding guides, or crossed roller guides to provide different levels of load-bearing capacity, motion accuracy, and coefficient of friction. In addition to a strictly parallel linear motion parallel to the tangential direction of the hopper 200 sidewall, the movement trajectory of the first side door 210 can also be designed as a slight arc or oblique motion to accommodate hoppers 200 of specific shapes or the scraping requirements of special materials, while still maintaining effective contact with the sidewall. Furthermore, the materials and surface treatments of the linear actuator 310 and guide mechanism 320 can be optimized according to the working environment (such as humidity and corrosiveness) to extend the service life of the equipment.

[0042] Please see Figure 1-3In one possible implementation, the side of the first side door 210 facing the side wall of the hopper 200 is provided with a bonding member 211. The bonding member 211 stays in contact with the side wall of the hopper 200 throughout the entire stroke of the first side door 210 to scrape off and guide the attached material.

[0043] This invention addresses the tendency of dehydrated vegetables to stick together by incorporating an adhesive element 211 on the first side door 210. This ensures that the adhesive element 211 remains tightly fitted to the side wall of the hopper 200 throughout the entire displacement of the first side door 210, thereby efficiently scraping off the adhering material and providing effective guidance. By optimizing the structure of the first side door 210, this invention solves the problems of incomplete scraping and material residue in existing technologies, significantly improving weighing accuracy and material utilization. The adhesive element 211 not only ensures thorough scraping but also guides the scraped material to smoothly enter the weighing area or discharge port, preventing secondary retention of material within the hopper 200, thus further enhancing the equipment's operating efficiency and reliability.

[0044] Specifically, the first side door 210 has a fitting 211 on the side facing the side wall of the hopper 200. The fitting 211 maintains a tight fit with the side wall of the hopper 200 throughout the entire stroke of the first side door 210's scraping displacement, ensuring that it effectively scrapes away the dehydrated vegetable material adhering to the side wall of the hopper 200. Simultaneously, the fitting 211 also acts as a guide, smoothly guiding the scraped material to the outlet of the hopper 200, ensuring that the material falls completely and avoiding weighing errors caused by material residue. The material of the fitting 211 is typically selected to have a certain degree of flexibility, wear resistance, and non-adhesive properties, such as high-molecular polymers or special rubber, to adapt to the characteristics of dehydrated vegetables and extend its service life.

[0045] This invention significantly improves the thoroughness of scraping off adhering materials and the guiding efficiency by incorporating an adhesive element 211 on the first side door 210 and ensuring its tight fit against the side wall of the hopper 200 throughout its entire stroke. This design fundamentally solves the problem of dehydrated vegetables easily sticking together and causing inaccurate measurement due to wall adhesion, ensuring weighing accuracy. The scraping action of the adhesive element 211 reduces material residue and avoids cross-contamination, while its guiding function ensures smooth material discharge, improving production efficiency.

[0046] In one possible implementation, the inner surface of the hopper 200 is provided with an anti-stick coating.

[0047] This invention solves the problem of initial material adhesion in existing technologies by optimizing the surface characteristics of the hopper 200, thereby improving material flowability and scraping efficiency. The anti-stick coating significantly reduces the friction and adhesion between the material and the inner wall of the hopper 200, making it easier for the material to slide off. Combined with the scraping action of the first side door 210, it ensures complete material discharge, further improving weighing accuracy and production efficiency. Specifically, the inner surface of the hopper 200 is provided with an anti-stick coating. This anti-stick coating is specifically designed for handling easily sticky materials. It significantly reduces the coefficient of friction and surface energy between the material and the wall of the hopper 200, thereby reducing the adhesion of dehydrated vegetable materials to its inner surface. Common anti-stick coating materials include polytetrafluoroethylene (PTFE, commonly known as "Teflon"), polyvinylidene fluoride (PVDF), or other polymers. By applying an anti-stick coating to the inner surface of the hopper 200, the problem of material sticking and retention can be fundamentally reduced. Even without the scraping action of the first side door 210, the material slides off more freely. When used in conjunction with the scraping function of the first side door 210, the anti-stick coating can greatly enhance the scraping effect, ensuring that the material in the hopper 200 can be completely emptied, thereby maximizing weighing accuracy and reducing material waste.

[0048] In one possible implementation, a weighing sensor is provided in the weighing area, and the weighing sensor is located between the hopper 200 and the base 100.

[0049] Specifically, a weighing sensor is installed in the weighing area, and this weighing sensor is located between the hopper 200 and the base 100. A weighing sensor is a device that converts the force acting on it (i.e., the weight of the hopper 200 and the material inside) into a measurable electrical signal. By placing it between the hopper 200 and the base 100, the entire weight of the hopper 200, including the weight of the dehydrated vegetable material inside, directly acts on the weighing sensor. This ensures the accuracy and real-time nature of the weighing data. The weighing sensor can be a strain gauge type, piezoelectric type, capacitive type, or other type of sensor, the selection depending on the required accuracy, range, and environmental conditions. By monitoring the weight change of the material in the hopper 200 in real time through the weighing sensor, the controller 500 can accurately determine whether the material has reached the preset weighing target, thereby achieving precise measurement and subsequent material discharge control.

[0050] In one possible implementation, the controller 500 is configured to keep the second side door 220 closed until the weighing stability criterion is met, and to output a control signal to open the second side door 220 for material discharge after the first side door 210 has completed its displacement.

[0051] The controller 500 is configured to keep the second side door 220 closed until the weighing stability criterion is met. The weighing stability criterion typically includes parameters such as the fluctuation range of the weighing sensor signal and the stabilization time. Only when these parameters reach a preset stable state is the weighing result considered accurate and reliable. After weighing stabilization, the controller 500 waits for the first side door 210 to complete its scraping and guiding displacement operation. Once the first side door 210 confirms completion of the displacement (e.g., through a position feedback signal), the controller 500 outputs a control signal to the second side door drive 400, causing the second side door 220 to open, thereby enabling precise material discharge. This control strategy ensures that material discharge only occurs after the material weight is stable and all scraping actions are completed, avoiding weighing errors caused by material shaking, material movement during the scraping process, or incomplete scraping, thus greatly improving the accuracy of measurement and the efficiency of material discharge.

[0052] This invention uses a controller 500 to intelligently determine the stable weighing state and coordinate the displacement of the first side door 210, ensuring that the second side door 220 opens at the optimal time for material unloading, significantly improving the equipment's metering accuracy and unloading efficiency. This control strategy avoids weighing errors caused by material shaking or incomplete scraping, guaranteeing the accuracy of each unloading operation. Simultaneously, it optimizes the workflow, reduces unnecessary waiting time, and improves the automation level and overall production efficiency of the production line.

[0053] Please see Figure 3 In one possible implementation, at least one of the first side door 210 and the second side door 220 is provided with a position detection sensor 510. The output of the position detection sensor 510 and the displacement or position feedback of the drive structure 300 are used together as an interlock control signal input to the controller 500 for linkage protection.

[0054] Specifically, the position detection sensor 510 and the displacement feedback of the driving structure 300 together ensure that the controller 500 can accurately grasp the precise positions of all components in real time, so as to immediately trigger protection measures in any abnormal situation and avoid mechanical damage or production accidents. At least one of the first side door 210 and the second side door 220, preferably both, is provided with a position detection sensor 510. The position detection sensor 510 can be a proximity switch, an optoelectronic sensor, an encoder, a magnetic sensor, etc., and is used to detect the current position of the door body in real time. The output signal of the position detection sensor 510 and the displacement or position feedback signal of the driving structure 300 itself (such as the encoder feedback of the lead screw servo mechanism) are jointly used as an interlock control signal and input to the controller 500. The controller 500 uses these interlock signals for logical judgment to ensure that the action sequence and position relationship of each component meet the preset safety conditions. For example, only when the first side door 210 is fully opened or closed is the second side door 220 allowed to act; or during the scraping process of the first side door 210, the second side door 220 must remain closed until the scraping is completed. This multiple position feedback and interlock mechanism can effectively prevent mechanical interference, material spillage or operation errors, and greatly improve the safety, stability and automation level of equipment operation.

[0055] In this utility model, by providing a position detection sensor 510 on the first side door 210 and / or the second side door 220, and jointly using its output and the displacement feedback of the driving structure 300 as an interlock control signal and inputting it to the controller 500, the interlock protection of equipment operation is achieved, significantly improving the operation safety and system reliability. This multiple position feedback mechanism ensures the precise synchronization and non-interference of the actions of each component, effectively avoiding mechanical damage and production accidents. At the same time, the accurate position information also provides more comprehensive operation status data for the controller 500, optimizing the control logic, thereby improving the automation level and production efficiency of the equipment.

[0056] In a possible implementation manner, the linear actuator 310 of the driving structure 300 is a cylinder or a lead screw servo actuator, and its output end is connected to the first side door 210 via an adjustable link mechanism to set the fitting pressure between the fitting member 211 and the side wall of the hopper 200.

[0057] Specifically, the linear actuator 310 can preferably be a cylinder or a lead screw servo actuator. The cylinder has the advantages of simple structure, low cost and fast response, and is suitable for occasions with relatively high speed requirements but relatively less stringent requirements for position accuracy. The lead screw servo actuator drives the lead screw through a servo motor, and can provide higher positioning accuracy, speed controllability and torque / pressure control capabilities, and is suitable for occasions with strict requirements for scraping positions and fitting pressures. More importantly, the output end of the linear actuator 310 is connected to the first side door 210 via an adjustable link mechanism.

[0058] This invention significantly improves the controllability and precision of the adhesion pressure between the bonding component 211 and the side wall of the hopper 200 by designing the linear actuator 310 as a cylinder or lead screw servo actuator and introducing an adjustable linkage mechanism to connect to the first side door 210. This structure allows the equipment to flexibly adjust the scraping pressure according to the viscosity of different materials and the material of the hopper 200, thereby ensuring the scraping effect while effectively extending the service life of the hopper 200 and the bonding component 211. This improves the adaptability, economy, and ease of maintenance of the equipment, further enhancing production efficiency and product quality.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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 metering device for feeding dehydrated vegetables, characterized in that, include: A base is provided with a driving zone and a weighing zone; a hopper is provided in the weighing zone; A first side door and a second side door are disposed opposite to each other on the hopper; a drive structure is drivenly connected to the first side door; wherein the drive structure is configured to drive the first side door to move in a direction toward the second side door, and keep the first side door in contact with the side wall of the hopper during the displacement.

2. The dehydrated vegetable feeding, metering, and weighing equipment according to claim 1, characterized in that, It also includes a controller and a second side door drive unit. The controller outputs a forward command to the drive structure to drive the first side door to move from its initial position toward the second side door while simultaneously outputting an open command to the second side door drive unit. When the controller outputs a return command to the drive structure to return the first side door to its initial position, it outputs a close command to the second side door drive unit.

3. The dehydrated vegetable feeding, metering, and weighing equipment according to claim 2, characterized in that, The second side door drive component is a cylinder, and the second side door is a sliding door. The piston rod of the cylinder is rigidly connected to the second side door via a connector and cooperates with a linear guide mechanism arranged along the movement direction of the second side door. A limit adjustment component is provided to limit the opening stroke of the second side door.

4. The dehydrated vegetable feeding, metering, and weighing equipment according to claim 1, characterized in that, The drive structure includes a linear actuator and a cooperating guide mechanism, the guide mechanism defining the first side door to move along a linear trajectory substantially parallel to the tangential direction of the hopper sidewall.

5. The dehydrated vegetable feeding, metering, and weighing equipment according to claim 4, characterized in that, The first side door is provided with a fitting member on the side facing the hopper side wall. The fitting member stays in contact with the hopper side wall throughout the entire stroke of the first side door to scrape off and guide the attached material.

6. The dehydrated vegetable feeding, metering, and weighing equipment according to claim 1, characterized in that, The inner surface of the hopper is provided with an anti-stick coating.

7. The dehydrated vegetable feeding, metering, and weighing equipment according to claim 1, characterized in that, The weighing area is equipped with a weighing sensor, which is located between the hopper and the base.

8. The dehydrated vegetable feeding, metering, and weighing equipment according to claim 2, characterized in that, The controller is configured to keep the second side door closed until the weighing stability criterion is met, and to output a control signal to open the second side door for material discharge after the first side door has completed its displacement.

9. The dehydrated vegetable feeding, metering, and weighing equipment according to claim 3 or 8, characterized in that, At least one of the first side door and the second side door is equipped with a position detection sensor. The output of the position detection sensor and the displacement or position feedback of the drive structure are used together as an interlock control signal input to the controller for linkage protection.

10. The dehydrated vegetable feeding, metering, and weighing equipment according to claim 5, characterized in that, The linear actuator of the drive structure is a cylinder or lead screw servo actuator, and its output end is connected to the first side door via an adjustable linkage mechanism to set the bonding pressure between the bonding member and the side wall of the hopper.

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