Online weighing device

Abstract

The present application relates to an online weighing device, which belongs to the technical field of weighing systems. The online weighing device is used for weighing injection molded products. The online weighing device includes a main body, a support mechanism, a weighing sensor, and a controller. The support mechanism is used to support the product to be tested, and the support mechanism is arranged above the main body; the weighing sensor is connected to the support mechanism, and is used to weigh the weight of the product to be tested supported by the support mechanism and generate a weight signal; the controller is located in the main body and is electrically connected to the weighing sensor, and the controller is used to generate weight data according to the weight signal of the weighing sensor and store the weight data. The online weighing device can realize automatic weighing of products, save labor costs, and improve production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of weighing systems, and in particular to an online weighing device. Background Art

[0002] In automated injection molding, each process is performed by a dedicated machine, enabling rapid production and improving efficiency. However, it is difficult to monitor the weight of products produced by automated injection molding.

[0003] Currently, injection molding stations generally use electronic scales to manually weigh products through spot checks to monitor product weight in real time. This method is time-consuming and labor-intensive, and it cannot monitor every injection molded product to form a database for quality analysis. This effectively hinders product quality improvement, increases labor costs, and increases production hours. Summary of the Invention

[0004] The purpose of this application is to provide an online weighing device that can realize automatic weighing of products, save labor costs and improve production efficiency.

[0005] This application is achieved through the following technical solutions:

[0006] The present application provides an online weighing device for weighing injection molded products. The online weighing device includes:

[0007] ontology;

[0008] A supporting mechanism, used to support the product to be tested, and the supporting mechanism is arranged above the main body;

[0009] a weighing sensor connected to the supporting mechanism, for weighing the weight of the product to be tested supported by the supporting mechanism and generating a weight signal;

[0010] The controller is located in the body and is electrically connected to the weighing sensor. The controller is used to generate weight data according to the weight signal of the weighing sensor and store the weight data.

[0011] According to the online weighing device of the embodiment of the present application, a support mechanism is used to support the product to be inspected. A weighing sensor measures the weight of the product supported by the support mechanism. A controller generates and stores weight data to facilitate data traceability and monitor product weight. This online weighing device can automatically weigh products, saving labor costs and improving production efficiency.

[0012] In some embodiments of the present application, the support mechanism includes a support platform and a support assembly arranged on the support platform, the support platform includes a accommodating cavity, the weighing sensor is located in the accommodating cavity, the support assembly includes a transverse support portion and a vertical support portion, the transverse support portion is located outside the accommodating cavity, the transverse support portion extends along a first horizontal direction, the transverse support portion is used to support the product to be tested, one end of the vertical support portion is connected to the transverse support portion, and the other end of the vertical support portion is connected to the weighing sensor.

[0013] In the above implementation scheme, the support platform protects the sensor, the horizontal support part supports the product to be tested, and the vertical support part supports the horizontal support part, ensuring that the gravity of the product to be tested can be effectively transmitted to the weighing sensor to ensure accurate weighing.

[0014] In some embodiments of the present application, the lateral support portion includes a rigid support member and a flexible support member, the rigid support member is connected to the vertical support portion, and the flexible support member is installed on the rigid support member.

[0015] In the above embodiment, the flexible support member can protect the product to be detected, and the rigid support member can provide effective supporting force to facilitate the transmission of the gravity of the product to be detected to the weighing sensor.

[0016] In some embodiments of the present application, the flexible support member includes a plurality of support teeth spaced apart along a first horizontal direction.

[0017] In the above embodiment, the provision of a plurality of supporting teeth facilitates the positioning of the product to be inspected and limits the sliding of the product to be inspected relative to the transverse supporting portion.

[0018] In some embodiments of the present application, two groups of support components are provided, and the support platform is provided with a first slide rail and a second slide rail. The first slide rail and the second slide rail both extend along a second horizontal direction perpendicular to the first horizontal direction. One of the two groups of support components slides with the first slide rail, and the other of the two groups of support components slides with the second slide rail.

[0019] In the above embodiment, the arrangement of the first slide rail and the second slide rail can provide guidance for the movement of the two groups of support assemblies, thereby ensuring that the two groups of support assemblies can move flexibly relative to the support platform.

[0020] In some embodiments of the present application, the first slide rail and the second slide rail are collinear, and the first slide rail and the second slide rail are spaced apart along the second horizontal direction.

[0021] In the above embodiment, the first slide rail and the second slide rail are collinear to ensure that the two groups of support components are in the same position; they are spaced apart to ensure that there is a distance between the two groups of support components to provide stable support for the product to be inspected.

[0022] In some embodiments of the present application, the adjustment distance between the two groups of support assemblies is 50-300 mm.

[0023] In the above implementation scheme, the spacing setting is adjusted to facilitate the support of products to be tested of different specifications, and has a wide range of applications.

[0024] In some embodiments of the present application, the support mechanism further includes a locking assembly corresponding to the support assembly, and the locking assembly is used to lock the support assembly with the support platform.

[0025] In the above embodiment, the locking assembly can ensure that the support assembly is locked relative to the support platform to stably support the product to be inspected.

[0026] In some embodiments of the present application, the online weighing device further includes a display screen, which is electrically connected to a controller, and the controller is used to control the display screen to display weight data.

[0027] In the above embodiment, the setting of the display screen makes it easy for the user to observe the weight information of the product to be tested at any time.

[0028] In some embodiments of the present application, the online weighing device further includes an alarm, which is electrically connected to the controller. When the weight data generated by the controller exceeds a preset threshold, the controller controls the alarm to issue an alarm message.

[0029] In the above embodiment, an alarm is used to generate an alarm for weight data exceeding a preset threshold value, so as to monitor the quality of the product to be tested and respond quickly.

[0030] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 An axonometric diagram of an online weighing device provided in one embodiment of the present application;

[0033] Figure 2 A front view of an online weighing device provided in one embodiment of the present application;

[0034] Figure 3 for Figure 2 Cross-sectional view in the AA direction;

[0035] Figure 4 A schematic structural diagram of a support assembly for an online weighing device according to an embodiment of the present application;

[0036] Figure 5 A top view of an online weighing device provided in one embodiment of the present application;

[0037] Figure 6 This is a rear view of an online weighing device provided in one embodiment of the present application;

[0038] Figure 7 This is a schematic diagram of the electrical connections of an online weighing device provided in one embodiment of the present application.

[0039] Icons: 100 - online weighing device; 10 - main body; 11 - working chamber; 12 - box body; 13 - box door; 14 - box lock; 15 - power switch; 16 - adjustable foot; 171 - input port; 172 - output port; 173 - RJ45 network port; 174 - power interface; 20 - support mechanism; 21 - support platform; 210 - accommodation chamber; 211 - shell; 2111 - top plate; 2112 - side plate; 212 - first support Frame; 213-second supporting frame; 214-first slide rail; 215-second slide rail; 22-support assembly; 221-lateral support portion; 2211-rigid support member; 2212-flexible support member; 2213-mounting slot; 2214-support tooth; 222-vertical support portion; 23-locking nut; 30-weighing sensor; 40-controller; 60-display screen; 70-power supply; X-first horizontal direction; Y-second horizontal direction. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0043] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0044] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0045] The following describes an online weighing device according to an embodiment of one aspect of the present application with reference to the drawings.

[0046] like Figures 1-6 As shown, an online weighing device 100 according to an embodiment of the present application is applied to weighing injection molded products. The online weighing device 100 includes a body 10 , a support mechanism 20 , a weighing sensor 30 and a controller 40 .

[0047] Specifically, if Figure 1 and Figure 2 As mentioned above, the body 10 plays the role of positioning support and is used to carry electrical components, etc. The support mechanism 20 is used to support the product to be tested. The support mechanism 20 is set above the body 10 to facilitate docking with the product to be tested. The controller 40 has a storage function, such as Figure 3 As shown, the controller 40 is located in the body 10 and is electrically connected to the weighing sensor 30 . The controller 40 is used to generate weight data according to the weight signal of the weighing sensor 30 and store the weight data.

[0048] According to the online weighing device 100 of the embodiment of the present application, the support mechanism 20 supports the product to be inspected, the load cell 30 measures the weight of the product supported by the support mechanism 20, and the controller 40 generates and stores the weight data for data traceability and product weight monitoring. This online weighing device 100 can automatically weigh products, saving labor costs and improving production efficiency.

[0049] According to some embodiments of the present application, Figure 1 and Figure 3 As shown, the support mechanism 20 includes a support platform 21 and a support assembly 22 disposed on the support platform 21. Figure 3 As shown, the support platform 21 includes a receiving cavity 210, and the weighing sensor 30 is located in the receiving cavity 210 to protect the weighing sensor 30 from being damaged by collision with other objects. Figure 1 As shown, the support assembly 22 includes a transverse support portion 221 and a vertical support portion 222. The transverse support portion 221 is located outside the accommodating cavity 210 and extends along the first horizontal direction X. The transverse support portion 221 is used to support the product to be tested; the vertical support portion 222 is arranged vertically, one end of the vertical support portion 222 is connected to the transverse support portion 221, and the other end of the vertical support portion 222 is connected to the weighing sensor 30.

[0050] The product to be inspected is supported by the transverse support portion 221 , and the transverse support portion 221 is supported by the vertical support portion 222 , ensuring that the gravity of the product to be inspected can be effectively transferred to the weighing sensor 30 , thereby ensuring accurate weighing.

[0051] According to some embodiments of the present application, Figure 1 and Figure 3As shown, the support platform 21 includes a shell 211, a first support frame 212, and a second support frame 213. The shell 211 includes a top plate 2111 and multiple side plates 2112. The top plate 2111 is connected to the upper ends of the multiple side plates 2112 and forms a storage chamber 210 with an open lower end with the multiple side plates 2112. The shell 211 is buckled on the top of the body 10, and the lower end of the shell 211 does not contact the body 10. The first support frame 212 is located in the storage chamber 210 and is connected to the inner surface of the top plate 2111. The first support frame 212, the weighing sensor 30, and the second support frame 213 are distributed from top to bottom. Part of the second support frame 213 is located in the storage chamber 210. The weighing sensor 30 is connected to the first support frame 212 and the second support frame 213. The second support frame 213 is connected to the top of the body 10. One end of the vertical support part 222 away from the horizontal support part 221 (i.e., the lower end) is connected to the top plate 2111. When the horizontal support part 221 supports the product to be tested, the gravity of the product to be tested is transmitted to the weighing sensor 30 via the horizontal support part 221, the vertical support part 222, the top plate 2111 and the first support frame 212.

[0052] According to some embodiments of the present application, Figure 1 and Figure 4 As shown, the lateral support portion 221 includes a rigid support member 2211 and a flexible support member 2212. The rigid support member 2211 is connected to the vertical support portion 222, and the flexible support member 2212 is mounted on the rigid support member 2211. The flexible support member 2212 has a soft and elastic contact surface, preventing damage to the surface of the product to be tested and thus protecting the product to be tested. The rigid support member 2211 can provide effective support force to facilitate the transmission of the weight of the product to be tested to the weighing sensor 30.

[0053] According to some embodiments of the present application, Figure 4 As shown, the rigid support member 2211 has a mounting groove 2213 , and the flexible support member 2212 is configured to be embedded in the mounting groove 2213 to ensure the fixation of the flexible support member 2212 .

[0054] According to some embodiments of the present application, Figure 1 and Figure 4 As shown, the flexible support member 2212 includes a plurality of support teeth 2214 spaced apart along the first horizontal direction X. The provision of the plurality of support teeth 2214 facilitates positioning of the product to be inspected, restricting the product from sliding relative to the transverse support portion 221, and achieving a good positioning effect. The plurality of support teeth 2214 can accommodate products of different specifications and has strong adaptability.

[0055] According to some embodiments of the present application, Figure 1 and Figure 5As shown, two groups of support assemblies 22 are provided, and the support platform 21 is provided with a first slide rail 214 and a second slide rail 215. The first slide rail 214 and the second slide rail 215 both extend along a second horizontal direction Y perpendicular to the first horizontal direction X. One of the two groups of support assemblies 22 slides with the first slide rail 214, and the other of the two groups of support assemblies 22 slides with the second slide rail 215. By adjusting the connection position of the support assembly 22 with the first slide rail 214 and / or adjusting the connection position of the support assembly 22 with the second slide rail 215, the distance between the two support assemblies 22 can be adjusted to accommodate products of different specifications and sizes to be inspected.

[0056] According to some embodiments of the present application, Figure 1 and Figure 5 As shown, the first slide rail 214 and the second slide rail 215 are collinear, and the first slide rail 214 and the second slide rail 215 are spaced apart along the second horizontal direction Y. The first slide rail 214 and the second slide rail 215 are collinear, ensuring that the two sets of support assemblies 22 are positioned in the same direction. The spacing ensures that there is a distance between the two sets of support assemblies 22, so that the product to be inspected can be supported at two points (each support assembly 22 is considered a support point), providing stable support for the product to be inspected.

[0057] According to some embodiments of the present application, the first slide rail 214 and the second slide rail 215 may be slide grooves provided on the support platform 21, and the vertical support portion 222 of each support assembly 22 may be slidably disposed in the slide grooves. Figure 1 and Figure 5 As shown, a chute is provided on the top plate 2111 of the support platform 21, the chute is connected to the accommodating cavity 210, and the lower end of the vertical support portion 222 extends through the chute into the accommodating cavity 210. In other embodiments of the present application, the first slide rail 214 and the second slide rail 215 can also be tracks provided on the top plate 2111, and the vertical support portion 222 slidably cooperates with the tracks. The vertical support portion 222 transmits the gravity of the product to be inspected to the tracks and the top plate 2111, and then transmits it to the first support frame 212 through the top plate 2111, and then transmits it to the weighing sensor 30.

[0058] According to some embodiments of the present application, the support mechanism 20 further includes a locking assembly corresponding to the support assembly 22, which is used to lock the support assembly 22 with the support platform 21. The locking assembly can ensure that the support assembly 22 is locked relative to the support platform 21 to stably support the product to be inspected.

[0059] The lower end of the vertical support portion 222 is provided with a thread, and the lower end of the vertical support portion 222 is provided with a stopper (not shown in the figure), such as Figure 1As shown, the locking assembly includes a locking nut 23, which is sleeved on the vertical support portion 222 and threadedly connected to the vertical support portion 222. Through the cooperation of the locking nut 23 and the stopper, the vertical support portion 222 is fixed to the top plate 2111 of the support platform 21 to ensure that the vertical support portion 222 is fixed relative to the support platform 21. The stopper can be a block formed on the vertical support portion 222, or a nut sleeved on the vertical support portion 222. Different stopper structures can be selected according to actual conditions. When adjusting the connection position of the locking assembly and the support platform 21, loosen the locking nut 23, move the vertical support portion 222, and after moving to the specified position, tighten the locking nut 23 to achieve locking of the vertical support portion 222, which is convenient for adjustment.

[0060] In order to ensure a larger force-bearing area between the locking nut 23 and the top plate 2111 , the locking assembly further includes a washer (not shown in the figure), which is sleeved on the vertical support portion 222 and located between the top plate 2111 and the locking nut 23 .

[0061] According to some embodiments of the present application, in order to ensure that the support assembly 22 moves stably relative to the support platform 21, two first slide rails 214 are provided, and the two first slide rails 214 are arranged at intervals along the first horizontal direction X; two second slide rails 215 are provided, and the two second slide rails 215 are arranged at intervals along the first horizontal direction X.

[0062] According to some embodiments of the present application, the adjustable spacing between the two sets of support assemblies 22 is 50-300 mm. This means that the spacing between the first rail 214 and the second rail 215 is 50 mm, and the distance between the end of the first rail 214 away from the second rail 215 and the end of the second rail 215 away from the first rail 214 is 300 mm. This allows for the support of products of varying specifications to be inspected, and has a wide range of applications.

[0063] According to some embodiments of the present application, the flexible support member 2212 is made of PU (polyurethane), a material that is heat-resistant and not prone to aging, to ensure a long service life. The flexible support member 2212 can also be made of polyimide, polyarylether, polybenzothiazole, polybenzimidazole, etc.

[0064] According to some embodiments of the present application, the rigid support member 2211 is made of bakelite, which is light and thin without losing strength. The chemical name of bakelite is phenolic plastic, which has high mechanical strength, good insulation, heat resistance and corrosion resistance.

[0065] According to some embodiments of the present application, the vertical support portion 222 is made of stainless steel to ensure sufficient supporting strength.

[0066] According to some embodiments of the present application, Figure 1 and Figure 2 As shown, the online weighing device 100 further includes a display screen 60, which is electrically connected to the controller 40. The controller 40 is used to control the display screen 60 to display weight data. The display screen 60 is provided so that the weight information of the product to be tested can be observed at any time.

[0067] According to some embodiments of the present application, the display screen 60 may be a touch screen to facilitate user touch operation and realize intelligent operation.

[0068] According to some embodiments of the present application, the online weighing device 100 further includes an alarm (not shown), which is electrically connected to the controller 40. When the weight data generated by the controller 40 exceeds a preset threshold, the controller 40 controls the alarm to issue an alarm message. The alarm is used to issue an alarm when the weight data exceeds the preset threshold, thereby facilitating monitoring of the quality of the product being tested and enabling rapid response.

[0069] According to some embodiments of the present application, the alarm can be connected to the user's terminal (such as a mobile phone, tablet computer, industrial computer and other electronic devices). After the alarm is triggered, the alarm information can be transmitted to the terminal for the user to respond quickly.

[0070] According to some embodiments of the present application, the load cell 30 and the controller 40 may be checkweighing sensors and controllers from the French company SCAIME. For example, the load cell 30 may be an AG15-C3-SH-10e-F sensor, and the controller 40 may be an eNod4-C-DI00-000-EM controller 40. The load cell 30 has the characteristics of high precision, high repeatability, and long service life.

[0071] According to some embodiments of the present application, Figure 6 As shown, the main body 10 is provided with an input port 171, an output port 172, and an RJ45 network port 173, which are respectively electrically connected to the controller 40. The input port 171, the output port 172, and the RJ45 network port 173 can be connected to the controller 40 via a data cable to achieve communication with an external system, and the online weighing device 100 can be connected to the network via a network cable to facilitate remote recording, storage, and tracing of weighing data.

[0072] According to some embodiments of the present application, Figure 1 and Figure 2 As shown, the bottom of the body 10 is provided with adjustable feet 16. By adjusting the adjustable feet 16, the height of the body 10 can be changed to adapt to different ground environments.

[0073] According to some embodiments of the present application, Figure 3As shown, the online weighing device 100 further includes a power supply 70 , which is disposed in the body 10 and provides power to various electrical components.

[0074] According to some embodiments of the present application, Figure 3 As shown, the body 10 includes a working chamber 11, and the controller 40 is disposed in the working chamber 11. Figure 1 and Figure 2 As shown, the main body 10 includes a box body 12 and a door 13. The front end of the box body 12 is open. The door 13 is arranged at the front end opening and is engaged with the box body 12 to form a working chamber 11. The door 13 is rotatably connected to the box body 12 and is locked by a box lock 14. The display screen 60 and the box lock 14 are arranged on the door 13. A power switch 15 is provided on the door 13. The controller 40 is connected to the power supply 70 through the power switch 15. The power switch 15 enables the power supply 70 to energize the controller 40 (and other electrical devices). The power supply 70 here can be a battery, which can store electrical energy and can also be connected to an external power supply for charging. When in use, the power supply 70 can provide electrical energy to each electrical device, or it can be connected to an external power supply to provide electrical energy to each electrical device. As shown Figure 6 As shown, the body 10 is also provided with a power interface 174, which is connected to an external power source. Figure 7 , which is a schematic diagram of electrical connections of an online weighing device 100 provided in one embodiment of the present application.

[0075] It should be noted that the front end of the front opening refers to one end in the second horizontal direction Y, that is, the second horizontal direction Y is the front-to-back direction of the body 10 , and the first horizontal direction X is the left-to-right direction of the body 10 .

[0076] The working process of the online weighing device 100 according to the embodiment of the present application is as follows:

[0077] The product to be tested is transported and transferred to the top of the online weighing device 100 via an automatic handling device (for example, a robot). After the robot places the product to be tested on the multiple support teeth 2214 of the horizontal support part 221, it quickly withdraws and triggers the start signal (before placing the product to be tested, the robot gives a switch signal to the controller 40, and the controller 40 starts the metering based on this signal). Then weighing begins. After the product to be tested is left to stand for 1-2 seconds, the controller 40 calculates the current weighing data (weight output), then locks the weighing data and displays it on the touch screen. At the same time, the weighing result (weight data) is fed back to the robot, and the robot automatically removes unqualified products. The weighing data and statistical data are stored in the controller 40 for the external system to read. The external system detects that the value of the controller 40 has changed and records the result. At the same time, the number of pieces is counted and compared to see if there is a difference between the two (the number of pieces counted and the data stored in the controller 40). Based on this, the production data is summarized and analyzed.

[0078] The beneficial effects of the online weighing device 100 according to the embodiment of the present application are:

[0079] This online weighing device 100 automatically weighs throughout the entire process, eliminating the need for additional operators or record-keeping personnel. It meets the production needs of products with varying specifications. The weighing sensor 30 has a long lifespan, stable weighing status, and high accuracy. Its networking allows for remote data collection, recording, and transmission via external systems. This online weighing device 100 automatically and reliably collects, identifies, and processes measurement data throughout the automated injection molding process, minimizing the drawbacks and workload associated with manual operation and enhancing the system's level of informationization and automation.

[0080] According to another aspect of the present application, the present application provides an injection molding production line, which adopts the above-mentioned online weighing device 100 to improve the degree of automation of injection molding production.

[0081] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0082] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An online weighing device, used for weighing injection molded products, characterized in that: The online weighing device comprises: ontology; A supporting mechanism, used for supporting the product to be tested, wherein the supporting mechanism is arranged above the body; a weighing sensor connected to the supporting mechanism, for weighing the weight of the product to be tested supported by the supporting mechanism and generating a weight signal; a controller located in the body and electrically connected to the weighing sensor, the controller being configured to generate weight data according to a weight signal from the weighing sensor and store the weight data; The support mechanism includes a support platform and a support assembly provided on the support platform, the support platform includes a receiving cavity, the weighing sensor is located in the receiving cavity, and the support assembly is used to support the product to be tested; The online weighing device also includes a display screen, which is electrically connected to the controller, and the controller is used to control the display screen to display the weight data. The support platform includes a shell, a first support frame, and a second support frame. The shell includes a top plate and multiple side plates. The top plate is connected to the upper ends of the multiple side plates and forms a accommodating cavity with a lower end opening with the multiple side plates. The shell is buckled on top of the main body, and the lower end of the shell does not contact the main body; the first support frame is located in the accommodating cavity and is connected to the inner surface of the top plate. The first support frame, the weighing sensor and the second support frame are distributed from top to bottom. Part of the second support frame is located in the accommodating cavity. The weighing sensor connects the first support frame and the second support frame, and the second support frame is connected to the top of the main body.

2. The online weighing device according to claim 1, characterized in that: The support assembly includes a transverse support portion and a vertical support portion. The transverse support portion is located outside the accommodating cavity, extends along a first horizontal direction, and is used to support the product to be tested. One end of the vertical support portion is connected to the transverse support portion, and the other end of the vertical support portion is connected to the weighing sensor.

3. The online weighing device according to claim 2, characterized in that: The lateral support portion includes a rigid support member and a flexible support member, the rigid support member is connected to the vertical support portion, and the flexible support member is installed on the rigid support member.

4. The online weighing device according to claim 3, characterized in that: The flexible support member includes a plurality of support teeth spaced apart along a first horizontal direction.

5. The online weighing device according to claim 2, characterized in that: The support components are provided in two groups, and the support platform is provided with a first slide rail and a second slide rail. The first slide rail and the second slide rail both extend along a second horizontal direction perpendicular to the first horizontal direction. One of the two groups of support components slides with the first slide rail, and the other of the two groups of support components slides with the second slide rail.

6. The online weighing device according to claim 5, characterized in that: The first slide rail and the second slide rail are collinear, and the first slide rail and the second slide rail are spaced apart along the second horizontal direction.

7. The online weighing device according to claim 6, characterized in that: The adjustment distance between the two groups of support components is 50-300 mm.

8. The online weighing device according to claim 2, characterized in that: The support mechanism further includes a locking assembly corresponding to the support assembly, and the locking assembly is used to lock the support assembly with the support platform.

9. The online weighing device according to claim 1, characterized in that: The online weighing device further includes an alarm, which is electrically connected to the controller. When the weight data generated by the controller exceeds a preset threshold, the controller controls the alarm to issue an alarm message.

Images