Online weighing device and automatic detection equipment

Abstract

The invention discloses an on-line weighing device and automatic detection equipment, and relates to the technical field of weighing detection.The on-line weighing device comprises an installation support, a conveying device and a weighing device, the conveying device comprises a conveying support and a conveying assembly, the conveying assembly is arranged on the conveying support, and the weighing device is arranged on the conveying support. The conveying assembly is provided with a conveying end in the first direction, and the conveying end of the conveying assembly is configured to be capable of conveying products in the second direction. The weighing device is arranged between the conveying support and the mounting support, and the weighing device is configured to be capable of measuring the overall weight in the product conveying process of the conveying device.

Description

Technical Field

[0001] This invention relates to the field of weighing and testing technology, and in particular to an online weighing device and an automatic testing equipment. Background Technology

[0002] In production facilities in logistics, industry, and medical fields, it is often necessary to use automated inspection equipment to inspect products on the production line. The inspection items are varied, including weight detection. However, the current automated inspection equipment has low weighing efficiency and cannot adapt to the fast production cycle. Summary of the Invention

[0003] The main objective of this invention is to propose an online weighing device and an automatic detection equipment, which aims to improve the problem of low weighing and detection efficiency of current automatic detection equipment.

[0004] To achieve the above objectives, the online weighing device proposed in this invention includes: Mounting bracket; A conveying device includes a conveying bracket and a conveying assembly. The conveying bracket is disposed at the upper end of a mounting bracket, and the conveying assembly is disposed on the conveying bracket. The conveying assembly has an upper conveying end configured to convey products in a forward-backward direction. A weighing device is disposed between the conveying bracket and the mounting bracket, and the weighing device is configured to measure the real-time weight of the products conveyed by the conveying device.

[0005] To achieve the above objectives, the automatic detection device proposed in this invention includes: Online weighing devices; and, A detection component is disposed on the mounting bracket of the online weighing device. The detection component includes at least a barcode scanner and a photoelectric detector, which are respectively positioned facing the conveying component of the online weighing device. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0007] Figure 1 This is a schematic diagram of an embodiment of the automatic detection device provided by the present invention; Figure 2This is a schematic diagram of the structure of an embodiment of the online weighing device provided by the present invention; Figure 3 for Figure 2 Exploded view of the online weighing device; Figure 4 for Figure 2 Another structural schematic diagram of the conveyor device; Figure 5 for Figure 4 Exploded view of the conveyor system (partial view of the conveyor belt).

[0008] Explanation of icon numbers: 1000. Automatic testing equipment; 100. Online weighing device; 200. Detection component; 210. Barcode scanning device; 220. Optical detection device; 1. Mounting bracket; 11. Installation space; 2. Conveying device; 21. Conveying bracket; 211. Mounting groove; 212. Through hole; 22. Conveying assembly; 221. Rotating roller shaft; 221a. Tensioning roller shaft; 2211. Mounting shaft core; 2211a. Mounting end; 2212. Rotating bushing; 222. First limiting groove; 223. Conveyor belt; 223a. Conveying end; 2231. Annular protrusion; 23. Support plate; 231. Second limiting groove; 3. Weighing device; 31. Weighing sensor; 4. Guide assembly; 41. Guide plate; 5. Electrical control box; 51. Control main board.

[0009] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0011] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0012] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0013] In production facilities in logistics, industry, and medical fields, it is often necessary to use automated inspection equipment to inspect products on the production line. The inspection items are varied, including weight detection. However, the current automated inspection equipment has low weighing efficiency and cannot adapt to the fast production cycle.

[0014] The aforementioned problems arise because most weighing devices in current automated inspection equipment employ a lifting structure and are installed on the conveyor line. When a product flows past the weighing device along the conveyor line, the device rises to stop it on its pallet for weighing. After weighing, the device lowers, allowing the product to return to the conveyor line. This weighing process requires stopping the product, and the rising and falling process is time-consuming, resulting in low weighing efficiency and reduced product turnover, thus affecting production cycle time.

[0015] In view of this, the present invention provides an online weighing device and an automatic detection equipment, which can at least improve the problem of low weighing and detection efficiency of current automatic detection equipment.

[0016] To facilitate understanding of the online weighing device and automatic detection equipment provided by the present invention, the following description is provided in conjunction with the accompanying drawings, wherein... Figure 1 This is a schematic diagram of an embodiment of the automatic detection device provided by the present invention; Figure 2 This is a schematic diagram of the structure of an embodiment of the online weighing device provided by the present invention; Figure 3 for Figure 2 Exploded view of the online weighing device; Figure 4 for Figure 2 Another structural schematic diagram of the conveyor device; Figure 5 for Figure 4 Exploded view of the conveyor system (partial view of the conveyor belt).

[0017] On the one hand, please refer to Figure 2 and Figure 3 In one embodiment of the present invention, the online weighing device 100 includes a mounting bracket 1, a conveying device 2, and a weighing device 3. The conveying device 2 includes a conveying bracket 21 and a conveying assembly 22. The conveying bracket 21 is disposed at the upper end of the mounting bracket 1, and the conveying assembly 22 is disposed on the conveying bracket 21. The conveying assembly 22 has an upper conveying end 223a, which is configured to convey products in a forward-backward direction. The weighing device 3 is disposed between the conveying bracket 21 and the mounting bracket 1, and is configured to measure the real-time weight of the products conveyed by the conveying device 2. The function of the "conveying assembly 22" is to transport products in the front-to-back direction. Its specific structural types are numerous. For example, the conveying assembly 22 can consist of multiple actively rotating rollers distributed along the front-to-back direction, allowing the rollers to transfer products in this direction. Of course, this embodiment does not limit this. In practical applications, the conveying assembly 22 includes an input end and an output end in the front-to-back direction. By connecting its input and output ends to the conveyor line, the product to be tested can be received from the conveyor line through the input end, and after weighing, the product can be returned to the conveyor line through its output end.

[0018] Combining the description of "the conveyor bracket 21 being positioned at the upper end of the mounting bracket 1" and "the weighing device 3 being positioned between the conveyor bracket 21 and the mounting bracket 1," it can be understood that the entire weight of the conveying device 2 is transferred to the mounting bracket 1 via the weighing device 3. This includes the weight of the product conveyed by the conveying component 22. Therefore, the weighing device 3 can measure the real-time weight of the product during the conveying process of the conveying device 2, including the total weight of the product and the conveying device 2, as well as the weight of the conveying device 2 itself. The individual weight of the product can be obtained by calculating the difference between the total weight and its own weight. There are many specific structural types of the "weighing device 3," such as a weighing balance or a platform scale, which are not limited in this embodiment.

[0019] To ensure accurate weighing, the product to be tested is usually weighed separately by an online weighing device 100.

[0020] In the technical solution provided by this invention, the front and rear ends of the conveying component 22 are respectively connected to the product conveying line. The conveying component 22 can continuously and uninterruptedly convey the product. During the process of conveying the product, since a weighing device 3 is set between the conveying bracket 21 and the mounting bracket 1, the overall weight of the conveying device 2 during the process of conveying the product can be measured by the weighing device 3. By comparing the overall weight with the weight of the conveying device 2 itself, the individual weight of the product can be determined. This truly realizes online measurement of product weight, has high measurement efficiency, and can also ensure the flow efficiency of the conveying line for the product, thus accelerating the production cycle.

[0021] Please see Figure 3 and Figure 4 In some embodiments, the conveying assembly 22 includes two rotating rollers 221 and a conveyor belt 223. The two rotating rollers 221 are spaced apart in the front-to-back direction and each has two mounting ends 2211a in the left-to-right direction. The two mounting ends 2211a are respectively mounted on the conveying bracket 21. The conveyor belt 223 is wound around the two rotating rollers 221 and includes a conveying end 223a. The weighing device 3 includes four weighing sensors 31, which are respectively set at the four mounting ends 2211a of the two rotating rollers 221.

[0022] "Rotating roller 221" can be understood as a roller shaft configured for transfer, with its rotation axis in the left-right direction. The rotating roller 221 has two mounting ends 2211a in the left-right direction. The mounting ends 2211a can be mounted on the conveying bracket 21 in two ways: fixed mounting and rotating mounting. Under the premise that the mounting ends 2211a are rotatably mounted on the conveying bracket 21, the rotating roller 221 can be integrally set, that is, it rotates as a whole. Under the premise that the mounting ends 2211a are fixedly mounted on the conveying bracket 21, in order to ensure that the rotating roller 221 has a rotating part, the rotating roller 221 can include a mounting core 2211 and a rotating sleeve. The mounting ends 2211a are set on the mounting core 2211, and the rotating sleeve is rotatably sleeved on the mounting core 2211.

[0023] Regardless of the structure of the rotating roller 221, it usually needs to be installed and positioned relative to the conveying bracket 21 by means of its mounting end 2211a. Based on this, "the four weighing sensors 31 are respectively set to correspond to the four mounting ends 2211a of the two rotating rollers 221" can be understood as the four weighing sensors 31 being set to overlap with the four mounting ends 2211a in the vertical projection. Of course, the weighing sensors 31 can also have a certain positional offset relative to the mounting ends 2211a in the vertical projection. For example, the four weighing sensors 31 can form a weighing area in the vertical projection, and the four mounting ends 2211a of the two rotating rollers 221 can fall into this weighing area.

[0024] In the two rotating rollers 221, one of the rotating rollers 221 is usually set as the driving roller and the other as the driven roller. The driving roller rotates under the drive of the motor, thereby driving the conveyor belt 223 to rotate, and the conveyor belt 223 then drives the driven roller to rotate.

[0025] "The conveyor belt 223 is wound around two rotating rollers 221" can be understood as the conveyor belt 223 being wound around at least the rotatable part of the rotating rollers 221, such as a rotating sleeve; "The conveyor belt 223 includes a conveying end 223a", which refers to the flat conveying section at the upper end of the conveyor belt 223 during its rotation, that is, the part that contacts the product.

[0026] In the above technical solution, the conveying component 22 is set as a combination of conveyor belt 223 and rotating roller shaft. The rotating roller shaft drives the conveyor belt 223 to smoothly convey the product, so that the fluctuation of the gravity parameter measured by the weighing device 3 is small. On this basis, the weighing device 3 is set as four weighing sensors 31, and the four weighing sensors 31 are respectively set to correspond to the four mounting ends 2211a of the two rotating roller shafts 221, so as to accurately determine the individual weight of the product.

[0027] In some embodiments, the four weighing sensors 31 can measure the gravity distribution information of the conveying device 2 during the process of conveying the product. For example, when the product enters the conveying component 22 at a position that is not in the middle of its left-right direction, the position of the product entering the conveying component 22 can be determined based on the gravity distribution information measured by the four weighing sensors 31 (for example, the position of the product entering the conveying component 22 can be determined to be the left front position). Based on this gravity distribution information, the detection device in the detection component 200 of the self-feeding detection device can be controlled to adjust the detection direction, so as to detect the product as directly as possible (towards the left front of the conveying component 22), which is beneficial to improving the detection accuracy of the detection device.

[0028] Please see Figure 4 and Figure 5In some embodiments, the peripheral sidewalls of the two rotating rollers 221 are respectively provided with first limiting grooves 222 in an annular shape; the inner sidewall of the conveyor belt 223 is provided with an annular protrusion 2231, which extends into the two first limiting grooves 222.

[0029] The first limiting groove 222 is arranged in a ring shape, and its surrounding direction is the circumferential direction of the rotation axis of the rotating roller shaft 221. At the same time, the inner sidewall of the conveyor belt 223 is provided with an annular protrusion 2231, and the surrounding direction of the annular protrusion 2231 is the same as the surrounding direction of the first limiting groove 222. During the process of the conveyor belt 223 rotating around the rotating roller shaft 221, it usually has an arc-shaped conveying section that contacts the rotating roller shaft 221. Part of the corresponding annular protrusion 2231 on the arc-shaped conveying section extends into the first limiting groove 222 of the rotating roller shaft 221.

[0030] In the above technical solution, since an annular protrusion 2231 is provided on the inner side wall of the conveyor belt 223, and a first limiting groove 222 is provided in an annular shape on the peripheral side wall of the two rotating roller shafts 221, the annular protrusion 2231 can extend into the first limiting groove 222 during the rotation of the conveyor belt 223 driven by the rotating roller shaft 221. The first limiting groove 222 restricts the movement of the annular protrusion 2231 in the left and right directions, thus limiting the deviation of the conveyor belt 223.

[0031] Similarly, please continue reading Figure 4 and Figure 5 In some embodiments, the conveying device 2 further includes a support plate 23, which is disposed on the inner side of the conveyor belt 223 and supports the conveyor belt 223. The support surface of the support plate 23 is formed with a second limiting groove 231 that runs through the front-rear direction. The inner sidewall of the conveyor belt 223 is provided with an annular protrusion 2231, which extends into the second limiting groove 231.

[0032] The supporting surface of the "support plate 23" refers to the surface close to the conveyor belt 223, specifically supporting the conveying end 223a of the conveyor belt 223, that is, the flat conveying section. The support plate 23 can be installed on the conveyor bracket 21 along its left-right side.

[0033] In the above technical solution, since an annular protrusion 2231 is provided on the inner side wall of the conveyor belt 223, and a second limiting groove 231 is provided on the supporting surface of the support plate 23, during the rotation of the conveyor belt 223, the annular protrusion 2231 can extend into the second limiting groove 231, and the second limiting groove 231 restricts the movement of the annular protrusion 2231 in the left and right directions, thus limiting the conveyor belt 223 from deviating.

[0034] It should be noted that the two parallel technical features, "first limiting groove 222" and "second limiting groove 231", can be set individually or simultaneously. Obviously, setting them simultaneously is more effective. Moreover, when the first limiting groove 222 and the second limiting groove 231 are set simultaneously, the first limiting groove 222, the second limiting groove 231 and the annular protrusion 2231 can form a circumferential limiting group. Multiple circumferential limiting groups can be set in the left and right directions to enhance the anti-deviation effect on the conveyor belt 223.

[0035] Please see Figure 5 In some embodiments, one of the rotating roller shafts 221 is configured as a tensioning roller shaft 221a, which includes a mounting core 2211 and a rotating sleeve 2212. The mounting core 2211 has two mounting ends 2211a, and the rotating sleeve 2212 is rotatably sleeved on the mounting core 2211. The conveyor belt 223 is wound around the rotating sleeve 2212. The two mounting ends 2211a of the mounting core 2211 are configured to be adjustable in position along the front-back direction.

[0036] The function of the tension roller 221a is to apply a force to the conveyor belt 223 away from the other rotating roller 221, so that the conveyor belt 223 can maintain a taut state. Regarding the mounting core 2211 and the rotating bushing 2212, the mounting core 2211 is the part fixed relative to the rotating bushing 2212, and its function is to be fixedly connected to the conveyor bracket 21. The two mounting ends 2211a of the mounting core 2211 are configured to be adjustable in the front-back direction. There are various specific adjustment methods, which are not limited in this embodiment. However, it is certain that adjusting one mounting end 2211a alone can change the angle between the tension roller 221a and the other rotating roller 221, and finally achieve a parallel state.

[0037] To prevent the conveyor belt 223 from running off-track, the above technical solution designs the two mounting ends 2211a of the mounting shaft 2211 to be adjustable in the front-to-back direction. When the conveyor belt 223 runs off-track toward the first mounting end 2211a of the tension roller shaft 221a, it means that the first mounting end 2211a is closer to the other rotating roller shaft 221 than the second mounting end 2211a, so that there is a certain angle between the tension roller shaft 221a and the rotating roller shaft 221. At this time, the first mounting end 2211a can be finely adjusted to move away from the rotating roller shaft 221, or the second mounting end 2211a can be finely adjusted to move closer to the rotating roller shaft 221, so that the tension roller shaft 221a and the rotating roller shaft 221 remain parallel, which can play the role of preventing the conveyor belt 223 from running off-track.

[0038] Please continue reading. Figure 5In some embodiments, the conveying bracket 21 is provided with a mounting groove 211 corresponding to the mounting end 2211a of the mounting shaft core 2211, and the mounting groove 211 extends in the front-back direction; the mounting groove 211 has a through hole 212 extending outward through the groove sidewall in the front-back direction; the conveying device 2 also includes an adjusting bolt provided with a corresponding through hole 212, the adjusting bolt extends into the mounting groove 211 through the through hole 212 and is threaded to the mounting end 2211a of the mounting shaft core 2211.

[0039] Since the through hole 212 penetrates the side wall of the mounting groove 211 in the front-back direction, it can be understood that the through hole 212 extends in the front-back direction. Therefore, it can be determined that the adjusting bolt extends in the front-back direction. Figure 5 The adjusting bolt extending in the front-to-back direction is not shown in the diagram, but it is present in the actual device.

[0040] In the above technical solution, since the adjusting bolt extends into the mounting groove 211 through the through hole 212 and is threaded to the mounting end 2211a of the mounting shaft core 2211, with its screw head located outside the through hole 212 and connected to the mounting end 2211a of the mounting shaft core 2211 through a stud, by rotating the screw head of the adjusting bolt, the mounting end 2211a of the mounting shaft core 2211 can be steplessly adjusted in the front and back directions under the action of the threaded connection, which can play a role in fine adjustment.

[0041] Please see Figure 4 In some embodiments, the online weighing device 100 further includes a guide assembly 4, which includes two guide plates 41. The two guide plates 41 correspond to the conveying end 223a of the conveying assembly 22 and are spaced apart in the left-right direction; wherein the position of the two guide plates 41 in the left-right direction is adjustable.

[0042] The mounting base for the guide plate 41 can typically be a conveyor bracket 21. The two guide plates 41 are set corresponding to the conveying end 223a of the conveying device 2. Their purpose is to provide guidance for the products conveyed by the conveying end 223a of the conveying assembly 22 in the front-back direction and to prevent the products from leaving the conveying assembly 22 in the left-right direction. Since the positions of the two guide plates 41 in the left-right direction are adjustable, the distance between them can be adjusted according to different product sizes to ensure that the products can pass through the middle of the conveying assembly 22, thus ensuring the accuracy of the weight measurement of the weighing device 3.

[0043] There are several ways to adjust the position of the guide plate 41 in the left-right direction, for example... Figure 4As shown, an adjusting rod is provided on one side of the two guide plates 41 that are opposite to each other. The adjusting rod extends in the left and right direction. One end of the adjusting rod is connected to the corresponding guide plate 41, and the other end passes through the mounting hole of the corresponding mounting structure on the conveying bracket 21. The mounting structure is provided with a limit bolt. The limit bolt extends into the mounting hole and is threaded to the mounting structure. By screwing the limit bolt into the mounting hole, the adjusting rod can be abutted and limited.

[0044] Specifically, such as Figure 4 As shown, the front and rear ends of the guide plate 41 are respectively provided with arc-shaped inclined surfaces. The two arc-shaped inclined surfaces corresponding to the two guide plates 41 can guide the products on the conveyor line to the conveyor assembly 22.

[0045] Furthermore, a mounting groove is provided on one side of the two guide plates 41 that are opposite to each other, and the end of the adjusting rod is fitted into the mounting groove, so that the guide plate 41 can adjust its position relative to the adjusting rod in the front-back direction.

[0046] The mounting groove can specifically be a T-shaped groove.

[0047] Existing automatic testing equipment typically separates the electrical control box 5 from the host computer. This separation can cause inconvenience during long-distance transportation and post-transport assembly. Therefore, please refer to... Figure 2 and Figure 3 In some embodiments, the mounting bracket 1 defines an installation space 11, an electrical control box 5 is provided in the installation space 11, a control main board 51 is provided in the electrical control box 5, and the control main board 51 is electrically connected to the weighing device 3 and the conveying device 2.

[0048] The "installation space 11" is usually located below the conveyor 2 and is set to open in the left and right directions. After the conveyor assembly 22 is connected to the conveyor line in the front and back direction, the electrical control box 5 set in the installation space 11, which is set to open in the left and right directions, is also easier for the user to operate.

[0049] The "control motherboard 51" is designed to replace the traditional host computer, and it plays a role in control, data acquisition and analysis, and communication.

[0050] In the above technical solution, the control motherboard 51 is reasonably arranged in the electrical control box 5. The control motherboard 51 can replace the host computer. In other words, the traditional host computer and the electrical control box 5 are integrated into one unit, which is convenient for transportation and assembly.

[0051] Please see Figures 1 to 3 In some embodiments, the mounting bracket 1 and / or the conveying bracket 21 are constructed from multiple profile structures.

[0052] "Profile structure" refers to a strip structure with a specific cross-sectional shape and size produced by plastic processing methods such as rolling, extrusion or drawing.

[0053] In the above technical solution, the mounting bracket 1 and the conveying bracket 21 are constructed using profile structures. Since profile structures are readily available and have high scalability, users can construct mounting brackets 1 and conveying brackets 21 of various configurations according to actual setup requirements, which has the advantages of high construction efficiency and low construction cost.

[0054] On the other hand, please see Figure 1 and Figure 2 In one embodiment of the present invention, the automatic detection device 1000 includes an online weighing device 100 and a detection component 200 as described in any of the above embodiments. The detection component 200 is disposed on the mounting bracket 1 of the online weighing device 100. The detection component 200 includes at least a barcode scanner 210 and a photodetector 220, which are respectively positioned facing the conveying component 22 of the online weighing device 100. The specific structure of the online weighing device 100 is as described in the above embodiments. Since the automatic detection device 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The barcode scanner 210 and the photodetector 220 can respectively acquire the product's identification code information and appearance information. Specifically, the barcode scanner 210 can be a barcode scanner, and the photodetector 220 can be a CCD camera with a light source.

[0055] In the technical solution provided by the present invention, the self-feeding testing equipment is equipped with an online weighing device 100, a barcode scanning device 210 and an optical inspection device 220, which can automatically test the product and obtain information parameters such as its weight information, identification information and appearance information. The entire testing process is carried out online without manual intervention, which greatly improves production efficiency and saves production costs.

[0056] In some embodiments, the barcode scanning device 210 and the optical inspection device 220 can automatically adjust their orientation according to the position of the product entering the conveying assembly 22, thereby accurately acquiring its identification and appearance information. Specifically, it can be installed on the mounting bracket 1 of the online weighing device 100 through a universal movable unit. The specific structural type of the "universal movable unit" can refer to the movable unit of the monitoring probe, and this embodiment of the invention does not limit it.

[0057] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An online weighing device, characterized in that, include: Mounting bracket; A conveying device includes a conveying bracket and a conveying assembly. The conveying bracket is disposed at the upper end of a mounting bracket, and the conveying assembly is disposed on the conveying bracket. The conveying assembly has an upper conveying end configured to convey products in a forward-backward direction. A weighing device is disposed between the conveying bracket and the mounting bracket, and the weighing device is configured to measure the real-time weight of the products conveyed by the conveying device.

2. The online weighing device as described in claim 1, characterized in that, The conveying assembly includes: Two rotating rollers are spaced apart along the front-to-back direction and each has two mounting ends in the left-to-right direction, the two mounting ends being respectively mounted on the conveying bracket; and, A conveyor belt, wound around the two said rotating rollers, the conveyor belt including the conveying end; The weighing device includes four weighing sensors, which are respectively installed at the four mounting ends of the two rotating rollers.

3. The online weighing device as described in claim 2, characterized in that, The two rotating rollers are respectively provided with a first limiting groove in an annular shape on their peripheral sidewalls; The inner wall of the conveyor belt is provided with an annular protrusion, which extends into the two first limiting grooves.

4. The online weighing device as described in claim 2, characterized in that, The conveying device further includes a support plate, which is disposed on the inner side of the conveyor belt and supports the conveyor belt. The support surface of the support plate is formed with a second limiting groove that runs through the front-rear direction. The inner wall of the conveyor belt is provided with an annular protrusion, which extends into the second limiting groove.

5. The online weighing device as described in claim 2, characterized in that, One of the rotating roller shafts is configured as a tensioning roller shaft, the tensioning roller shaft includes a mounting core and a rotating bushing, the mounting core has two mounting ends, the rotating bushing is rotatably sleeved on the mounting core, and the conveyor belt is wound around the rotating bushing; The two mounting ends of the mounting shaft are configured to be adjustable in position along the front-rear direction.

6. The online weighing device as described in claim 5, characterized in that, The conveying bracket is provided with a mounting groove at the mounting end of the mounting shaft, and the mounting groove extends along the front-back direction. The mounting groove extends outward through the groove sidewall in the front-rear direction to form a through hole; The conveying device also includes an adjusting bolt corresponding to the through hole. The adjusting bolt extends into the mounting groove through the through hole and is threaded to the mounting end of the mounting shaft.

7. The online weighing device as described in claim 1, characterized in that, The online weighing device also includes a guide assembly, which includes two guide plates. The two guide plates correspond to the conveying end of the conveying assembly and are spaced apart in the left-right direction. The positions of the two guide plates are adjustable along the left-right direction.

8. The online weighing device as described in claim 1, characterized in that, The mounting bracket defines an installation space, within which an electrical control box is installed. The electrical control box contains a control main board, which is electrically connected to the weighing device and the conveying device.

9. The online weighing device as described in claim 1, characterized in that, The mounting bracket and / or the conveying bracket are constructed from multiple profile structures.

10. An automatic detection device, characterized in that, include: The online weighing device as described in any one of claims 1 to 9; as well as, A detection component is disposed on the mounting bracket of the online weighing device. The detection component includes at least a barcode scanner and a photoelectric detector, which are respectively positioned facing the conveying component of the online weighing device.

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