Weighing device

By designing an adjustable weighing device, the upper and lower displacement of the pallet module is achieved using the roller set, and the distance between the cantilever module and the weighing platform is adjusted, which solves the problem of poor compatibility in the prior art, and realizes weight measurement of packaging bags of different specifications, expands the application range and saves transportation costs.

CN222784188UActive Publication Date: 2025-04-22METTLER TOLEDO (CHANGZHOU) MEASUREMENT TECH CO LTD +2
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421707899.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-04-22
Estimated Expiration
2034-07-18

AI Technical Summary

Technical Problem

When measuring the weight of bags with different heights, the existing weighing devices have poor high compatibility and cannot meet the needs of bags with different specifications. They are low in modularity and require non-scalar changes.

Method used

A weighing device is designed, including a weighing platform, column module, pallet module and cantilever module. The pallet module is rollingly installed with the column module through the roller set and the column module, and can move up and down, adjust the distance between the cantilever module and the weighing platform, and adapt to packaging bags of different heights.

Benefits of technology

The applicability to packaging bags of different heights is achieved, modular integration is improved, and the weight measurement needs of packaging bags of different specifications can be met through simple combinations between different modules, the application range is expanded, and transportation space and costs are saved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222784188U_ABST
    Figure CN222784188U_ABST
Patent Text Reader

Abstract

The utility model discloses a weighing device. The weighing device comprises a weighing platform used for measuring the weight of a packaging bag; the stand column module is installed on one side of the weighing platform. The supporting plate module is installed on the stand column module. The cantilever module is mounted on the supporting plate module, is arranged above the weighing platform and is used for hanging a packaging bag; the supporting plate module reciprocates up and down on the stand column module, so that the distance between the cantilever module and the weighing platform can be matched with packaging bags of different heights. According to the utility model, the modularization integration level is high, the weight measurement requirements of customers on packaging bags with different specifications can be met through simple non-standard modification or combination among different modules, the application range is wider, and the practical value and the market value are high; in addition, the modularized design is beneficial to transportation, and transportation space and cost are saved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of quantitative weighing equipment, and in particular relates to a weighing device. Background Art

[0002] The weighing device is an automated weighing device that automatically packs bulk materials into packaging bags through a specific feeding method, and the materials in the packaging bags meet the preset weight after packing. It is widely used in food, grain, oil, chemical and other fields.

[0003] The height between the weighing platform and the cantilever module of the existing weighing device for measuring the weight of packaging bags is relatively fixed, and the height compatibility is poor, which cannot meet the needs of measuring the weight of packaging bags of different heights. In order to meet the weight measurement needs of packaging bags of different specifications, non-standard changes need to be made to the weighing device, and the degree of modularity is low.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a weighing device, which can meet customers' needs for weight measurement of packaging bags of different specifications through simple non-standard modification or combination between different modules, has a wider application range, and has high practical value and market value.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] A weighing device, comprising:

[0008] Weighing platform, used to measure the weight of packaging bags;

[0009] A column module, installed on one side of the weighing platform;

[0010] A support plate module is installed on the column module;

[0011] A cantilever module is installed on the support plate module and arranged above the weighing platform, and is used to hang packaging bags; wherein,

[0012] The support plate module is moved up and down and back and forth on the column module, so that the distance between the cantilever module and the weighing platform can be adapted to packaging bags of different heights.

[0013] In one or more embodiments of the present invention, the pallet module includes a shell mounted on the column module and a roller group relatively arranged on both sides of the shell along the height direction of the shell, and the roller group is rollingly mounted on the column module.

[0014] In one or more embodiments of the present invention, the roller assembly includes first rollers relatively arranged on both sides of the column module along the width direction of the column module, and the axis of the first roller is arranged along the width direction of the housing; and / or,

[0015] The roller assembly includes second rollers arranged on two sides of the column module relatively along the width direction of the column module, and the axes of the second rollers are arranged along the length direction of the shell.

[0016] In one or more embodiments of the present invention, the pallet module includes a plurality of roller groups, and the roller groups are arranged at intervals along the length direction of the column module.

[0017] In one or more embodiments of the present invention, the roller assembly includes at least one non-metallic roller.

[0018] In one or more embodiments of the present invention, the column module includes a column bracket installed on the weighing platform, and slide rails relatively arranged on both sides of the column bracket along the length direction of the column bracket, and the two sides of the pallet module are respectively installed on the slide rails.

[0019] In one or more embodiments of the present invention, the pallet module includes a roller set, and the roller set is installed in conjunction with the slide rail.

[0020] In one or more embodiments of the present invention, the column module further includes limiting members relatively arranged at two ends of the slide rail along the height direction of the slide rail, and the limiting members are arranged in cooperation with the roller assembly.

[0021] In one or more embodiments of the present invention, the cantilever module includes a mounting frame installed on the top of the pallet module, a top plate installed on the mounting frame, and a plurality of suspension components installed on the lower surface of the top plate.

[0022] In one or more embodiments of the present invention, the weighing platform includes a base, a conveying mechanism arranged on the base, and a weight measuring device arranged between the base and the conveying mechanism, the column module is installed on the base, and the cantilever module is arranged above the conveying mechanism.

[0023] In one or more embodiments of the present invention, the weighing device further comprises a driving module, the support plate module is mounted on the driving module, and the driving module is used to drive the support plate module to move up and down reciprocatingly.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The utility model provides a weighing device, which has a simple and compact structure. The distance between the cantilever module and the weighing platform can be adjusted through the support plate module to adapt to packaging bags of different heights. The weighing device has a high modular integration degree, and can meet customers' weight measurement needs for packaging bags of different specifications through simple non-standard modification or combination between different modules. The application range is wider and the practical value and market value are higher. In addition, the modular design is also conducive to transportation, saving transportation space and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the structure of a weighing device for measuring the weight of a packaging bag in one embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of a weighing device in one embodiment of the utility model;

[0029] Figure 3 It is a cross-sectional structural schematic diagram of a weighing device in one embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of a support plate module in one embodiment of the utility model;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of a column module in one embodiment of the utility model;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of a cantilever module in one embodiment of the utility model;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of a driving module in one embodiment of the utility model;

[0034] Figure 8It is a schematic diagram of the three-dimensional structure of a weighing platform in one embodiment of the utility model.

[0035] Description of main reference numerals:

[0036] Weighing platform 1; base 11; conveying mechanism 12; driving member 121; roller 122; second driving member 123; weight measuring device 13; vibration mechanism 14;

[0037] Column module 2; column bracket 21; slide rail 22; bottom plate 221; side plate 222; stopper 23;

[0038] Driving module 3; mounting seat 31; first driving member 32; connecting frame 33;

[0039] Support plate module 4; housing 41; housing body 411; casing 412; roller group 42; first roller 421; second roller 422;

[0040] Cantilever module 5; mounting frame 51; top plate 52; suspension assembly 53; cantilever beam 531; suspension member 532;

[0041] Packaging bag 6. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0043] 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, further definition and explanation thereof is not required in subsequent drawings.

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0045] The existing weighing device for measuring the weight of packaging bags has a relatively fixed height between the weighing platform and the cantilever module, and has poor height compatibility, which cannot meet the weight measurement requirements of packaging bags of different heights; in order to meet the weight measurement requirements of packaging bags of different specifications, the weighing device needs to be modified in a non-standard manner, and the modularization degree is low. Therefore, the applicant proposes a weighing device to solve the above problems.

[0046] The technical solution of the present utility model will be described below in conjunction with the accompanying drawings.

[0047] Reference Figure 1 to Figure 3 As shown, the weighing device in the utility model comprises: a weighing platform 1, a column module 2, a support plate module 4, and a cantilever module 5.

[0048] Among them, the weighing platform 1 is used to measure the weight of the packaging bag 6; the column module 2 is installed on one side of the weighing platform 1; the pallet module 4 is installed on the column module 2; the cantilever module 5 is installed on the pallet module 4 and is arranged above the weighing platform 1, and is used to hang the packaging bag 6; the pallet module 4 is moved up and down on the column module 2, so that the distance between the cantilever module 5 and the weighing platform 1 can adapt to packaging bags 6 of different heights.

[0049] Through modular design, the structure is more compact, the space occupancy rate is lower, and the modular integration is higher, which not only improves the applicability of packaging bags 6 of different heights, but also avoids a large number of non-standard changes. The weighing device can meet the weight measurement needs of packaging bags 6 of different specifications of more customers through simple non-standard modifications or combinations between different modules, with a wider range of applications and higher practical value and market value; and the modular design is also conducive to transportation, saving transportation space and costs.

[0050] It should be noted that the weighing device in this embodiment further includes a driving module 3, which can be installed on the column module 2 or on the weighing platform 1, and can be used to drive the support plate module 4 to move up and down. Of course, in other embodiments, the support plate module 4 can be moved up and down only by manual operation.

[0051] Exemplarily, the driving module 3 in this embodiment is installed on the column module 2. In order to install the driving module 3 on the column module 2, refer to Figure 7 As shown, the driving module 3 in this embodiment includes a mounting seat 31 mounted on the column module 2, a first driving member 32 mounted on the mounting seat 31, and a connecting frame 33 mounted on the first driving member 32 in linkage, and the support plate module 4 is mounted on the connecting frame 33. Among them, the first driving member 32 can be a linear driving member with a linear driving function such as a servo, stepping or cylinder, magnetic drive, hydraulic drive, etc. along the length direction of the column module 2.

[0052] In order to facilitate the control of the up and down displacement of the cantilever module 5, refer to Figure 4As shown, the pallet module 4 in this embodiment includes a housing 41 mounted on the column module 2 and roller groups 42 relatively arranged on both sides of the housing 41 along the height direction of the housing 41, and the roller groups 42 are rollingly mounted with the column module 2. The design of the rolling installation of the roller groups 42 and the column module 2 facilitates more labor-saving and more accurate control of the up and down position of the pallet module 4 on the column module 2, thereby controlling the up and down displacement of the cantilever module 5, so that the distance between the cantilever module 5 and the weighing platform 1 is adapted to the packaging bags 6 of different heights, thereby meeting the weight measurement requirements of the packaging bags 6 of different heights.

[0053] Optional, see Figure 3 , Figure 4 As shown, the roller group 42 in this embodiment includes first rollers 421 relatively arranged on both sides of the column module 2 along the width direction of the column module 2, and the axis of the first roller 421 is arranged along the width direction of the shell 41. Among them, the column module 2 in this embodiment includes two slide rails 23 relatively arranged on both sides of the column bracket 21 along the length direction of the shell 41, and the first rollers 421 in the two roller groups 42 are both rollingly installed with the corresponding slide rails 23. The slide rail 22 includes a bottom plate 221 and side plates 222 arranged on both sides of the bottom plate 221. The first roller 421 is rollingly installed with the bottom plate 221. Through the design of the first roller 421, the pallet module 4 is limited in the length direction of the shell 41 to prevent the pallet module 4 from being offset in the length direction of the shell 41 during the up and down reciprocating motion.

[0054] Furthermore, the roller group 42 in this embodiment further includes second rollers 422 relatively arranged on both sides of the column module 2 along the width direction of the column module 2, and the axis of the second roller 422 is arranged along the length direction of the housing 41. Similarly, since the second rollers 422 are respectively installed with the two side plates 222 for rolling, the design of the second rollers 422 can also limit the position of the support plate module 4 in the width direction of the housing 41, so as to avoid the position deviation of the support plate module 4 in the width direction of the housing 41 during the up and down reciprocating movement.

[0055] Preferably, in order to better and more stably limit the housing 41 in the length direction and the width direction of the housing 41, the pallet module 4 may include a plurality of roller groups 42, and the plurality of roller groups 42 are arranged at intervals along the length direction of the column module 2 (i.e., the slide rail 23). Exemplarily, in this embodiment, there are two roller groups 42, and the two roller groups 42 are arranged at the two ends of the housing 41 relatively along the length direction of the slide rail 23. The roller groups 42 in this embodiment are not limited to only two in number, and three, four, or more than four roller groups 42 may be arranged at intervals on the housing 41 along the length direction of the column module 2 (i.e., the slide rail 23).

[0056] In addition, the roller group 42 in the present application not only includes the first roller 421 and the second roller 422. When the roller group 42 only includes the first roller 421 or only includes the second roller 422, it can avoid position deviation of the shell 41 during the up and down reciprocating movement to a certain extent.

[0057] Reference Figure 4 As shown, the shell 41 in this embodiment includes a shell body 411 and a sleeve 412 relatively arranged at both ends of the shell body 411 along the height direction of the column module 2. The sleeve 412 is covered on the outside of the roller group 42 to prevent dust and make the weighing device as a whole more tidy.

[0058] Preferably, at least one of the first roller 421 and the second roller 422 in the roller group 42 in this embodiment is a non-metal roller, so as to facilitate weighing the packaging bag 6 containing lithium battery materials. Furthermore, both the first roller 421 and the second roller 422 are non-metal rollers, which can avoid direct metal-to-metal contact between the roller group 42 and the slide rail 22, thereby reducing the safety risk of weighing.

[0059] Existing weighing devices usually use double-column modules that are relatively arranged along the length or width direction of the packaging bag 6. In this case, the size of the packaging bag 6 and the conveying mechanism 12 (described below) of the weighing platform 1 will be limited in the length or width direction of the packaging bag 6; similarly, other existing weighing devices will also use four-column modules with column modules relatively arranged along the length and width directions of the packaging bag 6. In this case, the size of the packaging bag 6 and the conveying mechanism 12 (described below) of the weighing platform 1 will be limited in both the length and width directions of the packaging bag 6.

[0060] To solve the above problems, refer to Figure 5 As shown, the column module 2 in this embodiment includes a column bracket 21 fixedly mounted on one side of the weighing platform 1. Since the column module 2 is only arranged on one side of the weighing platform 1, the length or width of the packaging bag 6 is not restricted, and packaging bags 6 of different lengths or widths can be placed on the weighing device. The number of the column bracket 21 can be one or more.

[0061] For example, refer to Figure 5 , and combined Figure 2 As shown, the number of the column bracket 21 in this embodiment is one, only one pallet module 4 is provided and installed with the column bracket 21, and the cantilever module 5 is installed with the pallet module 4 to achieve the purpose of hanging the packaging bag 6. The above-mentioned slide rails 22 are relatively arranged on both sides of the column bracket 21 along the length direction of the column bracket 21, so that the roller groups 42 of the pallet module 4 are respectively rolled and installed on the slide rails 22.

[0062] In other embodiments, when multiple column brackets 21 are provided, multiple pallet modules 4 are also provided and installed with corresponding column brackets 21, and one side of the cantilever module 5 is installed with multiple pallet modules 4 to achieve the purpose of hanging the packaging bag 6.

[0063] Preferably, since the roller groups 42 are respectively mounted on the corresponding slide rails 22 in a rolling manner, Figure 5 As shown, the column module 2 in this embodiment further includes a limiter 23 relatively arranged at both ends of the slide rail 22 along the height direction of the slide rail 22, and the limiter 23 is arranged in cooperation with the roller group 42. According to this design, the limiter 23 can be limited to the upper and lower positions of the roller group 42 rollingly installed on the slide rail 22, thereby preventing the pallet module 4 and the column module 2 from being separated.

[0064] Preferably, the first roller 421 in the roller assembly 42 is disposed on the periphery of the housing 41, so that when the housing 41 moves to the end of the slide rail, the stopper 23 abuts against the first roller 421 to limit the displacement of the housing 41. Of course, in other embodiments, the second roller 422 is disposed on the periphery of the housing 41 to limit the displacement of the housing 41.

[0065] Reference Figure 6 As shown, the cantilever module 5 in this embodiment includes a mounting frame 51 installed on the top of the pallet module 4, a top plate 52 installed on the mounting frame 51, and a plurality of suspension components 53 installed on the lower surface of the top plate 52, and the packaging bag 6 can be suspended and placed on the suspension components 53.

[0066] It should be noted that the packaging bag 6 has different specifications not only in the height direction, but also in the length direction and width direction of the packaging bag 6. In order to enable the weighing device in this embodiment to adapt to packaging bags 6 of different lengths or widths, refer to Figure 6 As shown, the suspension assembly 53 in this embodiment includes a plurality of cantilever beams 531 installed below the top plate 52, and a plurality of suspension members 532 slidably installed on the cantilever beams 531. By adjusting the position of the suspension members 532 on the cantilever beams 531, the length and width of the packaging bag 6 can be adapted. In another embodiment, the column module 2 can be translated in the horizontal direction to adjust the distance between it and the weighing platform 1, so as to adapt to packaging bags 6 of different specifications.

[0067] Specifically, refer to Figure 6As shown, the top plate 52 in this embodiment is rectangular (may be square, rectangular or other shapes), and there are four cantilever beams 531, each of which extends from the geometric center of the lower surface of the top plate 52 to the corresponding corner or edge, and the four cantilever beams 531 are arranged to be symmetrical in pairs to suspend the packaging bag 6 in a balanced manner. The hanging member 532 is located at the end of the cantilever beam 531 extending outward. By changing the position of the hanging member 532 on the cantilever beam 531, the length and width of the packaging bag 6 are adapted. Of course, the present application is not limited to this. The top plate 52 in other embodiments may also be circular, polygonal, or triangular, etc. The cantilever beams 531 may also be two, three, or more than four.

[0068] Reference Figure 8 As shown, the weighing platform 1 in this embodiment includes a base 11, a conveying mechanism 12 arranged on the base 11, and a weight measuring device 13 arranged between the base 11 and the conveying mechanism 12. The column module 2 is fixedly mounted on the base 11, and the cantilever module 5 is arranged above the conveying mechanism 12. Among them, the weight measuring device 13 can be a weighing sensor or a pressure sensor, etc., preferably a weighing sensor. The weight measuring device 13 can be used to weigh the packaging bag 6 conveyed to the conveying mechanism 12, so as to know whether the material in the packaging bag 6 reaches the specified weight.

[0069] Specifically, refer to Figure 8 As shown, the conveying mechanism 12 in this embodiment includes two connecting rods 121 arranged opposite to each other, a plurality of rollers 122 located between the two connecting rods 121, and a second driving member 123, wherein the output shaft of the second driving member 123 is installed in linkage with the roller 122. The second driving member 123 can be a rotating driving member with a rotating driving function such as a gear drive or a ratchet drive. Since at least one roller 122 among the plurality of rollers 122 is installed in linkage with the output shaft of the second driving member 123, the roller 122 can rotate under the drive of the second driving member 123, and the packaging bag 6 moves along the length direction of the driving member 121 under the drive of the rotating roller 122, thereby achieving the effect of conveying the packaging bag 6.

[0070] Preferably, refer to Figure 8 As shown, the weighing platform 1 in this embodiment also includes a vibration mechanism 14 installed in linkage with the conveying mechanism 12. When the weight of the weighed packaging bag 6 reaches a certain threshold, the vibration mechanism 14 can be started. The vibration mechanism 14 is located between the conveying mechanism 12 and the base 11. The vibration mechanism 14 can drive the conveying mechanism 12 to move up and down to shake the packaging bag 6 on the conveying mechanism 12, thereby increasing the bulk density of the material in the packaging bag 6. The weighing platform 1 in this embodiment has multiple functions such as weighing, conveying, and shaking, and has a high degree of integration to meet the different needs of customers.

[0071] It can be seen from the above technical solutions that the utility model has the following beneficial effects:

[0072] The utility model provides a weighing device, which has a simple and compact structure. The distance between the cantilever module and the weighing platform can be adjusted through the support plate module to adapt to packaging bags of different heights. The weighing device has a high modular integration degree, and can meet customers' weight measurement needs for packaging bags of different specifications through simple non-standard modification or combination between different modules. The application range is wider and the practical value and market value are higher. In addition, the modular design is also conducive to transportation, saving transportation space and cost.

[0073] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0074] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A weighing device, characterized in that: The weighing device comprises: A weighing platform (1) for measuring the weight of a packaging bag (6); A column module (2) installed on one side of the weighing platform (1); A support plate module (4) is installed on the column module (2); A cantilever module (5) is installed on the support plate module (4) and is arranged above the weighing platform (1), and is used to suspend the packaging bag (6); wherein: The support plate module (4) is moved up and down and back and forth on the column module (2), so that the distance between the cantilever module (5) and the weighing platform (1) can be adapted to packaging bags (6) of different heights.

2. The weighing device according to claim 1, characterized in that: The support plate module (4) comprises a shell (41) mounted on the column module (2) and a roller group (42) arranged on both sides of the shell (41) in a height direction of the shell (41); the roller group (42) is rollingly mounted on the column module (2).

3. The weighing device according to claim 2, characterized in that: The roller assembly (42) comprises first rollers (421) arranged relatively on two sides of the column module (2) along the width direction of the column module (2), and the axis of the first rollers (421) is arranged along the width direction of the housing (41); and / or, The roller assembly (42) comprises second rollers (422) arranged relatively on two sides of the column module (2) along the width direction of the column module (2), and the axes of the second rollers (422) are arranged along the length direction of the housing (41).

4. The weighing device according to claim 2, characterized in that: The support plate module (4) comprises a plurality of roller groups (42), and the roller groups (42) are arranged at intervals along the length direction of the column module (2).

5. The weighing device according to claim 2, characterized in that: The roller set (42) includes at least one non-metallic roller.

6. The weighing device according to claim 1, characterized in that: The column module (2) comprises a column bracket (21) mounted on the weighing platform (1), and slide rails (22) arranged on both sides of the column bracket (21) along the length direction of the column bracket (21), and the two side portions of the support plate module (4) are respectively mounted on the slide rails (22).

7. The weighing device according to claim 6, characterized in that: The support plate module (4) comprises a roller group (42), and the roller group (42) is installed in conjunction with the slide rail (22).

8. The weighing device according to claim 7, characterized in that: The column module (2) further comprises a limiting member (23) which is relatively arranged at two ends of the slide rail (22) along the height direction of the slide rail (22), and the limiting member (23) is arranged in cooperation with the roller group (42).

9. The weighing device according to claim 1, characterized in that: The cantilever module (5) comprises a mounting frame (51) mounted on the top of the support plate module (4), a top plate (52) mounted on the mounting frame (51), and a plurality of suspension components (53) mounted on the lower surface of the top plate (52).

10. The weighing device according to claim 1, characterized in that: The weighing platform (1) comprises a base (11), a conveying mechanism (12) arranged on the base (11), and a weight measuring device (13) arranged between the base (11) and the conveying mechanism (12); the column module (2) is mounted on the base (11), and the cantilever module (5) is arranged above the conveying mechanism (12).

11. The weighing device according to claim 1, characterized in that: The weighing device further comprises a driving module (3), the support plate module (4) being mounted on the driving module (3), and the driving module (3) being used to drive the support plate module (4) to move up and down and back and forth.