Automatic weighing and packaging system for conveying belt

Abstract

The utility model relates to an automatic weighing and packing system for a conveyor belt, which relates to the technical field of bearing and packing, and comprises a conveyor belt, a carrying belt is arranged at one end of the conveyor belt, a support frame body is arranged at one end of the conveyor belt close to the carrying belt, and a weighing mechanism matched with the conveyor belt is arranged on the support frame body; a weighing mechanism is arranged on the supporting frame body, a packaging mechanism matched with the weighing mechanism is arranged on the supporting frame body, the packaging mechanism comprises a packaging platform which is arranged on the supporting frame body and matched with the weighing mechanism, the packaging platform moves in the length direction of the supporting frame body, and a packaging assembly matched with the packaging platform is arranged on the supporting frame body; the packaging platform is provided with a carrying assembly matched with the conveying belt. According to the automatic weighing and packaging machine, automatic weighing and packaging operation is achieved, the accurate weighing effect and the efficient packaging platform design are achieved, meanwhile, the position relation between the conveying belt and the packaging mechanism under different conditions is considered, the flexible carrying assembly structural design is provided, and the automatic weighing and packaging machine can meet the use requirements of various scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of load-bearing packaging, in particular to an automatic weighing and packaging system for a conveyor belt. Background Art

[0002] With the development of animal husbandry, large-scale farming has gradually become the mainstream. In order to meet the growing demand for feed in farms, achieving mass production of feed is an important issue facing animal husbandry. However, the traditional manual weighing and packaging method is inefficient, which seriously restricts the automation and information construction of the entire feed production. The conveyor belt is an important link in realizing automatic assembly line production.

[0003] The weighing and packaging device used in conjunction with the conveyor belt can automatically sort and package the finished feed in a quantitative manner, and can also transport the finished feed to the next process or storage area. This not only greatly simplifies the operation steps, but also makes the entire production system continuous and modular, effectively improving production efficiency. Currently, common weighing and packaging devices have problems such as complex structure, large weighing error, and loose packaging and sealing. These problems seriously affect the service life of the device and product quality.

[0004] How to solve the above technical problems is the subject faced by the present utility model. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the utility model provides a vibration-suppressing carbon fiber pipeline support with reasonable design, safety and reliability. Through the coordinated action of multiple components such as weighing, packaging and positioning, the accurate weighing and rapid packaging of items are realized, and a flexible way of carrying items is provided according to the change of the position relationship between the conveyor belt and the packaging mechanism, thereby solving the weighing and packaging problem in the feed production process. The solution fully considers aspects such as stability, accuracy and flexibility, aiming to improve production efficiency and product quality.

[0006] The utility model solves the technical problem by adopting the following technical solution: an automatic weighing and packaging system for a conveyor belt, comprising a conveyor belt, one end of which is provided with a plurality of conveying belts arranged in parallel with the conveyor belt, an end of which is close to the conveyor belt and provided with a supporting frame, and the length direction of the supporting frame is arranged perpendicular to the conveying direction of the conveyor belt, and a weighing mechanism cooperating with the conveyor belt is arranged on the supporting frame;

[0007] The support frame is provided with a packaging mechanism cooperating with the weighing mechanism, the packaging mechanism includes a packaging platform provided on the support frame and cooperating with the weighing mechanism, and the packaging platform moves along the length direction of the support frame, the support frame is provided with a packaging component cooperating with the packaging platform, and the packaging platform is provided with a handling component cooperating with the conveyor belt.

[0008] Furthermore, the weighing mechanism includes a weighing frame arranged on the supporting frame body, the weighing frame is provided with a lifting frame, the weighing frame is provided with a lifting assembly cooperating with the lifting frame, the lifting frame is vertically provided with a weighing column, the bottom end of the weighing column is provided with an expansion assembly cooperating with the packaging bag, and the weighing column is provided with a weighing assembly cooperating with the expansion assembly.

[0009] Further, the expansion support assembly includes a movable ring cylinder sleeved on the weighing column, the movable ring cylinder is evenly provided with a plurality of first expansion support plates along the circumferential direction of the movable ring cylinder, the bottom end of the weighing column is evenly provided with a plurality of second expansion support plates along the circumferential direction of the weighing column, the middle of the first expansion support plate is hingedly connected to the middle of the second expansion support plate, and the weighing column is provided with a linear drive member that cooperates with the movable ring cylinder;

[0010] The weighing assembly includes a load-bearing ring cylinder which is sleeved on the weighing column and connected to the linear drive member, a load-bearing ring plate is provided at the bottom end of the load-bearing ring cylinder, and a limiting ring plate which cooperates with the movable ring cylinder is provided at the top end of the load-bearing ring cylinder, a first pressure sensor which cooperates with the movable ring cylinder is provided on the load-bearing ring plate, a weighing ring groove is provided at the bottom end of the weighing column, a connecting ring plate which is connected to a plurality of second expansion plates is provided in the weighing ring groove, and a second pressure sensor which cooperates with the first pressure sensor is provided in the weighing ring groove.

[0011] Furthermore, a storage cavity for accommodating a linear drive assembly is provided in the weighing column, a plurality of guide grooves are evenly provided at the lower end of the weighing column along the circumferential direction of the weighing column, and the length direction of the guide grooves is consistent with the axial direction of the weighing column, a connecting round seat is provided at the moving end of the linear drive component, a connecting rod connected to the connecting round seat is provided on the load-bearing ring cylinder, and the connecting rod passes through the guide groove, and a limiting cylinder assembly cooperating with the expansion support assembly is provided on the weighing column.

[0012] Furthermore, the limiting cylinder assembly includes a limiting cylinder which is sleeved on the weighing column and cooperates with the expansion support assembly, and connecting brackets are evenly arranged at the top end of the limiting cylinder along the circumferential direction of the limiting cylinder, and several connecting brackets are commonly connected to the same load-bearing ring seat, and the load-bearing ring seat is sleeved on the weighing column, and a load-bearing seat is arranged on the weighing column, and a third pressure sensor which cooperates with the load-bearing ring seat is arranged on the load-bearing seat.

[0013] Furthermore, the packaging platform includes two sets of tracks symmetrically arranged on the support frame along the length direction of the support frame, and the two sets of tracks are respectively located on both sides of the weighing mechanism, a sliding seat is arranged in the track, a packaging bracket is arranged on the sliding seat, and a placement platform cooperating with the weighing mechanism is arranged between the two packaging brackets; a gap unit cooperating with the packaging assembly is arranged on the packaging platform.

[0014] Furthermore, a straightening unit cooperating with the packaging bag is provided on the packaging platform, and the straightening unit includes a straightening frame arranged on the placement platform or the packaging bracket, and the straightening frame is provided with a straightening telescopic rod, and a straightening semi-circular ring cylinder cooperating with the packaging bag is provided at the movable end of the straightening telescopic rod.

[0015] Furthermore, the seam unit comprises a seam bracket symmetrically arranged on the packaging bracket, the seam bracket is provided with a plurality of seam telescopic rods, the plurality of seam telescopic rods are connected to the same seam plate, the length of the seam plate is greater than the extrusion length of the packaging bag, and the seam plate is provided with a seam groove matched with the packaging component, and laser emitting parts are provided at both ends of the seam plate;

[0016] The packaging assembly includes a packaging frame arranged on the supporting frame, an electric packaging machine matched with the slit groove is arranged on the packaging frame, a laser receiving component matched with the laser emitting component is arranged on the packaging frame, and the laser receiving component is electrically connected to a control chip, the control chip is electrically connected to the electric packaging machine, and a thermal resistance wire disconnecting component matched with the packaging machine is arranged on the packaging frame, and the thermal resistance wire disconnecting component is electrically connected to the control chip.

[0017] Preferably, two structural designs of the handling assembly are provided.

[0018] First, the transport assembly includes a delivery unit arranged on the placement platform for delivering packaging bags, and a buffer ramp cooperating with the delivery unit is arranged on the support frame, and the buffer ramp is located at one end of the conveyor belt.

[0019] Secondly, the delivery unit includes a delivery rack arranged on the placement platform, a pushing hydraulic rod is arranged on the delivery rack, a pushing rack cooperating with the packaging bag is arranged at the moving end of the pushing hydraulic rod, and a plurality of rolling cylinders cooperating with the pushing hydraulic rod are arranged on the placement platform.

[0020] The utility model realizes the weighing and packaging operation of the articles in the packaging bag through the coordinated action of the conveyor belt, the handling belt, the supporting frame and other components. The weighing mechanism measures the weight of the articles in the packaging bag, and the packaging mechanism performs corresponding packaging operations according to the weighing result.

[0021] The weighing mechanism includes a weighing frame, a lifting frame, a lifting assembly, a weighing column, a support assembly, a weighing assembly, etc. These components realize the lifting and lowering movement of the weighing frame through linear drive parts such as hydraulic lifting cylinders, and use the cooperation of the support assembly and the weighing assembly to ensure the accuracy and stability of weighing.

[0022] The packaging platform includes rails, sliding seats, packaging brackets, and placement platforms. The packaging bracket adopts a telescopic structure and can be raised and lowered. By controlling the linear drive component, the lifting and lowering movement of the placement platform can be controlled to adapt to packaging bags of different heights.

[0023] The packaging platform is equipped with a straightening unit and a clamping unit for aligning and fixing the packaging bags. The straightening unit adjusts the position of the packaging bags through the straightening frame and the straightening telescopic rod, and the clamping unit clamps and fixes the packaging bags through the clamping bracket, the clamping telescopic rod and the clamping plate.

[0024] According to different situations, the system provides two structural designs of handling components. When the conveyor belt is located directly below the packaging mechanism, the delivery unit and buffer ramp are used to place the packaging bags from the conveyor belt to the packaging platform; when the conveyor belt and the packaging platform are at the same height, the delivery rack, push hydraulic rod and push rack are used to push the packaging bags from the conveyor belt to the packaging platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model under the first viewing angle;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model under the second viewing angle;

[0027] Figure 3 It is a structural schematic diagram of the weighing assembly of the utility model;

[0028] Figure 4 It is an exploded structural diagram of the weighing assembly of the utility model;

[0029] Figure 5It is a structural schematic diagram of the packaging mechanism of the utility model from a first perspective;

[0030] Figure 6 It is a structural schematic diagram of the packaging mechanism of the utility model from a second viewing angle;

[0031] Figure 7 It is a structural schematic diagram of the packaging component of the utility model;

[0032] The accompanying drawings are marked as follows: 100, conveyor belt; 200, conveyor belt; 300, support frame; 400, weighing mechanism; 410, weighing frame; 420, lifting frame; 430, weighing column; 431, guide groove; 440, expansion support assembly; 441, movable ring cylinder; 442, first expansion support plate; 443, second expansion support plate; 450, weighing assembly; 451, load-bearing ring cylinder; 452, load-bearing ring plate; 453, limit ring plate; 454, weighing ring groove; 455, connecting ring plate; 460, limit cylinder assembly; 461, limit cylinder; 462, connecting bracket; 463, bearing Heavy ring seat; 464, load-bearing seat; 500, packing mechanism; 510, packing platform; 511, track; 512, sliding seat; 513, packing bracket; 514, placing platform; 520, gap unit; 521, gap bracket; 522, gap plate; 530, righting unit; 531, righting frame; 532, righting telescopic rod; 533, righting semicircular ring cylinder; 540, packing assembly; 541, packing frame; 542, electric packing machine; 543, thermal resistance wire breaking piece; 550, handling assembly; 551, buffer ramp; 552, delivery rack; 553, pushing rack. DETAILED DESCRIPTION

[0033] See also Figures 1 to 4 As shown, an automatic weighing and packaging system for a conveyor belt includes a conveyor belt 100, one end of the conveyor belt 100 is provided with a plurality of conveying belts 200 arranged parallel to the conveyor belt 100, and the end of the conveyor belt 100 close to the conveying belt 200 is provided with a support frame 300, and the length direction of the support frame 300 is perpendicular to the conveying direction of the conveyor belt 100, and a weighing mechanism 400 cooperating with the conveyor belt 100 is arranged on the support frame 300;

[0034] A packaging mechanism 500 cooperating with the weighing mechanism 400 is provided on the support frame 300. The packaging mechanism 500 includes a packaging platform 510 provided on the support frame 300 and cooperating with the weighing mechanism 400, and the packaging platform 510 moves along the length direction of the support frame 300. A packaging component 540 cooperating with the packaging platform 510 is provided on the support frame 300, and the packaging platform 510 is provided with a handling component 550 cooperating with the conveyor belt 100.

[0035] Furthermore, the weighing mechanism 400 includes a weighing frame 410 arranged on the supporting frame 300, the weighing frame 410 is provided with a lifting frame 420, the weighing frame 410 is provided with a lifting assembly cooperating with the lifting frame 420, the lifting frame 420 is vertically provided with a weighing column 430, the bottom end of the weighing column 430 is provided with an expansion assembly 440 cooperating with the packaging bag, and the weighing column is provided with a weighing assembly 450 cooperating with the expansion assembly 440.

[0036] Preferably, the lifting assembly is configured as a structure of a linear drive member such as a hydraulic lifting cylinder.

[0037] Further, the expansion support assembly 440 includes a movable ring cylinder 441 sleeved on the weighing column 430, the movable ring cylinder 441 is evenly provided with a plurality of first expansion support plates 442 along the circumferential direction of the movable ring cylinder 441, the bottom end of the weighing column 430 is evenly provided with a plurality of second expansion support plates 443 along the circumferential direction of the weighing column 430, the middle of the first expansion support plate 442 is hingedly connected to the middle of the second expansion support plate 443, and the weighing column 430 is provided with a linear driving member that cooperates with the movable ring cylinder 441;

[0038] The weighing assembly 450 includes a load-bearing ring cylinder 451 which is sleeved on the weighing column 430 and connected to the linear drive member, a load-bearing ring plate 452 is arranged at the bottom end of the load-bearing ring cylinder 451, and a limiting ring plate 453 which cooperates with the movable ring cylinder 441 is arranged at the top end of the load-bearing ring cylinder 451, a first pressure sensor which cooperates with the movable ring cylinder 441 is arranged on the load-bearing ring plate 452, a weighing ring groove 454 is arranged at the bottom end of the weighing column 430, a connecting ring plate 455 which is connected to a plurality of second expansion plates 443 is arranged in the weighing ring groove 454, and a second pressure sensor which cooperates with the first pressure sensor is arranged in the weighing ring groove 454.

[0039] Furthermore, a storage cavity for accommodating the linear drive assembly is provided in the weighing column 430, and a plurality of guide grooves 431 are evenly provided at the lower end of the weighing column 430 along the circumferential direction of the weighing column 430, and the length direction of the guide groove 431 is consistent with the axial direction of the weighing column 430, and a connecting round seat is provided at the moving end of the linear drive member, and a connecting rod connected to the connecting round seat is provided on the load-bearing ring cylinder 451, and the connecting rod passes through the guide groove 431, and a limiting cylinder assembly 460 cooperating with the expansion support assembly 440 is provided on the weighing column 430.

[0040] Furthermore, the limiting cylinder assembly 460 includes a limiting cylinder 461 which is sleeved on the weighing column and cooperates with the expansion support assembly 440. Connecting brackets 462 are evenly arranged at the top of the limiting cylinder 461 along the circumferential direction of the limiting cylinder 461. Several connecting brackets 462 are commonly connected to the same load-bearing ring seat 463. The load-bearing ring seat 463 is sleeved on the weighing column 430, and a load-bearing seat 464 is arranged on the weighing column 430. A third pressure sensor which cooperates with the load-bearing ring seat 463 is arranged on the load-bearing seat 464.

[0041] Furthermore, the packaging platform 510 includes two sets of tracks 511 symmetrically arranged on the support frame 300 along the length direction of the support frame, and the two sets of tracks 511 are respectively located on both sides of the weighing mechanism 400, a sliding seat 512 is arranged in the track 511, a packaging bracket 513 is arranged on the sliding seat 512, and a placement platform 514 cooperating with the weighing mechanism is arranged between the two packaging brackets 513; a gap unit 520 cooperating with the packaging component 540 is arranged on the packaging platform 510.

[0042] Preferably, the packing bracket 513 is configured as a telescopic structure, and a linear drive component for controlling the placement platform 514 to perform lifting and lowering motion is provided on the packing bracket 513 .

[0043] Furthermore, a straightening unit 530 cooperating with the packaging bag is provided on the packaging platform 510, and the straightening unit 530 includes a straightening frame 531 arranged on the placement platform 514 or the packaging bracket 513, and the straightening frame 531 is provided with a straightening telescopic rod 532, and a straightening semi-circular ring cylinder 533 cooperating with the packaging bag is provided at the movable end of the straightening telescopic rod 532.

[0044] Furthermore, the gap unit 520 includes a gap bracket 521 symmetrically arranged on the packaging bracket 513, and a plurality of gap telescopic rods are arranged on the gap bracket 521, and the plurality of gap telescopic rods are connected to the same gap plate 522, and the length of the gap plate 522 is greater than the extrusion length of the packaging bag, and a gap groove cooperating with the packaging component 540 is opened on the gap plate 522, and laser emitting components are arranged at both ends of the gap plate 522;

[0045] The packing assembly 540 includes a packing frame 541 arranged on the supporting frame body 300, and an electric packing machine 542 cooperating with the slit groove is arranged on the packing frame 541, and a laser receiving component cooperating with the laser emitting component is arranged on the packing frame 541, and the laser receiving component is electrically connected to the control chip, and the control chip is electrically connected to the electric packing machine 542, and a thermal resistance wire disconnecting component 543 cooperating with the packing machine is arranged on the packing frame 541, and the thermal resistance wire disconnecting component 543 is electrically connected to the control chip.

[0046] Taking into consideration the positional relationship between the conveyor belt 100 and the packaging mechanism 500 , two structural designs of the transport components 550 are preferably provided.

[0047] First, when the conveyor belt 100 is located directly below the packaging mechanism 500 .

[0048] The transport assembly 550 includes a delivery unit disposed on the placement platform 514 for delivering packaging bags. A buffer ramp 551 cooperating with the delivery unit is disposed on the support frame 300 , and the buffer ramp 551 is located at one end of the conveyor belt 100 .

[0049] The delivery unit includes a delivery port opened on the placement platform 514, a delivery cover is arranged at the delivery port, a delivery telescopic rod is arranged on the packaging platform 510, and the movable end of the delivery telescopic rod is fixedly connected to the delivery cover.

[0050] When in use, the packaging bag is placed onto the buffer ramp 551 using the weight of the items in the packaging bag, and then continues to be placed onto the conveyor belt 100 using its weight from the buffer ramp 551.

[0051] Second, when the conveyor belt 100 and the packaging platform 510 are at the same height.

[0052] The delivery unit includes a delivery frame 552 arranged on the placement platform 514, a pushing hydraulic rod is arranged on the delivery frame 552, a pushing frame 553 cooperating with the packaging bag is arranged at the moving end of the pushing hydraulic rod, and a plurality of rolling cylinders cooperating with the pushing hydraulic rod are arranged on the placement platform 514.

[0053] In general, the arrangement of the support frame 300 and the weighing mechanism 400 in the system enables the feed on the conveyor belt to be accurately weighed, while the design of the packaging mechanism 500 can automatically package according to the weighing result, thereby improving production efficiency and accuracy.

[0054] In this system, the weighing mechanism 400 includes a weighing frame 410, a lifting frame 420, a weighing column 430 and an expansion assembly 440. These components are designed to provide accurate weighing functions. The lifting and lowering of the weighing column 430 and the movement of the expansion assembly 440 are realized through the structure of linear drive parts such as hydraulic lifting cylinders. At the same time, the design of the pressure sensor and the limit cylinder assembly 460 in the weighing assembly 450 ensures the accuracy and stability of weighing.

[0055] In addition, the packaging mechanism 500 includes a packaging platform 510, a packaging assembly 540 and a clamping unit 520. The design of these components allows the packaging process to be automatically performed according to the weighing result, and through the cooperation of the laser emitting component and the laser receiving component, an accurate packaging operation is achieved. In addition, the design of the telescopic structure of the packaging bracket 513 and the linear drive assembly allows the packaging platform 510 to flexibly perform lifting and lowering movements to adapt to packaging bags of different sizes.

[0056] Finally, according to the positional relationship between the conveyor belt 100 and the packaging mechanism 500, the system also provides two structural designs of the handling components 550 to adapt to different working scenarios, further improving the applicability and flexibility of the system.

[0057] The working principle of the whole system is that when the feed is transported to the weighing mechanism 400 through the conveyor belt, the weighing mechanism 400 will accurately weigh the feed, and then according to the weighing result, the packaging mechanism 500 will automatically perform the packaging operation, and finally realize the automatic weighing and packaging of the feed. This series of innovatively designed components and structures enable the whole system to efficiently and accurately complete the weighing and packaging of the feed, solving the problems of low efficiency and large errors existing in the traditional system.

[0058] The technical features not described in the present invention can be achieved through or by adopting the existing technology, which will not be described here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. An automatic weighing and packaging system for a conveyor belt, characterized in that: The invention comprises a conveyor belt (100), wherein one end of the conveyor belt (100) is provided with a plurality of conveyor belts (200) arranged parallel to the conveyor belt (100); one end of the conveyor belt (100) close to the conveyor belt (200) is provided with a support frame (300), and the length direction of the support frame (300) is arranged perpendicular to the conveying direction of the conveyor belt (100); and a weighing mechanism (400) cooperating with the conveyor belt (100) is arranged on the support frame (300); The support frame (300) is provided with a packaging mechanism (500) cooperating with the weighing mechanism (400), the packaging mechanism (500) comprises a packaging platform (510) arranged on the support frame (300) and cooperating with the weighing mechanism (400), and the packaging platform (510) moves along the length direction of the support frame (300), the support frame (300) is provided with a packaging component (540) cooperating with the packaging platform (510), and the packaging platform (510) is provided with a handling component (550) cooperating with the conveyor belt (100).

2. The automatic weighing and packaging system for conveyor belt according to claim 1, characterized in that: The weighing mechanism (400) comprises a weighing frame (410) arranged on the supporting frame (300), the weighing frame (410) being provided with a lifting frame (420), the weighing frame (410) being provided with a lifting assembly cooperating with the lifting frame (420), the lifting frame (420) being provided with a weighing column (430) vertically, the bottom end of the weighing column (430) being provided with an expansion assembly (440) cooperating with a packaging bag, and the weighing column being provided with a weighing assembly (450) cooperating with the expansion assembly (440).

3. The automatic weighing and packaging system for a conveyor belt as claimed in claim 2, characterized in that: The expansion support assembly (440) includes a movable ring tube (441) sleeved on the weighing column (430), the movable ring tube (441) is evenly provided with a plurality of first expansion support plates (442) along the circumferential direction of the movable ring tube (441), the bottom end of the weighing column (430) is evenly provided with a plurality of second expansion support plates (443) along the circumferential direction of the weighing column (430), the middle of the first expansion support plate (442) is hingedly connected to the middle of the second expansion support plate (443), and the weighing column (430) is provided with a linear drive member that cooperates with the movable ring tube (441); The weighing assembly (450) includes a load-bearing ring tube (451) which is sleeved on the weighing column (430) and connected to the linear drive member, a load-bearing ring plate (452) is arranged at the bottom end of the load-bearing ring tube (451), and a limiting ring plate (453) which cooperates with the movable ring tube (441) is arranged at the top end of the load-bearing ring tube (451), a first pressure sensor which cooperates with the movable ring tube (441) is arranged on the load-bearing ring plate (452), a weighing ring groove (454) is arranged at the bottom end of the weighing column (430), a connecting ring plate (455) which is connected to a plurality of second expansion plates (443) is arranged in the weighing ring groove (454), and a second pressure sensor which cooperates with the first pressure sensor is arranged in the weighing ring groove (454).

4. The automatic weighing and packaging system for a conveyor belt as claimed in claim 3, characterized in that: The weighing column (430) is provided with a storage cavity for accommodating a linear drive assembly. A plurality of guide grooves (431) are evenly provided at the lower end of the weighing column (430) along the circumferential direction of the weighing column (430). The length direction of the guide groove (431) is consistent with the axial direction of the weighing column (430). A connecting round seat is provided at the movable end of the linear drive member. A connecting rod connected to the connecting round seat is provided on the load-bearing ring cylinder (451), and the connecting rod passes through the guide groove (431). A limiting cylinder assembly (460) cooperating with the expansion support assembly (440) is provided on the weighing column (430).

5. The automatic weighing and packaging system for conveyor belt according to claim 4, characterized in that: The limiting cylinder assembly (460) includes a limiting cylinder (461) which is sleeved on the weighing column and cooperates with the expansion support assembly (440); connecting brackets (462) are evenly arranged at the top end of the limiting cylinder (461) along the circumferential direction of the limiting cylinder (461); a plurality of connecting brackets (462) are commonly connected to the same load-bearing ring seat (463); the load-bearing ring seat (463) is sleeved on the weighing column (430); and a load-bearing seat (464) is arranged on the weighing column (430); and a third pressure sensor cooperating with the load-bearing ring seat (463) is arranged on the load-bearing seat (464).

6. The automatic weighing and packaging system for conveyor belt according to claim 1, characterized in that: The packaging platform (510) comprises two groups of tracks (511) symmetrically arranged on the support frame (300) along the length direction of the support frame, and the two groups of tracks (511) are respectively located at two sides of the weighing mechanism (400), a sliding seat (512) is arranged in the track (511), a packaging bracket (513) is arranged on the sliding seat (512), and a placement platform (514) cooperating with the weighing mechanism is arranged between the two packaging brackets (513); a gap unit (520) cooperating with the packaging component (540) is arranged on the packaging platform (510).

7. The automatic weighing and packaging system for conveyor belt according to claim 6, characterized in that: The packaging platform (510) is provided with a straightening unit (530) cooperating with the packaging bag, and the straightening unit (530) comprises a straightening frame (531) arranged on the placement platform (514) or the packaging bracket (513), and the straightening frame (531) is provided with a straightening telescopic rod (532), and a straightening semi-circular ring cylinder (533) cooperating with the packaging bag is arranged at the movable end of the straightening telescopic rod (532).

8. The automatic weighing and packaging system for conveyor belt according to claim 6, characterized in that: The gap unit (520) comprises a gap bracket (521) symmetrically arranged on the packaging bracket (513), a plurality of gap telescopic rods are arranged on the gap bracket (521), the plurality of gap telescopic rods are connected to the same gap plate (522), the length of the gap plate (522) is greater than the extrusion length of the packaging bag, and a gap groove cooperating with the packaging component (540) is opened on the gap plate (522), and laser emitting components are arranged at both ends of the gap plate (522); The packaging component (540) includes a packaging frame (541) arranged on the support frame (300), and the packaging frame (541) is provided with an electric packaging machine (542) that cooperates with the slit groove, and the packaging frame (541) is provided with a laser receiving component that cooperates with the laser emitting component, and the laser receiving component is electrically connected to a control chip, and the control chip is electrically connected to the electric packaging machine (542), and the packaging frame (541) is provided with a thermal resistance wire disconnecting component (543) that cooperates with the packaging machine, and the thermal resistance wire disconnecting component (543) is electrically connected to the control chip.

9. The automatic weighing and packaging system for conveyor belt according to claim 6, characterized in that: The transport assembly (550) comprises a delivery unit arranged on the placement platform (514) for delivering packaging bags, and a buffer ramp (551) cooperating with the delivery unit is arranged on the support frame (300), and the buffer ramp (551) is located at one end of the conveyor belt (100).

10. The automatic weighing and packaging system for conveyor belt according to claim 9, characterized in that: The delivery unit comprises a delivery frame (552) arranged on the placement platform (514), a pushing hydraulic rod is arranged on the delivery frame (552), a pushing frame (553) cooperating with the packaging bag is arranged at the movable end of the pushing hydraulic rod, and a plurality of rolling cylinders cooperating with the pushing hydraulic rod are arranged on the placement platform (514).

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