Ton bag carrying method and equipment

Abstract

The invention relates to the technical field of ton bag carrying equipment, in particular to a ton bag carrying method and equipment, the ton bag carrying equipment comprises a carrying mechanism, a sampling mechanism and a bag sealing assembly, and the carrying mechanism is used for transferring a target bag between the sampling mechanism and an external transport vehicle; the sampling mechanism is used for puncturing a target bag and obtaining a sample in the target bag; the bag sealing assembly is used for sealing the corresponding sampling hole in the target bag after the sampling mechanism obtains the sample; the problem that powder continuously leaks from the sampling hole can be solved, so that leakage and loss of the material in the subsequent hoisting, stacking and even static storage processes are avoided through instant and automatic hole sealing.

Description

TECHNICAL FIELD

[0001] The present application relates to ton bag carrying equipment technical field, especially point to a kind of ton bag carrying method and equipment. BACKGROUND

[0002] Ton bag, also known as flexible container bag, container bag, space bag, etc., is a kind of medium bulk container, is a kind of container unit appliance, with crane or forklift, can realize container unit transportation. It is convenient to load and unload bulk powder materials, with the characteristics of large volume, light weight, easy loading and unloading, etc., is one of common packaging materials. Its characteristics are simple structure, light weight, can be folded, the space occupied by emptying is small, and the price is low.

[0003] The traditional ton bag sampling is completed by steel needle or tubular sampler. After the steel needle or tubular sampler is pierced and pulled out, a physical hole is left on the ton bag flexible fabric. Since the hole itself does not have the ability to close, it becomes a permanent channel for continuous leakage of fine powder, ultrafine powder and other materials.

[0004] Because there is a time gap from sampling to repairing, and the subsequent manual patching has time lag, uncertain position and inconsistent quality, the repair reliability is low, which leads to leakage not only in the subsequent lifting and stacking process, but also in the static storage process. Under the action of gravity, the powder will slowly seep from the hole, causing static loss, which is difficult to detect but the total amount is considerable. SUMMARY

[0005] The present application provides a ton bag carrying method and equipment to eliminate the time gap between "sampling completion" and "manual discovery and repair" after traditional manual sampling, fundamentally solves the problem of continuous leakage of powder from the sampling hole, and avoids leakage and loss in the subsequent lifting, stacking and even static storage process through immediate and automatic hole sealing.

[0006] In order to solve the above technical problems, the present application adopts the following technical scheme: The present application provides a ton bag carrying method, which comprises a carrying mechanism, a sampling mechanism and a bag sealing assembly. The carrying mechanism is used to transfer the target bag between the sampling mechanism and the external transport vehicle. The sampling mechanism is used to pierce the target bag and obtain the sample in the target bag. The bag sealing assembly is used to close the corresponding sampling hole on the target bag after the sampling mechanism obtains the sample, comprising the following steps: S1, the carrying mechanism is used to grab the target bag from the external transport vehicle and transfer the target bag to the sampling station corresponding to the sampling mechanism; S2, the sampling mechanism is provided with a sampling needle, the sampling needle is used for pricking the target bag and synchronously obtaining the sample in the target bag, the sampling needle forms a sampling hole when pricking the target bag, and the sampling mechanism causes the sample to be gradually discharged from the sampling needle in the process of the sampling needle exiting the target bag; S3, after the sampling needle is separated from the target bag, a bag sealing assembly is used for sealing the corresponding sampling hole on the target bag; S4, a carrying mechanism is used for transferring the target bag which has been sealed to an external transport vehicle.

[0007] The carrying mechanism comprises a main frame, a first walking assembly which is slidably connected to the main frame in the conveying direction, a second walking assembly which is slidably connected to the first walking assembly in the conveying direction, and a clamping assembly which is connected to the second walking assembly, the stroke of the first walking assembly is located in the main frame, the second walking assembly slides between the inside and outside of the first walking assembly, the clamping assembly is used for picking and placing the target bag, a negative pressure cover is mounted on the outside of the clamping assembly, the negative pressure cover is used for generating negative pressure in the area where the lifting lug is located to make the lifting lug of the target bag stand upright upward, so as to facilitate the clamping assembly to accurately grasp the lifting lug, and in step S1, the following steps are further included: S11, the main frame is provided with a transport channel, and the transport channel is used for placing the external transport vehicle; S12, the external transport vehicle loaded with a plurality of target bags is moved to the transport channel, so that one of the target bags is butted against the stroke of the first walking assembly; S13, the first walking assembly and the second walking assembly are moved to the feeding station, the negative pressure cover makes the lifting lug on the target bag stand upright upward, and the clamping assembly grasps the target bag through the lifting lug; S14, the first walking assembly is moved to one end of the main frame close to the sampling mechanism, the second walking assembly is moved to the outside of the first walking assembly, so that the clamping assembly corresponds to the sampling station; S15, the clamping assembly releases the target bag, and the second walking assembly moves back to the inside of the main frame, so as to facilitate the sampling mechanism to sample the target bag.

[0008] The sampling mechanism comprises a sampling table, a wall plate provided on at least one side of the sampling table, at least one sampling rack which is slidably connected to the wall plate, a sampling assembly which is connected to the sampling rack, and a blocking member which is slidably connected to the sampling rack, the sampling needle is provided on the sampling assembly, and the wall plate is located on the side of the sampling station; The sampling assembly comprises a sampling cylinder which is mounted on the sampling rack and penetrates through both ends, a sampling needle which is slidably connected to the sampling cylinder, a sharp part which is provided at the front end of the sampling needle, a sampling port which is provided at the top end of the sharp part, a storage cavity which is provided in the sampling cylinder, a sample outlet which is provided at the bottom of the storage cavity, and a pushing block which is axially slidably connected to the sampling cylinder, part of the pushing block is located in the storage cavity, and the sampling port and the sample outlet are respectively communicated with the upper and lower ends of the storage cavity. When the target bag is placed in the sampling station, the sampling frame moves up and down to the desired position, the sampling needle moves towards the target bag, the pushing block extrudes the blocking member upwards to make the blocking member separate from the pushing block, then the pushing block moves synchronously with the sampling needle, the sharp part pierces the target bag to make the sample flow into the storage cavity along the sampling port, after sampling, the sampling needle moves away from the target bag, and the pushing block pushes the sample out along the sample outlet under the action of the blocking member; The sampling frame is provided with a collection frame below the sample outlet, and at least one tray is placed in the collection frame.

[0009] The sampling needle is provided with a push-pull groove and an annular guide groove, the storage cavity and the guide groove are in communication with the push-pull groove, a guide cylinder is slidably fitted in the guide groove, the pushing block is connected with the guide cylinder, and one end of the pushing block penetrates out of the push-pull groove and is located outside the sampling cylinder. The pushing block moves to drive the guide cylinder to slide synchronously in the guide groove; The guide cylinder continuously seals the connection between the push-pull groove and the storage cavity in the moving stroke of the pushing block; An extension pipe is installed in the storage cavity, the extension pipe is in communication with the sampling port, an expansion part is arranged on the side of the pushing block close to the extension pipe, and the expansion part and the extension pipe are staggered along the circumference of the sampling cylinder.

[0010] The blocking member is provided with a limiting surface and a blocking surface. When the sampling needle moves towards the target bag, one end of the pushing block extrudes the blocking surface and moves the blocking member upwards, so that the pushing block moves in the same direction as the sampling needle. When the sampling needle moves away from the target bag, the pushing block is blocked at the limiting surface, so that the pushing block moves in the opposite direction of the sampling needle. The blocking member is connected with a pulling part, one end of the pulling part extends out of the sampling frame, and a blocking spring is connected between the top end of the blocking member and the sampling frame.

[0011] The sampling frame is provided with a moving space, the pushing block moves in the moving space, the sampling cylinder is provided with a clearance groove, the pushing block is provided with a push-pull part, the push-pull part penetrates into the clearance groove, and a return spring is connected between the sampling needle and the push-pull part. After the pushing block extrudes the blocking member to separate it from the pushing block, the push-pull part has an active gap between the clearance groove and the push-pull groove at the two ends of the sampling cylinder in the axial direction, so as to facilitate the push-pull part to produce reciprocating pushing in the axial direction, thereby improving the moving speed of the sample to the sample outlet. The sampling cylinder is detachably connected with a stacking piece, the inner side of the stacking piece forms an inner side wall for supporting the sample, so as to store a certain amount of sample. An inclined discharge channel is formed between the outer side of the stacking member and the sample outlet, so as to facilitate the sample flow to the sample outlet. A blocking ring is circumferentially mounted at the front end of the sampling cylinder, and the opening end of the sampling port and the discharge end of the sample outlet are located at two opposite sides of the blocking ring.

[0012] The bag sealing assembly comprises a bag supporting disc mounted on the sampling frame, a placing groove arranged on the bag supporting disc and extending in the axial direction of the sampling cylinder, a plurality of patching members horizontally stacked in the placing groove, a clamping assembly for clamping the patching member close to one end of the target bag, and a bag driving module for driving the clamping assembly to move in the axial direction of the sampling cylinder. When the target bag is sampled, the sampling frame is moved upward to a desired position, so that the patching member is aligned with the sampling hole, the bag driving module drives the clamping assembly to move to a desired position, the clamping assembly clamps the patching member close to one end of the target bag, and the bag driving module drives the clamped patching member to move to the sampling hole, so that the sampling hole is closed by the patching member, and the target bag is sealed. The bag sealing assembly further comprises a translation assembly for pushing the horizontally stacked patching members as a whole to move towards the target bag, so that at least one patching member is located outside the placing groove and ensures a stable stacking state between the patching members.

[0013] The clamping assembly comprises a bidirectional air cylinder in driving connection with the bag driving module, a first clamping part and a second clamping part connected with two output ends of the bidirectional air cylinder respectively, and the outer end of the patching member is provided with a ring-shaped patching ring, and the inner side of the patching ring is fitted with the first clamping part and the second clamping part at the upper and lower ends respectively.

[0014] The translation assembly comprises a bracket mounted on the sampling frame, a sliding frame slidingly connected to the bracket in the axial direction of the sampling cylinder, and a reciprocating unit for driving the sliding frame to move in the axial direction of the sampling cylinder. The end of the sampling needle away from the sharp portion is provided with a plug-in interface, and the sliding frame is provided with a plug-in part. When the sampling cylinder is moved upward to a desired position, the plug-in interface is plugged with the plug-in part, and the reciprocating unit drives the sampling needle to approach or move away from the target bag. The side of the patching member close to the plug-in part is provided with an abutting part, and when the patching member is horizontally corresponding to the plug-in part, the reciprocating unit drives the plug-in part to move, so that the plug-in part pushes the patching member to move a specified distance towards the target bag.

[0015] The present application also provides a ton bag carrying equipment, which comprises a carrying mechanism, a sampling mechanism and a bag sealing assembly, the carrying mechanism is used for realizing the transfer of the target bag between the sampling mechanism and the external transport vehicle. The sampling mechanism is used to puncture the target bag and obtain a sample in the target bag; and the bag sealing assembly is used to close the corresponding sampling hole on the target bag after the sampling mechanism obtains the sample.

[0016] Advantages of the present application: By setting the continuous automatic process of "bag taking-positioning-sampling-hole sealing-bag returning", the sealing after sampling is smoothly connected after the sampling action and before the ton bag is removed, and at the same time that the leakage channel is constructed through the sampling hole, the repair of the channel is planned and executed, thereby eliminating the time gap between "sampling completion" and "manual discovery and repair" existing in the traditional manual sampling, fundamentally solving the problem of continuous leakage of powder from the sampling hole, thereby avoiding the leakage and loss of material during subsequent hoisting, stacking and even static storage through immediate and automatic hole sealing, and significantly improving the integrity and economy of the target bag during storage and transportation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the ton bag handling equipment when the target bag is located on the external transport vehicle.

[0018] Figure 2 It is a schematic view of the ton bag handling equipment when the target bag is located on the sampling station.

[0019] Figure 3 It is a structural schematic view of the handling mechanism.

[0020] Figure 4 It is a structural schematic view of the sampling mechanism before sampling the target bag.

[0021] Figure 5 It is a three-dimensional structural schematic view of the sampling mechanism.

[0022] Figure 6 It is a three-dimensional structural sectional view of the sampling mechanism.

[0023] Figure 7 It is a sectional view of the installation structure of the sampling assembly and the tray on the sampling rack.

[0024] Figure 8 It is a sectional view of the installation structure of the pushing block, the sampling cylinder and the sampling needle.

[0025] Figure 9 It is a three-dimensional structural schematic view of the sampling assembly, the tray and the clamping assembly.

[0026] Figure 10 It is a three-dimensional structural schematic view of the bag sealing drive module.

[0027] Figure 11 It is a sectional view of the structure of the clamping assembly when clamping the patching piece.

[0028] 01, target bag; 011, sampling hole; 02, external transport vehicle; 1, conveying mechanism; 11, main frame; 1101, transport channel; 12, first walking assembly; 13, second walking assembly; 14, clamping assembly; 1401, negative pressure cover; 2, sampling mechanism; 21, sampling table; 22, wallboard; 23, sampling frame; 24, sampling assembly; 241, sampling cylinder; 2411, guide cylinder; 2412, let go of the slot; 2413, blocking ring; 242, sampling needle; 24201, push-pull slot; 24202, guide slot; 2421, plug interface; 243, sharp part; 244, sampling port; 245, storage cavity; 246, sample outlet; 247, pushing block; 2471, push-pull part; 25, blocking member; 251, limiting surface; 252, blocking surface; 2501, pull part; 2502, blocking spring; 201, collection frame; 202, tray; 203, extension pipe; 204, expansion part; 205, reset spring; 3, bag sealing assembly; 31, bag sealing support disc; 32, placement slot; 33, darning part; 331, darning ring; 332, abutting part; 34, clamping assembly; 341, bidirectional air cylinder; 342, first clamping part; 343, second clamping part; 35, bag sealing drive module; 36, translation assembly; 361, bracket; 362, sliding frame; 3621, plug-in part; 363, reciprocating unit; 4, stacking part; 401, discharge channel. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of those skilled in the art, the present application will be further described below in conjunction with the embodiments and the accompanying drawings. The specific embodiments of the present application will be described below, and it should be noted that, in the specific description of these embodiments, the present specification cannot describe all the features of the actual embodiments in detail for the sake of brevity and conciseness.

[0030] REFERENCE Figures 1 to 11As shown, the present application provides a ton bag carrying method, which comprises a carrying mechanism 1, a sampling mechanism 2 and a bag sealing assembly 3, wherein the carrying mechanism 1 is used to realize the transfer of the target bag 01 between the sampling mechanism 2 and the external transport vehicle 02.

[0031] The sampling mechanism 2 is used to pierce the target bag 01 and obtain the sample in the target bag 01; and the bag sealing assembly 3 is used to close the corresponding sampling hole 011 on the target bag 01 after the sampling mechanism 2 obtains the sample, comprising the following steps: S1, the carrying mechanism 1 is used to grab the target bag 01 from the external transport vehicle 02 and transfer the target bag 01 to the sampling station corresponding to the sampling mechanism 2.

[0032] S2, the sampling mechanism 2 is provided with a sampling needle 242, which is used to pierce the target bag 01 and synchronously obtain the sample in the target bag 01, and the sampling needle 242 forms a sampling hole 011 when it pierces the target bag 01, and the sampling mechanism 2 makes the sampling needle 242 gradually discharge the sample out of the sampling needle 242 during the process of withdrawing from the target bag 01.

[0033] S3, after the sampling needle 242 is separated from the target bag 01, the bag sealing assembly 3 is used to close the corresponding sampling hole 011 on the target bag 01.

[0034] S4, the carrying mechanism 1 is used to transfer the target bag 01 that has been completely sealed to the external transport vehicle 02.

[0035] Reference Figures 1 to 3 As shown, in summary, in actual application, the target bag 01 is a ton bag, and the ton bag carrying method realizes the continuous and automatic process of "taking bag-positioning-sampling-sealing hole-returning bag", successfully connects the sealing after sampling to the action before the ton bag is removed, and at the same time of constructing the leakage channel through the sampling hole 011, plans and executes the repair of the channel, thereby eliminating the time gap between "sampling completion" and "manual discovery and repair" existing in the traditional manual sampling, fundamentally solving the problem of continuous leakage of powder from the sampling hole 011, avoiding the leakage and loss of materials in the subsequent hoisting, stacking and even static storage process through immediate and automatic sealing, and significantly improving the integrity and economy of the target bag 01 in storage and transportation.

[0036] Reference Figure 2 , 3As shown, in the embodiment, the conveying mechanism 1 comprises a main frame 11, a first walking assembly 12 slidingly connected to the main frame 11 in the conveying direction, a second walking assembly 13 slidingly connected to the first walking assembly 12 in the conveying direction, and a clamping assembly 14 connected to the second walking assembly 13, the stroke of the first walking assembly 12 is located in the main frame 11, the second walking assembly 13 slides between the inside and outside of the first walking assembly 12, the clamping assembly 14 is used to take and place the target bag 01, a negative pressure cover 1401 is installed on the outside of the clamping assembly 14, the negative pressure cover 1401 is used to generate negative pressure in the area where the lifting lug is located to make the lifting lug of the target bag 01 stand upright upward, so as to facilitate the clamping assembly 14 to accurately grab the lifting lug, and in step S1, further comprising: S11, the main frame 11 is provided with a transportation channel 1101, and the transportation channel 1101 is used to place the external transport vehicle 02.

[0037] S12, the external transport vehicle 02 loaded with a plurality of target bags 01 moves to the transportation channel 1101, so that one of the target bags 01 is butt jointed with the stroke of the first walking assembly 12.

[0038] S13, the first walking assembly 12 and the second walking assembly 13 are moved to the feeding station, the negative pressure cover 1401 makes the lifting lug on the target bag 01 stand upright upward, and the clamping assembly 14 grabs the target bag 01 through the lifting lug.

[0039] S14, the first walking assembly 12 is moved to one end of the main frame 11 close to the sampling mechanism 2, the second walking assembly 13 is moved to the outside of the first walking assembly 12, so that the clamping assembly 14 corresponds to the sampling station.

[0040] S15, the clamping assembly 14 releases the target bag 01, and the second walking assembly 13 moves back to the inside of the main frame 11, so as to facilitate the sampling mechanism 2 to sample the target bag 01.

[0041] Reference Figure 2 、 3As shown, in actual application, the negative pressure cover 1401 is connected with a negative pressure generator outside, so as to form negative pressure in the area where the lifting lug is located; the first walking assembly 12 is provided with a transverse assembly, which is drivingly connected with the second walking assembly 13, and the transverse assembly adopts a linear module, such as a screw motor module, an electric cylinder or an oil cylinder, to realize the transverse position adjustment of the second walking assembly 13, so as to fine-tune the transverse position of the clamping assembly 14 and the first walking assembly 12 on the external transport vehicle 02, facilitate accurate clamping of the target bag 01 at different transverse positions, and the top of the target bag 01 is provided with at least four lifting lugs, the hooks on the clamping assembly 14 correspond to the lifting lugs one by one, then the external negative pressure generator connected with the negative pressure cover 1401 is started, so that the hooks are located in the internal negative pressure cavity of the negative pressure cover 1401, and the negative pressure generated by the negative pressure cover 1401 makes the lifting lugs on the target bag 01 stand upright, so that the state of the lifting lugs is accurately determined inside the negative pressure cover 1401, facilitating the hooks to quickly and accurately grab the target bag 01, specifically, the hooks adopt automatic hooks, which automatically grab the lifting lugs after the lifting lugs are stood up by the negative pressure cover 1401, so as to realize automatic grabbing of the target bag 01; and the clamping assembly 14 is provided with a rotating shaft, the rotating shaft is connected with the hooks, and the rotating shaft can rotate horizontally, and the power unit driving the rotating shaft to rotate can be a rotary motor or a driving motor, so as to smoothly realize the rotation of the rotating shaft, thereby being suitable for grabbing the target bag 01 at different horizontal angles, and improving the grabbing efficiency of the target bag 01; and the first walking assembly 12 and the second walking assembly 13 both adopt movable carriages, so as to satisfy arbitrary adjustment of the position, through the two-stage telescopic structure of the first walking assembly 12 and the second walking assembly 13, the target bag at any position on the external transport vehicle 02 under the main frame 11 is grabbed, and is accurately transferred to the sampling station, the long-distance coarse positioning is realized through the first walking assembly 12, the short-distance fine positioning and progressive / recovery actions are realized through the second walking assembly 13, and the second assembly can be completely withdrawn into the first walking assembly 12 after grabbing the target bag 01, so as to avoid the safety hazards and space obstacles of the long-term extension of the second walking assembly 13.

[0042] Reference Figure 2 , 4 , 5, in the embodiment, the sampling mechanism 2 includes a sampling table 21, a wall plate 22 arranged on at least one side of the sampling table 21, at least one sampling rack 23 slidingly connected to the wall plate 22, a sampling assembly 24 connected to the sampling rack 23, and a blocking member 25 slidingly connected to the sampling rack 23, the sampling needle 242 is arranged on the sampling assembly 24, and the wall plate 22 is located on the side of the sampling station.

[0043] Reference Figure 6 , 7As shown, the sampling assembly 24 includes a sampling cylinder 241 mounted on the sampling frame 23 and penetrating through both ends, a sampling needle 242 slidingly connected to the sampling cylinder 241, a sharp part 243 provided at the front end of the sampling needle 242, a sampling port 244 provided at the top end of the sharp part 243, a storage cavity 245 provided inside the sampling cylinder 241, a sampling outlet 246 provided at the bottom of the storage cavity 245, and a pushing block 247 axially slidingly connected inside the sampling cylinder 241, part of the pushing block 247 being located inside the storage cavity 245, and the sampling port 244 and the sampling outlet 246 respectively communicating with the upper and lower ends of the storage cavity 245.

[0044] Referring to Figure 4 , 5 , as shown in FIG. 6, in actual application, the wall plate 22 provided on at least one side of the sampling table 21 meets the sampling needs of the target bag 01 in multiple directions, improving the universality of the sampling of the target bag 01; when the target bag 01 is placed on the sampling station, the sampling frame 23 moves up and down to the desired position, specifically, the lifting member for driving the sampling frame 23 to move up and down is installed on the wall plate 22, and the lifting member can be a lead screw motor module or an oil cylinder, so as to realize the up and down movement of the sampling frame 23; then the sampling needle 242 is driven to move towards the target bag 01 by external force, the pushing block 247 is extruded upwards to separate the blocking member 25 from the pushing block 247, then the pushing block 247 moves synchronously with the sampling needle 242, the sharp part 243 pierces the target bag 01 to make the sample flow into the storage cavity 245 along the sampling port 244, after sampling, the sampling needle 242 moves away from the target bag 01, and the pushing block 247 pushes the sample to be discharged along the sampling outlet 246 under the action of the blocking member 25, since the sampling frame 23 is provided with a collection frame 201 below the sampling outlet 246, at least one tray 202 is placed in the collection frame 201, one of the trays 202 is connected with the sampling outlet 246 in a plug-in manner, so that the sample falls into the tray 202 of the collection frame 201 below, and the tray 202 is connected with the mobile phone holder in a plug-in manner, facilitating quick removal of the tray 202 with the sample, and the collection frame 201 is used for receiving the sample, and the collection frame 201 can place multiple trays 202 for continuous sampling.

[0045] Referring to Figure 6 , 7As shown, and by using the mechanical blocking of the pushing block 247 by the blocking member 25 when the sampling needle 242 exits the target bag 01, the pushing block 247 is followed when the sampling needle 242 is inserted and is blocked when the sampling needle 242 is withdrawn, so that the natural linkage is achieved during the processes of "sampling needle 242 insertion into the target bag 01" and "sampling needle 242 withdrawal from the sampling", and the pushing-out action of the sample is automatically completed, without additional driving, to complete the automation of the sampling process and the cleanliness of the sample collection, the sampling action is coherent, the sample is automatically discharged when the needle is withdrawn, avoiding sample residue and cross contamination, and meanwhile, the sampling, temporary storage and discharge functions are integrated, the structure is ingenious and the reliability is high.

[0046] Referring to Figure 7 , 8 As shown, in the embodiment, the sampling needle 242 is provided with a push-pull groove 24201 and a ring-shaped guide groove 24202, the storage cavity 245 and the guide groove 24202 are both in communication with the push-pull groove 24201, a guide cylinder 2411 is slidingly fitted in the guide groove 24202, the pushing block 247 is connected with the guide cylinder 2411, one end of the pushing block 247 penetrates out of the push-pull groove 24201 and is located outside the sampling cylinder 241; the pushing block 247 drives the guide cylinder 2411 to slide synchronously in the guide groove 24202 when the pushing block 247 moves; the guide cylinder 2411 continuously seals the connection between the push-pull groove 24201 and the storage cavity 245 within the moving stroke of the pushing block 247; an extension pipe 203 is installed in the storage cavity 245, the extension pipe 203 is in communication with the sampling port 244, an expansion part 204 is arranged on the side of the pushing block 247 close to the extension pipe 203, and the expansion part 204 and the extension pipe 203 are staggered along the circumference of the sampling cylinder 241.

[0047] Referring to Figure 8 As shown, in actual application, the guide groove 24202 and the guide cylinder 2411 ensure the sealing property and functionality of the pushing block 247 in complex movement, no matter how the pushing block 247 moves, the guide cylinder 2411 always slides in the ring-shaped guide groove 24202 and seals the connection between the push-pull groove 24201 and the storage cavity 245, to prevent sample leakage from this place.

[0048] By staggering the expansion part 204 of the pushing block 247 and the fixed extension pipe 203 in the circumference, the pushing block 247 can pass by the extension pipe 203 smoothly and clean the materials around it, avoiding structure jamming, ensuring smooth pushing and effective cleaning of the storage cavity 245, so as to realize the pushing function while ensuring the sealing property of the inside of the sampling assembly 24, preventing powder leakage from polluting the mechanism or the environment, and improving the reliability and durability of operation through ingenious anti-interference design.

[0049] Referring to Figure 7 ,8 As shown, in particular, the sample flowing into the sampling port 244 is guided to flow through the extension pipe 203 and then to the pushing block 247, the distance between the sample and the pushing block 247 in the storage cavity 245 is shortened, and the sample is smoothly discharged to the sample outlet 246 through the expansion part 204, thereby improving the discharge efficiency of the sample.

[0050] Reference Figure 7 , 8 As shown, in the embodiment, the blocking member 25 is provided with a limiting surface 251 and a blocking surface 252, a lifting part 2501 is connected to the blocking member 25, one end of the lifting part 2501 extends out of the sampling rack 23, and a blocking spring 2502 is connected between the top end of the blocking member 25 and the sampling rack 23.

[0051] In actual application, when the sampling needle 242 moves towards the target bag 01, one end of the pushing block 247 presses the blocking surface 252 and moves the blocking member 25 upward, the blocking spring 2502 is compressed, the pushing block 247 separates from the blocking member 25 and then smoothly passes through the blocking member 25, so that the pushing block 247 moves in the same direction as the sampling needle 242; when the sampling needle 242 moves away from the target bag 01, the pushing block 247 is blocked at the limiting surface 251, so that the pushing block 247 moves in the opposite direction of the sampling needle 242, and the pushing block 247 exits the sample in the storage cavity 245, thereby achieving automatic discharge of the sample. The movement of the pushing block 247 realizes the control logic of “allowing one-way passage and preventing reverse movement”, relies on pure mechanical triggering, does not need sensors or electrical control, responds quickly, has low failure rate, and is convenient for stable realization of automatic linkage of sampling and discharging; when it is necessary to take out the sampling needle 242, the lifting part 2501 is driven to move upward by force, the blocking member 25 compresses the blocking spring 2502 to provide a moving space for the pushing block 247, and then the sampling needle 242 is smoothly taken out along the sampling cylinder 241, which is convenient for replacement and cleaning of the sampling needle 242.

[0052] Reference Figure 7 , 8 As shown, in the embodiment, the sampling rack 23 is provided with a moving space, the pushing block 247 moves in the moving space, the sampling cylinder 241 is provided with a gap slot 2412, the pushing block 247 is provided with a push-pull part 2471, the push-pull part 2471 is arranged in the gap slot 2412, and the sampling needle 242 and the push-pull part 2471 are connected with a return spring 205.

[0053] In actual application, the pushing block 247 is connected with the sampling needle 242 through the reset spring 205, and the pushing and pulling part 2471 has an active gap between the let-in slot 2412 and the pushing and pulling slot 24201 at the two ends of the sampling cylinder 241 in the axial direction. When the pushing block 247 is blocked, the active gap provides a moving gap for the pushing block 247. Once the sampling needle 242 retreats again, it will cause the sampling needle 242 to stretch the reset spring 205. The rebound of the reset spring 205 drives the pushing and pulling part 2471 to reciprocally push in the axial direction, so that the pushing block 247 reciprocally vibrates slightly, thereby improving the speed of the sample moving to the sample outlet 246 and accelerating the sample discharge.

[0054] Referring to Figure 6 , Referring to 7 , 8, the sampling cylinder 241 is detachably connected with the material stacking piece 4. The inner side of the material stacking piece 4 constitutes an inner side wall for supporting the sample, so as to store a certain amount of sample. The outer side of the material stacking piece 4 and the sample outlet 246 form an inclined discharge channel 401, so as to facilitate the sample to flow to the sample outlet 246 and ensure smooth discharge of the sample. Since the material stacking piece 4 is detachably connected, the sample conveying space at the corresponding position can be cleaned by detaching the material stacking piece 4, which is beneficial to ensure that the sample conveying environment is clean and tidy. Since the front end of the sampling cylinder 241 is peripherally mounted with the blocking ring 2413, the opening end of the sampling port 244 and the discharge end of the sample outlet 246 are located at two opposite sides of the blocking ring 2413, so as to separate the sampling port 244 and the sample outlet 246 on two sides, prevent the discharge port from being contaminated during feeding, realize rapid flow of the sample and no cross contamination. Therefore, when the sample is a powder material with poor flowability and easy adhesion, the sufficiency and cleanliness of sampling and sample discharge can also be ensured. In addition, the detachable connection mode is adopted between the blocking ring 2413 and the sampling cylinder 241, which facilitates replacement and disassembly of the blocking ring 2413 and ensures the cleanliness of the blocking ring 2413 and the sampling needle 242. When the blocking ring 2413 is removed, the sampling needle 242 can be directly axially slid out of the sampling cylinder 241, and then the sampling needle 242 can be reassembled into the sampling cylinder 241, and then the blocking ring 2413 can be assembled, so as to meet the normal use requirements of the sampling needle 242 and improve the disassembly efficiency of the sampling needle 242.

[0055] Referring to Figure 9 , Referring to 10 , in the embodiment, the bag sealing assembly 3 includes a bag sealing support disc 31 mounted on the sampling frame 23, a placement groove 32 arranged on the bag sealing support disc 31 and extending in the axial direction of the sampling cylinder 241, a plurality of patching pieces 33 horizontally stacked in the placement groove 32, a clamping assembly 34 for clamping the patching piece 33 close to one end of the target bag 01, and a bag sealing driving module 35 for driving the clamping assembly 34 to move in the axial direction of the sampling cylinder 241.

[0056] In actual application, when the target bag 01 is sampled, the sampling frame 23 is moved upward to a required position, so that the patching pieces 33 are aligned with the sampling hole 011, the bag sealing driving module 35 drives the clamping assembly 34 to move to a required position, the clamping assembly 34 clamps the patching piece 33 close to one end of the target bag 01, so that the outermost patching piece 33 can accurately correspond to the clamping position of the clamping assembly 34, and then the bag sealing driving module 35 drives the clamped patching piece 33 to move to the sampling hole 011, so that the sampling hole 011 is closed by the patching piece 33, and the bag sealing of the target bag 01 is realized.

[0057] Reference Figure 9 、 11 As shown in FIG. 8, and since the bag sealing assembly 3 further comprises a translation assembly 36 for pushing the whole horizontally stacked patching pieces 33 to move towards the target bag 01, so that at least one patching piece 33 is located outside the placing groove 32 and the stable stacking state between the patching pieces 33 is ensured, and by continuously pushing the whole stack of patching pieces 33 towards the target bag 01 by the translation assembly 36, the outermost patching piece 33 is ensured to be in the clamped position, therefore, by setting the translation assembly 36, the compact structure and reliable feeding usage requirements are met, and the translation assembly 36 is integrally arranged on the sampling frame 23 together with the sampling mechanism 2, and is drivingly connected with the sampling frame 23 by an external lifting mechanism, which can be a lead screw motor module or an electric cylinder, so as to smoothly drive the sampling frame 23 to move to a required position, meet the height control of the translation assembly 36 and the sampling mechanism 2, improve the coordination between the lifting mechanisms, and improve the space utilization; the bag sealing driving module 35 adopts a lead screw motor module or an electric cylinder to drive the clamping assembly 34 to move to a required position along the axial direction of the sampling cylinder 241, so as to accurately control the moving position of the clamping assembly 34.

[0058] Reference Figure 9 、 11 As shown in FIG. 8, and since the bag sealing assembly 3 further comprises a translation assembly 36 for pushing the whole horizontally stacked patching pieces 33 to move towards the target bag 01, so that at least one patching piece 33 is located outside the placing groove 32 and the stable stacking state between the patching pieces 33 is ensured, and by continuously pushing the whole stack of patching pieces 33 towards the target bag 01 by the translation assembly 36, the outermost patching piece 33 is ensured to be in the clamped position, therefore, by setting the translation assembly 36, the compact structure and reliable feeding usage requirements are met, and the translation assembly 36 is integrally arranged on the sampling frame 23 together with the sampling mechanism 2, and is drivingly connected with the sampling frame 23 by an external lifting mechanism, which can be a lead screw motor module or an electric cylinder, so as to smoothly drive the sampling frame 23 to move to a required position, meet the height control of the translation assembly 36 and the sampling mechanism 2, improve the coordination between the lifting mechanisms, and improve the space utilization; the bag sealing driving module 35 adopts a lead screw motor module or an electric cylinder to drive the clamping assembly 34 to move to a required position along the axial direction of the sampling cylinder 241, so as to accurately control the moving position of the clamping assembly 34.

[0059] In practical applications, the two clamping parts are driven to move synchronously towards or away from each other by the bidirectional cylinder 341, so as to reliably clamp and release the mending ring 331. Specifically, the annular mending ring 331 increases the contact area and structural strength with the first clamping part 342 and the second clamping part 343, which facilitates stable clamping. The structure of the mending part 33 is triangular pyramidal, and the interior of the triangular pyramid has a positioning recess for accommodating and positioning adjacent mending parts 33, thereby meeting the lateral stacking requirements between adjacent mending parts 33. Thus, the action of the bidirectional cylinder 341 effectively grasps and maintains the posture of the mending part 33, ensuring that the mending part 33 will not fall or deflect during the process of pushing it to the sampling hole 011 on the target bag 01, thus ensuring the success rate of the sealing operation.

[0060] refer to Figure 9 , 10 As shown, in this embodiment, the translation component 36 includes a bracket 361 mounted on the sampling frame 23, a sliding frame 362 slidably connected to the bracket 361 along the axial direction of the sampling cylinder 241, and a reciprocating unit 363 for driving the sliding frame 362 to move along the axial direction of the sampling cylinder 241; the top of the end of the sampling needle 242 away from the spike portion 243 is provided with an insertion interface 2421, and the sliding frame 362 is provided with an insertion portion 3621.

[0061] In practical applications, the reciprocating unit 363 uses a screw motor module or an electric cylinder module to facilitate precise control of the movement of the sliding frame 362, thereby moving the insertion part 3621 to the required position. When the sampling cylinder 241 moves upward to the required position, the sampling frame 23 moves synchronously to align the insertion interface 2421 at the top of the sampling needle 242 with the insertion part 3621 of the sliding frame 362, so that the insertion interface 2421 and the insertion part 3521 are accurately inserted. Then, the reciprocating unit 363 drives the sampling needle 242 to move closer to or away from the target bag 01. When it is necessary to close the sampling hole 011 on the target bag 01, since the sewing piece 33 has an abutment part 332 on the side near the insertion part 3521, when the... When the patch 33 and the insertion part 3521 are horizontally aligned, the reciprocating unit 363 drives the insertion part 3621 forward, so that the insertion part 3621 pushes the patch 33 to move a specified distance toward the target bag 01, thereby directly pushing the entire stack of patch 33 to move a small distance toward the target bag 01, assisting in the delivery of the patch 33; thus, through the same drive unit, at different lifting positions of the sampling frame 23, the sampling pushing action and the bag sealing auxiliary feeding process are realized respectively, simplifying the equipment structure, reducing costs, eliminating a separate power system for driving the bag sealing assembly 3, and ensuring that both actions are driven by the same high-precision module, with unified motion control, accurate positioning, and improved system coordination.

[0062] refer to Figures 1 to 11As shown, the application also provides a ton bag carrying device, which comprises a carrying mechanism 1, a sampling mechanism 2 and a bag sealing assembly 3, the carrying mechanism 1 is used to realize the transfer of the target bag 01 between the sampling mechanism 2 and the external transport vehicle 02; the sampling mechanism 2 is used to pierce the target bag 01 and obtain the sample in the target bag 01; the bag sealing assembly 3 is used to close the corresponding sampling hole 011 on the target bag 01 after the sampling mechanism 2 obtains the sample.

[0063] In actual application, the target bag 01 is a ton bag, and the ton bag carrying method realizes the continuous and automatic process of "taking bag-positioning-sampling-sealing hole-returning bag", so that the sealing after sampling is smoothly connected after the sampling action and before the ton bag is removed, and at the same time of constructing the leakage channel through the sampling hole 011, the repair of the channel is planned and executed, thereby eliminating the time gap between "sampling completion" and "manual discovery and repair" existing in the traditional manual sampling, fundamentally solving the problem of continuous leakage of powder from the sampling hole 011, and avoiding the leakage and loss of materials in the subsequent hoisting, stacking and even static storage process through immediate and automatic sealing, thereby significantly improving the integrity and economy of the target bag 01 in storage and transportation.

[0064] The above is only the preferred embodiment of the application, not any form of limitation on the application, although the application is disclosed as above with the preferred embodiment, however, it is not intended to limit the application, any person skilled in the art, without departing from the technical solution of the application, can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as it does not deviate from the technical solution of the application, any simple modification, equivalent change and modification made to the above embodiments according to the application technology are within the scope of the technical solution of the application.

Claims

1. A ton bag handling method characterized by, It comprises a carrying mechanism (1), a sampling mechanism (2) and a bag sealing assembly (3), the carrying mechanism (1) is used for realizing the transfer of the target bag (01) between the sampling mechanism (2) and the external transport vehicle (02); The sampling mechanism (2) is used for piercing the target bag (01) and obtaining the sample in the target bag (01); the bag sealing assembly (3) is used for closing the corresponding sampling hole (011) on the target bag (01) after the sampling mechanism (2) obtains the sample, comprising the following steps: S1, the carrying mechanism (1) is used to grab the target bag (01) from the external transport vehicle (02) and transfer the target bag (01) to the sampling station corresponding to the sampling mechanism (2); S2, the sampling mechanism (2) is provided with a sampling needle (242), the sampling needle (242) is used to pierce the target bag (01) and synchronously obtain the sample in the target bag (01), the sampling needle (242) forms a sampling hole (011) when it pierces the target bag (01), and the sampling mechanism (2) makes the sampling needle (242) gradually discharge the sample out of the sampling needle (242) during the process of withdrawing from the target bag (01); S3, after the sampling needle (242) is separated from the target bag (01), the bag sealing assembly (3) is used to close the corresponding sampling hole (011) on the target bag (01); S4, the carrying mechanism (1) is used to transfer the target bag (01) that has been sealed to the external transport vehicle (02).

2. The ton bag handling method according to claim 1, characterized in that, The carrying mechanism (1) comprises a main frame (11), a first walking assembly (12) slidably connected to the main frame (11) in the conveying direction, a second walking assembly (13) slidably connected to the first walking assembly (12) in the conveying direction, and a clamping assembly (14) connected to the second walking assembly (13), the stroke of the first walking assembly (12) is located in the main frame (11), the second walking assembly (13) slides between the inside and outside of the first walking assembly (12), the clamping assembly (14) is used for taking and placing the target bag (01), a negative pressure cover (1401) is installed on the outer side of the clamping assembly (14), the negative pressure cover (1401) is used to generate negative pressure in the area where the lifting lug is located to make the lifting lug of the target bag (01) stand upright upward, so as to facilitate the clamping assembly (14) to accurately grab the lifting lug, in step S1, further comprising: S11, the main frame (11) is provided with a transport channel (1101), the transport channel (1101) is used for placing the external transport vehicle (02); S12, the external transport vehicle (02) loaded with a plurality of target bags (01) moves to the transport channel (1101), so that one of the target bags (01) is butt jointed with the stroke of the first walking assembly (12); S13, the first walking assembly (12) and the second walking assembly (13) are moved to the feeding station, the negative pressure cover (1401) makes the lifting lug on the target bag (01) assume an upright posture upward, and the clamping assembly (14) grabs the target bag (01) through the lifting lug; S14, move the first walking assembly (12) to the end of the main frame (11) close to the sampling mechanism (2), and move the second walking assembly (13) to the outside of the first walking assembly (12) so that the clamping assembly (14) corresponds to the sampling station; S15, the clamping assembly (14) releases the target bag (01), and the second walking assembly (13) moves back to the inside of the main frame (11) so as to facilitate the sampling mechanism (2) to sample the target bag (01).

3. The ton bag handling method of claim 1, wherein, The sampling mechanism (2) comprises a sampling table (21), a wall plate (22) arranged on at least one side of the sampling table (21), at least one sampling rack (23) slidingly connected to the wall plate (22), a sampling assembly (24) connected to the sampling rack (23), and a blocking member (25) slidingly connected to the sampling rack (23), wherein the sampling needle (242) is arranged on the sampling assembly (24), and the wall plate (22) is located on the side of the sampling station; The sampling assembly (24) comprises a sampling cylinder (241) installed on the sampling rack (23) and penetrating through both ends, a sampling needle (242) slidingly connected to the sampling cylinder (241), a sharp part (243) arranged at the front end of the sampling needle (242), a sampling port (244) arranged at the top end of the sharp part (243), a storage cavity (245) arranged in the sampling cylinder (241), a sample outlet (246) arranged at the bottom of the storage cavity (245), and a pushing block (247) axially slidingly connected in the sampling cylinder (241), wherein part of the pushing block (247) is located in the storage cavity (245), and the sampling port (244) and the sample outlet (246) are respectively communicated with the upper and lower ends of the storage cavity (245); When the target bag (01) is placed in the sampling station, the sampling rack (23) moves up and down to the desired position, the sampling needle (242) moves towards the target bag (01), the pushing block (247) pushes the blocking member (25) upwards to make the blocking member (25) separate from the pushing block (247), then the pushing block (247) moves synchronously with the sampling needle (242), the sharp part (243) pierces the target bag (01) to make the sample flow into the storage cavity (245) along the sampling port (244), and after sampling is completed, the sampling needle (242) moves away from the target bag (01), and the pushing block (247) pushes the sample out along the sample outlet (246) under the action of the blocking member (25); The sampling rack (23) is provided with a collection rack (201) located below the sample outlet (246), and at least one tray (202) is placed in the collection rack (201), wherein one of the trays (202) is in butt joint with the sample outlet (246).

4. The method of pallet handling according to claim 3, wherein, The sampling needle (242) is provided with a push-pull groove (24201) and a ring-shaped guide groove (24202), the storage cavity (245) and the guide groove (24202) are both communicated with the push-pull groove (24201), a guide cylinder (2411) is slidingly fitted in the guide groove (24202), the push block (247) is connected with the guide cylinder (2411), and one end of the push block (247) penetrates through the push-pull groove (24201) and is located outside the sampling cylinder (241); The push block (247) drives the guide cylinder (2411) to synchronously slide in the guide groove (24202) when the push block (247) moves; In the moving stroke of the push block (247), the guide cylinder (2411) continuously seals the connection part of the push-pull groove (24201) and the storage cavity (245); An extension pipe (203) is installed in the storage cavity (245), the extension pipe (203) is communicated with the sampling port (244), and the side, close to the extension pipe (203), of the push block (247) is provided with an expansion part (204), and the expansion part (204) and the extension pipe (203) are staggered along the circumference of the sampling cylinder (241).

5. The method of pallet handling according to claim 3, wherein, The blocking member (25) is provided with a limiting surface (251) and a blocking surface (252); When the sampling needle (242) moves towards the target bag (01), one end of the push block (247) presses the blocking surface (252) and makes the blocking member (25) move upwards, so that the push block (247) moves in the same direction with the sampling needle (242); When the sampling needle (242) moves away from the target bag (01), the push block (247) is blocked at the limiting surface (251), so that the push block (247) moves in the opposite direction with the sampling needle (242); The blocking member (25) is connected with a pulling part (2501), one end of the pulling part (2501) extends out of the sampling rack (23), and a blocking spring (2502) is connected between the top end of the blocking member (25) and the sampling rack (23).

6. The ton bag handling method according to claim 4, wherein The sampling rack (23) is provided with a moving space, the push block (247) moves in the moving space, the sampling cylinder (241) is provided with a let-in groove (2412), the push block (247) is provided with a push-pull part (2471), the push-pull part (2471) penetrates through the let-in groove (2412), and a return spring (205) is connected between the sampling needle (242) and the push-pull part (2471); After the push block (247) presses the blocking member (25) to separate the push block (247) from the blocking member (25), the push-pull part (2471) has a moving gap between the let-in groove (2412) and the push-pull groove (24201) at the two ends of the sampling cylinder (241) in the axial direction, so that the push-pull part (2471) can reciprocally push in the axial direction, and the speed of the sample moving to the sample outlet (246) is improved; The sampling cylinder (241) is detachably connected with a stacking piece (4), the inner side of the stacking piece (4) forms an inner side wall for supporting the sample, so as to store a certain amount of sample. An inclined discharge channel (401) is formed between the outer side of the stacking piece (4) and the sample outlet (246) to facilitate the sample flow to the sample outlet (246); The front end of the sampling cylinder (241) is circumferentially mounted with a blocking ring (2413), and the opening end of the sampling port (244) and the discharge end of the sample outlet (246) are located on two opposite sides of the blocking ring (2413).

7. The method of palletizing according to claim 3, wherein, The bag sealing assembly (3) comprises a bag supporting disc (31) mounted on the sampling frame (23), a placing groove (32) arranged on the bag supporting disc (31) and extending axially along the sampling cylinder (241), a plurality of patching pieces (33) horizontally stacked in the placing groove (32), a clamping assembly (34) for clamping the patching piece (33) close to one end of the target bag (01), and a bag driving module (35) for driving the clamping assembly (34) to move axially along the sampling cylinder (241); When the sampling of the target bag (01) is completed, the sampling frame (23) is moved upward to a desired position so that the patching piece (33) is aligned with the sampling hole (011), the bag driving module (35) drives the clamping assembly (34) to move to a desired position, the clamping assembly (34) clamps the patching piece (33) close to one end of the target bag (01), and the bag driving module (35) drives the clamped patching piece (33) to move to the sampling hole (011) to close the sampling hole (011) with the patching piece (33), thereby sealing the target bag (01); The bag sealing assembly (3) further comprises a translation assembly (36) for pushing the horizontally stacked patching pieces (33) to move as a whole towards the target bag (01) so that at least one patching piece (33) is located outside the placing groove (32) and ensures a stable stacking state between the patching pieces (33).

8. The method of pallet handling according to claim 7, wherein, The clamping assembly (34) comprises a bidirectional air cylinder (341) in driving connection with the bag driving module (35), a first clamping part (342) and a second clamping part (343) connected with two output ends of the bidirectional air cylinder (341) respectively, and the outer end of the patching piece (33) is provided with a ring-shaped patching ring (331), and the inner side of the patching ring (331) is fitted with the first clamping part (342) and the second clamping part (343) at the upper and lower ends respectively.

9. The method of palletizing according to claim 7, wherein, The translation assembly (36) comprises a bracket (361) mounted on the sampling frame (23), a sliding bracket (362) slidingly connected to the bracket (361) along the axial direction of the sampling cylinder (241), and a reciprocating unit (363) for driving the sliding bracket (362) to move axially along the sampling cylinder (241); The end of the sampling needle (242) away from the sharp part (243) is provided with a plug-in interface (2421), and the sliding bracket (362) is provided with a plug-in part (3621); When the sampling cylinder (241) is moved upward to a desired position, the plug-in interface (2421) is plugged with the plug-in part (3621), and the reciprocating unit (363) drives the sampling needle (242) to approach or move away from the target bag (01). The mending piece (33) is provided with an abutting portion (332) on one side close to the insertion portion (3621), when the mending piece (33) horizontally corresponds with the insertion portion (3621), the reciprocating unit (363) drives the insertion portion (3621) to move, so that the insertion portion (3621) pushes the mending piece (33) to move a specified distance to the target bag (01).

10. A ton bag handling apparatus for use in the ton bag handling method according to any one of claims 1 to 9, characterized by The bag sampling device comprises a carrying mechanism (1), a sampling mechanism (2) and a bag sealing assembly (3), the carrying mechanism (1) is used for realizing the transfer of the target bag (01) between the sampling mechanism (2) and an external transport vehicle (02); The sampling mechanism (2) is used for puncturing the target bag (01) and obtaining a sample in the target bag (01); and the bag sealing assembly (3) is used for closing a corresponding sampling hole (011) on the target bag (01) after the sampling mechanism (2) obtains the sample.

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