Packaging apparatus

Abstract

The present application relates to the technical field of product packaging, and in particular to a packaging device. The packaging device comprises a cotton storage mechanism having a stacking gap for stacking sheet materials, at least two sides of the stacking gap are respectively provided with a material taking port; a bag opening mechanism is arranged on one side of the cotton storage mechanism and is used for opening a bag opening of a packaging bag; a material taking and transferring mechanism is used for transferring the stacked sheet materials from the cotton storage mechanism to the packaging bag, the material taking and transferring mechanism comprises at least two material taking ends, and the at least two material taking ends correspond to at least two material taking ports respectively; a bag sealing mechanism is used for sealing the packaging bag after the stacked sheet materials are loaded into the packaging bag; and a folding mechanism is used for folding materials. The present application can take out and transfer a plurality of flexible sheet materials in a stacked state to a packaging bag as a whole.

Description

Technical Field

[0001] This invention relates to the field of product packaging technology, and more particularly to a packaging device. Background Technology

[0002] In the prior art, mask folding and packaging equipment is quite common. For example, CN213921805U discloses a folding packaging machine, which includes a conveying mechanism, a folding mechanism, a film storage bin, and a film removal mechanism, capable of folding the mask sheet and arranging it neatly in the film storage bin. However, this type of equipment can only fold and collect single masks, and cannot remove multiple folded mask sheets from their stacked state as a whole and pack them into the same packaging bag.

[0003] In the field of facial mask packaging, some equipment already exists that handles multiple facial masks. For example, CN224428183U discloses a facial mask folding packaging machine, which sets up a waiting area and a folding area on the worktable, and opens multiple folding seams on the slide. This allows the slide to continuously feed multiple facial masks via a first conveyor belt when it is in the waiting area, and to simultaneously fold and unload multiple facial masks after the slide moves to the folding area. CN216468847U discloses a fully automatic eight-piece facial mask injection packaging equipment, which can process multiple facial mask packaging bags through an injection device, an adsorption unfolding device, and a sliding pressing device. However, the above-mentioned equipment packs the folded single facial masks into their respective packaging bags, failing to transfer multiple folded facial mask sheets as a whole from a stacked state to the same packaging bag.

[0004] Furthermore, existing packaging equipment already includes various bag-picking and opening mechanisms. For example, bag-picking and opening devices use bag-pushing mechanisms, suction cup bag-picking mechanisms, and bag-pulling clamps to remove and open bags. Automatic bagging machines include material-pushing mechanisms, bag-transferring mechanisms, bag-opening mechanisms, and bag-supporting mechanisms. However, the above-mentioned bag-opening mechanisms can only achieve simple opening of the bag opening and cannot open the bag opening into an opening shape that allows stacked sheet-like materials to pass through as a whole, making it difficult to meet the need to pack stacked flexible materials into bags as a whole.

[0005] Therefore, it is evident that the existing technology lacks a device that can fold and stack multiple flexible sheet materials, and then remove the stacked flexible sheet materials (such as facial mask fabric) as a whole and transfer them into the same packaging bag. Summary of the Invention

[0006] In view of this, embodiments of the present invention provide a packaging device to solve the technical problem that existing packaging machines cannot fold and stack multiple flexible sheet materials, and then remove the stacked multiple flexible sheet materials as a whole and transfer them into the same packaging bag.

[0007] This invention provides a packaging device, comprising: The cotton storage mechanism has a stacking gap for stacking the sheet material, and at least two sides of the stacking gap are respectively provided with material inlets; A bag opening mechanism is located on one side of the cotton storage mechanism and is used to open the bag opening of the packaging bag; A material handling and transfer mechanism is used to transfer the stacked sheet material from the cotton storage mechanism to the packaging bag. The material handling and transfer mechanism includes at least two material handling ends, and the at least two material handling ends are respectively corresponding to at least two material handling ports. A sealing mechanism is used to seal the packaging bag after the stacked sheet material has been filled into it; A feeding assembly is located upstream of the cotton storage mechanism. The feeding assembly includes a folding mechanism, which is used to fold a single sheet of the sheet material and feed it into the stacking gap. The at least two material-taking ends are configured to be able to pass through the corresponding material-taking ports to clamp the stacked sheet material located in the stacking gap and transfer the stacked sheet material into the packaging bag whose opening is opened by the bag-opening mechanism.

[0008] In summary, the beneficial effects of the present invention are as follows: The packaging equipment of the present invention utilizes a folding mechanism to automatically fold materials into individually flexible sheets of suitable size. By setting a cotton storage mechanism with stacking gaps, multiple flexible sheets of material can be stacked sequentially within the stacking gaps. By setting material picking ports on at least two sides of the stacking gaps, at least two picking ends of the material picking and transfer mechanism pass through the corresponding picking ports and clamp the stacked sheets of material from opposite sides. This allows multiple flexible sheets of material in a stacked state to be taken out as a whole from the cotton storage mechanism and transferred to the same packaging bag, reducing the repetitive actions required for picking and bagging each sheet individually, improving packaging efficiency, reducing the number of packaging bags used, and lowering packaging material costs.

[0009] The number of picking ends can be set to two or more, depending on the width, thickness, and softness of the stacked sheet material. The number and position of the picking ports correspond to the picking ends, allowing the clamping force to be distributed along the width direction of the stacked sheet material, improving the stability of thicker stacked sheet materials during lifting and translation. After passing through the corresponding picking port, the picking end extends into and clamps the stacked sheet material from the side, reducing direct contact between the picking end and the effective surface area of ​​the sheet material, and lowering the possibility of indentation, curling, misalignment, or local deformation caused by pinching from the outer surface of the material. At the same time, the corresponding insertion and connection between the picking end and the picking port can limit the picking position of the picking end, ensuring that the clamping position is relatively consistent during each picking, making it suitable for the batch transfer of soft and easily deformable sheet materials such as non-woven fabrics, mask fabrics, and cotton fabrics.

[0010] This invention also utilizes an opening mechanism to open and expand the bag opening, creating an opening for stacked sheet materials to pass through. A material transfer mechanism then transfers the stacked sheet materials into the opened bag, and a sealing mechanism seals the bag after it has been filled with the stacked sheet materials. This achieves continuous operation of stacking sheet materials, picking up the stacked materials, opening the bag, filling the bag, and sealing the bag. The various mechanisms are connected according to a predetermined process, reducing manual material handling, sorting, and bagging operations, and improving the automation level, production efficiency, and consistency between different packaged products. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of the present invention.

[0012] Figure 1 This is a schematic diagram of the packaging equipment in this invention.

[0013] Figure 2 This is a schematic diagram showing the alternating operation of the two sets of cotton storage mechanisms and the two sets of material handling and transfer mechanisms in this invention.

[0014] Figure 3 This is a schematic diagram of the storage bag mechanism and the first bag-retrieving mechanism in this invention.

[0015] Figure 4 This is a schematic diagram of the suction-opening component in this invention.

[0016] Figure 5 This is a schematic diagram of the structure of the bag support assembly in this invention.

[0017] Figure 6 This is a structural schematic diagram of the bag support assembly from another perspective in this invention.

[0018] Figure 7 This is a schematic diagram showing the state in which the bag-supporting component of the present invention opens the opening of the packaging bag.

[0019] Figure 8 This is a schematic diagram of the material handling and transfer mechanism in this invention.

[0020] Figure 9 This is a schematic diagram of the filling mechanism in this invention.

[0021] Figure 10 This is a schematic diagram of the folding mechanism in this invention.

[0022] Figure 11This is a schematic diagram of the cotton storage mechanism and its switching structure in this invention.

[0023] Figure 12 This is a schematic diagram showing the state in which the folding blade feeds the folded sheet material into the stacking gap in this invention.

[0024] Figure 13 This is a schematic diagram showing the state in which the pusher pushes the sheet-like material in the stacking gap to the corresponding position of the feeding port in this invention.

[0025] Figure 14 This is a schematic diagram of the accordion bag structure in this invention.

[0026] Figure 15 This is a schematic diagram of the packaging bag in the present invention, showing the bag opening narrowing and waiting to be clamped by the bag clamping component.

[0027] Figure 16 This is a schematic diagram showing the state in which the bag clamping component holds the packaging bag and releases the support from the bottom of the packaging bag in this invention.

[0028] Figure 17 This is a schematic diagram of the sealing mechanism in this invention.

[0029] The components and their numbers shown in the picture: Frame 100, mounting plate 110, mounting plate front and rear adjustment component 111; Folding mechanism 200, feeding belt 210, pressure roller 211, first folding plate 212, first pressure plate 213, second folding plate 214, second pressure plate 215, sensor 216, folding knife 217; The components include: cotton storage mechanism 300, first cotton storage trough 301, second cotton storage trough 302, movable seat 310, movable guide rail 311, switching drive component 312, stacking gap 320, pushing drive component 321, pushing component 322, mating groove 323, first material receiving port 324, limiting component 325, limiting component drive cylinder 326, cotton trough guard plate 327, material blocking component 328, second material receiving port 329, abutment component 330, and cotton trough width adjustment handwheel 331. Material handling and transfer mechanism 400, first material handling and transfer mechanism 401, second material handling and transfer mechanism 402, translation guide rail 410, lifting guide rail 411, clamping drive component 412, clamping component 413, material handling end 414; The bag storage mechanism 500, the first guard plate 501, the second guard plate 502, the width adjustment component 503, the first limiting component 504, the second limiting component 505, the first bag taking mechanism 506, the positioning component 507, the length adjustment component 508, and the bag taking translation mechanism 510. Bag opening mechanism 600, suction opening component 610, first drive motor 611, first synchronous belt 612, first slider 613, second slider 614, first suction arm 615, second suction arm 616, first suction cup 617, second suction cup 618; Bag support assembly 620, second drive motor 621, second synchronous belt 622, second guide rail 623, third slider 624, fourth slider 625, first intermediate component 626, second intermediate component 627, first guide rod 628, second guide rod 629, third guide rod 630, fourth guide rod 631, first slide block 632, second slide block 633, third slide block 634, fourth slide block 635, first opening component 636, second opening component 637, and so on. Three-way opening component 638, fourth-way opening component 639, first support claw 640, second support claw 641, third support claw 642, fourth support claw 643, bag lifting component 644, first opening cylinder 645, first triangular plate 646, folding edge drive component 650, transmission component 651, third guide rail 652, fifth slider 653, sixth slider 654, first shrink plate 655, second shrink plate 656, first folding edge component 657, second folding edge component 658; The filling mechanism 700, the filling translation drive component 701, the lifting drive component 702, the filling head 703, the tapping component 704, and the bottom lifting component 705; Sealing mechanism 800, bag clamping and translation drive 811, bag clamping drive 812, bag clamping component 813, exhaust cylinder 820, exhaust component 821, first sealing cylinder 830, first sealing knife 831, second sealing cylinder 832, second sealing knife 833, lower bag guide plate 840, collecting belt 841, packaging bag 9. Detailed Implementation

[0030] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element. Example

[0032] like Figures 1 to 17 As shown, this embodiment provides a packaging device, which can be a folding filling and sealing machine, used to fold and stack single sheet materials, accumulate multiple sheets, and then pack them into the same packaging bag 9. The packaging bag 9 is then filled with fluid and sealed. The sheet material can be a facial mask cloth, cotton cloth, or other flexible sheet material. The packaging bag 9 can be a zipper bag, a regular packaging bag, or a gusseted bag with a side folding structure.

[0033] like Figure 1 As shown, the packaging equipment in this embodiment includes a frame 100, a feeding assembly, a cotton storage mechanism 300, a material handling and transfer mechanism 400, a bag storage mechanism 500, a bag handling mechanism, a bag opening mechanism 600, a filling mechanism 700, and a sealing mechanism 800.

[0034] The feeding assembly is used to convey and fold single sheet materials, and sequentially feeds the folded sheet materials into the cotton storage mechanism 300; the cotton storage mechanism 300 is used to receive and stack the folded sheet materials; the material handling and transfer mechanism 400 is used to remove the stacked sheet materials that have reached a preset quantity from the cotton storage mechanism 300 and transfer them to the packaging bag 9; the bag storage mechanism 500 is used to store the packaging bags 9 to be used; the bag taking mechanism is used to take the packaging bags 9 out of the bag storage mechanism 500 and transfer them to the bag opening mechanism 600; the bag opening mechanism 600 is used to open and stretch the bag opening of the packaging bag 9; the filling mechanism 700 is used to fill the packaging bag 9 with fluid after it has been filled with stacked sheet materials; the sealing mechanism 800 is used to vent, fold the edges and seal the packaging bag 9 after filling.

[0035] like Figure 10As shown, the feeding assembly is located upstream of the cotton storage mechanism 300 and is used to continuously supply folded sheet material to the cotton storage mechanism 300. The feeding assembly includes a folding mechanism 200, which includes a pre-folding assembly and a folding assembly located downstream of the pre-folding assembly. The pre-folding assembly is used to fold the opposite sides of the sheet material inwards respectively, and the folding assembly is used to further fold the sheet material after the two sides have been folded, and then feed the folded sheet material into the cotton storage mechanism 300.

[0036] like Figure 10 As shown, the pre-folding assembly includes a feeding belt 210, a pressing wheel 211, a first folding plate 212, a first pressure plate 213, a second folding plate 214, and a second pressure plate 215.

[0037] The clamping roller 211 is positioned above the feeding belt 210, forming a clamping gap between the clamping roller 211 and the feeding belt 210 for the sheet material to pass through. After the sheet material is placed on the feeding belt 210, the clamping roller 211 presses the sheet material firmly against the feeding belt 210, causing the sheet material to move forward synchronously with the feeding belt 210, reducing the possibility of relative sliding between the sheet material and the feeding belt 210, which could lead to a shift in the folding position.

[0038] The first folding plate 212 and the first pressure plate 213 are arranged along the conveying direction of the feeding belt 210. When the sheet material passes through the first pressure plate 213 and the first folding plate 212, the first pressure plate 213 restricts one side of the sheet material, and the first folding plate 212 folds that side of the sheet material inward.

[0039] The second folding plate 214 and the second pressure plate 215 are also arranged along the conveying direction of the feeding belt 210, and are used to restrict and fold the other side of the sheet material, so that the opposite sides of the sheet material are folded inward in sequence. The first folding plate 212 and the second folding plate 214 can be staggered back and forth along the conveying direction of the feeding belt 210 to complete the folding action of the two sides of the sheet material in sequence.

[0040] Combination Figure 2 , Figure 10 and Figure 12 As shown, the folding assembly includes a sensor 216 and a folding blade 217. The sensor 216 can be a fiber optic sensor, a photoelectric sensor, or other detection device capable of detecting the position of the sheet material, and the folding blade 217 is used to fold the sheet material that has been folded on both sides again.

[0041] Sensor 216 is positioned at the detection location corresponding to folding blade 217 and is signal-connected to the drive structure of folding blade 217. After the sheet material has been folded on both sides, it continues to move forward with the feeding belt 210. When sensor 216 detects that the sheet material has reached the position corresponding to folding blade 217, sensor 216 outputs a trigger signal. Folding blade 217 responds to the trigger signal and folds the sheet material again along the predetermined folding position, and then feeds the folded sheet material into the stacking gap 320 of the cotton storage mechanism 300.

[0042] Through the cooperation of the feeding belt 210, the pressure roller 211, the first folding plate 212, the first pressure plate 213, the second folding plate 214, the second pressure plate 215, the sensor 216 and the folding knife 217, the conveying of sheet materials, the pre-folding of both sides and the overall folding can be completed in sequence, so that each sheet material enters the cotton storage mechanism 300 in a relatively consistent folding method and folding position.

[0043] like Figures 11 to 13 As shown, the cotton storage mechanism 300 includes a movable seat 310, a movable guide rail 311, a switching drive component 312, a stacking gap 320, a pushing drive component 321, a pushing component 322, a mating groove 323, a first material feeding port 324, a limiting component 325, a limiting component drive cylinder 326, a cotton trough guard plate 327, a material blocking component 328, a second material feeding port 329, a supporting component 330, and a cotton trough width adjusting handwheel 331.

[0044] like Figure 11 As shown, two cotton trough guards 327 are arranged opposite to each other, forming a cotton storage trough between the two cotton trough guards 327 for receiving stacked sheet materials. The pusher 322, the baffle 328, and the two cotton trough guards 327 together define a stacking gap 320 for receiving and stacking sheet materials.

[0045] A baffle 328 is positioned on the side of the stacking gap 320 away from the pusher 322 to prevent the sheet material in the stacking gap 320 from tilting away from the pusher 322. Two cotton trough guard plates 327 limit the sheet material from the other two sides, allowing the sheet material entering the stacking gap 320 to be stacked sequentially in a predetermined direction.

[0046] The cotton trough width adjusting handwheel 331 is drivenly connected to at least one cotton trough guard plate 327, and is used to drive at least one cotton trough guard plate 327 to move relative to another cotton trough guard plate 327 to adjust the distance between the two cotton trough guard plates 327.

[0047] By adjusting the cotton trough width adjustment handwheel 331, the width of the cotton storage trough can be adjusted according to the width, folding size, or stacking state of the sheet material, so that the two cotton trough guard plates 327 can appropriately limit the stacked sheet material, while avoiding the distance between the two cotton trough guard plates 327 being too small, which would prevent the sheet material from entering or being taken out by the material transfer mechanism 400.

[0048] like Figure 12 As shown, the folding blade 217 corresponds to the stacking gap 320. After folding the sheet material in half, the folding blade 217 feeds the folded sheet material into the stacking gap 320.

[0049] A retaining member 330 is disposed on one side of the stacking gap 320. After the sheet material enters the stacking gap 320, the retaining member 330 actuates and holds the sheet material, preventing the folding blade 217 from carrying the sheet material out of the stacking gap 320 during its retraction. After the folding blade 217 retracts, the folded sheet material is left in the stacking gap 320.

[0050] The abutment 330 can be a cylinder, with the telescopic end of the cylinder forming an abutment end for abutting the sheet material. The abutment 330 can also be an electric actuator, a linear module, or other drive structure capable of switching between abutting and releasing positions.

[0051] The limiting member 325 is disposed on opposite sides of the stacking gap 320 and can switch between a limiting position and a clearance position. In the limiting position, the limiting member 325 extends into the stacking gap 320 to block the movement of sheet material within the stacking gap 320; in the clearance position, the limiting member 325 retracts from the stacking gap 320 to allow the pusher 322 and the sheet material to pass through.

[0052] Two limiting members 325 are respectively connected to corresponding limiting member driving cylinders 326, and the limiting member driving cylinders 326 drive the two limiting members 325 to move away from each other or closer to each other. The limiting members 325 can be in the form of plates, rods, or blades.

[0053] like Figure 12 and Figure 13As shown, each time the stacking gap 320 receives folded sheet material, the limiting member 325 is in the limiting position. The folding knife 217 feeds the folded sheet material between the limiting member 325 and the pushing member 322. The holding member 330 actuates and holds the folded sheet material. The folding knife 217 retracts, and the folded sheet material remains between the limiting member 325 and the pushing member 322. Then, the limiting member drive cylinder 326 first drives the two limiting members 325 to move outward, causing the limiting members 325 to switch to the avoidance position. Subsequently, the push drive 321 drives the pusher 322 to move toward the stop 328, pushing the folded sheet material remaining between the limiter 325 and the pusher 322 into the cotton storage groove. Then, the limiter drive cylinder 326 retracts, putting the limiter 325 in the limit position. At the same time, the push drive 321 retracts, causing the pusher 322 to return to its original position. Thus, the folded sheet material remains in the cotton storage groove due to the obstruction of the limiter 325, and the stacking gap 320 is ready to receive the next folded sheet material.

[0054] After the number of sheet materials collected in the stacking gap 320 reaches a preset quantity, the limiting member drive cylinder 326 first drives the two limiting members 325 to move outward, so that the limiting members 325 switch to the avoidance position; then, the push drive member 321 drives the pusher member 322 to move toward the stop member 328, pushing the sheet materials stacked in the stacking gap 320 to the predetermined picking position.

[0055] The pusher 322 is provided with a mating groove 323 corresponding to the limiting member 325. After the pusher 322 pushes the sheet material to the cotton storage trough or the predetermined material picking position, the limiting member drive cylinder 326 drives the two limiting members 325 to move closer to each other, so that the two limiting members 325 are respectively inserted into the mating groove 323 on the pusher 322.

[0056] Subsequently, the push drive 321 drives the pusher 322 to retract, and the limiter 325 blocks the sheet material, preventing the sheet material from retracting with the pusher 322, thereby leaving the stacked sheet material in the cotton storage trough.

[0057] In another working state, the pusher 322 pushes the stacked sheet material to the picking position after reaching the preset quantity and keeps it from retracting, so that the stacked sheet material is restricted between the pusher 322 and the stop 328, waiting for the picking and transfer mechanism 400 to clamp it.

[0058] The pusher 322 is provided with a plurality of first feeding ports 324, and the stopper 328 is provided with a plurality of second feeding ports 329. The first feeding ports 324 and the second feeding ports 329 are distributed at intervals along the width direction of the stacked sheet material and correspond to the positions of the plurality of feeding ends 414 of the feeding and transfer mechanism 400.

[0059] When the material handling and transfer mechanism 400 picks up the stacked material, the material handling end 414 on one side passes through the first material handling port 324, and the material handling end 414 on the other side passes through the second material handling port 329, so that the material handling ends 414 on both sides can extend into the opposite sides of the stacked material.

[0060] Combination Figure 2 and Figure 11 As shown, this embodiment includes a first cotton storage trough 301 and a second cotton storage trough 302, both of which are mounted on the movable base 310.

[0061] The movable seat 310 is movably mounted on the movable guide rail 311. The switching drive unit 312 is connected to the movable seat 310 and is used to drive the movable seat 310 to move along the movable guide rail 311, so that the first cotton storage trough 301 and the second cotton storage trough 302 switch between the position corresponding to the folding mechanism 200 and the position corresponding to the material transfer mechanism 400.

[0062] When the first cotton storage trough 301 is connected to the folding mechanism 200, the second cotton storage trough 302 is connected to the second material handling and transfer mechanism 402 or the first material handling and transfer mechanism 401; when the second cotton storage trough 302 is connected to the folding mechanism 200, the first cotton storage trough 301 is connected to another material handling and transfer mechanism.

[0063] By guiding the movable seat 310 with the movable guide rail 311, the movement stability and alignment accuracy when switching positions of the first cotton storage groove 301 and the second cotton storage groove 302 can be improved.

[0064] like Figure 8 As shown, the material transfer mechanism 400 includes a translation guide rail 410, a lifting guide rail 411, a clamping drive member 412, and two oppositely arranged clamping members 413, each of which is provided with at least one material picking end 414.

[0065] The translation guide rail 410 extends between the cotton storage mechanism 300 and the bag opening mechanism 600, and is used to guide the clamping member 413 to move between the cotton storage mechanism 300 and the bag opening mechanism 600. The lifting guide rail 411 is arranged in the vertical direction, and is used to guide the clamping member 413 to move up and down relative to the cotton storage trough and the packaging bag 9.

[0066] The clamping drive 412 is connected to the two clamping members 413 and is used to drive the two clamping members 413 to move closer to each other or further apart. The clamping drive 412 can be a cylinder, an electric gripper, or other drive device capable of outputting opposing clamping actions.

[0067] Multiple picking ends 414 are spaced apart on the clamping member 413, and the multiple picking ends 414 correspond to the first picking port 324 and the second picking port 329 respectively. The picking ends 414 can be grippers extending along the clamping direction.

[0068] When the material transfer mechanism 400 needs to take out the stacked material from the cotton storage mechanism 300, the clamping drive 412 drives the two oppositely arranged clamping members 413 to open. The clamping drive 412 and the clamping members 413 descend along the lifting guide rail 411, so that the material taking ends 414 on the two clamping members 413 pass through the first material taking port 324 and the second material taking port 329 respectively.

[0069] After the picking end 414 enters the opposite sides of the stacked sheet material, the clamping drive 412 drives the two clamping members 413 to move closer to each other, so that the picking end 414 on both sides clamps the stacked sheet material from the opposite sides of the stacked sheet material.

[0070] After the stacked sheet material is clamped, the two clamping members 413 rise along the lifting guide rail 411, causing the stacked sheet material to leave the first cotton storage trough 301 or the second cotton storage trough 302. Subsequently, the clamping members 413 move along the translation guide rail 410 from above the cotton storage mechanism 300 to above the bag opening mechanism 600, and then descend along the lifting guide rail 411 to feed the stacked sheet material into the packaging bag 9 that has been opened by the bag opening mechanism 600.

[0071] The clamping drive 412 drives the two clamping members 413 to open and release the stacked material, leaving the stacked material inside the packaging bag 9. Afterward, the two clamping members 413 rise and return to the cotton storage mechanism 300 along the translation guide 410, waiting for the next material retrieval.

[0072] The material-grabbing end 414 penetrates and clamps the stacked sheet material from the side, which reduces direct contact between the material-grabbing end 414 and the effective area of ​​the sheet material surface, thus reducing the possibility of indentation, curling, or local deformation of the flexible sheet material. Simultaneous clamping by multiple material-grabbing ends 414 also allows the clamping force to be distributed along the width of the stacked sheet material, improving the stability during the transfer of thicker stacked sheet materials.

[0073] In this embodiment, a first material picking and transferring mechanism 401 and a second material picking and transferring mechanism 402 can be provided. The first material picking and transferring mechanism 401 and the second material picking and transferring mechanism 402 correspond to two bagging paths respectively, and switch and cooperate with the first cotton storage trough 301 and the second cotton storage trough 302 respectively.

[0074] like Figure 1 and Figure 3 As shown, the bag storage mechanism 500 is located upstream of the bag opening mechanism 600 and is used to store packaging bags 9 to be used. The bag storage mechanism 500 includes a first guard plate 501 and a second guard plate 502 disposed opposite to each other.

[0075] A storage space for storing the packaging bag 9 is formed between the first protective plate 501 and the second protective plate 502, and the distance between the first protective plate 501 and the second protective plate 502 can be adjusted by the width adjustment member 503.

[0076] The width adjustment component 503 can be a handwheel, a screw adjustment mechanism, or other linear adjustment structure. By operating the width adjustment component 503, the positions of the first guard plate 501 and the second guard plate 502 can be adjusted simultaneously or separately, so that the storage space can accommodate packaging bags 9 of different widths.

[0077] The first limiting member 504 is connected to the first protective plate 501, and the second limiting member 505 is connected to the second protective plate 502. A transition groove for the packaging bag 9 to fall is formed between the first limiting member 504 and the second limiting member 505. A positioning member 507 is provided below the transition groove. The positioning member 507 is used to support and position the packaging bag 9 taken out from the storage space.

[0078] The bag storage mechanism 500 is also provided with a length adjustment component 508. The length adjustment component 508 is used to adjust the height of the bag storage mechanism 500, the transition groove and the positioning component 507 relative to the bag picking mechanism, so that the packaging bag 9 is positioned in a position suitable for the bag picking mechanism to pick up, so as to accommodate packaging bags 9 of different lengths.

[0079] The bag-retrieving mechanism may include a first bag-retrieving mechanism 506 and a bag-retrieving translation mechanism 510. The first bag-retrieving mechanism 506 is used to remove the packaging bag 9 from the bag storage mechanism 500 and place it into the transition groove. After entering the transition groove, the packaging bag 9 falls along the transition groove and is positioned by the positioning member 507 located below the transition groove.

[0080] The bag-taking and translation mechanism 510 is used to remove the positioned packaging bag 9 from the transition groove and transfer it to the bag-opening mechanism 600.

[0081] In some embodiments, the bag-picking translation mechanism 510 may include a bag-picking nozzle and a linear drive mechanism, with the bag-picking nozzle disposed at the output end of the linear drive mechanism. The linear drive mechanism drives the bag-picking nozzle to reciprocate between the positioning member 507 and the bag-opening mechanism 600.

[0082] When the bag-taking nozzle moves to the positioning part 507, it adsorbs the packaging bag 9. Then, under the drive of the linear drive mechanism, the packaging bag 9 is moved horizontally to the bag opening mechanism 600. After the packaging bag 9 reaches the bag opening position, it is released or held adsorbed, waiting for the bag opening mechanism 600 to open the bag opening.

[0083] like Figures 4 to 7As shown, the bag opening mechanism 600 includes a suction opening component 610 and a bag opening supporting component 620. The suction opening component 610 is used to suction the opposite sides of the bag opening of the packaging bag 9 and drive the opposite sides of the bag opening away from each other to initially open the bag opening; the bag opening supporting component 620 is used to extend into the bag opening after the bag opening is initially opened and to open the bag opening in two different directions, so that the bag opening forms a regular opening that allows stacked sheet-like materials to pass through.

[0084] like Figure 4 As shown, the suction-opening assembly 610 includes a first drive motor 611, a first synchronous belt 612, a first slider 613, a second slider 614, a first suction arm 615, a second suction arm 616, a first suction cup 617, and a second suction cup 618.

[0085] The first synchronous belt 612 is arranged in a ring shape, and the first slider 613 and the second slider 614 are movably disposed on the corresponding guide structure. The first slider 613 is connected to one side of the first synchronous belt 612, and the second slider 614 is connected to the other side of the first synchronous belt 612.

[0086] When the first drive motor 611 drives the first synchronous belt 612 to move, the first slider 613 and the second slider 614 move in opposite directions, causing the first slider 613 and the second slider 614 to move closer to each other or further away from each other.

[0087] The first suction arm 615 is connected to the first slider 613, and the second suction arm 616 is connected to the second slider 614. The first suction cup 617 is disposed on the first suction arm 615, and the second suction cup 618 is disposed on the second suction arm 616. The first suction cup 617 and the second suction cup 618 are respectively located on opposite sides of the packaging bag 9, and are used to adsorb the two opposite bag surfaces of the bag opening of the packaging bag 9.

[0088] After the packaging bag 9 is delivered to the space between the first suction cup 617 and the second suction cup 618 by the bag-taking and translation mechanism 510, the first drive motor 611 drives the first synchronous belt 612 to move, so that the first slider 613 and the second slider 614 move closer to each other, thereby making the first suction cup 617 and the second suction cup 618 contact and adsorb the two opposite bag surfaces of the packaging bag 9 respectively.

[0089] After the first suction cup 617 and the second suction cup 618 complete adsorption, the first drive motor 611 drives the first synchronous belt 612 in the opposite direction, causing the first slider 613 and the second slider 614 to move away from each other, thereby causing the two opposite bag surfaces of the packaging bag 9 to move away from each other, thus achieving the initial opening of the bag opening.

[0090] like Figure 5 and Figure 6As shown, the bag support assembly 620 includes a second drive motor 621, a second synchronous belt 622, a second guide rail 623, a third slider 624, a fourth slider 625, a first intermediate component 626, a second intermediate component 627, a first guide rod 628, a second guide rod 629, a third guide rod 630, a fourth guide rod 631, a first slide block 632, a second slide block 633, a third slide block 634, a fourth slide block 635, a first opening component 636, a second opening component 637, a third opening component 638, a fourth opening component 639, a first support claw 640, a second support claw 641, a third support claw 642, a fourth support claw 643, a bag support lifting component 644, a first opening cylinder 645, and a first triangular plate 646.

[0091] The third slider 624 and the fourth slider 625 are movably disposed on the second guide rail 623 and are respectively connected to two segments of the second synchronous belt 622 with opposite directions of movement. After the second drive motor 621 drives the second synchronous belt 622 to rotate, the third slider 624 and the fourth slider 625 move in opposite directions along the second guide rail 623.

[0092] The first intermediate component 626 is disposed on the third slider 624, and the second intermediate component 627 is disposed on the fourth slider 625. The first guide rod 628 is disposed on the first intermediate component 626, and the second guide rod 629 is disposed on the second intermediate component 627.

[0093] The first slide block 632 and the second slide block 633 are respectively disposed on the first guide rod 628 on both sides of the first intermediate member 626, and the third slide block 634 and the fourth slide block 635 are respectively disposed on the second guide rod 629 on both sides of the second intermediate member 627.

[0094] The third guide rod 630 is disposed on the third slide block 634 and slidably connected to the first slide block 632, and the fourth guide rod 631 is disposed on the fourth slide block 635 and slidably connected to the second slide block 633.

[0095] The first support member 636 is disposed on the first slide block 632, the second support member 637 is disposed on the second slide block 633, the third support member 638 is disposed on the third slide block 634, and the fourth support member 639 is disposed on the fourth slide block 635.

[0096] The ends of the first support member 636, the second support member 637, the third support member 638 and the fourth support member 639 are respectively provided with a first support claw 640, a second support claw 641, a third support claw 642 and a fourth support claw 643.

[0097] The first support claw 640 and the third support claw 642 are arranged opposite each other, and the second support claw 641 and the fourth support claw 643 are arranged opposite each other. After the second drive motor 621 drives the second synchronous belt 622 to move, the third slider 624 and the fourth slider 625 move in opposite directions. Through the first intermediate member 626, the second intermediate member 627, the first guide rod 628, the second guide rod 629 and each slide block, the first support claw 640 and the third support claw 642 move closer or further apart, and at the same time, the second support claw 641 and the fourth support claw 643 move closer or further apart, thereby adjusting the opening size of the bag opening along the first direction.

[0098] The telescopic end of the first expansion cylinder 645 is connected to the first triangular plate 646. The third guide rod 630 and the fourth guide rod 631 are respectively provided with rolling fit structures at positions corresponding to the first triangular plate 646. The two inclined surfaces of the first triangular plate 646 respectively abut against the corresponding rolling fit structures.

[0099] When the first expansion cylinder 645 extends, the first triangular plate 646 moves, and the two inclined surfaces of the first triangular plate 646 push the third guide rod 630 and the fourth guide rod 631 away from each other, thereby increasing the distance between the third guide rod 630 and the fourth guide rod 631.

[0100] As the distance between the third guide rod 630 and the fourth guide rod 631 increases, the side containing the first support claw 640 and the third support claw 642 moves further away from the side containing the second support claw 641 and the fourth support claw 643 along the second direction. When the first expansion cylinder 645 retracts, the distance between the third guide rod 630 and the fourth guide rod 631 decreases, causing the bag support assembly 620 to retract along the second direction.

[0101] The bag lifting component 644 is used to drive the first support claw 640, the second support claw 641, the third support claw 642 and the fourth support claw 643 to rise and fall, so that each support claw enters or exits the bag opening of the packaging bag 9.

[0102] like Figure 7 As shown, after the packaging bag 9 is initially opened by the suction opening component 610, the second drive motor 621 and the first opening cylinder 645 respectively adjust the first direction distance and the second direction distance to a smaller state. The bag opening lifting component 644 drives the first support claw 640, the second support claw 641, the third support claw 642 and the fourth support claw 643 to descend and extend into the bag opening.

[0103] Subsequently, the second drive motor 621 drives the first support claw 640 and the third support claw 642, as well as the second support claw 641 and the fourth support claw 643, to move away from each other. At the same time, the first opening cylinder 645 drives the first triangular plate 646 to move, so that the four support claws move away from each other in another direction, thereby opening the bag opening of the packaging bag 9 into a regular opening that is approximately quadrilateral.

[0104] like Figure 9 As shown, the filling mechanism 700 includes a filling head 703, which is positioned above the bag opening mechanism 600 and is used to fill the packaging bag 9, which has been filled with stacked sheet materials, with fluid. The fluid can be an essence, a care solution, or other liquid that needs to be packaged together with the sheet materials.

[0105] The filling mechanism 700 also includes a filling translation drive 701, a lifting drive 702, a tapping component 704, and a bottom lifting component 705.

[0106] The filling translation drive 701 is used to drive the filling head 703 to move between the clearance position and the filling position above the packaging bag 9. The lifting drive 702 is used to drive the filling head 703 to rise or fall, so that the filling head 703 inserts into or exits the bag opening of the packaging bag 9.

[0107] After the stacked sheet material is placed into the packaging bag 9 by the material handling and transfer mechanism 400, the filling translation drive 701 drives the filling head 703 to move directly above the packaging bag 9, and the lifting drive 702 drives the filling head 703 to descend and insert into the bag opening of the packaging bag 9. After the filling head 703 reaches the predetermined filling position, it fills the packaging bag 9 with fluid.

[0108] During the filling process, the bottom support 705 extends and supports the bottom of the packaging bag 9 to bear the weight of the packaging bag 9 due to the filling fluid, thereby reducing the possibility of the packaging bag 9 falling off the opening mechanism 600.

[0109] The striking element 704 is disposed on at least one side of the packaging bag 9 and is used to continuously perform the extension and retraction actions and strike the bag body of the packaging bag 9, so that the fluid in the packaging bag 9 can penetrate into the stacked sheet material more quickly under the action of vibration and reduce the situation of fluid concentration in local positions.

[0110] Combination Figure 9 and Figure 15 As shown, after filling is completed, the lifting drive 702 drives the filling head 703 to rise and exit the packaging bag 9, and the filling translation drive 701 drives the filling head 703 to leave the packaging bag 9.

[0111] The first suction cup 617 and the second suction cup 618 are brought closer together, the first support claw 640 and the third support claw 642 are brought closer together, and the second support claw 641 and the fourth support claw 643 are brought closer together, so that the size of the bag opening of the packaging bag 9 is reduced, which facilitates subsequent bag clamping and sealing.

[0112] like Figures 15 to 17 As shown, the sealing mechanism 800 includes a bag clamping and translation mechanism, a sealing drive component, a sealing component, an venting assembly, and a folding assembly.

[0113] like Figure 15 and Figure 16As shown, the bag clamping and translation mechanism includes a bag clamping and translation drive 811, a bag clamping drive 812, and two oppositely arranged bag clamping components 813.

[0114] The bag-clamping translation drive 811 is used to drive the bag-clamping drive 812 and the two bag-clamping parts 813 to reciprocate between the bag opening mechanism 600 and the sealing position. The bag-clamping drive 812 is used to drive the two bag-clamping parts 813 to move closer to each other or further apart.

[0115] After the packaging bag 9 is filled and the bag opening is reduced, the bag clamping drive 812 drives the two bag clamping parts 813 to open, and the bag clamping translation drive 811 drives the bag clamping drive 812 and the two bag clamping parts 813 to move towards the bag opening mechanism 600, so that the packaging bag 9 is located between the two bag clamping parts 813.

[0116] The bag clamping drive 812 then drives the two bag clamping parts 813 to move closer to each other and clamp the packaging bag 9. After the packaging bag 9 is clamped, the bottom lifting part 705 descends and releases the support on the bottom of the packaging bag 9, and the bag clamping translation drive 811 moves the packaging bag 9 from the bag opening mechanism 600 to the sealing position.

[0117] like Figure 17 As shown, the exhaust assembly is located at the sealed position and includes an exhaust cylinder 820 and two oppositely arranged exhaust components 821. The exhaust cylinder 820 is connected to at least one exhaust component 821 and is used to drive the two exhaust components 821 to move closer to or further away from each other.

[0118] After the packaging bag 9 is moved to the sealing position, the exhaust cylinder 820 drives the two exhaust components 821 to approach each other from opposite sides of the packaging bag 9, squeezing the packaging bag 9 and causing the excess gas inside the packaging bag 9 to be discharged from the unsealed bag opening.

[0119] After the venting is completed, the two venting components 821 can continue to limit the packaging bag 9, or move away from each other after the sealing component clamps the packaging bag 9.

[0120] Combination Figure 5 , Figure 14 and Figure 15 As shown, when the packaging bag 9 is a gusseted bag or has inwardly foldable sides on both sides of the bag opening, the sealing mechanism 800 also includes a folding assembly.

[0121] The folding assembly includes a folding drive component 650, a transmission component 651, a third guide rail 652, a fifth slider 653, a sixth slider 654, a first shrink plate 655, a second shrink plate 656, a first folding component 657, and a second folding component 658.

[0122] The fifth slider 653 and the sixth slider 654 are movably disposed on the third guide rail 652 and can move closer to or further away from each other along the third guide rail 652. The first shrink plate 655 is disposed on the fifth slider 653 and the second shrink plate 656 is disposed on the sixth slider 654.

[0123] The first folding piece 657 is located at the end of the first shrink plate 655, and the second folding piece 658 is located at the end of the second shrink plate 656. The first folding piece 657 and the second folding piece 658 are located on the left and right sides of the opening of the packaging bag 9, respectively.

[0124] The transmission component 651 is located at the output end of the folding drive component 650. When the folding drive component 650 drives the transmission component 651 to move along the first direction, the transmission component 651 pushes the fifth slider 653 and the sixth slider 654 away from each other along the third guide rail 652, thereby causing the first shrink plate 655 and the second shrink plate 656 to move away from each other, so that the first folding component 657 and the second folding component 658 are in the open position.

[0125] like Figure 14 As shown, when the gusseted bag is filled and the bag opening needs to be folded, the folding drive 650 drives the transmission 651 to move in the opposite direction, so that the fifth slider 653 and the sixth slider 654 move closer to each other along the third guide rail 652, and the first shrink plate 655 and the second shrink plate 656 move closer to each other, thereby driving the first folding piece 657 and the second folding piece 658 to move closer to the left and right ends of the bag opening of the packaging bag 9.

[0126] The first folding piece 657 and the second folding piece 658 fold the left and right ends of the bag opening 9 inwards, so that the bag opening of the gusseted bag forms a flat shape suitable for sealing.

[0127] The third guide rail 652 guides the opposing movement of the fifth slider 653 and the sixth slider 654. The first shrink plate 655 and the second shrink plate 656 are used to connect the corresponding sliders and the folding parts, so that the driving force generated by the folding drive 650 can be stably transmitted to the first folding part 657 and the second folding part 658.

[0128] like Figure 17 As shown, the sealing drive includes a first sealing cylinder 830 and a second sealing cylinder 832, and the sealing component includes a first sealing knife 831 and a second sealing knife 833.

[0129] The first sealing knife 831 and the second sealing knife 833 are arranged opposite to each other. The first sealing cylinder 830 is used to drive the first sealing knife 831 to move, and the second sealing cylinder 832 is used to drive the second sealing knife 833 to move, so that the first sealing knife 831 and the second sealing knife 833 move closer to each other or further away from each other.

[0130] After the packaging bag 9 completes the venting and folding, the first sealing cylinder 830 and the second sealing cylinder 832 drive the first sealing knife 831 and the second sealing knife 833 to move closer to each other, clamping and heating the opening of the packaging bag 9 located between them, so that the opening of the packaging bag 9 forms a heat-sealed structure.

[0131] After sealing is completed, the first sealing knife 831 and the second sealing knife 833 move away from each other, the venting component 821 moves away from each other and releases the restriction on the packaging bag 9, and the bag clamping component 813 releases the packaging bag 9.

[0132] Combination Figure 1 and Figure 17 As shown, a lower bag guide plate 840 and a collection belt 841 are provided below the sealing mechanism 800. The lower bag guide plate 840 extends from the sealing position towards the collection belt 841 and is used to guide the packaging bag 9 that falls after sealing.

[0133] After the bag clamp 813 releases the packaging bag 9, the packaging bag 9 falls to the lower bag guide plate 840 under the action of gravity, and slides down the lower bag guide plate 840 to the collection belt 841. The collection belt 841 transports the packaging bag 9 to the predetermined collection position for subsequent sorting, packing or quality inspection.

[0134] By setting up the bag guide plate 840, the possibility of the packaging bag 9 flipping, colliding, or deviating from the collection belt 841 due to its free fall from the sealing position can be reduced. By setting up the collection belt 841, the sealed packaging bags 9 can be continuously received, so that the sealing station and the subsequent collection process can be connected.

[0135] like Figure 2 and Figure 11 As shown, in this embodiment, the cotton storage mechanism 300, the material transfer mechanism 400, the bag storage mechanism 500, the bag taking mechanism, the bag opening mechanism 600, the filling mechanism 700, and the sealing mechanism 800 can all be set up in two groups, with the two groups of mechanisms corresponding to two bagging and sealing paths respectively.

[0136] The first cotton storage trough 301 and the second cotton storage trough 302 are disposed on the same movable seat 310. After the first cotton storage trough 301 moves to the position corresponding to the folding mechanism 200, the first cotton storage trough 301 is used to receive the folded sheet material fed in by the folding mechanism 200; at the same time, the second cotton storage trough 302 moves to the position below the corresponding first material picking and transferring mechanism 401, so that the first material picking and transferring mechanism 401 can pick up the stacked sheet material that has reached the preset quantity.

[0137] After the number of sheet materials collected in the first cotton storage trough 301 reaches a preset quantity, and the stacked sheet materials in the second cotton storage trough 302 have been removed by the first material transfer mechanism 401, the switching drive 312 drives the moving seat 310 to move along the moving guide rail 311, so that the positions of the first cotton storage trough 301 and the second cotton storage trough 302 are switched.

[0138] The second cotton storage trough 302 moves below the folding mechanism 200 to begin receiving sheet materials, while the first cotton storage trough 301 moves below the second material handling and transfer mechanism 402 to wait for material handling.

[0139] After the number of sheet materials collected in the second cotton storage trough 302 reaches a preset quantity, and the stacked sheet materials in the first cotton storage trough 301 have been removed by the second material transfer mechanism 402, the switching drive 312 drives the moving seat 310 to move again, so that the first cotton storage trough 301 and the second cotton storage trough 302 return to the previous working position.

[0140] By alternately performing material stacking and material removal actions in the first cotton storage trough 301 and the second cotton storage trough 302, the folding mechanism 200 does not have to wait for the material transfer mechanism 400 to complete the bagging, and the material transfer mechanism 400 does not have to wait for the cotton storage trough to re-stack the sheet materials, thereby achieving continuous production.

[0141] like Figure 1 As shown, the packaging equipment also includes a mounting plate 110. The bag storage mechanism 500, bag picking mechanism, bag opening mechanism 600, material transfer mechanism 400, and sealing mechanism 800 are all mounted on the mounting plate 110, and the filling mechanism 700 can be mounted on the sealing mechanism 800 or the mounting plate 110.

[0142] The mounting plate 110 is movable relative to the cotton storage mechanism 300 and is mounted on the frame 100. The mounting plate 110 is connected to the mounting plate forward and backward movement adjustment member 111, which is used to drive the mounting plate 110 to move forward and backward relative to the frame 100.

[0143] The mounting plate forward and backward adjustment component 111 can be adjusted using a handwheel and screw mechanism. When the operator rotates the mounting plate forward and backward adjustment component 111, the mounting plate 110 can be driven to move forward and backward relative to the frame 100, thereby synchronously adjusting the positions of the bag storage mechanism 500, bag picking mechanism, bag opening mechanism 600, material transfer mechanism 400, filling mechanism 700, and sealing mechanism 800 relative to the cotton storage mechanism 300.

[0144] The number of sheet materials to be stacked in the cotton storage trough can be set according to the product specifications. When the preset quantity is small, the overall thickness of the stacked sheet materials is small; when the preset quantity is large, the overall thickness of the stacked sheet materials is large.

[0145] Since the initial positions of the folding blade 217 and the stacking gap 320 are relatively fixed, when the thickness of the stacked sheet material changes, the position of the material taking center of the stacked sheet material may also change in the front-back direction.

[0146] By adjusting the position of the mounting plate 110 using the mounting plate forward and backward adjustment component 111, the clamping center of the material transfer mechanism 400, the bag opening center of the bag opening mechanism 600, the filling position of the filling mechanism 700, and the sealing position of the sealing mechanism 800 can be synchronously adapted to the changes in the center position of the stacked material.

[0147] Therefore, the alignment between the cotton storage, material retrieval, bagging, filling and sealing stations can be maintained without adjusting the positions of multiple mechanisms separately.

[0148] The above description is merely a specific embodiment of the present invention. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A packaging device, characterized in that it comprises: The cotton storage mechanism has a stacking gap for stacking the sheet material, and at least two sides of the stacking gap are respectively provided with material inlets; A bag opening mechanism is located on one side of the cotton storage mechanism and is used to open the bag opening of the packaging bag; A material handling and transfer mechanism is used to transfer the stacked sheet material from the cotton storage mechanism to the packaging bag. The material handling and transfer mechanism includes at least two material handling ends, and the at least two material handling ends are respectively corresponding to at least two material handling ports. A sealing mechanism is used to seal the packaging bag after the stacked sheet material has been filled into it; A feeding assembly is located upstream of the cotton storage mechanism. The feeding assembly includes a folding mechanism, which is used to fold a single sheet of the sheet material and feed it into the stacking gap. The at least two material-taking ends are configured to be able to pass through the corresponding material-taking ports to clamp the stacked sheet material located in the stacking gap and transfer the stacked sheet material into the packaging bag whose opening is opened by the bag-opening mechanism.

2. The packaging equipment according to claim 1, characterized in that, The cotton storage mechanism also includes a pusher, a stopper, a limiter, and a pusher drive. The abutment is disposed on one side of the stacking gap and is used to abut the sheet material after the sheet material is fed into the stacking gap; The limiting members are disposed on opposite sides of the stacking gap and configured to switch between a limiting position and a clearance position; in the limiting position, the limiting members extend into the stacking gap to block the movement of the sheet material; in the clearance position, the limiting members retract from the stacking gap to allow the sheet material and the pusher to pass through. The push drive is connected to the pusher and is used to drive the pusher to move toward the stacking gap so as to push the sheet material stacked in the stacking gap to the picking position corresponding to the picking port.

3. The packaging equipment according to claim 2, characterized in that, The pusher is provided with a mating groove corresponding to the limiting member; The limiting member is configured such that after the pusher pushes the sheet material to the picking position, it switches from the avoidance position to the limiting position and inserts into the mating groove, so as to prevent the sheet material from moving with the pusher when the pusher retracts, so that the sheet material remains in the cotton storage mechanism.

4. The packaging equipment according to claim 2, characterized in that, The cotton storage mechanism also includes a material blocking component, which is disposed on the side of the stacking gap away from the material pushing component, and is used to prevent the sheet material in the stacking gap from tilting away from the material pushing component.

5. The packaging equipment according to claim 1, characterized in that, The folding mechanism includes a pre-folding component and a bi-folding component. The pre-folding component is used to fold the opposite sides of the sheet material inwards respectively. The bi-folding component is located downstream of the pre-folding component and is used to fold the sheet material in half after it has been folded by the pre-folding component.

6. The packaging equipment according to claim 1, characterized in that, The bag opening mechanism includes a suction opening component and a bag supporting component. The suction opening component is used to suction the opposite sides of the bag opening and pull the bag opening open. The bag supporting component is used to extend into the bag opening after the suction opening component pulls the bag opening open and to open the bag opening open. The bag-supporting assembly includes a first opening drive mechanism and a second opening drive mechanism. The first opening drive mechanism is used to drive the bag-supporting assembly to open the bag opening along a first direction, and the second opening drive mechanism is used to drive the bag-supporting assembly to open the bag opening along a second direction. The first direction is different from the second direction. The first spreading drive mechanism includes a second drive motor, a second synchronous belt, a second guide rail, a third slider, a fourth slider, a first spreading member, a second spreading member, a third spreading member, and a fourth spreading member. The third slider and the fourth slider are movably disposed on the second guide rail and are respectively connected to two belt segments of the second synchronous belt with opposite directions of movement. The first spreading member and the second spreading member are connected to the third slider, and the third spreading member and the fourth spreading member are connected to the fourth slider. The second drive motor is used to drive the second synchronous belt to move, so that the third slider and the fourth slider move in opposite directions, and drive the first opening member and the second opening member to move in opposite directions relative to the third opening member and the fourth opening member, so as to open the bag opening along the first direction; The second opening drive mechanism includes a first opening cylinder and a first triangular plate. The first triangular plate is disposed at the telescopic end of the first opening cylinder. The first triangular plate has two inclined surfaces that respectively abut against the corresponding rolling mating parts. The first opening cylinder is used to drive the first triangular plate to move, so that the two rolling mating parts move away from each other, so as to open the bag opening along the second direction. The first, second, third, and fourth support members are respectively provided with a first support claw, a second support claw, a third support claw, and a fourth support claw at their ends. The first support claw is arranged opposite to the third support claw, and the second support claw is arranged opposite to the fourth support claw.

7. The packaging equipment according to claim 6, characterized in that, The suction opening component includes a suction cup driving mechanism, a first suction cup and a second suction cup, wherein the first suction cup and the second suction cup are respectively used to adsorb the two opposite bag surfaces of the packaging bag opening; The suction cup driving mechanism includes a first drive motor, a first synchronous belt, a first slider and a second slider. The first slider and the second slider are movably disposed on the first guide rail and are respectively connected to two belt segments of the first synchronous belt with opposite directions of movement. The first suction cup is connected to the first slider, and the second suction cup is connected to the second slider. The first drive motor is used to drive the first synchronous belt to move, so that the first slider and the second slider move closer to each other or further away from each other, so that the first suction cup and the second suction cup can attract and open the bag opening.

8. The packaging equipment according to claim 1, characterized in that, It also includes a filling mechanism, which includes a filling head disposed above the bag opening mechanism for filling the packaging bag containing the stacked sheet material with fluid; The filling mechanism also includes a lifting drive and a tapping component. The filling head is used to fill the packaging bag with the fluid. The lifting drive is used to drive the filling head to move up and down, so that the filling head is inserted into or removed from the opening of the packaging bag. The striking element is disposed on at least one side of the packaging bag and is used to strike the bag body during the filling process; The filling mechanism also includes a bottom support component, which is disposed below the packaging bag and is used to support the bottom of the packaging bag during the filling process.

9. The packaging equipment according to claim 1, characterized in that, It also includes a bag storage mechanism and a bag retrieval mechanism; The bag storage mechanism is located upstream of the bag opening mechanism and is used to store the packaging bag to be used. The bag storage mechanism includes a first guard plate and a second guard plate arranged opposite to each other. A storage space for storing the packaging bag is formed between the first guard plate and the second guard plate. The distance between the first guard plate and the second guard plate is adjustable. The bag-retrieving mechanism is located between the bag storage mechanism and the bag-opening mechanism, and is used to remove the packaging bag from the bag storage mechanism and transfer it to the bag-opening mechanism.

10. The packaging equipment according to any one of claims 1 to 9, characterized in that, The sealing mechanism includes a sealing drive and two sealing components. The sealing drive is used to drive the two sealing components to move closer to each other or further away from each other. The two sealing components are used to seal the packaging bag located between them when they move closer to each other. The sealing drive includes a first sealing cylinder and a second sealing cylinder. The two sealing components include a first sealing knife and a second sealing knife. The first sealing cylinder is used to drive the first sealing knife to move, and the second sealing cylinder is used to drive the second sealing knife to move. The first sealing knife and the second sealing knife are used to heat-seal the packaging bag located between them when they come close to each other. The sealing mechanism further includes an exhaust assembly, which is disposed below the first sealing blade and the second sealing blade. The exhaust assembly includes an exhaust cylinder and two exhaust components disposed opposite to each other. The exhaust cylinder is used to drive the two exhaust components to move closer to each other or further away from each other. The two exhaust components are used to squeeze the packaging bag from opposite sides of the packaging bag before sealing to expel the gas inside the packaging bag. The sealing mechanism further includes a folding assembly, which includes a folding drive, a transmission component, a first folding component, and a second folding component. The transmission component is disposed at the output end of the folding drive, and the folding drive is used to drive the first folding component and the second folding component to move away from or towards each other through the transmission component. When the first folding piece and the second folding piece approach each other, the first folding piece and the second folding piece respectively squeeze the bag opening inward from the opposite sides of the bag opening to fold the opposite sides of the bag opening inward.

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