A packaging machine

Abstract

The present application belongs to the technical field of packaging equipment, and particularly relates to a packaging machine, which solves the technical problems of high labor consumption, slow packaging speed and low work efficiency of the existing packaging machine in packaging small packaging bags in large packaging bags, and provides a packaging machine, which comprises at least one packaging device, and the packaging device comprises a bag storage groove for storing a plurality of first packaging bags, a transition groove butted with a bag outlet of the bag storage groove, a guide groove butted with the transition groove to receive the first packaging bags falling from the transition groove, a bag taking assembly, a positioning assembly, an opening bag assembly for opening the positioned first packaging bag, a filling assembly for supplying a plurality of second packaging bags each containing a packaged object into the inner cavity of the first packaging bag, a pushing assembly for applying a pushing force to the second packaging bags in the filling assembly to make the second packaging bags fall into the inner cavity of the first packaging bag, a conveying belt and a sealing assembly. The packaging machine has the advantages of saving labor, fast packaging speed and high work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging equipment technical field, especially to a packaging machine. BACKGROUND

[0002] At present, in many fields, it is required to put a plurality of small packaging bags into a large packaging bag, and each small packaging bag contains and packages a packaged object such as food, for example, in the food processing field, a packaging machine is required to specially put a certain number of small packaging bags into a large packaging bag, specifically, a certain number of small packaging bags containing and packaging peanuts, sardines and other foods are put into a large packaging bag, and the small packaging bags are fluffy and loose and irregular when stacked together in the large packaging bag, so that the small packaging bags can be put into the large packaging bag only by extrusion, therefore, in the case of putting a plurality of small packaging bags into a large packaging bag in many fields including the food processing field, artificial packaging is adopted, and a predetermined number of small packaging bags are counted by artificial, and then the predetermined number of small packaging bags are put into a large packaging bag, so that a large number of labor is required, and the packaging speed is slow and the work efficiency is low.

[0003] Therefore, it is urgent to provide a packaging machine which saves labor, has high packaging speed and high work efficiency. SUMMARY

[0004] In order to achieve the purpose of the present application, the present application comprises at least one packaging device, which comprises: a bag storage groove for storing a plurality of first packaging bags; a transition groove butted with a bag outlet of the bag storage groove; a guide groove butted with the transition groove to receive the first packaging bags falling from the transition groove; a bag taking assembly for taking the first packaging bags in the bag storage groove and placing them into the transition groove; a positioning assembly for positioning the first packaging bags falling from the transition groove into the guide groove to sequentially prevent and allow further falling of the first packaging bags; an opening bag assembly for opening the positioned first packaging bags; a filling assembly for supplying a plurality of second packaging bags each containing a packaged object into the inner cavity of the first packaging bag, the size of the second packaging bag being smaller than the size of the inner cavity of the first packaging bag; a pushing assembly for applying a pushing force to the second packaging bags in the filling assembly to fall into the inner cavity of the first packaging bag; a conveying belt located below the guide groove and relatively butted; a sealing assembly located downstream of the conveying belt relative to the guide groove and sealing the first packaging bags falling from the guide groove onto the conveying belt.

[0005] Further, the bag opening assembly comprises a bag mouth opening assembly and a bag bottom opening assembly. The bag mouth opening assembly comprises a first bag mouth opening cylinder and a first bag opening suction disc connecting plate connected together, and a second bag mouth opening cylinder and a second bag opening suction disc connecting plate connected together. A plurality of pairs of first bag opening suction discs and second bag opening suction discs are arranged on the first bag opening suction disc connecting plate and the second bag opening suction disc connecting plate respectively. The first bag mouth opening cylinder and the second bag mouth opening cylinder drive the first bag opening suction disc connecting plate and the second bag opening suction disc connecting plate to move between two positions of approaching and moving away from each other. At the position of approaching each other, each pair of first bag opening suction discs and second bag opening suction discs are close to each other to adsorb two opposite outer sides of the first packaging bag therebetween. Then, the first bag opening suction discs and the second bag opening suction discs move from the position of approaching each other to the position of moving away from each other, and each pair of first bag opening suction discs and second bag opening suction discs are far away from each other to adsorb the two opposite outer sides away from each other until the bag mouth is completely separated and has the maximum separation distance. The filling assembly fills the first packaging bag through the bag mouth subsequently. The bag bottom opening assembly comprises a blowing pipe translation cylinder and a blowing pipe connecting plate connected together. A plurality of blowing pipes are arranged on the blowing pipe connecting plate. When the two opposite outer sides are in the state of the maximum separation distance, the blowing pipe translation cylinder drives the blowing pipe connecting plate to move the blowing pipes above the bag mouth of the first packaging bag. The blowing pipes blow air into the first packaging bag through the bag mouth to blow open the bag bottom of the first packaging bag.

[0006] Further, the packaging machine further comprises a counting belt assembly. The counting belt assembly comprises a first counting belt, a second counting belt and a third counting belt connected in sequence and sequentially conveying the second packaging bags to the filling assembly. The conveying speed of the second counting belt is greater than the conveying speed of the first counting belt. The first guide edge and the second guide edge are arranged on both sides of the first counting belt respectively. The blocking block is arranged above the first counting belt. The gap between the blocking block and the first counting belt allows a single second packaging bag to pass through. The counting detector and the overlap detector are arranged above the third counting belt. The counting detector is used to count the number of second packaging bags passing through the third counting belt. The overlap detector is used to detect the abnormal situation of the overlapping area of at least two second packaging bags.

[0007] Further, the filling assembly is connected with the counting belt assembly to collect the second packaging bags with a predetermined number conveyed by the counting belt assembly, the filling assembly comprises a filling blocking hopper, a filling hopper, a filling translation cylinder, a filling translation plate, a filling connecting plate, a filling lifting cylinder, a filling switch plate cylinder, a pressing cylinder and a filling hopper pressing block, a first filling switch plate and a second filling switch plate capable of being opened and closed are arranged below the filling hopper, the first filling switch plate is engaged with the second filling switch plate through a filling switch gear, the filling switch plate cylinder is connected with the first filling switch plate, the filling switch plate cylinder drives the opening and closing of the first filling switch plate and the second filling switch plate, the second packaging bags conveyed from the third counting belt fall into the filling hopper under the blocking of the filling blocking hopper, when the number of the second packaging bags measured by the counting detector reaches the predetermined number, the filling translation cylinder drives the filling translation plate to move to the direction of the first packaging bag in the guide groove, thereby driving the filling connecting plate, the filling lifting cylinder and the filling hopper connected with the filling translation plate to move to the direction of the first packaging bag in the guide groove at the same time, when the filling hopper reaches above the first packaging bag, the filling lifting cylinder drives the filling connecting plate and the filling hopper fixed on the filling connecting plate to move downward, thereby the first filling switch plate and the second filling switch plate are inserted into the bag opening of the first packaging bag, the first bag opening cylinder and the second bag opening cylinder drive the first bag opening suction disc and the second bag opening suction disc to move away from each other to increase the distance, and the pressing cylinder drives the filling hopper pressing block to move, the filling hopper pressing block presses the second packaging bag in the filling hopper, a filling switch plate cylinder drives the first filling switch plate and the second filling switch plate to open at the same time to form a filling opening, and the second packaging bag falls into the first packaging bag through the filling opening.

[0008] Further, the pushing assembly comprises a pushing head assembly, a pushing translation cylinder and a pushing translation connecting plate connected with each other, the pushing head assembly comprises a pushing motor, a pushing screw rod, a pushing nut, a pushing lifting plate and a pushing head, the pushing translation cylinder drives the pushing translation connecting plate and the pushing head assembly fixed on the pushing translation connecting plate to move, so that the pushing head assembly moves above the filling hopper, the pushing motor rotates to drive the pushing screw rod to rotate, thereby the pushing nut cooperating with the pushing screw rod moves downward to drive the pushing lifting plate to move downward, the pushing head fixed below the pushing lifting plate is driven to move towards the filling opening direction, thereby pushing the second packaging bag in the filling hopper to fall into the first packaging bag.

[0009] Further, the packaging machine further comprises a dispensing assembly, the dispensing assembly comprises at least one dispensing hopper, a dispensing frame, a dispensing cylinder, at least one dispensing suction cup and a dispensing detector, the dispensing hopper is loaded with a plurality of additional materials, the dispensing frame is in communication with each dispensing hopper and is provided with a chute, the dispensing suction cup is the same as the number of the dispensing hopper and one-to-one correspondence, when the first packaging bag is sent out by the conveying belt to below the dispensing assembly, the dispensing cylinder drives the dispensing suction cup to move to the corresponding dispensing hopper to adsorb a preset additional material and then drives the dispensing suction cup to move to the direction of the chute in the opposite direction, so that the additional material slides along the chute and falls into the first packaging bag, the dispensing detector is arranged at the notch of the chute and is used for detecting whether the additional material correctly slides into the first packaging bag.

[0010] Further, the packaging machine further comprises two pressing assemblies, in the conveying direction of the conveying belt, the two pressing assemblies are respectively located adjacent to the upstream and downstream of the dispensing assembly, the pressing assembly comprises a bag lifting cylinder, a pair of opposite bag pushing cylinders and bag pushing plates connected with each other, a pressing height adjusting hand wheel and at least one pressing cylinder and a pressing head connected with each other, when the conveying belt sequentially conveys the first packaging bag below the two pressing assemblies, the bag lifting cylinder of the corresponding pressing assembly drives the pair of connected bag pushing cylinders and bag pushing plates to move downward, so that each bag pushing plate moves into the first packaging bag, and each bag pushing cylinder drives the bag pushing plate connected therewith to move away from each other, the pressing cylinder drives the pressing head to move into the first packaging bag, so as to press the mixture of the second packaging bag or the second packaging bag and the additional material in the first packaging bag, and the pressing height adjusting hand wheel is used for adjusting the height of the bag pushing plate and the pressing head to adapt to the first packaging bag of different heights.

[0011] Further, the sealing assembly comprises a first sealing assembly and a second sealing assembly arranged oppositely, a sealing height adjusting synchronous belt and a sealing height adjusting hand wheel, the first sealing assembly comprises a first sealing cylinder seat, a first sealing cylinder, a first sealing cutter and a first sealing height adjusting screw rod, the second sealing assembly comprises a second sealing cylinder seat, a second sealing cylinder, a second sealing cutter and a second sealing height adjusting screw rod, the first sealing cylinder fixed on the first sealing cylinder seat moves close to the second sealing cylinder fixed on the second sealing cylinder seat, so as to drive the first sealing cutter and the second sealing cutter to move close to each other and press tightly, the first sealing cutter and the second sealing cutter seal the first packaging bag located therebetween, the sealing height adjusting synchronous belt is sleeved on the first sealing height adjusting screw rod and the second sealing height adjusting screw rod, and the sealing height adjusting hand wheel is rotated to drive the first sealing height adjusting screw rod to rotate and synchronously drive the second sealing height adjusting screw rod to rotate through the sealing height adjusting synchronous belt.

[0012] Further, the packaging machine further comprises an exhaust assembly, the exhaust assembly comprises a first exhaust cylinder and a first exhaust rod and a second exhaust cylinder and a second exhaust rod connected respectively, when the first packaging bag is conveyed to the lower side of the sealing assembly by the conveying belt, the first exhaust cylinder and the second exhaust cylinder fixed on the first sealing cylinder seat and the second sealing cylinder seat respectively move towards each other to drive the first exhaust rod and the second exhaust rod to close, so as to compress the first packaging bag between the first exhaust rod and the second exhaust rod.

[0013] Further, the packaging machine further comprises: a first adjusting assembly connected with the bag storage groove to adjust the width of the bag storage groove; a second adjusting assembly connected with the guide groove to adjust the width of the guide groove; and a third adjusting assembly connected with the positioning assembly to adjust the height of the positioning assembly.

[0014] The packaging machine has the advantages that: by arranging the filling assembly and the pushing assembly, the predetermined number of the second packaging bags with relatively small size can be automatically filled into the second packaging bags with relatively large size without manual operation, the components and assemblies are compact in assembly structure and high in reliability in mutual cooperation, and the packaging machine has the advantages of saving labor, high packaging speed and high working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows, and other drawings can also be obtained by those skilled in the art without creative labor on the premise that these drawings are within the protection scope of the present application.

[0016] Figure 1 It is an overall assembly view of the packaging machine from the first axis side view angle;

[0017] Figure 2 It is an overall assembly view of the packaging machine from the second axis side view angle;

[0018] Figure 3 It is an overall assembly view of the packaging machine from the third axis side view angle;

[0019] Figure 4 It is a sectional view of the packaging machine in the side view direction;

[0020] Figure 5 It is a partial assembly view of the packaging machine in the top view direction;

[0021] Figure 6 It is a structure schematic view of the bag opening assembly of the packaging machine;

[0022] Figure 7 It is a structure schematic view of the bag bottom opening assembly of the packaging machine;

[0023] Figure 8 Fig. 2 is a schematic view of the counting belt assembly of the packaging machine of the present application;

[0024] Figure 9 Fig. 3 is a schematic view of the filling assembly of the packaging machine of the present application, from one axial side;

[0025] Figure 10 Fig. 4 is a schematic view of the filling assembly of the packaging machine of the present application, from another axial side;

[0026] Figure 11 Fig. 5 is a schematic view of a portion of the filling assembly of the packaging machine of the present application;

[0027] Figure 12 Fig. 6 is a schematic view of the pusher assembly of the packaging machine of the present application;

[0028] Figure 13 Fig. 7 is a schematic view of the pusher head assembly of the pusher assembly of the packaging machine of the present application;

[0029] Figure 14 Fig. 8 is a schematic view of the discharge assembly of the packaging machine of the present application;

[0030] Figure 15 Fig. 9 is a schematic view of the compression assembly of the packaging machine of the present application;

[0031] Figure 16 Fig. 10 is a schematic view of the sealing assembly and the pusher assembly of the packaging machine of the present application;

[0032] BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 1-Storage tank groove; 2-Transition groove; 3-Guide groove; 4-Taking bag assembly; 41-Taking bag cylinder; 42-Taking bag connecting plate; 43-Taking bag suction cup; 5-Bag opening assembly; 51-Bag opening assembly; 511-First bag opening cylinder; 512-First bag opening suction cup connecting plate; 513-Bag opening fixing plate; 514-First bag opening suction cup; 515-Second bag opening cylinder; 516-Second bag opening suction cup connecting plate; 517-Second bag opening suction cup; 52-Bag bottom opening assembly; 521-Blowing pipe translation cylinder; 522-Blowing pipe connecting plate; 523-Blowing pipe; 524-Bag bottom opening fixing plate; 6-Filling assembly; 61-Filling blocking hopper; 62-Filling hopper; 63-Filling translation cylinder; 64-Filling translation plate; 65-Filling connecting plate; 66-Filling lifting cylinder; 67-Pressing block cylinder; 68-Filling hopper pressing block; 69-First filling switch plate; 610-Second filling switch plate; 611-Filling switch gear; 612-Filling switch plate cylinder; 613-Filling fixing plate; 7-Pushing assembly; 71-Pushing head assembly; 711-Pushing motor; 712-Pushing screw rod; 713-Pushing nut; 714-Pushing lifting plate; 715-Pushing head; 72-Pushing translation cylinder; 73-Pushing translation connecting plate; 74-Pushing fixing plate; 8-Sending belt; 9-Sealing assembly; 91-First sealing cylinder seat; 92-First sealing cylinder; 93-First sealing cutter; 94-First sealing height adjusting screw rod; 95-Second sealing cylinder seat; 96-Second sealing cylinder; 97-Second sealing cutter; 98-Second sealing height adjusting screw rod; 99-Sealing height adjusting synchronous belt; 910-Sealing height adjusting hand wheel; 10-Counting belt assembly; 101-First counting belt; 102-Second counting belt; 103-Third counting belt; 104-Block; 105-Second counting belt; 106-Third counting belt; 107-Counting detector; 108-Overlap detector; 11-Discharging assembly; 111-Discharging hopper; 112-Discharging frame; 1121-Sliding groove; 113-Taking material cylinder; 114-Taking material suction cup; 115-Discharging detector; 116-Discharging lifting adjusting hand wheel; 12-Pressing assembly; 121-Bag shifting lifting cylinder; 122-Bag shifting cylinder; 123-Bag shifting plate; 124-Pressing height adjusting hand wheel; 125-Pressing cylinder; 126-Pressing head; 13-Exhaust assembly; 131-First exhaust cylinder; 132-First exhaust rod; 133-Second exhaust cylinder; 134-Second exhaust rod; 14-Pushing down assembly; 141-First pushing down cylinder; 142-First pushing down rod; 143-Second pushing down cylinder; 144-Second pushing down rod; 15-Storage hopper; 16-Elevator; 17-First adjusting assembly; 18-Second adjusting assembly; 19-Third adjusting assembly; 20-Positioning assembly; 201-Positioning cylinder; 202-Positioning piece; 203-Bag detector; 21-Rejection assembly; 211-Waste hopper; 212-Rejection cylinder; 213-Rejection plate; 22-Return belt;23 - Stent. DETAILED DESCRIPTION

[0034] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. It should be noted that, in this document, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or sequence between these entities or operations. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Moreover, the terms “include”, “contain” or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the elements limited by the statement “include” do not exclude the presence of other identical elements in the process, method, article or device that includes the elements. If there is no conflict, the various features in the embodiments and examples of the present application can be combined with each other, and all within the scope of protection of the present application.

[0035] Reference Figures 1 to 5, as one object of the present application, a packaging machine is provided, which comprises at least one packaging device, it is noted that the packaging device can be arranged on a working platform, and preferably, two or more packaging devices are arranged on the same working platform, in consideration of cost and packaging efficiency, the present application is described by taking two packaging devices as an example, the packaging device comprises: a bag storage groove 1 for storing a plurality of first packaging bags, a transition groove 2 which is connected with the bag outlet of the bag storage groove 1, a guide groove 3 which is connected with the transition groove 2 to receive the first packaging bags falling from the transition groove 2, a bag taking assembly 4 for taking out the first packaging bags in the bag storage groove 1 and placing them into the transition groove 2, a positioning assembly 20 for positioning the first packaging bags falling from the transition groove 2 into the guide groove 3 to prevent and allow further falling of the first packaging bags in sequence, an opening assembly 5 for opening the first packaging bags after positioning, a filling assembly 6 for supplying a plurality of second packaging bags each containing a packaged object into the inner cavity of the first packaging bag, a pushing assembly 7 for applying a pushing force to the second packaging bags in the filling assembly 6 to fall into the inner cavity of the first packaging bag, a conveying belt 8 which is located below and connected with the guide groove 3, and a sealing assembly 9 which is located downstream of the conveying belt 8 relative to the guide groove 3. The size of the above-mentioned second packaging bag is smaller than the size of the inner cavity of the first packaging bag, specifically, the second packaging bag can package food such as betel nuts, fish, fish tofu and meat slices as packaged objects, and the first packaging bag is equivalent to an outer packaging bag, so that a plurality of small packaged foods are packaged in the first packaging bag, thereby facilitating users to eat by weight while preserving the quality of the food. The sealing assembly 9 seals the first packaging bag falling from the guide groove 3 onto the conveying belt 8.The whole working process of the packing machine for packing the second packing bags into the first packing bag is described in detail as follows: firstly, the bag taking assembly 4 takes a first packing bag from the bag storage groove 1 and places it into the transition groove 2, then the positioning assembly 20 extends in the guide groove 3 to position the first packing bag that slides into the guide groove 3 from the transition groove 2 to prevent the further sliding of the first packing bag, then the bag opening assembly 5 separates the two side faces of the positioned first packing bag to open the bag, then the filling assembly 6 is used to supply a plurality of second packing bags each containing a packaged object into the inner cavity of the opened first packing bag, then the pushing assembly 7 applies a pushing force to the second packing bags in the filling assembly 6, so that the plurality of second packing bags are compacted in the inner cavity of the first packing bag to ensure that the first packing bag can contain a predetermined number of second packing bags, it should be noted that if the inner cavity of the first packing bag is large enough, each second packing bag can directly fall into the first packing bag from the filling assembly 6 without the pushing assembly 7 to apply a pushing force, but this will make the first packing bag much larger than the actual need, which not only wastes materials but also brings adverse effects on subsequent transportation and user use, therefore, the application has a beneficial technical effect that the plurality of second packing bags are squeezed into the inner cavity of the first packing bag by the pushing assembly 7 under the premise that the first packing bag has a suitable size to reduce unnecessary material consumption, so that as many second packing bags as possible can be packed. After the first packing bag contains a predetermined number of second packing bags, the positioning assembly 20 shortens in the guide groove 3 to allow the further sliding of the first packing bag to the delivery belt 8 located below and opposite to the guide groove 3. Finally, the sealing assembly 9 seals the first packing bag to seal each second packing bag in the inner cavity of the first packing bag.

[0036] Therefore, the application designs the above-described packing machine, which can automatically pack a predetermined number of second packing bags with relatively small size into a first packing bag with relatively large size and seal without using manual labor, thereby having the advantages of saving labor, fast packaging speed and high working efficiency.

[0037] By reference to Figure 6 and Figure 7, specifically, in an embodiment, the bag opening assembly 5 comprises a bag mouth opening assembly 51 and a bag bottom opening assembly 52, the bag mouth opening assembly 51 comprises a first bag mouth opening cylinder 511 and a first bag opening suction disc connecting plate 512 connected together and a second bag mouth opening cylinder 515 and a second bag opening suction disc connecting plate 516 connected together, a plurality of pairs of first bag opening suction discs 514 and second bag opening suction discs 517 are respectively arranged on the first bag opening suction disc connecting plate 512 and the second bag opening suction disc connecting plate 516, the first bag mouth opening cylinder 511 and the second bag mouth opening cylinder 515 respectively drive the first bag opening suction disc connecting plate 512 and the second bag opening suction disc connecting plate 516 to move between two positions of approaching and moving away from each other, at the position of approaching each other, each pair of first bag opening suction discs 514 and second bag opening suction discs 517 are close to each other to adsorb two opposite outer sides of the first packaging bag located therebetween, and then move from the position of approaching each other to the position of moving away from each other, each pair of first bag opening suction discs 514 and second bag opening suction discs 517 are away from each other to adsorb two opposite outer sides away from each other until the bag mouth is completely separated and has the maximum separation distance, and the filling assembly 6 subsequently fills the first packaging bag through the bag mouth, that is, as shown in Figure 6 the two bag mouth opening cylinders respectively make the two bag opening suction discs adsorb the two opposite outer sides of the first packaging bag and make the distance between the two opposite outer sides large enough to facilitate the filling of the second packaging bag by the subsequent filling assembly 6. The bag bottom opening assembly 52 comprises a blowing pipe translation cylinder 521 and a blowing pipe connecting plate 522 connected together, a plurality of blowing pipes 523 are arranged on the blowing pipe connecting plate 522, and under the condition that the two opposite outer sides are at the maximum separation distance, the blowing pipe translation cylinder 521 drives the blowing pipe connecting plate 522 to move the blowing pipe 523 above the bag mouth of the first packaging bag, and the blowing pipe 523 blows air into the interior of the first packaging bag through the bag mouth to blow open the bag bottom of the first packaging bag. Therefore, by arranging the bag opening assembly 5 to have the above-mentioned bag mouth opening assembly 51 and bag bottom opening assembly 52, the bag mouth and bag bottom of the first packaging bag can be automatically and reliably opened, thereby facilitating the smooth loading of the second packaging bag into the first packaging bag.

[0038] In combination with reference Figure 8In particular, in one embodiment, the packaging machine further comprises a counting belt assembly 10, which comprises a first counting belt, a second counting belt 105 and a third counting belt 106 arranged in sequence and adjacent to each other, and sequentially feeds the second packaging bags into the filling assembly 6, for example, the filling hopper 62 (to be described in detail below), and the feeding speed of the second counting belt 105 is greater than that of the first counting belt 101. By accelerating the second counting belt 105, the spacing between the newly received second packaging bags on the second counting belt 105 and the second packaging bags on the first counting belt 101 can be pulled apart. The first guide edge 102 and the second guide edge 103 are respectively arranged on both sides of the first counting belt 101, and the blocking block 104 is arranged above the first counting belt 101. The gap between the blocking block 104 and the first counting belt 101 allows a single second packaging bag to pass through. In this way, by adjusting the gap between the blocking block 104 and the first counting belt 101 using the blocking block 104, only a single second packaging bag is allowed to pass through the gap and be fed onto the second counting belt 105. The packaging machine can further be provided with a return belt 22, and the second packaging bags blocked by the blocking block 104 will fall onto the return belt 22. The second packaging bags collected from the return belt 22 are placed into the storage hopper 15 again to wait to be packaged into the first packaging bags. The counting detector 107 and the overlap detector 108 are arranged above the third counting belt 106. The counting detector 107 is used to count the number of second packaging bags passing through the third counting belt 106, and the overlap detector 108 is used to detect the abnormal situation of the existence of an overlapping area of at least two second packaging bags. Since two second packaging bags are overlapped in the vertical direction or two second packaging bags are connected head to tail without being separated, both belong to the abnormal situation of the existence of an overlapping area. Therefore, by detecting the abnormal situation using the overlap detector 108, the corresponding first packaging bag can be rejected in the subsequent process.

[0039] By way of reference Figures 9 to 11, specifically, in an embodiment, the filling assembly 6 is connected with the counting belt assembly 10 to collect the second packaging bags with a predetermined number conveyed by the counting belt assembly 10, the filling assembly 6 comprises a filling blocking hopper 61, a filling hopper 62, a filling translation cylinder 63, a filling translation plate 64, a filling connecting plate 65, a filling lifting cylinder 66, a filling switch plate cylinder 612, a pressing cylinder 67 and a filling hopper pressing block 68. In this embodiment, the filling hopper 62 and the counting belt assembly 10 are both provided with four, so that the filling speed of the second packaging bags filled into the first packaging bags can be accelerated or / and four different types of second packaging bags can be filled into the first packaging bags respectively. Below the filling hopper 62, a first filling switch plate 69 and a second filling switch plate 610 are provided, the first filling switch plate 69 is engaged with the second filling switch plate 610 through a filling switch gear 611, the filling switch plate cylinder 612 is connected with the first filling switch plate 69, the filling switch plate cylinder 612 can drive the opening and closing of the first filling switch plate 69 and the second filling switch plate 610, the second packaging bags conveyed from the third counting belt 106 fall into the filling hopper 62 under the blocking of the filling blocking hopper 61, when the number of the second packaging bags measured by the counting detector 107 reaches the predetermined number, the filling translation cylinder 63 drives the filling translation plate 64 to move to the direction of the first packaging bags in the guide channel 3, thereby driving the filling connecting plate 65, the filling lifting cylinder 66 and the filling hopper 62 connected with the filling translation plate 64 to move to the direction of the first packaging bags in the guide channel 3 at the same time, when the filling hopper 62 reaches above the first packaging bags, the filling lifting cylinder 66 drives the filling connecting plate 65 and the filling hopper 62 fixed on the filling connecting plate 65 to move downwards, thereby the first filling switch plate 69 and the second filling switch plate 610 are inserted into the bag opening of the first packaging bags, and then each pair of opposite first bag opening suction cups 514 and second bag opening suction cups 517 release the first packaging bags, at the same time, the first bag opening cylinder 511 and the second bag opening cylinder 515 drive each pair of opposite first bag opening suction cups 514 and second bag opening suction cups 517 to move away from each other to increase the distance, and the pressing cylinder 67 drives the filling hopper pressing block 68 to move, the filling hopper pressing block 68 presses the second packaging bags in the filling hopper 62, the filling switch plate cylinder 612 drives the first filling switch plate 69 to open at the same time, thereby the second filling switch plate 610 is also opened synchronously to form a filling opening, specifically, the filling switch plate cylinder 612 is drivingly connected with the first filling switch plate 69, so that the filling switch plate cylinder 612 extends to drive the first filling switch plate 69 to open, and since the first filling switch plate 69 and the second filling switch plate 610 are engaged through the filling switch gear 611, the second filling switch plate 610 is also opened synchronously when the first filling switch plate is opened, thereby each second packaging bag is filled into the first packaging bag through the filling opening.In this way, the filling assembly 6 can compact the second packaging bags with the accurate predetermined number conveyed by the counting belt assembly 10 in the filling hopper 62, so as to ensure that each second packaging bag can reliably fall into the first packaging bag.

[0040] With reference to Figure 12 and Figure 13 Specifically, in an embodiment, the pushing assembly 7 comprises a pushing head assembly 71 and an associated pushing translation cylinder 72 and pushing translation connecting plate 73, the pushing head assembly 71 comprises a pushing motor 711, a pushing screw rod 712, a pushing nut 713, a pushing lifting plate 714 and a pushing head 715, the pushing translation cylinder 72 drives the pushing translation connecting plate 73 and the pushing head assembly 71 fixed on the pushing translation connecting plate 73 to move, so that the pushing head assembly 71 moves above the filling hopper 62, it can be understood that, preferably, during the process that the counting belt assembly 10 conveys each second packaging bag to the filling hopper 62, the pushing head assembly 71 is driven by the pushing translation connecting plate 73 to be located above the filling hopper 62, so as to facilitate each second packaging bag to fall into the filling hopper 62 without obstacles, and when the predetermined number of second packaging bags all fall into the filling hopper 62, the pushing head assembly 71 is driven by the pushing translation connecting plate 73 to be located above the filling hopper 62, so that on the basis that the first filling switch plate 69 and the second filling switch plate 610 are opened, the pushing head 715 can apply a pushing pressure to the second packaging bag to fall into the first packaging bag, so as to make each second packaging bag in the filling hopper 62 fall into the first packaging bag quickly and without omission, the pushing motor 711 rotates to drive the pushing screw rod 712 to rotate, so that the pushing nut 713 cooperating with the pushing screw rod 712 moves downward and in turn drives the pushing lifting plate 714 to move downward, the pushing head 715 fixed below the pushing lifting plate 714 is driven to move towards the filling port direction, so as to push the second packaging bag in the filling hopper 62 to fall into the first packaging bag. Therefore, by arranging the pushing assembly 7, the pushing head assembly 71 can be driven by the pushing translation connecting plate 73 to move horizontally relative to the filling hopper 62 in the horizontal direction, and the pushing head 715 can be driven by the pushing lifting plate 714 to move in and out relative to the filling hopper 62 in the vertical direction, so as to ensure that each second packaging bag is accurately and efficiently pushed and falls into the first packaging bag.

[0041] With reference to Figure 14, specifically, in an embodiment, the feeding assembly 11 comprises at least one feeding hopper 111, a feeding frame 112, a feeding cylinder 113, at least one feeding suction cup 114, a feeding frame chute 1121 and a feeding detector 115, the feeding hopper 111 is loaded with a plurality of additional materials, the feeding frame 112 is in communication with each feeding hopper 111 and is provided with the feeding frame chute 1121, when the first packaging bag is sent out of the belt 8 to below the feeding assembly 11, the feeding cylinder 113 drives the feeding suction cup 114 to move to the corresponding feeding hopper 111 to adsorb a preset additional material, and then drives the feeding suction cup 114 to move in the opposite direction to the feeding frame chute 1121, so that the additional material slides along the feeding frame chute 1121 and falls into the first packaging bag, in this way, for some cases, it is necessary to put additional materials such as promotional coupons, production certificates, points or blind box type collection cards into the first packaging bag, and the packaging machine of the present application can automatically realize the loading of additional materials into the first packaging bag by setting the feeding assembly 11, in the embodiment, the additional materials are coupons and have 5 winning levels, therefore, the feeding hopper 111 of each feeding assembly 11 is provided with 5 and the additional materials contained in each feeding hopper 111 are different from each other, and the number of the feeding suction cup 114 is also correspondingly provided with 5, in addition, the feeding detector 115 is arranged at the slot opening of the feeding frame chute 1121 and is used to detect whether the additional material correctly slides into the first packaging bag, that is, the feeding detector 115 can detect whether the additional material slides and the correctness of the additional material sliding, for example, according to the number of winning of each winning level. Therefore, the feeding detector 115 detects that the additional material is accurate if it is the correct winning level, and is not preset if it is not the correct winning level. In addition, the feeding assembly 11 can also be provided with a feeding lifting adjusting hand wheel 116 to adjust the height between the slot opening of the feeding frame chute 1121 and the inner cavity of the first packaging bag.

[0042] By way of reference Figure 3 and Figure 15, specifically, in an embodiment, the packaging machine further comprises two pressing assemblies 12, which are respectively located adjacent to the upstream and downstream of the discharging assembly 11 in the conveying direction of the conveying belt 8, the pressing assembly 12 comprises a bag pushing lifting cylinder 121, a pair of connected and opposite bag pushing cylinders 122 and bag pushing plates 123, a pressing height adjusting hand wheel 124, and at least one connected pressing cylinder 125 and pressing head 126, when the conveying belt 8 sequentially conveys the first packaging bag under the two pressing assemblies 12, the bag pushing lifting cylinder 121 of the corresponding pressing assembly 12 drives the pair of connected bag pushing cylinders 122 and bag pushing plates 123 to move downward so as to move each bag pushing plate 123 into the first packaging bag, and each bag pushing cylinder 122 drives the bag pushing plate 123 connected thereto to move away from each other, the pressing cylinder 125 drives the pressing head 126 to move into the first packaging bag so as to press the second packaging bag or the mixture of the second packaging bag and the additional material in the first packaging bag, specifically, for the pressing assembly 12 located upstream of the discharging assembly 11, the pressing head 126 thereof presses each second packaging bag, and for the pressing assembly 12 located downstream of the discharging assembly 11, the pressing head 126 thereof presses each second packaging bag and the additional material in the first packaging bag, and the pressing height adjusting hand wheel 124 is used to adjust the height of the bag pushing plate 123 and the pressing head 126 to adapt to the first packaging bag of different heights. In this way, by arranging the two pressing assemblies 12, it is convenient for the additional material to fall into the first packaging bag, and it is also convenient to ensure that there is no second packaging bag or additional material to hinder the subsequent sealing of the first packaging bag.

[0043] By way of reference Figure 3 and Figure 16, specifically, in an embodiment, the sealing assembly 9 comprises oppositely arranged first and second sealing assemblies, a sealing height adjusting synchronous belt 99 and a sealing height adjusting hand wheel 910, the first sealing assembly comprises a first sealing cylinder seat 91, a first sealing cylinder 92, a first sealing cutter 93 and a first sealing height adjusting screw 94, the second sealing assembly comprises a second sealing cylinder seat 95, a second sealing cylinder 96, a second sealing cutter 97 and a second sealing height adjusting screw 98, the first sealing cylinder 92 fixed on the first sealing cylinder seat 91 moves close to the second sealing cylinder 96 fixed on the second sealing cylinder seat 95 to drive the first sealing cutter 93 and the second sealing cutter 97 to press tightly and seal the first packaging bag therebetween, the sealing height adjusting synchronous belt 99 is sleeved on the first sealing height adjusting screw 94 and the second sealing height adjusting screw 98, and the sealing height adjusting hand wheel 910 is rotated to drive the first sealing height adjusting screw 94 to rotate and synchronously drive the second sealing height adjusting screw 98 to rotate through the sealing height adjusting synchronous belt 99. In addition, preferably, the first sealing height adjusting screw 94 and the second sealing height adjusting screw 98 are respectively connected with a pair of parallel support plates at both ends, and a pair of guide rails connected with the pair of support plates at both ends are arranged on both sides of the two sealing height adjusting screws. In this way, the packaging machine of the present application is provided with a sealing assembly 9 behind the pressing assembly 12 relative to the conveying direction of the conveying belt 8, and the second packaging bag in the first packaging bag and the additional material are pressed tightly to seal the first packaging bag with high quality.

[0044] Preferably, in an embodiment, the packaging machine further comprises an exhaust assembly 13, the exhaust assembly 13 comprises first and second exhaust cylinders 131 and 133 and first and second exhaust rods 132 and 134 connected respectively, when the conveying belt 8 conveys the first packaging bag to below the sealing assembly 9, the first and second exhaust cylinders 131 and 133 fixed on the first and second sealing cylinder seats 91 and 95 respectively move towards each other to drive the first and second exhaust rods 132 and 134 to press tightly the first packaging bag therebetween, so as to exhaust and flatten the bag opening of the first packaging bag.

[0045] In combination with reference Figure 1 and Figure 5, preferably, in an embodiment, the packaging machine further comprises a first adjusting assembly 17 connected with the storage bag slot 1 to adjust the width of the storage bag slot 1, a second adjusting assembly 18 connected with the guide slot 3 to adjust the width of the guide slot 3, and a third adjusting assembly 19 connected with the positioning assembly 20 to adjust the height of the positioning assembly 20, each adjusting assembly can adopt an adjusting structure comprising a matched adjusting hand wheel and adjusting rod to realize the corresponding adjusting function and can be obtained by referring to the related technical means in the art, which will not be described here. Therefore, the packaging machine of the present application can not only adapt to the first packaging bags with different widths by setting the first adjusting assembly 17 and the second adjusting assembly 18, but also adapt to the first packaging bags with different heights by setting the third adjusting assembly 19, so that the packaging machine has the advantage of being compatible with a plurality of first packaging bags with different sizes.

[0046] Additionally, in an embodiment, the first sealing cylinder seat 91 and the second sealing cylinder seat 95 are respectively provided with a nut (not shown) matched with the first sealing height adjusting screw rod 94 and the second sealing height adjusting screw rod 98, so that the first sealing cutter 93 and the second sealing cutter 97 can move up and down synchronously with the up and down movement of the first sealing cylinder seat 91 and the second sealing cylinder seat 95, respectively, so that the first sealing cutter 93 and the second sealing cutter 97 are aligned with each other and adapt to the first packaging bags with different heights.

[0047] For reference Figure 16 Additionally, in an embodiment, the packaging machine further comprises a pushing down assembly 14, which is located downstream of the sealing assembly 9 in the conveying direction of the feeding belt 8, the pushing down assembly 14 comprises a first pushing down cylinder 141 and a first pushing down rod 142 and a second pushing down cylinder 143 and a second pushing down rod 144 connected respectively, and the first pushing down rod 142 is driven by the first pushing down cylinder 141 or the second pushing down rod 144 is driven by the second pushing down cylinder 143 to selectively apply a pushing down force to the first packaging bags lying on the feeding belt 8, so that some first packaging bags can be pushed to the same side as required, which facilitates identification and subsequent sampling inspection.

[0048] For reference Figure 1 and Figure 2 Additionally, in an embodiment, the packaging machine further comprises a storage hopper 15 for storing a plurality of the above-mentioned second packaging bags and a lifting machine 16 for extracting the second packaging bags from the storage hopper 15, the lifting machine 16 is used to lift the second packaging bags in the storage hopper 15 to the counting belt assembly 10 connected with the lifting machine 16, so that the second packaging bags can be automatically and efficiently supplied to the counting belt assembly 10.

[0049] For reference Figure 4, specifically, in an embodiment, the bag taking assembly 4 comprises a bag taking cylinder 41 and a bag taking connecting plate 42 connected to each other, and a bag taking suction cup 43 arranged on the bag taking connecting plate 42, the bag taking cylinder 41 drives the bag taking connecting plate 42 to reciprocate towards the bag storage groove 1, so that the bag taking suction cup 43 can adsorb the first packaging bag, and then the bag taking cylinder 41 drives the bag taking suction cup 43 with the adsorbed first packaging bag to move into the transition groove 2. Thus, the bag taking assembly 4 has the advantages of high automation and reliability.

[0050] With reference to Figure 3 , Figure 6 , Figure 7 and Figure 12 , additionally, in an embodiment, the above-mentioned work platform comprises a support 23, the bag opening assembly 51 further comprises a bag opening fixing plate 513, the bag bottom opening assembly 52 further comprises a bag bottom opening fixing plate 524, the filling assembly 6 further comprises a filling fixing plate 613, and the pushing assembly 7 further comprises a pushing fixing plate 74, the bag opening fixing plate 513, the bag bottom opening fixing plate 524, the filling fixing plate 613 and the pushing fixing plate 74 are fixedly connected to the support 23 respectively, so that the overall structure of the packaging machine is compact and the work is stable.

[0051] With reference to Figure 4 and Figure 5 , specifically, in an embodiment, the positioning assembly 20 comprises a positioning cylinder 201 and a positioning member 202 connected to each other, the positioning cylinder 201 drives the positioning member 202 to move into the guide groove 3 to support and position the first packaging bag to receive the filling of the second packaging bag, and the positioning cylinder 201 drives the positioning member 202 to move away from the guide groove 3 to release the first packaging bag that has received the filling of the second packaging bag to fall onto the conveying belt 8. In this way, the positioning assembly 20 ensures that the first packaging bag receives the filling work at the accurate position. Additionally preferably, the positioning assembly 20 is further provided with a bag detector 203 above the positioning member 202, so as to accurately detect that the first packaging bag is accurately positioned in the guide groove 3 to receive the subsequent filling work of the filling assembly 6.

[0052] With reference to Figure 15 , additionally, in an embodiment, a rejection assembly 21 is further arranged in front of the sealing assembly 9, and the rejection assembly 21 can be integrated with a pressing assembly 12 arranged in front of the sealing assembly 9, the rejection assembly 21 comprises a waste hopper 211, a rejection cylinder 212 and a rejection plate 213 connected to each other, when the above-mentioned overlap detector 108 detects that there is an abnormal situation, the rejection cylinder 212 drives the rejection plate 213 to push the first packaging bag to move into the waste hopper 211 from the conveying belt 8. In this way, it is effectively prevented that the unqualified first packaging bag is mistakenly taken as a qualified finished product, so as to improve the finished product yield of the packaging machine.

[0053] It should be noted that the embodiments of the present application all adopt two packaging devices, and correspondingly, the feeding belt 8 travels two stations or the interval of two first packaging bags each time, so the pressing assembly 12, the discharging assembly 11 and the sealing assembly 9 are correspondingly adapted to be arranged in parallel in two groups, so as to balance the cost and the packaging efficiency.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A packaging machine, characterized in that, Includes at least one packaging device, said packaging device comprising: Storage troughs for storing multiple first-package bags; The transition groove connects with the bag outlet of the storage bag groove; A guide channel is connected to the transition channel to receive the first packaging bag that slides down from the transition channel; A bag-removing assembly is used to remove the first packaging bag from the storage tank and place it into the transition tank; A positioning component is used to position the first packaging bag that slides from the transition groove into the guide groove to sequentially prevent and allow the first packaging bag to slide further. A bag opening assembly for opening the first packaged bag after it has been positioned; A filling assembly is used to supply multiple second packaging bags, each containing the packaged item, into the inner cavity of a first packaging bag. The size of the second packaging bags is smaller than the size of the inner cavity of the first packaging bag. The filling assembly includes a filling baffle hopper, a filling hopper, a filling translation cylinder, a filling translation plate, a filling connecting plate, a filling lifting cylinder, a filling switch plate cylinder, a pressing block cylinder, and a filling hopper pressing block. A feeding assembly is used to apply a pushing force to the second packaging bag in the filling assembly, which falls into the inner cavity of the first packaging bag; The delivery belt is positioned below and opposite the guide groove; A sealing assembly is located downstream of the feed belt relative to the guide groove and seals the first packaging bag that falls from the guide groove onto the feed belt.

2. The packaging machine according to claim 1, characterized in that, The bag opening assembly includes a bag opening assembly and a bag bottom opening assembly. The bag opening assembly includes a connected first bag opening cylinder and a first bag opening suction cup connecting plate, as well as a connected second bag opening cylinder and a second bag opening suction cup connecting plate. Multiple pairs of opposing first and second bag opening suction cups are respectively provided on the first and second bag opening suction cup connecting plates. The first and second bag opening cylinders drive the first and second bag opening suction cup connecting plates to move between two positions of near and far from each other. At the position of near proximity, each pair of first and second bag opening suction cups moves closer together to attract the two opposite sides of the first packaging bag located therebetween. The first and second bag-opening suction cups move from a position close to each other to a position far apart, so that the two opposite outer sides are attracted to each other until they are completely separated and the bag opening with the maximum separation distance is obtained. The filling component then fills the first packaging bag through the bag opening. The bag bottom opening component includes a connected air pipe translation cylinder and an air pipe connecting plate. Multiple air pipes are provided on the air pipe connecting plate. When the two opposite outer sides are at the maximum separation distance, the air pipe translation cylinder drives the air pipe connecting plate to move the air pipe to above the bag opening of the first packaging bag. The air pipe blows air into the inside of the first packaging bag through the bag opening, thereby blowing open the bottom of the first packaging bag.

3. The packaging machine according to claim 2, characterized in that, The packaging machine further includes a counting belt assembly, which comprises a first counting belt, a second counting belt, and a third counting belt connected sequentially and transporting second packaging bags to the filling assembly in sequence. The conveying speed of the second counting belt is greater than that of the first counting belt. A first guide edge and a second guide edge are respectively provided on both sides of the first counting belt. A blocking block is provided above the first counting belt, and the gap formed between the blocking block and the first counting belt allows a single second packaging bag to pass through. A counting detector and an overlap detector are provided above the third counting belt. The counting detector is used to count the number of second packaging bags passing on the third counting belt, and the overlap detector is used to detect abnormal situations where at least two second packaging bags have overlapping areas.

4. The packaging machine according to claim 3, characterized in that, The filling assembly docks with the counting belt assembly to collect a predetermined number of second packaging bags conveyed by the counting belt assembly. Below the filling hopper are a first and a second filling switch plate that can be opened and closed. The first and second filling switch plates are meshed by a filling switch gear. A filling switch plate cylinder is connected to the first filling switch plate, and the filling switch plate cylinder drives the opening and closing of the first and second filling switch plates. The second packaging bags conveyed from the third counting belt fall into the filling hopper under the obstruction of the filling deflector. After the number of second packaging bags measured by the counting detector reaches the predetermined number, the filling translation cylinder drives the filling translation plate to move towards the first packaging bags in the guide groove, thereby driving the filling assembly connected to the filling translation plate. The connecting plate, the filling lifting cylinder, and the filling hopper also move simultaneously toward the first packaging bag in the guide groove. When the filling hopper reaches above the first packaging bag, the filling lifting cylinder drives the filling connecting plate and the filling hopper fixed on the filling connecting plate to move downward, so that the first filling switch plate and the second filling switch plate are inserted into the bag opening of the first packaging bag. The first bag opening opening cylinder and the second bag opening opening cylinder drive the first bag opening suction cup and the second bag opening suction cup to move away from each other to increase the distance. The pressing block cylinder pushes the filling hopper pressing block to move. The filling hopper pressing block presses the second packaging bag in the filling hopper. The filling switch plate cylinder drives the first filling switch plate and the second filling switch plate to open simultaneously to form a filling port. The second packaging bag falls into the first packaging bag through the filling port.

5. The packaging machine according to claim 4, characterized in that, The feeding assembly includes a feeding head assembly and a connected feeding translation cylinder and feeding translation connecting plate. The feeding head assembly includes a feeding motor, a feeding screw, a feeding nut, a feeding lifting plate, and a feeding head. The feeding translation cylinder drives the feeding translation connecting plate and the feeding head assembly fixed on the feeding translation connecting plate to move, so that the feeding head assembly moves to the top of the filling hopper. The feeding motor rotates to drive the feeding screw to rotate, thereby the feeding nut cooperating with the feeding screw moves downward and drives the feeding lifting plate to move downward. The feeding head fixed below the feeding lifting plate is driven to press against the filling port and move towards the filling port, thereby pushing the second packaging bag in the filling hopper into the first packaging bag.

6. The packaging machine according to claim 1, characterized in that, The packaging machine also includes a feeding assembly, which includes at least one feeding hopper, a feeding rack, a feeding cylinder, at least one feeding suction cup, and a feeding detector. The feeding hopper is loaded with multiple supplementary materials. The feeding rack is connected to each of the feeding hoppers and is provided with a chute. The number of feeding suction cups is the same as the number of feeding hoppers and they correspond one-to-one. When the first packaging bag is conveyed to the bottom of the feeding assembly by the delivery belt, the feeding cylinder drives the feeding suction cup to move towards the corresponding feeding hopper to adsorb a preset supplementary material, and then drives the feeding suction cup to move in the opposite direction towards the chute, so that the supplementary material slides down the chute into the first packaging bag. The feeding detector is located at the opening of the chute and is used to detect whether the supplementary material has correctly slid into the first packaging bag.

7. The packaging machine according to claim 6, characterized in that, The packaging machine also includes two pressing assemblies. In the conveying direction of the delivery belt, the two pressing assemblies are located adjacent to each other upstream and downstream of the unloading assembly. Each pressing assembly includes a bag-lifting cylinder, a pair of connected and opposite bag-lifting cylinders and bag-lifting plates, a pressing height adjusting handwheel, and at least one connected pressing cylinder and pressing head. When the delivery belt sequentially conveys the first packaging bag below the two pressing assemblies, the bag-lifting cylinder corresponding to the pressing assembly drives the pair of connected bag-lifting cylinders and bag-lifting plates to move downward, thereby moving each bag-lifting plate into the first packaging bag. Each bag-lifting cylinder drives the bag-lifting plates connected to it to move away from each other. The pressing cylinder drives the pressing head to move into the first packaging bag, thereby pressing the second packaging bag or a mixture of the second packaging bag and additional material inside the first packaging bag. The pressing height adjusting handwheel is used to adjust the height of the bag-lifting plates and the pressing head to adapt to first packaging bags of different heights.

8. The packaging machine according to claim 1, characterized in that, The sealing assembly includes a first sealing assembly and a second sealing assembly disposed opposite to each other, a sealing height adjusting timing belt, and a sealing height adjusting handwheel. The first sealing assembly includes a first sealing cylinder seat, a first sealing cylinder, a first sealing knife, and a first sealing height adjusting screw. The second sealing assembly includes a second sealing cylinder seat, a second sealing cylinder, a second sealing knife, and a second sealing height adjusting screw. The first sealing cylinder fixed on the first sealing cylinder seat and the second sealing cylinder fixed on the second sealing cylinder seat move relatively close to each other, thereby driving the first sealing knife and the second sealing knife to move closer and press together. The first sealing knife and the second sealing knife seal the first packaging bag located therebetween. The sealing height adjusting timing belt is fitted around the first sealing height adjusting screw and the second sealing height adjusting screw. The sealing height adjusting handwheel is rotated, thereby driving the first sealing height adjusting screw to rotate and synchronously driving the second sealing height adjusting screw to rotate through the sealing height adjusting timing belt.

9. The packaging machine according to claim 8, characterized in that, The packaging machine also includes an exhaust assembly, which includes a first exhaust cylinder and a first exhaust rod, as well as a second exhaust cylinder and a second exhaust rod, which are connected to each other. When the delivery belt transports the first packaging bag to the bottom of the sealing assembly, the first exhaust cylinder and the second exhaust cylinder, which are fixed on the first sealing cylinder seat and the second sealing cylinder seat respectively, move towards each other, thereby driving the first exhaust rod and the second exhaust rod to move closer together, thereby pressing the first packaging bag located between the first exhaust rod and the second exhaust rod.

10. The packaging machine according to claim 1, characterized in that, The packaging machine also includes: A first adjustment component is connected to the storage bag slot to adjust the width of the storage bag slot; A second adjustment component is connected to the guide groove to adjust the width of the guide groove; A third adjustment component is connected to the positioning component to adjust the height of the positioning component.

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