An automatic material packaging system

Abstract

The present invention relates to the technical field of packaging, and more particularly to an automatic material packaging system. The system comprises a support frame and a material supply mechanism fixed to the support frame for supplying materials to be packaged; a packaging bag supply mechanism for supplying packaging bags; a bag transport mechanism for moving packaging bags between different workstations; a material transfer mechanism for transferring materials dropped from the material supply mechanism and pushing them into packaging bags; a bag opening and filling mechanism for opening the packaging bags and placing materials therein; a shaping mechanism for shaping the opening of the packaging bags in preparation for sealing; a sealing mechanism for sealing the packaging bags; and a finished product output mechanism for outputting the finished products to the next process. The advantage of this invention is that the configuration of each mechanism provides a complete processing system for material packaging.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging, and in particular to an automatic material packaging system. Background Art

[0002] Currently, nut packaging is entirely manual or semi-manual, a labor-intensive process that compromises safety, hygiene, and accuracy, resulting in high rework rates and significant secondary waste. Specifically, these manual or semi-manual operations inflict high labor intensity, leading to fatigue, negative emotions, and a high risk of errors. Furthermore, manual handling of consumables, the use of point-and-shoot auxiliary equipment, and the manual bagging, sealing, boxing, rework, and even transportation between workstations all occur within the same space, creating congestion, low overall efficiency, and limited packaging accuracy. Summary of the Invention

[0003] In order to provide structural support for automatic material packaging, the present invention provides an automatic material packaging system. The present invention adopts the following technical solutions:

[0004] An automatic material packaging system includes a support frame and a

[0005] Material supply organization, which supplies materials to be packaged;

[0006] A packaging bag supply mechanism, used for supplying packaging bags;

[0007] Bag transport mechanism, moves packaging bags to different workstations;

[0008] The material transfer and pushing mechanism is used to transfer the materials dropped from the material supply mechanism and push the materials into the packaging bag;

[0009] Bag opening and filling mechanism, used to open the packaging bag and put the material in;

[0010] Shaping mechanism, shaping the mouth of the packaging bag to prepare for sealing;

[0011] Sealing mechanism, used for sealing the packaging bag;

[0012] Finished product output mechanism is used to output finished products to the next process.

[0013] The advantages of the present invention are:

[0014] (1) The setting of each mechanism provides a complete processing system for the packaging of materials.

[0015] (2) The setting of the partition room places each packaging bag in the appropriate position, which is convenient for the subsequent operation of the packaging bag.

[0016] (3) In the present invention, the material is first located on the material temporary storage platform, and the scraper plate scrapes the material onto the discharge plate. When the second detection component detects that there is no material in the material buffer bin, the discharge plate is moved to make the material fall into the material buffer bin, and then the material is pushed out of the material buffer bin by the first pushing unit. This structure can provide structural support for the material to enter the next process in an orderly manner.

[0017] (4) The first material shaping unit shapes the material in the material buffer to facilitate the material to enter the packaging bag better.

[0018] (5) The bag bin is used to store packaging bags. The first bag suction unit sucks out the packaging bags to the bag transport mechanism, thereby providing hardware support for self-service packaging bags.

[0019] (6) The protrusion can prevent the formation of a vacuum area on the contact surface between the material and the pusher when the push rod retreats, causing the material to be adsorbed on the pusher. After the protrusion pushes, the top of the air-containing flexible packaging bag is folded back into the bag, making it less likely to rebound. When the material is a flexible packaging bag, the protrusion pushes the flexible packaging bag and forms a concave deformation on the flexible packaging bag. After the push rod retreats, the flexible packaging bag will effectively maintain the pushed size, thereby facilitating the subsequent bag opening shaping.

[0020] (7) The present invention sucks the packaging bag open through the second suction cup unit, and then puts the material into the packaging bag through the bag support and discharge unit, providing mechanical support for automatic bag opening and discharge.

[0021] (8) The horizontal shaping drive floating setting in the present invention can automatically adjust the entry depth according to the resistance applied on both sides of the packaging bag when the two horizontal shaping plates move towards each other. It has an automatic correction function for errors in the size of the packaging bag, errors in the shape of the packaging bag after filling, and errors in the position between the partitions, thereby ensuring the best shaping effect.

[0022] (9) The mechanism realizes sealing through the sealing unit and fixes the packaging bag through the bag pressing unit, thereby improving the sealing yield rate.

[0023] (10) The present application uses the second conveyor belt for transmission. Since the second conveyor belt is inclined, by controlling the discharge drive mechanism, when the discharge drive mechanism contracts, the material at the corresponding position of the second conveyor belt will fall, otherwise it will be output from the second conveyor belt to achieve material sorting.

[0024] It should be noted that the present invention mainly protects the structural support provided for the orderly entry of materials into the next process, but does not protect the software part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the overall diagram of the system.

[0026] Figure 2This is a three-dimensional diagram of the material supply mechanism.

[0027] Figure 3 It is a three-dimensional diagram of the material diverting and conveying unit.

[0028] Figure 4 This is a three-dimensional diagram of the first conveying unit.

[0029] Figure 5 It is a three-dimensional diagram of the second conveying unit.

[0030] Figure 6 and Figure 7 It is a cross-sectional view of the second conveying unit and the first material shaping unit.

[0031] Figure 8 It is a three-dimensional diagram of the packaging bag supply mechanism.

[0032] Figure 9 This is a bottom view of the bag compartment.

[0033] Figure 10 It is a three-dimensional diagram of the bag transport mechanism and the finished product output mechanism on the bag transport mechanism.

[0034] Figure 11A 、 Figure 11B and Figure 11C It is a cross-sectional view of the material transmission and pushing mechanism.

[0035] Figure 12 This is a structural diagram of the first guide groove.

[0036] Figure 13 This is the structural diagram of the second pushing unit.

[0037] Figure 14 This is a structural diagram of the bag opening and filling mechanism, bag transport mechanism, and the first beating unit.

[0038] Figure 15 、 Figure 16 and Figure 17 This is the structural diagram of the bag opening and unloading unit.

[0039] Figure 18 A three-dimensional image of a scallop.

[0040] Figure 19 It is a schematic diagram of the three-dimensional structure of the bag supporting plate.

[0041] Figure 20 Schematic diagram of the layout of the shaping mechanism.

[0042] Figure 21 Structural diagram of the first tapping unit.

[0043] Figure 22 and Figure 23 This is the structural diagram of the shaping mechanism.

[0044] Figure 24 、 Figure 25 and Figure 26 This is the structural diagram of the transverse shaping part.

[0045] Figure 27 and Figure 28 This is the structural diagram of the longitudinal shaping part.

[0046] Figure 29 Schematic diagram of the three-dimensional structure of the crease component.

[0047] Figure 30 and Figure 31 It is the structural diagram of the sealing mechanism.

[0048] Figure 32 This is a three-dimensional diagram of the installation status of the bag pressing unit and the insulation block.

[0049] Figure 33 This is a partial structural diagram of the sealing unit.

[0050] The meanings of the symbols in the figure are as follows:

[0051] 1-Material supply mechanism 10-Main support frame

[0052] 100 - Material diverting and conveying unit 101 - Main conveyor belt 102 - Diverter plate assembly 1021 - First turning pin 1022 - Partition plate 1023 - Diverter plate 1024 - Second turning pin 1025 - Arc groove

[0053] 103-First Steering Drive 1031-Steering Support 1032-Steering Power Unit 104-Curved Plate

[0054] 110 - first conveying unit 111 - first conveyor belt 112 - first photoelectric detection component 113 - unloading component 114 - stopper 1151 - first baffle 1152 - second baffle 1153 - third baffle

[0055] 120-Second conveying unit 121-First material buffer warehouse 122-Second material buffer warehouse

[0056] 123-scraper assembly 1231-scraper plate 1232-scraper drive 124-second photoelectric detection assembly

[0057] 125-discharging plate 126-material temporary storage platform 127-auxiliary blanking parts

[0058] 130-first material shaping unit 131-first shaping drive 132-first shaping moving plate

[0059] 140-First Pushing Unit

[0060] 2-Packing bag supply mechanism

[0061] 210-Bag bin 2101-Bag panel 2102-Curved frame 2103-Bag block

[0062] 220-First suction bag unit 2201-First suction cup 2202-First suction bag drive

[0063] 2203-Suction cup connector

[0064] 230-Third photoelectric detection component

[0065] 3-Bag transport mechanism 300-Second conveyor belt 301-Second conveyor drive 302-Side support plate

[0066] 303-partition plate 304-bag bottom baffle 305-bag support plate

[0067] 3110-Bag head 3111-Bag bottom

[0068] 4- Material pushing mechanism 410- Material receiving and diverting unit 4101- First guide groove 4102- Second diverting drive 4103- Second guide groove 4014- Transition channel

[0069] 420- Second Pushing Unit 4201- Push Rod

[0070] 4202-contact assembly 42021-push piece 42022-protrusion 421-blocking part

[0071] 5-Bag opening and filling mechanism 500-Second suction cup unit

[0072] 501-Second suction cup group 5011-Suction cup connecting rod

[0073] 502- Second suction cup drive 5021- Rotating disk 5022- Suction cup rotation power component

[0074] 5023-first rotating axis 5024-second rotating axis 5025-bag opening guide rail

[0075] 5026-Front end connecting rod 5027-Rear end connecting rod

[0076] 504-first elastic component

[0077] 510-bag holding and discharging unit 511-first shell 512-second shell 5110-detection hole

[0078] 513-rotation drive 514-power rod

[0079] 6-shaping mechanism 600-first beating unit 601-beating cylinder 602-beating board

[0080] 610-Second Beating Unit

[0081] 620-first bag shaping unit 6210-transverse shaping assembly 6211-transverse shaping support plate

[0082] 6212- Horizontal shaping part 62121- First rotating rod 62122- Second rotating rod 62123- Fixed seat

[0083] 62124-Horizontal shaping plate 62125-Horizontal shaping drive

[0084] 6220-Longitudinal shaping component 6221-Vertical support plate

[0085] 62221-first support plate 62222-second guide rod 62223-third support plate

[0086] 62224-Fourth guide rod

[0087] 6223-Mobile board

[0088] 6224-Longitudinal shaping drive 62241-Circular turntable 62242-Annular power component

[0089] 62243-third rotating axis 62244-fourth rotating axis 62245-bending connecting rod

[0090] 6225-first longitudinal shaping plate 6226-second longitudinal shaping plate

[0091] 6230-Shaped Distance Drive

[0092] 6240-Crease assembly 6241-Crease drive 6242-Crease block

[0093] 62421- crease connection block 62422- crease straight plate 62423- crease oblique plate

[0094] 630-Plastic Blowing Tube

[0095] 7-Sealing mechanism 710-Bag pressing and sealing assembly 711-Insulation block 712-Sealing unit

[0096] 7121- Sealing block 7122- Heating element 7123- High temperature resistant rubber sheet 7124- High temperature anti-sticking tape

[0097] 7125-Temperature measuring element

[0098] 713-Bag pressing unit 7131-Bag pressing transition plate group 7132-Bag pressing straight plate 7133-Bag pressing inclined plate

[0099] 720-Sealing drive 730-Sealing fixed plate

[0100] 741- sliding bearing 742- position adjustment plate 743- handle 744- position adjustment guide shaft 745- adjustment screw

[0101] 8- Finished product output mechanism 81- Discharge baffle 82- Discharge drive mechanism

[0102] 9-Control mechanism 10-Support frame DETAILED DESCRIPTION

[0103] like Figure 1-32 As shown, the entire system of the present invention includes a main support frame 10 and a material supply mechanism 1 fixed on the main support frame 10 to supply materials to be packaged;

[0104] The packaging bag supply mechanism 2 is used to realize the packaging bag supply function;

[0105] The bag transport mechanism 3 moves the packaging bags to different stations;

[0106] The material transfer and pushing mechanism 4 is used to transfer the material dropped from the material supply mechanism and push the material into the packaging bag;

[0107] The bag opening and filling mechanism 5 is used to open the packaging bag and put the material into it;

[0108] Shaping mechanism 6, shaping the mouth of the packaging bag to prepare for sealing;

[0109] Sealing mechanism 7, used for sealing the packaging bag;

[0110] The finished product output mechanism 8 is used to output the finished product to the next process.

[0111] Control mechanism 9, which obtains signals from various sensors in the device and controls all driving operations;

[0112] After the material supply mechanism 1 and the packaging bag supply mechanism 2 supply the material and the packaging bag respectively, the material is placed into the packaging bag by the bag opening and filling mechanism 5, and then the packaging bag is first shaped by the shaping mechanism 6, and then sealed by the sealing mechanism 7, and finally output to the next process by the finished product output mechanism 8. The above-mentioned travel path of the packaging bag is completely realized by the bag transport mechanism 3 with an inclined transport surface. In order to ensure the above-mentioned movement function, such as Figure 1As shown, the entire bag transport mechanism 3 can be regarded as a road, which is extended along the processing direction of the packaging bag supply mechanism 2, the shaping mechanism 6, the sealing mechanism 7 and the finished product output mechanism 8, thereby playing the role of orderly connecting and conveying materials at each process, thereby ensuring the continuity, efficiency and fast pace of the overall processing structure.

[0113] To facilitate a further understanding of the specific structure of the present invention, each mechanism is described in detail below:

[0114] 1. Material supply organization

[0115] like Figure 2-Figure 7 As shown, the material supply mechanism 1 includes a material diverting and conveying unit 100, a first conveying unit 110, a second conveying unit 120, a first material shaping unit 130, and a first pushing unit 140. The material diverting and conveying unit 100 is arranged at the front end of the first conveying unit 110. When the mechanism behind the device has no material demand, the material diverting and conveying unit 100 diverts the material and prevents it from flowing into the first conveying unit 110.

[0116] like Figure 3As shown, the material diverting conveying unit 100 includes a main conveyor belt 101, a paddle assembly 102, and a first diverting drive 103 that drives the diverting paddle 1023 to turn. The width of the main conveyor belt 101 is greater than the width of the first conveyor belt 111 in the first conveying unit 110. The first diverting drive 103 includes a diverting support 1031 fixed on the diverting baffles on both sides of the main conveyor belt 101. Diverting baffles are provided on both sides of the main conveyor belt 101. A diverting power unit 1032 is provided on the diverting support 1031. The paddle assembly 102 includes a first turning pin 1021, a partition plate 1022, a diverting paddle 1023, and a second turning pin 1024. One end side surface of the diverting paddle 1023 is connected to the partition plate 1022 through a first The steering support 1031 is connected to the first rotating pin 1021. The driving end of the steering power unit 1032 is connected to the second rotating pin 1024. The second rotating pin 1024 is located in the middle of the steering dial plate 1023. The steering support 1031 is provided with an arcuate groove 1025 to guide the second rotating pin 1024. The second rotating pin 1024 drives the steering dial plate 1023 to rotate about the first rotating pin 1021 as the rotation axis and the second rotating pin 1024 as the action point. The partition plate 1022, which serves to divert the output end of the main conveyor belt 101, is located in the middle of the width direction of the main conveyor belt 101. The steering dial plate 1023 has two working positions during its movement. The first workstation is that the end of the steering plate 1023 away from the partition plate 1022 rests on the steering baffle on the left, allowing the material to enter the material recovery box and blocking the material from entering the second conveying unit and flowing into the next process of the device. The second workstation is that the end of the steering plate 1023 away from the partition plate 1022 rests on the steering baffle on the right, allowing the material to enter the second conveying unit and blocking the material from entering the material recovery box.

[0117] In order to better guide the material, an arc plate 104 or an inclined plate is provided on the side of the main conveyor belt 101 before the material passes through the shift plate assembly 102.

[0118] like Figure 4As shown, the first conveying unit 110 includes a first conveyor belt 111, and a first photoelectric detection component 112 and a discharge component 113 are sequentially arranged on the side of the first conveyor belt 111 along the direction of material movement. When there is too much material on the first conveyor belt 111, the first photoelectric detection component 112 includes two adjacent photoelectric sensors. When the trigger time interval of the two photoelectric sensors is lower than the set value, the discharge component 113 behind the first photoelectric detection component 112 starts to work, removing the corresponding excess material on the first conveyor belt 111 from the current queue and pushing or blowing it into the material recovery box on the side from the preset drop-out port on the first conveyor belt 111, thereby maintaining the uniform spacing of the materials in the transport queue. In addition to the discharge component 113, baffles are set at other positions on both sides of the first conveyor belt 111 to effectively prevent materials from falling from the first conveyor belt 111. The unloading assembly 113 can use a compressed air nozzle to blow the material off, or it can be arranged as a cylinder, a crank slider or even a screw slider or similar pushable structure, as long as it can realize the function of pushing out the material. A baffle 114 is set above the first conveyor belt 111 to lay the upright objects flat. In this solution, the baffle 114 is supported by baffles on both sides. The reason for setting the baffle 114 is that during normal material transportation, the soft bag of nuts, such as the nut bag described in the present invention, is usually fed in a flat state with the bag opening facing the same side; however, due to many factors such as the collision of materials with each other, the vibration of the conveyor belt surface, and even the random inspection personnel taking the bag for inspection and then putting it back at will, the material may be forced to be in an upright state; the setting of the baffle 114 can make the material that is too high due to standing upright be pushed back to a flat state by the baffle 114 at a specific height, so as to ensure that the material temporary storage platform at the next workstation can receive the material normally. In order to ensure the controllability of material transportation, the rotation speeds of the main conveyor belt 101 and the first conveyor belt 111 are adjustable.

[0119] like Figure 5As shown, the second conveying unit includes a material storage platform, a first material buffer bin and a second material buffer bin arranged on both sides of the material storage platform, a scraper assembly, and a second photoelectric detection assembly. The scraper assembly includes a scraper plate and a scraper drive. After the material is conveyed by the first conveyor belt 111, it enters the material storage platform. The scraper drive drives the scraper plate to move left and right, and alternately transfers the material on the material storage platform to the discharge plates located on both sides of the material storage platform. The material plate drive connected to the control mechanism 9 will drive the discharge plate to open, so that the material falls into the material buffer bin. The retractable discharge plates at the upper end surfaces of the first material buffer bin and the second material buffer bin and the reciprocating movement of the aforementioned scraper plates can all be achieved through software control. Of course, during actual operation, sensing equipment such as sensors can also be arranged as appropriate to achieve the above-mentioned material dropping effect. The scraper plate includes two stations: one aligned with the first baffle 1151 near the first material buffer, and the other aligned with the second baffle near the second material buffer. During the switching process between the first and second stations, the scraper plate pushes material originally located on the temporary storage platform onto the discharge plate positioned above the buffer. The discharge plate then opens and closes, causing the material to fall into the first and second material buffers under its own weight or external force. It is noteworthy that the discharge plate remains in an extended, covered, or closed position during the scraper plate's reciprocating scraping motion. Only after the shaped material in the two buffers is pushed out by the first pusher unit and the first pusher unit and the first shaping movable plate are reset does the discharge plate open, unloading the material on the discharge plate into the corresponding buffer. The discharge plate then recloses, and the first shaping movable plate operates, shaping the material in the corresponding buffer. Only after the materials in the two buffer bins have been shaped, the first pushing unit meets the pushing conditions. Of course, in actual operation, the first pushing unit can also be designed as a single-rod dual-group pushing structure, that is, the materials in the two buffer bins can be shaped independently by two sets of pushing units working independently. Obviously, the efficiency is not as good as the first pushing unit of the present invention, so it will not be described here.

[0120] The material temporary storage platform is no lower than the discharge plates on both sides, allowing the scraper to easily scrape the material onto the discharge plates. To optimize the material's ability to fall from the discharge plates into the material buffer, a bracket is provided on the outer side of the material buffer. Auxiliary material-dropping components are fixed to the bracket, located directly above the discharge plates. In this embodiment, the auxiliary material-dropping components are air blowing units, facing the material buffer, accelerating the material's descent into the material buffer.

[0121] like Figure 6As shown, the first material shaping unit 130 includes a first shaping drive 131 and a first shaping movable plate 132. The first shaping movable plate 132 is the side wall of the first material buffer bin and the second material buffer bin. The side wall is located on the side of the length direction of the material. The first shaping drive 131 drives the corresponding side wall to move back and forth, thereby squeezing the material to make the material slender. Optimally, the first shaping movable plate 132 is arc-shaped or has a certain angle with the horizontal direction, so that it fits the material better. The first shaping movable plates 132 in the first material buffer bin and the second material buffer bin squeeze the material, making the material as slender as possible within the allowable range, so that the material entering the later process is conveniently stuffed into the packaging bag.

[0122] like Figure 5 and Figure 7 As shown, the first pushing unit 140 is arranged between the first material buffer bin and the second material buffer bin in the end direction of the material, and the first pushing unit 140 pushes the material near the bottom of the material buffer bin to the material receiving and diverting unit 410 of the material pushing and transferring mechanism 4.

[0123] The working process of the material supply mechanism 1 is as follows:

[0124] S11. The device is turned on, and the control mechanism 9 controls the first steering drive 103 to work, so that the steering dial plate 1023 is located at the second workstation, and the material moves from the material steering conveying unit 100 to the first conveying unit 110. The first photoelectric detection component 112 on the side of the first conveying unit 110 detects the loading speed. When the distance between two adjacent materials is too close, that is, the distance between adjacent materials is too close, the two photoelectric sensors in the first photoelectric detection component 112 transmit a signal to the control mechanism 9, and the unloading component 113 is activated, so that the excess material is separated from the transport queue of the first conveyor belt 111 and moves to the material recovery box. In addition, when the distance between two adjacent materials is too close, regardless of whether there is material on the material buffer bin, the two discharge plates and the material temporary storage platform, the excess material must be removed; and if there is material on the material buffer bin, the two discharge plates and the material temporary storage platform, the first conveyor belt should stop working instantly. After the material on the material temporary storage platform is "digested" or enters the next process, the first conveyor belt will re-feed the material to the material temporary storage platform.

[0125] S12: After the control mechanism 9 receives a signal from the first photoelectric detection component 112, that is, after detecting incoming material from the first conveyor unit 110 and detecting material falling onto the material temporary storage platform via the second photoelectric detection component, the control mechanism 9 controls the scraper drive, causing the scraper plate to move back and forth between the first station and the second station. When the material is placed on the discharge plate of the corresponding material buffer bin, the control mechanism 9 determines whether the material in the corresponding material buffer bin has been discharged. If discharged, the control mechanism 9 controls the discharge plate to be located at the first station, allowing the material to enter the corresponding material buffer bin, and then switches to the second station.

[0126] S13. After the material enters the corresponding material buffer, the first material shaping unit 130 shapes the material, and the control mechanism 9 determines whether the material is needed in the material pushing mechanism 4. When the material is needed, the control mechanism 9 controls the first pushing unit 140 to push the material into the material pushing mechanism 4.

[0127] 2. Packaging bag supply mechanism

[0128] like Figure 8 and Figure 9As shown, the packaging bag supply mechanism 2 includes a bag bin 210 and a first bag suction unit 220. The bag bin 210 includes a bin panel 2101, which serves as the bottom of the bin 210, and an arc-shaped frame 2102 that supports multiple packaging bags. In this embodiment, the bag bin 210 and the first bag suction unit 220 are arranged vertically opposite each other. The arc-shaped frame 2102 has a different height on one side than on the other side. This is due to the inherent structural differences of packaging bags: to ensure volume, packaging bags typically have a foldable bottom that automatically expands the bag cavity after material is introduced. This foldable bottom structure results in the bottom of the bag being significantly thicker than the bag opening when the bag is closed, creating a thickness difference between the bottom and the bag opening. This thickness difference becomes more pronounced when multiple unopened bags are stacked in the same direction. The use of the arc-shaped frame 2102 of the present invention significantly facilitates the reliable storage of packaging bags with such thickness differences. More specifically, the curved frame 2102 has an upward-opening, box-like structure. The outer wall of the curved frame 2102, which contacts the bottom of the bag, is taller than the inner wall, which contacts the top of the bag. In a horizontal projection perpendicular to the length of the bag strip, the arc formed by the projection of the outer wall and the arc formed by the projection of the inner wall form concentric circles. The bags are made of soft material and placed horizontally within the bag compartment 210. The compartment panel 2101 has a bag outlet opening, through which the bags can pass under suction. Once the bag resting on the inner side of the compartment panel 2101 is drawn through the outlet opening, the adjacent bag clings to the compartment panel 2101 under the weight of the bag behind it. Optimally, the bag outlet is located at the bottom of the bag bin, forming a bin panel for bag outlet. Bag retaining plates 2103 are arranged around the bag outlet, and each bag retaining plate 2103 is hingedly fixed to the bin panel 2101 via a hinge axis perpendicular to the bin panel surface. The bag retaining plates 2103 are used to adjust the size of the bag outlet and to hold the packaging bags at the bag outlet to prevent them from falling out.

[0129] The first bag suction unit 220 includes a first suction cup 2201 and a first bag suction driver 2202. The first suction cups 2201 and the bag bin 210 are both multiple and identical in number. The multiple first suction cups 2201 are connected to the first bag suction driver 2202 via a suction cup connector 2203. In this embodiment, there are two first suction cups 2201.

[0130] The first suction cup 2201 is provided with a negative pressure tube, which is connected to a corresponding negative pressure supply unit. The controlled end of the negative pressure supply unit is connected to a control mechanism.

[0131] Optimally, in order to detect whether the bag is taken successfully, the packaging bag supply mechanism 2 further includes a third photoelectric detection component 230, and the third photoelectric detection component 230 and the first bag suction drive 2202 are respectively connected to the corresponding ports of the control mechanism.

[0132] The bag bin 210 is mounted on the side of the side support plate 302 of the bag transport mechanism 3 via a support portion. In this embodiment, the first bag suction units 220 are mounted on the side support plates 302 on both sides of the bag transport mechanism 3, and the first suction cups 2201 pass through the corresponding side support plates 302 to absorb the leading and trailing ends of the uniform packaging bag.

[0133] 3. Bag transport mechanism

[0134] like Figure 10 As shown, the bag transport mechanism 3 includes a second conveyor belt 300, a second conveyor drive 301, side support plates 302, and multiple partition plates 303. The multiple partition plates 303 are sequentially spaced perpendicular to the second conveyor belt 300 and form an array of partitions with the second conveyor belt 300. The side support plates 302 are located on both sides of the second conveyor belt 300 and are parallel to the second conveyor belt 300. The partition plates 303 are narrower than the width of the second conveyor belt 300 and are positioned away from the side of the subsequent processing mechanism. The side support plates 302 on the side of the conveyor belt closest to the subsequent processing mechanism press against the second conveyor belt 300 to prevent damaged materials from falling under the second conveyor belt 300. Optimally, a gap is created between the side support plates 302 on the lower side of the belt and the bag bottom baffle 304 to allow debris to fall through. The first suction cup 2201, under the action of the first bag suction drive 2202, sucks the packaging bags in the bag bin 210 into the partition room of the bag transport mechanism 3. The side support plates 302 serve as supports for both ends of the packaging bags during the transportation of the packaging bags, and play a role in positioning the packaging bags in the up and down directions, so that the center of the packaging bag after filling can be consistent with the center required by the shaping mechanism 6, sealing mechanism 7, bag opening mechanism 5 and other workstations. The second conveying drive 301 drives the second conveyor belt 300 to rotate and transport the packaging bags to the next workstation. The bag bottom baffle 304 is vertically arranged on the side of the partition plate 303 and is used to block the bottom of the packaging bag. In order to facilitate viewing of other structures in the figure, most of the bag bottom baffle 304 is hidden. As shown in the figure. Figure 19 As shown, a bag support drive is provided below the side support plate 302 to drive the bag support plate 305 upward and downward. The bag support plate 305 is located at the bag bottom 3111. When the bag opening and filling mechanism 5 clamps the bag head 3110 to a certain height, the bag support drive drives the bag support plate 305 upward to keep the bag parallel to the second conveyor belt 300. When not driven, the bag support plate 305 is flush with the surface of the side support plate 302.

[0135] During the bag opening process, the central axis of the bag remains parallel to the second conveyor belt 300. Since the bottom of the folded bag is nearly perpendicular to the side support plates 302 during the opening process, the bag is tilted on the second conveyor belt 300. As the second conveyor belt 300 operates in a closed-loop, the compartments of the bag transport mechanism 3 continuously cycle through the bag supply mechanism 2, the material pushing mechanism 4, the bag opening and filling mechanism 5, the shaping mechanism 6, the sealing mechanism 7, and the finished product output mechanism 8, thus achieving a feeding effect.

[0136] The inclined position of the second conveyor belt 300 facilitates the transfer and filling of flexible packaging materials. Furthermore, in this inclined state, the bag's bottom 3111 and longitudinal bottom surface fully contact the bag support plate 305 and side support plate 302 under its own gravity, ensuring accurate positioning and conveyance within the partitions. This structure offers a simpler mechanical structure than other bag conveying methods, offers higher efficiency, and provides better automatic alignment. The lateral distance between the partitions is slightly larger than the bag's width, allowing the bag to automatically align under gravity within the inclined partitions. However, this structure also presents certain issues. Specifically, the bag opening is forced upward by the bag opening and filling mechanism 5, and the material then enters the bag under the pushing action of the material transfer mechanism 4. However, in actual operation, it has been found that when the bag body and the pushing path of the material transfer mechanism 4 are not aligned, the bottom of the bag bends, preventing the material from reaching the bottom directly, thus affecting the feeding process. The present invention solves the above problem by providing a reserved hole for the bag holding plate 305 to extend out of the side support plate 302 at the bag opening and filling mechanism 5. Whenever the bag opening and filling mechanism 5 opens the bag mouth, the bag holding plate 305 is synchronously moved by the following steps: Figure 10 The reserved hole shown rises, thereby pushing the bottom of the packaging bag to rise synchronously with the bag opening; in this way, it can be ensured that the pushing path of the pushing mechanism 4 is basically flush with the long direction of the packaging bag each time, which ensures that the material can be pushed to the bottom, and the operation is extremely smart and efficient.

[0137] In addition, due to the processing technology of the bag body, the bottom edge of the bag body is usually in a hard angled shape after hot pressing. The above-mentioned hard angled bottom edge of the bag body will not affect the matching state of the bag body and the second conveyor belt 300 when the bag body is not opened. However, when the material is pushed into the packaging bag and shaped, the bottom of the packaging bag is pressed and stretched open. At this time, the hard angled bottom edge of the bag body is tilted downward and squeezes the side support plate 302, resulting in the bag body being unable to present the required fitting transportation state. Therefore, the present invention presets a reserved gap between the bag bottom baffle 304 and the side support plate 302. Once the bottom edge of the packaging bag filled with material tilts downward, it will naturally fall into the reserved gap, thereby ensuring that the bottom bag side of the packaging bag filled with material can always be properly close to the second conveyor belt 300, while also serving as a debris drop function, thereby ensuring the reliability and efficiency of the overall bag transportation process.

[0138] The working process of the packaging bag supply mechanism 2 and the bag transport mechanism 3 is as follows:

[0139] S21, placing the packaging bags into the bag bin 210. Due to the effect of gravity, the packaging bags at the bottom are pressed against the bin panel 2101 in the arc-shaped frame 2102.

[0140] S22: The control mechanism 9 controls the first bag suction drive 2202 to operate. The first suction cup 2201 uses negative pressure to suck the innermost packaging bag out of the hole in the bin panel 2101 into the corresponding partition. The third photoelectric detection component 230 detects whether the bag is removed successfully. If the bag is removed successfully, the process proceeds to step S23. If the bag is not removed successfully, the control mechanism 9 controls the partition to operate to all subsequent workstations, and the corresponding workstations do not operate.

[0141] S23: When the first suction cup 2201 is retracted in a direction away from the bag bin 210, i.e., downward, and reaches the set position, the negative pressure supply unit stops supplying negative pressure, and the packaging bag falls from the first suction cup 2201 into the partition room under the action of gravity;

[0142] S24, the control mechanism 9 obtains the signal of the positioning photoelectric detection position, and controls the bag transport mechanism 3 to operate so that the packaging bag enters the next process.

[0143] 4. Material transmission and pushing mechanism

[0144] Figure 11- Figure 13 As shown, the material transmission and pushing mechanism 4 includes a material receiving and diverting unit 410 and a second material pushing unit 420 .

[0145] The material receiving and diverting unit 410 includes a first guide channel 4101, a second diverting drive 4102 that drives the first guide channel 4101 to divert, a second guide channel 4103, and a transition channel. The first guide channel 4101, driven by the second diverting drive 4102, comprises two workstations. The first workstation interfaces with the outlet of the material buffer, thereby receiving material pushed out of the corresponding material buffer by the first pushing unit 140. The second workstation forms an annular cavity between the first guide channel 4101 and the second guide channel 4103. In this embodiment, the annular cavity is cylindrical. The rotating axis of the first guide channel 4101 is adjacent to the transition channel, and the input end of the transition channel is adjacent to the output end of the cavity. The transition channel serves as the overall output of the material transmission and pushing mechanism 4, facilitating connection to the next process.

[0146] The first guide groove 4101 obtains the material at the front end and moves it from the first station to the second station, so that the material may automatically fall out under the action of gravity; on the one hand, the second guide groove 4103 can prevent the material from being output during the rotation of the first guide groove 4101; on the other hand, the second guide groove 4103 can cooperate with the first guide groove 4101 to form an annular cavity, so that the material becomes an external shape that is compatible with this cavity, and this annular cavity can also provide a guide channel for pushing the material.

[0147] The second pushing unit 420 includes a push rod 4201, a contact assembly 4202 fixed to the end of the push rod 4201, and a push rod drive. The push rod 4201 moves back and forth in the length direction of the second guide groove 4103. Optimized, in order to reduce the damage caused by large impact on the material and effectively improve the efficiency of the material transmission and pushing work, under the action of the push rod drive, the speed of the push rod 4201 from the beginning of extension to the return process is divided into the starting average speed, the middle average speed, the end stationary average speed, and the return average speed, and the return average speed ≥ the starting average speed ≥ the middle average speed > the end stationary average speed, so that the material will not be deformed or damaged due to excessive speed when it first contacts the second pushing unit 420. Especially for soft-packaging materials, the starting average speed is the high-speed operation before the material contacts the second pushing unit 420, the middle average speed is the anti-crushing working mode after the material contacts the second pushing unit 420, and the end stationary average speed can ensure that the material is fully compacted in the packaging bag. The return average speed is the high-speed return of the second pushing unit 420 after the pushing is completed to improve work efficiency.

[0148] In order to determine where to start different speeds, three induction switches are sequentially arranged on the main support frame 10 on the side of the push rod 4201 along the length direction of the push rod 4201. When the push rod 4201 makes a specified linear motion, the induction switches will be triggered in sequence, so that the push rod 4201 is controlled to jump from the previous average speed to the next average speed. During the return process of the push rod 4201, until it touches the first induction switch in the return process, the return average speed is maintained until it reaches the initial state. Optimally, the driving device of the second pushing unit 420 is provided with a pushing resistance threshold. When the pushing resistance of the driving device is greater than the threshold, it indicates that the material is stuck in the cavity. After the control mechanism 9 obtains the signal corresponding to the driving device resistance being greater than the threshold (for example, the power is greater than the threshold), the control mechanism 9 activates the alarm device and stops all mechanisms from working to protect the stuck material, avoid excessive squeezing and damage to the material, and avoid damage to the mechanical structure.

[0149] The contact assembly 4202 in the second pusher unit 420 includes a pusher piece 42021 and a protrusion 42022. The bottom of the pusher piece 42021 is fixed to the push rod 4201 via a connecting plate. In the above embodiment, the pusher piece 42021 is generally shaped like a wide groove, with the size gradually increasing from the bottom to the top of the groove. This facilitates the fixing of the pusher piece 42021 and the protrusion 42022. Furthermore, the protrusion 42022 is fixed to the bottom of the concave arc surface of the pusher piece 42021 by means of threaded engagement, bonding, or even welding. In a preferred embodiment, the protrusion 42022 is fixed to the push rod 4201 via threaded engagement, so that the protrusion 42022 can be replaced in a timely manner if it becomes worn. When the material is a soft bag, the wide, grooved pusher 42021, with its curved contact surface, adheres tightly to the material surface. Compared to flat contact, this curved contact surface provides a certain degree of compression, preventing further deformation of the shaped material. Simultaneously, protrusion 42022 prevents the material from forming a vacuum zone between the contact surface of the material and pusher 42021 when the push rod 4201 retreats, which could result in the material adsorbing onto the pusher 42021. Furthermore, when the material is a flexible bag, protrusion 42022 pushes against the top of the air-containing flexible bag, causing it to bend back into the bag. Compared to flat-pressing a bag, this approach reduces the chance of the bag's top surface rebounding, and the entire volume of the material inside the bag is reduced, facilitating subsequent sealing operations. The entire contact assembly 4202 is connected to the push rod 4201 via a connecting plate, allowing it to be replaced according to different materials, ensuring flexibility and a wider range of applications.

[0150] When the detection component in the bag opening and filling mechanism detects that the packaging bag is not opened, the material can continue to enter the next process, and the material can also be stopped from falling further by the material blocking portion 421 arranged on the side of the second guide groove.

[0151] In this embodiment, the material transferring and pushing mechanism 4 includes two groups, which are used to transfer and push the materials in the first material buffer bin 121 and the second material buffer bin 122 respectively.

[0152] The process of the material pushing mechanism 4 is as follows:

[0153] S41, the control mechanism 9 controls the first guide groove 4101 to be located at the first working position, the material is discharged from the material buffer, and then controls the second steering drive 4102 to rotate to the second working position;

[0154] S42 , the push rod 4201 of the second pushing unit 420 moves toward the material, pushing the material out of the cavity formed by the first guide groove 4101 and the second guide groove 4103 , and dropping the material into the packaging bag opened by the bag opening and filling mechanism 5 .

[0155] 5.Bag opening and filling mechanism

[0156] like Figure 14-18 As shown, the bag opening mechanism includes a second suction cup unit 500 and a bag opening and discharging unit.

[0157] The second suction cup unit 500 includes a second suction cup group 501 and a second suction cup drive 502. The second suction cup group 501 includes two suction cups, which are respectively located at the openings on both sides of the packaging bag. The second suction cup drive 502 drives the two suction cups of the second suction cup group 501 to simultaneously adsorb both sides of the packaging bag, and then move in opposite directions to open the packaging bag.

[0158] The bag opening and discharging unit 510 includes a first shell-shaped body 511 and a second shell-shaped body 512 that can be closed, a bag opening and discharging support plate, and a rotary drive 513. When the first shell-shaped body 511 and the second shell-shaped body 512 are in the initial state, it is a closed working position, and the first shell-shaped body 511 and the second shell-shaped body 512 are respectively placed on both sides of the bag opening of the packaging bag; when the first shell-shaped body 511 and the second shell-shaped body 512 are in the working state, it is an open working position, and the first shell-shaped body 511 and the second shell-shaped body 512 generate a hinged movement toward each other until the tips of the first shell-shaped body 511 and the second shell-shaped body 512 are inserted into the bag opening that has been initially opened. At this time, the gap formed between the first shell-shaped body 511 and the second shell-shaped body 512 constitutes a blanking gap for blanking.

[0159] like Figure 18As shown, the first shell-shaped body 511 and the second shell-shaped body 512 both include tongues with an arc-shaped appearance. When the first shell-shaped body 511 and the second shell-shaped body 512 are in working condition, the arc surfaces of the tongues of the two groups of shell-shaped bodies are opposite to each other, thereby surrounding and forming the blanking gap; a mounting plate is arranged at the arc back of the tongue parallel to the tongue axis, and a hinge hole and a force hole parallel to each other's axes are provided on the mounting plate, and the force hole is arranged at a position between the hinge hole and the tongue, and is hinged to the bag opening and discharging support plate through the hinge hole. The rotation drive 513 is connected to the force hole through a pull rod, thereby driving the first shell-shaped body 511 and the second shell-shaped body 512 to rotate around the hinge hole, so that the two can be replaced between the opening position and the closing position.

[0160] The rotary drive 513 includes a shell-shaped power component and a power rod 514. The power rod 514 is hinged to the force hole. Each shell-shaped power component is connected to two power rods 514 hinged to the first shell 511 and the second shell 512.

[0161] The second suction cup unit 500 includes a front connecting rod and a rear connecting rod located on both sides of the packaging bag and used to fix the suction cup. A bag opening guide rail 5025 is provided on the bag opening support plate. The guide direction of the bag opening guide rail 5025 is perpendicular to the bag surface of the packaging bag. The front connecting rod 5026 and the rear connecting rod 5027 move back and forth on the corresponding bag opening guide rail 5025 under the action of the second suction cup drive 502. The second suction cup drive 502 includes a rotating disk 5021, a suction cup rotating power component 5022 that drives the rotating disk 5021 to rotate, and a first rotating shaft 5023 and a second rotating shaft 5024 fixed to the rotating periphery. The line connecting the first rotating shaft 5023 and the second rotating shaft 5024 passes through the center of the rotating disk 5021. The first rotating shaft 5023 and the second rotating shaft 5024 are respectively connected by a rotating shaft connecting rod, which is connected to the corresponding front connecting rod 5026 and rear connecting rod 5027.

[0162] When the first and second shells 511, 512 are in the open position, the bottom outer surfaces of the first and second shells 511, 512 are located inside the packaging bag. To prevent the second suction cup unit 500 from damaging itself while pressing against the corresponding shell, a first elastic component 504 is fixed to the connecting rod at the bag opening support plate. The first elastic component 504 is closer to the corresponding shell than the suction cup of the second suction cup unit 500. The function of the first elastic component 504 is to cooperate with the shell to clamp the front or rear opening of the packaging bag after the shell presses against the packaging bag, thereby preventing the packaging bag from slipping during filling and protecting the packaging bag. When the shell is in the open position, the outer wall of the shell presses the packaging bag against the first elastic component 504. The second suction cup unit 500 is located above the first elastic component 504 on the same side. To optimize the system, to detect whether the bag is open, the first and second shells 511, 512 have detection holes 5110 on their contact surfaces with the bag. A negative pressure detection component is installed on the ventilation line of the second suction cup unit 500. If the negative pressure detection components corresponding to the suction cup units on either side of the bag fail to reach a set value, the bag is unopened. A signal indicating that the bag in the compartment has not been opened is sent to the subsequent control mechanism 9, causing the material pushing mechanism 4, shaping mechanism 6, and sealing mechanism 7 to cease operation in the corresponding compartment, and the bag and material in that compartment are recovered to the material recovery area.

[0163] The working steps of the bag opening and filling mechanism 5 are as follows:

[0164] S51: When the second suction cup unit 500 moves toward the middle, the bag opening of the packaging bag moves upward, and at the same time, the bag holding unit holds the bag tail and moves upward synchronously, ensuring that the packaging bag is always flush with the second conveyor belt 300; after the two opposing suction cups in the second suction cup unit 500 are completely in contact with the corresponding surfaces of the packaging bag, the two suction cups in the second suction cup unit 500 move in opposite directions to suck the packaging bag open; when the two suction cups reach the set distance, the control mechanism 9 controls the shell-shaped body in the bag opening and unloading unit to move from the closing position to the opening position;

[0165] S52: The two suction cups continue to move in opposite directions until they are in place, and then each shell-shaped body begins to move to the start position. When the shell-shaped body is in the start position, on the one hand, the shell-shaped body presses the opening of the packaging bag against the first elastic component 504, thereby fixing the opening of the packaging bag. On the other hand, the detection hole 5110 of the shell-shaped body is exactly located on the opposite side of the corresponding suction cup, that is, the detection hole 5110 and the suction surface of the suction cup are exactly separated by the surface of the packaging bag.

[0166] S53: The control mechanism 9 obtains the negative pressure value of the suction cup through the negative pressure detection components on both sides. If the negative pressure value on one side does not reach the set value, it means that the bag opening on one side of the packaging bag is not opened. The control mechanism 9 controls the shaping mechanism 6 and the sealing mechanism 7 to move to the partition, and the shaping mechanism 6 and the sealing mechanism do not operate. The push rod 4201 can also be controlled not to operate. If the negative pressure values on both sides reach the set value, the process proceeds to step S54.

[0167] S54, the control mechanism 9 controls the push rod 4201 in the material pushing mechanism 4 to work, so that the material passes through the blanking gap formed by the two groups of shell-shaped bodies and enters the packaging bag; then the push rod 4201 returns, leaving the material in the bag cavity of the packaging bag, completing the bagging process.

[0168] During the return stroke of push rod 4201, the two groups of shells have actually begun to gradually reset, returning from the open position to the closed position. At this point, the clamping between the shells and the first elastic member 504 is no longer in place, and the bag is no longer constrained. Therefore, the friction of push rod 4201 actually causes the bag, containing the material, to move upward. At this point, the subsequent first beating unit 600 is required to vent, initially shape, and press the bag to prevent push rod 4201 from lifting the filled bag upward.

[0169] 6. Plastic surgery institution

[0170] like Figure 14 、 Figure 20-29 As shown, the shaping mechanism 6 includes a first beating unit 600 , a second beating unit 610 , and a first bag opening shaping unit 620 .

[0171] like Figure 14 、 Figure 20 and Figure 21 As shown, the first flapping unit 600 is located at the bag opening and discharging unit in the bag opening mechanism. The first flapping unit 600 comprises a flapping cylinder 601 and a flapper 602 fixed to the cylinder's drive end. The flapper 602 flaps the bulging bag filled with material, shaping it to ensure the aesthetic appearance of the finished bag. It also presses the filled bag back onto the conveyor belt, ensuring the bag's position relative to the partition.

[0172] The second beating unit 610 has the same structure as the first beating unit 600 and is disposed at the front end of the first bag opening shaping unit 620 .

[0173] The first tapping unit 600 and the second tapping unit 610 may both be provided, or one of them may be provided selectively.

[0174] The first bag opening shaping unit 620 includes a transverse shaping component 6210, a longitudinal shaping component 6220, a shaping mounting plate for fixing the transverse shaping component 6210 and the longitudinal shaping component 6220, a shaping distance drive 6230 for driving the shaping mounting plate to adjust the distance from the bag opening, and a crease component 6240.

[0175] like Figures 24-26 As shown, the transverse shaping assembly 6210 includes a transverse shaping support plate 6211, a transverse shaping portion 6212 on the transverse shaping support plate 6211, and a transverse shaping drive 62125. The right side of the transverse shaping portion 6212 includes a first rotating rod 62121, a second rotating rod 62122, a fixing seat 62123 for the transverse shaping plate 62124, and the transverse shaping plate 62124. The first rotating rod 62121 includes three rotating shafts along its length: the upper rotating shaft is connected to the transverse shaping drive 62125, and the upper middle rotating shaft is rotatably connected to the transverse shaping support plate 6211. In the above embodiment, the fixing seat 62123 is a "7"-shaped connecting member, and the first rotating rod 62121 is hinged at the corner of the "7"-shaped connecting member. The second rotating rod 62122 includes two rotating shafts. The rotating shaft at the upper end is rotatably connected to the transverse shaping support plate 6211, and the rotating shaft at the lower end is hinged to the transverse end of the "7"-shaped connecting piece. The transverse shaping plate 62124 is fixed to the vertical end of the "7"-shaped connecting piece. Specifically, under the action of the transverse shaping drive 62125, the mirror-symmetrical transverse shaping portion 6212 forms a planar four-bar linkage composed of the first rotating rod 62121, the second rotating rod 62122, the transverse shaping support plate 6211, and the horizontal transverse portion of the fixed seat 62123, so that the two symmetrical sets of transverse shaping plates 62124 always move back and forth in parallel in the direction of approaching and moving away while always pointing vertically downward. Since the transverse shaping drive 62125 is a floating structure, that is, it is hinged to the two sets of first rotating rods 62121 at only two ends, and has no other fixed structure; therefore, when the two transverse shaping plates 62124 move toward each other, the transverse shaping drive 62125 will produce an adaptive left and right offset based on the resistance fed back to the transverse shaping plates 62124 by the two sides of the packaging bag, thereby automatically correcting errors in the packaging bag size, errors in the packaging bag shape after filling, and errors in the position between the partitions, ensuring the best shaping effect. The vertical portion of the fixed seat 62123 is provided with multiple mounting holes along the length direction, and the transverse shaping plates 62124 are correspondingly provided with waist-shaped holes, which can be adjusted or replaced according to the shaping size requirements. The height of the transverse shaping plates 62124 on the "7"-shaped connector is adjustable, so that it is suitable for different packaging bags. Since two sets of transverse shaping components are provided on the transverse shaping support plate 6211, the function of shaping two packaging bags at the same time can be realized, which significantly improves the actual shaping efficiency.

[0176] like Figures 26-27 As shown, the longitudinal shaping assembly 6220 includes a vertical support plate 6221, a rectangular movable portion, a plate moving portion, and a longitudinal shaping drive 6224. The rectangular movable portion includes a rectangular frame, which includes a first support plate 62221 and a second guide rod 62222, which are perpendicular to each other, a third support plate 62223 parallel to the first support plate 62221 and perpendicular to the second guide rod 62222, and a fourth guide rod 62224 parallel to the second guide rod 62222 and perpendicular to the third support plate 62223. A first longitudinal shaping plate 6225 is fixed to the first support plate 62221. The plate moving portion includes a movable plate 6223 that is sleeved on the second guide rod 62222 and moves back and forth. A second longitudinal shaping plate 6226 is provided on the movable plate 6223 and can move toward and away from the first longitudinal shaping plate 6225. The longitudinal shaping drive 6224 is mounted on the vertical support plate 6221 and connected to the third support plate 62223 and the movable plate 6223, respectively. This longitudinal shaping drive 6224 drives the third support plate 62223 and the movable plate 6223 to move toward and away from each other, thereby enabling the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 to open and close within the packaging bag. In this embodiment, the longitudinal shaping drive 6224 is a circular steering drive, which rotates back and forth to achieve synchronous movement toward and away from each other between the third support plate 62223 and the movable plate 6223. The principle of this circular steering drive is the same as that of the second suction cup drive 502. Specifically, the annular steering drive includes a circular turntable, an annular power component that drives the circular turntable to rotate, a third rotating shaft and a fourth rotating shaft fixed to the periphery of the circular turntable, the connecting line of the third rotating shaft and the fourth rotating shaft passes through the center of the circular turntable, and the third rotating shaft and the fourth rotating shaft are respectively connected by connecting rods, and the connecting rods are connected to the corresponding third support plate 62223 and the movable plate 6223. In order to shape two packaging bags at the same time, corresponding first longitudinal shaping plates 6225 and second longitudinal shaping plates 6226 are respectively set on both sides of the first support plate 62221 and the movable plate 6223, and the two ends of the movable plate 6223 are respectively sleeved on the second guide rod 62222 and the fourth guide rod 62224 parallel to the second guide rod 62222. In other words: with Figure 28 For example, in actual operation, the longitudinal shaping drive 6224 rotates, and the driving shafts apply thrust to the third support plate 62223 and the moving plate 6223; when the third support plate 62223 is subjected to the thrust, Figure 28The upward movement of the first support plate 62221 is then driven upward by the second guide rod 62222 and the fourth guide rod 62224. Simultaneously, due to the action of the transmission shaft, the movable plate 6223 is guided and slid downward relative to the second guide rod 62222 and the fourth guide rod 62224. Thus, the movable plate 6223, to which the second longitudinal shaping plate 6226 is fixed, moves downward, while the first support plate 62221, to which the first longitudinal shaping plate 6225 is fixed, moves upward, causing the corresponding second longitudinal shaping plate 6226 and the first longitudinal shaping plate 6225 to move toward and away from each other synchronously. When the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 are used to extend into the bag openings on the front and rear sides of the packaging bag, the separation of the two can open the bag opening, making it convenient for the transverse shaping plate 62124 to move towards each other from the left and right sides of the packaging bag, i.e. the narrow sides, to tuck the sides of the packaging bag; and the close movement of the two is to release the bag opening and reset it to ensure that the current packaging bag can move normally to the subsequent process.

[0177] When a first longitudinal shaping plate 6225 and a second longitudinal shaping plate 6226 form a shaping plate set, this solution employs two shaping plate sets on a rectangular frame, allowing a single device to simultaneously shape two bags. The longitudinal shaping plates are equipped with shaping air blowers 630, which blow air into the bags before inserting them to fully expand them. The longitudinal shaping plates equipped with shaping air blowers 630 can be replaced to accommodate different bag sizes.

[0178] The movement directions of the shaping distance drive 6230, the horizontal shaping drive 62125, and the longitudinal shaping drive 6224 are perpendicular to each other, forming a three-dimensional movement.

[0179] like Figure 22 and Figure 29As shown, the crease assembly 6240 includes a crease driver 6241 and crease blocks 6242 located on the front and back sides of the packaging bag, i.e., the two long sides. A second elastic component is provided on the adjacent surfaces of the two sets of crease blocks 6242 to enhance the crease effect. When the aforementioned transverse shaping assembly 6210 and longitudinal shaping assembly 6220 are in place, the two sets of crease blocks 6242, under the action of the crease driver 6241, move toward each other to obliquely clamp the front and rear sides of the middle portion of the packaging bag. The transverse shaping assembly 6210 and longitudinal shaping assembly 6220 then withdraw, completing the shaping of the packaging bag opening and revealing a curved, smooth shoulder. The crease block 6242 comprises a crease connection block, a straight crease plate secured to the crease connection block, and an inclined crease plate secured to the lower end of the straight crease plate. When the straight crease plate creases the bag, the inclined crease plate obliquely fits against the bag surface, increasing the contact surface with the bag and optimizing the crease effect. The position of the crease assembly can be adjusted to meet the specific bag requirements, meaning the crease height can be adjusted to meet the processing needs of different bags.

[0180] The working process of the shaping mechanism 6 is as follows:

[0181] S61, the control mechanism 9 controls the first beating unit 600 to perform the first shaping on the packaging bag just filled with the material;

[0182] S62, the control mechanism 9 controls the second beating unit 610 to operate, and performs a second shaping on the packaging bag just filled with the material;

[0183] S63: The control mechanism 9 controls the shaping distance drive 6230 to position the shaping plates in the transverse shaping assembly 6210 and the longitudinal shaping assembly 6220 at corresponding positions of the packaging bag to be shaped. Specifically, the transverse shaping plates 62124 are located on the left and right sides of the bag opening, and the first longitudinal shaping plates 6225 and the second longitudinal shaping plates 6226 are both extended into the packaging bag to be shaped. While the shaping distance drive 6230 is operating, the shaping air blowing pipes 630 on the longitudinal shaping plates blow air into the packaging bag, causing the packaging bag to fully open. At this time, the transverse shaping plates 62124 are in the maximum opening state, and the opening distance of the longitudinal shaping plates is smaller than the opening size of the packaging bag.

[0184] S64: The control mechanism 9 controls the transverse shaping drive 62125 in the transverse shaping assembly 6210 to operate, causing the two sets of transverse shaping plates 62124 to move toward each other and simultaneously squeeze the left and right sides of the packaging bag inward. During this process, the control mechanism 9 delays the control of the longitudinal shaping drive 6224 in the longitudinal shaping assembly 6220 to operate, causing the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 to move toward each other. That is, when the two sets of transverse shaping plates 62124 move toward each other, the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 then move toward each other. From a top-down perspective of the bag opening, the above components work together to change the original wide-mouthed square cross-section of the bag opening into a flat double "M"-shaped cross-section.

[0185] S65. The control mechanism 9 controls the crease assembly 6240 to work. The crease assembly 6240 presses the packaging bag. While the crease assembly 6240 presses the opening of the packaging bag, the shaping distance drive 6230 pulls the longitudinal shaping plate and the transverse shaping plate 62124 out of the packaging bag.

[0186] 7. Sealing mechanism

[0187] like Figure 30-Figure 32 As shown, the sealing mechanism 7 includes a bag pressing and sealing assembly 710 located on both sides of the packaging bag, a sealing drive 720, and a sealing fixing plate 730 supporting the sealing drive 720. The bag pressing and sealing assembly 710 includes a heat insulating block 711 fixed on the driving end of the sealing drive 720, a sealing unit 712 and a bag pressing unit 713 fixed up and down on the heat insulating block 711. The sealing unit 712 includes a sealing block 7121, a heating element 7122 arranged in the sealing block 7121, and a high temperature resistant rubber plate 7123 fixed on the sealing surface of the sealing block 7121. In addition, referring to Figure 33 As shown, the sealing mechanism also includes a high-temperature anti-sticking tape 7124, which covers the outside of the high-temperature resistant rubber sheet 7123. On the one hand, it plays the role of fixing the high-temperature resistant rubber sheet 7123, and on the other hand, it can also prevent the packaging bag from directly contacting the sealing block during the heat sealing process, thereby causing adhesion and burns to the packaging bag. It is worth noting that in the entire length direction of the sealing block 7121, the high-temperature resistant rubber sheet 7123 is higher than the sealing plane of the sealing block 7121. Because the high-temperature resistant rubber sheet 7123 itself is compressible, it can automatically fit according to the thickness of different areas of the bag under the action of sealing pressure. At the same time, in order to control the temperature of the sealing block 7121, the sealing block 7121 is also provided with a temperature measuring element 7125 to adjust the working power of the heating element 7122.

[0188] The bag pressing unit 713 includes a bag pressing transition plate group 7131, a bag pressing straight plate 7132, and a bag pressing inclined plate 7133. One end of the bag pressing transition plate group 7131 is fixed to the insulation block 711, and the other end is connected to the pressure plate straight plate. The pressure plate inclined plate is arranged below the bag pressing straight plate 7132 and is tightly attached to the outer wall of the packaging bag after the bag is pressed. The length of the bag pressing transition plate group 7131 is adjustable, that is, the distance between the bag pressing straight plate 7132 and the inclined plate and the insulation block 711 is adjustable, so that the bag pressing straight plate 7132 and the bag pressing inclined plate 7133 are suitable for packaging bags with different materials placed in them. The bag pressing unit 713 is used to achieve air exhaust before sealing and ensure a smooth seal, ensuring that the bag opening is not misaligned. The bag pressing unit is replaceable, so it can be used with packaging bags containing different amounts of materials.

[0189] To accommodate different packaging bags and different sealing heights, the sealing mechanism 7 also includes a sealing position adjustment assembly for adjusting the position of the sealing fixed plate 730. The sealing position adjustment assembly includes a position adjustment plate 742, which is slidably engaged with a sliding bearing 741 on the main support frame 10 via a position adjustment guide shaft 744, and the top end of the position adjustment guide shaft 744 is fixed to the sealing fixed plate 730. At the same time, an adjustment screw 745 is rotatably engaged with the position adjustment plate 742, and the end of the adjustment screw 745 located outside the position adjustment plate 742 constitutes an operating end and is provided with a handle 743 for easy operation, while the end of the adjustment screw located inside the position adjustment plate 742 extends axially and forms a threaded engagement with the main support frame 10. In this way, whenever the handle 743 is rotated, the adjustment screw 745 generates a screw slider movement relative to the main support frame 10, thereby causing the position adjustment plate 742 to move toward and away from the main support frame. The movement of the position adjustment plate 742 can drive the sealing fixing plate 730 to generate a lifting movement, thereby completing the online adjustment function of the entire sealing mechanism 7.

[0190] The working process of the sealing mechanism 7 is as follows:

[0191] S71. The position of the bag pressing and sealing assembly 710 is controlled by adjusting the handle 743. The control mechanism 9 controls the operation of the heating element 7122 and maintains different temperature states according to the properties of different packaging bags based on the operating time and power of the heating element 7122 of the temperature measuring element 7125. At the same time, the control mechanism 9 controls the first beating unit 600 located at the sealing mechanism 7 to beating and shaping the packaging bag to ensure that the portion of the packaging bag to be sealed is in the correct position, facilitating subsequent sealing operations.

[0192] S72. When the control mechanism 9 obtains the packaging bag to be sealed and arrives between the two sealing blocks 7121, the control mechanism 9 controls the sealing drive 720 to work. Under the action of the sealing drive 720, each insulation block 711 and the sealing unit 712 moves in the same direction to realize the sealing operation. At the same time, the two groups of bag pressing units 713 that cooperate with each other make synchronous opposite movements to achieve the functions of beating and shaping.

[0193] After the patting and shaping and subsequent heat sealing operations are completed, the sealed packaging bags enter the finished product output mechanism.

[0194] 8. Finished product output mechanism

[0195] like Figure 10 As shown, the finished product discharge mechanism 8 includes a discharge baffle 81 and a discharge drive mechanism 82 that drives the discharge baffle 81 up and down. The discharge baffle 81 is located on the lower side of the inclined second conveyor belt 300, below the side baffle in this embodiment. Based on the signals from the front-end detection system indicating whether the corresponding packaging bags have been opened, the control mechanism 9 controls the discharge drive mechanism 82 to move the discharge baffle 81 up and down. When the discharge baffle 81 moves downward, either the unfinished product or the finished product slides out of the partition, passing over the discharge baffle 81. When the discharge baffle 81 moves upward, the other product is discharged from the end of the rotating second conveyor belt 300. Either the finished product or the unfinished product can be discharged through different channels. In this embodiment, the finished product drops through the discharge baffle 81, while the unfilled bags are discharged along the end of the second conveyor belt 300.

[0196] The above mechanisms can work independently or in combination as needed, and all belong to the technical solutions recorded in this application.

[0197] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A material automatic packaging system, characterized in that: It comprises a support frame (10) and a material supply mechanism (1) fixed on the support frame (10), A material supply mechanism (1) comprises a material turning and conveying unit (100), a first conveying unit (110), a second conveying unit (120), a first material shaping unit (130), and a first material pushing unit (140), and is used for supplying materials to be packaged; A packaging bag supply mechanism (2), used for supplying packaging bags; The bag transport mechanism (3) moves the packaging bags between different workstations; A material transfer and pushing mechanism (4) is used to transfer the material dropped from the material supply mechanism (1) and push the material into the packaging bag; A bag opening and filling mechanism (5) is used to open the packaging bag and put the material in; A shaping mechanism (6) shapes the mouth of the packaging bag in preparation for sealing; A sealing mechanism (7) for sealing the packaging bag; Finished product output mechanism (8), used for outputting finished products to the next process; A control mechanism (9) acquires signals from various sensors in the device and controls all driving operations; The bag transport mechanism (3) comprises a second conveyor belt (300) with a belt surface inclined to one side and a second conveyor drive (301) for driving the second conveyor belt (300) to rotate; partition plates (303) are arranged on the transport surface of the second conveyor belt (300), and the partition plates (303) are evenly spaced in sequence along the length direction of the transport surface, thereby forming a partition conveyor belt structure; the second conveyor belt (300) is inclined, and side support plates (302) are arranged on both sides of the belt surface of the second conveyor belt, and the outer sides of the side support plates (302) on the lower side of the belt surface are provided with bag bottom baffles (304) perpendicular to the belt surface, and the side support plates (302) on the higher side of the belt surface are parallel to the belt surface and extend to the upper part of the belt surface; A bag supporting drive for driving the bag supporting plate (305) to move up and down is provided below the side support plate (302), and the bag supporting plate (305) is located at the bottom (3111) of the bag; when the second suction cup unit (500) moves toward the middle to open the bag opening, the bag supporting plate (305) rises synchronously through the reserved hole at the side support plate (302), pushing the bottom of the bag to rise synchronously with the bag opening, thereby ensuring that the pushing path of the material pushing mechanism (4) is flush with the length direction of the bag each time; The material supply mechanism (1) includes a second conveying unit (120), the second conveying unit (120) includes a material temporary storage platform (126) for temporarily storing materials, and a discharge plate (125) is arranged on at least one side of the material temporary storage platform (126); a scraper plate (1231) is arranged on the upper surface of the material temporary storage platform (126) to push the material out of the upper surface and drop it onto the discharge plate (125); the discharge plate (125) can be opened and closed horizontally to form a material drop opening for convenient material drop, and a material buffer bin with an upward-facing bin opening for receiving materials is arranged directly below the drop opening, and the bin cavity of the material buffer bin and the lower plate surface of the discharge plate (125) cooperate to form a accommodating cavity for accommodating materials; both ends of the material buffer bin are provided with openings, and a first pushing unit (140) that acts on the head of the material to push the material out of the material buffer bin is arranged at one of the openings, and the other opening constitutes the discharge port of the material buffer bin; The material buffer bins are divided into two groups and are respectively placed on both sides of the material temporary storage platform (126); the scraper plates (1231) are perpendicular to the upper surface of the material temporary storage platform (126) and form symmetrical surfaces of the two groups of material buffer bins; the scraper plates (1231) are driven by the scraper drive (1232) to generate a reciprocating linear pushing action; the pushing direction of the first pushing unit (140) is perpendicular to the action direction of the scraper plates (1231).

2. The automatic material packaging system according to claim 1, characterized in that: The packaging bag supply mechanism (2) includes a bag bin (210) and a first suction cup unit (220), wherein the bag bin (210) includes a bin panel (2101), and a bag outlet hole through which the packaging bag can pass is provided on the bin panel (2101), and the first suction cup unit (220) includes a first suction cup (2201) and a first suction cup drive (2202), and the first suction cup (2201) sucks the packaging bag out of the bag outlet hole under the action of the first suction cup drive (2202).

3. The automatic material packaging system according to claim 1, characterized in that: The material pushing mechanism (4) includes a second pushing unit (420), which includes a push rod (4201) and a contact component (4202) fixed to the end of the push rod (4201) for directly contacting and pushing the material; the contact component (4202) includes a push piece (42021) directly fixed to the end of the push rod, and a protrusion (42022) is provided on the surface of the push piece (42021) facing the middle of the material.

4. The automatic material packaging system according to claim 1, characterized in that: The bag opening and filling mechanism (5) comprises a second suction cup unit (500) for initially pulling open the two sides of the bag opening of the packaging bag and a bag holding and discharging unit (510) for fully opening the bag opening of the packaging bag; the second suction cup units (500) are divided into two groups and are respectively placed on both sides of the bag opening of the packaging bag, and each group of second suction cup units (500) comprises a second suction cup group (501) and a second suction cup drive (502) for driving the suction cups at the second suction cup group (501) to move closer and farther away; the bag holding and discharging unit (510) comprises a first shell-shaped body (511) and a second shell-shaped body (512), and the first shell-shaped body (511) and the second shell-shaped body (512) are spaced apart. In the following two working states: when the first shell-shaped body (511) and the second shell-shaped body (512) are in the initial state, the first shell-shaped body (511) and the second shell-shaped body (512) are respectively placed on both sides of the bag opening of the packaging bag; when the first shell-shaped body (511) and the second shell-shaped body (512) are in the working state, the first shell-shaped body (511) and the second shell-shaped body (512) produce a hinged movement toward each other until the tips of the first shell-shaped body (511) and the second shell-shaped body (512) are inserted into the bag opening of the packaging bag that has been initially opened. At this time, the gap formed between the first shell-shaped body (511) and the second shell-shaped body (512) constitutes a blanking gap for blanking.

5. The automatic material packaging system according to claim 1, characterized in that: The shaping mechanism (6) includes a first bag opening shaping unit (620), the first bag opening shaping unit (620) includes a transverse shaping component (6210) and a longitudinal shaping component (6220), the transverse shaping component (6210) includes a transverse shaping support plate (6211), a transverse shaping portion (6212) on the transverse shaping support plate (6211) arranged in a mirror-symmetrical manner on the left and right, and a transverse shaping drive (62125), the transverse shaping portion (6212) includes a first rotating rod (62121), a second rotating rod (62122), a fixing seat (62123) of the transverse shaping plate (62124), a transverse shaping plate (62124), a transverse shaping plate (62125), and a transverse shaping plate (62125). The first rotating rod (62121) includes three rotating shafts arranged along the length direction, the rotating shaft at the upper end is connected to the transverse shaping drive (62125), and the rotating shaft at the upper middle portion is rotatably connected to the transverse shaping support plate (6211); the longitudinal shaping assembly (6220) includes a first longitudinal shaping plate (6225) and a second longitudinal shaping plate (6226) that can move toward and away from each other, and the plate surfaces of the first longitudinal shaping plate (6225) and the second longitudinal shaping plate (6226) are parallel to the transverse shaping plate (62124); the first longitudinal shaping plate (6225) is connected to the transverse shaping drive (62125) by the longitudinal shaping assembly (6220); The first support plate (62221) of the longitudinal shaping assembly (6220) is fixed to the vertical support plate (6221) of the longitudinal shaping assembly (6220), and a guide rod capable of reciprocating linear motion along the track surface of the vertical support plate (6221) is arranged on the vertical support plate (6221), and the guiding direction of the guide rod is perpendicular to the plate surface of the first longitudinal shaping plate (6225); the two ends of the guide rod are respectively fixed to the second support plate (62223) and the movable plate (6223) whose plate surfaces are parallel to each other, and the second longitudinal shaping plate (6226) is fixed to the movable plate (6223); the longitudinal shaping assembly (6220) also includes a longitudinal shaping drive (6224), The longitudinal shaping drive (6224) comprises a circular turntable (62241) whose axis is perpendicular to the surface of the vertical support plate (6221); a third rotating shaft (62243) and a fourth rotating shaft (62244) are arranged on the surface of the circular turntable (62241); and a line connecting the hinge points of the third rotating shaft (62243) and the fourth rotating shaft (62244) relative to the circular turntable (62241) passes through the axis of the circular turntable (62241); the third rotating shaft (62243) and the fourth rotating shaft (62244) are respectively hinged to the second support plate (62223) and the movable plate (6223), and the hinge axes are parallel to each other.

6. The automatic material packaging system according to claim 1, characterized in that: The sealing mechanism (7) includes a bag pressing and sealing assembly (710) located on both sides of the bag opening of the packaging bag, the bag pressing and sealing assembly (710) includes a sealing block (7121) and a sealing drive (720) for driving the sealing block (7121) to generate reciprocating linear movement; a constant temperature element (7122) is arranged in the sealing block (7121), and the sealing surface of the sealing block (7121) facing the packaging bag is covered with a high-temperature anti-sticking tape (7124); the bag pressing and sealing assembly (710) also includes a high-temperature resistant rubber plate (7123), and the high-temperature resistant rubber plate (7123) is sandwiched between the sealing surface and the high-temperature anti-sticking tape (7124).

7. The automatic material packaging system according to claim 1, characterized in that: A drop hole is formed through the bag bottom baffle (304), and the finished product output mechanism (8) includes a discharge baffle (81) for opening and closing the drop hole. The discharge baffle (81) is driven by a discharge drive mechanism (82) to generate corresponding opening and closing actions.

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