A modular bag-feeding packaging machine and its packaging method

Abstract

The present invention relates to the technical field of packaging machinery, and discloses a modular bag-feeding packaging machine, which includes a frame. A bag storage mechanism is fixed to the upper end of the frame. A bag separating mechanism is arranged at the front end of the bag storage mechanism. A bag feeding mechanism is arranged below the bag separating mechanism on the frame. A bag opening mechanism is arranged behind the bag feeding mechanism on the frame. Mounting plates are fixed on both sides of the bag opening mechanism, and the mounting plates are slidably connected to the frame. A displacement driving mechanism for driving the bag opening mechanism to move back and forth is arranged on the frame; A filling mechanism is arranged at the position between the lower side of the bag storage mechanism and the upper side of the bag opening mechanism. A sealing mechanism is arranged below the bag opening mechanism on the frame; The bag feeding mechanism and the sealing mechanism are both detachably connected to the frame. The present invention has the beneficial effects of compact structure, reasonable layout, small occupied space, and convenient maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging machinery, and in particular to a modular bag-feeding packaging machine and its packaging method. Background Art

[0002] A bag-feeding packaging machine is a kind of packaging machinery, generally including a bag storage and separation mechanism, a bag opening and filling mechanism, and a bag sealing and discharging mechanism. The packaging bag enters the bag opening and filling mechanism after passing through the bag storage and separation mechanism. After the packaging bag is opened, filling is carried out. After filling, it enters the bag sealing and discharging mechanism for sealing and then conveys the packaging bag to the conveyor belt. The overall structure of the bag-feeding packaging machine is relatively complex and there are a large number of components. Currently, the common bag-feeding packaging machines either adopt a horizontal structure or a vertical structure. However, the overall volume is relatively large and occupies a large space. Moreover, each mechanism is fixed inside the frame. When any one of the mechanisms fails and needs to be repaired, it is necessary to disassemble other surrounding mechanisms together. After the repair, all of them need to be reinstalled, which is not convenient for maintenance. Summary of the Invention

[0003] In order to solve the above problems existing in the bag-feeding packaging machine in the prior art, the present invention provides a modular bag-feeding packaging machine and its packaging method with a compact structure, reasonable layout, small occupied space, and more convenient maintenance.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A modular bag-feeding packaging machine includes a frame. A bag storage mechanism is fixed at the upper end of the frame. A bag separation mechanism is arranged at the front end of the bag storage mechanism. A bag feeding mechanism is arranged below the bag separation mechanism on the frame. A bag opening mechanism is arranged behind the bag feeding mechanism on the frame. Mounting plates are fixed on both sides of the bag opening mechanism, and the mounting plates are slidably connected to the frame. A displacement driving mechanism for driving the bag opening mechanism to move back and forth is arranged on the frame; A filling mechanism is arranged between the lower side of the bag storage mechanism and the upper side of the bag opening mechanism. A sealing mechanism is arranged below the bag opening mechanism on the frame; The bag feeding mechanism and the sealing mechanism are both detachably connected to the frame. The bag storage mechanism and the filling mechanism are fixedly connected to the frame (detachable when necessary). The bag feeding mechanism and the sealing mechanism are detachably connected to the frame. The bag opening mechanism can move back and forth under the action of the displacement driving mechanism to adapt to the spatial layout between the filling mechanism and the bag feeding mechanism; The overall structure is compact, the spatial layout is reasonable, the occupied space is small, and each mechanism adopts a modular structure and can be disassembled and repaired separately, greatly improving the convenience of maintenance.

[0006] Preferably, the bag storage mechanism includes a number of bag storage grooves. A bag guiding channel is provided at the outlet end of each bag storage groove, and a limiting stop bar is provided between the inner side of the outlet end of each bag storage groove and the bag guiding channel. The bag separating mechanism includes a bag separating plate and a connecting bracket. A number of groups of bag sucking nozzles A corresponding to the outlet ends of the bag storage grooves one by one are provided on the bag separating plate, and a bag separating driving mechanism for driving the movement of the bag separating plate is further provided on the connecting bracket. The bags are stored in the bag storage grooves. Each time the bag separating driving mechanism operates, a bag sucking nozzle A sucks one bag and sends the bag into the bag guiding channel, and the bag falls into the bag feeding mechanism along the bag guiding channel.

[0007] Preferably, connecting seats are provided on both sides of the bag feeding mechanism. A sliding seat is fixed on the outer side of each connecting seat, and sliding rails slidably connected to the sliding seats one by one are fixed on both sides of the machine frame. A locking pin is provided on the sliding seat, and the sliding seat, the sliding rail and the locking pin constitute the detachable connection. The bag feeding mechanism and the machine frame can adjust the lateral position of the bag feeding mechanism by moving back and forth through the sliding seat to meet the requirements of the space layout, and the bag feeding mechanism can be detached and maintained separately.

[0008] Preferably, the bag feeding mechanism includes two side plates and a guiding plate fixed between the side plates. A number of bag feeding components are provided on the side of the guiding plate facing the bag opening mechanism, and a bag pushing driving mechanism is provided on the guiding plate. The bag pushing driving mechanism drives the bag feeding components to push the bags into the bag opening mechanism.

[0009] Preferably, a vertical sliding rail is provided on the inner side of the connecting seat, a vertical sliding block slidably matched with the vertical sliding rail is provided on the outer side of the side plate, a rotating seat is fixed on the connecting seat, a vertical screw rod is provided on the rotating seat, a hand wheel is fixed at one end of the screw rod, a screw sleeve assembly is fixed on the side plate, and the other end of the screw rod passes through the screw sleeve assembly and is in threaded connection with the screw sleeve assembly. The height position of the bag feeding mechanism in the machine frame can be adjusted by the hand wheel to meet the positional relationship with other mechanisms, and the adjustment is very convenient.

[0010] Preferably, the bag feeding component includes a bag sucking nozzle B and limiting baffles on both sides of the bag sucking nozzle B. Support columns are fixed at the lower ends of the limiting baffles, a retaining edge is provided at the outer edge of the limiting baffles, and an inclined guiding plate is provided at the upper ends of the limiting baffles. After the bag sucking nozzle B in the bag feeding component sucks and positions the bag, the bag is pushed into the bag opening mechanism by the bag pushing driving mechanism.

[0011] Preferably, an upper driving mechanism is fixed to the middle part of the guiding plate. An upper connecting plate is fixed to the shaft end of the upper driving mechanism. Upper supporting rods are fixed to the upper connecting plate at the lower side positions of each bag feeding assembly. A lower driving mechanism is arranged between the lower ends of the two side plates. A lower connecting plate is fixed to the shaft end of the lower driving mechanism. A lower supporting rod is fixed to the lower connecting plate at the lower side position of the sealing mechanism. After the bag feeding assembly pushes the bag into the bag opening mechanism and then resets, the bottom of the bag is supported by the upper supporting rod at this time. After the bag is filled, the lower supporting rod retracts, and the bag enters the sealing mechanism under the action of gravity. When the subsequent bag enters the sealing mechanism, the bottom of the bag is supported by the lower supporting rod. After the bag is sealed, the lower supporting rod retracts, and the bag enters the bag discharging conveyor along the bag guiding plate under the action of gravity.

[0012] Preferably, the displacement driving mechanism includes a driving shaft arranged at the rear side of the machine frame. Active wheels are fixed to both ends of the driving shaft. Driven wheels corresponding to the active wheels one by one are arranged at the front side of the machine frame. A transmission belt is arranged between the active wheel and the driven wheel. The transmission belt is fixedly connected to the mounting plate through a connecting piece. A rotary driving mechanism is arranged at one end of the driving shaft. The rotary driving mechanism drives the bag opening mechanism to move back and forth horizontally along the machine frame through transmission, so as to realize the reasonable docking of the spatial positions of the bag opening mechanism and the filling mechanism.

[0013] Preferably, the bag opening mechanism includes a plurality of bag positioning seats arranged between the mounting plates. A lifting frame is arranged between the mounting plates. The two ends of the lifting frame are connected to the mounting plates through a lifting driving mechanism. Bag opening brackets controlled to open and close by bag opening cylinders are arranged on both sides of the lifting frame. A plurality of groups of bag opening suction nozzles corresponding to the bag positioning seats one by one are arranged on both bag opening brackets. Filling notches corresponding to the bag positioning seats one by one are arranged on the lifting frame. The filling mechanism includes a plurality of liftable filling heads. When the bag opening mechanism opens the bag and moves it to align the filling notch with the filling head, the filling head extends into the bag through the filling notch for filling.

[0014] Preferably, the sealing mechanism includes an upper base plate, upper sliding seats fixed to both sides of the upper base plate. The upper sliding seats are slidably connected to the machine frame. A plurality of sealing components driven by a sealing driving mechanism are arranged on the upper base plate. A sorting mechanism is arranged at the lower side of the sealing mechanism. The sorting mechanism includes a lower base plate, lower sliding seats fixed to both ends of the lower base plate. The lower sliding seats are slidably connected to the machine frame. Positioning pins are arranged on the lower sliding seats. The lower base plate and the upper base plate are locked through a locking component. The sealing mechanism and the sorting mechanism are independently installed and disassembled from the machine frame. At the same time, in order to increase the connection stability between the sealing mechanism and the sorting mechanism, the sealing mechanism and the sorting mechanism are locked through a locking component.

[0015] Preferably, the sealing assembly includes a sealing component driven to open and close by a sealing driving mechanism; a number of sorting and positioning seats are provided in the sorting mechanism, and sorting components driven to open and close by a sorting driving mechanism are provided on the front and rear sides of each sorting and positioning seat; a bag guiding plate is provided at the lower end of the sorting and positioning seat, and a bag discharging conveyor line is provided at the bottom of the frame below the bag guiding plate.

[0016] A packaging method for a modular bag-feeding packaging machine includes the following steps: a. Bags are stored in the bag storage slots of the bag storage mechanism. The bag suction nozzle A in the bag suction mechanism approaches and sucks a bag under the action of the bag separation driving mechanism, and moves the bag into the bag guiding channel and then releases it; b. The bag enters the bag feeding assembly in the bag feeding mechanism under the action of gravity and is sucked by the bag suction nozzle B. The bag feeding cylinder acts to push the bag into the bag opening mechanism; the bag opening nozzle in the bag opening mechanism descends and sucks both sides of the bag to open the bag, and at the same time, the displacement driving mechanism moves the entire bag opening mechanism to directly below the filling mechanism; c. The filling head in the filling mechanism fills the opened bag. When the bag reaches above the sealing mechanism after filling, the bag opening nozzle releases the bag, and the bag falls into the sealing mechanism under the action of gravity and is positioned; d. The sealing mechanism seals the bag, and the sealed bag falls into the bag discharging conveyor line along the bag guiding plate under the action of gravity.

[0017] Preferably, in step b, when the bag is in the bag feeding mechanism and the bag opening mechanism, the bottom of the bag is supported by the upper support rod; in step c, after the bag is filled, the upper support rod retracts under the action of the upper driving mechanism, and the bottom of the bag loses the support of the upper support rod and falls into the sealing mechanism under the action of gravity. The bottom of the bag entering the sealing mechanism is supported by the lower support rod; in step d, after the bag is sealed, the lower driving mechanism drives the lower support rod to retract, and the bag falls onto the bag discharging conveyor line after losing support. The bag is very stable in positioning in each link and is not easy to fall off.

[0018] Preferably, in step d, before the bag enters the sealing mechanism for sealing, the sorting mechanism below the sealing mechanism squeezes out the air inside the bag and shapes it, and then seals it through the sealing mechanism. The sorting mechanism discharges the air in the bag and shapes it, sorts the bag before sealing, making the sealing smoother and more stable, and also ensuring the packaging consistency of each product.

[0019] Therefore, the present invention has the beneficial effects of a compact structure, reasonable layout, small occupied space, and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention.

[0021] Figure 2 is Figure 1 the front view of

[0022] Figure 3 It is a schematic structural diagram of the bag storage mechanism.

[0023] Figure 4 It is an installation schematic diagram of the bag feeding mechanism and the bag opening mechanism.

[0024] Figure 5 It is a schematic diagram of the separated state of the bag feeding mechanism and the bag opening mechanism.

[0025] Figure 6 It is a schematic structural diagram of the bag feeding mechanism.

[0026] Figure 7 It is Figure 6 a partial enlarged schematic diagram at position A in

[0027] Figure 8 It is a schematic structural diagram of the filling mechanism.

[0028] Figure 9 It is an installation schematic diagram of the sealing mechanism and the sorting mechanism.

[0029] Figure 10 It is a schematic diagram of the separated state of the sealing mechanism and the sorting mechanism.

[0030] Figure 11 It is Figure 10 a schematic structural diagram from another perspective of

[0031] In the figure: frame 1, bag storage mechanism 2, bag storage tank 20, bag guiding channel 21, limiting bar 22, bag separating mechanism 3, bag separating plate 30, connecting bracket 31, bag sucking nozzle A32, bag separating driving mechanism 33, bag feeding mechanism 4, side plate 40, lower driving mechanism 400, lower connecting plate 401, lower support rod 402, guiding plate 41, upper driving mechanism 410, upper connecting plate 411, upper support rod 412, bag feeding assembly 44, bag sucking nozzle B440, limiting baffle 441, support column 442, edge stop 443, guiding plate 444, bag pushing driving mechanism 45, bag opening mechanism 5, bag positioning seat 50, lifting frame 51, lifting driving mechanism 52, bag opening bracket 53, bag opening sucking nozzle 54, filling notch 55, mounting plate 6, displacement driving mechanism 7, driving shaft 70, driving wheel 71, driven wheel 72, transmission belt 73, connecting piece 74, filling mechanism 8, filling head 80, sealing mechanism 9, upper base plate 90, upper sliding seat 91, sealing driving mechanism 92, sealing assembly 93, sealing part 930, connecting seat 10, vertical slide rail 110, rotating seat 111, screw 112, hand wheel 113, screw sleeve assembly 114, sliding seat 11, locking pin 12, sorting mechanism 13, lower base plate 130, lower sliding seat 131, positioning pin 132, sorting positioning seat 133, sorting driving mechanism 134, sorting part 135, bag guiding plate 136, locking assembly 14, bag output conveyor 15. Detailed implementation mode

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation modes:

[0033] As Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 9 shown, a modular bag-feeding packaging machine includes a frame 1, a bag storage mechanism 2 is fixed at the upper end of the frame 1, a bag separating mechanism 3 is arranged at the front end of the bag storage mechanism 2, a bag feeding mechanism 4 is arranged below the bag separating mechanism 3 on the frame 1, a bag opening mechanism 5 is arranged behind the bag feeding mechanism 4 on the frame 1, mounting plates 6 are fixed on both sides of the bag opening mechanism 5, the mounting plates 6 are slidably connected to the frame, and a displacement driving mechanism 7 for driving the bag opening mechanism to move back and forth is arranged on the frame 1; a filling mechanism 8 is arranged at the position between the lower side of the bag storage mechanism 2 and the upper side of the bag opening mechanism, and a sealing mechanism 9 is arranged below the bag opening mechanism on the frame 1; the bag feeding mechanism and the sealing mechanism are both detachably connected to the frame.

[0034] As Figure 3 shown, the bag storage mechanism 2 includes a plurality of inclined bag storage grooves 20, a bag guiding channel 21 is arranged at the outlet end of each bag storage groove, and a limiting stop bar 22 is arranged between the outlet end of each bag storage groove 20 and the bag guiding channel; the bag separating mechanism 3 includes a bag separating plate 30 and a connecting bracket 31, a plurality of groups of bag sucking nozzles A32 corresponding to the outlet ends of the bag storage grooves are arranged on the bag separating plate 30, and a bag separating driving mechanism 33 for driving the bag separating plate to move is further arranged on the connecting bracket 31.

[0035] As Figure 4 、 Figure 5 and Figure 6 shown, connecting seats 10 are arranged on both sides of the bag feeding mechanism 4, a sliding seat 11 is fixed on the outside of the connecting seat 10, sliding rails 100 corresponding to the sliding seats are fixed on both sides of the frame 1, a locking pin 12 is arranged on the sliding seat 11, and the sliding seat 11, the sliding rail 100 and the locking pin 12 form a detachable connection; the bag feeding mechanism 4 includes two side plates 40 and a guiding plate 41 fixed between the side plates, a plurality of bag feeding components 44 are arranged on the side of the guiding plate 41 facing the bag opening mechanism, and a bag pushing driving mechanism 45 is arranged on the guiding plate 41, and the bag pushing driving mechanism 45 drives the bag feeding components to push the bags into the bag opening mechanism.

[0036] As Figure 7 shown, the bag feeding component 44 includes a bag sucking nozzle B440, limiting baffle plates 441 located on both sides of the bag sucking nozzle B, a support column 442 is fixed at the lower end of the limiting baffle plate 441, a stop edge 443 is arranged on the outer edge of the limiting baffle plate 441, and an inclined guiding plate 444 is arranged at the upper end of the limiting baffle plate.

[0037] As Figure 5 and Figure 6 shown, a vertical slide rail 110 is provided inside the connecting seat 10, and a vertical slider that is slidably engaged with the vertical slide rail is provided outside the side plate 40. A rotating seat 111 is fixed to the upper end of the connecting seat 10. A vertical screw rod 112 is provided on the rotating seat 111. A hand wheel 113 is fixed to the upper end of the screw rod. A screw sleeve assembly 114 is fixed to the side plate. The lower end of the screw rod passes through the screw sleeve assembly and forms a threaded connection with the screw sleeve assembly; rotating the hand wheel can adjust the height of the bag feeding mechanism. An upper driving mechanism 410 is fixed to the middle part of the guide plate 41. An upper connecting plate 411 is fixed to the shaft end of the upper driving mechanism 410. Upper support rods 412 are fixed to the lower side positions of each bag feeding assembly on the upper connecting plate 411; A lower driving mechanism 400 is provided between the lower ends of the two side plates 40. A lower connecting plate 401 is fixed to the shaft end of the lower driving mechanism 400. A lower support rod 402 is fixed to the lower side position of the sealing mechanism on the lower connecting plate 401.

[0038] As Figure 4 and Figure 5 shown, the displacement driving mechanism 7 includes a driving shaft 70 provided at the rear side of the machine frame. Active wheels 71 are fixed to both ends of the driving shaft 70. Driven wheels 72 corresponding to the active wheels one by one are provided at the front side of the machine frame 1. A transmission belt 73 is provided between the active wheel 71 and the driven wheel 72. The transmission belt 73 is fixedly connected to the mounting plate 6 through a connecting member 74. A rotary driving mechanism is provided at one end of the driving shaft; The bag opening mechanism 5 includes a plurality of bag positioning seats 50 provided between the mounting plates 6. A lifting frame 51 is provided between the mounting plates. Both ends of the lifting frame are connected to the mounting plate 6 through a lifting driving mechanism 52. Bag opening brackets 53 that are controlled to open and close by bag opening cylinders are provided on both sides of the lifting frame 51. A plurality of groups of bag opening suction nozzles 54 corresponding to the bag positioning seats one by one are provided on both bag opening brackets; A filling notch 55 corresponding to the bag positioning seat is provided on the lifting frame 51.

[0039] As Figure 8 shown, the filling mechanism 8 includes a plurality of liftable filling heads 80. When the bag opening mechanism 5 opens the bag and moves it to align the filling notch with the filling head, the filling head passes through the filling notch and extends into the bag for filling.

[0040] As Figure 9 、 Figure 10 and Figure 11As shown, the sealing mechanism 9 includes an upper substrate 90 and upper sliding seats 91 fixed on both sides of the upper substrate. The upper sliding seats 91 are slidably connected to the frame 1. A number of sealing components 93 driven by a sealing driving mechanism 92 are provided on the upper substrate 90. The sealing component 93 includes a sealing part 930 driven by the sealing driving mechanism 92 to open and close. The sealing part can seal the bag by heat sealing and ironing, or can also seal the bag by cold sealing; A sorting mechanism 13 is provided on the lower side of the sealing mechanism 9. The sorting mechanism 13 includes a lower substrate 130 and lower sliding seats 131 fixed at both ends of the lower substrate. The lower sliding seats are slidably connected to the frame. Positioning pins 132 are provided on the lower sliding seats 131. The lower substrate 130 and the upper substrate 90 are locked by a locking component 14. A number of sorting positioning seats 133 are provided in the sorting mechanism 13. Sorting parts 135 driven by a sorting driving mechanism 134 to open and close are provided on the front and rear sides inside each sorting positioning seat 133; A bag guiding plate 136 is provided at the lower end of the sorting positioning seat 133, as Figure 1 and Figure 2 shown. A bag discharging conveyor line 15 is provided on the lower side of the bottom of the frame 1 and located below the bag guiding plate.

[0041] In this embodiment, the bag separating driving mechanism, the bag pushing driving mechanism, the upper driving mechanism, the lower driving mechanism, the lifting driving mechanism, the sealing driving mechanism, and the sorting driving mechanism all adopt any one of air cylinders or electric cylinders; The rotation driving mechanism in this embodiment adopts a motor.

[0042] A packaging method of a modular bag feeding packaging machine includes the following steps:

[0043] a. The bags are stored in the bag storage grooves of the bag storage mechanism. The bag sucking nozzle A in the bag sucking mechanism approaches and sucks the bags under the action of the bag separating driving mechanism, and moves the bags into the bag guiding channel and then releases them;

[0044] b. The bags enter the bag feeding components in the bag feeding mechanism along the bag guiding channel under the action of gravity and are sucked by the bag sucking nozzle B. The bag feeding cylinder acts to push the bags into the bag opening mechanism, and the bottom of the bags is supported by the upper support rod; The bag opening nozzle in the bag opening mechanism descends and sucks both sides of the bag to open the bag. At the same time, the displacement driving mechanism moves the entire bag opening mechanism to directly below the filling mechanism; c. The filling head in the filling mechanism fills the opened bags. When the bags reach above the sealing mechanism after filling, the bag opening nozzle releases the bags, and the upper support rod retracts under the action of the upper driving mechanism. After the bottom of the bag loses the support of the upper support rod, it falls into the sealing mechanism under the action of gravity and is positioned, and the bottom of the bag is supported by the lower support rod; d. The sorting mechanism on the lower side of the sealing mechanism squeezes out the air inside the bags and shapes them, the sealing mechanism seals the bags, the lower driving mechanism drives the lower support rod to retract, and the sealed bags fall along the bag guiding plate into the bag discharging conveyor line under the action of gravity.

[0045] The present invention has the beneficial effects of being structurally compact, reasonably laid out, occupying a small space, and being convenient for maintenance and repair.

[0046] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A modular bag-feeding packaging machine, comprising a frame, characterized in that, A bag storage mechanism is fixed to the upper end of the frame. A bag separating mechanism is arranged at the front end of the bag storage mechanism. A bag feeding mechanism is arranged below the bag separating mechanism on the frame. A bag opening mechanism is arranged behind the bag feeding mechanism on the frame. Mounting plates are fixed on both sides of the bag opening mechanism, and the mounting plates are slidably connected to the frame. A displacement driving mechanism for driving the bag opening mechanism to move back and forth is arranged on the frame. A filling mechanism is arranged between the lower side of the bag storage mechanism and the upper side of the bag opening mechanism. A sealing mechanism is arranged below the bag opening mechanism on the frame. The bag feeding mechanism and the sealing mechanism are both detachably connected to the frame. The sealing mechanism includes an upper substrate and upper sliding seats fixed on both sides of the upper substrate. The upper sliding seats are slidably connected to the frame. A plurality of sealing components driven by a sealing driving mechanism are arranged on the upper substrate. A sorting mechanism is arranged below the sealing mechanism. The sorting mechanism includes a lower substrate and lower sliding seats fixed at both ends of the lower substrate. The lower sliding seats are slidably connected to the frame. Positioning pins are arranged on the lower sliding seats. The lower substrate and the upper substrate are locked by a locking component. Connection seats are arranged on both sides of the bag feeding mechanism. Sliding seats are fixed on the outer sides of the connection seats. Slide rails slidably connected to the sliding seats one by one are fixed on both sides of the frame. Locking pins are arranged on the sliding seats. The sliding seats, the slide rails and the locking pins constitute the detachable connection. The bag feeding mechanism includes two side plates and a guiding plate fixed between the side plates. A plurality of bag feeding components are arranged on the side of the guiding plate facing the bag opening mechanism. A bag pushing driving mechanism is arranged on the guiding plate. The bag pushing driving mechanism drives the bag feeding components to push the bags into the bag opening mechanism. A vertical slide rail is arranged inside the connection seat. A vertical slider slidably matched with the vertical slide rail is arranged on the outer side of the side plate. A rotating seat is fixed on the connection seat. A vertical screw rod is arranged on the rotating seat. A hand wheel is fixed at one end of the screw rod. A screw sleeve assembly is fixed on the side plate. The other end of the screw rod passes through the screw sleeve assembly and is in threaded connection with the screw sleeve assembly. The bag feeding component includes a bag suction nozzle B and limiting baffles on both sides of the bag suction nozzle B. Support columns are fixed at the lower ends of the limiting baffles. A baffle edge is arranged on the outer edge of the limiting baffle. An inclined guiding plate is arranged at the upper end of the limiting baffle.

2. The modular bag-feeding packaging machine according to claim 1, characterized in that The bag storage mechanism includes a plurality of bag storage grooves. A bag guiding channel is arranged at the outlet end of each bag storage groove. A limiting bar is arranged between the inner side of the outlet end of each bag storage groove and the bag guiding channel. The bag separating mechanism includes a bag separating plate and a connecting bracket. A plurality of groups of bag suction nozzles A corresponding to the outlet ends of the bag storage grooves one by one are arranged on the bag separating plate. A bag separating driving mechanism for driving the bag separating plate to move is further arranged on the connecting bracket.

3. A modular bag-feeding packaging machine according to claim 1, wherein An upper driving mechanism is fixed at the middle part of the guiding plate. An upper connecting plate is fixed at the shaft end of the upper driving mechanism. Upper support rods are fixed at the lower side positions of each bag feeding component on the upper connecting plate. A lower driving mechanism is arranged between the lower ends of the two side plates. A lower connecting plate is fixed at the shaft end of the lower driving mechanism. Lower support rods are fixed at the lower side positions of the sealing mechanism on the lower connecting plate.

4. A modular bag-feeding packaging machine according to claim 1, characterized in that The described displacement driving mechanism includes a driving shaft provided at the rear side of the frame. Active wheels are fixed to both ends of the driving shaft. Driven wheels corresponding to the active wheels one by one are provided at the front side of the frame. A transmission belt is provided between the active wheel and the driven wheel. The transmission belt is fixedly connected to the mounting plate through a connecting member. A rotary driving mechanism is provided at one end of the driving shaft.

5. The modular bag-feeding packaging machine according to claim 1, wherein, The bag opening mechanism includes a number of bag positioning seats provided between the mounting plates. A lifting frame is provided between the mounting plates. Both ends of the lifting frame are connected to the mounting plates through a lifting driving mechanism. Bag opening brackets controlled to open and close by bag opening cylinders are provided on both sides of the lifting frame. A number of groups of bag opening suction nozzles corresponding to the bag positioning seats one by one are provided on both bag opening brackets. A filling notch corresponding to the bag positioning seat one by one is provided on the lifting frame. The filling mechanism includes a number of liftable filling heads. When the bag opening mechanism opens the bag and moves it to align the filling notch with the filling head, the filling head extends into the bag through the filling notch for filling.

6. The modular bag-feeding packaging machine according to claim 1, characterized in that, The described sealing assembly includes a sealing component driven to open and close by a sealing driving mechanism. A number of sorting positioning seats are provided in the sorting mechanism. Sorting members driven to open and close by a sorting driving mechanism are provided on the front and rear sides inside each sorting positioning seat. A bag guiding plate is provided at the lower end of the sorting positioning seat. A bag output conveyor line is provided at the bottom of the frame below the bag guiding plate.

7. A packaging method for the modular bag-feeding packaging machine according to any one of claims 1-6, characterized in that, It includes the following steps: a. Bags are stored in the bag storage slots of the bag storage mechanism. The bag suction nozzle A in the bag sorting mechanism approaches and sucks a bag under the action of the bag sorting driving mechanism, moves the bag into the bag guiding channel and then releases it. b. The bag enters the bag feeding assembly in the bag feeding mechanism under the action of gravity and is sucked by the bag suction nozzle B. The bag pushing driving mechanism acts to push the bag into the bag opening mechanism. The bag opening suction nozzles in the bag opening mechanism descend, suck both sides of the bag and open the bag. At the same time, the displacement driving mechanism moves the entire bag opening mechanism to directly below the filling mechanism. c. The filling heads in the filling mechanism fill the opened bag. When the bag reaches above the sealing mechanism after filling, the bag opening suction nozzles release the bag, and the bag falls into the sealing mechanism under the action of gravity and is positioned. d. The sealing mechanism seals the bag, and the sealed bag falls into the bag output conveyor line along the bag guiding plate under the action of gravity.

8. A packaging method of a modular bag-feeding packaging machine according to claim 7, characterized in that, In step b, when the bag is in the bag feeding mechanism and the bag opening mechanism, the bottom of the bag is supported by the upper support rod. In step c, after the bag is filled, the upper support rod retracts under the action of the upper driving mechanism, and the bottom of the bag loses the support of the upper support rod and falls into the sealing mechanism under the action of gravity. The bottom of the bag entering the sealing mechanism is supported by the lower support rod. In step d, after the bag is sealed, the lower driving mechanism drives the lower support rod to retract, and the bag falls onto the bag output conveyor line after losing support.

9. The packaging method of a modular bag-feeding packaging machine according to claim 7, characterized in that, In step d, before the bag enters the sealing mechanism for sealing, the sorting mechanism below the sealing mechanism squeezes out the air inside the bag and shapes it, and then seals it through the sealing mechanism.

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