Packaging equipment for filling and sealing machines

Abstract

The present invention discloses a packaging device for a filling and sealing machine, which relates to the technical field of packaging equipment. The present invention comprises a conveyor bracket, on which a longitudinal chain conveyor is installed, and further comprises a bag feeding control mechanism, a packaging bag follow-up opening control mechanism, a packaging bag adsorption mechanism, a packaging feeding mechanism, a packaging bag exhaust and closing mechanism, and a sealing device. The bag feeding control mechanism comprises a control box, a flip guide groove is provided on the rear side of the control box, a ninety-degree flip guide assembly is installed in the control box, and the ninety-degree flip guide assembly is connected to a control power assembly; the packaging bag follow-up opening control mechanism is installed on the top of the rear side of the control box; the packaging device for the filling and sealing machine has smooth packaging action, which is conducive to improving packaging efficiency. After the product is filled, the upper half of the plastic packaging bag can be squeezed to exhaust air, and then sealed, so as to avoid excessive air in the plastic packaging bag after sealing, and to avoid mutual squeezing during stacking and transportation to cause the plastic packaging bag to rupture.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, in particular to packaging equipment for a filling and sealing machine. Background Art

[0002] Fill-and-seal machines use packaging equipment to pick up and expand bags, then convey them to a hopper. The bags are then filled with the product to be packaged, and finally sealed to ensure the seal and integrity of the product during storage and transportation. When packaging plastic bags, the process of picking up, expanding, and conveying the bags to the hopper requires a large number of drive components. When the bags are directly sealed after filling, they contain a large amount of air, which can cause the bags to rupture due to compression during stacking and transportation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a packaging equipment for a filling and sealing machine, which adopts the control cylinder in the bag feeding control mechanism to cooperate with the suction cup in a packaging bag adsorption mechanism to realize the picking up and feeding operations of the plastic packaging bag, and adopts the opening cylinder to cooperate with the suction cup in the other packaging bag adsorption mechanism to realize the opening operation of the plastic packaging bag, the control cylinder is shortened, and the two packaging bag adsorption mechanisms are driven to move upward, so that the opened plastic packaging bag moves upward, and the packaging bag opening fixing mechanism is cooperated to clamp and fix the bag opening of the plastic packaging bag to fill the product, and the use of fewer cylinders can realize the actions of picking up, opening, and sending the packaging bag to the bottom of the hopper, and the packaging action is smooth, which is conducive to improving the packaging efficiency. After filling the product, the upper half of the plastic packaging bag can be squeezed to exhaust the air, and then sealed to avoid excessive air in the plastic packaging bag after sealing, and to avoid mutual squeezing during stacking and transportation to cause the plastic packaging bag to rupture, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a packaging device for a filling and sealing machine, comprising a conveyor bracket, a longitudinal chain conveyor mounted on the conveyor bracket, and further comprising:

[0005] The bag feeding control mechanism includes a control box, a flip guide groove, a 90-degree flip guide assembly and a control power assembly. The control box is located at the right rear of the conveyor bracket. The rear side of the control box is provided with a flip guide groove. The 90-degree flip guide assembly is installed in the control box, and the 90-degree flip guide assembly is connected to the control power assembly.

[0006] The packaging bag follow-up opening control mechanism is installed on the top of the rear side of the control box;

[0007] The packaging bag adsorption mechanism is installed at the front end of the packaging bag follow-up opening control mechanism and the 90-degree turning guide assembly;

[0008] The packaging feeding mechanism is installed above the rear end of the conveyor bracket, and the packaging bag opening fixing mechanism is installed at the bottom of the packaging feeding mechanism;

[0009] The packaging bag exhaust and closing mechanism is installed above the front end of the conveyor bracket, and a sealing device is installed at the bottom of the packaging bag exhaust and closing mechanism.

[0010] Furthermore, the flip guide groove includes a vertical guide groove for supporting the bag, a direction-changing oblique guide groove and a vertical guide groove for picking up the bag. A vertical guide groove for picking up the bag is opened at the bottom left end of the rear side of the control box, and a vertical guide groove for supporting the bag is opened at the center of the top of the rear side of the control box. The bottom of the vertical guide groove for supporting the bag is connected to the top of the vertical guide groove for picking up the bag through a direction-changing oblique guide groove that is tilted lower on the left and higher on the right.

[0011] Furthermore, the control power assembly includes a control cylinder, a vertical rail 1 is installed on the right side of the control box, the vertical rail 1 is slidably connected to a slide 1, the slide 1 is fixedly connected to the right end of the control horizontal plate, and a vertical control cylinder is installed on the top of the control box, and the telescopic end of the bottom of the control cylinder extends into the control box and is connected to the top of the control horizontal plate.

[0012] Furthermore, the ninety-degree flip guide assembly includes a flip shaft, the left end of the control horizontal plate is rotatably connected to the longitudinal flip shaft, the rear end of the flip shaft is fixedly connected to one end of the flip plate, and the rear side of the other end of the flip plate is fixedly connected to the front end of the support shaft, the rear end of the support shaft extends through the flip guide groove to the rear outside of the control box, the part of the support shaft located in the flip guide groove is sleeved with a guide sleeve, and the guide sleeve is slidably connected to the flip guide groove.

[0013] The control cylinder extends, pushing the control cross plate to move down along the vertical rail with the help of the slide, and the control cross plate drives the flip shaft to move down. At this time, the flip plate begins to be in an inclined state with the left lower and the right higher. At this time, the guide sleeve on the supporting shaft slides down along the direction-changing oblique guide groove. During this process, the flip shaft rotates counterclockwise, and the flip plate and the flip shaft continue to move down. When the guide sleeve on the supporting shaft enters the top of the bag picking vertical guide groove, the flip plate is in a vertical state, and the flip shaft rotates ninety degrees counterclockwise. At this time, the packaging bag adsorption mechanism at the front end of the flip shaft faces downward, and the packaging bag adsorption mechanism at the front end of the flip shaft works to adsorb the upper left end of the plastic packaging bag on the plastic packaging bag feeding plate;

[0014] The control cylinder shortens, driving the control cross plate and the slide to move up along the vertical rail, and the guide sleeve on the supporting shaft moves up in the bag picking vertical guide groove. When the guide sleeve on the supporting shaft enters the bottom of the direction-changing inclined guide groove, the flip plate gradually changes from a vertical state to an inclined state with the left lower and the right higher. The flip shaft starts to rotate clockwise. When the guide sleeve on the supporting shaft enters the bottom of the vertical guide groove for bag feeding at the opening, the flip plate becomes horizontal, and the flip shaft rotates ninety degrees clockwise. The packaging bag adsorption mechanism at the front end of the flip shaft faces the left side, standing the plastic packaging bag upright, with the opening of the plastic packaging bag facing upward, which is convenient for subsequent opening and filling operations.

[0015] At this time, the packaging bag follow-up opening control mechanism can allow the packaging bag adsorption mechanism on the front side of the packaging bag follow-up opening control mechanism to move right, and the packaging bag adsorption mechanism is close to the top left side of the plastic packaging bag, and then the top left side of the plastic packaging bag is adsorbed, and then the packaging bag follow-up opening control mechanism drives the packaging bag adsorption mechanism to move left, and the opening at the top of the plastic packaging bag is stretched open, and then the control cylinder continues to shorten, and the guide sleeve on the supporting shaft continues to move upward along the vertical guide groove for feeding the bag at the stretching opening, and the flip plate remains in a horizontal state and moves upward, thereby driving the packaging bag adsorption mechanism on the front side of the flip shaft to move upward through the flip shaft, and at the same time, the supporting shaft also lifts the packaging bag follow-up opening control mechanism to move upward synchronously, driving the packaging bag adsorption mechanism at the front end of the packaging bag follow-up opening control mechanism to move upward synchronously, thereby driving the plastic packaging bag that has been stretched open to move upward, so that the top two sides of the plastic packaging bag after stretching open are clamped and fixed by the packaging bag opening fixing mechanism.

[0016] After the bag opening fixing mechanism clamps the top two sides of the plastic bag, the two bag adsorption mechanisms release the plastic bag, control the cylinder to extend, and drive the flip plate to move down horizontally by manipulating the horizontal plate. At this time, the two bag adsorption mechanisms move down synchronously, and the guide sleeve on the supporting shaft slides down along the vertical guide groove of the support mouth until it slides to the top of the direction-changing oblique guide groove. At this time, the bag follow-up opening control mechanism and the bag adsorption mechanism at the front end of the bag follow-up opening control mechanism stop moving down, and the flip shaft starts to rotate counterclockwise, which also drives the bag adsorption mechanism at the front end of the flip shaft to rotate counterclockwise. The bag adsorption mechanism at the front end of the flip shaft is in a downward position again, and can again adsorb the plastic bag on the plastic bag feeding plate, and realize the picking up and feeding operations of the plastic bag again. A control cylinder can realize the 90-degree flip of the bag adsorption mechanism at the front end of the flip shaft, and can also realize the upward movement of the plastic bag after the opening is opened, saving the use of driving components such as cylinders.

[0017] Furthermore, the packaging bag follow-up opening control mechanism includes a support cylinder, a vertical rail 2 is fixedly connected to the top of the rear side of the control box, the bottom of the vertical rail 2 is fixedly connected to the limit block seat, the vertical rail 2 is slidably connected to the slide 2, the slide 2 is fixedly connected to the follow-up horizontal sleeve, the left end of the follow-up horizontal sleeve is slidably connected to the right end of the L-shaped bent rod, and a horizontal support cylinder is installed on the rear side of the follow-up horizontal sleeve, and the telescopic end on the left side of the support cylinder is fixedly connected to the rear side of the L-shaped bent rod.

[0018] The cooperation between slide 2 and vertical rail 2 allows the follower horizontal sleeve to move smoothly up and down along vertical rail 2. When the follower horizontal sleeve is not affected by external power, due to its own gravity, the follower horizontal sleeve and slide 2 slide to the bottom of vertical rail 2. The bottom of slide 2 is limited by the limit stop and stops moving downward. The control cylinder shortens, driving the support shaft to move upward, and the support shaft supports the follower horizontal sleeve to move upward, which can simultaneously lift the L-shaped bent rod and the packaging bag adsorption mechanism at the front end of the L-shaped bent rod upward, the support cylinder extends, driving the packaging bag adsorption mechanism at the front end of the L-shaped bent rod to move left, and the support cylinder shortens, driving the packaging bag adsorption mechanism at the front end of the L-shaped bent rod to move right.

[0019] Furthermore, the packaging bag adsorption mechanism includes a suction cup, and the front end of the L-shaped bent rod and the front end of the flip axis are respectively installed with two horizontal extension rods through two longitudinal fine-adjustment components. The two extension rods are arranged correspondingly on the left and right, and the ends of the two extension rods close to each other are respectively fixedly connected to two longitudinal sleeves, and the front and rear ends of each longitudinal sleeve are respectively slidably connected to two spacing slides, and the two spacing slides are connected to the corresponding longitudinal sleeve bottoms through a suction cup gap adjustment component, and two suction cups are respectively installed on the ends of the two spacing slides away from the longitudinal sleeves.

[0020] The longitudinal fine-tuning component is used to adjust the longitudinal position of the extension rod, and the suction cup gap adjustment component is used to adjust the distance between the two suction cups. The longitudinal position of the extension rod and the distance between the two suction cups can be adjusted according to the size of the plastic packaging bag. When the guide sleeve on the supporting shaft enters the top of the vertical guide groove for picking up the bag, the flip plate is in a vertical state. At this time, the suction cup in the packaging bag adsorption mechanism at the front end of the flip shaft faces downward. With the help of the suction cup, the plastic packaging bag can be adsorbed, which is convenient for picking up and transferring the plastic packaging bag. When the guide sleeve on the supporting shaft enters the bottom of the vertical guide groove for feeding the bag at the support mouth, the flip plate becomes horizontal. At this time, the suction cups in the two packaging bag adsorption mechanisms are set correspondingly on the left and right.

[0021] Furthermore, the packaging feeding mechanism includes a hopper, a discharge pipe, and a discharge control assembly. The hopper is located above the rear end of the conveyor frame, with its bottom connected to the top of the discharge pipe, and the discharge control assembly mounted on top of the discharge pipe. The hopper holds the product, and the discharge control assembly controls the product in the hopper to drop through the discharge pipe into the open plastic packaging bag.

[0022] Furthermore, the packaging bag mouth fixing mechanism includes a bag mouth clamping cylinder, and the front and rear sides of the bottom of the discharge pipe are movably connected to the tops of the two stretching and pressing plates through a longitudinal mounting axis. The two stretching and pressing plates are arranged correspondingly on the left and right. Two stretching brackets are fixedly connected to both sides of the discharge pipe, and the two stretching brackets are movably connected to the tops of the two bag mouth clamping cylinders. The bottom ends of the two bag mouth clamping cylinders are movably connected to the two stretching and pressing plates. The bottom ends of the two stretching brackets are fixedly connected to two fixed splints, and a friction lining is provided on the side of the fixed splint close to the stretching and pressing plate.

[0023] When the top opening of the plastic bag is stretched open, the two bag-opening clamping cylinders extend, closing the two opening brackets. Then, the control cylinders retract, driving the two bag-holding mechanisms upward. These mechanisms then move the held and stretched plastic bag upward. When the top and sides of the plastic bag are higher than the top of the friction lining, the control cylinders stop operating. The two bag-opening clamping cylinders simultaneously retract, driving the two opening brackets to open. The opening brackets and friction lining secure the bag's opening. The discharge control assembly then controls the product in the hopper to drop through the discharge pipe into the stretched plastic bag, completing the filling process. During the filling process, the four suction cups stop operating, and the control cylinders extend, driving the tilting shaft downward and rotating it counterclockwise, so that the suction cups in the bag-holding mechanisms at the front of the tilting shaft face downward, avoiding interference with the filled plastic bag and facilitating the subsequent pickup and transfer of new plastic bags.

[0024] After the plastic packaging bag is filled with the product, the two bag clamping cylinders extend to close the two support brackets, loosen the two sides of the top of the plastic packaging bag, and the plastic packaging bag filled with the product falls to the back side of the chain conveyor. The chain conveyor works to transport the plastic packaging bag filled with the product forward. When the plastic packaging bag filled with the product is located below the exhaust and closing mechanism of the packaging bag, the chain conveyor stops working.

[0025] Furthermore, the packaging bag exhaust and closing mechanism includes a top beam, which is located above the front end of the conveyor bracket. The middle part of the top beam is fixedly connected to a vertical lifting cylinder, and the telescopic end of the bottom of the lifting cylinder is fixedly connected to the top of the exhaust and closing bracket. The inner side of the exhaust and closing bracket is connected to the top of the two rocker arms through a closing and opening buffer control component. The bottom ends of the two rocker arms are respectively installed with two roller frames, and the inner bottom ends of the two roller frames are respectively rotatably installed with two longitudinal exhaust and closing rollers, and the middle of the two roller frames are respectively installed with two sealing devices.

[0026] Furthermore, the closing and opening buffer control assembly includes an exhaust closing cylinder, and the bottom two sides of the exhaust closing bracket are rotatably connected to two corresponding longitudinal gear shafts on the left and right, and the middle of the two gear shafts are fixedly connected to two gears, and the two gears are fixedly connected to the top ends of the two rocker arms. The bottom center of the exhaust closing bracket is vertically slidably installed with a double-sided rack, and the two sides of the double-sided rack are respectively meshed with the two gears, and the top of the double-sided rack is connected to the bottom of the middle plate through a vertical buffer telescopic rod, and the top of the exhaust closing bracket is fixedly connected to the vertical exhaust closing cylinder, and the telescopic end of the bottom of the exhaust closing cylinder is fixedly connected to the top of the middle plate, and the outer side of the buffer telescopic rod is sleeved with a tension spring, and the upper and lower ends of the tension spring are respectively fixedly connected to the middle plate and the double-sided rack.

[0027] Compared with the existing technology, the beneficial effects of the packaging equipment for the filling and sealing machine are:

[0028] 1. This packaging equipment for the filling and sealing machine adopts the control cylinder in the bag feeding control mechanism to cooperate with the suction cup in one bag adsorption mechanism to realize the picking up and feeding operations of the plastic packaging bag, and adopts the opening cylinder to cooperate with the suction cup in the other bag adsorption mechanism to realize the opening operation of the plastic packaging bag. The control cylinder shortens, driving the two bag adsorption mechanisms to move upward, allowing the opened plastic packaging bag to move upward, and cooperating with the bag opening fixing mechanism to clamp and fix the bag opening of the plastic packaging bag to fill the product, and the packaging rhythm is smooth.

[0029] 2. The filling and sealing machine packaging equipment uses fewer cylinders to achieve the actions of picking up, opening, and sending the packaging bags to the bottom of the hopper. The packaging action is smooth, which is conducive to improving packaging efficiency.

[0030] 3. The filling and sealing machine is a packaging equipment. After filling the product, the upper part of the plastic packaging bag can be squeezed to exhaust air, and then sealed to avoid excessive air in the plastic packaging bag after sealing, and to avoid mutual squeezing during stacking and transportation, which may cause the plastic packaging bag to rupture. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of the packaging equipment for the filling and sealing machine of the present invention;

[0032] Figure 2 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0033] Figure 3 This is a schematic diagram of the rear structure of the packaging equipment for the filling and sealing machine of the present invention;

[0034] Figure 4 This is a schematic bottom view of the rear side of the packaging equipment structure for the filling and sealing machine of the present invention;

[0035] Figure 5 For the present invention Figure 4 A schematic diagram of the partially enlarged structure at point B in the middle;

[0036] Figure 6 This is a schematic diagram of the partial structure of the packaging equipment for the filling and sealing machine of the present invention;

[0037] Figure 7 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at point C in the middle;

[0038] Figure 8 For the present invention Figure 6 The schematic diagram of the local enlarged structure at D in the middle;

[0039] Figure 9 It is a partial structural schematic diagram of the packaging feeding mechanism in the packaging equipment for the filling and sealing machine of the present invention;

[0040] Figure 10 This is a schematic structural diagram of the packaging bag exhaust and closing mechanism and the sealing device in the packaging equipment for the filling and sealing machine of the present invention;

[0041] Figure 11 It is a partial structural schematic diagram of the packaging bag exhaust and closing mechanism in the packaging equipment for the filling and sealing machine of the present invention;

[0042] Figure 12 This is a schematic structural diagram of a conveyor support, a chain conveyor, and a packaging bag hammering mechanism in the packaging equipment for the filling and sealing machine of the present invention;

[0043] In the figure: 1-plastic packaging bag feeding plate, 2-bag feeding control mechanism, 21-control box, 22-supporting bag feeding vertical guide groove, 23-changing oblique guide groove, 24-bag picking vertical guide groove, 25-vertical rail 1, 26-slide 1, 27-control horizontal plate, 28-turning plate, 29-control cylinder, 210-support shaft, 211-guide sleeve, 212-turning shaft, 213-box cover, 214-through groove, 3-packaging bag adsorption mechanism, 31-mounting seat, 32-longitudinal telescopic rod, 33-end block, 34-screw, 35-screw nut 1, 36-knob 1, 37-extension rod, 38-vertical sleeve, 39-spacing slide, 310-suction cup, 311-bottom block, 312-screw nut 2, 313-knob 2, 314-bidirectional screw, 4-bag follow-up opening control mechanism, 41-vertical rail 2, 42-slide 2, 43-limit block, 44-follow-up horizontal sleeve, 45-support cylinder, 46-L-shaped bent rod, 47-connecting block, 48-fixed sleeve, 5-packaging feeding mechanism, 51-hopper, 52-lower Material pipeline, 53-control cylinder, 54-unloading drum, 55-fan-shaped unloading trough, 56-unloading motor, 6-bag opening fixing mechanism, 61-support bracket, 62-mounting shaft, 63-opening and pressing plate, 64-bag opening clamping cylinder, 65-fixed splint, 66-friction lining, 7-bag exhaust and closing mechanism, 71-top beam, 72-guide column, 73-lifting cylinder, 74-exhaust and closing bracket, 75-anti-slip nut, 76-exhaust and closing cylinder, 77-middle plate, 78-buffer telescopic Rod, 79-tension spring, 710-double-sided rack, 711-gear shaft, 712-gear, 713-rocker, 714-roller frame, 715-exhaust closing roller, 8-sealing equipment, 81-support plate, 82-guide rod, 83-sealing cylinder, 84-strip plate, 85-heating strip for sealing machine, 9-packaging bag tamping mechanism, 91-tamping cylinder, 92-tamping rod, 93-limiting telescopic rod, 10-plastic packaging bag, 11-conveyor bracket, 12-chain conveyor, 13-stop bar. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] For example 1, please refer to Figures 1 to 12This embodiment provides a technical solution: a packaging device for a filling and sealing machine, including a conveyor bracket 11, on which a longitudinal chain conveyor 12 is installed, and also includes a bag feeding control mechanism 2, a packaging bag follow-up opening control mechanism 4, a packaging bag adsorption mechanism 3, a packaging feeding mechanism 5, a packaging bag exhaust and closing mechanism 7 and a sealing device 8.

[0046] The bag feeding control mechanism 2 includes a control box 21, a flip guide groove, a ninety-degree flip guide assembly and a control power assembly. The control box 21 is located at the right rear of the conveyor bracket 11. A flip guide groove is provided on the rear side of the control box 21. A ninety-degree flip guide assembly is installed in the control box 21, and the ninety-degree flip guide assembly is connected to the control power assembly.

[0047] The flip guide groove includes a vertical guide groove 22 for feeding bags at the support mouth, a direction-changing oblique guide groove 23 and a vertical guide groove 24 for picking up bags. A vertical guide groove 24 for picking up bags is opened at the bottom left end of the rear side of the control box 21, and a vertical guide groove 22 for feeding bags at the support mouth is opened at the center of the top of the rear side of the control box 21. The bottom of the vertical guide groove 22 for feeding bags at the support mouth is connected to the top of the vertical guide groove 24 for picking up bags through a direction-changing oblique guide groove 23 which is tilted with the left lower and the right higher.

[0048] The control power assembly includes a vertical rail 25, a slide 26, a control horizontal plate 27 and a control cylinder 29. A vertical rail 25 is installed on the right side of the control box 21. The vertical rail 25 is slidably connected to the slide 26. The slide 26 is fixedly connected to the right end of the control horizontal plate 27. A vertical control cylinder 29 is installed on the top of the control box 21. The telescopic end at the bottom of the control cylinder 29 extends into the control box 21 and is connected to the top of the control horizontal plate 27.

[0049] The ninety-degree flip guide assembly includes a flip plate 28, a support shaft 210, a guide sleeve 211 and a flip shaft 212. The left end of the control horizontal plate 27 is rotatably connected to the longitudinal flip shaft 212 through a bearing. The rear end of the flip shaft 212 is fixedly connected to one end of the flip plate 28, and the rear side of the other end of the flip plate 28 is fixedly connected to the front end of the support shaft 210. The rear end of the support shaft 210 extends through the flip guide groove to the rear outside of the control box 21. The part of the support shaft 210 located in the flip guide groove is sleeved with a guide sleeve 211, and the guide sleeve 211 is slidably connected to the flip guide groove.

[0050] The bag feeding control mechanism 2 also includes a box cover 213 and a through slot 214. The box cover 213 is installed on the front side of the control box 21 by screws. A vertical through slot 214 is opened on the box cover 213. The flip shaft 212 passes through the through slot 214. The box cover 213 covers the control box 21. The setting of the through slot 214 avoids interference with the up and down movement of the flip shaft 212.

[0051] The control cylinder 29 extends, pushing the control cross plate 27 to move down along the vertical rail 25 with the help of the slide 26, and the control cross plate 27 drives the flip shaft 212 to move down. At this time, the flip plate 28 begins to be in a tilted state with the left lower and the right higher. At this time, the guide sleeve 211 on the supporting shaft 210 slides down along the direction-changing inclined guide groove 23. During this process, the flip shaft 212 rotates counterclockwise, and the flip plate 28 and the flip shaft 212 continue to move down. When the guide sleeve 211 on the supporting shaft 210 enters the top of the bag picking vertical guide groove 24, the flip plate 28 is in a vertical state and the flip shaft 212 rotates counterclockwise ninety degrees. At this time, the packaging bag adsorption mechanism 3 at the front end of the flip shaft 212 faces downward, and the packaging bag adsorption mechanism 3 at the front end of the flip shaft 212 works to adsorb the upper side of the left end of the plastic packaging bag 10 on the plastic packaging bag feeding plate 1.

[0052] The control cylinder 29 is shortened, driving the control cross plate 27 and the slide 26 to move upward along the vertical rail 25, and the guide sleeve 211 on the supporting shaft 210 moves upward in the bag picking vertical guide groove 24. When the guide sleeve 211 on the supporting shaft 210 enters the bottom of the direction-changing inclined guide groove 23, the flip plate 28 gradually begins to change from a vertical state to an inclined state with lower left and higher right, and the flip shaft 212 begins to rotate clockwise. When the guide sleeve 211 on the supporting shaft 210 enters the bottom of the vertical guide groove 22 for feeding the bag at the opening, the flip plate 28 becomes horizontal, and the flip shaft 212 rotates clockwise within a range of ninety degrees. The packaging bag adsorption mechanism 3 at the front end of the flip shaft 212 faces to the left, and the plastic packaging bag 10 is erected, and the opening of the plastic packaging bag 10 faces upward, which is convenient for subsequent opening and filling operations.

[0053] At this time, the packaging bag following opening control mechanism 4 can allow the packaging bag adsorption mechanism 3 on the front side of the packaging bag following opening control mechanism 4 to move right, and the packaging bag adsorption mechanism 3 is close to the left side of the top of the plastic packaging bag 10, and then the left side of the top of the plastic packaging bag 10 is adsorbed, and then the packaging bag following opening control mechanism 4 drives the packaging bag adsorption mechanism 3 to move left, and the opening of the top of the plastic packaging bag 10 is stretched, and then the control cylinder 29 continues to shorten, and the guide sleeve 211 on the supporting shaft 210 continues to move up along the vertical guide groove 22 of the stretching mouth feeding bag, and the flip plate 28 remains in a horizontal state and moves up, thereby driving the packaging bag adsorption mechanism 3 on the front side of the flip shaft 212 to move up through the flip shaft 212. At the same time, the supporting shaft 210 also lifts the packaging bag following opening control mechanism 4 to move up synchronously, driving the packaging bag adsorption mechanism 3 at the front end of the packaging bag following opening control mechanism 4 to move up synchronously, thereby driving the plastic packaging bag 10 that has been stretched to move up, so that the top two sides of the plastic packaging bag 10 after stretching are clamped and fixed by the packaging bag mouth fixing mechanism 6.

[0054] After the bag opening fixing mechanism 6 clamps the top two sides of the plastic bag 10, the two bag adsorption mechanisms 3 release the plastic bag 10, and the control cylinder 29 extends. By manipulating the horizontal plate 27, the flip plate 28 moves down horizontally. At this time, the two bag adsorption mechanisms 3 move down synchronously, and the guide sleeve 211 on the supporting shaft 210 slides down along the vertical guide groove 22 of the support mouth until it slides to the top of the direction-changing oblique guide groove 23. At this time, the bag follower opening control mechanism 4 and the bag adsorption mechanism 3 at the front end of the bag follower opening control mechanism 4 stop moving down, and the flip shaft 212 starts to rotate counterclockwise, which also drives the bag adsorption mechanism 3 at the front end of the flip shaft 212 to rotate counterclockwise. The control cylinder 29 continues to extend, and the guide sleeve 211 on the supporting shaft 210 enters the vertical guide groove 24 for picking up the bag. The flip plate 28 is in a vertical state again, and the flip shaft 212 rotates counterclockwise by ninety degrees. The packaging bag adsorption mechanism 3 at the front end of the flip shaft 212 is in a downward state again, and can adsorb the plastic packaging bag 10 on the plastic packaging bag feeding plate 1 again, and realize the picking up and feeding operation of the plastic packaging bag 10 again. A control cylinder 29 can be used to realize the ninety-degree flip of the packaging bag adsorption mechanism 3 at the front end of the flip shaft 212, and the upward movement of the plastic packaging bag 10 after the opening is realized, saving the use of driving components such as cylinders.

[0055] The packaging bag follow-up opening control mechanism 4 is installed on the top of the rear side of the control box 21 .

[0056] The packaging bag follow-up opening control mechanism 4 includes a vertical rail 2 41, a slide 2 42, a limit block 43, a follow-up horizontal sleeve 44, a support cylinder 45 and an L-shaped bent rod 46. The top of the rear side of the control box 21 is fixedly connected to the vertical rail 2 41, and the bottom of the vertical rail 2 41 is fixedly connected to the limit block 43. The vertical rail 2 41 is slidably connected to the slide 2 42, and the slide 2 42 is fixedly connected to the follow-up horizontal sleeve 44. The left end of the follow-up horizontal sleeve 44 is slidably connected to the right end of the L-shaped bent rod 46. A horizontal support cylinder 45 is installed on the rear side of the follow-up horizontal sleeve 44, and the telescopic end on the left side of the support cylinder 45 is fixedly connected to the rear side of the L-shaped bent rod 46. When the guide sleeve 211 is at the bottom of the support bag feeding vertical guide groove 22, the support shaft 210 and the top of the limit block 43 simultaneously support the bottom of the follow-up horizontal sleeve 44.

[0057] The packaging bag follow-up opening control mechanism 4 also includes a connecting block 47 and a fixing sleeve 48. The rear side of the follow-up horizontal sleeve 44 is fixedly connected to the fixed end of the support cylinder 45 through the fixing sleeve 48, and the telescopic end on the left side of the support cylinder 45 is fixedly connected to the rear side of the L-shaped bent rod 46 through the connecting block 47.

[0058] The cooperation between slide 2 42 and vertical rail 2 41 allows the follower horizontal sleeve 44 to move up and down smoothly along vertical rail 2 41. When the follower horizontal sleeve 44 is not affected by external power, due to its own gravity, the follower horizontal sleeve 44 and slide 2 42 slide to the bottom of vertical rail 2 41. The bottom of slide 2 42 is limited by the limit stop 43 and stops moving downward. The control cylinder 29 shortens, driving the support shaft 210 to move upward. The support shaft 210 supports the follower horizontal sleeve 44 to move upward, and can simultaneously lift the L-shaped bent rod 46 and the packaging bag adsorption mechanism 3 at the front end of the L-shaped bent rod 46 to move upward. The support cylinder 45 extends, driving the packaging bag adsorption mechanism 3 at the front end of the L-shaped bent rod 46 to move left, and the support cylinder 45 shortens, driving the packaging bag adsorption mechanism 3 at the front end of the L-shaped bent rod 46 to move right.

[0059] The packaging bag adsorption mechanism 3 is installed at the front end of the packaging bag follow-up opening control mechanism 4 and the 90-degree turning guide component.

[0060] The packaging bag adsorption mechanism 3 includes a longitudinal fine-tuning component, an extension rod 37, a longitudinal sleeve 38, a spacing slide 39, a suction cup 310 and a suction cup gap adjustment component. The front end of the L-shaped bent rod 46 and the front end of the flip shaft 212 are respectively installed with two transverse extension rods 37 through two longitudinal fine-tuning components. The two extension rods 37 are arranged correspondingly on the left and right, and the ends of the two extension rods 37 close to each other are fixedly connected to two longitudinal sleeves 38. The front and rear ends of each longitudinal sleeve 38 are respectively slidably connected to two spacing slides 39. The two spacing slides 39 are connected to the corresponding bottom of the longitudinal sleeve 38 through the suction cup gap adjustment component. Two suction cups 310 are respectively installed on the ends of the two spacing slides 39 away from the longitudinal sleeve 38. The extension rod 37 in front of the flip shaft 212 is opposite to the flip plate 28 at the rear end of the flip shaft 212, and when the guide sleeve 211 is at the bottom of the vertical guide groove 22 for supporting the bag, the two longitudinal sleeves 38 are arranged correspondingly on the left and right.

[0061] Specifically, the longitudinal fine-tuning assembly includes a mounting seat 31, a longitudinal telescopic rod 32, an end block 33, a lead screw 34, a lead screw nut 35, and a knob 36. The front end of the L-shaped bent rod 46 and the front end of the flip shaft 212 are respectively fixedly connected to two mounting seats 31. The front end of each mounting seat 31 is respectively fixedly connected to the rear end of a longitudinal telescopic rod 32. The front end of the longitudinal telescopic rod 32 is fixedly connected to the end block 33. The side of the end block 33 is installed with a lead screw nut 35. The lead screw nut 35 is fixed to the end block 33. The lead screw 34 is installed in cooperation, and the rear end of the lead screw 34 is rotatably connected to the front end of the corresponding mounting seat 31 through a bearing. A knob 36 is installed at the front end of the lead screw 34. By rotating the lead screw 34 clockwise through the knob 36, the threaded action of the lead screw 34 and the lead screw nut 35 drives the end block 33 to move forward along the longitudinal telescopic rod 32. By rotating the lead screw 34 counterclockwise through the knob 36, the threaded action of the lead screw 34 and the lead screw nut 35 drives the end block 33 to move backward along the longitudinal telescopic rod 32.

[0062] The suction cup gap adjustment assembly includes a bottom block 311, a screw nut 2 312, a knob 2 313, and a bidirectional screw 314. The bottom of each longitudinal sleeve 38 is respectively installed with a bottom block 311, and the bottom block 311 is rotatably connected to the middle part of the longitudinal bidirectional screw 314 through a bearing. The bottoms of the two spacing slides 39 at both ends of each longitudinal sleeve 38 are respectively fixedly connected to two screw nuts 2 312. The thread directions of the two ends of the bidirectional screw 314 are opposite, and the two ends of the bidirectional screw 314 are respectively installed with the corresponding two screw nuts 2 312, and the ends of the bidirectional screw 314 are installed. A second knob 313 is provided, and the bidirectional lead screw 314 is rotated clockwise by rotating the second knob 313. Since the threads at both ends of the bidirectional lead screw 314 are in opposite directions, the threads of the two-way lead screw 314 and the two lead screw nuts 312 drive the two spacing slides 39 to approach each other along the longitudinal sleeve 38, thereby reducing the distance between the two suction cups 310 in each packaging bag adsorption mechanism 3. By rotating the two-way lead screw 314 counterclockwise with the help of the second knob 313, the two spacing slides 39 can be driven to move away from each other along the longitudinal sleeve 38, thereby increasing the distance between the two suction cups 310 in each packaging bag adsorption mechanism 3.

[0063] The longitudinal fine-tuning component is used to adjust the longitudinal position of the extension rod 37, and the suction cup gap adjustment component is used to adjust the distance between the two suction cups 310. The longitudinal position of the extension rod 37 and the distance between the two suction cups 310 can be adjusted according to the size of the plastic packaging bag 10. When the guide sleeve 211 on the supporting shaft 210 enters the top of the vertical guide groove 24 for picking up the bag, the flip plate 28 is in a vertical state. At this time, the suction cup 310 in the packaging bag adsorption mechanism 3 at the front end of the flip shaft 212 faces downward. With the help of the suction cup 310, the plastic packaging bag 10 can be adsorbed, which is convenient for picking up and transferring the plastic packaging bag 10. When the guide sleeve 211 on the supporting shaft 210 enters the bottom of the vertical guide groove 22 for feeding the bag at the support mouth, the flip plate 28 becomes horizontal. At this time, the suction cups 310 in the two packaging bag adsorption mechanisms 3 are set correspondingly on the left and right.

[0064] The packaging feeding mechanism 5 is installed above the rear end of the conveyor bracket 11 , and a packaging bag opening fixing mechanism 6 is installed at the bottom of the packaging feeding mechanism 5 .

[0065] The packaging bag exhaust and closing mechanism 7 is installed above the front end of the conveyor bracket 11, and a sealing device 8 is installed at the bottom of the packaging bag exhaust and closing mechanism 7.

[0066] When in use, the control power component drives the 90-degree flip guide component to move downward along the flip guide groove in the control box 21, thereby driving a packaging bag adsorption mechanism 3 downward, and a plastic packaging bag feeding plate 1 is provided at the front side of the bottom of the control box 21. The plastic packaging bag 10 is placed on the plastic packaging bag feeding plate 1, and the left and rear sides of the plastic packaging bag feeding plate 1 are respectively provided with baffles 13. The baffles 13 limit the left and rear sides of the plastic packaging bag 10 on the plastic packaging bag feeding plate 1, which is conducive to the regular placement of the plastic packaging bag 10 on the plastic packaging bag feeding plate 1. The opening of the plastic packaging bag 10 is located at the left end. The packaging bag adsorption mechanism 3 adsorbs the upper left end of the plastic packaging bag 10 on the plastic packaging bag feeding plate 1, and then controls the power component The component drives the ninety-degree flip guide assembly to move upward along the flip guide groove in the control box 21. The flip guide groove and the ninety-degree flip guide assembly cooperate to make the packaging bag adsorption mechanism 3 and the plastic packaging bag 10 flip ninety degrees clockwise. At this time, the opening of the plastic packaging bag 10 faces upward, and the packaging bag follow-up opening control mechanism 4 drives another packaging bag adsorption mechanism 3 to approach the top left side of the plastic packaging bag 10. The packaging bag adsorption mechanism 3 at the front end of the packaging bag follow-up opening control mechanism 4 adsorbs the top left side of the plastic packaging bag 10, and then the packaging bag follow-up opening control mechanism 4 drives the packaging bag adsorption mechanism 3 to move left to open the opening at the top of the plastic packaging bag 10. At this time, the plastic packaging bag 10 with the opened opening is located at the packaging feeding mechanism 5 The packaging bag 10 is picked up by the feeding mechanism 5 and the feeding mechanism 6 is moved to the feeding mechanism 5. The feeding mechanism 5 is moved to the feeding mechanism 5 and the feeding mechanism 6 is moved to the feeding mechanism 5. The feeding mechanism 5 is moved to the feeding mechanism 5 and the feeding mechanism 6 is moved to the feeding mechanism 5. After the product is filled in the bag 10 and the filling amount in the plastic packaging bag 10 is qualified, the packaging bag mouth fixing mechanism 6 releases the plastic packaging bag 10, and the plastic packaging bag 10 falls to the upper rear end of the chain conveyor 12 due to gravity. The chain conveyor 12 drives the plastic packaging bag 10 filled with the product to move forward. When the plastic packaging bag 10 filled with the product is located below the packaging bag exhaust and closing mechanism 7, the chain conveyor 12 stops running, and the packaging bag exhaust and closing mechanism 7 exhausts the upper half of the plastic packaging bag 10 filled with the product. At the end of exhausting, the opening of the plastic packaging bag 10 is also clamped and closed. At this time, the sealing device 8 works to seal the opening of the plastic packaging bag 10. During the exhausting and sealing operations,The bag feeding control mechanism 2, the bag suction mechanism 3, the bag follow-up opening control mechanism 4, the packaging feeding mechanism 5, and the bag mouth fixing mechanism 6 continue to perform operations such as bag feeding, opening, and filling according to the aforementioned steps. When the bag mouth fixing mechanism 6 releases the plastic packaging bag 10 filled with the product and allows the filled plastic packaging bag 10 to fall to the upper rear end of the chain conveyor 12, the chain conveyor 12 continues to move forward, delivering the sealed plastic packaging bag 10 and simultaneously delivering the filled plastic packaging bag 10 to the bottom of the bag exhaust and closing mechanism 7, realizing a pulsed packaging process with high packaging efficiency.

[0067] For example 2, please refer to Figures 1 to 12 This embodiment provides a technical solution: a packaging device for a filling and sealing machine. This embodiment further explains the structure of the first embodiment:

[0068] The packaging feeding mechanism 5 includes a hopper 51, a discharge pipe 52 and a discharge control component. The hopper 51 is located above the rear end of the conveyor bracket 11. The hopper 51 is hoisted on the factory bracket. The bottom of the hopper 51 is connected to the top of the discharge pipe 52. The discharge control component is installed on the top of the discharge pipe 52.

[0069] The hopper 51 holds the product, and the discharge control assembly can control the product in the hopper 51 to drop through the discharge pipe 52 into the plastic packaging bag 10 with an opening.

[0070] The feeding control assembly includes a control cylinder 53, a feeding drum 54, a fan-shaped feeding trough 55, and a feeding motor 56. A control cylinder 53 is provided on the top of the feeding pipe 52, and the feeding drum 54 is rotatably installed in the control cylinder 53. Six fan-shaped feeding troughs 55 are provided in a circular array on the outer circumference of the feeding drum 54. One end of the feeding drum 54 is fixedly connected to the output shaft of the feeding motor 56. The feeding motor 56 is installed on the outer side of the end of the control cylinder 53. The products to be packaged in the hopper 51 fall into the fan-shaped feeding trough 55 on the upper side of the feeding drum 54. When feeding is required, the feeding motor 56 drives the feeding drum 54 to rotate, and the fan-shaped feeding trough 55 on the upper side of the feeding drum 54 rotates to a downward position. The products to be packaged fall from the downward fan-shaped feeding trough 55 into the feeding pipe 52 and can eventually fall into the plastic packaging bag 10 with the support opening. Controlling the speed of the feeding motor 56 can control the feeding speed.

[0071] The packaging bag mouth fixing mechanism 6 includes a support bracket 61, a mounting shaft 62, a support and pressing plate 63, a bag mouth clamping cylinder 64, a fixed clamping plate 65 and a friction lining 66. The front and rear sides of the bottom of the discharge pipe 52 are movably connected to the tops of the two support and pressing plates 63 through the longitudinal mounting shaft 62. There are two mounting shafts 62. The front mounting shaft 62 is movably connected to the front sides of the tops of the two support and pressing plates 63, and the rear mounting shaft 62 is movably connected to the rear sides of the tops of the two support and pressing plates 63. The two support and pressing plates 63 are arranged correspondingly on the left and right. The two sides of the discharge pipe 52 are fixedly connected to the two support brackets 61, and the two support brackets 61 are fixedly connected to the two sides of the discharge pipe 52. The top ends of the two bag opening clamping cylinders 64 are movably connected to the two opening and pressing plates 63 through pins, and the bottom ends of the two bag opening clamping cylinders 64 are movably connected to the two opening and pressing plates 63 through pins. The bottom ends of the two opening brackets 61 are fixedly connected to two fixed clamping plates 65, and a friction lining 66 is provided on the side of the fixed clamping plate 65 close to the opening and pressing plate 63. The friction lining 66 adopts a rubber pad with friction patterns. The two bag opening clamping cylinders 64 are shortened at the same time, driving the two opening brackets 61 to open. The bottom outer side of the opening bracket 61 is close to the friction lining 66. The opening bracket 61 and the friction lining 66 clamp the bag opening of the plastic packaging bag 10.

[0072] When the opening at the top of the plastic packaging bag 10 is stretched open, the two bag-opening clamping cylinders 64 extend, allowing the two opening brackets 61 to close, and then the control cylinder 29 is shortened, driving the two packaging bag adsorption mechanisms 3 to move upward, and the two packaging bag adsorption mechanisms 3 drive the adsorbed and stretched plastic packaging bag 10 to move upward. When the heights of the top two sides of the plastic packaging bag 10 are higher than the top of the friction lining 66, the control cylinder 29 stops working, and the two bag-opening clamping cylinders 64 shorten at the same time, driving the two opening brackets 61 to open, and the opening brackets 61 and the friction lining 66 clamp the bag opening of the plastic packaging bag 10 and fix it. At this time, the unloading control component can control the product in the hopper 51 to fall into the stretched plastic packaging bag 10 through the unloading pipe 52, completing the product filling operation. During the filling operation, the four suction cups 310 stop working, the control cylinder 29 extends, drives the flip shaft 212 to move downward, and flips the flip shaft 212 counterclockwise, so that the suction cups 310 in the packaging bag adsorption mechanism 3 at the front end of the flip shaft 212 face downward, avoiding interference with the plastic packaging bag 10 after the product is filled, and also facilitating the subsequent picking up and transfer of new plastic packaging bags 10.

[0073] After the plastic packaging bag 10 is filled with the product, the two bag clamping cylinders 64 extend to close the two support brackets 61, loosen the two sides of the top of the plastic packaging bag 10, and the plastic packaging bag 10 filled with the product falls to the rear side of the chain conveyor 12. The chain conveyor 12 works to convey the plastic packaging bag 10 filled with the product forward. When the plastic packaging bag 10 filled with the product is located below the packaging bag exhaust and closing mechanism 7, the chain conveyor 12 stops working.

[0074] For example three, please refer to Figures 1 to 12 This embodiment provides a technical solution: a packaging device for a filling and sealing machine. This embodiment is a further explanation of the structure of the second embodiment:

[0075] The packaging bag exhaust and closing mechanism 7 includes a top beam 71, a lifting cylinder 73, an exhaust and closing bracket 74, a closing and opening buffer control component, a rocker arm 713, a roller frame 714 and an exhaust and closing roller 715. The top beam 71 is located above the front end of the conveyor bracket 11. The top beam 71 is fixed to the factory bracket by mounting bolts. The middle part of the top beam 71 is fixedly connected to the vertical lifting cylinder 73. The telescopic end at the bottom of the lifting cylinder 73 is fixedly connected to the top of the exhaust and closing bracket 74. The inner side of the exhaust and closing bracket 74 is connected to the top of the two rocker arms 713 through the closing and opening buffer control component. The bottom ends of the two rocker arms 713 are respectively installed with two roller frames 714. The inner bottom ends of the two roller frames 714 are respectively rotatably installed with two longitudinal exhaust and closing rollers 715. The middle of the two roller frames 714 are respectively installed with two sealing devices 8.

[0076] The sealing equipment 8 includes a support plate 81, a guide rod 82, a sealing cylinder 83, a strip plate 84, and a heating strip 85 for a sealing machine. Two support plates 81 are fixedly connected to the top of each roller frame 714, and two guide rods 82 are slidably connected in the guide holes on the two support plates 81. The two guide rods 82 are perpendicular to the rocker rod 713. One end of the two guide rods 82 located in the roller frame 714 is fixedly connected to the strip plate 84. A sealing cylinder 83 is installed in the middle of the outer side of the roller frame 714 through a support. The sealing cylinder 83 is parallel to the guide rod 82. The telescopic end of the sealing cylinder 83 is fixedly connected to the middle of the corresponding strip plate 84. Two heating strips 85 for a sealing machine are respectively installed at the ends of the two strip plates 84 close to each other.

[0077] The packaging bag exhaust and closing mechanism 7 also includes guide columns 72 and anti-slip nuts 75. The top sides of the top of the top beam 71 are fixedly connected to the top ends of the two guide columns 72. The two guide columns 72 are vertically slidably connected to the two guide holes on the exhaust and closing bracket 74. The bottom ends of the two guide columns 72 are respectively threaded with anti-slip nuts 75. The guide columns 72 cooperate with the exhaust and closing bracket 74 to allow the lifting cylinder 73 to stably drive the exhaust and closing bracket 74 to move up and down. The setting of the anti-slip nuts 75 prevents the guide columns 72 from completely detaching from the exhaust and closing bracket 74.

[0078] The closing and opening buffer control assembly includes an exhaust closing cylinder 76, an intermediate plate 77, a buffer telescopic rod 78, a tension spring 79, a double-sided rack 710, a gear shaft 711 and a gear 712. The bottom two sides of the exhaust closing bracket 74 are rotatably connected to two corresponding longitudinal gear shafts 711 on the left and right. The middle of the two gear shafts 711 are fixedly connected to two gears 712, and the two gears 712 are fixedly connected to the top of the two rocker arms 713. The bottom center of the exhaust closing bracket 74 is vertically slidably installed with a double-sided rack 710. The two sides of the double-sided rack 710 are respectively connected to the two gears 713. 12 meshing connection, the top of the double-sided rack 710 is connected to the bottom of the middle plate 77 through the vertical buffer telescopic rod 78, the top of the exhaust closing bracket 74 is fixedly connected to the vertical exhaust closing cylinder 76, the telescopic end of the bottom of the exhaust closing cylinder 76 is fixedly connected to the top of the middle plate 77, the outer side of the buffer telescopic rod 78 is sleeved with a tension spring 79, the upper and lower ends of the tension spring 79 are respectively fixedly connected to the middle plate 77 and the double-sided rack 710, the exhaust closing cylinder 76 extends, pushing the buffer telescopic rod 78 to shorten, when the buffer telescopic rod 78 is shortened to the shortest state, the tension spring 79 is in a natural state.

[0079] When in use, as the plastic packaging bag 10 filled with products is transported forward with the operation of the chain conveyor 12, the lifting cylinder 73 extends, lowering the height of the two exhaust and closing rollers 715 at the bottom, and then the exhaust and closing cylinder 76 extends, shortening the buffer telescopic rod 78. After the buffer telescopic rod 78 is shortened to the shortest state, the double-sided rack 710 is pushed down along the bottom of the exhaust and closing bracket 74, and the double-sided rack 710 drives the two gears 712 to rotate in the opposite direction, thereby driving the two rocker arms 713 to open, thereby driving the two exhaust and closing rollers 715 away through the two roller frames 714. When the plastic packaging bag 10 filled with products moves between the two exhaust and closing rollers 715, the chain conveyor 12 When the work stops, the exhaust and closing cylinder 76 shortens, pulling the buffer telescopic rod 78 to extend, and with the help of the stretching force of the tension spring 79, the double-sided rack 710 is moved upward with elastic buffering effect, so that the two swing rods 713 are moved closer with elastic buffering effect, so that the two exhaust and closing rollers 715 are moved close to the middle two sides of the plastic packaging bag 10 filled with products with buffering effect. Then the lifting cylinder 73 shortens, driving the exhaust and closing bracket 74 to move upward, and the two exhaust and closing rollers 715 roll upward along the two sides of the plastic packaging bag 10. Due to the stretching force of the tension spring 79, the two exhaust and closing rollers 715 are elastically moved closer to each other, squeezing out the air in the upper middle part of the plastic packaging bag 10. The lifting cylinder 73 continues to shorten until the two exhaust and closing rollers 715 roll close to the top opening of the plastic packaging bag 10. At this time, most of the air in the plastic packaging bag 10 is exhausted, and the top opening of the plastic packaging bag 10 is squeezed closed. At this time, the two sealing devices 8 work. Specifically, the two sealing cylinders 83 extend, and the two sealing machine heating strips 85 are brought close to each other with the help of two strip plates 84. The two sealing machine heating strips 85 heat-melt the two sides of the top opening of the plastic packaging bag 10 to seal the top opening of the plastic packaging bag 10. Then the exhaust and closing cylinder 76 extends to shorten the buffer telescopic rod 78. After the buffer telescopic rod 78 is shortened to the shortest state, the double-sided gear is pushed. The strip 710 moves down along the bottom of the exhaust and closing bracket 74, and the double-sided rack 710 drives the two gears 712 to rotate in the opposite direction, thereby driving the two rocker arms 713 to open, thereby driving the two exhaust and closing rollers 715 to move away through the two roller frames 714, loosening the sealed plastic packaging bag 10, and the chain conveyor 12 works to send the sealed plastic packaging bag 10 forward, completing the entire packaging process. During the exhaust and sealing process of the plastic packaging bag 10 filled with products, the rear bag feeding control mechanism 2, the packaging bag adsorption mechanism 3, the packaging bag follow-up opening control mechanism 4, the packaging feeding mechanism 5 and the packaging bag mouth fixing mechanism 6 can still continue to operate to perform operations such as bag feeding, opening, and filling products.

[0080] For example 4, please refer to Figures 1 to 12This embodiment provides a technical solution: a packaging device for a filling and sealing machine. The structure of this embodiment is roughly the same as that of the third embodiment, except that:

[0081] A packaging bag compacting mechanism 9 is also provided. The product in the hopper 51 falls into the opened plastic packaging bag 10 through the discharge control component and the discharge pipe 52. Due to the gravity of the product in the plastic packaging bag 10, the plastic packaging bag 10 is in a relatively flat state. After the amount of filled product reaches the standard, the product will accumulate at the opening at the top of the plastic packaging bag 10, affecting the subsequent exhaust and sealing operations. Therefore, a packaging bag compacting mechanism 9 is provided. The packaging bag compacting mechanism 9 will hammer the bottom of the plastic packaging bag 10 filled with the product upwards to make the product in the plastic packaging bag 10 tight and cause the top surface of the product in the plastic packaging bag 10 to drop, facilitating subsequent exhaust and sealing operations.

[0082] Since the plastic packaging bag 10 filled with products is unstable when it falls onto the chain conveyor 12, it is necessary to set limiting components on both sides of the chain conveyor 12. Therefore, two chain conveyors 12 are provided, and the two chain conveyors 12 are installed on the conveyor bracket 11 respectively on the left and right sides. The upper sides of the two chain conveyors 12 are distributed in a V-shaped structure. The plastic packaging bag 10 filled with products falls between the two chain conveyors 12. The upper sides of the two chain conveyors 12 are distributed in a V-shaped structure, which can allow the plastic packaging bag 10 filled with products to be stably in a vertical state, and the limiting components for the plastic packaging bag 10 can be used less or not.

[0083] A gap is left between the two chain conveyors 12 to facilitate the installation and arrangement of the packaging bag hammering mechanism 9.

[0084] The packaging bag hammering mechanism 9 includes a hammering cylinder 91, a hammering rod 92, and a limiting telescopic rod 93. The middle part of the rear end of the conveyor bracket 11 is fixedly connected to two vertical limiting telescopic rods 93 corresponding to the front and rear ends. The tops of the two limiting telescopic rods 93 are fixedly connected to the front and rear ends of the hammering rod 92 respectively. The hammering rod 92 is located between the two chain conveyors 12. The middle part of the hammering rod 92 is fixedly connected to the top of the hammering cylinder 91, and the bottom end of the hammering cylinder 91 is fixedly connected to the rear end of the conveyor bracket 11. The two limiting telescopic rods 93 limit the hammering rod 92 so that the hammering rod 92 can only move up and down. The hammering cylinder 91 extends and shortens to drive the hammering rod 92 to move up and down. When the plastic packaging bag 10 is filled with the product, the hammering rod 92 moves up and down to hammer the bottom of the plastic packaging bag 10, making the product in the plastic packaging bag 10 tighter, avoiding the product from being too close to the bag opening, causing the product to leak from the bag opening when the plastic packaging bag 10 is subsequently vented, and also avoiding subsequent sealing failure.

[0085] See also Figures 1 to 12 , a packaging method for a packaging device for a filling and sealing machine, comprising the following steps:

[0086] The plastic packaging bag 10 is placed on the plastic packaging bag feeding plate 1, and the control cylinder 29 is extended to push the control cross plate 27 to move downward along the vertical rail 25 with the help of the slide 26. The control cross plate 27 drives the flip shaft 212 to move downward. At this time, the flip plate 28 begins to be in an inclined state with the left lower and the right higher. At this time, the guide sleeve 211 on the supporting shaft 210 slides down along the direction-changing inclined guide groove 23. During this process, the flip shaft 212 rotates counterclockwise, and the flip plate 28 and the flip shaft 212 continue to move downward. When the guide sleeve 211 on the supporting shaft 210 enters the top of the bag picking vertical guide groove 24, the flip plate 28 is in a vertical state, and the flip shaft 212 rotates ninety degrees counterclockwise. At this time, the packaging bag adsorption mechanism 3 at the front end of the flip shaft 212 is facing downward.

[0087] The packaging bag adsorption mechanism 3 at the front end of the flip shaft 212 works to adsorb the upper left end of the plastic packaging bag 10 on the plastic packaging bag feeding plate 1 .

[0088] The control cylinder 29 is shortened, driving the control cross plate 27 and the slide 26 to move upward along the vertical rail 25, and the guide sleeve 211 on the supporting shaft 210 moves upward in the bag picking vertical guide groove 24. When the guide sleeve 211 on the supporting shaft 210 enters the bottom of the direction-changing inclined guide groove 23, the flip plate 28 gradually begins to change from a vertical state to an inclined state with lower left and higher right, and the flip shaft 212 begins to rotate clockwise. When the guide sleeve 211 on the supporting shaft 210 enters the bottom of the support mouth bag feeding vertical guide groove 22, the flip plate 28 becomes horizontal, and the flip shaft 212 rotates clockwise within a range of ninety degrees. The packaging bag adsorption mechanism 3 at the front end of the flip shaft 212 faces to the left, and the plastic packaging bag 10 is erected, and the opening of the plastic packaging bag 10 faces upward.

[0089] The opening-opening cylinder 45 is shortened, driving the packaging bag adsorption mechanism 3 at the front end of the L-shaped curved rod 46 to move right. The packaging bag adsorption mechanism 3 at the front end of the L-shaped curved rod 46 is close to the top left side of the plastic packaging bag 10 and adsorbs the top left side of the plastic packaging bag 10. The opening-opening cylinder 45 is extended, driving the packaging bag adsorption mechanism 3 at the front end of the L-shaped curved rod 46 to move left, and opening the opening at the top of the plastic packaging bag 10.

[0090] The control cylinder 29 continues to shorten, and the guide sleeve 211 on the supporting shaft 210 continues to move upward along the vertical guide groove 22 for feeding the bag, and the flip plate 28 remains in a horizontal state and moves upward, thereby driving the packaging bag adsorption mechanism 3 on the front side of the flip shaft 212 to move upward through the flip shaft 212. At the same time, the supporting shaft 210 also lifts up the packaging bag follow-up opening control mechanism 4 and moves it upward synchronously, driving the packaging bag adsorption mechanism 3 at the front end of the packaging bag follow-up opening control mechanism 4 to move upward synchronously, thereby driving the plastic packaging bag 10 that has been opened to move upward.

[0091] When the heights of both sides of the top of the plastic packaging bag 10 are higher than the top of the friction lining 66, the control cylinder 29 stops working, and the two bag opening clamping cylinders 64 shorten at the same time, driving the two opening brackets 61 to open. The opening brackets 61 and the friction lining 66 clamp the bag opening of the plastic packaging bag 10 and fix it. At this time, the discharge control component can control the product in the hopper 51 to fall into the plastic packaging bag 10 with the opening through the discharge pipe 52, completing the product filling operation. At the same time, the four suction cups 310 stop adsorbing the plastic packaging bag 10.

[0092] After the plastic packaging bag 10 is filled with the product, the two bag clamping cylinders 64 extend to close the two support brackets 61, loosen the two sides of the top of the plastic packaging bag 10, and the plastic packaging bag 10 filled with the product falls to the rear side of the chain conveyor 12. The chain conveyor 12 works to convey the plastic packaging bag 10 filled with the product forward. When the plastic packaging bag 10 filled with the product is located below the packaging bag exhaust and closing mechanism 7, the chain conveyor 12 stops working.

[0093] The lifting cylinder 73 extends to lower the height of the two exhaust and closing rollers 715 at the bottom, and then the exhaust and closing cylinder 76 extends to shorten the buffer telescopic rod 78. After the buffer telescopic rod 78 is shortened to the shortest state, the double-sided rack 710 is pushed down along the bottom of the exhaust and closing bracket 74. The double-sided rack 710 drives the two gears 712 to rotate in the opposite direction, thereby driving the two rocker arms 713 to open, and then driving the two exhaust and closing rollers 715 away through the two roller frames 714.

[0094] When the plastic packaging bag 10 filled with the product moves between the two exhaust and closing rollers 715, the chain conveyor 12 stops working, the exhaust and closing cylinder 76 shortens, pulling the buffer telescopic rod 78 to extend, and with the help of the tensile force of the tension spring 79, the double-sided rack 710 is driven to move upward with an elastic buffering effect, so that the two rocker arms 713 are elastically buffered and moved closer, so that the two exhaust and closing rollers 715 are buffered and close to the middle two sides of the plastic packaging bag 10 filled with the product. Then the lifting cylinder 73 shortens, driving the exhaust and closing bracket 74 to move upward, and the two exhaust and closing rollers 715 roll upward along the two sides of the plastic packaging bag 10. Due to the tensile force of the tension spring 79, the two exhaust and closing rollers 715 are elastically moved closer to each other, squeezing out the air in the upper middle part of the plastic packaging bag 10.

[0095] The lifting cylinder 73 continues to shorten until the two exhaust and closing rollers 715 roll close to the top opening of the plastic packaging bag 10. At this time, most of the air in the plastic packaging bag 10 is exhausted, and the top opening of the plastic packaging bag 10 is squeezed closed. At this time, the two sealing devices 8 work to seal the top opening of the plastic packaging bag 10, and then the exhaust and closing cylinder 76 extends to shorten the buffer telescopic rod 78. After the buffer telescopic rod 78 is shortened to the shortest state, the double-sided rack 710 is pushed down along the bottom of the exhaust and closing bracket 74. The double-sided rack 710 drives the two gears 712 to rotate in the opposite direction, thereby driving the two rocker arms 713 to open, thereby driving the two exhaust and closing rollers 715 away through the two roller frames 714, releasing the sealed plastic packaging bag 10, and the chain conveyor 12 works to send the sealed plastic packaging bag 10 forward, completing the entire packaging process.

[0096] It is worth noting that the chain conveyor 12, control cylinder 29, support cylinder 45, unloading motor 56, bag clamping cylinder 64, lifting cylinder 73, exhaust closing cylinder 76, sealing machine heating strip 85 and hammering cylinder 91 disclosed in the above embodiments are all controlled by an external PLC controller, and the control method adopts the method commonly used in the prior art, wherein the unloading motor 56 adopts a servo motor, and each of the above cylinders is connected to the external air source through pipelines and solenoid valves, and the suction cup 310 is connected to the external negative pressure air source through a negative pressure pipeline, and the control of the suction cup 310 to adsorb the plastic packaging bag 10 adopts the existing technology.

[0097] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0098] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A packaging device for a filling and sealing machine, comprising a conveyor support (11), wherein a longitudinal chain conveyor (12) is mounted on the conveyor support (11), characterized in that: Also includes: The bag feeding control mechanism (2) includes a control box (21), the control box (21) is located at the right rear of the conveyor bracket (11), a reversing guide groove is provided on the rear side of the control box (21), a ninety-degree reversing guide assembly is installed in the control box (21), and the ninety-degree reversing guide assembly is connected to the control power assembly; A packaging bag follower opening control mechanism (4) is mounted on the top rear side of the control box (21); The packaging bag adsorption mechanism (3) is installed at the front end of the packaging bag follow-up opening control mechanism (4) and the ninety-degree turning guide assembly; A packaging feeding mechanism (5) is installed above the rear end of the conveyor bracket (11), and a packaging bag opening fixing mechanism (6) is installed at the bottom of the packaging feeding mechanism (5); The packaging bag exhaust and closing mechanism (7) is installed above the front end of the conveyor bracket (11), and a sealing device (8) is installed at the bottom of the packaging bag exhaust and closing mechanism (7); The flip guide groove includes a vertical guide groove for feeding bags at the opening (22), a direction-changing oblique guide groove (23) and a vertical guide groove for picking up bags (24). The bottom of the left end of the rear side of the control box (21) is provided with a vertical guide groove for picking up bags (24). The center of the top of the rear side of the control box (21) is provided with a vertical guide groove for feeding bags at the opening (22). The bottom of the vertical guide groove for feeding bags at the opening (22) is connected to the top of the vertical guide groove for picking up bags (24) through the direction-changing oblique guide groove (23) which is arranged to be lower on the left and higher on the right. The control power assembly includes a control cylinder (29), a vertical rail (25) is installed on the right side of the control box (21), the vertical rail (25) is slidably connected to the slide (26), the slide (26) is fixedly connected to the right end of the control horizontal plate (27), and a vertical control cylinder (29) is installed on the top of the control box (21), and the telescopic end of the bottom of the control cylinder (29) extends into the control box (21) and is connected to the top of the control horizontal plate (27); The ninety-degree flip guide assembly includes a flip shaft (212), the left end of the control horizontal plate (27) is rotatably connected to the longitudinal flip shaft (212), the rear end of the flip shaft (212) is fixedly connected to one end of the flip plate (28), the rear side of the other end of the flip plate (28) is fixedly connected to the front end of the support shaft (210), the rear end of the support shaft (210) passes through the flip guide groove and extends to the rear side of the control box (21), the part of the support shaft (210) located in the flip guide groove is sleeved with a guide sleeve (211), and the guide sleeve (211) is slidably connected to the flip guide groove; The packaging bag adsorption mechanism (3) on the front side of the flip shaft (212) is driven to move upward by the flip shaft (212), and at the same time, the supporting shaft (210) also lifts the packaging bag follower opening control mechanism (4) to move upward synchronously, thereby driving the packaging bag adsorption mechanism (3) at the front end of the packaging bag follower opening control mechanism (4) to move upward synchronously; The packaging bag follow-up opening control mechanism (4) includes a support cylinder (45), a vertical rail 2 (41) is fixedly connected to the top of the rear side of the control box (21), a limited stopper (43) is fixedly connected to the bottom of the vertical rail 2 (41), a slide seat 2 (42) is slidably connected to the vertical rail 2 (41), and the slide seat 2 (42) is fixedly connected to a follow-up horizontal sleeve (44), the left end of the follow-up horizontal sleeve (44) is slidably connected to the right end of the L-shaped bent rod (46), and a horizontal support cylinder (45) is installed on the rear side of the follow-up horizontal sleeve (44), and the telescopic end on the left side of the support cylinder (45) is fixedly connected to the rear side of the L-shaped bent rod (46).

2. The packaging equipment for a filling and sealing machine according to claim 1, characterized in that: The packaging bag adsorption mechanism (3) includes a suction cup (310), and the front end of the L-shaped bent rod (46) and the front end of the flip shaft (212) are respectively installed with two transverse extension rods (37) through two longitudinal fine-tuning components. The two extension rods (37) are arranged correspondingly on the left and right, and the ends of the two extension rods (37) close to each other are respectively fixedly connected to two longitudinal sleeves (38). The front and rear ends of each longitudinal sleeve (38) are respectively slidably connected to two spacing slides (39). The two spacing slides (39) are connected to the bottom of the corresponding longitudinal sleeve (38) through a suction cup gap adjustment component, and the ends of the two spacing slides (39) away from the longitudinal sleeve (38) are respectively installed with two suction cups (310).

3. The packaging equipment for a filling and sealing machine according to claim 1, characterized in that: The packaging feeding mechanism (5) comprises a hopper (51), a discharge pipe (52) and a discharge control assembly. The hopper (51) is located above the rear end of the conveyor bracket (11). The bottom of the hopper (51) is connected to the top of the discharge pipe (52). The top of the discharge pipe (52) is equipped with a discharge control assembly.

4. The packaging equipment for a filling and sealing machine according to claim 3, characterized in that: The packaging bag mouth fixing mechanism (6) includes a bag mouth clamping cylinder (64), and the front and rear sides of the bottom of the discharge pipe (52) are movably connected to the tops of two opening and pressing plates (63) through a longitudinal installation shaft (62). The two opening and pressing plates (63) are arranged correspondingly on the left and right. Two opening brackets (61) are fixedly connected to both sides of the discharge pipe (52), and the two opening brackets (61) are movably connected to the tops of the two bag mouth clamping cylinders (64). The bottom ends of the two bag mouth clamping cylinders (64) are movably connected to the two opening and pressing plates (63). The bottom ends of the two opening brackets (61) are fixedly connected to two fixed clamping plates (65), and a friction lining (66) is provided on the side of the fixed clamping plate (65) close to the opening and pressing plate (63).

5. The packaging equipment for a filling and sealing machine according to claim 1, characterized in that: The packaging bag exhaust and closing mechanism (7) includes a top beam (71), which is located above the front end of the conveyor bracket (11). A vertical lifting cylinder (73) is fixedly connected to the middle of the top beam (71), and the telescopic end at the bottom of the lifting cylinder (73) is fixedly connected to the top of the exhaust and closing bracket (74). The inner side of the exhaust and closing bracket (74) is connected to the top of two rocker arms (713) through a closing and opening buffer control component. The bottom ends of the two rocker arms (713) are respectively installed with two roller frames (714). The inner bottom ends of the two roller frames (714) are respectively rotatably installed with two longitudinal exhaust and closing rollers (715). The middle of the two roller frames (714) are respectively installed with two sealing devices (8).

6. The packaging equipment for a filling and sealing machine according to claim 5, characterized in that: The closing and opening buffer control assembly includes an exhaust closing cylinder (76), two longitudinal gear shafts (711) corresponding to the left and right are rotatably connected to the two sides of the bottom of the exhaust closing bracket (74), the middle of the two gear shafts (711) are fixedly connected to two gears (712), and the two gears (712) are fixedly connected to the top of two rocker rods (713). A double-sided rack (710) is vertically slidably installed at the center of the bottom of the exhaust closing bracket (74), and the two sides of the double-sided rack (710) are respectively connected to the two The gear (712) is meshed and connected, the top of the double-sided rack (710) is connected to the bottom of the middle plate (77) through a vertical buffer telescopic rod (78), the top of the exhaust closing bracket (74) is fixedly connected to a vertical exhaust closing cylinder (76), the telescopic end of the bottom of the exhaust closing cylinder (76) is fixedly connected to the top of the middle plate (77), the outer side of the buffer telescopic rod (78) is sleeved with a tension spring (79), and the upper and lower ends of the tension spring (79) are fixedly connected to the middle plate (77) and the double-sided rack (710), respectively.

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