Full-automatic bag feeding type packaging machine

Abstract

The full-automatic bag feeding type packaging machine comprises a bag feeding assembly and a rotating disc type bag clamping assembly and further comprises a bag opening assembly, a charging assembly, a clamping and transferring assembly and a vacuumizing and heat sealing assembly which are sequentially arranged, the vacuumizing and heat sealing assembly comprises a left vacuum seat and a right vacuum seat, and a middle vacuum seat is arranged between the left vacuum seat and the right vacuum seat; the middle vacuum seat is connected with the first moving driving assembly, the middle vacuum seat and the left vacuum seat can define a left vacuumizing cavity, the middle vacuum seat and the right vacuum seat can also define a right vacuumizing cavity, and the left vacuum seat and the right vacuum seat are each internally provided with a first clamping assembly and a first heat sealing assembly. The vacuum-pumping assembly is simple in structure and reasonable in design, the specification of the vacuum-pumping assembly can be greatly reduced, production and assembly of equipment are facilitated, and all the assemblies are improved in a targeted mode, so that the action of the vacuum-pumping assembly is more stable and reliable.

Description

Technical Field

[0001] The present invention relates to packaging equipment, in particular to a full-automatic bag-feeding packaging machine. Background Art

[0002] The bag-feeding packaging machine is a common packaging equipment. It is mainly used to load the empty packaging machine with materials, and then vacuum and heat-seal the packaging bags. In order to be able to vacuum the packaging bags that are already filled with materials and continuously delivered by the transfer component, the traditional vacuum mechanism adopts a plurality of vacuum components arranged around the turntable to realize vacuuming during the rotation process after receiving the materials. The number of vacuum components required is large, resulting in a very complicated structure. The production assembly and subsequent maintenance operations are very troublesome, and the overall volume is large, and the required floor space is large, which is not convenient for layout in the workshop. In addition, the turntable bag clamping component, clamping transfer component, etc. of the traditional bag-feeding packaging machine have problems such as complex structure and poor movement stability. The present application also carries out targeted structural improvements. Summary of the Invention

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide a fully automatic bag-feeding packaging machine for solving the above problems.

[0004] For this purpose, the present invention is achieved by adopting the following scheme: A fully automatic bag-feeding packaging machine includes a bag-feeding assembly, a turntable bag clamping assembly, and also includes a bag opening assembly, a loading assembly, a clamping and transferring assembly, and a vacuum heat sealing assembly arranged in sequence. The vacuum heat sealing assembly includes a left vacuum seat and a right vacuum seat. An intermediate vacuum seat is arranged between the left and right vacuum seats. The intermediate vacuum seat is connected to a first moving drive assembly. The intermediate vacuum seat can enclose a left vacuum chamber with the left vacuum seat, and the intermediate vacuum seat can also enclose a right vacuum chamber with the right vacuum seat. A first clamping assembly and a first heat sealing assembly are both arranged in the left vacuum seat and the right vacuum seat.

[0005] The first heat sealing assembly includes a front heat sealing plate, which is arranged on a first movable frame connected to a second movable drive assembly. Both sides of the middle vacuum seat are provided with pressure plates that cooperate with the front heat sealing plate.

[0006] The turntable bag clamping assembly includes a turntable, on which a clamping jaw assembly is arranged around the turntable, the clamping jaw assembly includes a first swing block and a second swing block, a swing driving assembly and an elastic reset member are arranged corresponding to the second swing block, the first swing block is provided with a first transmission tooth, the second swing block is provided with a second transmission tooth meshing with the first transmission tooth, the first swing block is detachably provided with a second clamping assembly, and the second swing block is detachably provided with a third clamping assembly.

[0007] A transmission member is provided on the top surface of the second swing block, a clearance groove for the transmission member to pass through is provided on the turntable, and the elastic reset member is a first spring, one end of the first spring is connected to the transmission member, and the other end is connected to the turntable.

[0008] The second heat sealing assembly is also provided between the loading assembly and the vacuum heat sealing assembly, and the second heat sealing assembly includes a first telescopic rod and a second telescopic rod, one end of the first telescopic rod is connected to the first mounting bracket, the first mounting bracket is provided with a first heat sealing block, one end of the second telescopic rod is connected to the second mounting bracket, and the second mounting bracket is provided with a second heat sealing block that can cooperate with the first heat sealing block, the first telescopic rod passes through the second movable bracket and is linked to the second movable bracket through a top screw, the second telescopic rod passes through the third movable bracket and is linked to the third movable bracket through a top screw, the connecting rod driving assembly can drive the first and second movable brackets to move, and then drive the first and second telescopic rods to move, so that the first and second heat sealing blocks cooperate to perform heat sealing, the first and second telescopic rods are slidably arranged on the adjustment seat, the first and second movable brackets and the connecting rod driving assembly are also arranged in the adjustment seat, the bottom of the adjustment seat is provided with a strip groove, and the fastener is fixedly connected to the frame through the strip groove.

[0009] The second movable frame is provided with a first jackscrew hole, into which a jackscrew can be screwed and pressed tightly against the first telescopic rod; the third movable frame is provided with a second jackscrew hole, into which a jackscrew can be screwed and pressed tightly against the second telescopic rod.

[0010] The first clamping assembly includes a movable plate, the movable plate is connected to the third movable driving assembly, one end of the movable plate is provided with a first rack, and the other end is provided with a second rack, the first rack is meshed with the first gear, and the second rack is meshed with the second gear, the first and second racks are oriented in opposite directions, so that the rotation directions of the first and second gears are opposite, the first gear is connected to the first rotating shaft, and the second gear is connected to the second rotating shaft, the first rotating shaft can drive the first left clamping jaw to swing, and the frame is provided with a second left clamping jaw that cooperates with the first left clamping jaw, the second rotating shaft can drive the first right clamping jaw to swing, and the frame is provided with a second right clamping jaw that cooperates with the first right clamping jaw.

[0011] The first rotating shaft is connected to one end of the third swing block, the third swing block is provided with a first strip groove, the first left clamping jaw is provided with a first transmission pin, the first transmission pin can be slidably stuck in the first strip groove, and also includes a moving block, the moving block is connected to the fourth moving drive assembly, the moving block is hinged to one end of the first transmission arm, the other end of the first transmission arm is hinged to the sliding arm, the sliding arm is provided with a second strip groove, the frame has a positioning column passing through the second strip groove, one end of the first left clamping jaw is hinged to the sliding arm, and the second left clamping jaw is integrally formed on the sliding arm.

[0012] The clamping and transferring assembly includes a fourth movable frame, the fourth movable frame is connected to the fifth movable drive assembly, the fourth movable frame is movably provided with a lifting seat, the lifting seat is connected to the lifting drive assembly, the lifting seat is provided with a first cylinder and a second cylinder, the output end of the first cylinder drives the third rotating shaft to rotate through the transmission arm assembly, the third rotating shaft is connected to the first gear and the first clamping plate, the first gear is meshed with the second gear, the second gear is connected to the fourth rotating shaft, the fourth rotating shaft is connected to the second clamping plate, the fourth rotating shaft is connected to a limiting arm, the piston rod of the second cylinder can be against the limiting arm after being extended, and the air pressure in the second cylinder is greater than the air pressure in the first cylinder.

[0013] The transmission arm assembly includes a second transmission arm, one end of the second transmission arm is connected to the piston rod of the first cylinder, the other end of the second transmission arm is hinged to one end of the third transmission arm, the other end of the third transmission arm is hinged to one end of the fourth transmission arm, and the other end of the fourth transmission arm is connected to the third rotating shaft.

[0014] The fully automatic bag-feeding packaging machine of the above technical solution is equipped with left and right vacuum seats and a middle vacuum seat. By controlling the movement of the middle vacuum seat, it can cooperate with the left and right vacuum seats to enclose a vacuum chamber. In this way, one of the left and right vacuum seats can cooperate with the middle vacuum seat to vacuum, and the other is used to receive the packaging bags delivered subsequently. Such a cycle realizes continuous vacuum operation, which can greatly simplify the structure of the vacuum mechanism, facilitate its assembly and maintenance, and the space it occupies is smaller, which can facilitate its layout in the equipment. At the same time, the turntable bag clamping assembly, clamping and transferring assembly, etc. have been structurally improved to make its structure simpler, facilitate assembly production and layout, and ensure the stability and reliability of its operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention has the following accompanying drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 A view from another perspective; Figure 3 It is a structural diagram of the vacuum heat sealing assembly of the present invention; Figure 4 It is a structural diagram of the left vacuum seat of the present invention; Figure 5 It is a structural diagram of the turntable of the present invention; Figure 6 for Figure 5 A partial enlarged view of the area pointed by A in the middle; Figure 7 for Figure 5 A view from another perspective; Figure 8 for Figure 7 A partial enlarged view of the point where B is pointing; Figure 9 It is a structural diagram of the turntable bag clamping assembly of the present invention; Figure 10 is a cross-sectional view of the turntable bag clamping assembly of the present invention; Figure 11 for Figure 10 A partial enlarged view of the point where C is pointing; Figure 12 is a structural diagram of the second heat sealing assembly of the present invention; Figure 13 for Figure 12 The view after removing the adjustment seat; Figure 14 for Figure 13 A view from another perspective; Figure 15 for Figure 3 A view from another perspective; Figure 16 for Figure 4 A structural diagram of the first clamping assembly when it is opened; Figure 17 for Figure 16 A structural diagram showing the first clamping assembly clamping with part of the heat-sealing structure removed; Figure 18 for Figure 17 A partial enlarged view of the point where D is pointing; Figure 19 is a cross-sectional view of the third swing block of the present invention; Figure 20 It is a structural diagram of the clamping and transferring assembly of the present invention; Figure 21 for Figure 20 A partial enlarged view of the area where E is pointing. DETAILED DESCRIPTION

[0016] As shown in the figure, the present invention discloses a fully automatic bag-feeding packaging machine, which includes a bag-feeding assembly 1, a turntable bag-clamping assembly 7, and also includes a bag-opening assembly 2, a loading assembly 3, a clamping and transferring assembly 5, and a vacuum heat-sealing assembly 6 arranged in sequence. The bag-feeding assembly 1, the bag-opening assembly 2, and the loading assembly 3 are common structures of bag-feeding packaging machines on the market and belong to the prior art, so their specific structures will not be described in detail. The vacuum heat-sealing assembly 6 includes a left vacuum seat 9 and a right vacuum seat 16, and an intermediate vacuum seat 8 is provided between the left and right vacuum seats. The intermediate vacuum seat 8 is connected to the first movable drive assembly. Specifically, the first movable drive assembly includes a third cylinder 14, and the piston rod of the third cylinder 14 is connected to the intermediate vacuum seat 8. Of course, in addition to using cylinders, linear drive structures commonly used on the market, such as linear motors, synchronous belts, chains, gear rack structures, and cam structures, can also be used to drive the movement of the intermediate vacuum seat 8. A slide 17 is provided on the middle vacuum seat 8. This slide 17 cooperates with a fixed slide rail to guide the movement of the middle vacuum seat 8, enhancing its stability and smoothness. The middle vacuum seat 8 and the left vacuum seat 9 enclose a left vacuum chamber. The middle vacuum seat 8 and the right vacuum seat 16 also enclose a right vacuum chamber. Both the left vacuum seat 9 and the right vacuum seat 16 are provided with a first clamping assembly and a first heat sealing assembly.

[0017] Furthermore, the first heat-sealing assembly includes a front heat-sealing plate 12, which is mounted on a first movable frame 18. The first movable frame 18 is connected to a second movable drive assembly. A pressure plate that cooperates with the front heat-sealing plate 12 is provided on both sides of the intermediate vacuum seat 8. The second movable drive assembly is a fourth air cylinder 10, the piston rod of which is connected to the first movable frame 18. Of course, in addition to using air cylinders, common linear drive structures on the market, such as linear motors, synchronous belts, chains, rack and pinion structures, and cam structures, can also be used to drive the movement of the first movable frame 18.

[0018] Furthermore, the turntable bag clamping assembly includes a turntable 19, on which a clamping claw assembly is arranged in a circumferential manner. The clamping claw assembly includes a first swing block 24 and a second swing block 25. A swing driving assembly and an elastic reset member are provided corresponding to the second swing block 25. The first swing block 24 is provided with a first transmission tooth 29, and the second swing block 25 is provided with a second transmission tooth 30 that meshes with the first transmission tooth 29. The first swing block 24 is detachably provided with a second clamping assembly, and the second swing block 25 is detachably provided with a third clamping assembly. For example, the detachable connection between the second and third clamping assemblies is achieved by fasteners. By adopting the above structure, the clamping assembly is detachably connected to the swing block. When the clamping assembly needs to be cleaned, only the clamping assembly can be removed without dismantling the entire swing block structure, which effectively simplifies the disassembly and assembly operation and improves the user experience.

[0019] Furthermore, a transmission member 21 is provided on the top surface of the second swing block 25, and a clearance slot 22 is provided on the turntable 19 for the transmission member 21 to pass through. The elastic return member is a first spring 20, one end of which is connected to the transmission member 21 and the other end is connected to the turntable 19. This elastic return structure allows the spring and transmission member structure to be integrated into the interior of the turntable 19, effectively reducing its size and facilitating its layout within the device.

[0020] Furthermore, the swing drive assembly includes an annular ring 35 whose top surface height varies. The second swing block 25 is hinged to one end of a fifth transmission arm 32, the other end of which is connected to a swing plate 33. A support shaft 34 is provided on the turntable 19 to swingably support the swing plate 33. One end of the swing plate 33 is pressed tightly against the top surface of the annular ring 35. A roller 31 is provided on the swing plate 33, which is pressed tightly against the top surface of the annular ring 35. With this structure, as the turntable 19 rotates, the roller 31 moves on the annular ring 35. The different heights of the annular ring 35 drive the roller 31 to rise and fall, thereby driving the swing plate 33 to swing, driving the second swing block 25 to swing, and driving the first swing block 24 to swing through the transmission gear. This allows the relative positions of the first and second clamping assemblies to be adjusted, facilitating bag opening and filling or flattening the bag opening for heat sealing.

[0021] Furthermore, the third clamping assembly includes a clamping cylinder 23, which is detachably connected to the first swing block 24. A third telescopic rod 27 is provided in the clamping cylinder 23, and a second spring 36 is provided corresponding to the third telescopic rod 27. A transmission part 38 is extended from the outer wall of the third telescopic rod 27. A clearance groove 37 for the transmission part 38 to pass through is provided on the clamping cylinder 23, and a pressure plate 39 is provided corresponding to the transmission part 38. The movable driving assembly can drive the pressure plate 39 to move and squeeze the transmission part 38 to move. A rear clamping jaw 26 is fixedly provided on the clamping cylinder 23, and a front clamping jaw 28 is provided corresponding to the rear clamping jaw 26. The front clamping jaw 28 is hinged to the clamping cylinder 23, and the third telescopic rod 17 is hinged to the front clamping jaw 28. With this structure, when the pressure plate 39 is not pressing the transmission portion 38, the second spring 36 presses the transmission portion 38, driving the third telescopic rod 27 inward, so that the front clamping jaw 28 and the rear clamping jaw 26 are in a mating clamping state. When the pressure plate 39 moves to press the transmission portion 38, it compresses the second spring 36 and drives the telescopic rod 27 outward, causing the front clamping jaw 28 to swing, causing the front and rear clamping jaws to release the packaging bag. The structure of the second clamping assembly is identical to that of the first clamping assembly, so it will not be described in detail here.

[0022] Furthermore, a second heat sealing assembly is provided between the loading assembly and the vacuum heat sealing assembly. The second heat sealing assembly includes a first telescopic rod 48 and a second telescopic rod 43. One end of the first telescopic rod 48 is connected to a first mounting bracket 47. A first heat sealing block 46 is mounted on the first mounting bracket 47. One end of the second telescopic rod 43 is connected to a second mounting bracket 44. A second heat sealing block 45 that can cooperate with the first heat sealing block 46 is mounted on the second mounting bracket 44. The first telescopic rod 48 passes through the second movable bracket 55 and is connected to the second movable bracket 55 through a top screw. The first and second telescopic rods are slidably mounted on an adjustment base 40, and the first and second telescopic rods and the connecting rod driving assembly are also disposed within the adjustment base 40. The bottom of the adjustment base 40 is provided with a strip groove 41, and a fastener is passed through the strip groove 41 and fixedly connected to the frame. With the above structure, the first and second telescopic rods are driven by the driving mechanism to drive the connecting rod driving assembly to move, so that the first and second heat sealing blocks cooperate to perform heat sealing. In addition, the position of the entire heat sealing mechanism can be fine-tuned by simply loosening the fastener in the strip groove 41 to drive the adjustment base 40 to move. By loosening the top screw, the telescopic rod can be driven to move relative to the moving frame, thereby independently fine-tuning the position of the heat sealing block. After the adjustment is completed, the telescopic rod can be screwed in and the top screw is pressed to press the telescopic rod to achieve the linkage between the telescopic rod and the moving frame. Not only can the overall position of the heat sealing mechanism be fine-tuned, but the positions of the two heat sealing blocks can also be fine-tuned independently. The position of the heat sealing mechanism can be conveniently adjusted according to different usage requirements, effectively improving its flexibility of use and user experience.

[0023] Furthermore, the second movable frame 55 is provided with a first jackscrew hole 59, into which a jackscrew can be screwed and pressed against the first telescopic rod 48. The third movable frame 57 is provided with a second jackscrew hole 58, into which a jackscrew can be screwed and pressed against the second telescopic rod 43. By screwing in the jackscrew, friction is utilized to achieve linkage between the movable frame and the telescopic rod, and by unscrewing the jackscrew, the telescopic rod can be independently adjusted.

[0024] Furthermore, the connecting rod drive assembly includes a fifth cylinder 50, the piston rod of which is connected to one end of a sixth transmission arm 51, the other end of which is hinged to one end of a seventh transmission arm 52, the other end of which is hinged to a swing arm 54. A support shaft 56 is provided in the adjustment seat 40, passing through the swing arm 54, to provide swing support for the swing arm 54. One end of the swing arm 54 is hinged to one end of an eighth transmission arm 53, the other end of the eighth transmission arm 53 is hinged to the second movable frame 55, the other end of the swing arm 54 is hinged to one end of a ninth transmission arm 60, and the other end of the ninth transmission arm 60 is hinged to the third movable frame 57. By controlling the movement of the fifth cylinder 50 and transmitting the power through the transmission arm and the swing arm, the first and second movable seats can be driven to move, so that the first and second heat sealing blocks cooperate to perform heat sealing operations.

[0025] Furthermore, the adjustment seat 40 is provided with a first guide cylinder 49 and a second guide cylinder 42, the first telescopic rod 48 passes through the first guide cylinder 49, and the second telescopic rod 43 passes through the second guide cylinder 42. By providing the guide cylinder to guide the movement of the telescopic rod, the stability and reliability of the movement of the telescopic rod are ensured.

[0026] Furthermore, the first clamping assembly includes a movable plate 62, which is connected to the third movable drive assembly. In this embodiment, the third movable drive assembly includes a sixth cylinder 61, and the piston rod of the sixth cylinder 61 is connected to the movable plate 62. Of course, in addition to using a cylinder, a common linear drive structure such as a linear motor, a synchronous belt structure, a cam structure, a chain, etc. can also be used to drive the movement of the movable plate 62. A first rack 66 is provided at one end of the movable plate 62, and a second rack 63 is provided at the other end. The first rack 66 is meshed with the first gear 65, and the second rack 63 is meshed with the second gear 64. The first and second racks are oriented in opposite directions, so that the first and second gears rotate in opposite directions. The first gear 65 is connected to the first rotating shaft 71, the second gear 64 is connected to the second rotating shaft 75, the second rotating shaft 75 is connected to one end of the second swing block 74, and the first right clamp 73 is connected to the second swing block 74. The first rotating shaft 71 can drive the first left clamping jaw 69 to swing, and the frame is provided with a second left clamping jaw 67 that cooperates with the first left clamping jaw 69. The second rotating shaft 75 can drive the first right clamping jaw 73 to swing, and the frame is provided with a second right clamping jaw 72 that cooperates with the first right clamping jaw 73. By adopting the above structure, when the packaging bag containing the material is delivered to the first clamping assembly, the sixth cylinder 61 is controlled to drive the movable plate 62 to move, so that the first and second rack transmission first and second gears rotate, and then drive the first and second rotating shafts to rotate, and drive the first and second swing blocks to swing, driving the first left clamping jaw 69 and the first right clamping jaw 73 to swing, respectively cooperating with the second left clamping jaw 67 and the second right clamping jaw 72 to clamp the bag opening position of the packaging bag.

[0027] Furthermore, the first rotating shaft 71 is connected to one end of the third swing block 70. The third swing block 70 is provided with a first strip groove 83. The first left clamping jaw 69 is provided with a first transmission pin 82, which is slidably engaged in the first strip groove 83. The first left clamping jaw 69 also includes a moving block 77, which is connected to the fourth moving drive assembly. Specifically, the fourth moving drive assembly includes a fourth cylinder 10, and the piston rod of the fourth cylinder 10 is connected to the moving block 77. Of course, in addition to using a cylinder, a common linear drive structure such as a linear motor, a synchronous belt structure, a cam structure, and a chain can also be used to drive the movement of the moving block 77. The moving block 77 is hinged to one end of the first transmission arm 78, and the other end of the first transmission arm 78 is hinged to the sliding arm 79. The sliding arm 79 has a second strip groove 81. The frame has a positioning column 80 that passes through the second strip groove 81. One end of the first left clamping jaw 69 is hinged to the sliding arm 79, and the second left clamping jaw 67 is integrally formed on the sliding arm 79. By adopting the above structure, after the vacuum operation is completed, the moving block 77 is controlled to move, and the transmission is transmitted through the transmission arm 78, driving the sliding arm 79 to move under the guidance of the second strip groove 81, and then driving the first left clamping jaw 69 and the second left clamping jaw 67 to move. During the movement of the first left clamping jaw 69, the first transmission pin 82 will move in the first strip groove 83 to avoid the first left clamping jaw 69 from getting stuck. The action of the first and second left clamping jaws will drive the bag opening of the clamped packaging bag to be pulled flat, and then the subsequent heat sealing operation will be carried out to avoid wrinkles on the bag opening, thereby ensuring the quality of heat sealing and the beautiful appearance.

[0028] Furthermore, the first left clamping jaw 69 and the first right clamping jaw 73 are both provided with elastic blocks 68, which cooperate with the second left and right clamping jaws to clamp the packaging bag. This can achieve elastic contact clamping of the packaging bag and prevent the packaging bag from being damaged due to rigid contact friction during the clamping process.

[0029] Furthermore, the clamping and transferring assembly includes a fourth movable frame 88, which is connected to the fifth movable drive assembly. A lifting seat 89 is movably provided on the fourth movable frame 88, and the lifting seat 89 is connected to the lifting drive assembly. The lifting seat 89 is provided with a first cylinder 101 and a second cylinder 90. The output end of the first cylinder 101 drives the third rotating shaft 97 to rotate through the transmission arm assembly. The third rotating shaft 97 is connected to the first gear 96 and the first clamping plate 95. The first gear 96 is engaged with the second gear 92. The second gear 92 is connected to the fourth rotating shaft 93. The fourth rotating shaft 93 is connected to the second clamping plate 94. The fourth rotating shaft 93 is connected to the limiting arm 91. After the piston rod of the second cylinder 90 is extended, it can be against the limiting arm 91. The air pressure in the second cylinder 90 is greater than the air pressure in the first cylinder 101. When the clamping and transferring mechanism is in the bag-waiting state, the piston rods of the first cylinder 101 and the second cylinder 90 are in a retracted state. At this time, the first and second clamping plates are in a large-angle open state, waiting for the turntable to drive the bag mouth of the loaded packaging bag to be sent between the first and second clamping plates. Then the piston rod of the first cylinder 18 extends out, and drives the third rotating shaft 97 to rotate through the transmission arm assembly, and drives the fourth rotating shaft 93 to rotate through the gear set, thereby driving the first clamping plate 95 and the second clamping plate 94 to approach each other to clamp the bag mouth of the packaging bag. Then the fourth moving drive assembly and the lifting drive assembly are activated to drive the clamped packaging bag to the vacuum heat sealing mechanism. At this time, the piston rod of the fourth cylinder 90 has also been extended. The piston rod of the third cylinder 101 retracts inward and drives the first and second clamps to release the packaging bag. When the limiting arm 91 is in contact with the piston rod of the fourth cylinder 90, since the air pressure in the fourth cylinder 90 is greater than the air pressure in the third cylinder 101, the piston rod of the third cylinder 101 will be restricted from continuing to retract through the limiting arm, gear set and transmission arm set, so that the first and second clamps can only be opened at a small angle to avoid the first and second clamps from opening at too large an angle and colliding with the inside of the vacuum heat sealing component. Afterwards, the moving drive assembly and the lifting drive assembly drive the clamps to reset to the bag-waiting position. At this time, the piston rod of the fourth cylinder 90 retracts, and the piston rod of the third cylinder 101 can continue to retract and drive the first and second clamps to open at a large angle.

[0030] Furthermore, the transmission arm assembly includes a second transmission arm 100, one end of which is connected to the piston rod of the first cylinder 101, the other end of which is hinged to one end of the third transmission arm 99, the other end of which is hinged to one end of the fourth transmission arm 98, and the other end of which is connected to the third rotating shaft 97. By controlling the extension and retraction of the piston rod of the first cylinder 101 and transmitting the power through the transmission arm assembly, the third rotating shaft 97 can be driven to rotate clockwise or counterclockwise.

[0031] Furthermore, the fifth mobile drive assembly includes a first motor 84. The output end of the first motor 84 is connected to a drive screw 85, which is threadedly connected to a fourth mobile frame 88. A guide assembly is provided corresponding to the fourth mobile frame 88. The guide assembly is a guide post 86 that passes through the fourth mobile frame 88, and can also be a slide or rail structure. By controlling the first motor 84 to drive the drive screw 85 to rotate, the fourth mobile frame 88 can be driven to move under the guidance of the guide post 86.

[0032] Furthermore, the lifting drive assembly includes a seventh cylinder 87, the cylinder body of the seventh cylinder 87 is arranged on the fourth movable frame 88, and the piston rod of the seventh cylinder 87 is connected to the lifting seat 89. By controlling the seventh cylinder 87, the lifting seat 89 can be driven to move up and down.

[0033] The working principle of the present invention is as follows: the empty packaging bags are stacked at the bag feeding assembly 1, the clamping claw assembly of the turntable bag clamping assembly 7 rotates to the feeding belt assembly 1 to clamp the bag mouth of the empty packaging bag, and transfers it to the bag opening assembly 2 to open the bag mouth of the packaging bag, and then transfers it to the loading assembly 3 to put the material into the empty packaging bag, and then the packaging bag is sent to the clamping and transferring assembly 5. The clamping and transferring assembly clamps the packaging bag already filled with material, transfers it to the left vacuum seat 9 and releases the packaging bag. At this time, the packaging bag is positioned and clamped by the first clamping assembly in the left vacuum seat 9, and then the middle vacuum seat 8 is controlled to move toward the left vacuum seat 9, so that the middle vacuum seat 8 and the left vacuum seat 9 surround the left vacuum chamber. At this time, the negative pressure equipment performs vacuum operation on the left vacuum chamber through the left exhaust joint 11, thereby realizing the vacuum operation of the packaging bag in the left vacuum chamber. After the vacuuming is completed, the first heat sealing assembly acts to seal the packaging bag When the middle vacuum seat 8 and the right vacuum seat 16 cooperate to perform vacuuming, the clamping and transferring assembly 5 will send the subsequent packaging bag containing the material to the right vacuum seat 16, and it will be positioned and clamped by the clamping assembly in the right vacuum seat 16. After that, the first clamping assembly in the left vacuum seat 9 will release the packaging bag to complete the vacuuming and heat sealing, and the middle vacuum seat 8 will move toward the right vacuum seat 16, so that the product packaging bag will fall naturally and be collected. After that, the middle vacuum seat 8 and the right vacuum seat 16 will cooperate to enclose the right vacuum cavity. At this time, the negative pressure equipment will perform vacuuming operation on the right vacuum cavity through the right vacuum joint 15, thereby realizing the vacuuming operation of the packaging bag in the right vacuum cavity. After the vacuuming is completed, the heat sealing assembly will act to heat seal the packaging bag. When the middle vacuum seat 8 and the right vacuum seat 16 cooperate to perform vacuuming, the clamping and transferring assembly 5 will send the subsequent packaging bag to the left vacuum seat 9, and so on and so forth to realize continuous vacuuming and heat sealing operation.

[0034] This structure of the present invention, by setting left and right vacuum seats and a middle vacuum seat, can cooperate with the left and right vacuum seats to enclose a vacuum chamber by controlling the movement of the middle vacuum seat. In this way, one of the left and right vacuum seats can cooperate with the middle vacuum seat to vacuum, and the other is used to receive the packaging bags delivered subsequently. Such a cycle realizes continuous vacuum operation, which can greatly simplify the structure of the vacuum mechanism, facilitate its assembly and maintenance, and the space it requires is smaller, which can facilitate its layout in the equipment. At the same time, the turntable bag clamping assembly, clamping and transferring assembly, etc. have been structurally improved, making their structure simpler, convenient for assembly, production and layout, and ensuring the stability and reliability of their operation.

Claims

1. A fully automatic bag-feeding packaging machine, comprising a bag-feeding assembly (1) and a turntable bag-clamping assembly (7), characterized in that: The invention also includes a bag opening component (2), a loading component (3), a clamping and transferring component (5) and a vacuum heat sealing component (6) which are arranged in sequence. The vacuum heat sealing component (6) includes a left vacuum seat (9) and a right vacuum seat (16). An intermediate vacuum seat (8) is arranged between the left and right vacuum seats. The intermediate vacuum seat (8) is connected to the first moving drive component. The intermediate vacuum seat (8) can enclose a left vacuum chamber with the left vacuum seat (9). The intermediate vacuum seat (8) can also enclose a right vacuum chamber with the right vacuum seat (16). The left vacuum seat (9) and the right vacuum seat (16) are both provided with a first clamping component and a first heat sealing component.

2. The fully automatic bag-feeding packaging machine according to claim 1, characterized in that: The first heat sealing assembly comprises a front heat sealing plate (12), the front heat sealing plate (12) being arranged on a first movable frame (18), the first movable frame (18) being connected to a second movable drive assembly, and pressure plates cooperating with the front heat sealing plate (12) being arranged on both sides of the intermediate vacuum seat (8).

3. The fully automatic bag-feeding packaging machine according to claim 1, characterized in that: The turntable bag clamping assembly includes a turntable (19), a clamping claw assembly is arranged around the turntable (19), the clamping claw assembly includes a first swing block (24) and a second swing block (25), a swing driving assembly and an elastic reset member are arranged corresponding to the second swing block (25), the first swing block (24) is provided with a first transmission tooth (29), the second swing block (25) is provided with a second transmission tooth (30) meshing with the first transmission tooth (29), the first swing block (24) is detachably provided with a second clamping assembly, and the second swing block (25) is detachably provided with a third clamping assembly.

4. The fully automatic bag-feeding packaging machine according to claim 3, characterized in that: A transmission member (21) is provided on the top surface of the second swing block (25), a clearance groove (22) for the transmission member (21) to pass through is provided on the turntable (19), and the elastic return member is a first spring (20), one end of the first spring (20) is connected to the transmission member (21), and the other end is connected to the turntable (19).

5. The fully automatic bag-feeding packaging machine according to claim 1, characterized in that: A second heat sealing assembly is also provided between the loading assembly and the vacuum heat sealing assembly. The second heat sealing assembly comprises a first telescopic rod (48) and a second telescopic rod (43). One end of the first telescopic rod (48) is connected to a first mounting frame (47). A first heat sealing block (46) is mounted on the first mounting frame (47). One end of the second telescopic rod (43) is connected to a second mounting frame (44). A second heat sealing block (45) that can cooperate with the first heat sealing block (46) is mounted on the second mounting frame (44). The first telescopic rod (48) passes through the second movable frame (55) and is connected to the second movable frame (55) through the top. The first and second telescopic rods are slidably arranged on the adjustment seat (40), and the first and second mobile frames and the connecting rod driving assembly are also arranged in the adjustment seat (40). The bottom of the adjustment seat (40) is provided with a strip groove (41), and the fastener passes through the strip groove (41) and is fixedly connected to the frame.

6. The fully automatic bag-feeding packaging machine according to claim 5, characterized in that: The second movable frame (55) is provided with a first top screw hole (59), and the top screw can be screwed into the first top screw hole (59) and pressed tightly against the first telescopic rod (48). The third movable frame (57) is provided with a second top screw hole (58), and the top screw can be screwed into the second top screw hole (58) and pressed tightly against the second telescopic rod (43).

7. The fully automatic bag-feeding packaging machine according to claim 1, characterized in that: The first clamping assembly includes a movable plate (62), which is connected to the third movable drive assembly. A first rack (66) is provided at one end of the movable plate (62), and a second rack (63) is provided at the other end. The first rack (66) is meshed with the first gear (65), and the second rack (63) is meshed with the second gear (64). The first and second racks are oriented in opposite directions, so that the first and second gears rotate in opposite directions. The first gear (65) is connected to the first rotating shaft (71), and the second gear (64) is connected to the second rotating shaft (75). The first rotating shaft (71) can drive the first left clamping jaw (69) to swing. A second left clamping jaw (67) that cooperates with the first left clamping jaw (69) is provided on the frame. The second rotating shaft (75) can drive the first right clamping jaw (73) to swing. A second right clamping jaw (72) that cooperates with the first right clamping jaw (73) is provided on the frame.

8. The fully automatic bag-feeding packaging machine according to claim 7, characterized in that: The first rotating shaft (71) is connected to one end of the third swing block (70), the third swing block (70) is provided with a first strip groove (83), the first left clamping jaw (69) is provided with a first transmission pin (82), the first transmission pin (82) can be slidably inserted into the first strip groove (83), and further includes a moving block (77), the moving block (77) is connected to the fourth moving drive assembly, the moving block (77) is hinged to one end of the first transmission arm (78), the other end of the first transmission arm (78) is hinged to the sliding arm (79), the sliding arm (79) is provided with a second strip groove (81), the frame has a positioning column (80) passing through the second strip groove (81), one end of the first left clamping jaw (69) is hinged to the sliding arm (79), and the second left clamping jaw (67) is integrally formed on the sliding arm (79).

9. The fully automatic bag-feeding packaging machine according to claim 1, characterized in that: The clamping and transferring assembly includes a fourth mobile frame (88), the fourth mobile frame (88) is connected to the fifth mobile drive assembly, a lifting seat (89) is movably provided on the fourth mobile frame (88), the lifting seat (89) is connected to the lifting drive assembly, a first cylinder (101) and a second cylinder (90) are provided on the lifting seat (89), the output end of the first cylinder (101) drives the third rotating shaft (97) to rotate through the transmission arm assembly, and the third rotating shaft (90) 7) is connected to a first gear (96) and a first clamping plate (95), the first gear (96) is meshed with the second gear (92), the second gear (92) is connected to a fourth rotating shaft (93), the fourth rotating shaft (93) is connected to the second clamping plate (94), the fourth rotating shaft (93) is connected to a limit arm (91), the piston rod of the second cylinder (90) can be extended to abut against the limit arm (91), and the air pressure in the second cylinder (90) is greater than the air pressure in the first cylinder (101).

10. The fully automatic bag-feeding packaging machine according to claim 9, characterized in that: The transmission arm assembly comprises a second transmission arm (100), one end of the second transmission arm (100) is connected to the piston rod of the first cylinder (101), the other end of the second transmission arm (100) is hinged to one end of the third transmission arm (99), the other end of the third transmission arm (99) is hinged to one end of the fourth transmission arm (98), and the other end of the fourth transmission arm (98) is connected to the third rotating shaft (97).

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