Opening circling device and process for M-edge packaging bag

Abstract

The invention relates to the technical field of M-edge packaging bag processing equipment, and discloses an opening circling device and process for an M-edge packaging bag. The packaging bag is positioned and conveyed to a film twisting mechanism through a narrow-band conveying unit and a positioning assembly, so that a bag opening of a packaging bag body and an inner film bag opening are twisted open; the bag body and the inner film of the packaging bag are subjected to integration, hot-pressing fixation and folding and buckling fixation through the M edge flattening mechanism, the aligning and ironing mechanism and the folding and buckling welding mechanism, and finally the M edge of the packaging bag is restored through the M edge flattening mechanism. A bag opening is twisted open through the film twisting mechanism, a bag body and an inner film are integrated and flattened through the M-edge flattening mechanism, the bag opening of a packaging bag is internally folded, flattened and fixed through the folding and buckling welding mechanism, the bag body and the inner film are aligned, hot-pressed and fixed through the aligning and hot-sealing mechanism, and M-edge restoration is achieved through the folding and buckling welding mechanism. The packaging bag body and the inner film can be automatically and continuously integrated, aligned and folded and buckled for opening circling, and the opening circling effect and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of M-edge packaging bag processing equipment, and in particular to a ring opening device and process for M-edge packaging bags. Background Art

[0002] M-type sealed plastic particle plastic bag is a kind of plastic packaging bag, which is very common in my country's plastic industry. With the development of my country's plastic industry, plastic packaging has also changed from the original glass bottle packaging and plastic bottle packaging to the current plastic bags and plastic bag packaging. The M-type sealed plastic particle plastic bag is not only beautiful, but also has significant anti-fall and anti-slip properties.

[0003] During the production and processing of M-edge packaging bags, the edges need to be folded inwards to make them smooth and beautiful and avoid burrs and off-line situations. However, in the existing processing process, the bag mouth is made in detail and most packaging bags are arranged in two layers, inner and outer layers. It is inevitable that manual labor will be invested in the integration of the M edges during the processing, thereby increasing labor costs. At the same time, manual labor will inevitably become tired, making the integration prone to offset, affecting the processing quality and efficiency. Therefore, a ring mouth device and process for M-edge packaging bags are proposed to solve the above problems. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides a ring opening device and process for M-edge packaging bags, which has the advantages of automatically integrating the discounted bag opening, etc., and solves the problem that the existing packaging bag opening discount equipment requires manual cooperation, resulting in poor processing efficiency and quality.

[0005] (II) Technical solution To achieve the above-mentioned object, the present invention provides the following technical solutions: a ring opening device for M-edge packaging bags, comprising a body support and a protective shell arranged thereon, characterized in that the body support is provided with a narrow belt conveyor unit, a positioning component, a film rubbing mechanism and an M-edge restoration mechanism, and the protective shell is provided with a discount welding mechanism, an alignment ironing mechanism and an M-edge flattening mechanism; The M-side restoration mechanism includes a second bracket, a supporting frame and an adjusting cylinder arranged on the body bracket. The second bracket is provided with a restoration linear guide rail. The restoration linear guide rail includes two sliders, and the slider is provided with a restoration extension cylinder. The output end of the restoration extension cylinder is provided with a bag punching plate. A restoration cylinder is also fixed on the restoration linear guide rail, and the output ends of the restoration cylinder are respectively connected with the two sliders on the restoration linear guide rail. The supporting frame is provided with a restoration three-axis cylinder. The output ends of the restoration three-axis cylinder and the output ends of the adjusting cylinder are both provided with an adjusting frame. Two stabilizing bars are slidably installed on the adjusting cylinder. The stabilizing bars are connected to the upper adjusting frame. The adjusting frame is provided with two long holes. The adjusting frame is provided with two three-eye suction cup seats, and the three-eye suction cup seats are provided with vacuum suction cups.

[0006] Preferably, the film rubbing mechanism includes a first bracket, the first bracket is provided with a film rubbing linear guide and a film rubbing cylinder, the output end of the film rubbing linear guide is provided with a film rubbing three-axis cylinder, the output end of the film rubbing three-axis cylinder is provided with a rubbing plate, and the output end of the film rubbing cylinder is connected to the output end of the film rubbing linear guide.

[0007] Preferably, the alignment and ironing mechanism includes two ironing shafts arranged on the protective shell, four ironing linear guide rails, an ironing servo motor, an ironing transition wheel and an ironing linear module arranged on the body bracket, the ironing shaft is provided with two ironing eccentric wheels, the ironing eccentric wheels are rotatably installed with ironing sleeves, the ironing shaft and the ironing servo motor output ends are both provided with ironing synchronous wheels, the ironing synchronous wheels are integrally driven and installed with ironing synchronous belts, the ironing synchronous belts are in contact with the ironing transition wheels, the output end of the ironing linear guide rail is provided with a connecting piece, and the ironing sleeve is provided with one end connected to The ironing pull rod is connected to the connecting parts, and the upper and lower connecting parts are provided with ironing bag suction cups as a whole, and the ironing bag suction cups are provided with ironing inner film suction cups. The output end of the ironing linear module is provided with an ironing carrier plate, and the ironing carrier plate is provided with two ironing linear guides. The two ironing linear guides include two sliders, and the sliders are provided with ironing brackets. The two ironing linear guides are provided with an intermediate bracket and two ironing cylinders. The output ends of the ironing cylinders are respectively connected with the two ironing brackets, and the intermediate bracket is located between the two ironing brackets, and is provided with heating blocks on the ironing brackets, and the intermediate bracket is provided with an ironing suction cup tube.

[0008] Preferably, the M-edge leveling mechanism includes a leveling linear module, a bracket connecting plate, two fixing parts, two leveling inner membrane suction cups and two leveling bag body suction cups arranged on a protective shell, the bracket connecting plate is provided with a leveling cylinder and a leveling linear guide rail, the output end of the leveling linear guide rail is provided with an L-shaped connecting plate, the output end of the leveling cylinder is connected to the L-shaped connecting plate, the L-shaped connecting plate is provided with a leveling bag body suction cup, the leveling bag body suction cup is provided with a leveling inner membrane suction cup, the other leveling bag body suction cup and the leveling inner membrane suction cup are both arranged between the two fixing parts, the output end of the leveling linear module is provided with a leveling carrier plate, the leveling carrier plate is provided with a leveling linear guide rail, a driven gear and leveling two cylinders, the leveling linear guide rail includes two sliders, and the sliders are respectively provided with slider connecting plates, the slider connecting plate is provided with a driven rack meshing with the driven gear, the slider connecting plate is provided with a leveling suction cup tube, and the output end of the leveling two cylinders is connected to any slider connecting plate.

[0009] Preferably, the discount welding mechanism includes a welding three-axis cylinder, two welding rotating shafts, a welding transition wheel, four welding linear guides, a welding servo motor, a rolled bottom plate and two welding suction cups arranged on a protective shell, the welding rotating shaft is provided with two welding eccentric wheels, the welding eccentric wheels are rotatably installed with a welding sleeve, the output end of the welding servo motor and the welding rotating shaft are both provided with welding synchronous wheels, the welding synchronous wheels are integrally driven with a welding synchronous belt, the welding transition wheel is in contact with the welding synchronous belt, the welding linear guides are grouped in pairs with an intermediate fixed plate, an ultrasonic welder is arranged inside the intermediate fixed plate, the welding sleeve is provided with a welding pull rod hinged to the intermediate fixed plate, a welding suction cup is connected to the output end of the welding three-axis cylinder, and the other welding suction cup is located below it. The bottom plate of the rolling mouth is provided with a rolling mouth linear guide rail and a rolling mouth extension cylinder. The rolling mouth linear guide rail includes two sliders, and the slider is respectively provided with a limiting movable plate and a rolling mouth movable plate connected to the output end of the rolling mouth extension cylinder. The rolling mouth movable plate is provided with a linkage cylinder connected to the limiting movable plate, two rolling mouth second linear guide rails and two first rolling mouth cylinders. The output end of the rolling mouth second linear guide rail is provided with a rolling mouth bracket connected to the output end of the first rolling mouth cylinder. The rolling mouth bracket is hinged with an L-shaped clamping plate and a second rolling mouth cylinder. The output end of the second rolling mouth cylinder is hinged with the end of the L-shaped clamping plate. The limiting movable plate is provided with a rolling mouth plug plate extending between the rolling mouth brackets. The rolling mouth plug plate is provided with two ejector brackets. The ejector bracket is provided with an ejector cylinder, and an ejector plate is provided at the output end of the ejector cylinder.

[0010] Preferably, a beading process for an M-edge packaging bag comprises the following steps: 1) The narrow belt conveyor unit and the positioning component position and transport the packaging bag to the film rubbing mechanism, so that the bag opening of the packaging bag body and the bag opening of the inner film are rubbed open; 2) The packaging bag is further transported to the M-side smoothing mechanism to integrate the bag body with the inner film and smooth the M-side of the packaging bag; 3) The packaging bag is further transported to the alignment and hot-sealing mechanism, so that the bag opening of the packaging bag body and the bag opening of the inner film are aligned and fixed by heat pressing; 4) The packaging bag is further transported to the discount welding mechanism, so that the bag mouth is folded inward and fixed flatly with the packaging bag; 5) The packaging bag is transported to the M-side recovery mechanism, and the lower vacuum suction cup and the recovery three-axis cylinder are started. The lower vacuum suction cup adsorbs the bottom of the bag opening, and the recovery three-axis cylinder drives the lower vacuum suction cup to raise the bag opening. At the same time, the adjustment cylinder drives the upper vacuum suction cup to descend and contact and adsorb the bag opening; 6) Then, the regulating cylinder and the restoring three-axis cylinder are restored, so that the upper and lower vacuum suction cups open the bag mouth, and the restoration cylinder is started to drive the two sliders on the restoration linear guide to operate relative to each other. At the same time, the restoration extension cylinder moves the bag punching plate to the specified position, so that the bag punching plate can restore the M side of the bag mouth during the relative operation; 7) After the packaging bag is restored, it is transported to the next process.

[0011] (III) Beneficial effects Compared with the prior art, the present invention provides a ring opening device and process for M-edge packaging bags, which has the following beneficial effects: 1. The beading device and process for M-edge packaging bags, through the setting of film rubbing mechanism, M-edge recovery mechanism, discount welding mechanism, alignment and ironing mechanism and M-edge flattening mechanism, can automatically and continuously integrate and align the bag body and the inner film of the packaging bag, and then automatically and continuously perform the inner discount beading, avoiding large errors caused by manual operation and improving the beading effect and efficiency; 2. The beading device and process for M-edge packaging bags, wherein the M-edge recovery mechanism and the M-edge flattening mechanism are arranged, enable the M-edge packaging bags to also perform automatic and continuous beading operations, thereby making the overall applicability and practicality of the device better. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the M-side restoration mechanism of the present invention; Figure 4 This is a schematic diagram of the bag punching plate adjustment structure of the present invention; Figure 5 This is a schematic diagram of the vacuum suction cup adjustment structure of the present invention; Figure 6 It is a schematic diagram of the structure of the film rubbing mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the discount welding mechanism of the present invention; Figure 8 It is a rear view structural schematic diagram of the discount welding mechanism of the present invention; Fig. 9 It is a schematic diagram of the adjustment structure of the L-shaped clamping plate and the ejector plate of the present invention; Fig.10 This is a schematic diagram of the structure of the alignment and ironing mechanism of the present invention; Fig.11 It is a schematic diagram of the adjustment structure of the hot-sealing inner film suction cup and the hot-sealing bag body suction cup of the present invention; Fig.12 It is a schematic diagram of the adjustment structure of the heating block and the ironing suction cup tube of the present invention; Fig.13 It is a schematic diagram of the structure of the M-edge leveling mechanism of the present invention; Fig.14 It is a schematic diagram of the connection structure between the flat inner membrane sucker and the flat bag body sucker of the present invention; Fig.15 It is a schematic diagram of the adjustment structure of the leveling suction cup tube of the present invention.

[0013] As shown in the figure: 1. Body bracket; 2. Protective shell; 3. Narrow belt conveyor unit; 4. Positioning assembly; 5. Film rubbing mechanism; 51. First bracket; 52. Film rubbing linear guide; 53. Film rubbing cylinder; 54. Film rubbing three-axis cylinder; 55. Rub-open plate; 6. Discount welding mechanism; 61. Welding shaft; 62. Welding eccentric wheel; 63. Welding sleeve; 64. Welding servo motor; 65. Welding synchronous wheel; 66. Welding transition wheel; 67. Welding synchronous belt; 68. Intermediate fixed plate; 69. Ultrasonic welder; 610. Welding linear guide; 611. Welding three-axis cylinder; 612. Welding suction cup; 613 , rolling bottom plate; 614, rolling straight guide rail; 615, limit movable plate; 616, rolling plug plate; 617, ejector bracket; 618, ejector cylinder; 619, ejector plate; 620, linkage cylinder; 621, rolling movable plate; 622, rolling second linear guide rail; 623, rolling bracket; 624, first rolling cylinder; 625, L-shaped clamp; 626, second rolling cylinder; 627, rolling extension cylinder; 628, welding pull rod; 7, alignment and ironing mechanism; 71, ironing shaft; 72, ironing eccentric wheel; 73, ironing sleeve; 74, ironing servo motor; 75, ironing synchronous wheel; 76. Ironing transition wheel; 77. Ironing synchronous belt; 78. Connecting piece; 79. Ironing linear guide rail; 710. Ironing inner film suction cup; 711. Ironing bag suction cup; 712. Ironing pull rod; 713. Ironing linear module; 714. Ironing carrier plate; 715. Ironing two linear guide rails; 716. Ironing bracket; 717. Ironing cylinder; 718. Intermediate bracket; 719. Heating block; 720. Ironing suction cup tube; 8. M-edge leveling mechanism; 81. Leveling linear module; 82. Leveling carrier plate; 83. Leveling linear guide rail; 84. Slider connecting plate; 85. Leveling suction cup tube; 86. Driven gear ;87. Driven rack;88. Leveling cylinder 2;89. Fixing piece;810. Leveling bag body suction cup;811. Leveling inner membrane suction cup;812. L-shaped connecting plate;813. Leveling two linear guides;814. Bracket connecting plate;815. Leveling cylinder 1;9. M-side restoration mechanism;91. Second bracket;92. Carrying frame;93. Restoring linear guide;94. Restoring cylinder;95. Restoring extension cylinder;96. Bag punching plate;97. Restoring three-axis cylinder;98. Adjusting cylinder;99. Stabilizing rod;910. Adjusting frame;911. Long hole;912. Three-eye suction cup seat;913. Vacuum suction cup. DETAILED DESCRIPTION

[0014] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0015] like Figure 1-15 As shown, a ring opening device for M-edge packaging bags includes a body support 1 and a protective shell 2 arranged thereon, the body support 1 is provided with a narrow belt conveyor unit 3, a positioning component 4, a film rubbing mechanism 5 and an M-edge restoration mechanism 9, and the protective shell 2 is provided with a discount welding mechanism 6, an alignment ironing mechanism 7 and an M-edge flattening mechanism 8.

[0016] In this embodiment, the M-side restoration mechanism 9 includes a second bracket 91, a carrier frame 92 and an adjusting cylinder 98 arranged on the body bracket 1. The second bracket 91 is provided with a restoration linear guide 93. The restoration linear guide 93 includes two sliders, and the slider is provided with a restoration extension cylinder 95. The output end of the restoration extension cylinder 95 is provided with a bag punching plate 96. A restoration cylinder 94 is also fixed on the restoration linear guide 93, and the output ends of the restoration cylinder 94 are respectively connected to the two restoration linear guides 93. The sliders are connected, the support frame 92 is provided with a restoring three-axis cylinder 97, and the output ends of the restoring three-axis cylinder 97 and the adjusting cylinder 98 are both provided with an adjusting frame 910, and two stabilizing rods 99 are slidably installed on the adjusting cylinder 98, and the stabilizing rods 99 are connected to the upper adjusting frame 910, and the adjusting frame 910 is provided with two long holes 911, and the adjusting frame 910 is provided with two three-eye suction cup seats 912, and the three-eye suction cup seats 912 are provided with vacuum suction cups 913.

[0017] Specifically, when the packaging bag continues to be transported to the lower vacuum suction cup 913, the lower vacuum suction cup 913 and the recovery three-axis cylinder 97 are started, and the lower vacuum suction cup 913 adsorbs the bottom of the bag opening of the packaging bag, and the recovery three-axis cylinder 97 drives the lower vacuum suction cup 913 to make the bag opening of the packaging bag rise. At the same time, the adjustment cylinder 98 operates to drive the upper vacuum suction cup 913 to descend and contact and adsorb the bag opening of the packaging bag. Then, the adjustment cylinder 98 and the recovery three-axis cylinder 97 are restored, so that the upper and lower vacuum suction cups 913 open the bag opening of the packaging bag, and the recovery cylinder 94 is started to drive the two sliders on the recovery linear guide 93 to operate relative to each other. At the same time, the recovery extension cylinder 95 moves the bag punching plate 96 to the specified position, so that the bag punching plate 96 can restore the M edge of the bag opening of the packaging bag during the relative operation.

[0018] In this embodiment, the film rubbing mechanism 5 includes a first bracket 51, the first bracket 51 is provided with a film rubbing linear guide 52 and a film rubbing cylinder 53, the output end of the film rubbing linear guide 52 is provided with a film rubbing three-axis cylinder 54, the output end of the film rubbing three-axis cylinder 54 is provided with a rubbing plate 55, and the output end of the film rubbing cylinder 53 is connected to the output end of the film rubbing linear guide 52.

[0019] Specifically, when the packaging bag is transported to the bottom of the rubbing plate 55, the film rubbing three-axis cylinder 54 drives the rubbing plate 55 to descend and contact the packaging bag. Then, the film rubbing cylinder 53 drives the slider in the film rubbing linear guide 52 to move rightward, so that the movement direction of the rubbing plate 55 is opposite to the movement direction of the packaging bag. Since there is friction between the top of the bag opening of the packaging bag and the rubbing plate 55, and there is friction between the bottom of the bag opening of the packaging bag and the narrow belt conveyor unit 3, the bag opening of the packaging bag is rubbed open.

[0020] In this embodiment, the alignment ironing mechanism 7 includes two ironing shafts 71, four ironing linear guide rails 79, an ironing servo motor 74, an ironing transition wheel 76 and an ironing linear module 713 arranged on the body bracket 1. The ironing shaft 71 is provided with two ironing eccentric wheels 72, and the ironing eccentric wheels 72 are rotatably installed with ironing sleeves 73. The output ends of the ironing shaft 71 and the ironing servo motor 74 are both provided with ironing synchronous wheels 75. The ironing synchronous wheels 75 are integrally driven and installed with ironing synchronous belts 77. The ironing synchronous belts 77 are in contact with the ironing transition wheels 76. The output end of the ironing linear guide rail 79 is provided with a connecting piece 78, and the ironing sleeve 73 is provided with an ironing pulley 75 connected to the connecting piece 78 at one end. The rod 712 and the upper and lower connecting parts 78 are all provided with a hot-sealing bag suction cup 711, and the hot-sealing bag suction cup 711 is provided with a hot-sealing inner film suction cup 710. The output end of the hot-sealing linear module 713 is provided with a hot-sealing carrier plate 714, and the hot-sealing carrier plate 714 is provided with a hot-sealing second linear guide rail 715. The hot-sealing second linear guide rail 715 includes two sliders, and the sliders are provided with a hot-sealing bracket 716. The hot-sealing second linear guide rail 715 is provided with an intermediate bracket 718 and two hot-sealing cylinders 717. The output ends of the hot-sealing cylinders 717 are respectively connected to the two hot-sealing brackets 716. The intermediate bracket 718 is located between the two hot-sealing brackets 716, and is provided with a heating block 719 with the hot-sealing bracket 716. The intermediate bracket 718 is provided with a hot-sealing suction cup tube 720.

[0021] Specifically, the packaging bag moves to between the hot sealing bag body suction cup 711 and the hot sealing inner film suction cup 710, and the hot sealing servo motor 74 is started to drive the hot sealing shaft 71 to rotate via the hot sealing synchronous wheel 75 and the hot sealing synchronous belt 77, thereby realizing the rotation of the hot sealing eccentric wheel 72, so that the upper and lower hot sealing pull rods 712 are driven by the hot sealing shaft sleeve 73 to operate relatively, so that the upper and lower connecting parts 78 drive the upper and lower hot sealing bag body suction cups 711 and the hot sealing inner film suction cups 710 to move relative to each other, and then contact the bag opening of the packaging bag body and the bag opening of the inner film respectively, and then recover to realize the opening of the bag opening of the packaging bag body and the bag opening of the inner film. At this time, the hot sealing linear module 713 drives the hot sealing carrier plate 714 The hot sealing servo motor 74 is started to make the inner film of the packaging bag contact and absorb with the hot sealing suction cup tube 720, and the hot sealing inner film suction cup 710 is closed. The hot sealing linear module 713 continues to drive and extend to push the bag opening of the inner film of the packaging bag into the bag body of the packaging bag so that the bag openings of the two are aligned. Finally, the left and right hot sealing cylinders 717 are started to drive the hot sealing bracket 716 to move in opposite directions. At the same time, the heating block 719 is started to realize that the hot sealing suction cup tube 720 will open the packaging bag as a whole, and cooperate with the hot sealing bag body suction cup 711 and the hot sealing inner film suction cup 710 to hot the bag opening of the inner film of the packaging bag and the bag opening of the bag body together.

[0022] The hot-stitching sleeve 73 is installed on the hot-stitching eccentric wheel 72 through a bearing, so that the position of the eccentric wheel changes, which will drive the hot-stitching sleeve 73 to change the position of the hot-stitching pull rod 712; the setting of the hot-stitching linear guide rail 79 allows the connecting member 78 to operate stably.

[0023] In this embodiment, the M-edge flattening mechanism 8 includes a flattening linear module 81, a bracket connecting plate 814, two fixing parts 89, two flattening inner film suction cups 811 and two flattening bag body suction cups 810 arranged on the protective shell 2, the bracket connecting plate 814 is provided with a flattening cylinder 815 and a flattening linear guide rail 813, the output end of the flattening linear guide rail 813 is provided with an L-shaped connecting plate 812, the output end of the flattening cylinder 815 is connected to the L-shaped connecting plate 812, the L-shaped connecting plate 812 is provided with a flattening bag body suction cup 810, and the flattening bag body suction cup 810 is provided with a flattening inner film Suction cup 811, another flat bag body suction cup 810 and the flat inner film suction cup 811 are all arranged between two fixing parts 89, and a flat carrier plate 82 is arranged at the output end of the flat linear module 81, and the flat carrier plate 82 is provided with a flat linear guide rail 83, a driven gear 86 and a flat two cylinder 88, and the flat linear guide rail 83 includes two sliders, and the sliders are respectively provided with slider connecting plates 84, and the slider connecting plates 84 are provided with driven racks 87 meshing with the driven gears 86, and the slider connecting plates 84 are provided with flat suction cup tubes 85, and the output end of the flat two cylinders 88 is connected to any slider connecting plate 84.

[0024] Specifically, the packaging bag moves between the upper and lower flat inner film suction cups 811 and the flat bag body suction cup 810, the flattening cylinder 815 is started to drive the L-shaped connecting plate 812 to descend so that the upper flat inner film suction cup 811 and the flat bag body suction cup 810 are respectively in contact with the inner film bag opening of the packaging bag and the bag body bag opening, so that the inner film of the packaging bag and the bag body are opened, the flattening linear module 81 is started to drive the flattening carrier plate 82 to move backward, so that the flattening suction cup tube 85 enters the inner film of the packaging bag, and the flattening cylinder 815 is started. Then, the second leveling cylinder 88 is started to drive the slider connecting plate 84 to move, so that the driven rack 87 on it drives the other driven rack 87 to move in the opposite direction via the driven gear 86, thereby realizing the two slider connecting plates 84 to move in opposite directions on the leveling straight line guide rail 83, so that the leveling suction cup tube 85 pokes out the M edge of the packaging bag, so that the bag opening of the inner film of the packaging bag and the bag opening of the bag body are fitted and leveled as a whole.

[0025] Among them, the setting of the leveling linear guide rail 83 enables the slider connecting plate 84 to operate stably, thereby making the leveling effect of the leveling suction cup tube 85 better; the setting of the leveling second linear guide rail 813 enables the leveling cylinder 815 to drive the upper leveling inner film suction cup 811 and the leveling bag body suction cup 810 to operate stably.

[0026] In this embodiment, the discount welding mechanism 6 includes a welding three-axis cylinder 611, two welding shafts 61, a welding transition wheel 66, four welding linear guides 610, a welding servo motor 64, a roll bottom plate 613 and two welding suction cups 612 arranged on the protective shell 2, the welding shaft 61 is provided with two welding eccentric wheels 62, the welding eccentric wheels 62 are rotatably installed with a welding sleeve 63, the output end of the welding servo motor 64 and the welding shaft 61 are both provided with a welding synchronous wheel 65, the welding synchronous wheel 65 is integrally driven and installed with a welding synchronous belt 67, the welding transition wheel 66 is in contact with the welding synchronous belt 67, the welding linear guides 610 are arranged in pairs with an intermediate fixed plate 68, the interior of the intermediate fixed plate 68 is provided with an ultrasonic welder 69, the welding sleeve 63 is provided with a welding pull rod 628 hinged to the intermediate fixed plate 68, a welding suction cup 612 is connected to the output end of the welding three-axis cylinder 611, and the other welding suction cup 612 is located below it, and the roll bottom plate 613 is provided with a welding pull rod 628 hinged to the intermediate fixed plate 68. A rolling mouth linear guide rail 614 and a rolling mouth extension cylinder 627 are provided. The rolling mouth linear guide rail 614 includes two sliders, and the sliders are respectively provided with a limit movable plate 615 and a rolling mouth movable plate 621 connected to the output end of the rolling mouth extension cylinder 627. The rolling mouth movable plate 621 is provided with a linkage cylinder 620 connected to the limit movable plate 615, two rolling mouth second linear guide rails 622 and two first rolling mouth cylinders 624. The output end of the rolling mouth second linear guide rail 622 is provided with a linkage cylinder 620 connected to the limit movable plate 615. The output end of the cylinder 624 is connected to a crimping bracket 623, the crimping bracket 623 is hinged with an L-shaped clamping plate 625 and a second crimping cylinder 626, the output end of the second crimping cylinder 626 is hinged with the end of the L-shaped clamping plate 625, the limiting movable plate 615 is provided with a crimping plug plate 616 extending between the crimping brackets 623, the crimping plug plate 616 is provided with two ejector brackets 617, the ejector bracket 617 is provided with an ejector cylinder 618, and the output end of the ejector cylinder 618 is provided with an ejector plate 619.

[0027] Specifically, the packaging bag is moved between the upper and lower welding suction cups 612, the welding three-axis cylinder 611 is started to open the bag mouth of the packaging bag, the roll-mouth extension cylinder 627 drives the L-shaped clamping plate 625 to move to both sides of the bag mouth of the packaging bag via the roll-mouth movable plate 621, the linkage cylinder 620 drives the roll-mouth plug plate 616 via the limit movable plate 615 to make the ejector plate 619 enter the bag mouth of the packaging bag, and the ejector cylinder 618 is started to move the ejector plate 619 to contact the inner wall of the bag mouth of the packaging bag. At the same time, the second roll-mouth cylinder 626 drives the L-shaped clamping plate 625 to rotate at the hinge with the roll-mouth bracket 623, so that one side of the inner wall of the L-shaped clamping plate 625 is parallel to the ejector plate 619 to the position shown in FIG. Fig. 9In the state shown, the first rolling cylinder 624 drives the left and right rolling brackets 623 to move relative to each other, so that the L-shaped clamping plate 625 contacts the bag opening of the packaging bag and pokes the outer wall of the bag opening into contact with the ejector plate 619. At this time, the ejector cylinder 618 drives the ejector plate 619 to retract, and the second rolling cylinder 626 retracts, so that the L-shaped clamping plate 625 continues to rotate and contacts the rolling bracket 623, and the first rolling cylinder 624 is reset, so that the bag opening of the packaging bag is stretched outwards during the folding and clamping process of the L-shaped clamping plate 625 and the rolling bracket 623, so that the middle part of the packaging bag is naturally turned inward under the action of the lateral tension; The linkage cylinder 620 is started again, so that the rolling plug plate 616 enters the inside of the bag mouth, and the welding servo motor 64 is started to drive the two welding shafts 61 to rotate through the welding synchronous wheel 65 and the welding synchronous belt 67, so that the upper and lower welding eccentric wheels 62 rotate the protrusions to the opposite side, thereby driving the welding sleeve 63 to move relative to each other, and the welding pull rod 628 drives the middle fixed plate 68 to move relative to each other, so that the upper and lower ultrasonic welders 69 move relative to each other, and the bag mouth of the packaging bag is ultrasonically welded as a whole.

[0028] It should be noted that the setting of the rolled opening plug plate 616 allows the ultrasonic welder 69 to only fold and fix the edge of the packaging bag and separate the middle of the bag opening during operation.

[0029] Among them, the setting of the welding linear guide 610 enables the middle fixed plate 68 to drive the ultrasonic welder 69 to move stably to achieve welding; the setting of the welding transition wheel 66 enables the welding synchronous belt 67 to be in close contact with the welding synchronous wheel 65, so that the welding shaft 61 can rotate stably; the setting of the second linear guide 622 of the rolling mouth enables the rolling mouth bracket 623 to be driven by the first rolling mouth cylinder 624 to move stably; the rolling mouth linear guide 614 enables the rolling mouth movable plate 621 and the limiting movable plate 615 to be limited and move stably.

[0030] In this embodiment, a beading process for an M-edge packaging bag includes the following steps: 1) The narrow belt conveyor unit 3 and the positioning component 4 position and transport the packaging bag to the film rubbing mechanism 5, so that the bag opening of the packaging bag body and the bag opening of the inner film are rubbed open; 2) The packaging bag is further transported to the M-side leveling mechanism 8, so that the bag body and the inner film are integrated and the M-side of the packaging bag is leveled; 3) The packaging bag is further transported to the alignment and ironing mechanism 7, so that the bag opening of the packaging bag body and the bag opening of the inner film are aligned and fixed by heat pressing; 4) The packaging bag is further transported to the discount welding mechanism 6, so that the bag mouth is folded inward and fixed flatly with the packaging bag; 5) The packaging bag is continuously transported to the M-side recovery mechanism 9, and the lower vacuum suction cup 913 and the recovery three-axis cylinder 97 are started. The lower vacuum suction cup 913 adsorbs the bottom of the bag opening of the packaging bag, and the recovery three-axis cylinder 97 drives the lower vacuum suction cup 913 to raise the bag opening of the packaging bag. At the same time, the regulating cylinder 98 operates to drive the upper vacuum suction cup 913 to descend and contact and adsorb the bag opening of the packaging bag; 6) Then, the regulating cylinder 98 and the restoring three-axis cylinder 97 are restored, so that the upper and lower vacuum suction cups 913 open the bag opening, and the restoring cylinder 94 is started to drive the two sliders on the restoring linear guide rail 93 to operate relative to each other. At the same time, the restoring extension cylinder 95 moves the bag punching plate 96 to the specified position, so that the bag punching plate 96 can restore the M edge of the bag opening during the relative operation; 7) After the packaging bag is restored, it is transported to the next process.

[0031] Among them, the narrow belt conveyor group 3 includes three narrow belt conveyors to realize the feeding, processing and unloading transportation of packaging bags. The multiple positioning components 4 include a positioning frame, multiple pressure wheels, multiple positioning synchronous wheels, multiple positioning synchronous belts and a reduction motor. The output end of the reduction motor drives the positioning synchronous wheel to rotate through the rotating shaft to realize the rotation of the positioning synchronous belt, and cooperates with the narrow belt conveyor to realize the positioning, processing and transportation of the packaging bags. The pressure wheel allows the packaging bags to operate close to the narrow belt conveyor during the feeding and unloading process to avoid its feeding and unloading deviation.

[0032] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ring opening device for an M-edge packaging bag, comprising a body support (1) and a protective shell (2) arranged thereon, characterized in that: The machine body support (1) is provided with a narrow belt conveyor unit (3), a positioning assembly (4), a film rubbing mechanism (5) and an M-edge restoration mechanism (9), and the protective shell (2) is provided with a discount welding mechanism (6), an alignment ironing mechanism (7) and an M-edge flattening mechanism (8); The M-side restoration mechanism (9) comprises a second support (91) arranged on the machine body support (1), a carrier frame (92) and an adjusting cylinder (98); the second support (91) is provided with a restoration linear guide rail (93); the restoration linear guide rail (93) comprises two sliders, and the sliders are provided with a restoration extension cylinder (95); the output end of the restoration extension cylinder (95) is provided with a bag punching plate (96); a restoration cylinder (94) is also fixed on the restoration linear guide rail (93), and the output ends of the restoration cylinder (94) are respectively connected to the two sliders on the restoration linear guide rail (93). The bearing frame (92) is provided with a restoring three-axis cylinder (97), and the output end of the restoring three-axis cylinder (97) and the output end of the regulating cylinder (98) are both provided with an regulating frame (910). Two stabilizing rods (99) are slidably mounted on the regulating cylinder (98), and the stabilizing rods (99) are connected to the upper regulating frame (910). The regulating frame (910) is provided with two long holes (911), and the regulating frame (910) is provided with two three-eye suction cup seats (912), and the three-eye suction cup seats (912) are provided with vacuum suction cups (913).

2. The ring opening device for M-edge packaging bags according to claim 1, characterized in that: The film rubbing mechanism (5) comprises a first bracket (51) arranged on the body bracket (1); the first bracket (51) is provided with a film rubbing linear guide rail (52) and a film rubbing cylinder (53); the output end of the film rubbing linear guide rail (52) is provided with a film rubbing three-axis cylinder (54); the output end of the film rubbing three-axis cylinder (54) is provided with a rubbing plate (55); the output end of the film rubbing cylinder (53) is connected to the output end of the film rubbing linear guide rail (52).

3. The ring opening device for M-edge packaging bags according to claim 1, characterized in that: The alignment ironing mechanism (7) comprises two ironing rotating shafts (71) arranged on the protective shell (2), four ironing linear guide rails (79), an ironing servo motor (74), an ironing transition wheel (76), and an ironing linear module (713) arranged on the body bracket (1); the ironing rotating shaft (71) is provided with two ironing eccentric wheels (72); the ironing eccentric wheels (72) are rotatably mounted with an ironing shaft sleeve (73); the output ends of the ironing rotating shaft (71) and the ironing servo motor (74) are both provided with ironing synchronous wheels (75); the ironing synchronous wheels (75) are integrally driven and mounted with an ironing synchronous belt (77); the ironing synchronous belt (77) is in contact with the ironing transition wheel (76); the output end of the ironing linear guide rail (79) is provided with a connecting piece (78); the ironing shaft sleeve (73) is provided with an ironing pull rod (75) having one end connected to the connecting piece (78); 712), the upper and lower connecting parts (78) are provided with a hot-sealing bag body suction cup (711), the hot-sealing bag body suction cup (711) is provided with a hot-sealing inner film suction cup (710), the hot-sealing linear module (713) is provided with a hot-sealing carrier plate (714) at the output end, the hot-sealing carrier plate (714) is provided with hot-sealing two linear guide rails (715), the hot-sealing two linear guide rails (715) include two sliders, and the sliders are provided with hot-sealing brackets (716), the hot-sealing two linear guide rails (715) are provided with an intermediate bracket (718) and two hot-sealing cylinders (717), the output end of the hot-sealing cylinder (717) is respectively connected to the two hot-sealing brackets (716), the intermediate bracket (718) is located between the two hot-sealing brackets (716), and both the intermediate bracket (718) and the hot-sealing bracket (716) are provided with a heating block (719), and the intermediate bracket (718) is provided with a hot-sealing suction cup tube (720).

4. The ring opening device for M-edge packaging bags according to claim 1, characterized in that: The M-edge flattening mechanism (8) comprises a flattening linear module (81) arranged on the protective housing (2), a bracket connecting plate (814), two fixing members (89), two flattening inner film suction cups (811) and two flattening bag body suction cups (810); the bracket connecting plate (814) is provided with a flattening cylinder (815) and a flattening linear guide rail (813); an L-shaped connecting plate (812) is provided at the output end of the flattening cylinder (815); the output end of the flattening cylinder (815) is connected to the L-shaped connecting plate (812); the L-shaped connecting plate (812) is provided with a flattening bag body suction cup (810); the flattening bag body suction cup (810) is provided with a flattening inner film suction cup (811); 1), another flat bag body suction cup (810) and a flat inner film suction cup (811) are both arranged between two fixing members (89), a flat carrier plate (82) is arranged at the output end of the flat linear module (81), the flat carrier plate (82) is arranged with a flat linear guide rail (83), a driven gear (86) and a flat two-cylinder (88), the flat linear guide rail (83) includes two sliders, and the sliders are respectively provided with slider connecting plates (84), the slider connecting plates (84) are provided with driven racks (87) meshing with the driven gear (86), the slider connecting plates (84) are provided with a flat suction cup tube (85), and the output end of the flat two-cylinder (88) is connected to any slider connecting plate (84).

5. The ring opening device for M-edge packaging bags according to claim 1, characterized in that: The discount welding mechanism (6) comprises a welding three-axis cylinder (611) arranged on a protective housing (2), two welding rotating shafts (61), a welding transition wheel (66), four welding linear guide rails (610), a welding servo motor (64), a rolled bottom plate (613) and two welding suction cups (612); the welding rotating shaft (61) is provided with two welding eccentric wheels (62); the welding eccentric wheels (62) are rotatably mounted with welding sleeves (63); the output end of the welding servo motor (64) and the welding rotating shaft (61) are both provided with welding synchronous wheels (65); the welding synchronous wheels ( 65) The overall transmission is installed with a welding timing belt (67), the welding transition wheel (66) is in contact with the welding timing belt (67), the welding linear guide rails (610) are arranged in pairs with an intermediate fixing plate (68) between them, an ultrasonic welder (69) is arranged inside the intermediate fixing plate (68), the welding sleeve (63) is provided with a welding pull rod (628) hinged to the intermediate fixing plate (68), a welding suction cup (612) is connected to the output end of the welding three-axis cylinder (611), another welding suction cup (612) is located below it, and the rolled bottom plate (613) is provided A rolling mouth linear guide rail (614) and a rolling mouth extension cylinder (627) are provided. The rolling mouth linear guide rail (614) includes two sliders, and the sliders are respectively provided with a limit movable plate (615) and a rolling mouth movable plate (621) connected to the output end of the rolling mouth extension cylinder (627). The rolling mouth movable plate (621) is provided with a linkage cylinder (620) connected to the limit movable plate (615), two rolling mouth second linear guide rails (622) and two first rolling mouth cylinders (624). The output end of the rolling mouth second linear guide rail (622) is provided with a linkage cylinder (620) connected to the first rolling mouth cylinder (6 24) The output end of the roll-mouth bracket (623) is connected to the roll-mouth bracket (623), the roll-mouth bracket (623) is hinged with an L-shaped clamping plate (625) and a second roll-mouth cylinder (626), the output end of the second roll-mouth cylinder (626) is hinged with the end of the L-shaped clamping plate (625), the limiting movable plate (615) is provided with a roll-mouth plug plate (616) extending between the roll-mouth bracket (623), the roll-mouth plug plate (616) is provided with two ejector brackets (617), the ejector bracket (617) is provided with an ejector cylinder (618), and the output end of the ejector cylinder (618) is provided with an ejector plate (619).

6. A beading process for M-edge packaging bags according to any one of claims 1 to 5, characterized in that: The following steps are involved: 1) The narrow belt conveyor unit (3) and the positioning component (4) position and transport the packaging bag to the film rubbing mechanism (5), so that the bag opening of the packaging bag body and the bag opening of the inner film are rubbed open; 2) The packaging bag is further transported to the M-side smoothing mechanism (8), so that the bag body and the inner film are integrated and the M-side of the packaging bag is smoothed; 3) The packaging bag is further transported to the alignment and hot-sealing mechanism (7), so that the bag opening of the packaging bag body and the bag opening of the inner film are aligned and fixed by heat pressing; 4) The packaging bag is further transported to the discount welding mechanism (6), so that the bag opening is folded inward and fixed flatly with the packaging bag; 5) The packaging bag is further transported to the M-side recovery mechanism (9), and the lower vacuum suction cup (913) and the recovery three-axis cylinder (97) are started. The lower vacuum suction cup (913) adsorbs the bottom of the bag opening of the packaging bag, and the recovery three-axis cylinder (97) drives the lower vacuum suction cup (913) to raise the bag opening of the packaging bag. At the same time, the regulating cylinder (98) operates to drive the upper vacuum suction cup (913) to descend and contact and adsorb the bag opening of the packaging bag; 6) Then, the regulating cylinder (98) and the restoring three-axis cylinder (97) are restored, so that the upper and lower vacuum suction cups (913) open the bag mouth of the packaging bag, and the restoring cylinder (94) is started to drive the two sliders on the restoring linear guide rail (93) to operate relative to each other. At the same time, the restoring extension cylinder (95) moves the bag punching plate (96) to a specified position, so that the bag punching plate (96) restores the M edge of the bag mouth of the packaging bag during the relative operation; 7) After the packaging bag is restored, it is transported to the next process.

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