High-viscosity material filling complete machine

Abstract

The utility model provides a high viscosity material filling whole machine belongs to high viscosity material packing equipment technical field, solves the problem of slow high viscosity material filling speed, pipeline easy to block, low sealing box forming processing efficiency, high equipment cost, large energy consumption of prior art, including the machine body that the inlet is provided with carton piece library, the front of paper box pull forming mechanism that the lower part of carton piece library is arranged is provided with core mould rotation tower, the top of core mould rotation tower is provided with carton bottom heater, carton bottom pre -folding mechanism and carton bottom seal mechanism, the front of paper box conveying mechanism is provided with capping mechanism and weld cover device, the front of capping mechanism is provided with high viscosity material filling mechanism, sealing top corrugated welding device and top lug forming device in proper order, and top lug forming device export is connected with the out -of -box conveying mechanism, it is reasonable in design, compact structure, can prevent filling pipeline block, avoid material residue, equipment integration degree is high, space utilization is reasonable, energy saving, sealing box forming effect is good, and processing efficiency is high.

Description

Technical Field

[0001] This invention belongs to the technical field of packaging equipment for high-viscosity materials, and specifically relates to a complete machine for filling high-viscosity materials. Background Technology

[0002] Currently, high-viscosity liquid materials (such as hand sanitizer) suffer from poor flowability, making rapid filling difficult. The high viscosity also leads to slow filling speeds and difficulty in controlling filling accuracy. Furthermore, the structure of existing filling equipment is not effectively suited for filling high-viscosity materials, which easily clog filling pipelines and valves. High-viscosity material often remains at the filling outlet, causing stringing and bubbling, and can also drip randomly onto the packaging box surface, resulting in waste and contamination. Additionally, the top sealing and capping of existing brick-shaped cardboard boxes typically requires two sets of equipment: a folding and welding machine for sealing the top, and a separate capping machine for welding the cap to the outside of the top after sealing. Moreover, the top lugs of brick-shaped cardboard boxes are formed by heating the surface with hot air before bonding, which can cause denaturation and activation of the PE layer of the cardboard box material during the hot air heating process, affecting the sealing effect. Existing traditional methods and equipment not only have low processing efficiency in carton forming, high equipment costs, and high energy consumption, but also require a large overall footprint, have a high failure rate, and exhibit poor product quality stability. Therefore, it is necessary to improve the structure of existing high-viscosity material filling equipment. Summary of the Invention

[0003] This invention addresses the aforementioned problems by providing a high-viscosity material filling machine that prevents filling pipeline blockage, ensures accurate filling volume, and provides a stable and rapid filling process. It effectively avoids material residue at the filling outlet; utilizes hot melt adhesive to bond the top ear, preventing any impact on the stability of the packaging carton material; boasts high equipment integration, efficient space utilization, energy saving, excellent carton sealing effect, high processing efficiency, strong applicability, and stable product quality.

[0004] The technical solution adopted in this invention is as follows: the high-viscosity material filling machine includes a machine body, characterized in that: a paper box sheet magazine is provided at the inlet of the machine body, a paper box pull-out forming mechanism is provided at the lower part of the paper box sheet magazine, and a core mold rotating tower is provided in front of the paper box pull-out forming mechanism; a paper box bottom heater, a paper box bottom pre-folding mechanism, and a paper box bottom sealing mechanism are arranged sequentially along the rotation direction of the rotating tower around the upper periphery of the core mold rotating tower; a demolding mechanism is provided directly below the core mold rotating tower, and the demolding mechanism is located at the inlet end of the paper box conveying mechanism; and mutually cooperating self-... The system includes an automatic capping mechanism and an ultrasonic cap welding device. The inlet end of the automatic capping mechanism is connected to the outlet end of the continuous cap feeding device above it. A high-viscosity material filling mechanism is also provided in front of the automatic capping mechanism and in the middle of the carton conveying mechanism. The inlet end of the high-viscosity material filling mechanism is connected to the outlet end of the filling cylinder above it. A top-sealing folding welding device is provided in front of the high-viscosity material filling mechanism along the carton conveying direction. A top-ear forming device is provided in front of the top-sealing folding welding device. The outlet of the top-ear forming device is connected to the carton conveying mechanism. A cantilevered operating box is also provided at the entrance of the machine body.

[0005] The high-viscosity material filling mechanism includes a filling frame with a horizontally arranged filling cylinder. A pusher piston is movably mounted inside the filling cylinder, and the pusher piston is connected to the telescopic end of a rotary servo electric cylinder located externally at the rear end of the filling cylinder. A vertically arranged filling riser is located at the lower outlet of the front end of the filling cylinder, and a filling tee is located at the upper inlet of the front end of the filling cylinder. The side opening of the filling tee is connected to the lower part of the filling cylinder via a filling pipe, and an automatically opening filling piston assembly is located between the filling pipe and the side opening of the filling tee. A vertically arranged discharge piston rod assembly is located at the upper opening of the filling tee, and the lower end of the discharge piston rod assembly closes the discharge port of the filling riser. A filling lifting mechanism for lifting and lowering the packaging carton is located directly below the filling riser, and a guide frame for guiding the packaging carton is located on the outer side of the filling riser.

[0006] The discharge piston rod assembly includes a discharge blowing piston rod disposed inside the filling riser. The upper end of the discharge blowing piston rod is connected to the telescopic end of the discharge cylinder disposed at the upper opening of the filling tee. The upper end of the discharge cylinder is also provided with a blowing pipe connection port, which is connected to the through cavity inside the discharge blowing piston rod. The discharge blowing piston rod includes a hollow rod body. The upper part of the hollow rod body is provided with a discharge cylinder connection part, and the lower end of the hollow rod body is provided with a filling pipe outlet sealing plug. The lower side of the filling pipe outlet sealing plug is provided with a blowing outlet, which is connected to the blowing inlet at the upper end of the discharge cylinder connection part through the central through cavity inside the hollow rod body. A plug sealing ring is also provided on the outer side of the filling pipe outlet sealing plug. The discharge cylinder connection part connects the discharge blowing piston rod to the discharge cylinder, and the discharge cylinder drives the discharge blowing piston rod to move up and down. Then, the discharge outlet of the injection riser is temporarily sealed by the injection pipe outlet sealing plug set at the lower end of the hollow rod.

[0007] The injection piston assembly includes a guide connecting seat fixedly disposed inside the injection connecting housing. An injection conical piston is disposed below the guide connecting seat. The injection piston rod of the injection conical piston is movably inserted into the through hole in the middle of the guide connecting seat. An injection plug return spring is disposed between the guide connecting seat and the injection piston rod. The upper end of the injection plug return spring is fixedly connected to the injection piston rod through a spring limiting pin. The guide connecting seat is provided with several sets of connecting seat locking protrusions, and a connecting seat material passage space is provided between two adjacent sets of connecting seat locking protrusions.

[0008] The capping folding and welding device includes a capping folding frame, on which a cardboard centering mechanism is provided for centering and positioning the packaging cardboard on the cardboard conveying mechanism. Above the cardboard centering mechanism and along the cardboard conveying direction, a pre-folding mechanism and a folding extrusion mechanism are arranged in sequence. A capping welding mechanism is also provided on the side of the folding extrusion mechanism, and a folding holding mechanism is provided between the capping welding mechanism and the folding extrusion mechanism. A capping foam suction nozzle is provided above the welding part of the capping welding mechanism. The capping foam suction nozzle is connected to a foam suction fan through a foam suction pipe. A foam liquid separation tank for temporarily storing foam is provided between the exhaust port of the foam suction fan and the capping foam suction nozzle.

[0009] The carton alignment mechanism includes carton alignment frames arranged on both sides of the packaging carton. An alignment cylinder is located on the side of the alignment frame away from the packaging carton. The cylinder body of the alignment cylinder is fixedly connected to the top folding frame, and the telescopic end of the alignment cylinder is connected to the carton alignment frame. Furthermore, two pairs of carton alignment clamps are arranged on the side of the carton alignment frame closest to the packaging carton. A carton folding alignment cavity is provided between the two alignment clamps in each pair. The pre-folding mechanism includes vertically arranged pre-folding cylinders. The cylinder body of the pre-folding cylinder is fixedly mounted on the top folding frame, and the pre-folding... The lower telescopic end of the folding cylinder is provided with an L-shaped pre-folding plate; the folding and extrusion mechanism includes a dual-axis extrusion cylinder, which is arranged in a horizontal direction perpendicular to the paper box conveying direction. The two ends of the dual-axis extrusion cylinder are respectively provided with a front extrusion block and a rear extrusion block arranged opposite to each other; the upper side of the cylinder body of the dual-axis extrusion cylinder is connected to the extrusion cylinder connecting plate, and the extrusion cylinder connecting plate is connected to the lower telescopic end of the extrusion connecting plate lifting cylinder arranged vertically on the top folding frame. The extrusion cylinder connecting plate is also slidably connected to the guide rod sliding sleeve fixedly installed on the top folding frame through the extrusion connecting plate lifting guide rod.

[0010] The capping welding mechanism includes a capping welding frame. An ultrasonic transducer is mounted at one end of the frame, and an ultrasonic welding head is mounted at the front end of the transducer. A floating pressure sealing plate is also mounted in front of the ultrasonic welding head, and the floating pressure sealing plate is movably connected to the other end of the capping welding frame. A folded top welding space is provided between the ultrasonic welding head and the floating pressure sealing plate. The folded top welding space corresponds to the outlet position of the folded holding mechanism, and the capping foam suction nozzle is located directly above the folded top welding space. The ultrasonic transducer also... The shifting slide is slidably mounted on the welding shifting slide rail, which is arranged horizontally perpendicular to the carton conveying direction. The welding shifting slide is connected to the telescopic end of the welding shifting cylinder. The floating sealing plate includes a sealing plate body. The rear side of the sealing plate body is connected to a spherical groove at the end of the sealing welding frame via a hemispherical floating block. The front side of the sealing plate body has a sealing contact surface for contacting the ultrasonic welding head. Furthermore, a lid clearance space is provided on the sealing plate body behind the sealing contact surface. After the top of the pre-folded and compressed carton exits from the exit position of the folding and holding mechanism, the welding shifting cylinder drives the welding shifting slide, along with its ultrasonic transducer and ultrasonic welding head, to move forward along the welding shifting slide rail. The ultrasonic welding head and the floating sealing plate work together to ultrasonically weld and seal the top of the carton within the folded top welding space.

[0011] The top ear forming device includes a top ear forming frame positioned above the carton conveying mechanism. The top ear forming frame has a vertically arranged forming mechanism connecting back plate, and the forming mechanism connecting back plate has a ring-shaped forming mechanism circulating guide rail. Several sets of top ear forming mechanisms for forming the top ear of the packaging carton are movably mounted on the forming mechanism circulating guide rail. Each top ear forming mechanism is connected to the output end of a top ear forming servo motor via a forming transmission mechanism. A top sealing and smoothing mechanism and a smoothing and anti-deformation support frame are respectively provided on both sides of the carton inlet end of the top ear forming frame, and the top ear... The box-in end of the forming frame is equipped with a sealing glue gun, and the box-out end of the top ear forming frame is equipped with a carton forming outlet for connection with the box-out conveying mechanism. The forming transmission mechanism includes two sets of parallel forming annular transmission chains. One end of each forming annular transmission chain is equipped with a forming drive sprocket, and the middle of the forming drive sprocket is equipped with a forming drive shaft. The forming drive shaft is connected to the output end of the top ear forming servo motor. An annular chain guide rail is also provided between the forming drive shaft and the forming driven shaft to guide the forming annular transmission chain. The forming drive sprocket connected to the forming drive shaft is driven by the top ear forming servo motor to rotate, thereby driving the two sets of parallel forming annular transmission chains to rotate synchronously. This, in turn, drives each set of top ear forming mechanisms to move cyclically along the annular forming mechanism circulation guide rail provided on the forming mechanism connecting back plate, thereby using the top ear forming mechanism to continuously press and form the two sides of the packaging carton and the top ear after glue application.

[0012] The top ear forming mechanism includes a transmission chain connector for connection to the forming transmission mechanism. The transmission chain connector is connected to the links of the forming annular transmission chain of the forming transmission mechanism via a link connection portion. A guide wheel connector is provided on one side of the transmission chain connector. The guide wheel connector is connected to an annular forming mechanism circulating guide rail provided on the back plate of the forming mechanism via two sets of upper and lower forming mechanism circulating guide wheels. A lifting frame mounting base is provided on the other side of the transmission chain connector. A forming lifting frame is movably mounted below the lifting frame mounting base and is sleeved on a vertically arranged lifting frame guide rod. A lifting frame drive unit is provided on the side facing the back plate of the forming mechanism; the upper end of the lifting frame guide rod is inserted into the lifting frame guide sleeve on the lifting frame mounting base, and the lower end of the lifting frame guide rod is fixedly provided with a top contact positioning block of the paper box. The top contact positioning block of the paper box is provided with a lid positioning arc-shaped opening. Symmetrically arranged top ear forming pressure claws are respectively hinged on the left and right sides of the top contact positioning block of the paper box. Furthermore, the top ear forming pressure claws are also hinged to the left and right sides of the forming lifting frame through pressure claw drive connecting rods. A lifting frame return spring is provided between the lower side of the forming lifting frame and the upper side of the top contact positioning block of the paper box. The transmission chain connector and the lifting frame mounting base are connected to two corresponding links on two sets of parallel-arranged forming annular transmission chains via the chain link connection part, so as to realize the cyclic movement of the top ear forming mechanism with the forming annular transmission chain; and the reciprocating lifting of the forming lifting frame along the lifting frame guide rod drives the top contact positioning block of the carton to move up and down. At the same time, the pressure claws hinged on the left and right sides of the forming lifting frame drive the connecting rod to drive the top ear forming pressure claws hinged on the left and right sides of the top contact positioning block of the carton to close or open.

[0013] The molding mechanism is connected to the back plate of the molding mechanism, which has a molding mechanism arrangement cavity in the middle. The periphery of the molding mechanism arrangement cavity is provided with a ring-shaped lifting frame drive groove. The lifting frame drive part includes a lifting frame drive rod on the molding lifting frame. The end of the lifting frame drive rod is provided with a groove-fitting roller for cooperating with the lifting frame drive groove. The lifting frame drive groove is a closed ring structure. The lifting frame drive groove includes a molding claw opening straight section groove located at the top. A molding claw closing straight section groove is provided below the molding claw opening straight section groove. The two ends of the molding claw closing straight section groove are respectively provided with an upwardly and inclined molding claw closing oblique groove and a molding claw opening oblique groove. The upper ends of the molding claw opening oblique groove and the molding claw closing oblique groove are respectively connected to the two ends of the molding claw opening straight section groove through a molding claw opening transition arc groove. The lifting frame of the forming mechanism, which uses grooves and rollers to move within the grooves of the lifting frame connected to the back plate, changes the vertical position of the forming lifting frame, thereby driving the top of the cardboard box to contact the positioning block and the forming claws on both sides of it to move.

[0014] The beneficial effects of this invention are as follows: Because this invention employs a machine body with a cardboard sheet magazine at the inlet, a core mold rotating tower is located in front of the cardboard box pull-out forming mechanism arranged below the cardboard sheet magazine; a cardboard box bottom heater, a cardboard box bottom pre-folding mechanism, and a cardboard box bottom sealing mechanism are located above the core mold rotating tower; a capping mechanism and a cap welding device are located in front of the cardboard box conveying mechanism; a high-viscosity material filling mechanism, a top-sealing folding and welding device, and a top ear forming device are sequentially located in front of the capping mechanism; and the outlet of the top ear forming device is connected to the box conveying mechanism, its design is reasonable and compact. This design prevents blockage of the filling pipeline, ensures accurate filling volume, and provides a smooth and fast filling process, effectively avoiding material residue at the filling outlet. Using hot melt adhesive to bond the top ear avoids affecting the stability of the packaging cardboard box material. The equipment has high integration, reasonable space utilization, energy saving, good sealing and forming effect, high processing efficiency, strong applicability, and stable product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one structure of the present invention.

[0016] Figure 2 yes Figure 1 A schematic diagram of a high-viscosity material injection mechanism.

[0017] Figure 3 yes Figure 2 A partial structural diagram of the upper part of the injection and lifting mechanism.

[0018] Figure 4 yes Figure 3 Internal structural cross-sectional view.

[0019] Figure 5 yes Figure 4 A schematic diagram of the structure of the discharge blowing piston rod in the process.

[0020] Figure 6 yes Figure 5 Internal structural cross-sectional view.

[0021] Figure 7 yes Figure 4 A schematic diagram of the injection piston assembly in a process.

[0022] Figure 8 yes Figure 2 A schematic diagram of the injection lifting mechanism in the process.

[0023] Figure 9 yes Figure 3 A schematic diagram of a guide box frame structure.

[0024] Figure 10 yes Figure 1A schematic diagram of a top-sealing folding welding device.

[0025] Figure 11 yes Figure 10 A partial structural diagram of the lower part of the structure.

[0026] Figure 12 yes Figure 11 A schematic diagram of the connection structure of the paper box centering mechanism, pre-folding mechanism and folding extrusion mechanism.

[0027] Figure 13 yes Figure 12 A-direction view.

[0028] Figure 14 yes Figure 12 A schematic diagram of a cardboard box centering mechanism.

[0029] Figure 15 yes Figure 12 A schematic diagram of the front extrusion block and the rear extrusion block in a process.

[0030] Figure 16 yes Figure 11 A schematic diagram of a connection structure between the capping welding mechanism and the folding retaining mechanism in the design.

[0031] Figure 17 yes Figure 16 View B.

[0032] Figure 18 yes Figure 17 The C-direction view.

[0033] Figure 19 yes Figure 1 A schematic diagram of a top ear forming device.

[0034] Figure 20 yes Figure 19 The D-direction view.

[0035] Figure 21 yes Figure 20 A partial structural diagram of the capping and smoothing mechanism and the smoothing and anti-deformation support frame.

[0036] Figure 22 yes Figure 20 A schematic diagram of a connection structure between the top ear forming mechanism and the forming mechanism connecting back plate.

[0037] Figure 23 yes Figure 22 The E-direction view.

[0038] Figure 24 yes Figure 22 A schematic diagram of a structure in which the molding mechanism connects to the back plate.

[0039] Figure 25 yes Figure 22 A schematic diagram of the top ear forming mechanism in the middle.

[0040] Figure 26 yes Figure 25 The F-direction view.

[0041] Figure 27 yes Figure 25 The front view.

[0042] The numbers in the diagram are as follows: 1. Machine body; 2. Carton sheet magazine; 3. Carton pull-out forming mechanism; 4. Carton bottom heater; 5. Carton bottom pre-folding mechanism; 6. Core mold rotating tower; 7. Carton bottom sealing mechanism; 8. Packaging carton; 9. Demolding mechanism; 10. Carton conveying mechanism; 11. Ultrasonic cap welding device; 12. Automatic capping mechanism; 13. Continuous cap feeding device; 14. Filling cylinder; 15. High-viscosity material filling mechanism; 16. Top sealing and folding welding device; 17. Top ear forming device; 18. Carton delivery conveying mechanism; 19. Cantilever control box; 20. Filling frame; 21. Injection pipe; 22. Injection piston assembly; 23. Pipeline cleaning cylinder; 24. Discharge piston rod assembly; 25. Injection tee; 26. Injection cylinder body; 27. Injection observation window; 28. Push piston; 29. ​​Rotary servo electric cylinder; 30. Filling riser. 31 Guide box frame, 32 Filling and lifting mechanism, 33 Paper box position sensor, 34 Injection connection housing, 35 Guide connection seat, 36 Discharge cylinder, 37 Air blowing pipe connection port, 38 Discharge air blowing piston rod, 39 Hollow rod body, 40 Discharge cylinder connection part, 41 Air blowing inlet, 42 Filling pipe outlet sealing plug, 43 Central cavity, 44 Air blowing outlet, 45 Plug sealing ring, 46 Injection piston rod, 47 Injection conical piston, 48 Injection plug return spring, 49 Spring limit pin, 50 Lifting mechanism connecting frame, 51 Spacer plate, 52 Lifting servo motor, 53 Lifting synchronous belt, 54 Lifting pulley, 55 Belt body connecting seat, 56 Filling and lifting rod, 57 Lifting guide sleeve, 58 Paper box lifting suction cup, 59 Anti-torsion guide rod, 60 Frame connecting base, 61 L-shaped support frame, 62 guide box connecting frame, 63 guide box rollers, 64 carton lifting space, 65 top-sealed folding frame, 66 carton centering mechanism, 67 pre-folding mechanism, 68 folding and extrusion mechanism, 69 folding holding mechanism, 70 top-sealed welding mechanism, 71 top-sealed foam suction nozzle, 72 foam suction pipeline, 73 foam suction fan, 74 foam liquid separator, 75 centering cylinder, 76 carton centering frame, 77 pre-folding cylinder, 78L-shaped pre-folded plate, 79 extrusion cylinder connecting plate, 80 dual-axis extrusion cylinder, 81 front extrusion block, 82 rear extrusion block, 83 extrusion connecting plate lifting cylinder, 84 extrusion connecting plate lifting guide rod, 85 carton centering plate, 86 carton folding centering cavity, 87 extrusion block body, 88 folded extrusion end face, 89 box lid clearance notch, 90 folded retaining plate, 91 folded top through gap, 92 top sealing welding frame, 93 ultrasonic transducer, 94 floating pressure sealing plate, 95 ultrasonic welding head, 96 folded top welding space, 9 7. Welding displacement slide block; 98. Welding displacement slide rail; 99. Welding displacement cylinder; 100. Sealing plate body; 101. Sealing contact surface; 102. Lid clearance space; 103. Hemispherical floating block; 104. Spherical groove; 105. Top ear forming frame; 106. Top sealing and smoothing mechanism; 107. Smoothing and anti-deformation support frame; 108. Sealing glue gun; 109. Forming mechanism connecting back plate; 110. Forming mechanism circulating guide rail; 111. Top ear forming mechanism; 112. Top ear forming servo motor; 113. Carton forming outlet; 114. Smoothing... 115 Smoothing Cylinder, 116 Smoothing Push Claw, 117 Box Cover Clearance Opening, 118 Anti-deformation Bending Support Plate, 119 Forming Annular Drive Chain, 120 Forming Drive Sprocket, 121 Forming Drive Sprocket Shaft, 122 Forming Driven Sprocket, 123 Forming Driven Sprocket Shaft, 124 Annular Chain Guide Rail, 125 Forming Mechanism Arrangement Cavity, 126 Forming Pressing Claw Opening Straight Section Slot, 127 Forming Pressing Claw Opening Transition Arc Slot, 128 Forming Pressing Claw Closing Inclined Slot, 129 Forming Pressing Claw Closing Straight Section Slot, 130 Forming 131 Pressing claw opening groove, 132 Transmission chain connector, 133 Chain link connector, 134 Guide wheel connector, 135 Forming mechanism circulating guide wheel, 136 Lifting frame mounting base, 137 Lifting frame guide sleeve, 137 Forming lifting frame, 138 Lifting frame guide rod, 139 Top contact positioning block of paper box, 140 Top ear forming pressing claw, 141 Pressing claw drive linkage, 142 Lifting frame return spring, 143 Lifting frame drive rod, 144 Groove mating roller, 145 Box cover positioning arc-shaped opening, 146 Guide rod limit stop. Detailed Implementation

[0043] according to Figures 1-27The specific structure of the present invention is described in detail below. The high-viscosity material filling machine includes a body 1 with a cardboard sheet magazine 2 at the inlet, and a cantilevered operating box 19 on the side of the inlet of the body 1. A cardboard sheet magazine 2 is located at the lower part of a cardboard sheet magazine 2, and a core mold rotating tower 6 is located in front of the cardboard sheet magazine 3. Around the upper periphery of the core mold rotating tower 6, a cardboard bottom heater 4, a cardboard bottom pre-folding mechanism 5, and a cardboard bottom sealing mechanism 7 are arranged sequentially along the rotation direction of the tower. A demolding mechanism 9 is located directly below the core mold rotating tower 6, and is situated at the inlet end of the cardboard conveying mechanism 10. An automatic capping mechanism 12 and an ultrasonic cap welding device 11 are respectively arranged on the front and rear sides of the front part of the cardboard conveying mechanism 10, and the inlet end of the automatic capping mechanism 12 is connected to the outlet end of the continuous cap feeding device 13 above it.

[0044] A high-viscosity material filling mechanism 15 is also provided in front of the automatic capping mechanism 12 and in the middle of the carton conveying mechanism 10. The high-viscosity material filling mechanism 15 includes a filling frame 20, on which a horizontally arranged filling cylinder 26 is provided. A pusher piston 28 is movably installed inside the filling cylinder 26. The pusher piston 28 is connected to the telescopic end of a rotary servo electric cylinder 29 provided on the rear side of the filling cylinder 26. A filling observation window 27 is also provided at the front end of the filling cylinder 26 so that the operator can observe the situation inside the filling cylinder 26 through the transparent filling observation window 27. At the lower front outlet of the filling cylinder 26, a vertically arranged filling riser 30 is installed. On the filling frame 20, at the side of the lower outlet of the filling riser 30, a carton position sensor 33 is installed. The position of the packaging carton 8 is determined by the carton position sensor 33. If the position of the packaging carton is abnormal, an alarm will be triggered and filling will be stopped. At the upper front inlet of the filling cylinder 26, a filling tee 25 is installed. The side port of the filling tee 25 is connected to the lower part of the filling cylinder 14 above through a filling pipe 21.

[0045] An automatically opening injection piston assembly 22 is installed inside the injection connection housing 34 between the injection pipe 21 and the side port of the injection tee 25 of the high-viscosity material injection mechanism 15. The injection piston assembly 22 includes a guide connecting seat 35 fixedly installed inside the injection connection housing 34. An injection conical piston 47 is located below the guide connecting seat 35. The injection piston rod 46 of the injection conical piston 47 is movably inserted into the central through hole of the guide connecting seat 35. An injection plug return spring 48 is provided between the guide connecting seat 35 and the injection piston rod 46. The upper end of the injection plug return spring 48 is fixedly connected to the injection piston rod 46 via a spring limiting pin 49. The guide connecting seat 35 is provided with several sets of connecting seat engaging protrusions, and a connecting seat material passage space is provided between adjacent sets of connecting seat engaging protrusions. Furthermore, the rotary servo electric cylinder 29 drives the pusher piston 28 installed inside the injection cylinder 26 to reciprocate, thereby changing the pressure inside the injection cylinder 26. This pressure change, along with the reset force of the injection plug return spring 48, drives the injection cone piston 47 of the injection piston assembly 22 to reciprocate up and down along the injection piston rod 46, opening or closing the entire injection piston assembly 22. This allows material to flow through the material passage space between the connecting protrusions of adjacent sets of connecting seats on the guide connecting seat 35 and through the central cavity 43 of the injection connecting housing 34. Simultaneously, a vertically arranged pipeline cleaning cylinder 23 is also installed on the upper part of the injection connecting housing 34 of the injection piston assembly 22. The telescopic end of the lower part of the pipeline cleaning cylinder 23 is connected to the upper end of the injection piston rod 46.

[0046] The upper opening of the injection tee 25 is provided with a vertically arranged discharge piston rod assembly 24, the lower end of which can seal the discharge port of the injection riser 30. The discharge piston rod assembly 24 is composed of a discharge blowing piston rod 38 disposed inside the injection riser 30. The upper end of the discharge blowing piston rod 38 is connected to the telescopic end of the discharge cylinder 36 disposed at the upper opening of the injection tee 25. The upper end of the discharge cylinder 36 is also provided with a blowing pipe connection port 37, which is connected to the through cavity inside the discharge blowing piston rod 38. The discharge blowing piston rod 38 is composed of a hollow rod body 39. A discharge cylinder connection part 40 is located at the upper part of the hollow rod body 39, and a filling pipe outlet sealing plug 42 is located at the lower end of the hollow rod body 39. An air blowing outlet 44 is located on the lower side of the filling pipe outlet sealing plug 42. The air blowing outlet 44 is connected to the air blowing inlet 41 at the upper end of the discharge cylinder connection part 40 through a central cavity 43 inside the hollow rod body 39. A plug sealing ring 45 is also provided on the outer side of the filling pipe outlet sealing plug 42. Thus, the discharge blowing piston rod 38 is connected to the discharge cylinder 36 via the discharge cylinder connection part 40, and the discharge cylinder 36 drives the discharge blowing piston rod 38 to move up and down, so as to temporarily open or close the discharge port at the lower end of the filling pipe 30 by using the filling pipe outlet sealing plug 42 at the lower end of the hollow rod body 39; and the high pressure gas in the compressed air pipeline connected to the blowing pipeline connection port 37 is transmitted to the filling pipe outlet sealing plug 42 at the lower end of the discharge blowing piston rod 38 by the channel formed by the blowing inlet 41, the middle cavity 43 and the blowing outlet 44, thereby blowing and cleaning the high viscosity material remaining at the discharge port of the filling pipe 30.

[0047] Directly below the filling riser 30 of the high-viscosity material filling mechanism 15, a filling lifting mechanism 32 is installed to drive the packaging carton 8 to rise and fall. The filling lifting mechanism 32 is composed of a lifting mechanism connecting frame 50, on which a vertically arranged filling lifting rod 56 is installed. The upper part of the filling lifting rod 56 is connected to the spacer plate 51 at the top of the lifting mechanism connecting frame 50 through a lifting guide sleeve 57. The lower part of the filling lifting rod 56 is fixedly connected to the belt body of an annular lifting synchronous belt 53 arranged along the lifting direction of the lifting rod through a belt body connecting seat 55. The shaft of the lifting pulley 54 at the upper end of the annular lifting synchronous belt 53 is connected to the output end of the lifting servo motor 52; the shaft of the lifting pulley 54 at the lower end of the annular lifting synchronous belt 53 is connected to the pulley tensioning frame through a bearing, and the pulley tensioning frame is also equipped with a tension adjusting bolt. Furthermore, the filling lifting rod 56 is located at its upper end above the partition plate 51 and is equipped with a carton lifting suction cup 58. The lower end of the filling lifting rod 56 is equipped with a lifting vacuum connection port. Additionally, an anti-torsion guide rod 59 is provided on the side of the filling lifting rod 56. The anti-torsion guide rod 59 is arranged parallel to the lifting rod, with its upper part fixedly connected to the partition plate 51 and its lower part slidably connected to the side of the belt connecting seat 55. Thus, the lifting servo motor 52 drives the lifting synchronous belt 53 to rotate, causing the belt connecting seat 55 fixedly connected to the belt surface and the filling lifting rod 56 thereon to move up and down along the lifting guide sleeve 57. In the process of high-speed filling of high-viscosity materials, the carton lifting suction cup 58 at the upper end of the filling lifting rod 56 drives the packaging carton 8 to move up and down. Meanwhile, the reciprocating sliding of the belt connecting seat 55 on the anti-torsion guide rod 59 prevents the filling lifting rod 56 from twisting during high-speed lifting, ensuring the stability of the packaging carton 8 during lifting. A guide frame 31 for guiding the lifting of the packaging carton 8 is also provided on the outside of the filling riser 30. The guide frame 31 is composed of a frame connecting base 60, on which two sets of L-shaped support frames 61 are provided. A vertically arranged carton lifting space 64 is provided inside the L-shaped support frame 61, and two sets of guide connecting frames 62 are respectively provided at the diagonal positions of the rectangular cross-section of the carton lifting space 64. Several sets of vertically arranged guide rollers 63 are respectively provided on the guide connecting frames 62, each set of guide rollers 63 including longitudinal rollers and transverse rollers.

[0048] A capping folding and welding device 16 is provided in front of the high-viscosity material filling mechanism 15 along the conveying direction of the packaging carton 8. The capping folding and welding device 16 includes a capping folding frame 65, on which a carton centering mechanism 66 is provided for centering and positioning the packaging carton 8 on the carton conveying mechanism 10. The carton alignment mechanism 66 includes a carton alignment frame 76 on the front and rear sides of the packaging carton 8 on the carton conveying mechanism 10. On the side of the carton alignment frame 76 away from the packaging carton 8, an alignment cylinder 75 is provided. The cylinder body of the alignment cylinder 75 is fixedly connected to the top folding frame 65, and the telescopic end of the alignment cylinder 75 is connected to the carton alignment frame 76. On the side of the carton alignment frame 76 close to the packaging carton 8, two sets of paired (four in total, two in a group) carton alignment plates 85 are provided. Between the two carton alignment plates 85 in each pair, a carton folding alignment cavity 86 for holding the packaging carton 8 is provided. Furthermore, by extending and retracting the centering cylinder 75, the carton centering frame 76 and the two sets of carton centering clamps 85 on it are driven to reciprocate, so as to position and clamp the two packaging cartons 8 located below the pre-folding mechanism 67 and the folding and pressing mechanism 68 respectively, thereby maintaining the positional accuracy of the corresponding packaging cartons 8 during the pre-folding mechanism 67 and the folding and pressing mechanism 68 pre-folding and pressing the top of the packaging cartons 8 below them respectively.

[0049] Above the carton centering mechanism 66 of the top-sealing folding and welding device 16, along the carton conveying direction, are sequentially arranged a pre-folding mechanism 67 and a folding extrusion mechanism 68 for performing step-by-step forming operations on the top of the packaging carton 8. The pre-folding mechanism 67 includes a vertically arranged pre-folding cylinder 77, the cylinder body of which is fixedly mounted on the top-sealing folding frame 65, and an L-shaped pre-folding plate 78 is provided at the telescopic end of the lower part of the pre-folding cylinder 77. The folding extrusion mechanism 68 includes a dual-axis extrusion cylinder 80 (clamping cylinder), which is arranged in a horizontal direction perpendicular to the carton conveying direction; the dual-axis extrusion cylinder 80 is located at both ends of the front and rear sides of the packaging carton 8, and a front extrusion block 81 and a rear extrusion block 82 are respectively arranged opposite to each other. The front extrusion block 81 and the rear extrusion block 82 have the same external structure. Both the front extrusion block 81 and the rear extrusion block 82 include an extrusion block body 87. The extrusion block body 87 is provided with a folded extrusion end face 88 on the side facing the packaging carton 8. The folded extrusion end face 88 of the front extrusion block 81 is also provided with a lid avoidance notch 89 in the middle. The folded extrusion end faces 88 on the front extrusion block 81 and the rear extrusion block 82 are used to extrude the top of the packaging carton 8 after pre-folding. In the process of extruding the top of the packaging carton 8, the lid of the packaging carton 8 is avoided by the lid avoidance notch 89 provided on the front extrusion block 81. The upper side of the cylinder body of the dual-axis extrusion cylinder 80 is connected to the extrusion cylinder connecting plate 79, which is connected to the telescopic end of the lower part of the extrusion connecting plate lifting cylinder 83, which is vertically arranged on the top folding frame 65. Furthermore, the extrusion cylinder connecting plate 79 is also slidably connected to the guide rod sliding sleeve fixedly installed on the top folding frame 65 via the vertically arranged extrusion connecting plate lifting guide rod 84. Thus, by extending and retracting the extrusion connecting plate lifting cylinder 83, the extrusion cylinder connecting plate 79 and the dual-axis extrusion cylinder 80 on it are driven to reciprocate up and down along the extrusion connecting plate lifting guide rod 84. The dual-axis extrusion cylinder 80 drives the front extrusion block 81 and the rear extrusion block 82, respectively installed on the two telescopic ends, to move relative to or away from each other, thereby extruding and forming the top of the packaging carton 8, which has been pre-folded and held by the centering mechanism.

[0050] The folding and extrusion mechanism 68 is also provided with a capping welding mechanism 70 on the outer side along the carton conveying direction. A capping foam suction nozzle 71 is provided above the welding part of the capping welding mechanism 70. The capping foam suction nozzle 71 is connected to the foam suction fan 73 through the foam suction pipe 72. A foam liquid separation tank 74 for temporarily storing foam is provided between the exhaust port of the foam suction fan 73 and the capping foam suction nozzle 71. A drain port is also provided at the bottom of the foam liquid separation tank 74. Meanwhile, a folding and holding mechanism 69 is provided between the capping welding mechanism 70 and the folding and extrusion mechanism 68. The folding and holding mechanism 69 includes two sets of symmetrically arranged folding and holding plates 90, and a folding top passage gap 91 is provided between the two sets of folding and holding plates 90. The folding top passage gap 91 provided between the two sets of folding and holding plates 90 is used to maintain the shape of the top of the pre-folded and extruded packaging box 8 and prevent it from loosening before welding, so that the capping welding mechanism 70 can perform ultrasonic welding on the top of the formed packaging box 8. The sealing welding mechanism 70 includes a sealing welding frame 92. An ultrasonic transducer 93 is provided at one end of the sealing welding frame 92. An ultrasonic welding head 95 is provided at the front end of the ultrasonic transducer 93 facing the packaging carton 8. A floating sealing plate 94 is also provided in front of the ultrasonic welding head 95. The floating sealing plate 94 is composed of a sealing plate body 100. The rear side of the sealing plate body 100 is connected to the spherical groove 104 provided at the other end of the sealing welding frame 92 through a hemispherical floating block 103. A sealing contact surface 101 for contacting the ultrasonic welding head 95 is provided on the front side of the sealing plate body 100. Furthermore, a lid clearance space 102 is provided on the sealing plate body 100 and behind the sealing contact surface 101. Furthermore, during the ultrasonic welding sealing process, the arc-shaped spherical connection structure between the hemispherical floating block 103 of the sealing plate body 100 and the spherical groove 104 at the end of the sealing welding frame 92 is used to flexibly adjust the contact position between the floating sealing plate 94 and the ultrasonic welding head 95, thereby improving the welding quality.

[0051] A folded top welding space 96 is provided between the ultrasonic welding head 95 of the sealing folding welding device 16 and the floating pressure sealing plate 94. The folded top welding space 96 corresponds to the outlet position of the folded top through the gap 91 of the folding holding mechanism 69, and the sealing foam suction nozzle 71 is located directly above the folded top welding space 96. The ultrasonic transducer 93 is also slidably mounted on two welding shift slides 98 via a welding shift slide 97. The two welding shift slides 98 are arranged in a horizontal direction perpendicular to the carton conveying direction. The welding shift slide 97 is connected to the extension end of the welding shift cylinder 99. A carton position sensor 33 is also provided on the rear side of the floating pressure sealing plate 94 and at the end of the sealing welding frame 92 for determining the position of the packaging carton 8 and sending control signals to the sealing welding mechanism 70. After the top of the pre-folded and compressed packaging carton 8 exits from the outlet position of the folding and holding mechanism 69, the welding displacement cylinder 99 drives the welding displacement slide 97, along with its ultrasonic transducer 93 and ultrasonic welding head 95, to move forward along the welding displacement slide rail 98. The ultrasonic welding head 95, in conjunction with the floating sealing plate 94, then ultrasonically welds and seals the top of the packaging carton 8 within the folded top welding space 96. Furthermore, before ultrasonic welding, the sealing foam suction nozzle 71 can be used to apply negative pressure to the top of the packaging carton 8 before sealing. If the filling material has a lot of foam, the negative pressure suction of the sealing foam suction nozzle 71 will remove the remaining foam from the top of the packaging carton 8. Even without foam, the negative pressure suction of the sealing foam suction nozzle 71 can create a negative pressure state in the air at the top of the packaging carton 8, resulting in a better, more aesthetically pleasing, and non-expanding sealing effect. This also facilitates the subsequent forming of the top ear, ensuring the quality of the welded seal.

[0052] A top ear forming device 17 is also provided in front of the top folding welding device 16. The top ear forming device 17 includes a top ear forming frame 105 provided above the carton conveying mechanism 10. The top ear forming frame 105 is provided with a top smoothing mechanism 106 and a smoothing and anti-deformation support frame 107 on the front and rear sides of the box entry end near the top folding welding device 16, respectively. The top-sealing and smoothing mechanism 106 includes a smoothing cylinder support 114. A smoothing cylinder 115 is arranged on the smoothing cylinder support 114 in a horizontal direction perpendicular to the carton conveying direction. A smoothing pusher 116 is fixedly provided at the telescopic end of the smoothing cylinder 115. A lid clearance opening 117 is also provided in the middle of the smoothing pusher 116. The telescopic movement of the smoothing cylinder 115 drives the smoothing pusher 116 to extend and retract, so as to use the smoothing pusher 116 to push and smooth the top of the packaging carton 8 after the top is sealed and welded, in preparation for the subsequent glue application and molding of the top ear. Furthermore, the smoothing and anti-deformation support frame 107 is composed of an anti-deformation bending support plate 118. The anti-deformation bending support plate 118 is located on the opposite side of the position corresponding to the top smoothing mechanism 106, and the lower end of the anti-deformation bending support plate 118 is fixedly connected to the frame of the carton conveying mechanism 10, while the upper end of the anti-deformation bending support plate 118 contacts the side wall of the packaging carton 8. Thus, during the process of the top smoothing mechanism 106 pushing and smoothing the top of the packaging carton 8, the anti-deformation bending support plate 118 located on the other side supports the side wall of the packaging carton 8, effectively preventing deformation of the packaging carton 8. At the same time, the box-entry end of the top ear forming frame 105 is also equipped with a sealing glue gun 108 for spraying hot melt glue onto both sides of the top of the packaging carton 8.

[0053] A vertically arranged forming mechanism connecting back plate 109 is provided on the top ear forming frame 105. A ring-shaped forming mechanism circulating guide rail 110 is provided on the side of the forming mechanism connecting back plate 109 away from the carton conveying mechanism 10. Several sets of top ear forming mechanisms 111 for forming the top ear of the packaging carton 8 are movably arranged on the forming mechanism circulating guide rail 110. The top ear forming mechanism 111 is connected to the output end of the top ear forming servo motor 112 via a forming transmission mechanism consisting of two sets of parallel-arranged forming ring transmission chains 119. One end of the forming ring transmission chain 119 is provided with a forming drive sprocket 120, and the middle of the forming drive sprocket 120 is provided with a forming drive shaft 121, which is connected to the output end of the top ear forming servo motor 112. The other end of the forming ring transmission chain 119 is provided with a forming driven sprocket 122, and the middle of the forming driven sprocket 122 is provided with a forming driven shaft 123. The driven forming wheel shaft 123 and the driven forming wheel shaft 121 are connected to the top ear forming frame 105 via rotating bearings. A ring-shaped chain guide rail 124 is also provided between the driven forming wheel shaft 121 and the driven forming wheel shaft 123 to guide the forming ring transmission chain 119. Furthermore, the top ear forming servo motor 112 drives the driven forming sprocket 120 connected to the driven forming wheel shaft 121 to rotate, thereby driving the two sets of parallel-arranged forming ring transmission chains 119 to rotate synchronously. This causes each set of top ear forming mechanisms 111 to move cyclically along the ring-shaped forming mechanism circulation guide rail 110 provided on the forming mechanism connecting back plate 109. This allows the top ear forming mechanism 111 to continuously press and form the top ear portion on both sides of the packaging carton 8 after hot melt adhesive is applied. In other words, solidified hot melt adhesive is used for shaping, and the bonding strength can be improved by changing the type of hot melt adhesive.

[0054] The top ear forming mechanism 111 of the top ear forming device 17 includes a transmission chain connector 131. The transmission chain connector 131 is connected to the links of two sets of forming annular transmission chains 119 of the forming transmission mechanism through a link connector 132. A guide wheel connector 133 is provided on the side of the transmission chain connector 131 away from the carton conveying mechanism 10. The guide wheel connector 133 is connected to the annular forming mechanism circulating guide rail 110 provided on the forming mechanism connecting back plate 109 through two sets of upper and lower forming mechanism circulating guide wheels 134. A lifting frame mounting base 135 is provided on the other side of the transmission chain connector 131 near the carton conveying mechanism 10. A forming lifting frame 137 is movably arranged below the lifting frame mounting base 135 and is sleeved on two vertically arranged lifting frame guide rods 138. A lifting frame drive part is provided on the side of the forming lifting frame 137 facing the forming mechanism connecting back plate 109. Furthermore, the upper end of the lifting frame guide rod 138 is inserted into the lifting frame guide sleeve 136 on the lifting frame mounting base 135, and the lower end of the lifting frame guide rod 138 is fixedly provided with a cardboard box top contact positioning block 139. The cardboard box top contact positioning block 139 is provided with a box cover positioning arc-shaped opening 145. On the left and right sides of the cardboard box top contact positioning block 139, symmetrically arranged top ear forming pressure claws 140 are respectively hinged. The top ear forming pressure claws 140 are also hinged to the left and right sides of the forming lifting frame 137 through the pressure claw drive connecting rod 141. A lifting frame return spring 142 is also provided between the lower side of the forming lifting frame 137 and the upper side of the cardboard box top contact positioning block 139. Thus, the transmission chain connector 131 and the lifting frame mounting base 135 are connected to two corresponding links on two sets of parallel-arranged forming annular transmission chains 119 via the chain link connection part 132, realizing the cyclic movement of the top ear forming mechanism 111 with the forming annular transmission chain 119. The movement of the top ear forming mechanism 111 is guided by the cooperation between the forming mechanism circulating guide wheel 134 on the guide wheel connecting frame 133 and the forming mechanism circulating guide rail 110 on the forming mechanism connecting back plate 109. Furthermore, the reciprocating lifting of the forming lifting frame 137 along the lifting frame guide rod 138 drives the top contact positioning block 139 of the carton to move up and down. At the same time, the pressure claws hinged on the left and right sides of the forming lifting frame 137 drive the top ear forming pressure claws 140 hinged on the left and right sides of the top contact positioning block 139 of the carton to close or open. It is understandable that the lifting frame return spring 142 set between the forming lifting frame 137 and the top contact positioning block 139 of the cardboard box can ensure that during the downward movement of the forming lifting frame 137, the lower top contact positioning block 139 of the cardboard box first contacts the plane of the top of the packaging cardboard box 8. After contact, it drives the top ear forming claws 140 on both sides to move, ensuring the process sequence of top ear forming and ensuring product quality.

[0055] A forming mechanism arrangement cavity 125 is provided in the middle of the vertically arranged forming mechanism connecting back plate 109. A ring-shaped lifting frame drive groove is provided around the periphery of the forming mechanism arrangement cavity 125 on the side of the forming mechanism connecting back plate 109 closest to the paper box conveying mechanism 10. The lifting frame drive groove adopts a closed ring structure and includes a forming claw opening straight section groove 126 located above the arrangement cavity. Below the forming claw opening straight section groove 126 (below the arrangement cavity) is a forming claw closing straight section groove 129. At both ends of the forming claw closing straight section groove 129 are respectively provided upwardly inclined and symmetrically arranged forming claw closing inclined grooves 128 and forming claw opening inclined grooves 130. The upper ends of the forming claw opening inclined grooves 130 and the forming claw closing inclined grooves 128 are respectively connected to the two ends of the forming claw opening straight section groove 126 through two forming claw opening transition arc grooves 127. Thus, by driving the forming claw opening straight groove 126 above the lifting frame drive groove, the top ear forming claw 140 of the top ear forming mechanism 111 is kept in the open state. The forming claw closing inclined groove 128 connected to the forming claw opening transition arc groove 127 drives the top ear forming claw 140 to close and press the top ear of the packaging carton 8. The forming claw closing straight groove 129 below the lifting frame drive groove maintains the closed clamping state of the top ear forming claw 140, thereby achieving continuous pressing of the top ear for a period of time. Then, the forming claw opening inclined groove 130 and the forming claw opening transition arc groove 127 arranged at the other end are used to open the top ear forming claw 140. Then, the top ear forming mechanism 111 re-enters the forming claw opening straight groove 126 above the arrangement cavity for the next cycle.

[0056] The lifting frame drive unit on the forming lifting frame 137 is composed of a lifting frame drive rod 143. The end of the lifting frame drive rod 143 is provided with a groove-fitting roller 144 for cooperating with the lifting frame drive groove. The groove-fitting roller 144 moves within the grooves of the lifting frame drive groove of the forming mechanism connecting back plate 109 to change the vertical position of the forming lifting frame 137, thereby driving the top contact positioning block 139 of the carton below and the top ear forming claws 140 on both sides to move. Furthermore, the upper ends of the two lifting frame guide rods 138 are respectively provided with guide rod limiting blocks 146 for limiting the movement position of the top contact positioning block 139 of the carton. The guide rod limiting blocks 146 mechanically limit the descent and descent position of the top contact positioning block 139 of the carton, so as to facilitate the positioning contact of the top ear forming mechanism 111 with the top of the packaging carton 8 during the top ear forming process, and the disengagement of the top ear forming mechanism 111 from the packaging carton 8 after forming. The top ear forming frame 105 is also provided with a paper box forming outlet 113 at the box exit end, and the paper box forming outlet 113 is connected to the end of the box exit conveying mechanism 18.

[0057] When using this high-viscosity material filling machine, firstly, the carton pulling and forming mechanism 3 pulls the sheet-like carton from the bottom of the carton sheet magazine 2 into shape, and then places the pulled-out packaging carton 8 one by one onto the sealing core mold of the core mold rotating tower 6. Then, the indexing turntable of the core mold rotating tower 6 is driven to rotate in stages, and the bottom heater 4, the bottom pre-folding mechanism 5, and the bottom sealing mechanism 7 of the carton bottom around the top of the core mold rotating tower 6 are used to gradually seal the bottom of the packaging carton 8 on the sealing core mold as the indexing turntable rotates in stages. Afterwards, the demolding mechanism 9 directly below the core mold rotating tower 6 separates the bottom-sealed packaging carton 8 from the sealing core mold and downwards. The packaging carton 8 separated from the core mold rotating tower 6 is transported by the carton conveying mechanism 10 to the capping station of the automatic capping mechanism 12, and the cap delivered by the continuous capping device 13 is firmly welded to the packaging carton 8 by the ultrasonic cap welding device 11.

[0058] After the packaging carton 8 with the lid welded is conveyed forward by the carton conveying mechanism 10 to the bottom of the filling riser 30 of the high viscosity material filling mechanism 15 (filling station). Then, the lifting servo motor 52 drives the lifting synchronous belt 53 to rotate, thereby driving the filling lifting rod 56, which is connected to the belt surface of the lifting synchronous belt 53 through the belt body connecting seat 55, to rise. The carton lifting suction cup 58 at the upper end of the filling lifting rod 56 is used to drive the packaging carton 8 to rise quickly to the filling start position. Subsequently, the rotary servo electric cylinder 29 drives the pusher piston 28 in the injection cylinder 26 to move backward, thereby changing the pressure inside the injection cylinder 26. This pressure change drives the injection cone piston 47 of the injection piston assembly 22 to move downward along the injection piston rod 46, thereby opening the entire injection piston assembly 22 (at this time, the filling pipe outlet sealing plug 42 of the discharge blowing piston rod 38 inside the filling riser 30 is in the closed state), allowing the high-viscosity material in the filling cylinder 14 to flow quantitatively into the injection cylinder 26 through the injection pipe 21 and the injection connection housing 34.

[0059] Subsequently, the rotary servo electric cylinder 29 pushes the pusher piston 28 inside the injection cylinder 26 forward (at this time, the injection cone piston 47 of the injection piston assembly 22 resets upward with the reset force of the injection plug reset spring 48, closing the injection piston assembly 22 above the injection cylinder 26). Simultaneously, the discharge cylinder 36 drives the discharge blowing piston rod 38 of the discharge piston rod assembly 24 to move upward, thereby opening the filling pipe outlet sealing plug 42 at the lower end of the discharge blowing piston rod 38, so that the pushed piston inside the injection cylinder 26... The measured quantity of high-viscosity material introduced by 28 is discharged into the packaging carton 8 through the outlet at the lower end of the filling riser 30. Furthermore, during the filling process of the high-viscosity material into the packaging carton 8 via the filling riser 30, as the liquid level inside the packaging carton 8 rises, the carton lifting suction cup 58 at the upper end of the filling lifting rod 56 of the filling lifting mechanism 32 gradually pulls the packaging carton 8 downwards. Through the cooperation of the fixed filling riser 30 and the downwardly moving packaging carton 8, the filling operation is completed quickly and smoothly. Moreover, during the reciprocating lifting and lowering process of the packaging carton 8 with the filling lifting mechanism 32, several sets of guide rollers 63 on the guide frame 31 are used to guide the movement of the packaging carton 8 within the carton lifting space 64. After the packaging carton 8 descends back into the carton conveying mechanism 10 along with the filling lifting rod 56 of the filling lifting mechanism 32, high-pressure gas is blown into the air outlet 44 at the filling pipe outlet closure plug 42 at the lower end of the discharge air blowing piston rod 38 through the compressed air pipeline connected to the air blowing pipeline connection port 37. This blows the high-viscosity material remaining at the discharge port of the filling riser 30 to clean it (i.e., blows the remaining high-viscosity material directionally into the interior of the packaging carton 8), so as to avoid the high-viscosity material remaining at the discharge port of the filling riser 30, causing the residual material to drip randomly onto the surface of the packaging carton 8 or causing stringing.

[0060] After the top cap is welded and the material is filled, the packaging carton 8 moves along with the carton conveying mechanism 10 to below the pre-folding mechanism 67 of the top folding and welding device 16. Then, the carton conveying mechanism 10 temporarily stops, and the centering cylinder 75 of the carton centering mechanism 66 extends, thereby driving the carton centering frame 76 and the two sets of carton centering clamps 85 on it to position and clamp the packaging carton 8 located below the pre-folding mechanism 67 (and below the folding and pressing mechanism 68). Afterward, the pre-folding cylinder 77 of the pre-folding mechanism 67 extends downward, driving the L-shaped pre-folding plate 78 to pre-fold the top of the packaging carton 8 held by the carton centering mechanism 66. Subsequently, the centering cylinder 75 of the carton centering mechanism 66 is retracted, the packaging carton 8 is released, and the carton conveying mechanism 10 continues to convey forward one carton distance, allowing the pre-folded packaging carton 8 to move forward to below the folding and pressing mechanism 68. Then, the carton centering mechanism 66 clamps the pre-folded packaging carton 8 below the folding and extrusion mechanism 68 again (at the same time, the carton centering mechanism 66 also clamps a newly delivered packaging carton 8 below the pre-folding mechanism 67, in preparation for pre-folding); then, the extrusion connecting plate lifting cylinder 83 extends downward, allowing the extrusion cylinder connecting plate 79 and the dual-axis extrusion cylinder 80 on it to descend to the extrusion height along the extrusion connecting plate lifting guide rod 84, and retract the dual-axis extrusion cylinder 80 of the folding and extrusion mechanism 68, thereby driving the front extrusion block 81 and the rear extrusion block 82 respectively set on the two telescopic ends to move inward and relative to each other, using the folding and extrusion end faces 88 on the front extrusion block 81 and the rear extrusion block 82 to extrude and form the top of the packaging carton 8 that has been pre-folded and clamped by the centering mechanism.

[0061] After the top of the formed packaging box 8 is conveyed forward by the box conveyor 10 to the bottom of the sealing welding mechanism 70. The top shape of the packaging box 8 is maintained by the gap 91 between the two sets of folding retaining plates 90 of the folding retaining mechanism 69, so as to facilitate ultrasonic welding of the top of the formed packaging box 8. After the top of the packaging box 8, which has been pre-folded and squeezed, comes out of the outlet position of the folding retaining mechanism 69, the foam material remaining on the top of the packaging box 8 during the previous filling is first removed by the sealing foam suction nozzle 71. Then, the welding displacement cylinder 99 of the sealing welding mechanism 70 extends and drives the welding displacement slide 97 and the ultrasonic transducer 93 and ultrasonic welding head 95 on it to move forward along the welding displacement slide rail 98. Thus, the top of the packaging box 8 in the folded top welding space 96 is ultrasonically welded and sealed by the cooperation of the ultrasonic welding head 95 and the floating pressure sealing plate 94.

[0062] The packaging carton 8, after being folded and welded at the top by the sealing and welding device 16, enters the top ear forming frame 105 of the top ear forming device 17 via the carton conveying mechanism 10. Then, the carton conveying mechanism 10 pauses, extends the smoothing cylinder 115, and drives the smoothing pusher 116 to extend, thereby using the smoothing pusher 116 to push and smooth the top of the packaging carton 8 after sealing and welding. Moreover, during the process of the sealing and smoothing mechanism 106 pushing and smoothing the top of the packaging carton 8, the smoothing anti-deformation support frame 107 arranged on the other side supports the side wall of the packaging carton 8 to prevent deformation of the packaging carton 8. After being pushed and smoothed, the packaging carton 8 moves forward one carton distance with the carton conveying mechanism 10, and hot melt glue is sprayed onto both sides of the top of the packaging carton 8, which has been pushed and smoothed, using the sealing glue gun 108 provided on the side of the top ear forming frame 105. Subsequently, the two sets of forming ring transmission chains 119 driven by the top ear forming servo motor 112 drive each set of top ear forming mechanism 111 to move cyclically along the ring forming mechanism circulation guide rail 110 set on the forming mechanism connecting back plate 109. Meanwhile, the vertical position of the forming lifting frame 137 and the state of the top ear forming claw 140 are changed by the groove at the end of the lifting frame drive rod 143 on the forming lifting frame 137 and the roller 144 moving in the groove of each section of the lifting frame drive groove. That is, the top ear forming claw 140 is kept open by opening the straight section groove 126 of the forming claw, and the top ear forming claw 140 is closed and pressed against the top ear of the packaging carton 8 by using the forming claw closing transition arc groove 127 connected to the forming claw opening transition arc groove 127. The top ear forming claw 140 is closed and clamped by closing the straight section groove 129 of the forming claw, so as to achieve continuous pressing of the top ear by the top ear forming claw 140 for a period of time. As the carton conveying mechanism 10 moves forward intermittently, one carton spacing at a time, the top ear forming pressure claw 140 presses down on the top ear of the packaging carton 8 for a specified distance (duration). Then, the forming pressure claw opening groove 130 and the forming pressure claw opening transition arc groove 127 are used to open the top ear forming pressure claw 140. Subsequently, the groove at the end of the lifting frame drive rod 143 of the top ear forming mechanism 111, in conjunction with the roller 144, re-enters the upper forming pressure claw opening straight section groove 126 to prepare for the next cycle. The packaging carton 8 with the top ear formed finally enters the carton delivery conveying mechanism 18 through the carton forming outlet 113 at the carton delivery end of the top ear forming device 17.

Claims

1. A high-viscosity material filling machine, comprising a machine body, characterized in that: The machine body has a cardboard sheet magazine at its inlet, a cardboard box pull-out forming mechanism at its lower part, and a core mold rotating tower in front of the cardboard box pull-out forming mechanism. Around the top of the core mold rotating tower, a cardboard box bottom heater, a cardboard box bottom pre-folding mechanism, and a cardboard box bottom sealing mechanism are arranged sequentially along the rotation direction of the tower. A demolding mechanism is located directly below the core mold rotating tower, at the inlet end of the cardboard box conveying mechanism. On the front and rear sides of the front of the cardboard box conveying mechanism, an automatic capping mechanism and an ultrasonic cap welding device are respectively installed, with the inlet end of the automatic capping mechanism connected to the outlet end of the continuous cap feeding device above it. A further [feature / structure] is located in front of the automatic capping mechanism and in the middle of the cardboard box conveying mechanism. A high-viscosity material filling mechanism is provided, with its inlet end connected to the outlet end of a filling cylinder above it. A top-sealing folding and welding device is located in front of the high-viscosity material filling mechanism along the packaging carton conveying direction. A top-ear forming device is located in front of the top-sealing folding and welding device, and its outlet is connected to a carton conveying mechanism. A cantilevered operating box is also provided at the machine's inlet. The top-sealing folding and welding device includes a top-sealing folding frame, on which a carton centering mechanism is provided for centering and positioning the packaging cartons on the carton conveying mechanism. Above the carton centering mechanism and along the carton conveying direction, a pre-folding mechanism and a folding extrusion mechanism are sequentially arranged. The side of the folding extrusion mechanism... The system also includes a capping welding mechanism, and a folding retaining mechanism is provided between the capping welding mechanism and the folding extrusion mechanism. A capping foam suction nozzle is located above the welding section of the capping welding mechanism. The capping foam suction nozzle is connected to a foam suction fan via a foam suction pipe. A foam liquid separation tank for temporary foam storage is provided between the exhaust port of the foam suction fan and the capping foam suction nozzle. The capping welding mechanism includes a capping welding frame. An ultrasonic transducer is located at one end of the capping welding frame, and an ultrasonic welding head is located at the front end of the ultrasonic transducer. A floating pressure sealing plate is also located in front of the ultrasonic welding head, and the floating pressure sealing plate is movably connected to the other end of the capping welding frame. A folded top welding space is provided between the ultrasonic welding head and the floating pressure sealing plate. The welding space at the top of the fold corresponds to the outlet position of the fold holding mechanism, and the sealing foam nozzle is located directly above the welding space at the top of the fold; the ultrasonic transducer is also slidably mounted on the welding shift slide rail via a welding shift slide block, the welding shift slide rail is arranged in a horizontal direction perpendicular to the carton conveying direction, and the welding shift slide block is connected to the telescopic end of the welding shift cylinder; the floating sealing plate includes a sealing plate body, the rear side of the sealing plate body is connected to the spherical groove at the end of the sealing welding frame via a hemispherical floating block, the front side of the sealing plate body is provided with a sealing contact surface for contacting the ultrasonic welding head, and a cover clearance space is also provided on the sealing plate body and behind the sealing contact surface.

2. The high-viscosity material filling machine according to claim 1, characterized in that: The high-viscosity material filling mechanism includes a filling frame with a horizontally arranged filling cylinder. A pusher piston is movably mounted inside the filling cylinder, and the pusher piston is connected to the telescopic end of a rotary servo electric cylinder located externally at the rear end of the filling cylinder. A vertically arranged filling riser is located at the lower outlet of the front end of the filling cylinder, and a filling tee is located at the upper inlet of the front end of the filling cylinder. The side opening of the filling tee is connected to the lower part of the filling cylinder via a filling pipe, and an automatically opening filling piston assembly is located between the filling pipe and the side opening of the filling tee. A vertically arranged discharge piston rod assembly is located at the upper opening of the filling tee, and the lower end of the discharge piston rod assembly closes the discharge port of the filling riser. A filling lifting mechanism for lifting and lowering the packaging carton is located directly below the filling riser, and a guide frame for guiding the packaging carton is located on the outer side of the filling riser.

3. The high-viscosity material filling machine according to claim 2, characterized in that: The discharge piston rod assembly includes a discharge blowing piston rod disposed inside the filling riser. The upper end of the discharge blowing piston rod is connected to the telescopic end of the discharge cylinder disposed at the upper opening of the filling tee. The upper end of the discharge cylinder is also provided with a blowing pipe connection port, which is connected to the through cavity inside the discharge blowing piston rod. The discharge blowing piston rod includes a hollow rod body. The upper part of the hollow rod body is provided with a discharge cylinder connection part, and the lower end of the hollow rod body is provided with a filling pipe outlet sealing plug. The lower side of the filling pipe outlet sealing plug is provided with a blowing outlet, which is connected to the blowing inlet at the upper end of the discharge cylinder connection part through the central through cavity inside the hollow rod body. A plug sealing ring is also provided on the outer side of the filling pipe outlet sealing plug.

4. The high-viscosity material filling machine according to claim 2, characterized in that: The injection piston assembly includes a guide connecting seat fixedly disposed inside the injection connecting housing. An injection conical piston is disposed below the guide connecting seat. The injection piston rod of the injection conical piston is movably inserted into the through hole in the middle of the guide connecting seat. An injection plug return spring is disposed between the guide connecting seat and the injection piston rod. The upper end of the injection plug return spring is fixedly connected to the injection piston rod through a spring limiting pin. The guide connecting seat is provided with several sets of connecting seat locking protrusions, and a connecting seat material passage space is provided between two adjacent sets of connecting seat locking protrusions.

5. The high-viscosity material filling machine according to claim 1, characterized in that: The carton alignment mechanism includes carton alignment frames arranged on both sides of the packaging carton. An alignment cylinder is located on the side of the alignment frame away from the packaging carton. The cylinder body of the alignment cylinder is fixedly connected to the top folding frame, and the telescopic end of the alignment cylinder is connected to the carton alignment frame. Furthermore, two pairs of carton alignment clamps are arranged on the side of the carton alignment frame closest to the packaging carton. A carton folding alignment cavity is provided between the two alignment clamps in each pair. The pre-folding mechanism includes vertically arranged pre-folding cylinders. The cylinder body of the pre-folding cylinder is fixedly mounted on the top folding frame, and the pre-folding... The lower telescopic end of the folding cylinder is provided with an L-shaped pre-folding plate; the folding and extrusion mechanism includes a dual-axis extrusion cylinder, which is arranged in a horizontal direction perpendicular to the paper box conveying direction. The two ends of the dual-axis extrusion cylinder are respectively provided with a front extrusion block and a rear extrusion block arranged opposite to each other; the upper side of the cylinder body of the dual-axis extrusion cylinder is connected to the extrusion cylinder connecting plate, and the extrusion cylinder connecting plate is connected to the lower telescopic end of the extrusion connecting plate lifting cylinder arranged vertically on the top folding frame. The extrusion cylinder connecting plate is also slidably connected to the guide rod sliding sleeve fixedly installed on the top folding frame through the extrusion connecting plate lifting guide rod.

6. The high-viscosity material filling machine according to claim 1, characterized in that: The top ear forming device includes a top ear forming frame positioned above the carton conveying mechanism. The top ear forming frame has a vertically arranged forming mechanism connecting back plate, and the forming mechanism connecting back plate has a ring-shaped forming mechanism circulating guide rail. Several sets of top ear forming mechanisms for forming the top ear of the packaging carton are movably mounted on the forming mechanism circulating guide rail. Each top ear forming mechanism is connected to the output end of a top ear forming servo motor via a forming transmission mechanism. A top sealing and smoothing mechanism and a smoothing and anti-deformation support frame are respectively provided on both sides of the carton inlet end of the top ear forming frame, and the top ear... The box-in end of the forming frame is also equipped with a sealing glue gun, and the box-out end of the top ear forming frame is equipped with a carton forming outlet for connection with the box-out conveying mechanism; the forming transmission mechanism includes two sets of parallel forming annular transmission chains, one end of the forming annular transmission chain is equipped with a forming drive sprocket, the middle of the forming drive sprocket is equipped with a forming drive wheel shaft, the forming drive wheel shaft is connected to the output end of the top ear forming servo motor, and an annular chain guide rail is also provided between the forming drive wheel shaft and the forming driven wheel shaft for guiding the forming annular transmission chain.

7. The high-viscosity material filling machine according to claim 6, characterized in that: The top ear forming mechanism includes a transmission chain connector for connection to the forming transmission mechanism. The transmission chain connector is connected to the links of the forming annular transmission chain of the forming transmission mechanism via a link connection portion. A guide wheel connector is provided on one side of the transmission chain connector. The guide wheel connector is connected to an annular forming mechanism circulating guide rail provided on the back plate of the forming mechanism via two sets of upper and lower forming mechanism circulating guide wheels. A lifting frame mounting base is provided on the other side of the transmission chain connector. A forming lifting frame is movably mounted below the lifting frame mounting base and is sleeved on a vertically arranged lifting frame guide rod. A lifting frame drive unit is provided on the side facing the back plate of the forming mechanism; the upper end of the lifting frame guide rod is inserted into the lifting frame guide sleeve on the lifting frame mounting base, and the lower end of the lifting frame guide rod is fixedly provided with a top contact positioning block of the paper box. The top contact positioning block of the paper box is provided with a lid positioning arc-shaped opening. Symmetrically arranged top ear forming pressure claws are respectively hinged on the left and right sides of the top contact positioning block of the paper box. Furthermore, the top ear forming pressure claws are also hinged to the left and right sides of the forming lifting frame through pressure claw drive connecting rods. A lifting frame return spring is provided between the lower side of the forming lifting frame and the upper side of the top contact positioning block of the paper box.

8. The high-viscosity material filling machine according to claim 7, characterized in that: The molding mechanism is connected to the back plate of the molding mechanism, which has a molding mechanism arrangement cavity in the middle. The periphery of the molding mechanism arrangement cavity is provided with a ring-shaped lifting frame drive groove. The lifting frame drive part includes a lifting frame drive rod on the molding lifting frame. The end of the lifting frame drive rod is provided with a groove-fitting roller for cooperating with the lifting frame drive groove. The lifting frame drive groove is a closed ring structure. The lifting frame drive groove includes a molding claw opening straight section groove located at the top. A molding claw closing straight section groove is provided below the molding claw opening straight section groove. The two ends of the molding claw closing straight section groove are respectively provided with an upwardly and inclined molding claw closing oblique groove and a molding claw opening oblique groove. The upper ends of the molding claw opening oblique groove and the molding claw closing oblique groove are respectively connected to the two ends of the molding claw opening straight section groove through a molding claw opening transition arc groove.

Images