Bag opening ultrasonic seaming machine

Abstract

The utility model discloses a kind of bag mouth ultrasonic wave mouth ironing machine, comprising: mouth ironing rolling assembly, drive adjusting assembly, turnover conveying assembly and stacking conveying assembly;Mouth ironing rolling assembly includes indentation roller, and indentation roller below is provided with emission plate;Drive adjusting assembly includes transmission motor head, transmission motor head inside is provided with driven sprocket, driven sprocket is rotatably connected with transmission shaft, and transmission motor head top is inserted with positioning adjusting nut;Turnover conveying assembly includes conveying frame, and conveying frame is provided with slide frame.This utility model, driven sprocket drives indentation roller to rotate, and positioning adjusting nut drives indentation roller to lift;Positioning adjusting nut drives indentation roller to position lifting, and adapt to the single side thickness of ultrasonic wave ironing bag mouth;The drop of slide frame can make aluminum film bag after bag mouth ironing to slide down and be blocked, and air flow is blown out through the air hole of conveying frame and is turned over and conveyed to conveying belt, and after stacking counting, it is conveyed to next station.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic hot-sealing machine technology, specifically to an ultrasonic hot-sealing machine for bag openings. Background Technology

[0002] An ultrasonic sealing machine is an automated device that uses ultrasonic vibration energy to heat-seal materials. Its core working principle is to convert electrical energy into high-frequency mechanical vibration through a transducer. When the vibration energy is transmitted to the contact surface of thermoplastic materials such as plastic film, non-woven fabric, and composite film to be sealed, the material molecules quickly generate local high temperature due to high-frequency friction. This achieves instantaneous melting without the need for additional preheating or consumables such as hot melt adhesive. Combined with precise pressure, it completes tight bonding and sealing. It is widely used in food packaging, medical device production, daily necessities processing, and industrial packaging.

[0003] The aluminum foil bags currently being processed consist of an outer bag made of paper-plastic coated film, a middle layer of paper-plastic aluminum film, and a two-layer inner bag made of polyethylene low-pressure film. At the bag opening, the conventional manufacturing process involves using synthetic plastic agents in multi-layer spraying and dot- or strip-like bonding on the bag-forming production line. However, this bonding process often results in defects such as glue leakage, uneven glue application, misaligned glue points, weak adhesion, and glue point detachment. This leads to problems such as difficulty opening the bag opening in the automatic filling machine, or the bag opening not being able to be opened at all. Furthermore, material may be directly poured into the bag's layers or interlayers, directly impacting the production progress of the filling line. Utility Model Content

[0004] The purpose of this utility model is to provide an ultrasonic hot-sealing machine for bag openings in order to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including: A hot-sealing rolling assembly, set on the worktable, is used to hot-seale the bag opening of the product bag to be processed; A drive adjustment component is located on one side of the hot-scalding assembly and is used to adjust and drive the hot-scalding rolling assembly to roll. A flipping conveyor assembly, located on one side of the workbench, is used to flip and convey the processed product bags. A stacked conveyor assembly, located below the flipping assembly, is used to dock and convey finished product bags; The hot-pressing rolling assembly includes vertically arranged indentation rollers, with a launching plate disposed below the indentation rollers; The drive adjustment assembly includes a transmission head, inside which multiple sets of driven sprockets are arranged in parallel. The driven sprockets are rotatably connected to the transmission shaft, so that the driven sprockets can drive the indentation roller to rotate. A positioning adjustment nut is inserted into the top of the transmission head, so that the positioning adjustment nut can drive the indentation roller to rise and fall. The flipping conveyor assembly includes a conveyor frame with air blowing holes, a sliding frame on the conveyor frame, and a drop bar inserted into the sliding frame.

[0006] As a further description of the above technical solution, the indentation roller is rotatably connected to the drive shaft, and the launching plate is disposed inside the worktable.

[0007] As a further description of the above technical solution, a pneumatic lifting bracket is provided at the bottom of one side of the transmission head, and the transmission shaft is rotatably connected to the pneumatic lifting bracket.

[0008] As a further description of the above technical solution, a drive motor is provided at the bottom of the workbench, and a drive sprocket is installed at the output end of the drive motor. The drive sprocket is rotatably connected to the driven sprocket.

[0009] As a further description of the above technical solution, a control box is provided on one side of the drive motor, and the control box is electrically connected to the transmitter board.

[0010] As a further description of the above technical solution, a main control box is provided on the other side of the drive motor, and the main control box is electrically connected to the control box, the air source and the power supply.

[0011] As a further description of the above technical solution, the top and bottom edges of the conveyor frame are provided with air blowing holes, and the conveyor frame is connected to the air source through a pipeline.

[0012] As a further description of the above technical solution, a drop stop bar is inserted at the bottom of the drop frame, and the drop stop bar is arranged axially perpendicular to the axis of the drop frame.

[0013] As a further description of the above technical solution, the stacking conveyor assembly includes a conveyor belt, a tension roller is provided inside the end of the conveyor belt near the conveyor frame, and a drive roller is provided inside the end of the conveyor belt away from the conveyor frame.

[0014] As a further description of the above technical solution, a transmission roller is provided between the tensioning roller and the drive roller, and a conveying motor is provided on one side of the drive roller, with the output end of the conveying motor rotatably connected to the drive roller.

[0015] The beneficial effects of this utility model are as follows: 1. In this utility model, multiple sets of driven sprockets are arranged in parallel inside the transmission head. The driven sprockets are rotatably connected to the transmission shaft, so that the driven sprockets can drive the indentation roller to rotate. A positioning adjustment nut is inserted at the top of the transmission head, so that the positioning adjustment nut can drive the indentation roller to rise and fall. 2. In this utility model, a positioning adjustment nut is inserted at the top of the transmission head, so that the positioning adjustment nut can drive the indentation roller to perform positioning and lifting, adjust the distance between the indentation roller and the transmitting plate, and thus adapt to the single-sided thickness of the ultrasonic hot-stamped bag opening. 3. In this utility model, the conveyor frame is equipped with air blowing holes and the slide frame is equipped with drop bars. After the aluminum foil bags are hot-sealed, they slide down the slope of the conveyor frame and are blocked by the drop bars. Then, the air blown out through the air blowing holes at the top and bottom flips and transports them to the conveyor belt. After being stacked and counted, they are transported to the next work station.

[0016] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the ultrasonic hot-pressing machine for bag openings of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the ultrasonic hot-pressing machine for bag openings of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the ultrasonic hot-pressing machine for bag openings of this utility model. Figure 3 ; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 yes Figure 3 Enlarged view of point B in the middle; Figure 6 This is the front view of the ultrasonic hot-sealing machine of this utility model; Figure 7 This is a side view of the ultrasonic hot-sealing machine of this utility model.

[0018] Figure label: 1. Hot-pressing rolling assembly; 11. Indentation roller; 12. Launching plate; 13. Control box; 2. Drive adjustment assembly; 21. Transmission head; 22. Driven sprocket; 23. Drive shaft; 24. Positioning adjustment nut; 25. Pneumatic lifting bracket; 26. Drive motor; 27. Drive sprocket; 3. Tilting conveyor assembly; 31. Conveyor frame; 32. Air blowing hole; 33. Drop frame; 34. Drop bar; 4. Stacking conveyor assembly; 41. Conveyor belt; 42. Tensioning roller; 43. Drive roller; 44. Conducting roller; 45. Conveyor motor; 5. Workbench; 6. Product bag; 7. Central control box. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] like Figures 1-7 As shown, in one embodiment, an ultrasonic hot-sealing machine for bag openings includes: a hot-sealing rolling assembly 1, a drive adjustment assembly 2, a flipping conveying assembly 3, and a stacking conveying assembly 4. The hot-sealing rolling assembly 1 is mounted on the workbench 5 and is used to hot-seale the bag opening of the product bag 6 to be processed. The drive adjustment assembly 2 is horizontally fixed to one side of the feeding end of the hot-sealing rolling assembly 1, which can provide stable rotation power for the hot-sealing rolling assembly 1 and can flexibly adjust the spacing of the assemblies according to the different single-sided thickness of the aluminum foil bag opening, thereby adapting to the processing requirements of products of different specifications. The flipping conveyor assembly 3 is mounted on one side of the discharge end of the workbench 5 and is tilted at a certain angle to the discharge port of the hot-sealing rolling assembly 1, which can quickly flip the aluminum foil bag after hot sealing and convey it to the next stage. The conveying table of the stacking conveyor assembly 4 is flush with the discharge end of the flipping conveyor assembly 3, which is used to accurately connect and receive the flipped aluminum foil bag, and at the same time realize orderly conveying and stacking pre-processing.

[0021] For example, the hot stamping rolling assembly 1 includes a vertically arranged indentation roller 11. The surface of the indentation roller 11 is formed with an arc-shaped pressing texture that is adapted to the opening of the aluminum foil bag, which can effectively enhance the material adhesion during hot stamping. Correspondingly, a transmitting plate 12 with a built-in ultrasonic transducer is provided directly below the indentation roller 11, which can stably convert electrical energy into high-frequency mechanical vibration and avoid sticking to the aluminum foil bag material, ensuring the stability of the hot stamping process. Specifically, the two ends of the embossing roller 11 are rotatably connected to the drive shaft 23 of the flipping conveyor assembly 3 through bearing assemblies, which can withstand the radial pressure when the embossing roller 11 rotates and is not easily deformed; while the launching plate 12 is fixedly embedded in the worktable 5 through a slot, its top surface is level with the worktable 5 surface, and the length of the launching plate 12 is the same as the length of the embossing roller 11, ensuring that the opening of the aluminum foil bag can fully cover the hot stamping area.

[0022] Please continue reading. Figures 1-7 In this embodiment, the drive adjustment component 2 includes a transmission head 21. Multiple driven sprockets 22 are arranged in parallel inside the transmission head 21. The driven sprockets 22 are rotatably connected to the transmission shaft 23. Adjacent driven sprockets 22 are connected by a transmission chain, so that the driven sprockets 22 can synchronously drive the indentation roller 11 to rotate at a uniform speed. Correspondingly, a positioning adjustment nut 24 is vertically inserted at the top of the transmission head 21. The bottom of the positioning adjustment nut 24 abuts against the bearing seat of the indentation roller 11. By rotating the nut clockwise or counterclockwise, the indentation roller 11 can be driven to rise and fall vertically, thereby precisely controlling the gap between the indentation roller 11 and the transmitting plate 12, adapting to the single-sided thickness of the bag opening of different specifications of aluminum film bags, and ensuring that the ultrasonic vibration energy can be effectively transmitted to the bag opening contact surface.

[0023] Specifically, a pneumatic lifting bracket 25 is installed at the bottom of one side of the transmission head 21. The pneumatic lifting bracket 25 has multiple sets of small cylinders built into it (as is existing technology, it is not included in the design). Figure 3 As indicated in the diagram, one end of the drive shaft 23 is rotatably connected to the output end of the pneumatic lifting bracket 25 via a coupling. When it is necessary to quickly adjust the initial height of the indentation roller 11, the adjustment can be achieved by cylinder drive, while ensuring the levelness after adjustment.

[0024] Furthermore, a drive motor 26 is provided at the bottom of the workbench 5. The output end of the drive motor 26 is connected to a drive sprocket 27 via a key. The drive sprocket 27 and the driven sprocket 22 are connected by a chain. The surface of the chain is coated with lubricating oil to reduce wear.

[0025] It should be noted that a control box 13 is provided on one side of the drive motor 26. The control box 13 integrates a PLC controller, an ultrasonic power regulator and a temperature sensor. The control box 13 is electrically connected to the transmitter board 12 through a shielded cable. It can monitor the ultrasonic output power and surface temperature of the transmitter board 12 in real time. When the parameters exceed the set threshold, an alarm is automatically triggered. Correspondingly, a larger central control unit 7 is located on the other side of the drive motor 26 near the edge of the workbench 5. The central control unit 7 integrates a power module, an air pressure regulating valve, and component linkage control circuits. The central control unit 7 is electrically connected to the control unit 13, an external air source, and an industrial power supply via multi-core cables, enabling centralized control of all components of the machine. The core improvement of this application does not involve innovation in the circuit control logic or the hardware itself. Functions such as basic signal acquisition and processing, start / stop and speed regulation of drive elements, and sequential action of actuators fall within the conventional design capabilities of those skilled in the art or the application scope of existing mature technologies. Therefore, those skilled in the art, based on the technical solution disclosed in this application and combined with their conventional circuit design knowledge, can implement the required control functions without creative effort.

[0026] Please continue reading. Figures 1-7 In this embodiment, the flipping conveyor assembly 3 includes a conveyor frame 31, which is inclined at a certain angle. Air holes 32 are evenly distributed on its inclined panel. A sliding frame 33 is correspondingly provided on the conveyor frame 31, and a drop bar 34 is inserted into the sliding frame 33. Specifically, air holes 32 are drilled at the top and bottom edges of the conveyor frame 31, and each air hole 32 is connected to an external air source through a pipeline. Correspondingly, a drop bar 34 is inserted at the bottom of the drop rack 33, and the axial direction of the drop bar 34 is perpendicular to the axial direction of the drop rack 33.

[0027] Understandably, after the aluminum foil bag is heat-sealed at the bag opening, it slides down naturally along the inclined panel of the conveyor frame 31 by gravity. When the bag slides to the drop bar 34, it is blocked and positioned. Then, compressed air is blown out through the air holes 32 symmetrically arranged at the top and bottom of the conveyor frame 31, which drives the aluminum foil bag to flip quickly to prevent the heat-sealed part of the bag opening from sticking to the conveyor surface. After flipping, the aluminum foil bag slides onto the conveyor belt 41 below. After counting the number, it is stacked according to the set number of stacks and then conveyed to the next station.

[0028] Please continue reading. Figures 1-7 In this embodiment, the stacking conveying assembly 4 includes a conveyor belt 41; specifically, an adjustable tension roller 42 is provided inside the end of the conveyor belt 41 near the discharge end of the conveyor frame 31, and the two ends of the tension roller 42 are connected to the bracket through sliding bearings; a drive roller 43 is provided inside the end of the conveyor belt 41 away from the conveyor frame 31, and the drive roller 43 has a larger transmission torque to ensure that the stacked aluminum film bags can be stably conveyed.

[0029] Correspondingly, multiple sets of guide rollers 44 are evenly arranged between the tension roller 42 and the drive roller 43. The guide rollers 44 are mounted on the bracket through fixed bearings, and their top surfaces are in close contact with the inner surface of the conveyor belt 41, which can support the middle of the conveyor belt 41 and prevent the conveyor belt 41 from sagging due to the weight of the bag. The side of the drive roller 43 away from the guide rollers 44 is rotatably connected to the output end of the conveyor motor 45 through a coupling. The conveyor motor 45 can adjust its speed according to the instructions of the main control box 7 to realize the uniform conveying or intermittent stopping of the conveyor belt 41, which is suitable for stacking and counting requirements.

[0030] Working principle: After powering on, the ultrasonic hot-pressing system and the flipping counting and stacking bag conveying system are started first. After the equipment completes self-check and there is no fault alarm, it enters the parameter setting stage. First, based on the characteristics of the three-layer composite material of the aluminum foil bag, set the ultrasonic power value (e.g., 200-300W; the power can be appropriately increased when the proportion of paper-plastic-aluminum film layers is high); then, by rotating the positioning adjustment nut 24 on the top of the transmission head 21, adjust the indentation roller 11 to a height suitable for the single-sided thickness of the bag opening (e.g., the single-sided thickness of the bag opening is 0.5mm). At the same time, the gap between the roller and the transmitting plate 12 is set to 0.6-0.7mm to ensure that the bag can pass through smoothly and that the ultrasonic vibration can be effectively transmitted. Then, the matching parameters of the conveying speed of the indentation roller 11 and the ultrasonic heat sealing firmness are set, and adjusted through trial heat sealing test (e.g., the tensile test shows that the peel strength at the bag opening adhesive is ≥5N) to ensure that the indentation heat sealing is firm without interlayer peeling, and that the bag is conveyed at a uniform speed with the roller without jamming or stretching deformation. Then, according to the design size of the aluminum foil bag, the position of the heat sealing at the bag opening edge is set to the reference distance (e.g., 5-8mm from the edge of the bag opening to avoid the heat sealing area from exceeding the bag body range) and the length to be heat sealed at the bag opening (e.g., 10-15mm to ensure sealing effect). Next, adjust the parameters of the flipping conveyor assembly 3, setting the blowing pressure of the top and bottom air inlets when the bag flips (e.g., 0.3-0.5MPa; too much pressure will blow the bag away, too little pressure will prevent it from flipping) and the instantaneous flipping reaction speed (e.g., 0.2-0.3s, matching the bag's sliding speed); finally, set the number of stacked bags to be counted (e.g., 10 bags / stack, which can be adjusted according to subsequent packing requirements) and the moving speed of the conveyor belt (e.g., 3-5m / min) and the interval pause time (e.g., 1-2s, during which counting and stacking are completed); after all the parameters for each step are set and saved, put the aluminum foil bags to be processed into the feeding end, and the equipment can enter the normal continuous operation state.

[0031] Through the above technical solution, this application adopts the ultrasonic hot-pressing process, which, compared with the traditional synthetic plastic agent spraying bonding process, not only fundamentally solves the defects such as glue leakage, uneven glue amount, glue point position deviation, weak glue point adhesion and glue point fall-off; it can also ensure product quality stability through glue-free hot-pressing, and completely eliminate the procurement, storage and environmental treatment costs of synthetic plastic agents, effectively improving the yield rate and reducing production costs.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bag mouth ultrasonic hemming machine, characterized by comprising: include: A hot-sealing rolling assembly (1) is set on a workbench (5) and is used to hot-seale the bag opening of the product bag (6) to be processed; The drive adjustment component (2) is located on one side of the hot plate component and is used to adjust and drive the hot plate rolling component (1) to roll. A flipping conveyor assembly (3) is set on one side of the workbench (5) for flipping and conveying the finished product bags (6); A stacking conveyor assembly (4) is located below the flipping assembly and is used to dock and convey the finished product bags (6). The hot-pressing rolling assembly (1) includes a vertically arranged indentation roller (11), and a launching plate (12) is provided below the indentation roller (11); The drive adjustment assembly (2) includes a transmission head (21), and multiple sets of driven sprockets (22) are arranged in parallel inside the transmission head (21). The driven sprockets (22) are rotatably connected to the transmission shaft (23), so that the driven sprockets (22) can drive the indentation roller (11) to rotate. A positioning adjustment nut (24) is inserted at the top of the transmission head (21), so that the positioning adjustment nut (24) can drive the indentation roller (11) to rise and fall. The flipping conveyor assembly (3) includes a conveyor frame (31), which is provided with an air blowing hole (32). A sliding frame (33) is provided on the conveyor frame (31), and a drop bar (34) is inserted into the sliding frame (33).

2. The bag-on-valve ultrasonic cupping machine of claim 1, wherein, The indentation roller (11) is rotatably connected to the drive shaft (23), and the launching plate (12) is disposed inside the worktable (5).

3. The bag-on-valve ultrasonic cupping machine of claim 1, wherein, A pneumatic lifting bracket (25) is provided at the bottom of one side of the transmission head (21), and the transmission shaft (23) is rotatably connected to the pneumatic lifting bracket (25).

4. The bag-on-valve ultrasonic cupping machine of claim 1, wherein, The bottom of the workbench (5) is provided with a drive motor (26), and the output end of the drive motor (26) is equipped with a drive sprocket (27), which is rotatably connected to the driven sprocket (22).

5. The bag-on-throat ultrasonic hot-cornier of claim 4, wherein, A control box (13) is provided on one side of the drive motor (26), and the control box (13) is electrically connected to the transmitter board (12).

6. The ultrasonic hot-pressing machine for bag openings according to claim 5, characterized in that, A main control box (7) is provided on the other side of the drive motor (26), and the main control box (7) is electrically connected to the control box (13), the air source and the power supply.

7. The ultrasonic hot-pressing machine for bag openings according to claim 1, characterized in that, The top and bottom edges of the conveyor frame (31) are provided with air blowing holes (32), and the conveyor frame (31) is connected to the air source through a pipeline.

8. The ultrasonic hot-pressing machine for bag openings according to claim 1, characterized in that, The bottom of the drop frame (33) is provided with a drop stop bar (34), and the drop stop bar (34) is axially perpendicular to the axis of the drop frame (33).

9. The ultrasonic hot-pressing machine for bag openings according to claim 1, characterized in that, The stacking conveyor assembly (4) includes a conveyor belt (41), with a tension roller (42) inside the end of the conveyor belt (41) near the conveyor frame (31) and a drive roller (43) inside the end of the conveyor belt (41) away from the conveyor frame (31).

10. The ultrasonic hot-pressing machine for bag openings according to claim 9, characterized in that, A transmission roller (44) is provided between the tension roller (42) and the drive roller (43). A conveyor motor (45) is provided on one side of the drive roller (43), and the output end of the conveyor motor (45) is rotatably connected to the drive roller (43).

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