A three-dimensional packaging machine with adjustable position of tear line adhesive

Abstract

The utility model relates to packaging machinery technical field discloses a kind of three-dimensional packaging machines with adjustable tear line sticking position, including desktop, bottom conveying mechanism and top film laminating and sealing assembly, and the feeding is realized by wheel-driven belt and conveying block in desktop bottom, and the top is equipped with packaging bag cylinder rod and clamping rod, second fixed block side surface is connected with adjusting support, inside rotary connection adjusting screw rod, adjusting screw rod drives mobile slider and press-fit guide pulley to move along transverse reciprocating, to change the compound position of tear line on packaging film;Device is also provided with the positioning ring with containing cavity and push-out cylinder, and the conveying shaft with spiral conveying blade on surface is also provided with.The utility model solves the problem that tear line position cannot be flexibly adjusted by adjusting assembly, realizes the adaptation to different specifications packaging box, and cooperates with positioning ring and spiral conveying shaft, ensures the process connection of film laminating, sealing to edge, significantly improves packaging efficiency and finished product aesthetic degree.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a three-dimensional packaging machine with adjustable easy-tear line adhesive position. Background Technology

[0002] Three-dimensional transparent film packaging machines are widely used in the outer packaging of square box products in industries such as pharmaceuticals, health products, cosmetics, tea, and food. The working principle is to wrap the outer surface of the cardboard box with BOPP or PVC film cut to a fixed length. Through folding and heat sealing, the packaged product has moisture-proof, dust-proof, and anti-counterfeiting functions, while improving the appearance of the product. In order to facilitate consumers to quickly remove the outer film without the aid of tools, an easy-tear line (commonly known as a gold tear line) is usually pasted on the inner side of the packaging film, and a slit is pre-made on the packaging film. Users only need to pull the easy-tear line to cut the film smoothly.

[0003] However, in the existing structural design of 3D packaging machines, the mechanism responsible for supplying and pressing the easy-tear line is usually fixedly installed at a specific position next to the frame or film supply roller. Its lateral position relative to the direction of packaging film travel is fixed and cannot be changed. This means that the adhesion height of the easy-tear line on the unfolded surface of the packaging film is always maintained in a straight line. Although this design is simple in structure, it shows obvious limitations when facing the flexible production needs of multiple varieties and small batches. When manufacturers need to change packaging boxes of different heights or sizes, or need to change the opening height of the easy-tear line to match the pattern design on the packaging box, the existing fixed mechanism cannot be flexibly adjusted, causing the position of the easy-tear line to deviate from the preset opening. This not only affects the coordination of the product appearance, but may also cause difficulties in opening. If a forced adjustment is required, it often requires disassembly and modification of the main structure of the equipment. The debugging cycle is long and the accuracy is difficult to control, which seriously restricts the production efficiency and the applicability of the equipment.

[0004] Therefore, this utility model proposes a three-dimensional packaging machine with adjustable easy-tear line pasting position to overcome the shortcomings of the prior art. Utility Model Content

[0005] In existing technologies, conventional 3D packaging machines typically use a fixed installation method for the easy-tear line supply and pasting mechanism during film packaging operations. This results in the easy-tear line not being able to be pasted in a fixed position on the packaging film, making it difficult for the equipment to adapt to packaging boxes of different heights and specifications. Changing the position of the tear line requires disassembling and modifying the equipment, leading to cumbersome adjustments and poor versatility. The present invention aims to provide a 3D packaging machine with an improved structure that can effectively solve the above problems by allowing the easy-tear line pasting position to be adjustable.

[0006] This utility model provides a three-dimensional packaging machine with adjustable easy-tear line adhesive position, including: a desktop and a support column fixedly connected to the bottom of the desktop; a first fixing block is fixedly connected to the bottom of the desktop, a movable rod is fixedly connected to the front side of the first fixing block, a pulley is rotatably connected to the outer periphery of the movable rod through a bearing, a belt is meshed with the outer periphery of the pulley, and multiple sets of conveyor blocks are fixedly connected to the outer side of the belt; a second fixing block is fixedly connected to the rear end of the top of the desktop, a packaging bag tube rod is fixedly connected to the rear of the second fixing block, a packaging bag clamping rod is fixedly connected to the top of the desktop and to the front of the packaging bag tube rod, and a stacking groove is fixedly connected to the top of the desktop and to the front of the packaging bag clamping rod; a rotating shaft is fixedly connected to the inner side of the desktop, a positioning ring is rotatably connected to the outer periphery of the rotating shaft, and a sealing module is fixedly connected to the rear of the second fixing block and above the rotation path of the positioning ring; a conveyor shaft is rotatably connected to the inner side of the desktop and to one side of the positioning ring, and two sealing devices are symmetrically fixedly connected to the top of the desktop and to both sides of the conveyor shaft in the conveying direction.

[0007] Among them, the core innovative component, the easy-tear line adjustment assembly, has an adjustment structure that can convert rotational motion into lateral linear displacement through mechanical transmission.

[0008] Furthermore, the second fixing block and the easy-tear line adjustment assembly are combined by a fixed connection. Specifically, an adjustment bracket is fixedly connected to the side of the second fixing block, an adjustment screw is rotatably connected inside the adjustment bracket, a movable slider is threaded to the outer circumference of the adjustment screw, and a feeding shaft for installing the easy-tear line and a pressing guide wheel for pressing the easy-tear line are rotatably connected to the movable slider. The position of the pressing guide wheel corresponds to the discharge path of the packaging bag tube rod. By moving the movable slider, the position of the pressing guide wheel is changed, thereby realizing the adjustable position of the easy-tear line.

[0009] Preferably, the top structure of the conveying block is designed as a push block structure that matches the shape of the bottom opening of the stacking groove. The desktop surface is provided with a guide groove for the conveying block to move. The upper end of the conveying block passes through the guide groove and extends into the stacking groove, thereby realizing the precise gripping and pushing of the bottom material in the stacking groove.

[0010] Preferably, the positioning ring is designed as a circular ring structure, and the inner wall of the positioning ring has a receiving cavity that matches the outer dimensions of the box to be packaged. An ejection cylinder is installed inside the positioning ring, and the output end of the ejection cylinder is set towards the conveyor shaft to automatically eject the sealed material to the next process.

[0011] Preferably, an auxiliary support block is also fixedly connected to the bottom of the first fixed block. The two ends of the auxiliary support block are respectively fixedly connected to the ends of the two movable rods. The number of pulleys is configured to be two and located on both sides of the first fixed block. By forming a closed frame structure, the overall rigidity and stability of the bottom transmission mechanism are improved.

[0012] Preferably, a packaging film roll is fitted around the outer periphery of the packaging bag rod, and the outer surface of the packaging bag clamping rod is machined with a smooth guide arc surface. The outer circumferential surface of the pressing guide wheel keeps rolling contact with the surface of the film leading out from the packaging film roll to ensure that the tear line can be flat and continuously adhered to the inner side of the film.

[0013] Preferably, the sealing module specifically includes a lifting cylinder and a heat sealing head connected to the bottom of the lifting cylinder. The heat sealing head is located directly above the positioning ring and is used to achieve vertical heat sealing of the top surface of the package.

[0014] Preferably, the outer surface of the conveyor shaft is integrally formed with spiral conveying blades, the bottom of the table is provided with a conveying motor to drive the conveyor shaft to rotate, and a transition guide plate is also provided between the conveyor shaft and the sealing device, so as to ensure that the material smoothly transitions from the sealing station to the sealing station by using the spiral propulsion principle.

[0015] Preferably, the sealing device includes a fixed base and a heating and shaping plate disposed inside the fixed base. The distance between the two sealing devices is adapted to the width of the packaging box. The inlet end of the sealing device is designed in the shape of a trumpet to facilitate the smooth introduction of the packaging box and the folding and shaping of the side film.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problem in the prior art that the easy-tear line pasting position of the three-dimensional packaging machine is fixed and cannot be flexibly adjusted, making it difficult to adapt to different specifications of packaging boxes or different opening position requirements. It achieves the technical effect of being able to accurately and conveniently adjust the pasting trajectory of the easy-tear line on the packaging film according to the actual packaging process requirements, and significantly improving the versatility of the equipment and the aesthetics of the packaged product.

[0017] 2. This utility model, through the combination of a positioning ring, an internal ejection cylinder, and a spiral conveying blade design on the surface of the conveying shaft, solves the problems of poor handover, easy jamming, and unstable linear conveying of box-shaped materials during the transfer from the sealing station to the edge sealing station. It achieves the technical effect of realizing the seamless connection of automated processes from positioning and film covering, rotary sealing to ejection and edge sealing, effectively improving production efficiency and overall machine operation stability.

[0018] 3. This utility model solves the problem of mechanical vibration and material feeding accuracy of the conveyor block during long-term high-speed operation of the bottom belt drive mechanism by adding an auxiliary support block at the bottom of the first fixed block and connecting it with two movable rods to form a stable frame support structure. This achieves the technical effect of enhancing the overall rigidity of the transmission mechanism, ensuring stable and accurate material conveying, and extending the service life of the equipment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a three-dimensional packaging machine with adjustable easy-tear line adhesive position proposed in this utility model; Figure 2 This is a schematic diagram of the conveyor block of a three-dimensional packaging machine with adjustable easy-tear line adhesive position proposed in this utility model; Figure 3 This is a schematic diagram of the desktop of a three-dimensional packaging machine with adjustable easy-tear line adhesive position proposed in this utility model; Figure 4 This is a schematic diagram of the sealing device of a three-dimensional packaging machine with adjustable easy-tear line adhesive position proposed in this utility model.

[0020] Legend: 1. Desktop; 2. Support column; 3. First fixing block; 4. Movable rod; 5. Pulley; 6. Belt; 7. Conveyor block; 8. Stacking groove; 9. Packaging bag clamping rod; 10. Packaging bag tube rod; 11. Second fixing block; 12. Sealing module; 13. Positioning ring; 14. Rotating shaft; 15. Conveyor shaft; 16. Sealing device. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Example: Please refer to Figures 1 to 4 This utility model provides a three-dimensional packaging machine with an adjustable easy-tear line adhesive position. It aims to solve the structural defect in existing three-dimensional packaging machines where the easy-tear line adhesive position is fixed and cannot be adjusted, making it difficult to adapt to the needs of packaging boxes of different sizes. Figure 1 and Figure 3As shown, the three-dimensional packaging machine with adjustable easy-tear line adhesive position includes a desktop 1 and a support column 2 fixedly connected to the bottom of the desktop 1. The desktop 1 serves as the mounting base for the entire equipment, and the support column 2 at the bottom provides stable support and fixation to the ground. A first fixing block 3 is also fixedly connected to the bottom of the desktop 1. A movable rod 4 is fixedly connected to the front side of the first fixing block 3. A pulley 5 is rotatably connected to the outer periphery of the movable rod 4 via a bearing. A belt 6 is meshed with the outer periphery of the pulley 5. Multiple sets of conveying blocks 7 are fixedly connected to the outer side of the belt 6. The pulley 5 drives the belt 6 to rotate, thereby driving the conveying blocks 7 to move and achieve continuous material conveying. A second fixing block 11 is fixedly connected to the top rear end of the desktop 1. A packaging bag cylinder rod 10 is fixedly connected to the rear of the second fixing block 11. The top of the desktop 1, located in front of the packaging bag cylinder rod 10, is fixedly connected to... A stacking groove 8 is fixedly connected to the top of the tabletop 1 and in front of the packaging bag clamping rod 9. The box to be packaged is placed in the stacking groove 8 and waits for the conveyor block 7 to push it. The packaging film roll is sleeved on the packaging bag tube rod 10 and guided by the packaging bag clamping rod 9. To solve the technical problem of adjusting the position of the easy-tear line, an adjustment bracket is fixedly connected to the side of the second fixing block 11. An adjustment screw is rotatably connected inside the adjustment bracket. A movable slider is threadedly connected to the outer circumference of the adjustment screw. A feeding shaft for installing the easy-tear line and a pressing guide wheel for pressing the easy-tear line are rotatably connected on the movable slider. The position of the pressing guide wheel corresponds to the discharge path of the packaging bag tube rod 10. By rotating the adjustment screw, the movable slider is driven to move, thereby changing the position of the pressing guide wheel in the lateral direction, so as to achieve precise adjustment of the position of the easy-tear line and the packaging film.

[0023] To address the technical problem of poor packaging adaptability caused by the non-adjustable position of the tear line, this three-dimensional packaging machine with an adjustable tear line attachment position also includes a tear line adjustment component. Furthermore, the tear line adjustment component forms a specific structural fit and connection with the aforementioned second fixing block 11 and packaging bag tube rod 10. Please refer to [the relevant documentation / reference]. Figure 1 and Figure 3The core structure is described in detail below: The easy-tear line adjustment assembly mainly consists of an adjustment bracket fixedly connected to the side of the second fixed block 11. The adjustment bracket has a guide groove extending horizontally inside. An adjustment screw is rotatably connected within the guide groove, and its axis is perpendicular to the conveying direction of the packaging film. A movable slider is threaded onto the outer circumference of the adjustment screw. The bottom shape of the movable slider is adapted to the guide groove to restrict its rotational freedom. A feeding shaft is rotatably connected to the upper part of the movable slider for installing the easy-tear line roll. A pressing guide wheel extends from the bottom of the movable slider. The outer circumference of the pressing guide wheel maintains rolling contact with the packaging film conveyed on the surface of the packaging bag cylinder 10. By rotating the adjustment screw, the movable slider is driven to move laterally back and forth along the guide groove, thereby driving the feeding shaft and the pressing guide wheel to move synchronously, thus changing the easy-tear line width of the packaging film. The adhesive position in the degree direction allows for adaptation to packaging boxes of different sizes. At the same time, a rotating shaft 14 is fixedly connected to the inner side of the desktop 1, and a positioning ring 13 is rotatably connected to the outer circumference of the rotating shaft 14. The positioning ring 13 has a circular structure and its inner wall has a receiving cavity that matches the outer size of the box to be packaged. The positioning ring 13 has a receiving station and a sealing station under the drive of the rotating shaft 14. When it is in the receiving station, the inlet of the receiving cavity is aligned with the outlet of the stacking groove 8 to receive the box wrapped with packaging film and easy-tear line pushed by the conveyor block 7. When it is rotated to the sealing station, the receiving cavity is located directly below the sealing module 12 fixedly connected to the rear of the second fixed block 11. The sealing module 12 includes a lifting cylinder and a heat sealing head connected to the bottom. The heat sealing head can descend vertically to heat-seal the packaging film inside the positioning ring 13.

[0024] Based on the above embodiments, to further optimize the material conveying stability and structural rigidity, the top shape of the conveyor block 7 is designed to match the bottom opening shape of the stacking groove 8. A guide groove for the conveyor block 7 to move is opened on the surface of the tabletop 1. The upper end of the conveyor block 7 passes through the guide groove and extends into the stacking groove 8. An auxiliary support block is fixedly connected to the bottom of the first fixed block 3. The two ends of the auxiliary support block are fixedly connected to the ends of two movable rods 4 respectively. Two pulleys 5 are set and are located on both sides of the first fixed block 3 respectively. The frame structure formed by the auxiliary support block and the movable rods 4 can effectively offset the vibration generated during the transmission of the belt 6. To ensure smooth conveying of the packaging film and tight pressing of the easy-tear line, a packaging film roll is sleeved on the outer periphery of the packaging bag tube rod 10. The outer surface of the packaging bag clamping rod 9 is processed with a smooth guide arc surface to reduce film scratches. The outer circumferential surface of the pressing guide wheel keeps rolling contact with the film surface led out from the packaging film roll to achieve positioning. The automatic unloading and subsequent conveying of the inner packaging box of the ring 13 is achieved by positioning ring 13, which is designed as a circular structure. The inner wall of positioning ring 13 has a cavity that matches the outer dimensions of the box to be packaged. An ejection cylinder is installed inside positioning ring 13, and the output end of the ejection cylinder is set towards the conveyor shaft 15. The sealing module 12 specifically includes a lifting cylinder and a heat sealing head connected to the bottom of the lifting cylinder. The heat sealing head is located directly above positioning ring 13. In order to smoothly convey the sealed packaging box to the sealing station, the outer surface of the conveyor shaft 15 is provided with spiral conveying blades. A conveyor motor that drives the rotation of the conveyor shaft 15 is provided at the bottom of the table 1. A transition guide plate is provided between the conveyor shaft 15 and the sealing device 16. The sealing device 16 includes a fixed seat and a heating and shaping plate set inside the fixed seat. The distance between the two sealing devices 16 is adapted to the width of the packaging box. The entrance end of the sealing device 16 is designed in the shape of a flared mouth to guide the packaging box smoothly into the shaping area.

[0025] The working principle of this three-dimensional packaging machine with adjustable easy-tear line adhesive position is as follows: Before starting the operation, according to the current batch of packaging box specifications and the preset height requirements of the easy-tear line, rotate the adjusting screw. Since the moving slider cannot rotate due to the restriction of the guide groove, the rotational motion of the adjusting screw is converted into the lateral linear displacement of the moving slider along the adjusting bracket. The moving slider drives the feeding shaft and pressing guide wheel installed on it to move synchronously, thereby changing the contact position of the pressing guide wheel relative to the width of the packaging film, ensuring that the easy-tear line can be accurately pressed on the designated track of the packaging film, and the debugging is completed.

[0026] Entering the formal packaging process, pulley 5 drives belt 6 to rotate in a cycle, driving conveyor block 7 to move synchronously. Conveyor block 7 passes through guide groove and extends into the bottom of stacking groove 8, pushing the bottommost box to be packaged forward smoothly. During the movement of the box, it hits and drives the packaging film led out from packaging bag cylinder rod 10. At the moment the packaging film is pulled out, the pressing guide wheel rolls and sticks the easy-tear line released by the feeding shaft to the inner surface of the packaging film in real time. The box continues to move forward and passes through packaging bag clamp rod 9. Under the guidance of the guide arc surface, the packaging film opens and completes the initial circumferential wrapping of the box.

[0027] Conveyor block 7 continues to push the film-wrapped box into the internal cavity of positioning ring 13. Then, rotating shaft 14 drives positioning ring 13 to rotate to the sealing station, so that the box is facing sealing module 12. Lifting cylinder drives heat sealing head to press down, heat-melt seal the overlapping film on the box surface, and complete the main sealing operation. After sealing, the internal ejection cylinder of positioning ring 13 actuates, pushes the box out and slides it into the area of ​​conveyor shaft 15 via transition guide plate. Conveyor motor drives conveyor shaft 15 to rotate, and uses surface spiral conveyor blades to generate axial thrust to send the box between two sealing devices 16. After being guided by the flared inlet, the heating and shaping plates on both sides fold and iron the two ends of the packaging bag and seal it, and finally output the finished product. Through the coordinated action of the above mechanisms, the equipment can achieve efficient three-dimensional packaging and completely solve the technical problem of the inflexible adjustment of the position of the tear line.

[0028] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A three-dimensional packaging machine with adjustable easy-tear line adhesive position, comprising: A desktop (1) is fixedly connected to a support column (2) at the bottom of the desktop (1). A first fixed block (3) is also fixedly connected to the bottom of the desktop (1). A movable rod (4) is fixedly connected to the front side of the first fixed block (3). A pulley (5) is rotatably connected to the outer periphery of the movable rod (4) through a bearing. A belt (6) is meshed with the outer periphery of the pulley (5). Multiple sets of transmission blocks (7) are fixedly connected to the outer side of the belt (6). The tabletop (1) is characterized in that a second fixing block (11) is fixedly connected to the top rear end of the tabletop (1), a packaging bag tube rod (10) is fixedly connected to the rear part of the second fixing block (11), a packaging bag clamp rod (9) is fixedly connected to the top of the tabletop (1) and in front of the packaging bag tube rod (10), and a stacking groove (8) is fixedly connected to the top of the tabletop (1) and in front of the packaging bag clamp rod (9). An adjustment bracket is fixedly connected to the side of the second fixing block (11). An adjustment screw is rotatably connected inside the adjustment bracket. A movable slider is threadedly connected to the outer circumference of the adjustment screw. A feeding shaft for installing the easy-tear line and a pressing guide wheel for pressing the easy-tear line are rotatably connected on the movable slider. The position of the pressing guide wheel corresponds to the discharge path of the packaging bag tube rod (10). A rotating shaft (14) is fixedly connected to the inner side of the desktop (1), and a positioning ring (13) is rotatably connected to the outer periphery of the rotating shaft (14). A sealing module (12) is fixedly connected to the rear of the second fixing block (11) and above the rotation path of the positioning ring (13). A conveyor shaft (15) is rotatably connected to the inner side of the desktop (1) and to one side of the positioning ring (13). Two edge sealing devices (16) are symmetrically fixedly connected to the top of the desktop (1) and to both sides of the end of the conveyor shaft (15) in the conveying direction.

2. The three-dimensional packaging machine with adjustable easy-tear line adhesive position according to claim 1, characterized in that, The top shape of the conveying block (7) is adapted to the bottom opening shape of the stacking groove (8). A guide groove is provided on the tabletop (1) for the conveying block (7) to move. The upper end of the conveying block (7) passes through the guide groove and extends into the stacking groove (8).

3. The three-dimensional packaging machine with adjustable easy-tear line adhesive position according to claim 1, characterized in that, The positioning ring (13) has a circular ring structure. The inner wall of the positioning ring (13) has a receiving cavity that matches the outer size of the box to be packaged. The positioning ring (13) has an ejection cylinder inside, and the output end of the ejection cylinder is set towards the transmission shaft (15).

4. A three-dimensional packaging machine with adjustable easy-tear line adhesive position according to claim 1, characterized in that, An auxiliary support block is fixedly connected to the bottom of the first fixed block (3). The two ends of the auxiliary support block are fixedly connected to the ends of the two movable rods (4). There are two pulleys (5) and they are located on both sides of the first fixed block (3).

5. A three-dimensional packaging machine with adjustable easy-tear line adhesive position according to claim 1, characterized in that, The outer circumference of the packaging bag tube rod (10) is fitted with a packaging film roll, the outer surface of the packaging bag clamp rod (9) is provided with a smooth guide arc surface, and the outer circumferential surface of the pressing guide wheel rolls into rolling contact with the film surface led out by the packaging film roll.

6. A three-dimensional packaging machine with adjustable easy-tear line adhesive position according to claim 1, characterized in that, The sealing module (12) includes a lifting cylinder and a heat sealing head connected to the bottom of the lifting cylinder, the heat sealing head being located directly above the positioning ring (13).

7. A three-dimensional packaging machine with adjustable easy-tear line adhesive position according to claim 1, characterized in that, The outer surface of the conveying shaft (15) is provided with spiral conveying blades, the bottom of the tabletop (1) is provided with a conveying motor that drives the conveying shaft (15) to rotate, and a transition guide plate is provided between the conveying shaft (15) and the sealing device (16).

8. A three-dimensional packaging machine with adjustable easy-tear line adhesive position according to claim 1, characterized in that, The sealing device (16) includes a fixed base and a heating and shaping plate disposed inside the fixed base. The distance between the two sealing devices (16) is adapted to the width of the packaging box. The entrance end of the sealing device (16) is flared.

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