Packaging bag winding device for plastic packaging bag printing

Abstract

The utility model discloses a packaging bag winding device for plastic packaging bag printing, and belongs to the technical field of packaging bag winding, the packaging bag winding device for plastic packaging bag printing comprises a working frame, the top end of one side of the working frame is fixedly connected with a conveying frame, the two sides of the middle of the working frame are fixedly connected with fixing frames respectively, and the conveying frame is fixedly connected with the fixing frames. A roll core is clamped between the two fixing frames, a discharging hopper is arranged on one side of the bottom of the roll core, a feeding hopper is arranged on the side, away from the discharging hopper, of the bottom of the roll core, the two sides of the discharging hopper and the two sides of the feeding hopper are fixedly connected with the working frame, and a feeding mechanism is installed at the bottom between the discharging hopper and the feeding hopper. By means of the design of the feeding mechanism, it is guaranteed that films are fed evenly, the problem that roll cores are placed unevenly due to improper manual operation is solved, the adjustable fixing frame is matched, the device adapts to the roll cores of different sizes, the universality and flexibility of the device are improved, and the winding quality of packaging bag films is improved.

Description

Technical Field

[0001] This utility model belongs to the field of packaging bag winding technology, specifically relating to a packaging bag winding device for printing plastic packaging bags. Background Technology

[0002] Packaging bags are containers widely used in daily life and industrial production, primarily for holding and protecting various items. They are typically made of plastic, paper, composite materials, etc., and are lightweight, durable, and easy to carry. Plastic packaging bags, especially those made of polyethylene film, are often used for food packaging due to their non-toxic, waterproof, and transparent properties. They effectively prevent food from getting damp and contaminated, extending its shelf life. Besides food packaging, packaging bags are also widely used in many other fields such as electronic products, clothing, and daily necessities. They can be designed in different sizes, shapes, and colors to meet different packaging needs. For example, tote bags are commonly used for shopping, while courier bags are used for mailing items. Packaging bags play an important role in modern life, not only facilitating people's daily lives but also providing strong support for product transportation and sales.

[0003] A packaging film winding device is a piece of equipment used to wind the produced packaging film into rolls. This device is crucial in the packaging bag production process because it neatly winds the film, facilitating subsequent transportation, storage, and use. Existing winding devices often require manual core placement, which not only increases the labor intensity of operators but also easily leads to uneven core placement, thus affecting the quality and efficiency of packaging film winding. Furthermore, manual operation can also cause safety accidents, threatening the stable operation of the production line. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a packaging bag winding device for printing plastic packaging bags.

[0005] The technical solution adopted to solve the above technical problems is: a packaging bag winding device for printing plastic packaging bags, including a working frame, a conveyor frame fixedly connected to the top of one side of the working frame, a fixing frame fixedly connected to both sides of the middle of the working frame, a core being held between the two fixing frames, a discharge hopper provided on one side of the bottom of the core, a feed hopper provided on the side of the bottom of the core away from the discharge hopper, the discharge hopper and the feed hopper being fixedly connected to the working frame on both sides, and a feeding mechanism installed at the bottom between the discharge hopper and the feed hopper.

[0006] The above technical solutions enable automated core placement and film winding processes, significantly reducing the labor intensity of operators, improving production efficiency, reducing human intervention, lowering the probability of safety accidents, and ensuring the stable operation of the production line.

[0007] Furthermore, the feeding mechanism includes a mounting frame, which is fixedly connected to the work frame. Turntables are rotatably connected to the inner sides of both ends of the mounting frame, and motors are mounted on the outer sides of both ends of the mounting frame. The power output end of the motor is fixedly connected to the turntable.

[0008] The above technical solution enables the turntable to rotate via a motor, achieving continuous cyclic operation of the feeding mechanism, reducing energy loss and improving energy utilization efficiency. The overall structure is compact, facilitating maintenance and upkeep, further extending the equipment's lifespan and production efficiency.

[0009] Furthermore, a long rod is rotatably connected to the outer ring area of ​​the turntable surface, a short rod is rotatably connected to the middle of the long rod, the end of the short rod away from the long rod is rotatably connected to the mounting bracket, and a triangular plate is rotatably connected to the end of the long rod away from the turntable.

[0010] Furthermore, the middle part of the triangular plate is rotatably connected to the end of the long rod away from the turntable, one end of the triangular plate is rotatably connected to a central rod, the end of the central rod away from the triangular plate is rotatably connected to the mounting bracket, and the end of the triangular plate away from the central rod is fixedly connected to a semi-circular support ring.

[0011] Through the above technical solution, the various positions and states of the semicircular support ring at one end of the triangular plate can be switched by the cooperation of the long rod, middle rod and short rod, thereby realizing the material picking and feeding operation of the semicircular support ring.

[0012] Furthermore, guide rods are fixedly connected to both sides of the two fixed frames, and hydraulic push rods are fixedly connected to the top of the two fixed frames. A motor housing is fixedly connected to the telescopic end of the hydraulic push rod. Limiters are fixedly connected to both sides of the motor housing. The limiters are slidably connected to the guide rods. A chuck is fixedly connected to the power output end of the motor housing. The chucks rotate and fit against the core. A guide boss is provided in the middle of the surface of the chuck. The guide boss is slidably connected to the inner side of the core.

[0013] Through the above technical solutions, the guide boss ensures the stability of the core during rotation, avoiding printing quality problems caused by misalignment. Simultaneously, the limiter effectively restricts the movement range of the motor housing, ensuring precise operation within the predetermined trajectory. The introduction of the hydraulic push rod makes the lifting and lowering operation of the motor housing smoother, further improving the overall operating efficiency of the device. Furthermore, the through-sliding connection design between the guide rod and the limiter ensures both flexible movement of the motor housing and enhanced structural stability of the device, thereby ensuring high precision and high stability in the printing process of plastic packaging bags.

[0014] Furthermore, a support column is fixedly connected to the top surface of the work frame, a transmission rod is rotatably connected to the top of the support column, a pressure rod is fixedly connected to the middle of the transmission rod, a pressing roller is rotatably connected to the end of the pressure rod away from the transmission rod, the pressing roller is rotatably in contact with the surface of the core, a lever plate is fixedly connected to both ends of the transmission rod, a hydraulic telescopic rod is rotatably connected to the end of the lever plate away from the transmission rod, the telescopic end of the hydraulic telescopic rod is fixedly connected to the lever plate, and the bottom end of the hydraulic telescopic rod is rotatably connected to the fixed frame.

[0015] Through the above technical solution, the pressing roller can adaptively adjust according to the rotation state of the core, ensuring uniform force on the core surface, thereby effectively preventing wrinkles or deformation of plastic packaging bags during the winding process. At the same time, the linkage design of the transmission rod and the dial plate allows the hydraulic telescopic rod to respond quickly when needed, adjusting the position of the dial plate to further optimize the winding effect of the core. When dealing with plastic packaging bags of different thicknesses, the device can flexibly adjust the pressing pressure, ensuring a dual improvement in printing quality and winding effect.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention ensures uniform film feeding through the design of the feeding mechanism, avoiding uneven core placement caused by improper manual operation. Combined with an adjustable fixing frame, it can adapt to cores of different sizes, improving the versatility and flexibility of the device and enhancing the quality of packaging bag film winding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the core fixing structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the core feeding mechanism of this utility model.

[0021] Reference numerals: 1. Working frame; 2. Conveyor frame; 3. Fixed frame; 4. Hydraulic push rod; 5. Motor box; 6. Chuck; 7. Discharge hopper; 8. Core coil; 9. Feed hopper; 10. Support column; 11. Pressing roller; 12. Transmission rod; 13. Pressure rod; 14. Paddle plate; 15. Hydraulic telescopic rod; 16. Guide rod; 17. Limiter; 18. Guide boss; 19. Mounting frame; 20. Turntable; 21. Long rod; 22. Motor; 23. Short rod; 24. Middle rod; 25. Triangular plate; 26. Semicircular support ring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] like Figures 1 to 3 As shown, a packaging bag winding device for printing plastic packaging bags in this embodiment includes a work frame 1. A conveyor frame 2 is fixedly connected to the top of one side of the work frame 1. Fixed frames 3 are fixedly connected to both sides of the middle of the work frame 1. A core 8 is held between the two fixed frames 3. A discharge hopper 7 is provided on one side of the bottom of the core 8. A feed hopper 9 is provided on the side of the bottom of the core 8 away from the discharge hopper 7. The discharge hopper 7 and the feed hopper 9 are fixedly connected to the work frame 1 on both sides. A feeding mechanism is installed at the bottom between the discharge hopper 7 and the feed hopper 9, realizing the automated placement of the core 8 and the film winding process, significantly reducing the labor intensity of operators and improving production efficiency.

[0024] The feeding mechanism includes a mounting frame 19, which is fixedly connected to the work frame 1. Turntables 20 are rotatably connected to the inner sides of both ends of the mounting frame 19. Motors 22 are mounted on the outer sides of both ends of the mounting frame 19. The power output end of the motors 22 is fixedly connected to the turntables 20. A long rod 21 is rotatably connected to the outer ring area of ​​the turntable 20. A short rod 23 is rotatably connected to the middle of the long rod 21. The end of the short rod 23 furthest from the long rod 21 is rotatably connected to the mounting frame 19. A triangular plate 25 is rotatably connected to the end of the long rod 21 furthest from the turntable 20. The middle part of the triangular plate 25 is rotatably connected to the end of the long rod 21 away from the turntable 20. The middle rod 24 is rotatably connected to one end of the triangular plate 25. The end of the middle rod 24 away from the triangular plate 25 is rotatably connected to the mounting bracket 19. The semi-circular support ring 26 is fixedly connected to the end of the triangular plate 25 away from the middle rod 24. Through the cooperation of the various long rods 21, middle rods 24 and short rods 23, the various positions and states of the semi-circular support ring 26 at one end of the triangular plate 25 can be switched, thereby realizing the material picking and feeding operation of the semi-circular support ring 26.

[0025] Guide rods 16 are fixedly connected to both sides of the two fixed frames 3. Hydraulic push rods 4 are fixedly connected to the top of the two fixed frames 3. Motor housing 5 is fixedly connected to the telescopic end of hydraulic push rod 4. Limiters 17 are fixedly connected to both sides of motor housing 5. Limiters 17 are slidably connected to guide rods 16. Chuck 6 is fixedly connected to the power output end of motor housing 5. Chuck 6 rotates and fits against core 8. Guide boss 18 is provided in the middle of the surface of chuck 6. Guide boss 18 is slidably connected to the inner side of core 8. Guide boss 18 can ensure that core 8 remains stable during rotation and avoid printing quality problems caused by deviation.

[0026] A support column 10 is fixedly connected to the top surface of the work frame 1. A transmission rod 12 is rotatably connected to the top of the support column 10. A pressure rod 13 is fixedly connected to the middle of the transmission rod 12. A pressing roller 11 is rotatably connected to the end of the pressure rod 13 away from the transmission rod 12. The pressing roller 11 rotates and fits against the surface of the core 8. A lever plate 14 is fixedly connected to both ends of the transmission rod 12. A hydraulic telescopic rod 15 is rotatably connected to the end of the lever plate 14 away from the transmission rod 12. The telescopic end of the hydraulic telescopic rod 15 is fixedly connected to the lever plate 14. The bottom end of the hydraulic telescopic rod 15 is rotatably connected to the fixed frame 3. The pressing roller 11 can adaptively adjust according to the rotation state of the core 8 to ensure that the force on the surface of the core 8 is uniform, thereby effectively preventing wrinkles or deformation of the plastic packaging bag during the winding process.

[0027] The working principle of this embodiment is as follows:

[0028] First, multiple cores 8 are placed into the feed hopper 9. At this time, the motor 22 is started, and the motor 22 drives the turntable 20 to rotate. The long rod 21 on the surface of the turntable 20 moves as a result. With the cooperation of the short rod 23 and the middle rod 24, when the connection position of the long rod 21 rotates to the upper right corner of the turntable 20, the semi-circular support ring 26 at the front end of the triangular plate 25 is in a retracted state. At this time, the semi-circular support ring 26 is located at the bottom of the device. When the turntable 20 rotates counterclockwise, the semi-circular support ring 26 moves to the upper left corner, lifting the core 8 located at the bottom of the feed hopper 9. Finally, the core 8 is lifted and moved between the chucks 6.

[0029] Subsequently, the hydraulic push rod 4 is activated, causing its telescopic end to move the motor housing 5 up and down along the guide rod 16 until the chuck 6 and the core 8 are tightly fitted together. At this point, the power output end of the motor housing 5 drives the chuck 6 to rotate, thereby driving the core 8 to rotate, realizing the winding process of the plastic packaging bag. At the same time, the limit switch 17 ensures that the motor housing 5 moves within the specified range, preventing over- or under-positioning.

[0030] As the core 8 rotates, the pressing roller 11, under the action of the pressure rod 13, presses tightly against the surface of the core 8, ensuring the flatness of the plastic packaging bag during the winding process. The transmission rod 12, through the coordinated action of the lever 14 and the hydraulic telescopic rod 15, adjusts the pressure of the pressing roller 11 to ensure that plastic packaging bags of different thicknesses can be wound evenly.

[0031] When the winding reaches the preset length, the hydraulic push rod 4 moves in the opposite direction, and the motor box 5 drives the chuck 6 to disengage from the core 8. Under the action of gravity, the core 8 automatically falls into the discharge hopper 7, completing one winding operation. At this time, it is fed through the feeding mechanism to carry out the next round of winding operation. Throughout the process, the device has a compact structure and is easy to operate, which can effectively improve the winding efficiency and quality of plastic packaging bags.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A packaging bag winding device for printing plastic packaging bags, comprising a work frame (1), characterized in that, A conveyor frame (2) is fixedly connected to the top of one side of the work frame (1). Fixing frames (3) are fixedly connected to both sides of the middle part of the work frame (1). A core (8) is held between the two fixing frames (3). A discharge hopper (7) is provided on one side of the bottom of the core (8). A feeding hopper (9) is provided on the side of the bottom of the core (8) away from the discharge hopper (7). The discharge hopper (7) and the feeding hopper (9) are fixedly connected to the work frame (1) on both sides. A feeding mechanism is installed at the bottom between the discharge hopper (7) and the feeding hopper (9).

2. The packaging bag winding device for printing plastic packaging bags according to claim 1, characterized in that, The feeding mechanism includes a mounting frame (19), which is fixedly connected to the working frame (1). A turntable (20) is rotatably connected to the inner sides of both ends of the mounting frame (19). A motor (22) is installed on the outer sides of both ends of the mounting frame (19). The power output end of the motor (22) is fixedly connected to the turntable (20).

3. The packaging bag winding device for printing plastic packaging bags according to claim 2, characterized in that, A long rod (21) is rotatably connected to the outer ring area of ​​the turntable (20). A short rod (23) is rotatably connected to the middle of the long rod (21). The end of the short rod (23) away from the long rod (21) is rotatably connected to the mounting bracket (19). A triangular plate (25) is rotatably connected to the end of the long rod (21) away from the turntable (20).

4. The packaging bag winding device for printing plastic packaging bags according to claim 3, characterized in that, The middle part of the triangular plate (25) is rotatably connected to the end of the long rod (21) away from the turntable (20). One end of the triangular plate (25) is rotatably connected to the middle rod (24). The end of the middle rod (24) away from the triangular plate (25) is rotatably connected to the mounting bracket (19). The end of the triangular plate (25) away from the middle rod (24) is fixedly connected to a semi-circular support ring (26).

5. A packaging bag winding device for printing plastic packaging bags according to claim 1, characterized in that, Guide rods (16) are fixedly connected on both sides between the two fixed frames (3). Hydraulic push rods (4) are fixedly connected to the top of the two fixed frames (3). A motor box (5) is fixedly connected to the telescopic end of the hydraulic push rod (4). Limiters (17) are fixedly connected on both sides of the motor box (5). The limiters (17) and guide rods (16) are slidably connected through each other. A chuck (6) is fixedly connected to the power output end of the motor box (5). The chuck (6) rotates and fits against the core (8). A guide boss (18) is provided in the middle of the surface of the chuck (6). The guide boss (18) is slidably connected to the inner side of the core (8).

6. The packaging bag winding device for printing plastic packaging bags according to claim 1, characterized in that, The top surface of the work frame (1) is fixedly connected to a support column (10), and a transmission rod (12) is rotatably connected through the top of the support column (10). A pressure rod (13) is fixedly connected in the middle of the transmission rod (12). A pressing roller (11) is rotatably connected to the end of the pressure rod (13) away from the transmission rod (12). The pressing roller (11) is rotatably attached to the surface of the core (8). A lever plate (14) is fixedly connected to both ends of the transmission rod (12). A hydraulic telescopic rod (15) is rotatably connected to the end of the lever plate (14) away from the transmission rod (12). The telescopic end of the hydraulic telescopic rod (15) is fixedly connected to the lever plate (14). The bottom end of the hydraulic telescopic rod (15) is rotatably connected to the fixed frame (3).

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