A bag making machine with PV window pointed bottom bag
The sliding connection structure of the movable plate and guide rod driven by the hydraulic cylinder solves the problem of uneven heat pressing in the PV window pointed bottom bag making machine, achieving more stable heat pressing and limiting effects, and improving the overall performance of the bag making machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GUANGHUA PAPER PROD CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing PV window pointed bottom bag making machine, uneven hot-pressing contact occurs during the hot-pressing sealing process, which affects the forming effect.
The movable plate and guide rod are connected by a hydraulic cylinder-driven sliding structure, which, together with the heating component, enables stable movement and uniform contact of the hot press plate. The height of the movable plate and the distance of the moving baffle are adjusted by the sliding guidance of the guide slider and guide rod to ensure uniform hot pressing.
It improves hot pressing capacity, limit stop capacity, and movement protection capacity, ensuring the stability of the hot pressing process and the molding effect.
Smart Images

Figure CN224276488U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bag making machine technology, specifically a bag making machine with a PV window pointed bottom bag. Background Technology
[0002] PV window pointed bottom bag is a type of packaging bag with specific functions, mainly used for food packaging, especially meat packaging. The main material of PV window pointed bottom bag is polyvinyl chloride, which has high transparency, excellent barrier properties and heat-sealing properties, making it perform well in food packaging and often used in packaging scenarios for meat, fruit and other products.
[0003] In the manufacturing and processing of PV window pointed bottom bags, a bag making machine is required. The bag making machine for PV window pointed bottom bags usually refers to equipment specifically designed for making pointed bottom bags, especially those used for packaging PV windows (which may refer to a specific type of window). Its workflow includes a heat sealing process. If the contact is not uniform enough during heat sealing, it can directly affect the heat sealing effect. Utility Model Content
[0004] The purpose of this invention is to provide a bag making machine with a PV window pointed bottom bag, in order to solve the problem mentioned in the background art that its working process includes a hot-press sealing process, and if the contact is not uniform enough during hot pressing, it will directly affect the hot pressing molding effect.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bag-making machine for PV window pointed bottom bags, comprising a working frame, a feeding roller, and a receiving roller. A first guide roller is mounted on the top left side of the working frame, and a second guide roller is mounted on the top right side of the working frame. A fixed frame is fixed on the top of the working frame at the side of the second guide roller. A hydraulic cylinder is mounted on the top of the fixed frame, and a hydraulic telescopic rod is connected to the output end below the hydraulic cylinder. A movable plate is connected to the bottom of the hydraulic telescopic rod. Guide sliders are fixed at both ends of the movable plate. Guide rods are fixed at the front and rear positions on the fixed frame. A hot press plate is mounted at the bottom of the movable plate, and a heating component for heating is provided in the hot press plate.
[0006] As a further technical solution of this utility model, the guide slider is symmetrically distributed about the central axis of the movable plate, and the guide rod is symmetrically distributed about the central axis of the fixed frame.
[0007] As a further technical solution of this utility model, the guide slider is provided with a hole for the guide rod to pass through, and a sliding connection is formed between the guide rod and the guide slider.
[0008] As a further technical solution of this utility model, the front and rear positions of the top of the work frame are fixed with upright plates, and a third guide roller is connected between the front and rear upright plates. A working motor is installed on the end face of one of the upright plates, and the output end of the working motor is connected to the end face of the third guide roller.
[0009] As a further technical solution of this utility model, a vertical plate is fixed to the top of the upright plate with bolts, and a first telescopic rod is installed on the end face of the vertical plate. A movable baffle is connected to the telescopic end of the end face of the first telescopic rod.
[0010] As a further technical solution of this utility model, a groove is provided in the bottom of the movable baffle, and a ball is embedded in the groove.
[0011] Compared with the prior art, the beneficial effects of this utility model are: this bag making machine with PV window pointed bottom bag not only improves the hot pressing capacity, but also improves the limiting stop capacity and movement protection capacity of the bag making machine.
[0012] By fixing the fixed frame to the top of the work frame and assembling the hydraulic cylinder at the top of the fixed frame, the hydraulic telescopic rod extends and retracts accordingly after the hydraulic cylinder is activated, thus adjusting the height of the movable plate. During this process, since the guide rod passes through the interior of the guide slider, the movable plate can be guided by the guide rod and the guide slider when it moves. This allows the movable plate to descend, and after the heating component is activated, the hot press plate completes the corresponding hot pressing capacity. This makes the movement of the movable plate more uniform and makes it more stable during the hot pressing process.
[0013] By using bolts to fix the vertical plate to the top of the vertical plate and assembling the first telescopic rod on the end face of the vertical plate, the position of the movable baffle can be adjusted after the first telescopic rod is in operation. Thus, the distance between the two movable baffles can be adjusted, thereby limiting the front and rear ends of the material during material feeding, thereby improving the overall limiting and blocking capability.
[0014] A wear-resistant layer can be coated on the outer end face of the movable baffle to reduce wear during material feeding. At the same time, after the first telescopic rod is activated, the position of the movable baffle is adjusted. When the movable baffle moves, the ball bearings are embedded in the groove at the bottom of the movable baffle. Therefore, the movable baffle can rely on the groove and the ball bearings to provide rolling protection when it moves, thereby improving the overall movement protection capability. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a side view of the upright plate structure of this utility model;
[0017] Figure 3 This is a side view of the fixing frame structure of this utility model;
[0018] Figure 4 This is a partial frontal cross-sectional view of the movable baffle of this utility model.
[0019] In the diagram: 1. Working frame; 2. Feeding roller; 3. First guide roller; 4. Vertical plate; 5. Vertical plate; 6. Hydraulic cylinder; 7. Fixed frame; 8. Second guide roller; 9. Receiving roller; 10. Working motor; 11. Third guide roller; 12. First telescopic rod; 13. Moving baffle; 14. Hydraulic telescopic rod; 15. Movable plate; 16. Guide rod; 17. Guide slider; 18. Heating assembly; 19. Hot press plate; 20. Groove; 21. Ball bearing. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4 An embodiment of this utility model provides a bag making machine for a PV window pointed bottom bag, including a working frame 1, a feeding roller 2, and a receiving roller 9. A first guide roller 3 is installed on the top left side of the working frame 1, and a second guide roller 8 is installed on the top right side of the working frame 1. A fixing frame 7 is fixed on the top of the working frame 1 at the side position of the second guide roller 8. A hydraulic cylinder 6 is installed on the top of the fixing frame 7. A hydraulic telescopic rod 14 is connected to the output end below the hydraulic cylinder 6. A movable plate 15 is connected to the bottom of the hydraulic telescopic rod 14. Guide sliders 17 are fixed at the front and rear ends of the movable plate 15. Guide rods 16 are fixed at the front and rear positions on the fixing frame 7. A hot press plate 19 is installed at the bottom position of the movable plate 15. A heating component 18 for heating is provided in the hot press plate 19.
[0022] As a further technical solution of this utility model, the guide slider 17 is symmetrically distributed about the central axis of the movable plate 15, and the guide rod 16 is symmetrically distributed about the central axis of the fixed frame 7.
[0023] As a further technical solution of this utility model, the guide slider 17 is provided with a hole for the guide rod 16 to pass through, and the guide rod 16 and the guide slider 17 form a sliding connection.
[0024] As a further technical solution of this utility model, the front and rear positions of the top of the work frame 1 are fixed with upright plates 4, and a third guide roller 11 is connected between the front and rear upright plates 4. A working motor 10 is installed on the end face of one of the upright plates 4, and the output end of the working motor 10 is connected to the end face of the third guide roller 11.
[0025] As a further technical solution of this utility model, the top of the upright plate 4 is fixed with a vertical plate 5 by bolts, and a first telescopic rod 12 is installed on the end face of the vertical plate 5. The telescopic end of the first telescopic rod 12 is connected to a movable baffle 13.
[0026] As a further technical solution of this utility model, a groove 20 is provided in the bottom of the movable baffle 13, and a ball bearing 21 is embedded in the groove 20.
[0027] Furthermore, a ball bearing 21 is embedded in the groove 20, so the ball bearing 21 can roll in the groove 20. When the moving baffle 13 contacts the top surface of the third guide roller 11, it can play the purpose of rolling protection.
[0028] The material is further fed from the feeding roller 2 to the first guide roller 3, then guided above the third guide roller 11, then below the hot press plate 19, and then guided by the second guide roller 8 before being wound up at the take-up roller 9.
[0029] Working principle: First, during operation, material is fed from the feeding roller 2 to the first guide roller 3. Then, the material is guided above the third guide roller 11. The vertical plate 5 is fixed to the top of the vertical plate 4 with bolts, and the first telescopic rod 12 is assembled on the end face of the vertical plate 5. Therefore, after the first telescopic rod 12 is working, the position of the movable baffle 13 can be adjusted, and the distance between the two movable baffles 13 can be adjusted. This can limit the front and rear ends of the material during the guiding process. Then, the material moves to the lower position of the hot press plate 19, and the hydraulic cylinder 6 is activated to extend and retract the hydraulic telescopic rod 14. The height of the movable plate 15 is adjusted. After the heating component 18 is working, the hot press plate 19 completes the corresponding hot pressing capacity. Finally, after being guided by the second guide roller 8, the material is wound up at the position of the take-up roller 9.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A bag-making machine with a PV window pointed bottom bag, comprising a work frame (1), a feeding roller (2), and a receiving roller (9), characterized in that: The work frame (1) is equipped with a first guide roller (3) on the top left side and a second guide roller (8) on the top right side. A fixed frame (7) is fixed on the top of the work frame (1) at the side of the second guide roller (8). A hydraulic cylinder (6) is installed on the top of the fixed frame (7). A hydraulic telescopic rod (14) is connected to the output end of the hydraulic cylinder (6). A movable plate (15) is connected to the bottom of the hydraulic telescopic rod (14). Guide sliders (17) are fixed at the front and rear ends of the movable plate (15). Guide rods (16) are fixed at the front and rear positions on the fixed frame (7). A hot press plate (19) is installed at the bottom of the movable plate (15). A heating component (18) for heating is provided in the hot press plate (19).
2. The bag-making machine with a PV window pointed bottom bag according to claim 1, characterized in that: The guide slider (17) is symmetrically distributed about the central axis of the movable plate (15), and the guide rod (16) is symmetrically distributed about the central axis of the fixed frame (7).
3. A bag-making machine with a PV window pointed bottom bag according to claim 1, characterized in that: The guide slider (17) has a hole for the guide rod (16) to pass through, and a sliding connection is formed between the guide rod (16) and the guide slider (17).
4. A bag-making machine with a PV window pointed bottom bag according to claim 1, characterized in that: The work frame (1) has a vertical plate (4) fixed at the front and rear positions at the top. A third guide roller (11) is connected between the front and rear vertical plates (4). A working motor (10) is installed on the end face of one of the vertical plates (4). The output end of the working motor (10) is connected to the end face of the third guide roller (11).
5. A bag-making machine with a PV window pointed bottom bag according to claim 4, characterized in that: The top of the upright plate (4) is fixed with a vertical plate (5) by bolts. A first telescopic rod (12) is installed on the end face of the vertical plate (5). A movable baffle (13) is connected to the telescopic end of the end face of the first telescopic rod (12).
6. A bag-making machine with a PV window pointed bottom bag according to claim 5, characterized in that: The bottom of the movable baffle (13) is provided with a groove (20), and a ball bearing (21) is embedded in the groove (20).