A packaging bag hot-forming device
Through the coordinated design of the worktable, hot cutting mechanism, conveying mechanism and correction mechanism, the problem of limited contact area between heating element and blade is solved, realizing efficient and uniform cutting and sealing of packaging bags, and adapting to the needs of irregular cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河南恒辉同创生物科技有限公司
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-02
AI Technical Summary
In existing hot-cutting forming equipment for packaging bags, the limited contact area between the heating element and the blade results in uneven temperature distribution on the blade surface, inconsistent edge melting effect during cutting, poor sealing in some areas, and difficulty in uniformly covering irregularly shaped cutting molds, which can easily lead to local overheating or insufficient heating.
The system employs a worktable, a hot cutting mechanism, a conveying mechanism, and a correction mechanism working in tandem. It uses a hydraulic push rod to drive the limit frame, a cylinder for fine-tuning, and a motor to drive the conveying components to achieve efficient cutting and sealing of packaging bags. A heat-conducting plate assists in preheating, and a template completes the cutting and sealing process.
It achieves efficient hot cutting and forming of packaging bags, ensures consistent sealing of the cut edges, avoids local overheating or underheating, and adapts to irregular cutting needs.
Smart Images

Figure CN224311369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag forming technology, and in particular to a packaging bag hot cutting forming device. Background Technology
[0002] Packaging bags are bag-shaped packaging containers used for holding, protecting, transporting, and displaying goods. They are made of paper, plastic, cloth, and metal foil materials and are characterized by being foldable and portable. The process involves cutting and sealing the packaging material using heated blades and molds. This process uses high temperatures to melt the edges of the material, achieving a seal while cutting, thus forming a packaging bag with a specific shape.
[0003] Packaging bag hot cutting and forming equipment is a specialized device used in the packaging bag production process. It cuts packaging materials by heating and simultaneously forms the edges. Its main function is to melt and bond the material at the cut edge using high temperature while cutting the packaging material, forming a flat, sealed, and tear-resistant edge, thereby achieving the shaping of the packaging bag. However, in existing packaging bag hot cutting and forming equipment, the heating blade and mold are built-in, and the surface is wound for heating. The contact area between the heating element and the blade is limited, resulting in uneven temperature distribution on the blade surface. The edge melting effect is inconsistent during cutting, and some areas may have poor sealing. For irregularly shaped cutting molds, the heating element is difficult to uniformly cover the complex contour, which can easily cause local overheating and underheating. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a packaging bag hot cutting forming device, which aims to improve the existing technology. The limited contact area between the heating element and the blade leads to uneven temperature distribution on the blade surface, inconsistent edge melting effect during cutting, poor sealing in some areas, and problems such as local overheating and insufficient heating.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a packaging bag hot-cutting forming device, comprising a worktable, a hot-cutting mechanism slidably connected to the top of the outer wall of the worktable, the hot-cutting mechanism being used for quickly cutting packaging bags, a conveying mechanism fixedly connected to the right side of the outer wall of the worktable, the conveying mechanism being used for conveying packaging bags, and a correction mechanism fixedly connected to the left side of the outer wall of the worktable; the hot-cutting mechanism includes a fixed frame, the fixed frame being fixedly connected to the top of the outer wall of the worktable, a plurality of hydraulic push rods fixedly connected to the top of the outer wall of the fixed frame, a limit frame fixedly connected to the output end of the hydraulic push rods, a cylinder fixedly connected to the middle of the inner wall of the limit frame, a template fixedly connected to the bottom of the outer wall of the limit frame, and a conveying component provided at the bottom of the outer wall of the template.
[0006] As a further description of the above technical solution:
[0007] The conveying assembly includes a heat-conducting plate, which is fixedly connected to the front and rear sides of the top of the workbench. A rotating shaft is rotatably connected to the left and right sides of the inner wall of the heat-conducting plate. A motor is fixedly connected to the middle of the inner wall of the workbench. A rotating shaft is fixedly connected to the output end of the motor. A conveyor belt is rotatably connected to one side of the outer wall of the rotating shaft. The rotating shaft is connected to the rotating shaft through the conveyor belt.
[0008] As a further description of the above technical solution:
[0009] The conveying mechanism includes a partition plate, which is rotatably connected to the top right side of the workbench. A connecting plate is slidably connected to the bottom of the outer wall of the partition plate. Screws are threadedly connected to the front and rear sides of the outer wall of the connecting plate. A slide rod is slidably connected to the left side of the outer wall of the partition plate. A roller is rotatably connected to the other end of the slide rod. A drive assembly is fixedly connected to the bottom of the outer wall of the partition plate.
[0010] As a further description of the above technical solution:
[0011] The drive assembly includes an electric push rod, which is fixedly connected to the right side of the inner wall of the worktable. The output end of the electric push rod is rotatably connected to a connecting rod. A connecting shaft is fixedly connected to one side of the outer wall of the connecting rod. A diagonal brace is rotatably connected to the other side of the partition, and the diagonal brace is rotatably connected to the right side of the inner wall of the worktable.
[0012] As a further description of the above technical solution:
[0013] The correction mechanism includes a second fixed frame, which is fixedly connected to the top left side of the workbench. A baffle is slidably connected to the inner wall of the second fixed frame on an adjacent side, and an adjustment component is fixedly connected to the top of the outer wall of the baffle.
[0014] As a further description of the above technical solution:
[0015] The adjustment assembly includes a throttle, which is fixedly connected to the top of the outer wall of the second fixing frame, and a connecting frame is fixedly connected to the bottom of the outer wall of the throttle.
[0016] As a further description of the above technical solution:
[0017] The inner wall of the first fixing frame is slidably connected to the front and rear sides of the limiting rod, and the bottom of the outer wall of the limiting rod is penetrated by the limiting plate.
[0018] As a further description of the above technical solution:
[0019] Foot pads are fixedly connected to the four corners of the bottom of the workbench, and an operating table is fixedly connected to the front side of the outer wall of the workbench.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the device is based on a workbench, with a conveying mechanism for feeding, a correction mechanism for calibration, and a hot cutting mechanism driven by a hydraulic push rod to limit the frame. The cylinder inside the limit frame makes fine adjustments, and the bottom template works in conjunction with the conveying assembly. The motor drives the rotating shaft, which rotates via the conveyor belt to transport the packaging bag. The heat-conducting plate assists in preheating, and the heating completes the cutting and sealing of the packaging bag when the template descends. All parts work together to achieve efficient hot cutting and forming.
[0022] 2. In this utility model, in the conveying mechanism, the partition is rotatably connected to the top right side of the workbench, and its bottom connecting plate can be adjusted in position by screws. The left slide rod and roller assist in material conveying. The electric push rod of the drive component is fixed to the right side of the inner wall of the workbench. The partition is driven to rotate through the connecting rod and connecting shaft to achieve angle adjustment. The diagonal brace provides support for the rotation of the partition, ensuring stable and efficient conveying. Attached Figure Description
[0023] Figure 1 This is a perspective view of a packaging bag heat-cutting and forming device proposed in this utility model;
[0024] Figure 2 This is a front view of a packaging bag heat-cutting and forming device proposed in this utility model;
[0025] Figure 3 This is a structural exploded view of a packaging bag heat-cutting and forming device proposed in this utility model;
[0026] Figure 4 This is a partial structural exploded view of a packaging bag hot-cutting forming device proposed in this utility model;
[0027] Figure 5 This is a partial structural schematic diagram of a packaging bag hot-cutting forming device proposed in this utility model.
[0028] Legend:
[0029] 1. Workbench; 2. Hot cutting mechanism; 201. Fixed frame one; 202. Hydraulic push rod; 203. Cylinder; 204. Limiting frame; 205. Template; 206. Conveying assembly; 2061. Heat-conducting plate; 2062. Motor; 2063. Rotating shaft; 2064. Conveyor belt; 2065. Rotating shaft; 3. Conveying mechanism; 301. Partition plate; 302. Connecting plate; 303. Screw; 304. Slide rod; 305. Roller; 306. Drive assembly; 3061. Electric push rod; 3062. Connecting rod; 3063. Connecting shaft; 3064. Diagonal brace; 4. Correction mechanism; 401. Fixed frame two; 402. Baffle; 403. Adjustment assembly; 4031. Throttle; 4032. Connecting frame; 5. Limiting rod; 6. Limiting plate; 7. Foot pad; 8. Operating table. Detailed Implementation
[0030] 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.
[0031] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a packaging bag hot-cutting forming device, including a workbench 1, a hot-cutting mechanism 2 slidably connected to the top of the outer wall of the workbench 1, the hot-cutting mechanism 2 being used for rapid cutting of packaging bags, a conveying mechanism 3 fixedly connected to the right side of the outer wall of the workbench 1, the conveying mechanism 3 being used for conveying packaging bags, and a correction mechanism 4 fixedly connected to the left side of the outer wall of the workbench 1; the hot-cutting mechanism 2 includes a fixing frame 201, the fixing frame 201 being fixedly connected to the top of the outer wall of the workbench 1, and a plurality of hydraulic push rods 202 fixedly connected to the top of the outer wall of the fixing frame 201, the output end of the hydraulic push rods 202 being fixedly connected to a limit frame 204, the inner wall of the limit frame 204 being... A cylinder 203 is fixedly connected to the middle part. A template 205 is fixedly connected to the bottom of the outer wall of the limiting frame 204. A conveying assembly 206 is provided at the bottom of the outer wall of the template 205. The conveying assembly 206 includes a heat-conducting plate 2061. The heat-conducting plate 2061 is fixedly connected to the front and rear sides of the top of the workbench 1. A rotating shaft 2065 is rotatably connected to the left and right sides of the inner wall of the heat-conducting plate 2061. A motor 2062 is fixedly connected to the middle of the inner wall of the workbench 1. A rotating shaft 2063 is fixedly connected to the output end of the motor 2062. A conveyor belt 2064 is rotatably connected to one side of the outer wall of the rotating shaft 2063. The rotating shaft 2063 is connected to the rotating shaft 2065 through the conveyor belt 2064.
[0032] Specifically, the hot-cutting forming device for packaging bag production consists of a workbench 1, a hot-cutting mechanism 2, a conveying mechanism 3, and a correction mechanism 4. The workbench 1 serves as the foundation of the device, supporting all components. The hot-cutting mechanism 2 is slidably connected to the top of its outer wall, responsible for rapid and precise cutting. The conveying mechanism 3, fixed on the right, can smoothly transport the packaging bags according to their size and shape. The correction mechanism 4 on the left can adjust the position of the bag body to ensure cutting accuracy. Inside the hot-cutting mechanism 2, a fixed frame 201 is connected to the workbench 1 to ensure stability. Multiple hydraulic push rods 202 quickly push the cutting device, a cylinder 203 provides cutting power, a limit frame 204 ensures cutting accuracy, and a template 205 adapts to the shape of the bag body to achieve accurate cutting. The heat-conducting plate 2061 in the conveying component 206 evenly transfers heat, and the motor 2062 drives the rotating shaft 2065 via the rotating shaft 2063 and the conveyor belt 2064 to smoothly transport the cut packaging bags.
[0033] Reference Figure 1 , Figure 2 and Figure 5 The conveying mechanism 3 includes a partition 301, which is rotatably connected to the top right side of the workbench 1. A connecting plate 302 is slidably connected to the bottom of the outer wall of the partition 301. Screws 303 are threadedly connected to the front and rear sides of the outer wall of the connecting plate 302. A slide rod 304 is slidably connected to the left side of the outer wall of the partition 301. A roller 305 is rotatably connected to the other end of the slide rod 304. A drive assembly 306 is fixedly connected to the bottom of the outer wall of the partition 301. The drive assembly 306 includes an electric push rod 3061, which is fixedly connected to the right side of the inner wall of the workbench 1. A connecting rod 3062 is rotatably connected to the output end of the electric push rod 3061. A connecting shaft 3063 is fixedly connected to one side of the outer wall of the connecting rod 3062. A diagonal brace 3064 is rotatably connected to the other side of the partition 301. The diagonal brace 3064 is rotatably connected to the right side of the inner wall of the workbench 1.
[0034] Specifically, the partition 301 is rotatably fixed to the top right side of the workbench 1, serving both as a divider and a support. A connecting plate 302 is slidably connected to its bottom, and the front and rear sides are reinforced by screws 303. A slide rod 304 is slidably mounted on the left side, and the other end of the slide rod 304 is rotatably connected to a roller 305 to provide support and stability. In the drive assembly 306, the electric push rod 3061 is fixed to the right side of the inner wall of the workbench 1, and the output end is rotatably connected to a connecting rod 3062. A connecting shaft 3063 is fixed on one side of the rod to provide power for conveying. The other side of the partition 301 is rotatably connected to a diagonal brace 3064, which is fixed to the right side of the inner wall of the workbench 1 to enhance overall stability and ensure the efficient operation of the conveying mechanism 3.
[0035] Reference Figure 1 , Figure 2 and Figure 3 The correction mechanism 4 includes a second fixed frame 401, which is fixedly connected to the top left side of the workbench 1. A baffle 402 is slidably connected to the inner wall of the second fixed frame 401 on an adjacent side. An adjustment component 403 is fixedly connected to the top of the outer wall of the baffle 402. The adjustment component 403 includes a handle 4031, which is fixedly connected to the top of the outer wall of the second fixed frame 401. A connecting frame 4032 is fixedly connected to the bottom of the outer wall of the handle 4031. A limit rod 5 is slidably connected to the front and rear sides of the inner wall of the first fixed frame 201. A limit plate 6 passes through the bottom of the outer wall of the limit rod 5. Foot pads 7 are fixedly connected to the four corners of the bottom of the workbench 1. An operating table 8 is fixedly connected to the front side of the outer wall of the workbench 1.
[0036] Specifically, the correction mechanism 4 is supported by a fixed frame on the top left side of the workbench 1. A baffle 402, which is slidably connected to the inner wall of the fixed frame on an adjacent side, can constrain the position of the material during the material conveying process. The adjustment component 403 on the top of the baffle 402 can adjust the position of the baffle 402 by rotating the handle 4031 to drive the connecting frame 4032, thereby calibrating the lateral position of the material. The limiting rod 5, which is slidably connected to the front and rear sides of the inner wall of the workbench 1, and the limiting plate 6 that runs through the bottom, play a role in limiting and guiding other components. Together with the bottom foot pads 7 of the workbench 1, they keep the equipment stable. The operating table 8 on the front side of the workbench 1 facilitates the operator to perform relevant operations and parameter settings, and together they complete the correction of the material.
[0037] Working principle: This packaging bag hot cutting forming device is based on the workbench 1. The conveying mechanism 3 delivers the packaging bag to the designated position, the correction mechanism 4 calibrates the position of the packaging bag, and the hot cutting mechanism 2 drives the limit frame 204 to rise and fall through the hydraulic push rod 202 at the top of the workbench 1. The cylinder 203 in the limit frame 204 can be further fine-tuned. The bottom template 205 and the conveying component 206 cooperate to complete the hot cutting work. In the conveying component 206, the motor 2062 drives the rotating shaft 2063, and the rotating shaft 2063 drives the rotating shaft 2065 to rotate through the conveyor belt 2064, so that the conveyor belt 2064 between the heat-conducting plates 2061 runs, carrying and conveying the packaging bag. At the same time, the heat-conducting plates 2061 can preheat the packaging bag. When the template 205 descends, the heating is used to cut and seal the packaging bag. All mechanisms work together to achieve efficient hot cutting forming.
[0038] The conveying mechanism 3 is mainly composed of a partition 301 rotatably connected to the top right side of the workbench 1. It is powered by an electric push rod 3061, which is fixed to the right side of the inner wall of the workbench 1. The connecting rod 3062 rotatably connected to its output end drives the connecting shaft 3063, thereby pushing the partition 301 to rotate and achieve angle adjustment. The connecting plate 302 slidably connected to the bottom of the partition 301 is fixed by screws 303 and can be adjusted to adapt to different needs. At the same time, the sliding rod 304 slidably connected to the left side of the partition 301 and the rotatably connected roller 305 assist in material conveying. The inclined brace 3064 at the bottom of the partition 301 is rotatably connected to the right side of the inner wall of the workbench 1, providing support and stability for the rotation of the partition 301, and together ensuring the smooth and efficient material conveying process.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A packaging bag heat-cutting and forming device, comprising a worktable (1), characterized in that: A hot cutting mechanism (2) is slidably connected to the top of the outer wall of the workbench (1). The hot cutting mechanism (2) is used to quickly cut the packaging bag. A conveying mechanism (3) is fixedly connected to the right side of the outer wall of the workbench (1). The conveying mechanism (3) is used to convey the packaging bag. A correction mechanism (4) is fixedly connected to the left side of the outer wall of the workbench (1). The hot cutting mechanism (2) includes a fixed frame (201), which is fixedly connected to the top of the outer wall of the workbench (1). Multiple hydraulic push rods (202) are fixedly connected to the top of the outer wall of the fixed frame (201). A limit frame (204) is fixedly connected to the output end of the hydraulic push rod (202). A cylinder (203) is fixedly connected to the middle of the inner wall of the limit frame (204). A template (205) is fixedly connected to the bottom of the outer wall of the limit frame (204). A conveying component (206) is provided at the bottom of the outer wall of the template (205).
2. The packaging bag heat-cutting and forming device according to claim 1, characterized in that: The conveying assembly (206) includes a heat-conducting plate (2061), which is fixedly connected to the front and rear sides of the top of the workbench (1). The inner wall of the heat-conducting plate (2061) is rotatably connected to the left and right sides of the left and right sides of the inner wall. A motor (2062) is fixedly connected to the middle of the inner wall of the workbench (1). A rotating shaft (2063) is fixedly connected to the output end of the motor (2062). A conveyor belt (2064) is rotatably connected to one side of the outer wall of the rotating shaft (2063). The rotating shaft (2063) is connected to the rotating shaft (2065) through the conveyor belt (2064).
3. The packaging bag hot-cutting forming device according to claim 1, characterized in that: The conveying mechanism (3) includes a partition (301), which is rotatably connected to the top right side of the workbench (1). A connecting plate (302) is slidably connected to the bottom of the outer wall of the partition (301). Screws (303) are threadedly connected to the front and rear sides of the outer wall of the connecting plate (302). A slide rod (304) is slidably connected to the left side of the outer wall of the partition (301). A roller (305) is rotatably connected to the other end of the slide rod (304). A drive assembly (306) is fixedly connected to the bottom of the outer wall of the partition (301).
4. The packaging bag hot-cutting forming device according to claim 3, characterized in that: The drive assembly (306) includes an electric push rod (3061), which is fixedly connected to the right side of the inner wall of the workbench (1). The output end of the electric push rod (3061) is rotatably connected to a connecting rod (3062). A connecting shaft (3063) is fixedly connected to one side of the outer wall of the connecting rod (3062). A diagonal brace (3064) is rotatably connected to the other side of the partition (301). The diagonal brace (3064) is rotatably connected to the right side of the inner wall of the workbench (1).
5. The packaging bag heat-cutting and forming device according to claim 1, characterized in that: The correction mechanism (4) includes a second fixed frame (401), which is fixedly connected to the top left side of the workbench (1). A baffle (402) is slidably connected to the inner wall of the second fixed frame (401) on an adjacent side, and an adjustment component (403) is fixedly connected to the top of the outer wall of the baffle (402).
6. The packaging bag heat-cutting and forming device according to claim 5, characterized in that: The adjustment assembly (403) includes a throttle (4031), which is fixedly connected to the top of the outer wall of the second fixing frame (401), and a connecting frame (4032) is fixedly connected to the bottom of the outer wall of the throttle (4031).
7. The packaging bag heat-cutting and forming device according to claim 1, characterized in that: The inner wall of the fixed frame (201) is slidably connected to the front and rear sides of the limiting rod (5), and the bottom of the outer wall of the limiting rod (5) is penetrated by the limiting plate (6).
8. The packaging bag heat-cutting and forming device according to claim 1, characterized in that: Foot pads (7) are fixedly connected to the four corners of the bottom of the workbench (1), and an operating table (8) is fixedly connected to the front side of the outer wall of the workbench (1).