Winding film sealing and cutting machine

Abstract

The utility model relates to the technical field of sealing and cutting machines, and discloses a wrapping film sealing and cutting machine which comprises a working table, a wrapping film body is arranged at the top of the working table, a portal frame is fixedly connected to the upper surface of the working table, an air cylinder is fixedly connected to the upper surface of the portal frame, and the output end of the air cylinder is fixedly connected with a tool rest. A cutter is slidably connected to the interior of the cutter rest, guide columns are slidably connected to the two ends of the interior of the cutter rest, and flattening assemblies are arranged on the two sides of the outer wall of the cutter rest; the flattening assembly comprises an L-shaped push plate and a flattening roller, the L-shaped push plate and the flattening roller are arranged on the two sides of the outer wall of the tool rest, and fixing frames are fixedly connected to the two sides of the outer wall of the tool rest. According to the sealing and cutting device, the film can be automatically flattened, it is guaranteed that the film surface is flat before sealing and cutting, the sealing and cutting quality is greatly improved, the packaging effect is guaranteed, packaging flaws caused by film surface wrinkles are reduced, and the production efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing and cutting machine technology, and in particular to a wrapping film sealing and cutting machine. Background Technology

[0002] In modern industrial production and logistics packaging, stretch film sealing and cutting machines are key packaging equipment widely used in the outer packaging of various products. From bulk packaging of food and daily necessities to protective packaging of industrial parts, stretch film sealing and cutting machines are indispensable for efficiently and accurately completing the sealing and cutting operations of stretch film to achieve product protection, fixation, and aesthetic display. They play an indispensable role in improving packaging efficiency and ensuring product quality.

[0003] Traditional stretch film sealing and cutting technology typically employs a simple motor-driven blade holder that descends linearly for sealing and cutting. Film transport relies on basic roller transmission, lacking an effective mechanism for controlling film surface flatness. During the sealing and cutting process, the blade only performs a simple cutting motion, with almost no specific design for adjusting the film's state before sealing and cutting. The overall technical principle focuses on completing the basic sealing and cutting process, with less consideration for detail control and improving packaging quality.

[0004] Traditional stretch film sealing and cutting machines are prone to wrinkles and unevenness in the actual packaging process. These wrinkles not only affect the aesthetic appearance of the packaging, but more seriously, during the sealing and cutting process, the uneven film surface can lead to problems such as misalignment of the sealing and cutting position and weak sealing, which greatly reduces the sealing and cutting quality, thereby affecting the overall packaging effect of the product, increasing the defect rate, and reducing production efficiency. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a stretch film sealing and cutting machine, which aims to improve the traditional stretch film sealing and cutting machine. In the actual packaging process, the stretch film is very prone to wrinkles and unevenness, which not only affects the appearance of the packaging, but more seriously, in the sealing and cutting stage, the uneven film surface will cause problems such as misalignment of the sealing and cutting position and insecure sealing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wrapping film sealing and cutting machine, comprising a worktable, a wrapping film body being provided on the top of the worktable, a gantry frame being fixedly connected to the upper surface of the worktable, a cylinder being fixedly connected to the upper surface of the gantry frame, a blade holder being fixedly connected to the output end of the cylinder, a blade being slidably connected inside the blade holder, guide columns being slidably connected to both ends inside the blade holder, and flattening components being provided on both sides of the outer wall of the blade holder;

[0007] The flattening assembly includes an L-shaped push plate and a flattening roller. The L-shaped push plate and the flattening roller are disposed on both sides of the outer wall of the tool holder. A fixed frame is fixedly connected to both sides of the outer wall of the tool holder. A triangular push plate is fixedly connected inside the fixed frame. A sliding groove is opened inside the fixed frame.

[0008] Furthermore, a screw is threadedly connected to the top of the tool holder, and a C-shaped push plate is rotatably connected to the bottom end of the screw. A trapezoidal clamp is slidably connected to the outer wall of the C-shaped push plate, and a reset component is provided inside the trapezoidal clamp.

[0009] Furthermore, the reset assembly includes a telescopic rod and a spring, one end of the telescopic rod is fixedly connected to the inside of the trapezoidal clamp, and the spring is sleeved on the outer wall of the telescopic rod.

[0010] Furthermore, one end of the telescopic rod is connected inside the tool holder, and the telescopic rod is used to guide the spring and the trapezoidal clamp.

[0011] Furthermore, one end of the spring is fixedly connected to the inside of the tool holder, and the other end of the spring is fixedly connected to the inside of the trapezoidal clamp.

[0012] Furthermore, one side of the outer wall of the trapezoidal clamp is slidably connected to the inside of the tool, and the trapezoidal clamp is used to limit the tool.

[0013] Furthermore, the top of the L-shaped push plate is slidably connected inside the triangular push plate, and the triangular push plate is used to drive the L-shaped push plate to move.

[0014] Furthermore, one side of the outer wall of the L-shaped push plate is slidably connected to the inside of the slide groove, and the slide groove is used to limit the L-shaped push plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the coordinated operation of the cylinder and the guide column can accurately drive the knife holder and its auxiliary components to move. Under the action of the triangular push plate, the L-shaped push plate and the flattening roller can automatically smooth the film, ensuring that the film surface is flat before sealing and cutting, greatly improving the sealing and cutting quality, ensuring the packaging effect, reducing packaging defects caused by film wrinkles, and effectively improving production efficiency.

[0017] 2. In this utility model, the screw drives the C-shaped push plate, which uses the inclined plane principle to drive the trapezoidal clamp. With the assistance of the spring, the tool can be easily disassembled and replaced, making the tool replacement operation simple and quick after long-term use. No complicated tools and procedures are required, reducing maintenance costs, reducing equipment downtime, and improving the overall operating efficiency and service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a wrapping film sealing and cutting machine proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of one side of the gantry structure of a wrapping film sealing and cutting machine proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the fixing frame of a wrapping film sealing and cutting machine proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the blade holder of a wrapping film sealing and cutting machine proposed in this utility model.

[0022] Legend:

[0023] 1. Workbench; 2. Stretch film body; 3. Gantry frame; 4. Cylinder; 5. Knife holder; 6. Guide column; 7. Fixing frame; 8. Triangular push plate; 9. L-shaped push plate; 10. Flattening roller; 11. Slide groove; 12. Knife; 13. Screw; 14. C-shaped push plate; 15. Trapezoidal clamp; 16. Telescopic rod; 17. Spring. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1 - Figure 4 An embodiment of this utility model provides a wrapping film sealing and cutting machine, including a worktable 1, a wrapping film body 2 on the top of the worktable 1, a gantry frame 3 fixedly connected to the upper surface of the worktable 1, a cylinder 4 fixedly connected to the upper surface of the gantry frame 3, generating a strong thrust to drive the blade holder 5 to move downward, the output end of the cylinder 4 is fixedly connected to the blade holder 5, when moving under the action of the cylinder 4 and the guide column 6, it drives the fixed frame 7 and the blade 12 to move downward together, the blade holder 5 is slidably connected to the inside of the blade holder 5, and the guide column 6 is slidably connected to both ends of the inside of the blade holder 5 to ensure that the blade holder 5 can move accurately and smoothly along its direction, and flattening components are provided on both sides of the outer wall of the blade holder 5;

[0026] The flattening assembly includes an L-shaped push plate 9 and a flattening roller 10. The L-shaped push plate 9 and the flattening roller 10 are located on both sides of the outer wall of the knife holder 5. The vertical part receives the pressure of the triangular push plate 8 inside the fixed frame 7, which drives the flattening roller 10 to move. Under the action of the triangular push plate 8, they move relative to each other, which helps the flattening roller 10 to smooth the wrapping film. Fixed frames 7 are fixedly connected to both sides of the outer wall of the knife holder 5, which drives the L-shaped push plate 9 and the flattening roller 10 to move. Triangular push plates 8 are fixedly connected inside the fixed frame 7. They are located inside the fixed frame 7 and have inclined surfaces with a specific angle on both sides. Under the downward pressure transmission of the knife holder 5, lateral pressure is applied to the L-shaped push plate 9, which causes the two L-shaped push plates 9 to move relative to each other. A sliding groove 11 is opened inside the fixed frame 7.

[0027] Specifically, the cylinder 4 is activated, causing the tool holder 5 to move smoothly downwards along the guide column 6. During this movement, the fixed frame 7 and the tool 12 move downwards together. At this time, the initial movement of the fixed frame 7 causes the L-shaped push plate 9 and the flattening roller 10 installed below it to be the first to touch the wrapping film. The vertical part of the L-shaped push plate 9 can effectively bear the pressure from the triangular push plate 8 inside the fixed frame 7. As the tool holder 5 continues to fall, the triangular push plate 8 inside the fixed frame 7 begins to function. The inclined surfaces on both sides of the triangular push plate 8 have a specific angle of inclination. Under the pressure transmission of the downward movement of the tool holder 5, they apply lateral pressure to the L-shaped push plate 9. The force causes the L-shaped push plates 9 on both sides to move relative to each other along the surface of the worktable 1. During this process, the L-shaped push plates 9 drive the flattening roller 10 to slide slowly above the film. By using the rolling of the flattening roller 10 and the smooth pushing of the L-shaped push plates 9, the wrapping film that may have wrinkles is gradually smoothed out, creating good conditions for the subsequent precise sealing and cutting by the cutter 12. Finally, the cutter 12, which has been preheated to a suitable temperature by the heating device, performs the sealing and cutting operation on the smoothed wrapping film. The cutter 12 is made of a special alloy material, which has good thermal conductivity and sharpness, and can quickly melt the film material and achieve a firm sealing effect.

[0028] Reference Figure 1 and Figure 4The top of the tool holder 5 is threadedly connected to a screw 13, which is precisely threaded to the tool holder 5. Driven by external power, the screw rotates, causing the C-shaped push plate 14 to slide inside the tool holder 5. The bottom end of the screw 13 is rotatably connected to the C-shaped push plate 14, which slides under the influence of the screw 13. Its inclined surface interacts with the corresponding inclined surface of the trapezoidal clamp 15, pushing the trapezoidal clamp 15 to move relative to it. The outer wall of the C-shaped push plate 14 is slidably connected to the trapezoidal clamp 15, which is installed at the connection point between the tool holder 5 and the tool 12. Pushed by the C-shaped push plate 14, the clamp moves relative to the tool 12, removing it from the tool holder 5, thus easily removing the tool 12 from the tool holder 5. The trapezoidal clamp 15 has a reset assembly inside, which includes a telescopic rod 16 and a spring 17. One end of the spring 17 is fixedly connected to the inside of the trapezoidal clamp 15. The spring 17 is sleeved on the outer wall of the telescopic rod 16. One end of the telescopic rod 16 is connected to the inside of the tool holder 5. The telescopic rod 16 is used to guide the spring 17 and the trapezoidal clamp 15. One end of the spring 17 is fixedly connected to the inside of the tool holder 5. The other end of the spring 17 is fixedly connected to the inside of the trapezoidal clamp 15. One side of the outer wall of the trapezoidal clamp 15 is slidably connected to the inside of the tool 12. The trapezoidal clamp 15 is used to limit the position of the tool 12. The top of the L-shaped push plate 9 is slidably connected to the inside of the triangular push plate 8. The triangular push plate 8 is used to drive the L-shaped push plate 9 to move. One side of the outer wall of the L-shaped push plate 9 is slidably connected to the inside of the slide groove 11. The slide groove 11 is used to limit the position of the L-shaped push plate 9.

[0029] Specifically, firstly, the drive screw 13 rotates. Based on the transmission principle of the screw thread, the screw 13 drives the C-shaped push plate 14 to slide inside the tool holder 5. The C-shaped push plate 14 has a unique inclined surface structure at both ends. During the sliding process, its inclined surface interacts with the corresponding inclined surface of the trapezoidal clamp 15. The trapezoidal clamp 15 is made of a high-strength material with a certain degree of toughness and is installed in the internal connection between the tool holder 5 and the tool 12. Under the push of the C-shaped push plate 14, the trapezoidal clamps 15 on both sides begin to move relative to each other. Simultaneously, the spring 17 plays an auxiliary role. The spring 17 is pre-stretched. During the process of the C-shaped push plate 14 pushing the trapezoidal clamp 15 to move, the tension of the spring 17 can ensure the stability and smoothness of the trapezoidal clamp 15 during the movement. When the trapezoidal clamp 15 is completely removed from the inside of the cutter 12 with the continuous push of the C-shaped push plate 14 and the assistance of the spring 17, the cutter 12 can be easily removed from the cutter holder 5, thereby completing the replacement of the cutter 12 and ensuring the continuous, efficient and stable operation of the sealing and cutting machine.

[0030] Working principle: When the stretch film sealing and cutting machine is needed, first place the film on the worktable 1. Then, start the cylinder 4 and guide the guide column 6 to drive the knife holder 5 to move downward. The knife holder 5 drives the fixed frame 7 and the cutter 12 to move together. At this time, the movement of the fixed frame 7 will drive the L-shaped push plate 9 and the flattening roller 10 to contact the film first. With the support of the worktable 1 and the continuous falling of the knife holder 5, the triangular push plate 8 inside the fixed frame 7 applies pressure to the L-shaped push plate 9. Through the inclined surfaces on both sides of the triangular push plate 8, the L-shaped push plates 9 on both sides move relative to each other. Then, the movement of the L-shaped push plate 9 drives the flattening roller 10 to slide above the film and flatten the film. Finally, the heated cutter 12 seals and cuts the film.

[0031] In addition, after prolonged use, the screw 13 can be driven to engage with the threaded relationship between the screw 13 and the tool holder 5, causing the screw 13 to drive the C-shaped push plate 14 to slide inside the tool holder 5. Then, the inclined surfaces at both ends of the C-shaped push plate 14 drive the trapezoidal clamp 15 to move relative to each other. When the spring 17 pulls, the trapezoidal clamp 15 moves inside the tool holder 5 and the tool 12. When the trapezoidal clamp 15 is completely removed from inside the tool 12, the tool 12 can be removed and replaced.

[0032] 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 stretch film sealing and cutting machine, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a wrapping film body (2), the upper surface of the workbench (1) is fixedly connected with a gantry frame (3), the upper surface of the gantry frame (3) is fixedly connected with a cylinder (4), the output end of the cylinder (4) is fixedly connected with a tool holder (5), the inside of the tool holder (5) is slidably connected with a tool (12), both ends of the inside of the tool holder (5) are slidably connected with guide columns (6), and flattening components are provided on both sides of the outer wall of the tool holder (5). The flattening assembly includes an L-shaped push plate (9) and a flattening roller (10). The L-shaped push plate (9) and the flattening roller (10) are arranged on both sides of the outer wall of the tool holder (5). A fixing frame (7) is fixedly connected to both sides of the outer wall of the tool holder (5). A triangular push plate (8) is fixedly connected inside the fixing frame (7). A sliding groove (11) is opened inside the fixing frame (7).

2. The wrapping film sealing and cutting machine according to claim 1, characterized in that: The top of the tool holder (5) is threaded with a screw (13), and the bottom end of the screw (13) is rotatably connected with a C-shaped push plate (14). The outer wall of the C-shaped push plate (14) is slidably connected with a trapezoidal clamp (15), and a reset component is provided inside the trapezoidal clamp (15).

3. The wrapping film sealing and cutting machine according to claim 2, characterized in that: The reset assembly includes a telescopic rod (16) and a spring (17). One end of the telescopic rod (16) is fixedly connected to the inside of the trapezoidal clamp (15), and the spring (17) is sleeved on the outer wall of the telescopic rod (16).

4. The stretch film sealing and cutting machine according to claim 3, characterized in that: One end of the telescopic rod (16) is connected inside the tool holder (5), and the telescopic rod (16) is used to guide the spring (17) and the trapezoidal clamp (15).

5. A wrapping film sealing and cutting machine according to claim 3, characterized in that: One end of the spring (17) is fixedly connected to the inside of the tool holder (5), and the other end of the spring (17) is fixedly connected to the inside of the trapezoidal clamp (15).

6. A wrapping film sealing and cutting machine according to claim 3, characterized in that: The outer wall of the trapezoidal clamp (15) is slidably connected to the inside of the tool (12), and the trapezoidal clamp (15) is used to limit the tool (12).

7. The stretch film sealing and cutting machine according to claim 1, characterized in that: The top of the L-shaped push plate (9) is slidably connected to the inside of the triangular push plate (8), and the triangular push plate (8) is used to drive the L-shaped push plate (9) to move.

8. A wrapping film sealing and cutting machine according to claim 1, characterized in that: The outer wall of the L-shaped push plate (9) is slidably connected to the inside of the slide groove (11), and the slide groove (11) is used to limit the L-shaped push plate (9).

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