Lower film positioning mechanism for three-dimensional transparent film packaging machine
By introducing a fixed frame and rotating roller structure into the three-dimensional transparent film packaging machine, the problem of wrinkles when the film comes into contact with the packaging box is solved, and the aesthetics and moisture-proof effect are improved.
Patent Information
- Application Number
- CN202522296473.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-29
AI Technical Summary
Traditional transparent film packaging machines are prone to wrinkling when the film is unfolded and comes into contact with the packaging box, which affects the appearance and reduces the moisture protection effect.
A film positioning mechanism for a three-dimensional transparent film packaging machine was designed, including a fixed frame, an air suction pipe, and a rotating roller structure. The air suction pipe adsorbs the film, and the rotating roller provides double positioning to avoid the formation of film wrinkles.
It effectively reduces film wrinkles, maintains the packaging's aesthetic appeal and moisture-proof properties, and ensures high efficiency in the packaging process.
Smart Images

Figure CN224676545U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of three-dimensional transparent film packaging machine technology, specifically to the lower film positioning mechanism of a three-dimensional transparent film packaging machine. Background Technology
[0002] The transparent film 3D packaging machine is a widely applicable machine for transparent film packaging of pharmaceutical boxes. It not only enhances the appearance of the boxes but also provides moisture and humidity protection. The entire packaging process involves a box feeding mechanism, a box filling mechanism, and a packaging mechanism. The box feeding mechanism is the connecting device that enables coordinated production between the transparent film 3D packaging machine, the box filling machine, and the box production line. By rotating the horizontally placed cardboard box 90 degrees through a mechanism, the box enters the packaging operation upright, facilitating the transparent film packaging. Traditional transparent film 3D packaging machines typically use a steering belt and steering blocks to rotate the incoming cardboard box 90 degrees to stand it upright.
[0003] In actual use, the box is usually transported to the front of the film-coating structure of the packaging machine by the box transport device. Then, the box is pushed out by the cylinder and enters the packaging machine to complete the packaging of the goods. However, in actual use, if the part of the film that needs to be in contact with the packaging box directly contacts and wraps the packaging, wrinkles are easily generated, which not only affects the appearance, but also generates air bubbles, affecting the moisture protection of the packaging. For this reason, we have proposed the lower film positioning mechanism of the three-dimensional transparent film packaging machine. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a lower film positioning mechanism for a three-dimensional transparent film packaging machine. This solves the problem that in actual use, if the part of the film that needs to be in contact with the packaging box directly contacts and wraps the packaging, wrinkles are easily generated, which not only affects the appearance but also creates air bubbles, affecting the moisture-proof function of the packaging.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] The lower film positioning mechanism of a three-dimensional transparent film packaging machine includes a fixed frame. Two first fixed blocks are fixedly installed on one side of the fixed frame. A fixed frame is fixedly installed on one side of the first fixed blocks. A snap-fit hole is opened on the top surface of the fixed frame. A connecting tube is arranged inside the fixed frame. One end of the connecting tube is snapped together with the snap-fit hole. The outer wall of the connecting tube has a plurality of suction tubes. The suction tubes are connected to the connecting tube and are evenly distributed on the outer wall of the connecting tube. A fixed plate is snapped into the inside of the fixed frame. A plurality of suction holes are opened on one side of the fixed plate. The plurality of suction holes are evenly distributed on one side of the fixed plate and are respectively aligned with the plurality of suction tubes.
[0007] Preferably, a sealing ring is fixedly installed inside the connecting pipe, a baffle is fixedly installed on one side of the fixing frame, and the two sides of the baffle are fixedly installed together with the first fixing block.
[0008] Preferably, a second fixing block is fixedly installed on one side of the first fixing block, a first rotating groove is provided on one side of the second fixing block, a rotating block is provided inside the first rotating groove, two mounting plates are fixedly installed on the bottom surface of the rotating block, a locking hole is provided on one side of the mounting plate, a rotating roller is provided on the bottom surface of the rotating block, and a first rotating shaft is fixedly installed on both sides of the rotating roller. The rotating roller is connected to the two mounting plates by the first rotating shaft.
[0009] Preferably, a second rotating groove is provided on both sides of the interior of the first rotating groove, and a second rotating shaft is fixedly installed on both sides of the rotating block. The rotating block is engaged with the interior of the first rotating groove through the second rotating groove and the second rotating shaft.
[0010] Preferably, a spring is fitted onto the outer wall of the second rotating shaft, and the spring is located inside the second rotating groove.
[0011] Preferably, the outer wall surface of the rotating roller is covered with a protective pad, which is a rubber structure.
[0012] In summary, the present invention has the following main advantages:
[0013] 1. By setting a fixed frame, it can serve as a structure for mounting the device and the packaging machine body. The packaging device can be stably installed inside the packaging machine for use, and can be fixedly installed with other necessary electrical components to ensure that the packaging machine can be used normally. Through the design of the connecting pipe and the suction pipe, the part located outside the fixed frame can be connected and installed with the external pressure pump structure. By generating suction, the film is adsorbed, reducing the probability of film wrinkles and avoiding wrinkles affecting the appearance and moisture-proof performance of the packaging.
[0014] 2. The design of the second fixing block, with its gap between itself and the fixing frame, provides a first-level limit on the edge of the film. The design of the rotating roller, with its snap-fit mechanism, allows it to rotate around the first rotating shaft. Together with the second fixing block, it provides double-limiting for both sides of the film, further reducing the probability of wrinkles when the film is subjected to impact, thus ensuring packaging efficiency. The design of the second rotating groove and the second rotating shaft allows the rotating block to be stably confined within the first rotating groove, while also allowing the rotating block to rotate around the first rotating groove as its axis. This prevents the edge-limiting mechanism composed of the second fixing block and the rotating roller from hindering the film installation. During installation, the rotating block can be rotated to make it perpendicular to the fixing frame. After the material is loaded, it can be reset to limit the edge of the film. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the baffle structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the second fixing block structure of this utility model.
[0018] Reference numerals in the attached drawings: 1. Fixing frame; 2. First fixing block; 3. Fixing frame; 4. Snap-fit hole; 5. Connecting pipe; 6. Suction pipe; 7. Fixing plate; 8. Suction hole; 9. Sealing ring; 10. Baffle; 11. Second fixing block; 12. First rotating groove; 13. Rotating block; 14. Mounting plate; 15. Rotating roller; 16. First rotating shaft; 17. Second rotating groove; 18. Second rotating shaft; 19. Spring; 20. Protective pad. Detailed Implementation
[0019] 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.
[0020] refer to Figures 1-3The lower film positioning mechanism of the three-dimensional transparent film packaging machine includes a fixing frame 1. The fixing frame 1 is designed to serve as a structure for mounting the device to the packaging machine body, allowing the packaging device to be stably installed inside the packaging machine for use. It can also be fixedly installed with other necessary electrical components to ensure normal operation of the packaging machine. Two first fixing blocks 2 are fixedly mounted on one side of the fixing frame 1, and a fixing frame 3 is fixedly mounted on one side of each first fixing block 2. A snap-fit hole 4 is provided on the top surface of the fixing frame 3. A connecting pipe 5 is provided inside the fixing frame 3, and one end of the connecting pipe 5 is snapped into the snap-fit hole 4. The wall has several suction pipes 6, which are connected to the connecting pipe 5. The suction pipes 6 are evenly distributed on the outer wall of the connecting pipe 5. The fixing plate 7 is snapped into the inside of the fixing frame 3. Several suction holes 8 are opened on one side of the fixing plate 7. The suction holes 8 are evenly distributed on one side of the fixing plate 7. The suction holes 8 are aligned with the suction pipes 6 respectively. Through the design of the connecting pipe 5 and the suction pipes 6, the part located outside the fixing frame 3 can be connected and installed with the external pressure pump structure. By generating suction, the film is adsorbed, reducing the probability of film wrinkles and avoiding wrinkles from affecting the appearance and moisture-proof performance of the packaging.
[0021] A sealing ring 9 is fixedly installed inside the connecting pipe 5. The sealing ring 9 can seal the part where the suction pipe 6 is connected to the air pressure pump pipe structure to prevent air leakage at the connection point, which would affect the actual adsorption effect. A baffle 10 is fixedly installed on one side of the fixing frame 1. The two sides of the baffle 10 are fixedly installed together with the first fixing block 2. The design of the baffle 10 can increase the stability of the two first fixing blocks 2 and ensure the stability of the first fixing blocks 2 and the structure installed on them. On the other hand, it can block the boxes conveyed into the packaging machine to prevent them from exceeding the operating range and causing the packaging operation to be unable to proceed normally.
[0022] A second fixing block 11 is fixedly installed on one side of the first fixing block 2. Through the design of the second fixing block 11, the gap between itself and the fixing frame 3 can provide a first-level limit for the edge of the film. A first rotating groove 12 is opened on one side of the second fixing block 11. A rotating block 13 is set inside the first rotating groove 12. Two mounting plates 14 are fixedly installed on the bottom surface of the rotating block 13. A locking hole is opened on one side of the mounting plate 14. A rotating roller 15 is set on the bottom surface of the rotating block 13. A first rotating shaft 16 is fixedly installed on both sides of the rotating roller 15. The rotating roller 15 is locked together with the two mounting plates 14 through the first rotating shaft 16. Through the design of the rotating roller 15, its locking design can rotate around the first rotating shaft 16 as the axis. With the second fixing block 11, the two sides of the film can be double-limited, further avoiding the probability of the film wrinkling when subjected to impact, and ensuring the efficiency of packaging.
[0023] The first rotating groove 12 has a second rotating groove 17 on both sides, and the rotating block 13 has a second rotating shaft 18 fixedly installed on both sides. The rotating block 13 is engaged with the inside of the first rotating groove 12 through the second rotating groove 17 and the second rotating shaft 18. The design of the second rotating groove 17 and the second rotating shaft 18 allows the rotating block 13 to be stably confined inside the first rotating groove 12, and at the same time allows the rotating block 13 to rotate around the first rotating groove 12 as an axis. This avoids the edge limiting mechanism composed of the second fixed block 11 and the rotating roller 15 from hindering the installation of the film. During the installation process, the rotating block 13 can be rotated to make the rotating block 13 perpendicular to the fixed frame 3. After the material is loaded, it can be reset to limit the edge of the film.
[0024] A spring 19 is sleeved on the outer wall of the second rotating shaft 18. The spring 19 is located inside the second rotating groove 17. Through the design of the spring 19, its elasticity allows the rotating block 13 to be quickly reset by its own gravity after the film is installed, as long as the external force is released, thus avoiding forgetting to reset and affecting the normal use of the device.
[0025] The outer wall of the rotating roller 15 is covered with a protective pad 20, which is made of rubber. The design of the protective pad 20 can prevent the rotating roller 15 from directly contacting the film and thus limit its movement, preventing the rotating roller 15 from scratching or even damaging the film on the outer wall of the film and causing unnecessary losses.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A film positioning mechanism for a three-dimensional transparent film packaging machine, comprising a fixed frame (1), characterized in that, Two first fixing blocks (2) are fixedly installed on one side of the fixing frame (1). A fixing frame (3) is fixedly installed on one side of the first fixing block (2). A snap-fit hole (4) is opened on the top surface of the fixing frame (3). A connecting pipe (5) is provided inside the fixing frame (3). One end of the connecting pipe (5) is snapped together with the snap-fit hole (4). The outer wall of the connecting pipe (5) has several suction pipes (6). The suction pipes (6) are connected to the connecting pipe (5). The suction pipes (6) are evenly distributed on the outer wall of the connecting pipe (5). A fixing plate (7) is snapped inside the fixing frame (3). A number of suction holes (8) are opened on one side of the fixing plate (7). The number of suction holes (8) are evenly distributed on one side of the fixing plate (7). The number of suction holes (8) are respectively aligned with the number of suction pipes (6).
2. The lower film positioning mechanism of a three-dimensional transparent film packaging machine according to claim 1, characterized by, A sealing ring (9) is fixedly installed inside the connecting pipe (5), and a baffle (10) is fixedly installed on one side of the fixing frame (1). The two sides of the baffle (10) are fixedly installed together with the first fixing block (2).
3. The lower film positioning mechanism of a three-dimensional transparent film packaging machine according to claim 1, characterized by, A second fixing block (11) is fixedly installed on one side of the first fixing block (2). A first rotating groove (12) is opened on one side of the second fixing block (11). A rotating block (13) is arranged inside the first rotating groove (12). Two mounting plates (14) are fixedly installed on the bottom surface of the rotating block (13). A locking hole is opened on one side of the mounting plate (14). A rotating roller (15) is arranged on the bottom surface of the rotating block (13). A first rotating shaft (16) is fixedly installed on both sides of the rotating roller (15). The rotating roller (15) is connected to the two mounting plates (14) by the first rotating shaft (16).
4. The lower film positioning mechanism of a three-dimensional transparent film packaging machine according to claim 3, characterized by, The first rotating groove (12) has a second rotating groove (17) on both sides inside. The rotating block (13) has a second rotating shaft (18) fixedly installed on both sides. The rotating block (13) is engaged inside the first rotating groove (12) through the second rotating groove (17) and the second rotating shaft (18).
5. The lower film positioning mechanism of a three-dimensional transparent film packaging machine according to claim 4, characterized by, A spring (19) is fitted on the outer wall of the second rotating shaft (18), and the spring (19) is located inside the second rotating groove (17).
6. The lower film positioning mechanism of a three-dimensional transparent film packaging machine according to claim 5, wherein The outer wall of the rotating roller (15) is covered with a protective pad (20), which is a rubber structure.