Film winding machine for box stacking machine
The rotating shaft design, which combines springs, moving blocks, and handrails, solves the problem of cumbersome film roll installation, enabling efficient and stable operation of the film wrapping machine, ensuring uniform film wrapping and a long service life for the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-06
AI Technical Summary
The existing stretch wrapping machine is cumbersome and time-consuming to change the film roll, and the bolts are prone to stripping, which affects the stability of the equipment and the continuity of production.
The rotating shaft design, which combines springs, moving blocks, and handrails, facilitates the rapid installation of the film roll; the meshing of the second gear and screw enables accurate positioning and stable movement of the stacked boxes.
It improves the installation efficiency of film rolls, ensures uniform film winding, reduces equipment wear, extends service life, reduces maintenance costs, and enhances equipment safety and packaging quality.
Smart Images
Figure CN223972885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wrapping film technology for palletizing boxes, and more specifically, to a wrapping film machine for palletizing boxes. Background Technology
[0002] A stretch wrapping machine for palletizing cartons is a packaging device specifically designed to wrap plastic film (stretch film) around stacked goods (such as boxes or stacks). This equipment, through mechanical rotation and electrical automation control, quickly wraps individual or grouped goods with stretch film as needed, enabling containerized storage, transportation, and mechanized loading and unloading operations. Existing stretch wrapping machines typically use multiple sets of bolts and nuts to mount the film roll inside the rotating shaft to ensure stability during use; however, this mounting method reveals significant drawbacks in actual operation. When replacing the film roll, operators must slowly unscrew multiple sets of bolts and nuts one by one, a tedious and time-consuming process. More importantly, after prolonged use, the bolts are prone to stripping, which not only increases the difficulty of replacing the film roll but may also affect the normal operation of the equipment and even lead to production interruptions. Therefore, this traditional mounting method urgently needs improvement. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a wrapping film machine for a box palletizer, which has the advantage of installation by wrapping film rolls.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a wrapping film machine for a box palletizer, comprising an operating table, a fixed bracket fixedly mounted on the top of the operating table, a wrapping film assembly fixedly mounted inside the top of the fixed bracket, an mounting frame fixedly mounted on the front of the wrapping film assembly, a rotating shaft movably mounted inside the mounting frame, a moving block inserted into one end of the rotating shaft, a wrapping film roll movably mounted on the outer surface of the moving block, a spring fixedly mounted between the wrapping film roll and the moving block, and a handrail fixedly mounted on the outer surface of the moving block.
[0005] As a preferred technical solution of this utility model, the inside of the operating table is provided with a sliding groove, and a sleeve block is movably installed inside the sliding groove. A screw rod is threaded inside the sleeve block, and both ends of the screw rod pass through the inside of the operating table. A stacking pallet is fixedly installed on the top of the sleeve block.
[0006] A first gear is fixedly installed at one end of the screw, a slide groove is fixedly installed on the right side of the operating table, and a second gear is fixedly installed at the output end of the slide groove, with the second gear meshing with the first gear.
[0007] In a preferred embodiment of this utility model, the film-winding assembly is fixedly installed inside the top of the fixed bracket. The film-winding assembly includes a top motor fixedly installed on the fixed bracket. A first slider is fixedly installed at the output end of the motor. A second slider is fixedly installed at one end of the first slider. A first cylinder is fixedly installed between the second slider and the second fixed frame. A first fixed frame is fixedly installed at the bottom of the second fixed frame. A first slider is movably installed inside the first fixed frame and is fixedly connected to the mounting frame. A second cylinder is fixedly installed between the first slider and the first fixed frame.
[0008] As a preferred embodiment of this utility model, the bottom of the operating table is fixedly equipped with columns around its perimeter, and the bottom of the columns is fixedly equipped with a base.
[0009] As a preferred embodiment of this utility model, the operating table has a fixing groove inside, a fixing block is movably installed inside the fixing groove, and a toolbox is fixedly installed on the back of the fixing block.
[0010] As a preferred embodiment of this utility model, the inner diameter of the fixing groove is equal to the outer diameter of the fixing block, and the interior of the fixing groove has a smooth surface design.
[0011] As a preferred embodiment of this utility model, a support base is fixedly installed on the right side of the operating table, and the support base is U-shaped.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. Compared with traditional film wrapping machines, this utility model facilitates the installation of the film roll inside the mounting frame through the cooperation of springs, moving blocks, handles, and rotating shafts. This significantly reduces installation time and improves operational efficiency. Operators can quickly complete the installation without having to laboriously adjust the angle or position, accelerating the packaging process. It also reduces manual intervention and operational complexity, allowing operators to focus on other critical tasks. Furthermore, this design helps the film wrap evenly around the goods, avoiding uneven tension or loose wrapping, protecting the stability of the goods during transportation, preventing damage, and making the packaging more aesthetically pleasing and neat, enhancing the product image. In terms of maintenance, front mounting reduces wear on the film wrapping components and film, extending the equipment's service life, reducing maintenance costs, improving cost-effectiveness, and making inspection and maintenance more convenient and quick, facilitating inspection and repair by operators.
[0014] 2. Compared with traditional stretch wrapping machines, this new stretch wrapping machine, through the cooperation between the second gear and the screw, facilitates the movement of the palletizing tray to the center of the operating table, ensuring accurate movement of the palletizing tray to the center of the operating table and avoiding uneven packaging or equipment vibration caused by eccentricity. At the same time, the screw drive structure is stable, has a strong load capacity, and is suitable for the smooth movement of heavy-duty palletizing trays. In addition, the screw drive has high efficiency, low energy consumption, and uses wear-resistant materials, resulting in a long maintenance cycle. It can also flexibly adapt to palletizing trays of different sizes and weights, and adjust the position in real time during the packaging process to ensure packaging quality and enhance equipment safety. Attached Figure Description
[0015] Figure 1 This is a three-dimensional view of the front of this utility model.
[0016] Figure 2 This is a side perspective view of the present invention.
[0017] Figure 3 This is a schematic diagram of the pallet stacking structure of this utility model;
[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the screw of this utility model;
[0020] Figure 6 This is a three-dimensional appearance structural diagram of the film-wrapping assembly of this utility model;
[0021] Figure 7 This is a schematic cross-sectional view of the membrane winding assembly of this utility model;
[0022] Figure 8 This is a schematic diagram of the cross-sectional structure of the limiting workpiece of this utility model.
[0023] Figure 9 This is a schematic diagram of the handrail structure of this utility model;
[0024] Figure 10 This is a schematic diagram of the cross-sectional structure of the movable block of this utility model;
[0025] Figure 11 This is an exploded structural diagram of the movable block and limiting shaft of this utility model.
[0026] In the diagram: 1. Operating table; 2. Fixed bracket; 3. Handrail; 4. Motor; 5. Column; 6. Base; 7. First fixed frame; 8. First slider; 9. Stacking pallet; 10. Fixed groove; 11. Fixed block; 12. Toolbox; 13. First gear; 14. Screw; 15. Sleeve block; 16. Slide groove; 17. Support base; 18. Second fixed frame; 19. Second slider; 20. First cylinder; 21. Second cylinder; 22. Mounting frame; 23. Film roll; 24. Spring; 25. Moving block; 26. Rotating shaft; 27. Second gear. Detailed Implementation
[0027] 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.
[0028] like Figures 1 to 11 As shown, this utility model provides a wrapping film machine for a box palletizer, including an operating table 1. A fixed bracket 2 is fixedly installed on the top of the operating table 1. A wrapping film assembly is fixedly installed inside the top of the fixed bracket 2. An installation frame 22 is fixedly installed on the front of the wrapping film assembly. A rotating shaft 26 is movably installed inside the installation frame 22. One end of the rotating shaft 26 is inserted into a moving block 25. A wrapping film roll 23 is movably installed on the outer surface of the moving block 25. A spring 24 is fixedly installed between the wrapping film roll 23 and the moving block 25. A handrail 3 is fixedly installed on the outer surface of the moving block 25.
[0029] The worker needs to install the film roll 23 inside the mounting frame 22. By holding the film roll 23, the worker slowly inserts the movable block 25 at one end of the film roll 23 into the rotating shaft 26. Then, by holding the handle 3 at the other end of the film roll 23, the worker presses the movable block 25 with the handle 3. The movable block 25 compresses the spring 24 inside the film roll 23 until one end of the movable block 25 is flush with the bottom of the rotating shaft 26. Then, the worker releases the handle 3, allowing the compression of the spring 24 by the handle 3 to quickly enter one end of the rotating shaft 26. The rotating shaft 26 then limits and fixes the film roll 23, thus completing the installation of the film roll 23.
[0030] When installing the film roll 23 into the mounting frame 22, hold the film roll 23 and slowly insert the moving block 25 at one end into the rotating shaft 26. Then, hold the handle 3 at the other end of the film roll 23 and press the moving block 25 with the handle 3, causing the moving block 25 to squeeze the spring 24 inside the film roll 23. When one end of the moving block 25 is flush with the bottom of the rotating shaft 26, release the handle 3. At this time, the squeezing force of the handle 3 on the spring 24 causes the spring 24 to quickly enter one end of the rotating shaft 26. At the same time, the rotating shaft 26 limits and fixes the film roll 23, completing the installation of the film roll 23. Compared with traditional film winding machines, the cooperation between the spring 24, the moving block 25, the handle 3, and the rotating shaft 26 makes it easier to install the film roll 23. Installed inside the mounting frame 22, this significantly reduces installation time and improves operational efficiency. Operators can quickly complete the installation without having to painstakingly adjust the angle or position, accelerating the packaging process. It also reduces manual intervention and operational complexity, allowing operators to focus on other critical tasks. Furthermore, this design helps the film wrap evenly around the goods, preventing uneven or loose wrapping, protecting the stability of the goods during transportation, preventing damage, and making the packaging more aesthetically pleasing and neat, enhancing the product image. In terms of maintenance, front mounting reduces wear on the film wrapping assembly and film, extending equipment lifespan, reducing maintenance costs, improving cost-effectiveness, and making inspection and maintenance more convenient and faster for operators.
[0031] The operating table 1 has a sliding groove 16 inside, and a sleeve block 15 is movably installed inside the sliding groove 16. A screw rod 14 is threaded inside the sleeve block 15, and both ends of the screw rod 14 pass through the inside of the operating table 1. A stacking pallet 9 is fixedly installed on the top of the sleeve block 15.
[0032] A first gear 13 is fixedly installed at one end of the screw 14, a slide 16 is fixedly installed on the right side of the operating table 1, a second gear 27 is fixedly installed at the output end of the slide 16, and the second gear 27 meshes with the first gear 13.
[0033] After the staff moves the stack of boxes to the top of the stacking pallet 9, the stack needs to be moved to the middle for wrapping. The slide 16 is opened, which drives the second gear 27 to rotate. The teeth of the sleeve block 15 mesh with the first gear 13, and the first gear 13 drives the screw 14 to rotate inside the sleeve block 15, so that the sleeve block 15 moves slowly inside the slide 16. The sleeve block 15 drives the stacking pallet 9 to move synchronously, and the stacking pallet 9 drives the stacking boxes to move synchronously until the stacking boxes are moved to the middle. The slide 16 then stops rotating, thus completing the process of moving the stacking boxes to the middle.
[0034] After smoothly moving the pallet to the top of the palletizing tray 9, the next crucial operation is to transfer it to the center for wrapping. During this process, the equipment slide 16 is first activated, which then drives the second gear 27 to rotate. Because the second gear 27 and the first gear 13 have a toothed meshing mechanism, the rotation of the sleeve block 15 further drives the first gear 13 to rotate, which in turn causes the screw 14 to rotate inside the second gear 27. This series of actions causes the second gear 27 to move slowly within the slide 16, thereby driving the palletizing tray 9 and the pallet to move synchronously until the pallet accurately reaches the center position. Stop the rotation of the chute 16 to complete the operation. Compared with the stretch wrapping machine, this stretch wrapping machine, through the cooperation between the second gear 27 and the screw 14, facilitates the movement of the palletizing tray 9 to the center of the operating table 1, ensuring that the palletizing tray moves accurately to the center of the operating table 1, avoiding uneven packaging or equipment vibration caused by eccentricity. At the same time, the screw 14 has a stable transmission structure and strong load capacity, making it suitable for the smooth movement of heavy-duty palletizing trays. In addition, the screw 14 has high transmission efficiency, low energy consumption, and uses wear-resistant materials, resulting in a long maintenance cycle. It can also flexibly adapt to palletizing trays of different sizes and weights, and adjust the position in real time during the packaging process to ensure packaging quality and enhance equipment safety.
[0035] The film winding assembly is fixedly installed inside the top of the fixed bracket 2. The film winding assembly includes a top motor 4 fixedly installed on the fixed bracket 2. A first slider 8 is fixedly installed at the output end of the motor 4. A second slider 19 is fixedly installed at one end of the first slider 8. A first cylinder 20 is fixedly installed between the second slider 19 and the second fixed frame 18. A first fixed frame 7 is fixedly installed at the bottom of the second fixed frame 18. The first slider 8 is movably installed inside the first fixed frame 7 and is fixedly connected to the mounting frame 22. A second cylinder 21 is fixedly installed between the first slider 8 and the first fixed frame 7.
[0036] After the staff moves the pallet to the middle, they install the film roll 23 inside the mounting frame 22. Then, they activate the first cylinder 20 in the second fixed frame 18. The first cylinder 20 pushes the second slider 19 in the second fixed frame 18, causing the first fixed frame 7 to adjust the film roll 23 according to the width of the pallet. At the same time, the motor 4 and the second cylinder 21 are activated. The motor 4 drives the second fixed frame 18 and the first fixed frame 7 to rotate. The second cylinder 21 drives the first slider 8, the mounting frame 22, and the film roll 23 to slowly rise in the first fixed frame 7. The film is then wrapped around the pallet by the film roll 23, thus completing the wrapping of the pallet film.
[0037] Among them, the bottom of the control panel 1 is fixedly installed with columns 5 around its perimeter, and the bottom of the columns 5 is fixedly installed with a base 6.
[0038] Since the bottom of the control panel 1 is fixedly equipped with columns 5 around its perimeter, and the bottom of the columns 5 is fixedly equipped with a base 6, the cooperation between the columns 5 and the base 6 facilitates stable support for the control panel 1 and reduces shaking of the control panel 1 during use.
[0039] The operating table 1 has a fixed groove 10 inside, a fixed block 11 is movably installed inside the fixed groove 10, and a toolbox 12 is fixedly installed on the back of the fixed block 11.
[0040] By holding the toolbox 12, the fixing block 11 is slowly placed into the fixing slot 10. The fixing slot 10 limits and fixes the fixing block 11. The toolbox 12 makes it easier for workers to take out and place maintenance tools inside the toolbox 12.
[0041] The inner diameter of the fixing groove 10 is equal to the outer diameter of the fixing block 11, and the interior of the fixing groove 10 has a smooth surface design.
[0042] Because the inside of the fixing groove 10 has a smooth surface design, and the inner diameter of the fixing groove 10 is equal to the outer diameter of the fixing block 11, it is easy for the staff to hold the toolbox 12 and slowly insert the fixing block 11 into the inside of the fixing groove 10, thus ensuring the installation efficiency of the fixing groove 10.
[0043] The right side of the control panel 1 is fixedly equipped with a support base 17, and the support base 17 is U-shaped.
[0044] Because the support base 17 is U-shaped and located on the right side of the operating table 1, it provides stable support for the slide rail 16, reduces the swaying of the slide rail 16 during use, and extends the service life of the slide rail 16.
[0045] Working principle and usage process of this utility model:
[0046] The worker needs to install the film roll 23 inside the mounting frame 22. By holding the film roll 23, the worker slowly inserts the movable block 25 at one end of the film roll 23 into the rotating shaft 26. Then, by holding the handle 3 at the other end of the film roll 23, the worker presses the movable block 25 with the handle 3. The movable block 25 compresses the spring 24 inside the film roll 23 until one end of the movable block 25 is flush with the bottom of the rotating shaft 26. Then, the worker releases the handle 3, allowing the compression of the spring 24 by the handle 3 to quickly enter one end of the rotating shaft 26. The rotating shaft 26 then limits and fixes the film roll 23, thus completing the installation of the film roll 23.
[0047] After the staff moves the stack of boxes to the top of the stacking pallet 9, the stack needs to be moved to the middle for wrapping. The slide 16 is opened, which drives the second gear 27 to rotate. The teeth of the sleeve block 15 mesh with the first gear 13, and the first gear 13 drives the screw 14 to rotate inside the sleeve block 15, so that the sleeve block 15 moves slowly inside the slide 16. The sleeve block 15 drives the stacking pallet 9 to move synchronously, and the stacking pallet 9 drives the stacking boxes to move synchronously until the stacking boxes are moved to the middle. The slide 16 then stops rotating, thus completing the process of moving the stacking boxes to the middle.
[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0049] 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 wrapping film machine for a case palletizer, comprising an operating table (1), characterized in that: The top of the operating platform (1) is fixedly provided with a fixed support (2), the inner top of the fixed support (2) is fixedly provided with a film winding assembly, the front of the film winding assembly is fixedly provided with a mounting frame (22), the inner of the mounting frame (22) is movably provided with a rotating shaft (26), one end of the rotating shaft (26) is inserted into a moving block (25), the outer surface of the moving block (25) is movably provided with a film winding roll (23), the moving block (25) and the film winding roll (23) are fixedly provided with a spring (24), and the outer surface of the moving block (25) is fixedly provided with a handrail (3).
2. A wrapping film machine for a case palletizer according to claim 1, characterized in that: The inner of the operating platform (1) is provided with a sliding groove (16), the inner of the sliding groove (16) is movably provided with a sleeve block (15), the inner of the sleeve block (15) is threadedly provided with a screw rod (14), both ends of the screw rod (14) penetrate into the inner of the operating platform (1), and the top of the sleeve block (15) is fixedly provided with a code box stacking disc (9). One end of the screw rod (14) is fixedly provided with a first gear (13), the right side of the operating platform (1) is fixedly provided with a sliding groove (16), the output end of the sliding groove (16) is fixedly provided with a second gear (27), and the teeth of the second gear (27) and the first gear (13) are engaged.
3. A wrapping film machine for a case palletizer according to claim 1, characterized in that: The film winding assembly is fixedly arranged at the inner top of the fixed support (2), the film winding assembly comprises a top motor (4) fixedly arranged on the fixed support (2), the output end of the motor (4) is fixedly provided with a first sliding block (8), one end of the first sliding block (8) is fixedly provided with a second sliding block (19), the second sliding block (19) and a second fixed frame (18) are fixedly provided with a first air cylinder (20), the bottom of the second fixed frame (18) is fixedly provided with a first fixed frame (7), the inner of the first fixed frame (7) is movably provided with the first sliding block (8), the first sliding block (8) and the mounting frame (22) are fixedly connected, and the first sliding block (8) and the first fixed frame (7) are fixedly provided with a second air cylinder (21).
4. A wrapping film machine for a case palletizer according to claim 1, characterized in that: The bottom of the operating platform (1) is fixedly provided with a stand column (5), and the bottom of the stand column (5) is fixedly provided with a base (6).
5. A wrapping film machine for a case palletizer according to claim 1, characterized in that: The inner of the operating platform (1) is provided with a fixed groove (10), the inner of the fixed groove (10) is movably provided with a fixed block (11), and the back of the fixed block (11) is fixedly provided with a tool box (12).
6. A wrapping film machine for a case palletizer according to claim 5, characterized in that: The inner diameter of the fixed groove (10) is equal to the outer diameter of the fixed block (11), and the inner of the fixed groove (10) is designed to have a smooth surface.
7. A wrapping film machine for a case palletizer according to claim 1, characterized in that: The right side of the operating platform (1) is fixedly provided with a support seat (17), and the support seat (17) has a U-shaped shape.