Film roll transport

Abstract

The application relates to the field of thin film roll transportation, and discloses a film roll transportation frame, which comprises a support provided with a plurality of film roll loading intervals, film roll carriers placed in the film roll loading intervals, and limiting structures arranged on the support and used for limiting the front and back movement of the film roll carriers on the support, the film roll carriers have multiple specifications, and at least one film roll loading clamping position is arranged on each film roll carrier. The film roll transportation frame provided by the application adopts a general bearing mode of one frame and multiple carriers, only one set of support system needs to be configured, the bearing requirements of the multiple-specification film roll carriers can be met, the film roll is fixed through the loading clamping position of the film roll carrier, the film roll carrier is limited through the limiting structure on the support, meanwhile, the support is closely combined with the side wall of a container, a multilayer fixing system is formed, the film roll can be effectively prevented from shaking and colliding during transportation, the film roll breakage risk is reduced, and the film roll loading capacity of a unit container is obviously improved.

Description

Technical Field

[0001] This application relates to the field of film roll transportation, and in particular to a film roll transport rack. Background Technology

[0002] In the production process of film materials, to facilitate subsequent storage and transportation, they are usually processed into cylindrical film rolls (i.e., film rolls) using specialized rolling equipment. These film rolls need to be packed into specialized packaging boxes before being moved into containers for long-distance transport. Therefore, the rationality and applicability of the packaging boxes directly affect transportation efficiency and cost control. Currently, commonly used packaging boxes in the industry are mainly made of wood, paper, and plastic. These various types of packaging boxes differ significantly in terms of economy, environmental friendliness, and space utilization, making it difficult to simultaneously meet the diverse needs of actual transportation scenarios.

[0003] Due to structural design and material characteristics, packaging boxes made of wood, paper, and plastic mostly need to be custom-made according to the specific specifications (such as diameter, shaft length, and weight) of the film rolls to be loaded. This means that each specification of film roll must be equipped with a corresponding size packaging box, making it impossible to use one box for multiple purposes. In actual production, companies often need to stock packaging boxes of various specifications, which not only increases upfront procurement costs and inventory management difficulties, but may also lead to the waste of existing packaging boxes due to adjustments in film roll specifications.

[0004] Furthermore, when transporting film rolls in containers, the standard practice is to stack the boxes 2-3 layers high and place them side-by-side in two rows wide to maximize the use of the container's internal space. However, since wooden, paper, and plastic boxes are often custom-made, their dimensions rarely perfectly match the standard internal dimensions of the container, often resulting in unusable gaps in corners, tops, or sides. These accumulated gaps lead to significant waste of internal container space, reducing the amount of film rolls loaded per unit container and indirectly increasing the number of shipments and overall transportation costs. For example, when the film roll length is slightly shorter than the designed box length, lateral gaps will appear inside the box. Forcing loading may cause the film rolls to shake and break during transport; abandoning loading results in idle space and economic losses for the company.

[0005] Wooden and paper packaging boxes are easily damaged or deformed by humidity and external impacts during use, and usually can only be used once or a few times before needing to be scrapped, making long-term recycling impossible. Although plastic packaging boxes have a certain degree of impact and corrosion resistance and can be used for short periods, they are prone to aging and embrittlement after long-term use, resulting in a limited lifespan.

[0006] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0007] In view of the shortcomings of the prior art, the purpose of this application is to provide a membrane roll transport rack that can simultaneously accommodate membrane rolls of different specifications, maximize the use of container internal space, be used repeatedly for a long time, and have high transport stability.

[0008] To achieve the above objectives, this application adopts the following technical solution: A membrane roll transport frame includes a support with multiple membrane roll loading sections, a membrane roll holder placed in the membrane roll loading sections, and a limiting structure disposed on the support and used to restrict the membrane roll holder from moving back and forth on the support. The membrane roll holder has a variety of specifications, and each specification of the membrane roll holder is used to load membrane rolls with a specific axial length range. Each membrane roll holder is provided with at least one membrane roll loading slot.

[0009] As a further improvement to the above technical solution, the membrane roll holder is provided with multiple membrane roll loading slots arranged at intervals along the left and right sides. The transverse length of membrane roll holders of different specifications is the same, but the width is different.

[0010] As a further improvement to the above technical solution, the support includes two side frames and a crossbeam assembly connecting the two side frames. Each side frame is provided with a support beam and a limiting side beam that are the same as the number of layers in the film roll loading section and extend along the front and back. The film roll support is mounted on the support beam and is restricted to move left and right by the two limiting side beams.

[0011] As a further improvement to the above technical solution, the limiting structure includes a front slot group disposed on one end of the support beam and a rear slot group disposed on the other end of the support beam. The front slot group includes a plurality of front slot pieces arranged at intervals along the length direction of the support beam, and the rear slot group includes a plurality of rear slot pieces arranged at intervals along the length direction of the support beam. The membrane roll bracket is inserted into the corresponding front and rear slot pieces.

[0012] As a further improvement to the above technical solution, both the front groove and the rear groove are U-shaped structures with an outward-facing flange formed on the top for the guide film roll holder to be inserted.

[0013] As a further improvement to the above technical solution, the limiting structure includes a aligning block disposed at one end of the support beam and an adjusting block disposed at the other end of the support beam. The adjusting block is threaded with a limiting screw for pushing the film roll holder tight to the aligning block.

[0014] As a further improvement to the above technical solution, the crossbeam assembly includes an outer support rod and an inner groove member disposed on the inner side of the two side supports and bearing the outer support rod.

[0015] As a further improvement to the above technical solution, the crossbeam assembly includes a first outer push rod, a second outer push rod, and an adjusting screw connecting the first outer push rod and the second outer push rod. One end of the first outer push rod is provided with a first threaded hole, and the end of the second outer push rod facing the first outer push rod is provided with a second threaded hole. The internal threads of the first threaded hole and the second threaded hole are opposite. The inner surfaces of the two side supports are respectively provided with inner grooves for supporting the first outer push rod and the second outer push rod.

[0016] As a further improvement to the above technical solution, the membrane roll support includes a transversely extending front support beam and a rear support beam, and a connecting rod for connecting the front support beam and the rear support beam. The membrane roll loading slot includes two supports that are symmetrically arranged on the front support beam and the rear support beam, respectively. Each of the two supports has a loading slot for the mandrel of the membrane roll to be inserted.

[0017] As a further improvement to the above technical solution, the support includes two side supports and a U-shaped support strip erected between the two side supports, with the bottom of the U-shaped support strip pressing against the front or rear support beam.

[0018] As a further improvement to the above technical solution, each of the two supports is provided with a limiting seat on its outer side to restrict the forward and backward movement of the mandrel of the film roll, and the top of the limiting seat is provided with a guiding slope to guide the mandrel of the film roll into the loading slot.

[0019] As a further improvement to the above technical solution, the back sides of the two supports are rotatably connected to baffles that can be inserted between the supports and the limiting seats.

[0020] As a further improvement to the above technical solution, the rear end face of the side support is provided with a connecting pin, and the front end face is provided with a connecting hole.

[0021] Beneficial effects: Compared with the prior art, the membrane roll transport rack provided in this application adopts a universal load-bearing mode of one rack for multiple trays. There is no need to design separate supports for different specifications of membrane roll trays. Only one support system is needed to meet the load-bearing requirements of multiple specifications of membrane roll trays, which greatly reduces the number of supports to be purchased and the cost of equipment investment, while reducing the difficulty of storing and maintaining multiple sets of supports.

[0022] Furthermore, the membrane rolls are secured by the membrane roll loading and clamping mechanism of the membrane roll bracket, which in turn is limited by the limiting structure on the support frame. At the same time, the support frame fits tightly against the side wall of the container, forming a multi-layer fixing system, which can effectively prevent the membrane rolls from shaking or colliding during transportation and reduce the risk of membrane roll damage.

[0023] In addition, by utilizing vertical space through the multi-layered structure of the support frame and eliminating lateral and longitudinal gaps through the seamless fit between the support frame and the container, as well as between the support frames themselves, the membrane roll loading capacity per unit container is significantly increased, the number of transport trips is reduced, and the overall transportation cost is indirectly reduced. Attached Figure Description

[0024] Figure 1 This is a perspective view of the membrane roll transport rack provided in this application, with the connecting holes shown in perspective.

[0025] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0026] Figure 3 This is a structural diagram of the two side supports in the bracket.

[0027] Figure 4 This is a schematic diagram showing the installation of two side supports from the bracket into the container.

[0028] Figure 5 This diagram illustrates the installation of the support frame by mounting the crossbeam assembly onto the two side uprights.

[0029] Figure 6 This is a schematic diagram of the structure of a single membrane roll support.

[0030] Figure 7 A schematic diagram showing that all membrane roll loading slots of a single membrane roll holder are equipped with membrane rolls.

[0031] Figure 8 A schematic diagram showing the membrane roll loading area at the bottom of the support frame, where the membrane roll support is placed.

[0032] Figure 9 This diagram illustrates that all membrane roll loading sections of a single support are equipped with membrane roll holders and membrane rolls, with each membrane roll holder having a different specification.

[0033] Figure 10 A diagram illustrating the loading of a container with film roll transport racks and film rolls.

[0034] Key component symbols: 1-Support, 10-Membrane roll loading area, 11-Side support frame, 12-Crossbeam assembly, 121-First outer push rod, 122-Second outer push rod, 123-Adjusting screw, 124-First guide square tube, 125-Second guide square tube, 126-Sleeve, 127-Tightening hole, 13-Support beam, 14-Limiting side beam, 15-Inner groove, 16-Connecting pin, 17-Connecting socket, 2-Membrane roll support, 21-Front support 22-Rear support beam, 23-Connecting rod, 24-Membrane roll loading slot, 241-Support, 242-Loading slot, 2411-Side support, 2412-U-shaped support strip, 2413-Introduction ramp, 25-Limit seat, 251-Guiding ramp, 26-Baffle, 27-Insertion ring, 41-Front slot assembly, 411-Front slot piece, 42-Rear slot assembly, 421-Rear slot piece, 43-Outward flange, 5-Membrane roll, 51-Mandrel, 6-Container. Detailed Implementation

[0035] This application provides a membrane roll transport rack. To make the purpose, technical solution, and effects of this application clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0036] In the description of this application, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this application. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0037] When using container shipping, existing film rolls require customized packaging boxes based on their specifications, leading to increased procurement and inventory costs as companies need to stock multiple sizes of boxes. Customized boxes are difficult to match with standard container dimensions, resulting in gaps at corners and tops, wasting space, and are also prone to damage during transport. Furthermore, these boxes are not easily reusable in the long term. Therefore, this application provides a film roll transport rack to assist in loading film rolls into containers.

[0038] In this article, the "left and right" direction and the horizontal direction refer to the width direction of container 6, the "front and back" direction refers to the length direction of container 6, the "front" direction refers to the direction from the inside of container 6 toward the closed end of container 6, the "back" direction refers to the direction from the inside of container 6 toward the end of container door 61, and the vertical direction refers to the height direction of container 6.

[0039] Please see Figures 1 to 7 As shown, this application provides a film roll transport rack, including a support 1 with multiple film roll loading sections 10, a film roll holder 2 placed in the film roll loading section 10, and a limiting structure disposed on the support 1 and used to restrict the film roll holder 2 from moving back and forth on the support 1. The film roll holder 2 has a variety of specifications, and each specification of the film roll holder 2 is used to load film rolls 5 with a specific axial length range. Each film roll holder 2 is provided with at least one film roll loading slot 24.

[0040] First, install one bracket 1 inside the front of container 6. During installation, ensure that the left and right sides of bracket 1 are tightly fitted against the inner wall of container 6 (see...). Figure 4 and Figure 5 As shown, the lateral restraint of the support 1 by the side wall of the container 6 prevents the support 1 from swaying left and right during subsequent loading and transportation, thus forming a stable foundation for the subsequent loading of the membrane roll 5.

[0041] Based on the actual shaft length of the film roll 5 to be transported, select the corresponding specification of film roll bracket 2. Since each specification of film roll bracket 2 is pre-designed to adapt to film rolls 5 within a specific shaft length range, the film roll 5 can be directly and stably placed on the film roll loading slot 24 of the film roll bracket 2. The slot structure achieves the initial fixation of the film roll 5 on the film roll bracket 2, preventing the film roll 5 from sliding on the film roll bracket 2.

[0042] See Figure 6 and Figure 7 As shown, after all the film rolls 5 are placed in the film roll loading slots 24 of the film roll carrier 2, the entire film roll carrier 2 carrying the film rolls 5 is moved to the film roll loading area 10 of the support 1 using a forklift or other handling equipment. Loading must strictly follow the bottom-up order, that is, first fill the lowest layer of the support 1, the film roll loading area 10 (see...) Figure 8 As shown in the diagram, the upper layer of membrane rolls is then loaded sequentially into the upper loading section 10 to avoid interference between the lower loading operation and the upper section. Simultaneously, the multi-layer structure of the support 1 enables three-dimensional layered placement of the membrane rolls 5, fully utilizing the vertical space of the support 1. The limiting structure on the support 1 restricts the forward and backward movement of the membrane roll support 2, preventing it from shifting forward and backward during transportation due to bumps, sudden braking, etc., and avoiding collisions between the membrane roll support 2 and the membrane rolls 5, or adjacent membrane roll support 2.

[0043] After all membrane roll loading sections 10 of the first support 1 are filled with membrane roll holders 2 (see...) Figure 9 As shown), following the same initial positioning method, place the next support 1 into container 6, ensuring that the rear side of this support 1 is tightly fitted against the front side of the previously filled support 1, eliminating gaps between the supports 1; then repeat the steps of feeding the film roll 5 to the film roll bracket 2 and layering the film roll bracket 2 until the entire interior space of container 6 is completely filled with the supports 1 and the film roll bracket 2 carrying the film roll 5. Finally, close the double doors of container 6 to complete the loading (see...). Figure 10 As shown in the figure, it enters the transportation stage.

[0044] In existing technologies, different specifications of film roll 5 packaging boxes require different auxiliary support structures (such as customized pallets and fixing frames). If multiple specifications of film roll 5 are transported, multiple sets of support equipment adapted to different packaging boxes need to be purchased, increasing equipment investment and management costs. The film roll loading section 10 of the film roll transport rack provided in this application adopts a standardized design. Its internal support structure is compatible with multiple specifications of film roll trays 2. Regardless of the front and rear width of the film roll tray 2 changing with the specifications, as long as the film roll tray 2 meets the basic size standard of the film roll loading section 10, it can be smoothly placed in and fixed by the limiting structure. This universal support mode of one rack for multiple trays does not require separate design of bracket 1 for different specifications of film roll trays 2. Only one bracket 1 system is needed to meet the support requirements of multiple specifications of film roll trays 2, which greatly reduces the purchase quantity of bracket 1 and equipment investment costs, while reducing the storage and maintenance difficulty of multiple sets of bracket 1.

[0045] Furthermore, the membrane roll 5 is fixed by the membrane roll loading slot 24 of the membrane roll bracket 2, and the membrane roll bracket 2 is limited by the membrane roll loading section 10 of the bracket 1. At the same time, the bracket 1 is closely attached to the side wall of the container 6 to form a multi-layer fixing system, which can effectively prevent the membrane roll 5 from shaking or colliding during transportation and reduce the risk of damage to the membrane roll 5.

[0046] In addition, the left and right sides of the support frame 1 are closely attached to the side walls of the container 6, and the front and rear adjacent supports 1 are tightly fitted together. The membrane rolls 5 are loaded in layers in the support frame 1 through the brackets. The entire loading system can be fully adapted to the internal space of the container 6. It utilizes the vertical space through the multi-layer structure of the support frame 1, and eliminates the lateral and front-to-back gaps through the seamless fit between the support frame 1 and the container 6, and between the support frames 1 and the support frame 1. This significantly increases the amount of membrane rolls 5 loaded per unit container 6, reduces the number of transportation trips, and indirectly reduces the overall transportation cost.

[0047] Both the support frame 1 and the membrane roll bracket 2 are structurally stable load-bearing components (which can be made of durable materials such as metal and high-strength plastic). They can be disassembled and recycled after transportation, and can be reused for subsequent transportation after simple inspection and maintenance. They do not need to be replaced frequently, which reduces the consumption of forest resources and environmental pollution caused by waste packaging.

[0048] In existing technologies, a single packaging box can typically only hold 1-2 film rolls 5, and the lateral arrangement of the film rolls 5 within the packaging box lacks precise planning, easily leading to wasted lateral space due to excessive spacing between the film rolls 5. To address this, the film roll bracket 2 is equipped with multiple film roll loading slots 24 spaced laterally. On one hand, this allows for centralized loading of multiple rolls on a single bracket. For example, one bracket can simultaneously hold 3-5 film rolls 5 (the specific number is adapted to the diameter of the film rolls 5 and the lateral length of the bracket). Compared to the single-roll loading mode per packaging box, this significantly increases the film roll 5 load capacity of a single bracket, reduces the number of brackets used and the number of handling operations, and further increases the overall film roll 5 loading capacity of the bracket 1. On the other hand, the standardized design of the multiple film roll loading slots 24 spaced laterally ensures that the film rolls 5 are evenly distributed on the bracket, preventing damage caused by excessive lateral stacking of the film rolls 5. Simultaneously, it fully utilizes the lateral space of the bracket, eliminating lateral gaps caused by disordered arrangement of the film rolls 5, further optimizing the film roll 5 loading density per unit lateral space.

[0049] It is understandable that the transverse lengths of the membrane roll brackets 2 of different specifications are the same, but the widths are different. That is, the left and right lengths of the membrane roll brackets 2 of different specifications are consistent. On the one hand, this ensures that all specifications of membrane roll brackets 2 can be seamlessly adapted to the membrane roll loading section 10 of the support 1. No matter how the axial length of the membrane roll 5 adapted to the membrane roll bracket 2 changes, its left and right lengths always match the transverse dimensions of the membrane roll loading section 10, without the need to adjust the transverse load-bearing structure of the support 1, thus reducing the difficulty of handling and adaptation. The front and rear widths of the membrane roll brackets 2 of different specifications vary with the axial length of the adapted membrane roll 5. The membrane roll bracket 2 adapted to the long axis of the membrane roll 5 adopts a wider front and rear dimension, while the membrane roll bracket 2 adapted to the short axis of the membrane roll 5 adopts a narrower front and rear dimension, ensuring stable support at the axial end of the membrane roll 5.

[0050] Specifically, the support frame 1 includes two side uprights 11 and a crossbeam assembly 12 connecting the two side uprights 11. The two side uprights 11 serve as the longitudinal load-bearing bodies on the left and right sides of the support frame 1, respectively, and can directly transfer the weight of the membrane roll 5 and the membrane roll bracket 2 to the bottom of the container 6, avoiding localized stress concentration. Each side upright 11 is provided with a support beam 13 and a limiting side beam 14 that have the same number of layers as the membrane roll loading section 10 and extend along the front and back.

[0051] Since the limiting side beam 14 is located further outward from the side support 11, the support 1 is directly and tightly attached to the inner wall of the container 6 through the outer side of the limiting side beam 14, and the rigid support of the container 6 restricts the displacement of the support 1 in the width direction. When encountering centrifugal force during turning or lateral bumps during transportation, the limiting side beam can transfer the impact force to the side wall of the container 6, preventing the support 1 from swaying left and right as a whole, and providing a stable bearing foundation for the membrane roll bracket. A gap is reserved between the limiting side beam 14 and the membrane roll bracket 2. Although the limiting side beam 14 is not rigidly attached to the membrane roll bracket 2, even if there is a misalignment of the membrane roll bracket 2 when it is placed, it can still be smoothly lowered onto the support beam 13. It should be noted that this reserved gap is controlled within a reasonable range (less than the safe displacement required for the stability of the membrane roll), which can form a flexible constraint on the membrane roll bracket 2 during transportation bumps. When the membrane roll bracket 2 shifts slightly left and right due to vibration, it will be blocked by the limiting side beam 14 to prevent the membrane roll from colliding due to excessive shift.

[0052] The crossbeam assembly 12 is positioned between the two side uprights 11. By applying a lateral outward jacking force, the limiting side beam 14 is tightly fitted to the inner wall of the container 6, forming a completely fixed frame structure. The load-bearing strength of this frame structure is much higher than that of a single frame. Even when loading a heavy membrane roll 5, it can maintain the overall stability of the support 1, preventing the membrane roll 5 from tipping over or being damaged due to deformation of the support 1, thus adapting to the transportation needs of heavier membrane rolls 5.

[0053] In fact, to avoid obstructing the forklift's operating path, this embodiment provides three crossbeam assemblies 12. The first crossbeam assembly 12 connects the front top corners of the two side uprights 11, the second crossbeam assembly 12 connects the front bottom corners of the two side uprights 11, and the third crossbeam assembly 12 connects the rear bottom corners of the two side uprights 11. This differentiated design, which uses crossbeam assemblies 12 at the rear bottom corners but not at the rear top corners, achieves a balance between strength and convenience. The crossbeam assembly 12 at the front bottom corners of the side uprights 11 can provide rigid support for the front bottom of the side uprights 11, preventing the front of the side uprights 11 from tilting downwards due to the lack of upper crossbeam constraint, thus ensuring the load-bearing strength of the front of the support 1. At the same time, the absence of crossbeam assemblies 12 at the rear top corners of the side uprights 11 provides an open operating space for the forklift to extend from the front into the loading area 10 of each layer of film rolls. The crossbeam assemblies 12 at the front bottom corner, front top corner and rear bottom corner of the side support 11 form a stable triangular structure, so that the support 1 can remain stable even when all four layers are loaded with heavy film rolls 5, completely eliminating the risk of the support 1 overturning during transportation.

[0054] In this embodiment, the scheme features a four-layer membrane roll loading area 10, combined with the design of independently supporting beams 13 on each layer of the support frame 1 (each layer of support beam 13 independently supports the corresponding membrane roll bracket 2). This allows for four-layer three-dimensional loading of membrane rolls 5 within the longitudinal height of the container 6. Compared to the existing 2-3 layer stacking mode, this scheme further taps into the loading potential of vertical space while fully utilizing the lateral space. It achieves saturated utilization of vertical space while avoiding interlayer compression of the membrane rolls, significantly increasing the total loading capacity of membrane rolls 5 per unit container 6 and reducing the transportation cost per unit membrane roll 5.

[0055] With a four-layer membrane roll loading section 10, each side support 11 is equipped with four sets of support beams 13 and limiting side beams 14, and the load-bearing structures between layers are independent of each other. This layered independent load-bearing design can distribute the weight of each layer of membrane roll 5 to the support beams 13 of the corresponding layer, avoid the weight of the upper layer from causing additional load on the lower support beams 13, greatly reduce the risk of bending and damage to the support beams 13, and extend the service life of the support 1.

[0056] In a first embodiment, the limiting structure includes a front slot group 41 disposed at one end of the support beam 13 and a rear slot group 42 disposed at the other end of the support beam 13. The front slot group 41 includes a plurality of front slot pieces 411 spaced apart along the length of the support beam 13 (e.g., one front slot piece 411 is disposed every 5-10 cm), and the rear slot group 42 includes a plurality of rear slot pieces 421 spaced apart along the length of the support beam 13 (e.g., one rear slot piece 421 is disposed every 5-10 cm). In this embodiment, the membrane roll holder 2 is provided with four specifications. Correspondingly, each side support 11 is provided with four front slot pieces 411 and four rear slot pieces 421, so that the membrane roll loading section 10 can accommodate four specifications of membrane roll holder 2.

[0057] The front and rear ends of the membrane roll bracket 2 are respectively inserted into the corresponding front groove 411 and rear groove 421. The inner walls of the front groove 411 and rear groove 421 have a larger contact area with the support beam of the membrane roll bracket 2, which can evenly transmit the load-bearing pressure of the membrane roll bracket 2 to both ends of the support beam 13, avoiding warping or displacement of the membrane roll bracket 2 due to localized stress concentration. Even if the membrane roll bracket 2 carries a heavy membrane roll 5, it can maintain stability through the rigid locking of the front and rear grooves, preventing the membrane roll 5 from tilting or colliding due to localized stress on the membrane roll bracket 2, and greatly improving the safety of single-layer loading of heavy membrane roll 5.

[0058] After the forklift moves the film roll bracket 2 to the designated position on the support beam 13, it is only necessary to lower the film roll bracket 2. The front support beam 21 and the rear support beam 22 of the film roll bracket 2 are aligned and locked into the corresponding front groove 411 and rear groove 421, respectively, to complete the fixation. When grabbing, after the forklift forks extend into the bottom of the film roll bracket 2, they are slightly lifted upward and pulled backward to make the bracket disengage from the limiting structure. The operation is equally convenient, greatly improving the overall loading and unloading efficiency.

[0059] In this embodiment, each layer of the support 1 loads only one film roll bracket 2 in each film roll loading section 10; however, in other embodiments, each layer of the support 1 can load two or more film roll brackets 2 in parallel on the same layer.

[0060] In a preferred embodiment, both the front slot 411 and the rear slot 421 are U-shaped structures with an outwardly turned flange 43 at the top for guiding the membrane roll bracket 2 into place. The inclination angle of the outwardly turned flange 43 is (e.g., 15°-30°). When a forklift pushes the bracket close to the slot, even if there is a positional deviation between the membrane roll 5 support beam and the slot opening, the support beam edge of the membrane roll bracket 2 will slide along the inclined surface of the outwardly turned flange 43, automatically correcting its position and accurately sliding into the groove of the U-shaped slot, significantly improving loading efficiency, especially suitable for batch rapid loading scenarios. The groove width of the U-shaped slot perfectly matches the support beam width of the membrane roll bracket 2. After the outwardly turned flange 43 guides the support beam to be fully embedded in the groove, the two side walls of the slot can form a wrapping lateral constraint on the support beam, preventing the support beam from shifting to the left or right during transportation. Meanwhile, the support beam is precisely engaged with the bottom of the front groove 411 and the rear groove 421 through the outward flange 43, and is tightly fitted with the bottom of the front groove 411 and the rear groove 421. This can evenly transfer the weight of the membrane roll 5 to the support beam 13, and prevent local stress concentration caused by the offset of the support beam. Even if the bracket carries multiple heavy membrane rolls 5, it can remain stable and avoid the membrane roll 5 from tipping over due to the shaking of the support beam.

[0061] The crossbeam assembly 12 forms a lateral external force constraint on the two side uprights 11, so that the limiting side beams 14 on the side uprights 11 can be tightly attached to the inner wall of the container 6, preventing the side uprights 11 from tilting or deforming inward due to force during the load-bearing process.

[0062] In the first embodiment, the crossbeam assembly 12 includes an outer support rod and an inner groove 15 disposed on the inner surfaces of the two side supports 11 and supporting the outer support rod. When assembling the bracket 1 in the container 6, the position of the bracket 1 is first adjusted so that the outer end face of the limiting side beam 14 is initially close to the inner wall of the container 6. Then, both ends of the outer support rod are respectively placed into the inner groove 15 on the inner surfaces of the two side supports 11. The length of the outer support rod is slightly less than or equal to the initial distance between the inner surfaces of the two side supports 11. If resistance is encountered during placement, a hammer can be used to insert the auxiliary outer support rod into the inner groove 15 and place it between the two side supports 11. After placement, the outer support rod can remain horizontal under the support of the inner groove. Loading membrane roll 5 (especially when four layers of fully loaded membrane roll 5 are used) will cause the side support frame 11 to generate an inward tilting moment. If the crossbeam without a clamping structure relies solely on its own rigidity to resist this, it is prone to bending and deformation. Therefore, the continuous lateral outward force provided by the external support rod can actively counteract the inward tilting moment of the side support frame 11. When the side support frame 11 has an inward tilting tendency, the clamping force of the external support rod directly forms a reverse support.

[0063] In the second embodiment, see Figure 1 and Figure 2 As shown, the crossbeam assembly 12 includes a first outer push rod 121, a second outer push rod 122, and an adjusting screw 123 connecting the first outer push rod 121 and the second outer push rod 122. One end of the first outer push rod 121 is provided with a first threaded hole, and the end of the second outer push rod 122 facing the first outer push rod 121 is provided with a second threaded hole. The internal threads of the first threaded hole and the second threaded hole are opposite. The inner surfaces of the two side supports 11 are respectively provided with inner grooves 15 for supporting the first outer push rod 121 and the second outer push rod 122.

[0064] When assembling the bracket 1 in container 6, first adjust the position of the bracket 1 so that the outer end face of the limiting side beam 14 is initially close to the inner wall of container 6, and the two side uprights 11 remain parallel; then, put the end of the first outer push rod 121 away from the adjusting screw 123 into the inner groove 15 of one side upright 11, and put the end of the second outer push rod 122 away from the adjusting screw 123 into the inner groove 15 of the other side upright 11, ensuring that the first outer push rod 121 and the second outer push rod 122 are both placed horizontally along the inner groove 15. At this time, the adjusting screw 123 is located between the two side uprights 11, and the entire crossbeam assembly 12 is in a state of waiting to be adjusted. The first outer push rod 121 and the second outer push rod 122 are controlled to retract or expand by turning the adjusting screw 123 clockwise or counterclockwise. Because the first and second threaded holes are opposite, when the adjusting screw 123 rotates, it will simultaneously drive the first outer push rod 121 and the second outer push rod 122 to move in opposite directions (for example, when rotating clockwise, the first outer push rod 121 extends outward, and at the same time, the second outer push rod 122 extends outward synchronously), so that the overall length of the crossbeam assembly 12 gradually increases. The adjusting screw 123 is continuously rotated until the ends of the first outer push rod 121 and the second outer push rod 122 press against the inner sides of the two side uprights 11 respectively, thereby pushing the two side uprights 11 to move outward, and finally making the outer end face of the limiting side beam 14 completely and tightly fit with the inner wall of the container 6.

[0065] Once the limiting side beam 14 is in contact with the inner wall of the container 6, the adjusting screw 123 stops rotating. The reverse thread structure utilizes the self-locking characteristic of the thread to prevent the adjusting screw 123 from rotating on its own during transportation bumps, ensuring that the crossbeam assembly 12 remains in a stable and tight state. The three sets of crossbeam assemblies 12 respectively form a uniform lateral support force on the upper front end, lower front end, and lower rear end of the side frame 11, preventing the side frame 11 from tilting or deforming inward.

[0066] With this configuration, the clamping stroke of the crossbeam assembly 12 is controllable and adjustable, precisely avoiding gap residue caused by insufficient clamping or deformation of the side support 11 caused by excessive clamping, ensuring that the side support 11 is always tightly attached to the inner wall of the container 6 with appropriate force, and eliminating the risk of shaking caused by gaps during transportation.

[0067] Preferably, see Figure 2 As shown, a sleeve 126 is fixedly connected to the adjusting screw 123. Multiple screw holes 127 are opened around the peripheral wall of the sleeve 126. The operator can turn the sleeve 126 and the adjusting screw 123 to rotate synchronously by cooperating with the corresponding screw holes 127 using a hook wrench.

[0068] Further details can be found here. Figure 2 As shown, the first outer push rod 121 and the second outer push rod 122 have square cross-sections. The first guide square tube 124 is fitted onto the first outer push rod 121 and fixed to form a whole. The second guide square tube 125 is fitted onto the second outer push rod 122 and fixed to form a whole. The first guide square tube 124 and the second guide square tube 125 are embedded in the inner groove 15. The inner groove 15 limits the guide square tube and the outer fixed rod, restricting the rotation of the outer push rod during the tightening process. This ensures that the first outer push rod 121 and the second outer push rod 122 can only move in a straight line in the lateral direction. The tightening force is transmitted to the side frame 11 in the lateral direction, avoiding the tilting of the side frame 11 due to rotational offset. This ensures that the side frame 11 moves smoothly and that the limiting side beam 14 on the side frame 11 is tightly attached to the inner wall of the container 6.

[0069] For details, please refer to Figure 6 and Figure 7 The membrane roll support 2 includes a transversely extending front support beam 21 and a rear support beam 22, and a connecting rod 23 for connecting the front support beam 21 and the rear support beam 22. The membrane roll loading slot 24 includes two supports 241 symmetrically arranged on the front support beam 21 and the rear support beam 22, respectively. Each of the two supports 241 has a loading slot 242 for the mandrel 51 of the membrane roll 5 to be inserted. The transversely extending front support beam 21 and rear support beam 22 form a double beam support, while the connecting rod 23 enhances the longitudinal connection strength between the front support beam 21 and the rear support beam 22. The double beam structure can distribute the weight of the membrane roll 5, avoid localized stress concentration on a single beam, and prevent the membrane roll support 2 from misaligning due to vibration during handling or transportation. The membrane roll support 2 has good bending strength. Even when carrying multiple membrane rolls 5 simultaneously, the front support beam 21 and the rear support beam 22 do not deform significantly, providing a stable bearing foundation for the membrane roll 5 and eliminating the risk of the membrane roll 5 tipping over due to deformation of the membrane roll support 2.

[0070] See Figure 7 As shown, during loading, the front and rear ends of the mandrel 51 of the membrane roll 5 can be respectively inserted into the loading slots 242 of the support 241. The radial constraint of the mandrel 51 by the inner wall of the slot achieves axial positioning of the membrane roll 5 on the membrane roll bracket 2. At the same time, the symmetrical layout of the supports 241 ensures that the mandrel 51 is subjected to uniform force, avoiding tilting of the mandrel 51 due to unilateral force, and completely eliminating the problem of axial movement of the membrane roll 5 during transportation. It is especially suitable for membrane rolls with longer mandrels 51, ensuring that the membrane roll 5 is always in the center position of the membrane roll bracket 2.

[0071] Some high-precision films (such as optical films and electronic-grade films) are susceptible to damage from friction and compression. If the outer circle of the film roll 5 is directly supported by the film roll bracket 2, the surface may be scratched due to the excessive contact area. By using the loading slot 242, which only contacts the mandrel 51 of the film roll 5, the outer circle of the film roll 5 is completely suspended and does not contact any part of the film roll bracket 2. This avoids frictional damage between the outer circle of the film roll 5 and the film roll bracket 2, and also reduces the risk of wrinkles caused by pressure on the outer circle of the film roll 5. At the same time, the inner wall of the loading slot 242 can be wrapped with rubber or nylon material to further buffer the hard contact between the mandrel 51 and the loading slot 242, preventing the edge of the mandrel 51 from scratching the end face of the film roll 5. This meets the high-quality transportation requirements of surface-sensitive films and reduces the transportation loss rate of the film roll 5.

[0072] In fact, see Figure 9 As shown, each membrane roll holder 2 can be equipped with 3-5 independent membrane roll loading slots 24 as needed. For example, it can support five small-diameter membrane rolls 5 loaded on a small-sized membrane roll holder 2, or it can support three large-diameter membrane rolls 5 loaded on a large-sized membrane roll holder 2, which greatly improves loading flexibility.

[0073] For details, please refer to Figure 6 and Figure 7 The support 241 comprises two side supports 2411 and a U-shaped support strip 2412 welded between the two side supports 2411 to form an integrated structure, allowing pressure to be directly transmitted to the entire support 241 when it is under stress. The bottom of the U-shaped support strip 2412 presses against the front support beam 21 or the rear support beam 22. The pressure applied to the U-shaped support strip 2412 by the mandrel 51 can be directly transmitted to the front support beam 21 or the rear support beam 22 through the bottom of the U-shaped support strip 2412. The side supports 2411 only need to bear the lateral limiting force of the mandrel 51, without having to bear additional vertical weight, which greatly reduces the stress on the side supports 2411 and extends the service life of the support 241. The loading slot 242 of the U-shaped support strip 2412 adopts an arc-shaped opening design, and its inner diameter can accommodate a certain range of mandrel 51 diameters. The two ends of the U-shaped support bar 2412 form guide slopes 2412, which can guide the mandrel 51 of the membrane roll 5 to be accurately embedded into the U-shaped support bar 2412 when the membrane roll 5 is hoisted and loaded.

[0074] It should be noted that the distance between the front and rear supports 241 on the membrane roll bracket 2 is adapted to the membrane rolls 5 with different shaft lengths. When the spindle 51 of the membrane roll 5 is longer, the distance between the front and rear supports 241 needs to be increased; when the spindle 51 of the membrane roll 5 is shorter, the distance needs to be reduced.

[0075] See Figure 6 and Figure 7As shown, both supports 241 have limiting seats 25 on their outer sides to restrict the forward and backward movement of the mandrel 51 of the film roll 5. When loading the film roll, the mandrel needs to be aligned with the limiting seat. If the two are tightly fitted, the mandrel position needs to be precisely adjusted to complete the assembly, which can easily lead to loading delays due to alignment deviations. The reserved safety gap provides the mandrel with room for error. Even if there is an alignment deviation between the mandrel and the limiting seat, it can still be smoothly placed into the loading slot without repeated fine-tuning of the mandrel angle or position. For example, when a forklift is handling the film roll, it is only necessary to roughly align the mandrel with the slot, and the gap can be used to quickly complete the placement. Although the gap allows for slight forward and backward movement of the mandrel, the range of movement is strictly limited to a safe range. The limited range of movement ensures that the film roll will not collide with the bracket components or adjacent film rolls due to excessive displacement, completely eliminating problems such as scratches and wrinkles on the outer circle of the film roll.

[0076] Furthermore, the top of the limiting seat 25 is provided with a guide slope 251 for the mandrel 5 of the film roll 5 to slide into the loading slot 242. When the film roll 5 is hoisted close to the film roll bracket 2, even if there is a front-to-back deviation between the mandrel 51 of the film roll 5 and the opening of the loading slot 242, the end of the mandrel 51 will first contact the guide slope 251 and slide naturally along the guide slope 251 to the opening of the loading slot 242. There is no need for manual adjustment and alignment, which reduces the difficulty of loading.

[0077] When the length of the mandrel 51 of the membrane roll 5 is too short, the end of the mandrel 51 of the membrane roll 5 cannot fit against the limiting seat 25, which will cause the membrane roll 5 to move axially. To address this, the back sides of the two supports 241 are rotatably connected to a baffle 26 (such as a rubber baffle 26) that can be inserted between the support 241 and the limiting seat 25. When the length of the mandrel 51 of the membrane roll 5 is too short, the baffle 26 is rotated out from the back side of the support 241 so that it is positioned between the support 241 and the limiting seat 25. The baffle 26 can fill the gap between the end of the mandrel 51 and the limiting seat 25. When the length of the mandrel 51 is standard, the baffle 26 can be rotated back to the back side of the support 241 without affecting normal limiting, thus greatly improving the compatibility of the membrane roll bracket 2 with different production batches of membrane rolls 5.

[0078] Preferably, the bottom of the front support beam 21 and the rear support beam 22 are provided with insert rings 27 for inserting the fork arms of the forklift.

[0079] If multiple sets of support brackets 1 are held in place by simply pressing against each other within the container 6, transportation bumps can easily cause the support brackets 1 to shift back and forth, or shift left and right, and may even cause the membrane rolls 5 to collide. Therefore, the side support bracket 11 has a connecting pin 16 on its rear end face and a connecting hole 17 on its front end face. This solution connects adjacent support brackets 1 into a single unit through the precise engagement of the connecting pin 16 and the connecting hole 17. After the connecting pin 16 of the rear support bracket 1 is inserted into the connecting hole 17 of the front support bracket 1, a mechanical lock is formed, restricting the relative displacement of the support brackets 1 in the front and back, and left and right directions. Furthermore, the tight engagement of the connecting pin 16 and the connecting hole 17 allows for zero-gap fitting between the support brackets 1, eliminating the need for a buffer gap, better utilizing the space of the container 6, increasing the membrane roll 5 loading capacity per unit container 6, and significantly reducing transportation costs.

[0080] It is worth mentioning that after the first set of brackets is installed, the connecting hole 17 of the second set of brackets is connected to the connecting pin 16 of the first set of brackets, and the two sets of brackets form a whole. After the crossbeam assembly 12 at the front top corner of the second set of brackets is installed, it will play an auxiliary supporting and fixing role at the rear top corner of the first set of brackets, further enhancing the stability of the frame.

[0081] In this embodiment, the membrane roll transport frame is constructed entirely of steel. Steel possesses tensile strength and bending stiffness far exceeding those of materials such as plastic and wood (e.g., Q235 steel has a tensile strength of 375-500 MPa), enabling it to stably withstand the concentrated loads and long-term pressures of the membrane roll 5. The steel structure prevents problems such as beam bending and side support 2411 tilting caused by excessive stress on the support 1. Compared to the wooden support 1, the rated load-bearing capacity of the steel support 1 is significantly improved, ensuring that the membrane roll 5 remains in a stable loading posture and will not shift, be squeezed, or fall due to deformation of the support 1, thus guaranteeing the safety of membrane roll 5 during transportation from the structural source.

[0082] During long-distance transportation (such as road bumps, railway vibrations, and container loading and unloading impacts), the steel structure, with its excellent toughness and impact resistance, can effectively absorb external impact forces and reduce the impact of vibration on the membrane roll 5. For example, at the moment the container 6 is lifted and landed, the steel side support frame 11 and the supporting beam can quickly disperse the impact load, avoiding structural damage caused by local stress concentration; at the same time, the high rigidity of steel can reduce the overall vibration amplitude of the support 1, reduce the friction and collision between the membrane roll 5 spindle 51 and the loading slot 242, and significantly reduce the product loss rate during transportation.

[0083] Steel (especially steel structures with surface treatments such as galvanizing and spraying) has excellent corrosion and wear resistance, and can withstand moisture, dust, and mild chemical corrosion in the transportation environment. Compared with wooden supports (which are prone to moisture, mold, and insect infestation, and have a service life of only 6-12 months), steel supports can last for 5-8 years under normal maintenance, eliminating the need for frequent replacements. Furthermore, the high strength of steel makes it less susceptible to damage from impacts during loading and unloading (such as collisions with forklift forks or friction between supports), further reducing maintenance and replacement costs. In the long run, its economic advantages are significantly superior to other materials.

[0084] It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and inventive concept of this application, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A film roll transport rack, characterized in that, The device includes a support with multiple membrane roll loading sections, a membrane roll holder placed in the membrane roll loading sections, and a limiting structure set on the support to restrict the membrane roll holder from moving back and forth on the support. The membrane roll holder has various specifications, and each specification of the membrane roll holder is used to load membrane rolls with a specific axial length range. Each membrane roll holder has at least one membrane roll loading slot.

2. The film roll transport frame according to claim 1, characterized in that, The membrane roll holder has multiple membrane roll loading slots arranged at intervals along the left and right sides. The transverse length of membrane roll holders of different specifications is the same, but the width is different.

3. The film roll transport frame according to claim 1, characterized in that, The support includes two side frames and a crossbeam assembly connecting the two side frames. Each side frame is provided with a support beam and a limiting side beam that are the same number of layers as the film roll loading section and extend along the front and back. The film roll support is mounted on the support beam and is restricted to move left and right by the two limiting side beams.

4. The film roll transport frame according to claim 3, characterized in that, The limiting structure includes a front slot group set on one end of the support beam and a rear slot group set on the other end of the support beam. The front slot group includes multiple front slot pieces arranged at intervals along the length of the support beam, and the rear slot group includes multiple rear slot pieces arranged at intervals along the length of the support beam. The membrane roll bracket is inserted into the corresponding front and rear slot pieces.

5. The film roll transport frame according to claim 4, characterized in that, Both the front and rear grooves are U-shaped structures with an outward-facing flange at the top for the guide film roll holder to be inserted.

6. The film roll transport frame according to claim 3, characterized in that, The crossbeam assembly includes an outer support rod and an inner groove disposed on the inner surfaces of the two side supports and bearing the outer support rod.

7. The film roll transport frame according to claim 3, characterized in that, The crossbeam assembly includes a first outer push rod, a second outer push rod, and an adjusting screw connecting the first outer push rod and the second outer push rod. One end of the first outer push rod has a first threaded hole, and the end of the second outer push rod facing the first outer push rod has a second threaded hole. The internal threads of the first threaded hole and the second threaded hole are opposite. The inner surfaces of the two side supports are respectively provided with inner grooves for supporting the first outer push rod and the second outer push rod.

8. The film roll transport rack according to any one of claims 3 to 7, characterized in that, The rear end face of the side support is provided with a connecting pin, and the front end face is provided with a connecting hole.

9. The film roll transport frame according to claim 1, characterized in that, The membrane roll support includes a transversely extending front support beam and a rear support beam, and a connecting rod for connecting the front support beam and the rear support beam. The membrane roll loading slot includes two supports symmetrically arranged on the front support beam and the rear support beam, respectively. Each of the two supports has a loading slot for the mandrel of the membrane roll to be inserted.

10. The film roll transport frame according to claim 9, characterized in that, The support includes two side supports and a U-shaped support strip placed between the two side supports, with the bottom of the U-shaped support strip pressing against the front or rear support beam.

11. The film roll transport frame according to claim 9, characterized in that, Both supports are provided with limiting seats on their outer sides to restrict the forward and backward movement of the mandrel of the film roll. The top of the limiting seats is provided with a guide slope to guide the mandrel of the film roll into the loading slot.

12. The film roll transport frame according to claim 11, characterized in that, The back of the two supports is rotatably connected to a baffle that can be inserted between the support and the limiting seat.

Images