Universal printing screen storage rack

Abstract

The utility model relates to a general printing screen plate storage frame, including frame main part, interval ground sets up in the upper portion of frame main part multiple U type spacing piece, detachably set up in the below of U type spacing piece at least one bearing assembly, be equipped with multiple positioning structure on bearing assembly, the center distance of multiple positioning structure is equal with the center distance of multiple U type spacing piece, so that every positioning structure is in the projection of vertical direction and the center area alignment of a corresponding U type spacing piece, constitute the accommodation space for vertical type and receive the storage screen plate together. The utility model discloses a general printing screen plate storage frame, improves the general property and maintenance convenience, solves the problem that traditional storage frame general property is poor, inconveniently removes and cleans.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for printed circuit board manufacturing, and in particular to a storage device for storing printing screens. Background Technology

[0002] In the production of printed circuit boards (PCBs), printing screens are crucial process equipment, and their storage and management directly impact production efficiency and screen lifespan. Currently, most common screen storage racks are fixed welded structures, which have several shortcomings: First, their storage compartment sizes are fixed, meaning one type of rack typically only accommodates a single screen size, requiring multiple racks on the production line and consuming significant valuable workshop floor space. Second, the integral welded structure makes the racks bulky and heavy, making repositioning inconvenient. Third, the fixed structure makes thorough cleaning of internal corners difficult, leading to dust accumulation. Furthermore, existing fixed storage racks are inflexible and lack adaptability when dealing with production process changes or screen size upgrades. Once screen size standards change, existing racks often become obsolete, resulting in wasted assets. Therefore, there is an urgent need in this field for a storage solution that is not only easy to maintain but also flexibly adaptable to multiple screens within a certain size range, possessing good versatility to reduce overall costs and improve space planning and logistics efficiency in the production area. Utility Model Content

[0003] In view of this, the present invention provides a universal printing screen storage rack to solve the problems of poor versatility, inconvenience in moving and cleaning existing storage racks.

[0004] The objective of this utility model is achieved through the following technical solution: A universal printing screen storage rack includes a frame body, a plurality of U-shaped partitions spaced apart on the upper part of the frame body, and at least one support component detachably disposed below the U-shaped partitions. The support component is provided with a plurality of positioning structures. The center distance between the plurality of positioning structures is equal to the center distance between the plurality of U-shaped partitions, such that the vertical projection of each positioning structure is aligned with the central area of ​​a corresponding U-shaped partition, together forming a accommodating space for vertically receiving and storing printing screens.

[0005] This storage rack provides stable support through its main frame. The upper U-shaped partition and the positioning structure on the lower detachable load-bearing component work together, and the uniformly spaced design creates a well-organized storage space. This allows a single storage rack to stably accommodate printing screens of various sizes, improving space utilization. The detachable design facilitates cleaning and maintenance, and the vertical storage method reduces the risk of contact and collision between screens. The overall structure performs excellently in terms of versatility, ease of maintenance, and operational safety.

[0006] Preferably, the U-shaped partition is made of bent metal round material.

[0007] Metal round bars offer good strength and durability. The U-shaped structure effectively guides and contains the screen, while the circular cross-section helps reduce contact friction and lowers the risk of scratches on the screen surface. At the same time, the material is easy to process and shape, which helps control production costs.

[0008] Preferably, the load-bearing component is connected to the frame body via a sliding fit.

[0009] The sliding connection allows for convenient installation and removal of the support components without tools, improving maintenance efficiency. This connection method ensures the stability of the support components after they are in place, providing reliable bottom support for the screen, while also facilitating thorough cleaning and flexible layout adjustments according to storage needs.

[0010] Preferably, operating handles are provided on both sides of the supporting component.

[0011] The operating handle provides a labor-saving and safe grip for handling and operating the load-bearing components, avoiding the risk of scratches that may be caused by touching the edges with bare hands, improving the stability of the operation process and the convenience of cleaning and maintenance, while also helping to enhance the overall structural rigidity of the load-bearing components.

[0012] Preferably, the U-shaped partition and the supporting component below it constitute a set of storage layers, and the frame body is provided with at least two storage layers distributed in the vertical direction.

[0013] The multi-layer design increases storage capacity within the same footprint, improving space utilization efficiency. Vertical partitioning facilitates the classification, storage, and management of screens, making access operations more organized and efficient. This structure also provides excellent scalability to meet different storage needs.

[0014] Preferably, the surface of the operating handle has an anti-slip structure.

[0015] The anti-slip structure increases the friction on the handle surface, providing a stable and reliable grip even when hands are wet or oily. This effectively prevents accidental slippage during operation, ensuring operational safety and improving user comfort.

[0016] Preferably, the working surface of the U-shaped partition is a smooth surface.

[0017] The smooth surface reduces frictional resistance during screen storage and retrieval, making operation smoother and less strenuous. It also effectively protects the delicate screen surface, especially the mesh, from scratches and wear, extending the screen's service life. In addition, the smooth surface does not easily accumulate dust, making it easy to clean and maintain.

[0018] Preferably, the working surface of the positioning structure is a smooth surface.

[0019] The smooth surface ensures smooth support for the bottom edge of the screen, helps to distribute pressure, prevents indentations or deformation of the screen edge, maintains the flatness of the screen, reduces wear caused by micro-friction, and makes the area easy to keep clean.

[0020] Preferably, the edges of the U-shaped partition and the positioning structure are rounded.

[0021] Rounded corners eliminate sharp edges, fundamentally reducing the risk of the screen being scratched or cut upon contact, protecting valuable production tools, and providing operators with a safer working environment, avoiding the possibility of accidental scratches.

[0022] Preferably, the main frame is welded from metal profiles.

[0023] The welded metal profile structure gives the frame a high degree of strength, rigidity and overall stability, enabling it to withstand long-term loads. The welded connections prevent loosening and ensure the reliability of the support. At the same time, this structure is durable and easy to customize according to needs.

[0024] The advantages of this utility model compared to the prior art are: This utility model's universal printing screen storage rack, through its structural design that combines U-shaped partitions with consistent spacing with detachable load-bearing components, enables a single storage rack to stably accommodate various printing screens of different sizes, effectively improving the utilization rate of storage space and helping to alleviate space pressure in the work area.

[0025] The detachable design of the supporting components, along with the operating handles, makes them easy to remove and move when cleaning or layout adjustments are needed, providing convenience for daily maintenance.

[0026] By smoothing the working surfaces and rounding the edges of the U-shaped partitions and positioning structures, the risk of scratching the screen surface, especially the mesh, can be reduced during screen storage and retrieval, which helps to extend the service life of the screen.

[0027] Furthermore, since the U-shaped partition and positioning structure together define the storage posture of the screen rather than its specific size, the accommodating space can accommodate screens of various specifications with widths less than or equal to the spacing. Compared to traditional "one-to-one" fixed grids, this invention achieves a "one-to-many" storage mode, improving the space utilization of a single rack. Actual calculations show that in typical application scenarios, a single storage rack can replace 2-3 different types of fixed storage racks, further increasing the utilization of workshop floor space.

[0028] The detachable design of the support components not only facilitates cleaning but also standardizes the functional modules. Users can quickly replace support components with different load-bearing characteristics or surface materials according to different storage needs (such as storing heavy-duty screens or screens requiring special protection), greatly expanding the application scenarios and service life of the storage rack. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of a general-purpose printing screen storage rack according to an embodiment of the present invention.

[0031] Figure 2 This is a plan view of a general-purpose printing screen storage rack according to an embodiment of the present invention.

[0032] Figure 3 This is a side view of a general-purpose printing screen storage rack according to an embodiment of the present invention.

[0033] Labeling explanation: 10 Frame main body, 20 U-shaped partition, 30 Load-bearing component, 31 Positioning structure, 40 Operating handle. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They 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 be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0038] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0039] This embodiment provides a universal printing screen storage rack, including: The frame body 10 can be configured as a single-layer structure, or it can be configured to include at least two storage layers distributed in the vertical direction to increase storage capacity. This embodiment is described using a frame body with two storage layers as an example, but the scope of protection of this utility model is not limited thereto. When the frame body 10 is configured as a single layer, its structure is the simplest and it is suitable for occasions where the storage capacity is small or the space height is limited. When it is configured as a multi-layer structure, each layer can be independently configured with the U-shaped partition 20 and the bearing component 30 to form an independent storage unit. There is sufficient vertical space between the layers to ensure that the operator can easily pick up and put down the screen in each layer. Multiple U-shaped partitions 20 are spaced apart on the upper part of the frame body 10; At least one support component 30 is detachably disposed below the U-shaped partition 20, and the support component 30 is provided with a plurality of positioning structures 31; in a preferred embodiment, the support component 30 is a block-shaped component (e.g., a tray or plate), and the positioning structure 31 is a plurality of grooves formed on the upper surface of the block-shaped component; the openings of these grooves are upward, used to support and limit the position of the bottom edge of the screen; it is understood that the positioning structure 31 may also be spaced protrusions or other structures that can limit the bottom of the screen; The center-to-center distance between the multiple positioning structures 31 is equal to the center-to-center distance between the multiple U-shaped partitions 20. Here, "center-to-center distance" refers to the horizontal distance between the center lines of two adjacent positioning structures 31 and the horizontal distance between the center lines of two adjacent U-shaped partitions 20. This consistent center-to-center distance ensures that the vertical projection of each positioning structure 31 is precisely aligned with the central area of ​​a corresponding U-shaped partition 20, thus collectively forming a series of regular accommodating spaces for vertically supporting the storage screen.

[0040] Based on this design, the actual effective width of a single accommodating space is determined by the center distance. As long as the width of the screen to be stored is less than or equal to the center distance, it can be stably accommodated within this accommodating space. This allows the storage rack of this invention to flexibly adapt to various specifications of screens within a certain size range, achieving a "one-to-many" universal storage and improving space utilization.

[0041] The core structural design of this storage rack effectively solves several inherent problems existing in the prior art. The main frame 10, as the supporting skeleton of the entire device, provides the necessary structural rigidity and overall stability, ensuring that it will not deform or wobble when carrying a certain number of printing screens, guaranteeing long-term reliability. The U-shaped baffles 20 spaced at the top, with their unique shape, effectively contain and guide the top edge of the printing screens, playing a crucial role in limiting and supporting them when stored vertically. This effectively prevents the screens from tipping forward, backward, or sideways due to instability, thus avoiding collisions between screens and potential damage to the mesh or frame deformation. The lower support component 30 features an innovative detachable design. This feature completely changes the drawbacks of traditional storage racks where the lower structure is fixed and difficult to access. When cleaning the inside of the storage rack is required, or when adjusting the lower support position due to special screen sizes, or when equipment relocation is needed, operators can easily remove or install the support component 30 from the main frame 10, greatly improving the convenience of maintenance and the flexibility of equipment layout. The key feature of the multiple positioning structures 31 on the supporting component 30 is that their spacing is strictly consistent with the spacing of the upper U-shaped partition 20. This vertical correspondence defines a series of regular and independent accommodating spaces. When the printing screen is placed in, its upper and lower edges can simultaneously and accurately fall into the corresponding U-shaped partition 20 and positioning structures 31, allowing the weight of the screen to be evenly distributed, the stress state to be more reasonable, and improving the stability and safety of storage. This consistent spacing design is the cornerstone of versatility, enabling a single storage rack to accommodate various sizes of printing screens within a certain size range, from relatively narrow to relatively wide screens, all of which can find a suitable and stable storage position in this storage rack, thereby improving the space utilization of the storage rack. The improved versatility directly leads to space saving. The production workshop no longer needs to equip each specific size screen with a dedicated storage rack, which reduces the occupation of valuable workshop floor space, allowing for a more compact and efficient layout of the production area. The vertical storage method itself has inherent advantages. It makes the handling of screen printing plates intuitive and convenient, allowing operators to manage them like taking books from a bookshelf. Simultaneously, vertical storage minimizes the contact area between screen printing plates, further reducing the risks of surface friction and deformation caused by close stacking. The detachable support components 30 also give the storage rack excellent scalability and adaptability. Users can flexibly configure different numbers or types of support components 30 according to changes in actual storage needs, or easily clean and reorganize existing storage racks. This optimizes workflows and improves production efficiency.In summary, although the overall structure of this storage rack is simple, through the synergistic effect of the aforementioned core features, it demonstrates beneficial effects in terms of versatility, ease of maintenance, operational safety, and space efficiency. Moreover, the manufacturing cost is relatively controllable, making it easy to promote and apply in industrial production environments.

[0042] Regardless of whether the positioning structure 31 adopts a groove or a protrusion, its depth or height is designed to effectively limit the position of the bottom of the screen in the vertical direction, typically between 5mm and 20mm. This design ensures the stability of the screen when it is upright and avoids the problem of inconvenience in picking up and putting down the screen due to an excessively deep slot.

[0043] In this embodiment, the U-shaped partition 20 is formed by bending a metal round material.

[0044] The choice of round metal as the raw material for the U-shaped divider 20 is based on its excellent mechanical properties and processing characteristics. Metal itself possesses high strength and rigidity, capable of withstanding the continuous load and slight impacts from repeated insertion and removal of the printing screen, ensuring that the divider is not prone to bending deformation or fatigue damage during long-term use, thus guaranteeing the long-term accuracy and reliability of the storage rack. Compared to other angular shapes, the circular cross-section has a natural and continuous surface transition without sharp edges. This results in less frictional resistance and a more uniform distribution of contact stress when the screen contacts and slides relative to the divider, greatly reducing the risk of scratches, fraying, or wear on the screen surface (especially in delicate mesh areas). Bending the round material into a U-shaped structure creates an upward-opening, enclosed space. This space effectively accommodates and constrains the upper edge of the screen, providing good guidance for insertion, making placement smoother and less strenuous. It also accommodates, to some extent, minor dimensional tolerances or slight unevenness that may exist on the screen border. Metal round materials typically possess a good surface finish, which inherently helps reduce friction and dust accumulation. Further smoothing treatments enhance this effect. From a manufacturing perspective, metal round materials are common industrial raw materials, readily available, relatively economical, and their bending and forming processes are mature and reliable, facilitating mass production and helping to control overall manufacturing costs. Therefore, this preferred solution achieves a good balance between ensuring functionality, improving user experience, and controlling costs.

[0045] In this embodiment, the support component 30 is connected to the frame body 10 via a sliding engagement. The support component 30 is detachably installed on the storage layer at the lower part of the frame body 10 via a sliding engagement. Specifically, two parallel guide rails 60 are fixedly provided at the lower part of the frame body 10 corresponding to the installation position of each support component 30. Correspondingly, pulleys or sliders (not shown) adapted to the guide rails 60 are provided on both sides of the bottom edge of the support component 30. Through the engagement of the pulleys or sliders with the guide rails 60, the support component 30 can be smoothly pulled and moved along the guide rails 60.

[0046] To limit and prevent tipping of the load-bearing component 30, a limiting block 70 is provided at the end of each guide rail 60. This block prevents the load-bearing component 30 from moving excessively inward during insertion and acts as a final stop during extraction, preventing it from completely detaching from the frame body 10. Furthermore, when the load-bearing component 30 is pulled out to its maximum stroke, at least one-third of it remains on the guide rail 60. Its own weight and cooperation with the guide rail 60 allow it to maintain balance naturally, preventing tipping. This facilitates the handling of the screen or the cleaning of the load-bearing component 30 by operators.

[0047] To further ensure stability under load, the load-bearing component 30 can be locked to the frame body 10 by a simple pin (not shown) or a snap-fit ​​structure (not shown) after it is fully pushed into the frame body 10, preventing it from accidentally sliding out when the storage rack is handled or moved.

[0048] The sliding fit design for connecting the support component 30 to the frame body 10 is ingenious and practical. This connection method essentially provides a reversible and clearly defined path for the installation and removal of the support component 30. Operators can easily install and remove the support component 30 manually using only pushing and pulling motions, without the need for any special tools. This ease of operation greatly improves user experience and maintenance efficiency. Once the support component 30 is installed in place via the sliding fit, it typically forms a tight surface or line contact with the frame body 10. This tight fit effectively limits any minor displacement or swaying that may occur in various directions during use, thus providing a stable and reliable bottom support for the vertically placed printing screen and ensuring the stability of the storage state. The sliding fit design itself incorporates considerations for ease of maintenance. In the printing production environment, contaminants such as dust and ink residue are difficult to completely avoid, and these contaminants easily accumulate inside the storage rack, especially in the area of ​​the support component 30. Through a sliding fit, the support component 30 can be completely removed as an independent unit, making thorough cleaning of all its surfaces (including the bottom and sides) exceptionally convenient and solving the persistent problem of difficult-to-clean corners in traditional welded structures. Furthermore, this easy-to-disassemble feature also provides the storage rack with greater layout flexibility. Users can quickly replace the support component 30 with different positioning structures 31 configurations according to the differences in screen sizes used in different production batches, or simply adjust the installation position of the support component 30 on the frame body 10, thereby achieving rapid reconfiguration of the storage space to adapt to dynamically changing production needs. This design enhances the equipment's adaptability to production changes.

[0049] In this embodiment, operating handles 40 are provided on both sides of the support component 30.

[0050] The seemingly simple design of providing operating handles 40 on both sides of the load-bearing component 30 offers numerous benefits in practical use. The most direct function is to provide operators with clear, comfortable, and ergonomic points of leverage. When moving the load-bearing component 30 or removing it from the frame body 10, operators can naturally grip the handles, resulting in more even and effective force application. This avoids the risks of instability, slippage, or even cuts from sharp edges that can occur when gripping the edges of the load-bearing component 30 with bare hands, thus improving operational safety and reducing effort. The handles also indirectly guide correct operating posture, helping to reduce muscle strain caused by improper operation. The value of the operating handles 40 is even more pronounced in cleaning and maintenance scenarios. When moving the load-bearing component 30 to a cleaning area or flipping it over to clean the bottom, the handles provide a stable grip, making the handling process more controllable and safer, and improving the efficiency of cleaning work. From a structural strength perspective, the operating handle 40 is typically firmly connected to the main structure of the load-bearing component 30. It can function as a reinforcing rib or supporting member, helping to enhance the overall rigidity and deformation resistance of the load-bearing component 30. This is especially beneficial when bearing heavy mesh panels or undergoing frequent push-pull operations, reducing the possibility of component twisting and extending its service life. Therefore, the operating handle 40 is a practical design that integrates safety, convenience, and structural enhancement.

[0051] In this embodiment, the U-shaped partition 20 and the supporting component below it constitute a set of storage layers, and the frame body 10 is provided with at least two storage layers distributed in the vertical direction.

[0052] The use of a multi-layered storage design distributed vertically is an effective strategy for improving the space utilization efficiency of storage racks. This design concept allows the storage rack to accommodate more printing screens by expanding upwards within the same floor area, increasing its overall storage capacity. This is of significant practical value for environments with limited space in production workshops where maximizing storage capacity per unit area is crucial. The multi-layered structure naturally partitions the storage space vertically, facilitating systematic and orderly management of screen storage. Operators can categorize and store screens according to their type, usage frequency, size, and other attributes, making the storage layout clearer and more rational, reducing the time required to find specific screens, and improving the efficiency of storage and retrieval operations. Each storage layer is physically relatively independent, ensuring that operations on one layer (such as cleaning, adjusting, or retrieving screens) do not unnecessarily interfere with other layers, facilitating refined management and maintenance. From an scalability perspective, the design of the multi-layered frame body 10 also allows for flexibility to accommodate future changes in needs. Although this solution specifies at least two layers, the basic structural concept can be extended to three or more layers. Users can choose to configure models with more storage layers according to the growth of their own storage capacity, or configure carrier components 30 with specific functions in some layers to adapt to different production scales and process requirements.

[0053] In this embodiment, the surface of the operating handle 40 is provided with an anti-slip structure.

[0054] The inclusion of an anti-slip structure on the surface of the operating handle 40 is a detail designed to optimize operational safety and comfort. Whether achieved through knurling, embossing, covering with anti-slip materials, or other processes, the core function of this anti-slip structure is to increase the static friction coefficient between the handle surface and the operator's hand. In practice, this means that even with sweat, oil, or moisture on the hands, the operator can maintain a stable and reliable grip, significantly reducing the risk of the component accidentally falling off during handling or pushing / pulling of the load-bearing component 30. Accidental component detachment can damage the load-bearing component 30 itself or the expensive mesh plates stored on it, and may also threaten the operator's personal safety; therefore, the anti-slip structure plays a crucial role in preventing such accidents. The improved grip also enhances operational comfort and control precision, allowing the operator to operate with greater confidence and stability, reducing psychological burden and physical exertion. Furthermore, the anti-slip structure typically has a textured surface, which can disperse contact stress to some extent, reducing localized pressure that may occur when the hand is gripped for extended periods. From a durability perspective, specific anti-slip structures (such as knurled metal) can also enhance the abrasion resistance of the handle surface, resisting the inevitable friction wear during long-term use, and helping to maintain the handle's good appearance and function over its lifespan.

[0055] In this embodiment, the working surface of the U-shaped partition 20 is a smooth surface.

[0056] Smoothing the working surface of the U-shaped partition 20 is an important measure to protect the integrity of the printing screen. The working surface here specifically refers to the areas that come into contact with and slide relative to the screen frame or mesh during storage and retrieval. A smooth surface effectively reduces the coefficient of dynamic friction between the contact interfaces, thus reducing the sliding resistance experienced by the printing screen when inserting into or removing it from the receiving space, making the operation smoother and less strenuous. This reduction in friction directly translates into improved screen protection. Printing screens, especially their mesh portion, are typically very delicate and fragile. Rough contact surfaces can easily scratch, snag, or even tear the mesh during relative movement; such damage is often irreversible and can directly render the screen unusable. A smooth surface greatly mitigates this risk, ensuring the screen remains in good condition during frequent storage and retrieval, extending its service life. In addition to protecting the screen, a smooth surface itself is less prone to accumulating dust, ink residue, and other contaminants. Even if a small amount of contaminants adhere to the screen, cleaning is relatively easy due to its smooth surface. Usually, a simple wipe is sufficient to restore cleanliness, which helps maintain a tidy storage environment and reduces the risk of secondary contamination of the screen.

[0057] In this embodiment, the working surface of the positioning structure 31 is a smooth surface.

[0058] Smoothing the working surface of the positioning structure 31 is no less important than the treatment of the U-shaped partition 20. As the component directly supporting the bottom edge of the printing screen, the positioning structure 31, while not subject to significant relative sliding, does involve static contact and fretting friction. A smooth surface ensures a smooth surface or line contact between the bottom edge of the screen and the positioning structure 31, rather than point contact or contact with microscopic protrusions. This helps to evenly distribute the weight of the screen, preventing excessive local stress that could cause indentations or deformation of the screen edge, thus maintaining the original flatness of the screen. Minor displacement is inevitable when the screen is placed or slightly adjusted; the smooth surface minimizes wear caused by this fretting friction, protecting the bottom edge of the screen from scratches. Similar to the U-shaped partition 20, the smooth surface also prevents dirt accumulation in the area of ​​the positioning structure 31, facilitating daily cleaning and maintenance. Cleaning the bottom area is crucial to preventing contaminants from rising and contaminating the working surface of the screen. A clean positioning structure 31 working surface provides a safe and reliable bottom support environment for the screen printing plate.

[0059] In this embodiment, the edges of the U-shaped partition 20 and the positioning structure 31 are both rounded.

[0060] The uniform rounded corner treatment of the edges of the U-shaped partition 20 and the positioning structure 31 is a crucial safety and protective design. This treatment aims to systematically eliminate all sharp edges that may come into contact with the screen or operators. Sharp edges are potential stress concentration points. When a delicate printing screen, especially its fragile mesh portion, accidentally scratches or tears these edges, it can easily cause serious damage, often catastrophic and costly to repair. Rounded corners effectively avoid this, transforming potential line or point contact into gentler surface or curved contact, reducing pressure per unit area and thus significantly reducing the risk of scratching the screen. This not only protects valuable production tools but also reduces production interruptions and quality issues caused by screen damage. Rounded corners also improve the ergonomic safety of the operation process. When operators access the screen or perform cleaning and maintenance, their hands, arms, and other parts may come into contact with these structural components. Smooth edges prevent the possibility of scratching operators, creating a more friendly and safer working environment. From a product quality perspective, the rounded corners also make the storage rack look more refined and professional, reflecting attention to detail and emphasis on user safety.

[0061] In this embodiment, the frame body 10 is welded from metal profiles.

[0062] Constructing the main frame 10 using welded metal profiles is a reliable manufacturing solution to ensure the storage rack possesses the required structural strength and overall stability. Metal profiles, such as common square or rectangular steel pipes, are characterized by standardized specifications, stable quality, high strength, and good rigidity, providing a robust main load-bearing structure for the storage rack and effectively resisting bending and torsional deformation under long-term use and load. Welded connections create a permanent metallurgical bond at the joints, with connection strength typically higher than detachable methods like bolted connections. This ensures the overall structural integrity and rigidity of the frame, preventing potential loosening during use, which is crucial for equipment requiring stable support of precision screens. Metal profiles generally have good processing performance, easily cut, drilled, and welded according to design requirements, facilitating customized and standardized production of the frame structure. The main frame 10, welded from metal profiles, typically has a long service life and good corrosion resistance (especially when using materials like stainless steel), adapting to temperature and humidity variations and potential chemical exposure in industrial production environments, ensuring long-term reliable operation of the equipment. This structural form is mature and reliable, ensuring performance while also facilitating cost control.

[0063] 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 universal printing screen storage rack, characterized in that, include: Main framework (10); Multiple U-shaped partitions (20) are spaced apart on the upper part of the frame body (10); At least one support component (30) is detachably disposed below the U-shaped partition, and the support component (30) is provided with a plurality of positioning structures (31). The center distance between the multiple positioning structures (31) is equal to the center distance between the multiple U-shaped partitions (20), so that the projection of each positioning structure (31) in the vertical direction is aligned with the central area of ​​a corresponding U-shaped partition (20), together forming a accommodating space for vertically receiving and storing the screen.

2. The universal printing screen storage rack according to claim 1, characterized in that, The U-shaped partition (20) is made of bent metal round material.

3. The universal printing screen storage rack according to claim 1, characterized in that, The load-bearing component (30) is connected to the frame body (10) by a sliding fit, which includes the fit between the guide rail provided on the frame body (10) and the pulley or slider provided on the load-bearing component (30).

4. The universal printing screen storage rack according to claim 3, characterized in that, Operating handles (40) are provided on both sides of the bearing component (30).

5. The universal printing screen storage rack according to claim 1, characterized in that, The U-shaped partition (20) and the supporting components below it constitute a set of storage layers, and the frame body (10) is provided with at least two storage layers distributed in the vertical direction.

6. The universal printing screen storage rack according to claim 4, characterized in that, The surface of the operating handle (40) is provided with an anti-slip structure.

7. The universal printing screen storage rack according to claim 1, characterized in that, The working surface of the U-shaped partition (20) is a smooth surface.

8. The universal printing screen storage rack according to claim 1, characterized in that, The working surface of the positioning structure (31) is a smooth surface.

9. The universal printing screen storage rack according to claim 1, characterized in that, The edges of the U-shaped partition (20) and the positioning structure (31) are rounded.

10. The universal printing screen storage rack according to claim 1, characterized in that, The main frame (10) is welded from metal profiles.

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