A prepreg storage rack anti-toppling device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LONGYU NEW MATERIALS CO LTD
- Filing Date
- 2025-09-19
- Publication Date
- 2026-08-07
AI Technical Summary
然而，现有的储存架大多仅依靠自身的框架结构和低重心设计来实现防倾倒，由于冷库环境中地面易因冷凝水或清洁残留变得湿滑，且冷库内部为最大化利用存储空间通常设计得空间通道相对狭窄，当叉车进行搬运操作时若对位稍有偏差、发生意外碰撞，或者工作人员抽取料卷时用力不均匀、角度不当，储存架就容易因惯性作用或受力失衡而产生晃动，严重时会发生倾覆，一旦储存架倾倒，不仅会造成架体本身的结构损坏，还会导致架上卷筒状的半固化片在跌落和撞击过程中发生物理变形、表面挫伤，造成经济损失，为此提供一种半固化片储存架防倾倒装置
1、本申请中，由于采用了上述该方案，人员首先转动储存架外部的转轴，转轴带动凸轮同步旋转，凸轮通过自身的偏心结构推动U型支撑板顶面的弧形座下移，U型支撑板则沿安装孔内的限位支杆轴向向下压缩底面的弹簧，当凸轮外表面的卡块卡入弧形座顶面的卡槽内时，凸轮与弧形座实现定位固定，进而使U型支撑板两端的底面与地面紧密接触，形成对储存架的稳定支撑，该装置通过U型支撑板与地面的接触，能有效实现对半固化片储存架的稳定支撑，提高储存架的防倾倒效果，同时通过设置的连接机构，可以实现多个储存架的连接，进一步辅助强化半固化片储存架的防倾倒性能。
Smart Images
Figure CN224603581U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of prepreg storage technology, specifically a prepreg storage rack anti-tipping device. Background Technology
[0002] Prepreg is one of the core materials for manufacturing multilayer printed circuit boards (PCBs). It is mainly made by impregnating reinforcing materials (such as fiberglass cloth) with thermosetting resins such as epoxy resin and pre-curing them at a certain temperature. It is a semi-dry sheet with a certain degree of viscosity and flexibility. In the subsequent multilayer board lamination process, the uncured resin will flow further under high temperature and high pressure, fill the gaps and completely cure, while firmly bonding the copper foil of each layer to the inner substrate into a whole.
[0003] Precursor sheets are mostly shipped in roll form, which minimizes the surface area exposed during transportation and storage. They are also stored in cold storage using special storage racks, which slows down the pre-curing process of the resin and effectively maintains the original performance and service life of the precursor sheets. However, most existing storage racks rely solely on their frame structure and low center of gravity design to prevent tipping. Since the ground in cold storage environments is prone to becoming slippery due to condensation or cleaning residue, and the interior of cold storage facilities is typically designed with relatively narrow passageways to maximize storage space utilization, slight misalignment or accidental collisions during forklift handling, or uneven force or improper angles applied by workers when removing material rolls, can easily cause the storage rack to sway due to inertia or imbalance of forces. In severe cases, it can tip over. Once the storage rack tipps, not only will the rack itself be structurally damaged, but the rolled prepreg sheets on it will also suffer physical deformation and surface damage during the fall and impact, resulting in economic losses. Therefore, this paper provides an anti-tipping device for prepreg storage racks. Utility Model Content
[0004] The purpose of this application is to provide a prepreg storage rack anti-tipping device in order to solve the problems mentioned above.
[0005] The technical solution adopted in this application is as follows: A prepreg storage rack anti-tipping device includes a base, two storage racks are provided on the top surface of the base, a spacing adjustment mechanism connected to the two storage racks is provided inside the base, a mounting hole is provided on one side of the storage rack, a U-shaped support plate is provided inside the mounting hole, multiple springs are fixedly installed on the bottom surface of the U-shaped support plate, and the ends of the multiple springs away from the U-shaped support plate are fixed to the bottom surface of the mounting hole, a rotating shaft is rotatably connected inside the mounting hole above the U-shaped support plate, one end of the rotating shaft extends to the outside of the storage rack, a cam is fixedly installed on the outer surface of the rotating shaft, an arc-shaped seat that contacts the cam is fixedly installed near the middle of the top surface of the U-shaped support plate, a locking block is fixedly installed on the outer surface of the cam, a locking groove corresponding to the locking block is provided near the middle of the top surface of the arc-shaped seat, and a connecting mechanism is provided on the side of the storage rack.
[0006] In a preferred embodiment, the connecting mechanism includes a connecting cylinder, a limiting pin, a connecting rod, a buffer spring, a circular insert, and a second limiting hole. The connecting cylinder is fixedly installed on one side of the right storage shelf, and the limiting pin is movably inserted through the connecting cylinder near its top outer surface. The connecting rod is fixedly installed on one side of the left storage shelf, and the outer surface of the connecting rod is provided with a buffer spring. One end of the buffer spring is fixed to the side of the left storage shelf, and the other end of the buffer spring is fixedly installed with a circular insert. The circular insert has a second limiting hole near its top outer surface.
[0007] In a preferred embodiment, the spacing adjustment mechanism includes a bidirectional ball screw, a threaded slide, a limiting hole, and a rotating handwheel. The bidirectional ball screw is rotatably connected to the inside of the base via a bearing. Two threaded slides are threadedly connected to the outer surface of the bidirectional ball screw. Two limiting holes are formed on the top surface of the base. The top of the threaded slide passes through the inside of the limiting hole and is fixed to the bottom surface of the storage rack. One end of the bidirectional ball screw extends to the outside of the base, and a rotating handwheel is fixedly installed at the end of the bidirectional ball screw extending to the outside of the base.
[0008] In a preferred embodiment, brackets are fixedly installed on the left and right sides of the storage rack by bolts, and a V-shaped limiting plate is fixedly installed on the top surface of the brackets.
[0009] In a preferred embodiment, a plurality of limiting rods are movably inserted through the top surface of the U-shaped support plate, and the top ends of the plurality of limiting rods are fixed to the inner top surface of the mounting hole, while the bottom ends of the limiting rods are fixed to the inner bottom surface of the mounting hole.
[0010] In a preferred embodiment, a universal wheel with brake is rotatably connected to the bottom surface of the base near the corner, and a foot cup is provided on the bottom surface of the base on the side of the universal wheel with brake.
[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are: 1. In this application, due to the adoption of the above-mentioned scheme, the operator first rotates the external shaft of the storage rack, which drives the cam to rotate synchronously. The cam, through its own eccentric structure, pushes the arc-shaped seat on the top surface of the U-shaped support plate downward. The U-shaped support plate then compresses the spring on the bottom surface axially downward along the limiting support rod in the mounting hole. When the locking block on the outer surface of the cam is engaged in the locking groove on the top surface of the arc-shaped seat, the cam and the arc-shaped seat are positioned and fixed, thereby making the bottom surfaces at both ends of the U-shaped support plate in close contact with the ground, forming a stable support for the storage rack. This device can effectively achieve stable support for the prepreg storage rack through the contact between the U-shaped support plate and the ground, improving the anti-tipping effect of the storage rack. At the same time, through the set connection mechanism, multiple storage racks can be connected, further assisting in strengthening the anti-tipping performance of the prepreg storage rack. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this application.
[0013] Figure 2 This is a schematic diagram of the storage rack structure of this application.
[0014] Figure 3 This is a schematic diagram of the U-shaped support plate structure before installation in this application.
[0015] Figure 4 This is a schematic diagram of the threaded slide structure of this application.
[0016] The markings in the diagram are: 1. Base; 2. Storage rack; 3. Spacing adjustment mechanism; 301. Bidirectional ball screw; 302. Threaded slide; 303. Limiting hole; 304. Rotary handwheel; 4. Mounting hole; 5. U-shaped support plate; 6. Spring; 7. Rotating shaft; 8. Cam; 9. Arc-shaped seat; 10. Locking block; 11. Locking groove; 12. Connecting mechanism; 1201. Connecting cylinder; 1202. Limiting pin; 1203. Connecting rod; 1204. Buffer spring; 1205. Circular insert; 1206. Second limiting hole; 13. Brake; 14. V-shaped limiting plate; 15. Limiting support rod; 16. Universal wheel with brake. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0018] refer to Figures 1-4 As shown, a semi-cured sheet storage rack anti-tipping device includes a base 1. A caster wheel 16 with brakes is rotatably connected to the bottom surface of the base 1 near its corners. Foot cups are provided on the bottom surface of the base 1 on the sides of the caster wheel 16. The caster wheel 16 facilitates the movement of the entire device by staff, allowing for flexible adjustment of the storage position to suit the narrow aisles of cold storage. The foot cups contact the ground after the device is moved to the target position. Adjusting the height of the foot cups keeps the device level and stable, preventing accidental slippage due to slippery cold storage floors. Furthermore, the foot cups, in conjunction with the caster wheel 16, further enhance the stability of the device when stationary.
[0019] refer to Figures 1-4 As shown, the top surface of the base 1 is provided with two storage racks 2. The interior of the base 1 is provided with a spacing adjustment mechanism 3 connected to the two storage racks 2. The left and right sides of the storage racks 2 are respectively fixed with brackets 13 by bolts. The top surface of the brackets 13 is fixed with a V-shaped limiting plate 14. The cooperation of the two storage racks 2, the brackets 13 and the V-shaped limiting plate 14 facilitates the carrying of roll-shaped prepregs and increases the storage capacity. The spacing adjustment mechanism 3 can adjust the spacing between the two storage racks 2 according to the diameter of the prepreg roll, adapting to the storage needs of prepregs of different specifications and enhancing the versatility of the device.
[0020] refer to Figures 1-4As shown, the spacing adjustment mechanism 3 includes a bidirectional ball screw 301, a threaded slide block 302, a limiting hole 303, and a rotating handwheel 304. The bidirectional ball screw 301 is rotatably connected to the interior of the base 1 via bearings. Two threaded slide blocks 302 are threadedly connected to the outer surface of the bidirectional ball screw 301. Two limiting holes 303 are formed on the top surface of the base 1. The top ends of the threaded slide blocks 302 pass through the interior of the limiting holes 303 and are fixed to the bottom surface of the storage rack 2. One end of the bidirectional ball screw 301 extends to the outside of the base 1, and a rotating handwheel 304 is fixedly installed at the end of the bidirectional ball screw 301 extending to the outside of the base 1. Handwheel 304; the operator first rotates the handwheel 304, which drives the bidirectional ball screw 301 to rotate. Through the thread transmission characteristics of the bidirectional ball screw 301, the two threaded slides 302 are driven to move synchronously in opposite directions along the limiting hole 303, thereby realizing the precise adjustment of the distance between the two storage racks 2. The operation is convenient and the adjustment efficiency is high. Through the setting of the limiting hole 303, the movement trajectory of the threaded slide 302 can be restricted to prevent the threaded slide 302 from deviating as the bidirectional ball screw 301 rotates, ensuring the stability of the storage rack 2 during the movement process and preventing safety hazards caused by the shaking of the storage rack 2 during the adjustment process.
[0021] refer to Figures 1-4 As shown, a mounting hole 4 is provided on one side of the storage rack 2. A U-shaped support plate 5 is installed inside the mounting hole 4. Multiple limiting rods 15 are movably inserted through the top surface of the U-shaped support plate 5, and the top ends of the multiple limiting rods 15 are fixed to the inner top surface of the mounting hole 4, while the bottom ends of the limiting rods 15 are fixed to the inner bottom surface of the mounting hole 4. The mounting hole 4 provides a stable installation space for components such as the U-shaped support plate 5 and the limiting rods 15, ensuring the structural integrity of each component after assembly. The U-shaped support plate 5 provides auxiliary support for the base 1. The limiting rods 1 restrict the movement direction of the U-shaped support plate 5, allowing it to move only up and down along the axial direction of the limiting rods 15. This prevents the U-shaped support plate 5 from shifting laterally or tilting under stress, ensuring the accuracy of subsequent engagement with the cam 8 and improving the stability of the collaboration between components.
[0022] refer to Figures 1-4As shown, multiple springs 6 are fixedly installed on the bottom surface of the U-shaped support plate 5, and the ends of the multiple springs 6 away from the U-shaped support plate 5 are fixed to the inner bottom surface of the mounting hole 4. A rotating shaft 7 is rotatably connected inside the mounting hole 4 above the U-shaped support plate 5. One end of the rotating shaft 7 extends to the outside of the storage rack 2. A cam 8 is fixedly installed on the outer surface of the rotating shaft 7. An arc-shaped seat 9 that contacts the cam 8 is fixedly installed near the middle of the top surface of the U-shaped support plate 5. A locking block 10 is fixedly installed on the outer surface of the cam 8. A locking groove 11 corresponding to the locking block 10 is opened near the middle of the top surface of the arc-shaped seat 9. A connecting mechanism 12 is provided on the side of the storage rack 2. The springs 6 have elastic restoring characteristics and can provide upward support force for the U-shaped support plate 5, so that the arc-shaped seat 9 always keeps in close contact with the cam 8. The mechanism ensures that the cam 8 can stably drive the U-shaped support plate 5 downward when it rotates. The rotating shaft 7 drives the cam 8 to rotate, and the eccentric structure of the cam 8 pushes the arc-shaped seat 9 and the U-shaped support plate 5 downward, so that the U-shaped support plate 5 contacts the ground to achieve support and prevent the storage rack from tipping over. When the locking block 10 on the cam 8 is engaged in the locking groove 11 of the arc-shaped seat 9, the cam 8 and the arc-shaped seat 9 can be positioned and fixed, thereby stabilizing the U-shaped support plate 5 at a specific height. When it is necessary to release the restriction, the person only needs to press down on the U-shaped support plate 5. The bottom of the U-shaped support plate 5 is equipped with a flexible rubber pad to reduce damage to the ground. The connecting mechanism 12 can realize the connection and fixation between the two storage racks 2, improving the overall structure's anti-tipping ability.
[0023] refer to Figures 1-4As shown, the connecting mechanism 12 includes a connecting cylinder 1201, a limiting pin 1202, a connecting rod 1203, a buffer spring 1204, a circular insert 1205, and a second limiting hole 1206. The connecting cylinder 1201 is fixedly installed on one side of the right storage rack 2. The limiting pin 1202 is movably inserted through the connecting cylinder 1201 near its top outer surface. The connecting rod 1203 is fixedly installed on one side of the left storage rack 2. The buffer spring 1204 is provided on the outer surface of the connecting rod 1203. One end of the buffer spring 1204 is fixed to the side of the left storage rack 2, and the other end of the buffer spring 1204 is fixedly installed with a circular insert 1205. The circular insert 1205 has a second limiting hole 1206 near its top outer surface. When the user needs to connect the two prepreg storage racks... When connecting them, first insert one end of the circular insert 1205 into the interior of the connecting cylinder 1201. Then, the personnel insert the limiting pin 1202 into the interior of the second limiting hole 1206. This facilitates the limiting and fixing of the circular insert 1205 inside the connecting cylinder 1201, thus enabling the connection of two prepreg storage racks. In this way, a number of prepreg storage racks can be connected in series, transforming the originally independent individual storage racks 2 into an integrated storage structure. This significantly improves the overall anti-tilting ability of the storage rack and effectively prevents individual storage racks 2 from shaking or even tipping over due to force imbalance when subjected to accidental collisions with forklifts, external force pulling when workers pull out the rolls, or interference from other operations in the cold storage. This ensures the safety of prepreg storage and on-site operations.
[0024] The implementation principle of the anti-tipping device for a semi-cured sheet storage rack in this application is as follows: The user first moves the base 1 to the target storage position in the cold storage. Then, by adjusting the feet on the side of the base 1, and with the braking function of the universal caster 16 with brake on the bottom surface of the base 1, the device is horizontally fixed, effectively preventing the device from accidentally sliding due to the slippery floor of the cold storage.
[0025] At this time, personnel can place both ends of the semi-cured sheet roll inside the V-shaped limiting plates 14 on the two side supports 13 of the storage rack 2. This facilitates the quick placement of the roll and also allows the V-shaped limiting plates 14 to laterally limit the roll, preventing it from shifting during subsequent operations or storage.
[0026] Then, the operator rotates the external shaft 7 of the storage rack 2. The shaft 7 drives the cam 8 in the mounting hole 4 on one side of the storage rack 2 to rotate synchronously. The cam 8 uses its own eccentric structure to push the arc-shaped seat 9 on the top surface of the U-shaped support plate 5 downward. The U-shaped support plate 5 then compresses the spring 6 on the bottom surface axially downward along the limiting support rod 15 in the mounting hole 4. When the locking block 10 on the outer surface of the cam 8 is engaged in the locking groove 11 on the top surface of the arc-shaped seat 9, the cam 8 and the arc-shaped seat 9 are positioned and fixed, thereby making the bottom surfaces of both ends of the U-shaped support plate 5 in close contact with the ground, forming a stable support for the storage rack 2. After a single prepreg storage rack has achieved stable support through the contact between the U-shaped support plate 5 and the ground, the operator can move another prepreg storage rack to the side of the storage rack 2 and connect one end of the connecting rod 1203 on the newly moved storage rack. The circular insert 1205 is aligned and inserted into the connecting cylinder 1201 on one side of the original storage rack 2. Then, the limiting pin 1202 is inserted from the outer surface of the connecting cylinder 1201 near the top, so that the limiting pin 1202 passes through the second limiting hole 1206 opened on the top surface of the circular insert 1205, thereby limiting and fixing the circular insert 1205 in the connecting cylinder 1201. This facilitates the connection of two prepreg storage racks, so that multiple prepreg storage racks can be connected in series, so that the originally independent individual storage racks 2 can form an integrated storage structure, which greatly improves the anti-tilting ability of the overall storage rack. It can effectively prevent the individual storage rack 2 from shaking or even tipping over due to force imbalance when it is subjected to accidental collisions by forklifts, external force pulling when workers pull out the material rolls, or interference from other operations in the cold storage.
[0027] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A prepreg storage rack anti-tipping device, comprising a base (1), characterized in that: The top surface of the base (1) is provided with two storage racks (2). The base (1) is provided with a spacing adjustment mechanism (3) connected to the two storage racks (2). A mounting hole (4) is provided on one side of the storage rack (2). A U-shaped support plate (5) is provided inside the mounting hole (4). Multiple springs (6) are fixedly installed on the bottom surface of the U-shaped support plate (5). The ends of the multiple springs (6) away from the U-shaped support plate (5) are fixed to the bottom surface of the mounting hole (4). The inside of the mounting hole (4) is located in the U-shaped support. A rotating shaft (7) is rotatably connected above the plate (5). One end of the rotating shaft (7) extends to the outside of the storage rack (2). A cam (8) is fixedly installed on the outer surface of the rotating shaft (7). An arc-shaped seat (9) that contacts the cam (8) is fixedly installed on the top surface of the U-shaped support plate (5) near the middle. A locking block (10) is fixedly installed on the outer surface of the cam (8). A slot (11) corresponding to the locking block (10) is opened on the top surface of the arc-shaped seat (9) near the middle. A connecting mechanism (12) is provided on the side of the storage rack (2).
2. The anti-tipping device for a prepreg storage rack as described in claim 1, characterized in that: The connecting mechanism (12) includes a connecting cylinder (1201), a limiting pin (1202), a connecting rod (1203), a buffer spring (1204), a circular insert (1205), and a second limiting hole (1206). The connecting cylinder (1201) is fixedly installed on one side of the right storage rack (2). The limiting pin (1202) is movably inserted through the connecting cylinder (1201) near the top outer surface. The connecting rod (1203) is fixedly installed on one side of the left storage rack (2). The buffer spring (1204) is provided on the outer surface of the connecting rod (1203). One end of the buffer spring (1204) is fixed to one side of the left storage rack (2). The other end of the buffer spring (1204) is fixedly installed with a circular insert (1205). The circular insert (1205) has a second limiting hole (1206) near the top outer surface.
3. The anti-tipping device for a prepreg storage rack as described in claim 1, characterized in that: The spacing adjustment mechanism (3) includes a bidirectional ball screw (301), a threaded slide (302), a limiting hole (303), and a rotating handwheel (304). The bidirectional ball screw (301) is rotatably connected to the inside of the base (1) through a bearing. Two threaded slides (302) are threadedly connected to the outer surface of the bidirectional ball screw (301). Two limiting holes (303) are opened on the top surface of the base (1). The top end of the threaded slide (302) passes through the inside of the limiting hole (303). The top end of the threaded slide (302) is fixed to the bottom surface of the storage rack (2). One end of the bidirectional ball screw (301) extends to the outside of the base (1). A rotating handwheel (304) is fixedly installed at the end of the bidirectional ball screw (301) extending to the outside of the base (1).
4. The anti-tipping device for a prepreg storage rack as described in claim 1, characterized in that: The storage rack (2) has brackets (13) fixedly installed on its left and right sides by bolts, and a V-shaped limiting plate (14) is fixedly installed on the top surface of the brackets (13).
5. The anti-tipping device for a prepreg storage rack as described in claim 1, characterized in that: The top surface of the U-shaped support plate (5) is movably provided with multiple limiting rods (15), and the top ends of the multiple limiting rods (15) are fixed to the inner top surface of the mounting hole (4), and the bottom ends of the limiting rods (15) are fixed to the inner bottom surface of the mounting hole (4).
6. The anti-tipping device for a prepreg storage rack as described in claim 1, characterized in that: The base (1) has a universal wheel (16) with brake rotatably connected to the bottom surface near the corner, and a foot cup is provided on the bottom surface of the base (1) on the side of the universal wheel (16) with brake.