Scratch prevention tray mechanism for a reflector sheet stack
Patent Information
- Application Number
- CN202522392154.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-11
AI Technical Summary
During the stacking of reflective sheets, traditional pallet mechanisms result in a high rate of scratches on the reflective sheet surface and low pick-and-place efficiency, failing to meet the second-level pick-and-place requirements of automated production lines.
A scratch-resistant tray mechanism was designed, which adopts a tray folding mechanism and a sliding connection structure of the placement plate. Through the cooperation of the placement slot and the return spring, the reflective sheet can be placed independently and quickly removed, avoiding interlayer friction. Single-layer access is achieved through a ring-shaped pull cover.
It effectively prevents scratches on the reflective sheet surface, improves the efficiency of picking and placing, meets the second-level picking and placing requirements of automated production lines, reduces dust adsorption, and improves production efficiency and product quality.
Smart Images
Figure CN224929558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reflective sheet stacking tray technology, specifically a scratch-resistant tray mechanism for stacking reflective sheets. Background Technology
[0002] In fields such as optical display, automotive lighting, and new energy photovoltaics, reflective sheets are core optical components. The smoothness and gloss of their surfaces directly determine the stability of their optical performance. Whether it is a brightness-enhancing reflective sheet in a liquid crystal display (LCD) backlight module or a focusing reflective sheet in an automotive headlight, the surface must be free of scratches, stains, and deformation. Otherwise, it will lead to problems such as decreased light reflectivity, light spot shift, and uneven display, which will seriously affect the quality of the end product. With the rapid development of consumer electronics and new energy industries, the production scale of reflective sheets continues to expand. The efficiency and safety of their storage and transportation have become key bottlenecks restricting production capacity and quality. Currently, the industry generally uses traditional pallet mechanisms for stacking reflective sheets. During stacking, the weight of the upper reflective sheet causes the surfaces of the upper and lower reflective sheets to adhere directly. If slight shaking occurs during handling or transfer, the reflective sheets are prone to lateral sliding. The surface optical coating (such as the aluminum coating or PET substrate coating) will be scratched due to friction. Especially for ultra-thin reflective sheets with a thickness of ≤0.1mm, the scratch incidence rate is as high as 40% or more, directly leading to product scrap. If a layered pallet is used, the reflective sheets must be aligned and stacked one by one when placing them, and removed layer by layer starting from the top layer when taking them out. If the middle layer of reflective sheets needs to be taken out, all the upper reflective sheets must be removed first. The single pick-and-place time is as long as 30-60 seconds, which is far from meeting the efficiency requirements of "second-level pick-and-place" of automated production lines.
[0003] Therefore, a scratch-resistant tray mechanism for stacking reflective sheets is proposed to address the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a scratch-resistant tray mechanism for stacking reflective sheets, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A scratch-resistant tray mechanism for stacked reflective sheets includes a tray base, a protective frame fixedly connected to the top of the tray base, and a tray folding mechanism provided inside the protective frame. The tray folding mechanism includes a slide groove, a slider is slidably engaged inside the slide groove, a placement plate is fixedly connected to the outside of the slider, a placement groove is opened inside the placement plate, a movable tube is fixedly connected to the inner wall of the slide groove, a moving rod is slidably engaged inside the movable tube, and a return spring is sleeved on the moving rod.
[0006] As a further optimization of this utility model, the outer side of the tray base is fixedly connected to a mounting plate, and the outer side of the placement plate is fixedly connected to an annular pull cover.
[0007] As a further optimization of this utility model, the grooves are symmetrically and evenly distributed on both sides of the inner wall of the protective frame, and the placement plate is slidably connected to the inside of the protective frame by a slider.
[0008] As a further optimization of this utility model, the placement plates are tightly fitted together and evenly distributed inside the protective frame.
[0009] As a further optimization of this utility model, the movable tube is located inside the slide groove, and the movable tube and the slider are on the same horizontal plane.
[0010] As a further optimization of this utility model, the end of the moving rod away from the movable tube is fixedly connected to the outside of the slider, and the two ends of the return spring are respectively located between the movable tube and the slider.
[0011] As a further optimization of this utility model, the mounting plates are symmetrically distributed on the outer side of the tray base, and the annular pull cover is located on the outer side of the protective frame.
[0012] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the independent placement plate and placement slot design in the tray folding mechanism allows the reflector to be placed separately in the placement slot, avoiding direct contact and friction between the reflectors when stacked. At the same time, the sliding connection structure between the placement plate and the protective frame, together with the reset assembly consisting of the movable tube, the moving rod and the reset spring, allows the placement plate to be easily moved out of the inside of the energy storage cabinet protective frame, achieving the effect of quick prevention and removal. Furthermore, the placement plates fit tightly together, preventing dust from adhering to the surface of the reflector. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the placement plate of this utility model when it is opened; Figure 2 This is a schematic diagram of the structure of this utility model when it is closed; Figure 3 This is a side sectional view of the protective frame of this utility model; Figure 4 This is a schematic diagram of the structure between the placement plates of this utility model; Figure 5 This is a schematic diagram of the structure of the outer side of the placement plate of this utility model; Figure 6 This utility model Figure 5 Enlarged view of the structure at point A in the middle.
[0014] In the diagram: 1. Pallet base; 11. Mounting plate; 2. Protective frame; 3. Pallet folding mechanism; 31. Slide; 32. Slider; 33. Placement plate; 34. Placement slot; 35. Annular pull cover; 36. Movable tube; 37. Moving rod; 38. Return spring. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0017] Please see Figures 1-6 This utility model provides a technical solution: A scratch-resistant tray mechanism for stacked reflective sheets includes a tray base 1, a protective frame 2 fixedly connected to the top of the tray base 1, and a tray folding mechanism 3 provided inside the protective frame 2. The tray folding mechanism 3 includes a slide 31, a slider 32 is slidably engaged inside the slide 31, a placement plate 33 is fixedly connected to the outside of the slider 32, a placement groove 34 is opened inside the placement plate 33, a movable tube 36 is fixedly connected to the inner wall of the slide 31, a moving rod 37 is slidably engaged inside the movable tube 36, and a return spring 38 is sleeved on the moving rod 37.
[0018] It should be noted that: the slide grooves 31 are symmetrically and evenly distributed in the inner walls of both sides of the protective frame 2; the placement plates 33 are slidably connected to the inside of the protective frame 2 through the sliders 32; the placement plates 33 are tightly fitted together and evenly distributed inside the protective frame 2; the movable tube 36 is located inside the slide grooves 31; and the movable tube 36 and the sliders 32 are on the same horizontal plane; the end of the moving rod 37 away from the movable tube 36 is fixedly connected to the outside of the sliders 32; and the two ends of the return spring 38 are located between the movable tube 36 and the sliders 32, respectively.
[0019] Furthermore, the pallet base 1 is not a simple flat structure; its bottom needs to be reinforced with a grid-like structure. The thickness of the reinforcing ribs is 1.2-1.5 times the thickness of the base, and they are evenly distributed along the length of the base at intervals of 15-20cm. The purpose is to improve the load-bearing capacity of the base. Specifically: the slide groove 31 and the slider 32 are fitted with a small clearance to ensure smooth sliding and prevent the placement plate 33 from shaking. The inner wall of the slide groove 31 is lubricated to reduce friction loss and extend service life. The upper and lower sides of the slider 32 are provided with protruding blocks. When the placement plate 33 is completely pulled out, the blocks abut against the end of the slide groove 31 to prevent the slider 32 from falling off and ensure operational safety.
[0020] Meanwhile: The placement plate 33 is made of high-rigidity, low-friction material to prevent bending after bearing the reflector. The upper and lower surfaces are polished to reduce friction with adjacent parts and prevent scratching the edge of the reflector. The wall of the placement groove 34 is rounded to prevent sharp edges from scratching the reflector. A buffer pad is laid at the bottom of the groove to absorb vertical vibration. At the same time, the micro-protrusions on the buffer pad reduce the contact area of the reflector and prevent displacement and adhesion.
[0021] As a further implementation of this solution, a mounting plate 11 is fixedly connected to the outer side of the tray base 1, and an annular pull cover 35 is fixedly connected to the outer side of the placement plate 33.
[0022] It should be noted that the mounting plates 11 are symmetrically distributed on the outside of the pallet base 1, and the annular pull cover 35 is located on the outside of the protective frame 2. The mounting plates 11 symmetrically distributed on the outside of the pallet base 1 can be fixed to automated equipment, such as conveyor belts or robotic arm connecting seats, by bolts or buckles, so as to achieve precise positioning of the mechanism in the production line and lay the foundation for subsequent automated picking and placing of reflective sheets.
[0023] Furthermore, the height of the mounting plate 11 must be consistent with the thickness of the pallet base 1 to ensure that when pallets are stacked, the upper pallet base 1 can stably fit the mounting plate 11 of the lower pallet, thus preventing the overall structure from tilting after stacking.
[0024] Workflow: The tray base 1 serves as the overall support base, and the protective frame 2 fixed on its top defines the core space for stacking reflective sheets, preventing the reflective sheets from slipping off the side. The symmetrical and evenly distributed sliding grooves 31 on both sides of the inner wall of the protective frame 2 provide a precise track for the subsequent sliding of the placement plate 33, ensuring that the movement direction of each placement plate 33 is consistent. The placement plate 33 is slidably engaged with the slide groove 31 by the outer slider 32, and the adjacent placement plates 33 are tightly fitted, maximizing the use of the internal space of the protective frame 2 and preventing external dust from entering the interior of the placement groove 34. At the same time, the movable tube 36 in the slide groove 31 is on the same horizontal plane as the slider 32. One end of the moving rod 37 in the movable tube 36 is fixed to the slider 32, and the other end is nested in the movable tube 36. The two ends of the return spring 38 sleeved on the moving rod 37 abut against the movable tube 36 and the slider 32 respectively. At this time, the return spring 38 is in a naturally extended state, which stably limits the placement plate 33 to the initial position. The annular pull cover 35 is fixed to the outside of the placement plate 33 and extends to the outside of the protective frame 2. The operator holds the annular pull cover 35 and pulls it outward, or the robotic arm clamps the annular pull cover 35 and applies a lateral pulling force. At this time, the placement plate 33 drives the slider 32 to slide along the slide groove 31 to the outside of the protective frame 2. When the slider 32 slides, it synchronously drives the fixedly connected moving rod 37 to extend outward along the inner wall of the movable tube 36. The return spring 38 is stretched due to the increased distance between the slider 32 and the movable tube 36, storing elastic potential energy. As the placement plate 33 is pulled out, the placement groove 34 inside it is fully exposed. The size of the placement groove 34 matches the reflective sheet. If it fits the ultra-thin thickness and large size of the reflective sheet, the operator or robotic arm can smoothly place the reflective sheet into the placement groove 34. The groove wall of the placement groove 34 forms a circumferential limit on the reflective sheet to prevent the reflective sheet from shifting during placement. After the reflector is placed in the placement slot 34 of the single placement plate 33, the annular pull cover 35 is released, the return spring 38 releases its elastic potential energy, pushes the slider 32 to slide in the opposite direction along the slide groove 31, and drives the placement plate 33 to return to a state of close contact with the adjacent placement plate 33, thus completing the placement of a single layer of reflector; by repeating the above pull-place-reset action, reflectors can be placed in the placement slots 34 of each layer of placement plate 33 in sequence, realizing the stacking of reflectors, and each layer of reflectors is separated by the placement plate 33, completely avoiding direct contact and friction between layers; When a certain layer of reflective sheet needs to be retrieved, simply pull the annular pull cover 35 on the outside of the corresponding placement plate 33 to make the placement plate 33 of that layer pull the reflective sheet out of the protective frame 2. The operator or robotic arm can directly retrieve the reflective sheet without touching the placement plates 33 and reflective sheets of other layers, thus avoiding accidental contact and scratching of adjacent reflective sheets during the retrieval process. When the mechanism is idle, all the placement plates 33 can be reset to a tight fit by the elastic force of the return spring 38. At this time, the overall size of the mechanism is compact, reducing the storage space occupied. If it needs to be idle for a long time, multiple pallet mechanisms can be stacked by mounting plates 11 to further improve space utilization.
[0025] 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 scratch-resistant tray mechanism for stacked reflective sheets, comprising a tray base (1), characterized in that: The top of the tray base (1) is fixedly connected to a protective frame (2), and a tray folding mechanism (3) is provided inside the protective frame (2). The tray folding mechanism (3) includes a slide groove (31), a slider (32) is slidably engaged inside the slide groove (31), a placement plate (33) is fixedly connected to the outside of the slider (32), a placement groove (34) is opened inside the placement plate (33), a movable tube (36) is fixedly connected to the inner wall of the slide groove (31), a moving rod (37) is slidably engaged inside the movable tube (36), and a return spring (38) is sleeved on the moving rod (37).
2. The anti-scratch tray mechanism for stacking reflective sheets according to claim 1, characterized in that: An mounting plate (11) is fixedly connected to the outside of the tray base (1), and an annular pull cover (35) is fixedly connected to the outside of the placement plate (33).
3. The anti-scratch tray mechanism for stacking reflective sheets according to claim 1, characterized in that: The grooves (31) are symmetrically and evenly distributed on both sides of the inner wall of the protective frame (2), and the placement plate (33) is slidably connected to the inside of the protective frame (2) by the slider (32).
4. The anti-scratch tray mechanism for stacking reflective sheets according to claim 1, characterized in that: The placement plates (33) are tightly fitted together, and the placement plates (33) are evenly distributed inside the protective frame (2).
5. The anti-scratch tray mechanism for stacking reflective sheets according to claim 1, characterized in that: The movable tube (36) is located inside the slide groove (31), and the movable tube (36) and the slider (32) are on the same horizontal plane.
6. The anti-scratch tray mechanism for stacking reflective sheets according to claim 1, characterized in that: The end of the moving rod (37) away from the movable tube (36) is fixedly connected to the outside of the slider (32), and the two ends of the return spring (38) are located between the movable tube (36) and the slider (32).
7. The anti-scratch tray mechanism for stacking reflective sheets according to claim 2, characterized in that: The mounting plates (11) are symmetrically distributed on the outside of the tray base (1), and the annular pull cover (35) is located on the outside of the protective frame (2).