An adjustable shock-absorbing logistics transport box based on 3D printing integrated molding

Abstract

This utility model proposes an adjustable shock-absorbing logistics transport box based on 3D printing integrated molding, including a logistics box body, a logistics box cover, an electronic tag, and dividers. The adjustable shock-absorbing logistics transport box facilitates the handling and placement of parts. The inner wall of the logistics box is provided with cylindrical grooves and shock-absorbing textures. This structure allows for the flexible installation of multiple dividers inside the logistics box according to the size of the items. The dividers are telescopic structures, which can change their length by stretching to a certain limit. This structure is beneficial for adapting to the distance between different holes.

Description

Technical Field

[0001] This utility model proposes an adjustable shock-absorbing logistics transport box based on 3D printing integrated molding, which relates to the field of logistics box technology. Background Technology

[0002] Logistics boxes, as multifunctional containers, have been widely used in various industries such as machinery, automobiles, home appliances, light industry, and electronics. Due to their ease of cleaning, flexible parts turnover, neat stacking, and management, they play a vital role in the transportation, distribution, storage, and processing stages of factory logistics. With the rise of emerging fields such as smart warehousing, e-commerce logistics, medical cold chain, and drone transportation, and with logistics management increasingly valued by enterprises, logistics boxes facilitate the standardization and integrated management of logistics containers, becoming an essential tool for modern logistics management in production and distribution companies.

[0003] Currently, existing logistics boxes used for transportation suffer from the following problems: Traditional logistics boxes, due to their fixed storage space, cannot be adjusted according to the size of the items; traditional injection molding cannot achieve localized control of material filling density; traditional logistics boxes require multiple processes and numerous hardware components for assembly, leading to accumulated errors and unstable shock absorption performance; the divider adjustment structure relies on metal slide rails or bolts for fixation, resulting in heavy weight and poor flexibility. Furthermore, during transportation, bumps and jolting can damage the contents, failing to meet the diverse needs of the market. Utility Model Content

[0004] In view of this, this utility model proposes an adjustable shock-absorbing logistics transport box based on 3D printing integrated molding, which greatly simplifies the manufacturing process of the logistics box, realizes integrated and efficient molding, minimizes the processing steps of the box, and also appropriately reduces the weight of the box, material cost and processing cost.

[0005] An adjustable shock-absorbing logistics transport box based on 3D printing integrated molding is characterized by comprising a logistics box body, a logistics box top cover, an electronic tag, a partition, a cylindrical groove, a mortise and tenon structure, an outer shell, a face paper layer, a release paper, self-adhesive, and hot melt adhesive.

[0006] The logistics box body, the mortise and tenon structure, the cylindrical groove, and the partition plate are all 3D printed as a single unit.

[0007] Furthermore, the adjustable shock-absorbing logistics transport box includes a shock-absorbing structure, which includes a cylindrical groove and anti-vibration patterns. An arc-shaped elastic plate is installed inside the shock-absorbing structure, and the bottom end of the arc-shaped elastic plate is connected to the outer wall of the rubber block.

[0008] Furthermore, the mortise and tenon structure is a retractable spring structure; it contracts to buffer vibration when compressed and locks the box position after rebounding.

[0009] Furthermore, the partition plate is a telescopic structure, and the partition plate adopts a 3D printed tenon-and-mortise telescopic unit, each unit containing bidirectional locking teeth; the two ends of the partition plate are designed with 3D printed special-shaped plugs to form an anti-rotation fit with the inner wall groove.

[0010] Furthermore, anti-slip threads are added to the inner wall of the cylindrical groove.

[0011] Furthermore, the electronic tag includes a tag slot, elastic buckles, and a scratch-resistant coating. Rectangular tag slots are 3D printed at the four corners of the outer side of the logistics box. 3D printed elastic buckles are set at the bottom of the slots. The buckles have a "U" shape and barbs at the opening. After the RFID tag is embedded in the tag slot, it is fixed by the barb buckles and the surface is covered with a 3D printed scratch-resistant coating.

[0012] Furthermore, a foldable X-shaped reinforcing frame is added to the top of the logistics box. The foldable X-shaped reinforcement consists of two sets of cross support rods. The two ends of the support rods are equipped with quick buckles that match and lock with the trapezoidal slots pre-set on the top of the logistics box.

[0013] Furthermore, a self-locking buckle manufactured using 3D printing technology is installed between the body of the logistics box and the top cover of the logistics box.

[0014] This utility model has the following advantages:

[0015] 1) This utility model uses a retractable partition plate, which can be flexibly adjusted to the size of the items to be transported. It is connected to the partition plate through a cylindrical groove inside the logistics box, and the shock-absorbing texture on the inner wall of the logistics box can fix the transported items in place.

[0016] 2) The mortise and tenon structure adopts multi-material printing: PLA body (hardness 85D) and TPU contact surface (hardness 60A) are printed simultaneously to improve wear resistance and cushioning; the mortise and tenon has an internal elastic layer to distribute vibration more evenly and can be freely spliced ​​into shelves / compartments to adapt to integrated warehousing, sorting and transportation scenarios.

[0017] 3) Optimized Buffer Mechanism: Besides the 3D-printed limiting blocks, the curved elastic plate is designed as a multi-segment structure, with each segment manufactured separately using 3D printing and then connected using a special splicing process. For example, a concave-convex fitting structure is designed at the joints of each curved elastic plate segment. This splicing structure is integrally formed by 3D printing. During splicing, only the concave and convex parts need to be precisely aligned. Utilizing the excellent forming precision and stability of 3D printing materials, a tight fit is ensured at the joints without affecting the overall elasticity and shock absorption performance. This design not only leverages the advantages of 3D printing in manufacturing complex structures but also reduces space occupation during transportation and storage, facilitating later maintenance and replacement.

[0018] 4) Divider Panel Assembly Design: The retractable divider panel is designed as a series of modular components. Each module is 3D printed, and the modules are connected using a plug-in or snap-fit ​​assembly structure, also formed as a single 3D printed unit. This assembly method makes the divider panel more flexible in adapting to different hole distances, and when a module is damaged, it can be replaced individually without scrapping the entire divider panel, thus improving the service life and economy of the logistics transport box.

[0019] 5) Fabrication of the Inner Wall Texture of Logistics Boxes: The shock-absorbing texture on the inner wall of logistics boxes can be created using 3D printing spraying technology. Depending on the specific transportation needs of the goods, the thickness, texture shape, and distribution density of the spraying can be controlled using 3D printing equipment. For example, for easily rolling items, a deeper and denser anti-slip texture can be designed; for vibration-sensitive items such as precision instruments, a rubber-like texture with elastic cushioning can be created. Through precise control of 3D printing, the texture adheres better to the surface of the item, enhancing its fixation and shock absorption effects.

[0020] 6) Reinforcing Rib Structure of the Logistics Box: Inside the logistics box, a complex reinforcing rib structure is designed based on mechanical principles. These ribs are manufactured integrally with the logistics box using 3D printing technology. The shape and layout of the ribs can be customized according to the size of the logistics box, its load-bearing capacity, and the characteristics of the transported goods. Through precise control of the rib thickness, height, and angle via 3D printing, the structural strength and stability of the logistics box are significantly improved without adding excessive weight, enabling it to better adapt to various transportation environments. Attached Figure Description

[0021] Figure 1 This is a three-dimensional internal and external structural unfolding diagram of this utility model.

[0022] Figure 2 This is a top sectional view of the present invention.

[0023] Figure 3 This is a top view of the partition plate of this utility model.

[0024] Figure 4 This is a front view of the partition plate of this utility model.

[0025] Figure 5 This is a partial detail view of the electronic tag of this utility model.

[0026] Figure 6 This is a schematic diagram of the top reinforcement frame of this utility model.

[0027] In the diagram, structure 1-logistics box body, 2-logistics box top cover, 3-electronic tag, 4-divider, 5-cylindrical groove, 6-mortise and tenon structure, 3.1-outer shell, 3.2-face paper layer, 3.3-release paper, 3.4-self-adhesive, 3.5-hot melt adhesive. Detailed Implementation

[0028] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations 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.

[0031] like Figures 1 to 6 As shown, an adjustable shock-absorbing logistics transport box based on 3D printing integral molding is characterized by comprising the following:

[0032] An adjustable shock-absorbing logistics transport box based on 3D printing integrated molding is characterized by comprising a logistics box body 1, a logistics box top cover 2, an electronic tag 3, a partition plate 4, a cylindrical groove 5, a tenon and mortise structure 6, an outer shell, a face paper layer, a release paper, self-adhesive and hot melt adhesive.

[0033] The logistics box body 1, the mortise and tenon structure 6, the cylindrical groove 5, and the partition plate 4 are all 3D printed as a single unit.

[0034] In one embodiment of this utility model, the adjustable shock-absorbing logistics transport box includes a shock-absorbing structure, which includes a cylindrical groove 5 and anti-vibration patterns. An arc-shaped elastic plate is installed inside the shock-absorbing structure, and the bottom end of the arc-shaped elastic plate is connected to the outer wall of the rubber block.

[0035] In one embodiment of this utility model, the tenon and mortise structure 6 is a retractable spring structure; it contracts to buffer vibration when compressed and locks the position of the box after rebounding.

[0036] In one embodiment of this utility model, the partition plate 4 is a telescopic structure. The partition plate 4 adopts a 3D printed tenon-and-mortise telescopic unit, and each unit contains bidirectional locking teeth. The two ends of the partition plate 4 are designed as 3D printed special-shaped plugs, which form an anti-rotation fit with the inner wall groove.

[0037] In one embodiment of this utility model, anti-slip threads are added to the inner wall of the cylindrical groove.

[0038] In one embodiment of this utility model, the electronic tag 3 includes a tag slot, an elastic buckle, and a scratch-resistant coating. Rectangular tag slots are 3D printed at the four corners of the outer side of the logistics box. 3D printed elastic buckles are set at the bottom of the slots. The buckles have a "U" shaped structure and barbs at the opening. After the RFID tag is embedded in the tag slot, it is fixed by the barb buckle and the surface is covered with a 3D printed scratch-resistant coating.

[0039] In one embodiment of this utility model, a foldable X-shaped reinforcing frame is added to the top of the logistics box body 1. The foldable X-shaped reinforcing frame is composed of two sets of cross support rods. The two ends of the support rods are provided with quick buckles, which match and lock with the trapezoidal slots pre-set on the top of the logistics box body 1.

[0040] In one embodiment of this utility model, a one-piece self-locking buckle manufactured by 3D printing integrated molding technology is provided between the logistics box body 1 and the logistics box cover 2.

[0041] In addition to the above embodiments, the present invention also provides the following embodiments:

[0042] The mortise and tenon structure 6 leverages the lightweight design advantages of 3D printing, reducing PLA material usage while maintaining impact resistance. Simultaneously, it achieves a gradient hardness distribution through adjustable printing parameters (e.g., 80% infill density), forming a progressive buffer with the rubber block. One-piece 3D printing eliminates assembly errors; the pre-drilled mounting grooves in the rubber block can be achieved through multi-material printing (e.g., PLA+TPU composite) or by later embedding vulcanized rubber. Based on its significant cushioning and stabilizing effect during cargo transportation, the mortise and tenon structure 6, with its flexible, one-piece box structure, buffers and offsets impact forces, achieving flexible collisions between boxes.

[0043] The cylindrical groove 5 adopts a variable diameter design (narrower at the top and wider at the bottom), and the precision advantage of 3D printing (±0.1mm) ensures the frictional adaptability when the partition plate is inserted and removed; the inner wall of the groove is added with anti-slip threads (0.5mm pitch), which are directly generated by the printing path and do not require post-processing; the shock-absorbing texture of the inner wall is modeled according to the micro-texture of shark skin (V-shaped rib array), and the complex curved surface forming capability of 3D printing is used to achieve the dual functions of shock absorption and flow guidance. The printing layer thickness is set to 0.15mm to ensure surface quality.

[0044] The positioning structure of the electronic tag 3 includes a tag slot, elastic buckles, and a scratch-resistant coating. Rectangular tag slots (20mm long × 15mm wide × 3mm deep) are 3D printed at the four corners of the outer side of the logistics box. 3D printed elastic buckles (material TPU70A, 1mm thick) are set at the bottom of the slots. The buckles have a "U" shaped structure and a barb (0.5mm deep) at the opening. After the RFID tag (model EPC Gen2) is embedded in the tag slot, it is fixed by the barb buckle. The surface is covered with a 3D printed scratch-resistant coating (material PLA + nano-ceramic particles, 0.2mm thick). The surface of the coating is made with a brushed process to create an anti-slip texture (texture depth 0.1mm).

[0045] This structure utilizes the high-precision molding capabilities of 3D printing to integrate the label slot with the box body, avoiding the risk of label detachment associated with traditional adhesive methods. The flexible TPU clips ensure both flexibility and secure installation, while the scratch-resistant coating enhances wear resistance (reducing the coefficient of friction by 30%) through nano-ceramic particles, and the brushed texture disperses external impacts. The label slot edges are designed with a 45° chamfer (1mm radius) to prevent label damage from collisions during transportation.

[0046] The partition plate 4 is a stretchable structure, which can change its length by stretching to a certain limit. This structure is beneficial for adapting to the distance between different holes. The partition plate is manufactured by 3D printing.

[0047] The partition plate 4 uses 3D printed retractable units, each unit containing bidirectional teeth (tooth pitch 2mm). During printing, 100% solid filling is used to ensure the strength of the teeth. The two ends of the partition plate are designed with 3D printed special-shaped plugs (such as star-shaped cross-sections) to form an anti-rotation fit with the inner wall groove. The plug surface is set with a printing compensation amount of 0.2mm to adapt to different wear conditions.

[0048] A foldable X-shaped reinforcing frame is added to the top of the logistics box, manufactured using 3D printing integrated molding technology. This structure consists of two sets of intersecting support rods, with quick-release buckles at both ends that match and lock into pre-installed trapezoidal slots on the top of the box. The X-shaped reinforcing frame is manufactured using 3D printing, with 100% solid filler used during printing to ensure its rigidity.

[0049] A one-piece self-locking latch, manufactured using 3D printing technology, is installed between the box body 1 and the box lid 2. This structure features a one-piece mortise track on the side of the box body, with inclined ratchet teeth (1.2mm high, 30° angle) on the inner side. An elastic cantilever beam (15mm long, 1.5mm thick) extends from the lid, ending in a wedge-shaped latch head (80 DPLA hardness). When locked, the latch head engages with the ratchet teeth, forming a self-locking angle α=8° to prevent reverse disengagement. The cantilever beam root has a 100% fill density, tapering to 60% at the tip, achieving a combination of flexible deformation and rigid locking. The latch head contact surface is printed with fish-scale-like micro-textures (0.2mm deep) to increase the coefficient of friction to 0.7. When closed, the lid presses down, forcing the cantilever beam to bend (maximum deformation 3mm), and then the latch head slides in along the inclined surface of the ratchet teeth. Energy consumption: the TPU elastic layer absorbs 60% of the downward pressure, preventing brittle fracture of the PLA.

[0050] The workflow of this utility model is as follows:

[0051] In embodiments of this utility model, when using 3D printing for integrated molding, the following parameters are included:

[0052]

[0053] The filling mesh consists of grid lines, and the layer thickness and density can be adjusted according to the actual application scenario. For example, when transporting precision instruments, the TPU hardness (90A) and filling density can be appropriately increased to reduce low-frequency vibration; when transporting fragile items, the hardness (60A) and honeycomb hollow structure can be reduced to absorb high-frequency impact; when stacking and storing, the tenon and mortise elastic layer automatically adapts to the pressure of the upper box to avoid resonance.

[0054] Then, multi-material printing begins using a dual-nozzle FDM printer (such as the Ultimaker S5), which supports rapid switching between PLA and TPU materials. The printing process is as follows: first, print the PLA frame, pausing at the mortise and tenon joint height; switch to the TPU nozzle to print the mortise and tenon contact surface (1.5mm thick); continue with the PLA layer covering the TPU to form an interlocking structure (interface bonding strength ≥8MPa).

[0055] When printing the curved elastic plate in the suspended structure, a support material (PVA water-soluble type) is used, with an inclination angle ≤45°; the anti-vibration texture can be formed by variable layer thickness printing (0.1mm→0.2mm), directly generating shark skin texture.

[0056] In the post-processing stage, the support is removed: the PVA support is dissolved by soaking in warm water (50℃) (takes 2 hours), or the PLA support is removed with pliers. Then, the surface is treated: the tenon and mortise contact surfaces are lightly sanded with sandpaper (600 grit) to ensure smooth sliding (roughness Ra≤3.2μm).

[0057] Apply a PLA-reinforced coating to the anti-vibration textured areas (optional, to improve abrasion resistance).

[0058] Finally, functional tests are conducted. The divider is inserted into the box to test its compatibility (insertion and extraction force of 5-10N is ideal); the boxes are stacked to check the locking status of the tenons and mortises (TPU rebound time should be <0.5s). Then it is ready for use in finished product packaging.

[0059] The above are preferred embodiments of this utility model. Any changes made to the technical solution of this utility model that do not exceed the scope of the technical solution of this utility model shall be protected within the scope of this utility model.

Claims

1. An adjustable shock-absorbing logistics transport box based on 3D printing integrated molding, characterized in that, This includes the box body, box lid, electronic tag, divider, cylindrical groove, mortise and tenon structure, outer shell, face paper layer, release paper, self-adhesive and hot melt adhesive; The logistics box body, the mortise and tenon structure, the cylindrical groove, and the partition plate are all 3D printed as a single unit.

2. The adjustable shock-absorbing logistics transport box based on 3D printing integrated molding as described in claim 1, characterized in that, The adjustable shock-absorbing logistics transport box includes a shock-absorbing structure, which includes a cylindrical groove and anti-vibration patterns. An arc-shaped elastic plate is installed inside the shock-absorbing structure, and the bottom end of the arc-shaped elastic plate is connected to the outer wall of the rubber block.

3. The adjustable shock-absorbing logistics transport box based on 3D printing integrated molding as described in claim 1, characterized in that, The mortise and tenon structure is a retractable spring structure; it contracts to buffer vibration when compressed and locks the box position after rebounding.

4. The adjustable shock-absorbing logistics transport box based on 3D printing integrated molding as described in claim 1, characterized in that, The partition plate is a telescopic structure, and the partition plate adopts a 3D printed tenon-and-mortise telescopic unit, each unit containing bidirectional locking teeth; the two ends of the partition plate are designed with 3D printed special-shaped plugs to form an anti-rotation fit with the inner wall groove.

5. The adjustable shock-absorbing logistics transport box based on 3D printing integrated molding as described in claim 1, characterized in that, The inner wall of the cylindrical groove is reinforced with anti-slip threads.

6. The adjustable shock-absorbing logistics transport box based on 3D printing integrated molding as described in claim 1, characterized in that, The electronic tag includes a tag slot, elastic buckles, and a scratch-resistant coating. Rectangular tag slots are 3D printed at the four corners of the outer side of the logistics box. 3D printed elastic buckles are set at the bottom of the slots. The buckles have a "U" shape and barbs at the opening. After the RFID tag is embedded in the tag slot, it is fixed by the barb buckles and the surface is covered with a 3D printed scratch-resistant coating.

7. The adjustable shock-absorbing logistics transport box based on 3D printing integrated molding as described in claim 1, characterized in that, A foldable X-shaped reinforcing frame is added to the top of the logistics box. The foldable X-shaped reinforcement consists of two sets of cross support rods. The two ends of the support rods are equipped with quick buckles that match and lock with the trapezoidal slots pre-set on the top of the logistics box.

8. The adjustable shock-absorbing logistics transport box based on 3D printing integrated molding as described in claim 1, characterized in that, A one-piece self-locking buckle manufactured using 3D printing technology is installed between the body of the logistics box and the top cover of the logistics box.

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