Anti-adsorption sorting tray, turnover sorting trolley and sorting machine

Abstract

The utility model discloses a kind of anti-absorption sorting tray and turn over tray sorting car and sorting machine.The anti-absorption sorting tray includes tray main body, and the anti-absorption structure of tray main body upper surface is set;The anti-absorption structure includes long strip shape's ridge structure sequentially spaced arrangement;The height of the ridge structure is greater than or equal to 2mm.The utility model is by additionally setting the ridge structure of dense on the sorting tray top surface of turn over tray sorting machine, avoid vacuum adsorption force between parcel and tray, so that electrostatic adsorption force between tray and parcel reduces, to reduce the glide resistance of light thin plastic parcel, so that light thin plastic parcel can smoothly parcel down.In addition, the ridge structure in the utility model can pierce the water film on sorting tray, so that the contact point between ridge structure and parcel under humid environment still keeps dry, reduce the resistance of water surface tension to parcel.

Description

Technical Field

[0001] This utility model belongs to the field of logistics sorting technology, specifically relating to an anti-adsorption sorting pallet and a flip-top sorting cart. Background Technology

[0002] Tilting sorters use a tilting and flipping mechanism to slide and output goods, enabling automated sorting of small batches of packages in confined spaces, and are commonly used for sorting lightweight packages. However, conventional tilting sorters' trays can exhibit adhesive forces on light-weight plastic packages, especially those that are wet. This increases the sliding resistance of the plastic packages, causing them to slide slowly or even fail to slide down after the tray is tilted. The main reasons for this adhesive force and high sliding resistance are as follows:

[0003] (1) Electrostatic adsorption: In a dry environment, static electricity is easily generated between the plastic package and the flip tray (mostly made of painted metal or ABS plastic). The static electricity will cause electrostatic attraction between the plastic package and the flip tray.

[0004] (2) Water film adhesion: In humid environments, rain, or when goods are wet, water films can easily form between pallets or goods. For plastic wrapping, the surface tension of the water film will cause the plastic bag to adhere tightly to the pallet surface, forming an adhesion effect and significantly increasing the coefficient of friction. For cardboard wrapping, it will deform after absorbing water, increasing the actual contact area with the pallet. Water will also enhance the molecular adhesion between the paper fibers and the pallet surface, leading to an increase in the coefficient of friction.

[0005] (3) Surface energy matching: High surface energy pallet materials (such as certain metals and untreated plastics) are prone to strong van der Waals forces adsorption with packages (especially plastic packages), which in turn creates greater sliding resistance. Summary of the Invention

[0006] The purpose of this utility model is to provide an anti-adsorption sorting tray, a flip-top sorting cart, and a sorting machine.

[0007] In a first aspect, this utility model provides an anti-adsorption sorting tray, including a tray body and an anti-adsorption structure disposed on the upper surface of the tray body; the anti-adsorption structure includes elongated ridge structures arranged at intervals in sequence; the height of the ridge structure is greater than or equal to 2mm.

[0008] Preferably, the length extension direction of each of the ridge structures is perpendicular to the flipping axis of the sorting tray.

[0009] Preferably, the longitudinal section of the convex ridge structure is trapezoidal, wider at the bottom and narrower at the top.

[0010] Preferably, the top width of the ridge structure is 0.5mm to 2mm.

[0011] Preferably, the height of the ridge structure is 2mm to 4mm; a groove is formed between two adjacent ridge structures, and the width of the groove is 5mm to 30mm.

[0012] Preferably, the surface roughness Ra of the ridge structure is 1.6 μm to 3.2 μm.

[0013] Preferably, the ridge structure is an integral part of the tray body.

[0014] Preferably, the pallet body is provided with a flange structure (1-1) that slopes upward from the inside out.

[0015] Secondly, this utility model provides a tilting sorting vehicle, which includes a trolley body and a tilting part; the trolley body includes a frame, and support wheels and guide wheels installed at the bottom of the frame; the bottom of the tilting part is rotatably connected to the top of the frame and locked by a locking structure; the top of the tilting part is equipped with the aforementioned anti-adsorption sorting tray.

[0016] Thirdly, this utility model provides a tilting sorting machine, which includes a frame, a tilting sorting cart and a circular track; the circular track is installed on the frame; the aforementioned tilting sorting carts are arranged sequentially and connected on the circular track; the frames of two adjacent tilting sorting carts are rotatably connected.

[0017] The present invention has the following beneficial effects.

[0018] This invention adds a dense ridge structure to the top surface of the sorting tray of the flip-top sorting machine to avoid vacuum adsorption between the package and the tray, thereby reducing the electrostatic adsorption between the tray and the package, thus reducing the sliding resistance of thin plastic packages and allowing them to be unloaded smoothly.

[0019] The ridge structure in this invention can pierce the water film on the sorting tray, so that the contact point between the ridge structure and the package remains dry in a humid environment, reducing the surface tension of water on the package, and also reducing the absorption of water from the tray by absorbent materials such as cardboard boxes.

[0020] In this embodiment, the grooves formed between adjacent ridge structures can act as a guide, allowing water accumulated on the tray to flow out smoothly when the tray is tilted down. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of Embodiment 1 of the present utility model.

[0022] Figure 2This is a side view of Embodiment 1 of the present invention.

[0023] Figure 3 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0024] Reference numerals: 1. Pallet body; 1-1. Flanged structure; 1-2. Recessed connection structure; 2. Raised ridge structure; 3. Groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figure 1 and Figure 2 As shown, an anti-adsorption sorting pallet includes a pallet body 1 and an anti-adsorption structure disposed on the upper surface of the pallet body 1. The middle area of ​​the pallet body 1 is horizontal, and the surrounding area is provided with flange structures 1-1 that slope upward from the inside to the outside, so that the pallet body 1 forms a concave bearing structure.

[0028] The anti-adhesion structure includes elongated, parallel, and spaced-apart ridge structures 2. The ridge structures 2 are integrally formed with the pallet body 1. A groove 3 is formed between any two adjacent ridge structures 2. The length extension direction of each ridge structure 2 is perpendicular to the rotation axis of the pallet when it tilts, allowing goods to slide down along the length extension direction of the ridge structure 2 when the pallet tilts and falls.

[0029] The ridge structure 2 in the anti-adsorption structure is densely arranged to reduce the sliding resistance between the plastic package and the tray by reducing adhesion, draining water to reduce adhesion, and reducing the effective contact area.

[0030] In some embodiments, the longitudinal section of the ridge structure 2 is a trapezoidal cross-section, wider at the bottom and narrower at the top. In other embodiments, the top of the ridge structure 2 is arc-shaped. The trapezoidal or arc-shaped cross-section of the ridge structure 2 can avoid the presence of sharp edges, delay the wear of the ridge structure 2, and prevent the ridge structure 2 from damaging the goods.

[0031] In some embodiments, the height of the ridge structure 2 should be sufficient to penetrate a water film of a desired thickness, forming an effective drainage channel so that the top of the ridge structure 2 remains dry. Therefore, the height of the ridge structure 2 is preferably between 2mm and 4mm. If the height of the ridge structure 2 is too small, it cannot penetrate the water film; if the height of the ridge structure 2 is too large, it increases manufacturing difficulty, reduces the structural strength of the ridge structure 2, and may affect the stability of goods placement.

[0032] In some embodiments, the width of the ridge structure 2 should be small to maximize the contact point pressure and drainage capacity, preferably 0.5 mm to 2 mm. The bottom width of the ridge structure 2 is preferably 2 mm, and the top width is preferably 1.5 mm; the height of the ridge structure 2 is preferably 3 mm. The center distance between two adjacent ridge structures 2 is preferably 10 mm.

[0033] In some embodiments, the two sides of the ridge structure 2 should not be too gentle to avoid the water film extending along the ridge structure 2.

[0034] In some embodiments, the longitudinal direction of the ridge structure 2 must be aligned with the expected downward direction of the goods to avoid the ridge structure 2 generating additional resistance to the sliding of the goods. If the pallet body is annular, the ridge structures 2 are arranged radially.

[0035] In some embodiments, the width of the groove 3 (i.e., the distance between two adjacent ridge structures 2) needs to balance several factors: (1) the grooves 3 are dense enough to provide enough "drying points" to support goods of various sizes; (2) the width of the grooves 3 is sufficient to effectively drain water and prevent water from being unable to drain due to capillary effect or blockage by debris; (3) the width of the grooves 3 is smaller than the minimum size of typical small goods to avoid the problem of small goods being embedded in the grooves 3 and experiencing additional sliding resistance; based on the above factors, the width of the grooves 3 is preferably 5mm to 30mm, and more preferably 5mm to 15mm. A groove 3 with a width of 5mm to 15mm usually brings better results, but the complexity of the manufacturing process and the difficulty of cleaning must also be considered.

[0036] In some embodiments, the pallet is made of ABS. While meeting strength requirements, glass fiber can be added to the ABS to improve the pallet's abrasion resistance and rigidity, reducing deformation and wear of the ridge structure 2 during long-term use.

[0037] In some embodiments, if space permits, the tilt angle of the pallet can be slightly increased to increase the sliding force, but at the same time, the equipment layout and the risk of cargo rollover need to be comprehensively assessed.

[0038] In some embodiments, the ridge structure 2 should have a suitable roughness, preferably a roughness Ra value of 1.6 μm to 3.2 μm. This roughness range does not increase friction during drying, but can also enhance the drainage effect by disrupting the continuity of the water film through micro-textures.

[0039] In some embodiments, four recessed connecting structures 1-2 arranged in a rectangular pattern are provided in the middle horizontal region of the upper surface of the pallet body 1. A through hole is provided at the bottom center of each recessed connecting structure 1-2. The recessed connecting structure 1-2 is used to accommodate the head of a bolt. The bolt is used to securely connect the pallet body 1 to the flipping portion of the sorting trolley.

[0040] In some embodiments, the dense ridge structure on the tray can serve functions such as waterproofing, flow guidance, and reducing contact area, as detailed below:

[0041] 1. Reduce dry friction and adhesion: Reducing the contact area also significantly reduces the friction and possible van der Waals force adsorption / electrostatic adsorption of soft, deformable wrappers (foam, soft plastic) in the dry state, thereby reducing the resistance of the wrapper to slide down.

[0042] 2. Avoiding Negative Pressure Adsorption: For packages with very flat and soft bottoms (such as inflatable plastic bags laid flat), when quickly tilted on a smooth surface, air may not have enough time to enter the bottom of the package, creating a temporary low-pressure area (similar to a suction cup effect). The convex ridge structure in this embodiment provides a channel for air circulation, avoiding negative pressure adsorption.

[0043] 3. Drainage function: The grooves formed between the ridges act as drainage channels, quickly draining water from the pallet when it is tilted, reducing the formation of a water film. Simultaneously, the ridges can penetrate the water film, creating a dry support point between the pallet and the package.

[0044] 4. Reduced effective contact area: The raised ridge structure reduces the actual contact area between the goods and the pallet. For flexible goods (such as plastic bags and wet cardboard boxes), a smaller contact area can reduce molecular adhesion forces (such as the surface tension of the water film between plastic bags and ABS), indirectly reducing the coefficient of friction.

[0045] 5. Increased local pressure: The ridge structure reduces the contact area between the pallet and the package, thereby increasing the supporting pressure. Greater supporting pressure allows for easier penetration of the water film, enabling the ridge structure to more effectively contact the package itself. Simultaneously, the ridge structure can slightly embed into soft goods such as cartons, providing sliding guidance.

[0046] Example 2

[0047] A tilting sorting cart includes a cart body and a tilting section 4. The cart body includes a frame 3, and support wheels and guide wheels mounted on the bottom of the frame. The bottom of the tilting section 4 is rotatably connected to the top of the frame 3 and locked by a locking structure. The top of the tilting section 4 is fixed with an anti-adhesion sorting tray provided in Embodiment 1.

[0048] Example 3

[0049] A tilting sorting machine includes a frame, tilting sorting carts, a circular track, a drive mechanism, a reset assembly, a packing actuator, and packing slots. The circular track is mounted on the frame. Several tilting sorting carts, as provided in Embodiment 2, are sequentially connected to the circular track. The frames of adjacent tilting sorting carts are rotatably connected.

[0050] Multiple unloading compartments are arranged sequentially on the side of the unloading area of ​​the circular track to receive packages output from the tilting sorting cart. Each unloading compartment is equipped with a corresponding unloading actuator. The unloading actuator is used to unlock the locking structure on the tilting sorting cart, causing the anti-adhesion sorting tray to tilt down and output the package.

[0051] The reset component is used to drive the anti-adsorption sorting tray of the flip-top sorting cart to flip upwards and reset.

[0052] The drive mechanism is used to drive each flip-top sorting cart to run in a cycle.

Claims

1. An anti-adhesion sorting tray, comprising a tray body (1); characterized in that: It also includes an anti-adsorption structure set on the upper surface of the tray body (1); the anti-adsorption structure includes a long strip-shaped ridge structure (2) arranged in sequence at intervals; the height of the ridge structure (2) is greater than or equal to 2mm.

2. The anti-adsorption sorting tray according to claim 1, characterized in that: The length extension direction of each of the ridge structures (2) is perpendicular to the flipping axis of the sorting tray.

3. The anti-adsorption sorting tray according to claim 1, characterized in that: The longitudinal section of the convex ridge structure (2) is a trapezoid with a wider bottom and a narrower top.

4. The anti-adsorption sorting tray according to claim 3, characterized in that: The top width of the ridge structure (2) is 0.5mm to 2mm.

5. The anti-adsorption sorting tray according to claim 1, characterized in that: The height of the ridge structure (2) is 2mm to 4mm; a groove (3) is formed between two adjacent ridge structures (2), and the width of the groove (3) is 5mm to 30mm.

6. The anti-adsorption sorting tray according to claim 1, characterized in that: The surface roughness Ra of the ridge structure (2) is 1.6μm~3.2μm.

7. The anti-adsorption sorting tray according to claim 1, characterized in that: The ridge structure (2) and the tray body (1) are an integral structure.

8. The anti-adsorption sorting tray according to claim 1, characterized in that: The pallet body (1) is provided with a flange structure (1-1) that slopes upward from the inside to the outside.

9. A tilting sorting vehicle, comprising a trolley body and a tilting section; the trolley body includes a frame, and support wheels and guide wheels mounted at the bottom of the frame; the bottom of the tilting section is rotatably connected to the top of the frame and locked by a locking structure; characterized in that: The top of the flipping section is equipped with an anti-adsorption sorting tray as described in any one of claims 1-8.

10. A tilting sorting machine, comprising a frame, a tilting sorting cart, and a circular track; said circular track is mounted on the frame; characterized in that: The tilting sorting carts as described in claim 9 are arranged sequentially on a circular track; the frames of two adjacent tilting sorting carts are rotatably connected.

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