What is the layered structure of the four layer grid groove for small items
Commonly used for cross belt sorting of express small items, it has four independent vertical chute layers and is generally arranged in a staggered manner (the upper and lower grid openings are horizontally staggered to avoid the upper chute blocking the lower discharge outlet). The whole set is divided into two levels: external load-bearing frame+four independent chute assembly+single groove thre
Commonly used for cross belt sorting of express small items, it has four independent vertical chute layers and is generally arranged in a staggered manner (the upper and lower grid openings are horizontally staggered to avoid the upper chute blocking the lower discharge outlet). The whole set is divided into two levels: external load-bearing frame+four independent chute assembly+single groove three-stage chute.
1、 Overall vertical layering (from high to low: 1st to 4th layer)
The feeding end is connected to the cross belt sorting trolley, and the discharging end faces the ground collection area
1. First layer (topmost layer)
The feeding height is high, and the overall chute is the shortest; The position of the discharge port is high, corresponding to the high-level packaging cage/belt.
2. Second layer
Vertically centered and upward, the length of the chute is greater than the first layer, and it is arranged horizontally offset from the first layer.
3. Third layer
Vertically centered downwards, the chute continues to lengthen to avoid the projection of the upper layer discharge.
4. Fourth layer (bottom layer)
The feeding height is low, and the chute is the longest; The discharge port is closest to the ground and directly lands for packaging.
There are two mainstream layout forms:
Misalignment type (mainstream in the industry): The four layers of sliding grooves are horizontally staggered, with no overlapping upper and lower projections and no interference with each other;
Straight facing type: four levels aligned vertically, only suitable for scenes with sufficient floor height and open bottom space, less used for small items.
2、 Three functional structures inside the single-layer sliding groove (each layer structure is completely identical)
Each independent U-shaped groove is divided into three sections along the inclined direction:
1. Buffer import section (feed inlet)
Docking cross belt trolley drop off position, slightly gentle slope, equipped with rubber buffer skin/buffer curtain to reduce the impact of parcels and prevent bouncing and damage.
2. Self sliding conveyor section (main slide)
The core sliding area has a conventional inclination angle of 30 ° to 38 ° (32 ° is commonly used for small items), with wear-resistant steel plates/polymer wear-resistant plates laid on the bottom plate, and high barriers added on both sides to prevent rollover.
3. Inventory discharge section (bottom grid)
At the end of the chute, small items are temporarily stacked and stored; Can be equipped with curtains and photoelectric full material detection to prevent express delivery from overflowing.
3、 Complete equipment support structure
1. Main frame of steel structure
Floor column, horizontal bracket and slant support; Each layer of sliding groove is fixed on a dedicated bracket with bolts for modular disassembly and assembly.
2. Interlayer isolation protective plate
Install a partition between the upper and lower chutes to prevent parcels from falling from the upper gap into the lower chute and causing mixing.
3. Protective accessories
Safety guardrail, maintenance platform, wear-resistant lining, anti-collision rubber strip.
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