Anti-blocking fruit support single-row backflow device

Abstract

An anti-blocking fruit tray single-row backflow device comprises a forward conveying belt and a reverse conveying belt which are arranged side by side and opposite in conveying direction. The input end of the forward conveyor belt is in transition connection with the first conveyor belt, and a guide plate is arranged at the output end of the forward conveyor belt; a positioning plate is mounted at the input end of the reverse conveyor belt, the positioning plate and the guide plate form a channel, and fruit supports pass through the channel in a single row; a guide rod is arranged at the output end of the reverse conveying belt and guides the fruit support to one side of the forward conveying belt. According to the anti-blocking fruit support single-row backflow device, on one hand, cyclic conveying of fruit supports can be achieved, on the other hand, the fruit supports can enter a feeding area one by one in a single-row mode, and fruit placing is convenient.

Description

Technical Field

[0001] The utility model relates to the field of fruit sorting, in particular to an anti-blocking single-row reflux device for fruit trays. Background Art

[0002] Patent application number "202011344249.6," titled "A Ring-Shaped Weighing and Sorting Device and Method for Fruit," is a previous patent application filed by our company. Existing fruit sorting methods typically involve loading the fruit first, then feeding it into a hopper, where it is weighed and sorted as the hopper moves forward along a chain. During the loading and sorting process, the fruit is subject to impact. This method is prone to damage to peaches, pears, and apples, making it unsuitable for sorting and packing spherical fruits with delicate skin.

[0003] Therefore, it is necessary to use protective fruit trays to lift and transport the fruit, but the orderly circulation and single-row reflux of the fruit trays to facilitate subsequent fruit placement has also become an urgent problem to be solved. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a single-row reflux device for fruit trays with anti-clogging function, which can realize the circular transportation of fruit trays and avoid the low efficiency and cost increase caused by repeated placement of fruit trays; on the other hand, it can make the fruit trays enter the loading area one by one in a single row, which is convenient for placing the fruit.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A device for reflux fruit trays in a single row to prevent clogging, comprising a forward conveyor belt and a reverse conveyor belt, which are arranged side by side and have opposite conveying directions; the input end of the forward conveyor belt is transitionally connected to the first conveyor belt, and the output end of the forward conveyor belt is provided with a guide plate; the input end of the reverse conveyor belt is provided with a positioning plate, which together with the guide plate form a channel, and the fruit trays pass through the channel in a single row; the output end of the reverse conveyor belt is provided with a guide rod, which guides the fruit trays on the reverse conveyor belt to the forward conveyor belt.

[0007] One side of the reverse conveyor belt is provided with a plurality of groups of obliquely arranged roller conveyor lines at intervals along the length direction, and the high ends of the roller conveyor lines are transitionally connected to the second conveyor belt at the boxing area.

[0008] The guide plate is a trapezoidal plate, the upper bottom edge of the guide plate is close to one side of the positioning plate and parallel to the side of the positioning plate, and the oblique edge of the guide plate faces the input end of the forward conveyor belt.

[0009] An output end of the channel is provided with a lifting conveyor belt, and the other end of the lifting conveyor belt is transitionally connected to the conveyor belt at the loading area.

[0010] The utility model provides an anti-blocking single-row reflux device for fruit trays, which has the following technical effects:

[0011] 1) By setting up a forward conveyor belt and a reverse conveyor belt arranged in two directions, the forward conveyor belt can receive the fruit trays with unsorted fruits at the first conveyor belt (the reason for unsorting is that the fruits are too large or too small, resulting in weight being out of the sorting range). On the other hand, when there are too many fruit trays at the input end of the channel, they can also enter the reverse conveyor belt and then be brought to the forward conveyor belt by the reverse conveyor belt, thereby avoiding blockage in the channel; finally, one side of the reverse conveyor belt can also receive empty fruit trays flowing from the packing area through the roller conveyor line, so that the empty fruit trays and the remaining unsorted fruit trays can be returned to the loading area for re-loading or further processing, thereby realizing the circular transportation of fruit trays.

[0012] 2) By setting guide plates, positioning plates and guide rods and arranging their positions reasonably, the width of the channel matches the outer diameter of the fruit trays, so that the fruit trays can be arranged in a single row and returned to the loading area, which facilitates orderly loading in the loading area. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 It is a partially enlarged schematic diagram of one end of the utility model.

[0016] Figure 3 It is a partially enlarged schematic diagram of the other end of the utility model.

[0017] Figure 4 This is the front view of the lifting conveyor belt in the present utility model.

[0018] Figure 5 This is a schematic diagram of the tensioning mechanism for lifting the conveyor belt in the present invention.

[0019] Figure 6 This is a schematic diagram of the arrangement of the utility model in a sorting production line.

[0020] In the figure: forward conveyor belt 1, reverse conveyor belt 2, first conveyor belt 3, guide plate 4, positioning plate 5, channel 6, fruit tray 7, guide rod 8, roller conveyor line 9, second conveyor belt 10, lifting conveyor belt 11, frame 12, U-shaped rod 13, first adjustment hole 14, adjustment screw 15. DETAILED DESCRIPTION

[0021] like Figure 1-3As shown, an anti-blocking single-row fruit tray reflow device includes a forward conveyor belt 1 and a reverse conveyor belt 2, which are arranged closely side by side. The forward conveyor belt 1 and the reverse conveyor belt 2 are driven by independent motors, and the conveying directions of the forward conveyor belt 1 and the reverse conveyor belt 2 remain opposite.

[0022] The input end of the forward conveyor belt 1 is transitionally connected to the first conveyor belt 3 at the end of the material and fruit sorting area. The output end of the forward conveyor belt 1 is provided with a guide plate 4, which is a trapezoidal plate. The upper bottom edge of the guide plate 4 is close to the side of the reverse conveyor belt 2, and the oblique edge of the guide plate 4 faces the input end of the forward conveyor belt 1.

[0023] A positioning plate 5 is installed at the input end of the reverse conveyor belt 2. The side of the positioning plate 5 near the guide plate 4 is flush with the edge of the reverse conveyor belt 2. The positioning plate 5 and the guide plate 4 form a straight channel 6 at the end. The width of the channel 6 matches the outer diameter of the fruit trays 7, so that only the fruit trays 7 can pass through in a single file. A guide rod 8 is installed at the output end of the reverse conveyor belt 2 to guide the fruit trays 7 to the side of the forward conveyor belt 1.

[0024] A plurality of groups of inclined roller conveyor lines 9 are arranged at intervals along the length direction on one side of the reverse conveyor belt 2, the lower end of the roller conveyor line 9 is transitionally connected to the reverse conveyor belt 2, and the high end of the roller conveyor line 9 is transitionally connected to the second conveyor belt 10 at the packing area.

[0025] In this way, the fruit trays 7 at the end of the material fruit sorting area and the empty fruit trays from the packing area are gathered on the forward conveyor belt 1 and the reverse conveyor belt 2, and are conveyed to the lifting conveyor belt 11 through the channel 6.

[0026] like Figure 2-3 As shown, preferably, the forward conveyor belt 1 and the reverse conveyor belt 2 are both mounted on a frame 12, with U-shaped rods 13 fixed at both ends of the frame 12, and a first straight-line adjustment hole 14 is opened on the U-shaped rod 13, and one end of the adjustment screw 15 passes through the first adjustment hole 14 and is fixed at the first adjustment hole 14 by upper and lower first nuts. Second adjustment holes are provided at appropriate positions on the first conveyor belt 3, the guide plate 4, the positioning plate 5, and the guide rod 8, and the adjustment screw 15 passes through the second adjustment hole and is fixed at the upper and lower second nuts. By providing the adjustment screw 15, the guide plate 4, the positioning plate 5, and the guide rod 8 can be supported and fixed near the inner side of the forward conveyor belt 1 and the reverse conveyor belt 2; the output end of the first conveyor belt 3 can be installed and fixed to maintain stability.

[0027] like Figure 4As shown, three sets of second mounting blocks 11.2 are spaced apart along the length of the lower end of the first mounting block 11.1 of the lifting conveyor belt 11. The first two sets of second mounting blocks 11.2 have through holes 11.3 at their lower ends and arcuate slots 11.4 at their upper ends. The corresponding lifting brackets 11.5 have two through holes at the top and bottom. Bolts pass through corresponding holes in the second mounting blocks 11.2 and lifting brackets 11.5 for securement. Because the left half of the lifting conveyor belt 11 is arranged at an angle, the angle needs to be adjusted during installation. The provision of arcuate slots 11.4 improves installation reliability and flexibility.

[0028] like Figure 5 As shown, in addition, a screw tensioning mechanism 11.6 is provided on the first mounting seat 11.1 of the lifting conveyor belt 11. The screw tensioning mechanism 11.6 is a prior art, and the belt is tensioned by rotating the screw to move the tensioning pulley 11.7 back and forth.

[0029] like Figure 2 As shown, the fruit holder 7 includes an outer ring made of plastic. Multiple stoppers with central holes are arranged from top to bottom within the outer ring. The stoppers are tilted about 5-7 degrees toward the center and serve as support and limiters. The stoppers are made of rubber, and each layer of stoppers can be composed of multiple groups of stoppers spaced in an annular pattern, which further aligns with the fruit and prevents damage.

[0030] Working principle and process: Figure 6 As shown, empty fruit trays 7 enter the channel 6 in a single row through the recirculation zone (indicated by f), and then enter the conveyor belt at the loading area (indicated by a) via the lifting conveyor belt 11. The fruit is manually placed into the fruit trays 7 one by one, with each fruit tray 7 corresponding to one fruit. The fruit trays 7 carrying the fruit are transported along the conveyor belt to the fruit sorting area (indicated by d) for sorting (based on weight). On the one hand, fruit trays 7 of different weight grades are sent to different workstations (second conveyor belt 10) in the boxing area (indicated by e) for boxing. The empty fruit trays 7 are returned to the reverse conveyor belt 2 via the roller conveyor line 9. From the reverse conveyor belt 2, they enter the forward conveyor belt 1 and are transported forward. After passing through the channel 6 (a part of the forward conveyor belt 1), they are again transported by the lifting conveyor belt 11 into the loading area (indicated by a). On the other hand, the fruit trays carrying fruit that have not been sorted in the fruit sorting area (indicated by d) or the empty fruit trays that have not been loaded with fruit in time enter the input end of the forward conveyor belt 1 through the first conveyor belt 3, and are then transferred forward to the loading area (indicated by a) through the forward conveyor belt 1 for subsequent processing.

Claims

1. An anti-blocking single-row reflux device for fruit trays, characterized by: The invention comprises a forward conveyor belt (1) and a reverse conveyor belt (2), wherein the forward conveyor belt (1) and the reverse conveyor belt (2) are arranged side by side and have opposite conveying directions; the input end of the forward conveyor belt (1) is transitionally connected with the first conveyor belt (3), and the output end of the forward conveyor belt (1) is provided with a guide plate (4); the input end of the reverse conveyor belt (2) is provided with a positioning plate (5), the positioning plate (5) and the guide plate (4) form a channel (6), and the fruit trays (7) pass through the channel (6) in a single row; the output end of the reverse conveyor belt (2) is provided with a guide rod (8), and the guide rod (8) guides the fruit trays (7) on the reverse conveyor belt (2) to the forward conveyor belt (1).

2. The anti-clogging single-row reflux device for fruit trays according to claim 1, characterized in that: A plurality of groups of obliquely arranged roller conveyor lines (9) are provided at intervals along the length direction on one side of the reverse conveyor belt (2), and the high ends of the roller conveyor lines (9) are transitionally connected to the second conveyor belt (10) at the boxing area.

3. The anti-clogging single-row reflux device for fruit trays according to claim 1, characterized in that: The guide plate (4) is a trapezoidal plate, the upper bottom edge of the guide plate (4) is close to one side of the positioning plate (5) and is parallel to the side of the positioning plate (5), and the oblique edge of the guide plate (4) faces the input end side of the forward conveyor belt (1).

4. The anti-clogging single-row reflux device for fruit trays according to claim 1, characterized in that: The output end of the channel (6) is provided with a lifting conveyor belt (11), and the other end of the lifting conveyor belt (11) is transitionally connected to the conveyor belt at the loading area.

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