Sorting mechanism of color sorter
By incorporating a water tank and water circulation system into the color sorter, the water surface is used to receive and drive the material movement, thus solving the problem of material surface damage caused by mechanical impact and achieving material protection and clean sorting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-03
AI Technical Summary
Existing color sorters that use mechanical impact sorting methods are prone to damaging the surface of materials, especially causing significant losses to fruits with delicate skins such as apples.
A receiving water tank is set below the color sorting channel to receive materials using the water surface. The material is driven to move through a water circulation system. Combined with buffer and separation components, the material is prevented from directly contacting the rigid guide plate. The water design uses water flow to drive the separation and movement of materials, reducing impact.
It effectively protects the surface of materials, especially the integrity of fruits, reducing the loss rate, while also having a surface cleaning function, reducing subsequent cleaning processes.
Smart Images

Figure CN224072684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of color sorters, and more particularly to a sorting mechanism for a color sorter. Background Technology
[0002] Color sorting equipment has two sorting methods: one uses gas to blow air onto the material, and the other uses mechanical impact to separate the material. The former is suitable for small, lightweight materials, while the latter is suitable for large, heavy materials. Color sorters are typically used in the food industry for sorting materials such as fruits. Softer materials like fruits, after leaving the sorting channel, directly impact the rigid guide plates or collecting devices, easily causing surface damage and leading to a decline in quality, especially for fruits with delicate skins like apples. Utility Model Content
[0003] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a sorting mechanism for a color sorter that solves the problem that existing color sorters using mechanical impact sorting methods are prone to damaging the surface of materials.
[0004] To address the problems in the existing technology, the technical solution of this utility model is as follows:
[0005] A sorting mechanism for a color sorter includes a support frame. A color sorting channel is fixed to the top of the support frame. An impact component is provided below the material discharge end of the color sorting channel and is connected to the support frame. A buffer guide component is provided on the support frame. The buffer guide component is used to receive the material with stored water and transport it to both sides of the support frame. Separation components are symmetrically fixed at both ends of the inner wall of the support frame. The separation components are connected to the discharge end of the buffer guide component and are used to separate the water flow from the material and guide the material output.
[0006] Optionally, the buffer guide assembly includes two receiving water tanks symmetrically arranged on the inner wall of the support frame, a circulating water pool located at the lower end of the inner wall of the support frame, and a water circulation system on the support frame connecting the circulating water pool and the two receiving water tanks. The two receiving water tanks are respectively used to receive un-impacted target material and impacted deviated material. The gap between the two receiving water tanks is located directly below the lower end of the color sorting channel, and both receiving water tanks are located directly above the circulating water pool.
[0007] Optionally, the receiving water tank is formed by a water tank plate fixed between two side plates and the two side plates. The inner side of the water tank plate is a vertical baffle, and the outer side is an outwardly inclined upward guide surface.
[0008] Optionally, the water circulation system includes a water pump fixed to the outside of a side plate on one side, and a nozzle array disposed on the inside of the support frame. The spray direction of the nozzle array is respectively towards the inside of two receiving water tanks. The water inlet of the water pump is connected to the circulating water pool, and the water outlet of the water pump is connected to each nozzle. The nozzle array has two sets, and each set of nozzle arrays is equally spaced along the width direction of the support frame. Each set of nozzle arrays faces one receiving water tank.
[0009] Optionally, the separation assembly includes a filter screen fixed to the inner wall of the support frame. The filter screen is located below the upturned guide surface of the water tank plate and extends downward to the outside of the support frame at an angle. Water-blocking edges are fixed on both sides of the filter screen, with the two water-blocking edges positioned opposite each other and located above the circulating water tank.
[0010] Compared with the prior art, the advantages of this utility model are as follows:
[0011] 1. Compared with traditional technology, this utility model sets two receiving water tanks below the color sorting channel to receive the screened materials. The water surface receives the materials, which is more flexible than the rigid guide plate in traditional technology. The soft landing of the water surface after screening greatly reduces the probability of material damage and effectively protects the materials.
[0012] 2. This utility model is particularly suitable for fruit sorting. Through the coordinated design of water buffer receiving and closed-loop water circulation system, it also has the function of surface cleaning during the sorting process, reducing the need for subsequent washing processes. At the same time, the directional water flow drives the fruit to move towards the collection end, and the continuous liquid surface disturbance weakens the surface tension, significantly reducing the impact force and damage rate of the falling fruit. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the water tank plate structure of this utility model.
[0015] Figure 3 This is a schematic diagram of the water-blocking edge structure of this utility model.
[0016] Figure 4 This is a schematic diagram of the striking plate of this utility model.
[0017] Reference numerals in the attached drawings: 1. Support frame; 101. Bottom beam; 102. Side plate; 2. Color sorting channel; 3. Water tank plate; 4. Water receiving tank; 5. Water collection plate; 6. Circulating water tank; 7. Water pump; 8. First water pipe; 9. Second water pipe; 10. Nozzle; 11. Filter screen; 12. Water retaining edge. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Please see Figures 1 to 4 This embodiment provides a sorting mechanism for a color sorter, including a support frame 1 consisting of two bottom beams 101 and two side plates 102. The two bottom beams 101 are arranged in parallel at the bottom of the two side plates 102, and the two side plates 102 are arranged in parallel at the top of the two bottom beams 101. The side plates 102 are fixed to the bottom beams 101, and the length direction of the side plates 102 is perpendicular to the length direction of the bottom beams 101.
[0020] A color sorting channel 2 is fixed at the center of the top surface of the two side plates 102. A connecting plate is also fixed between the two side plates 102. Multiple striking plates are hinged at equal intervals at the bottom of the connecting plate. The striking plates are located below the material drop end of the color sorting channel 2. A cylinder is hinged between the side of the striking plate away from the color sorting channel 2 and the connecting plate. When fruit, such as apples, falls through the color sorting channel 2, it is identified by a CCD camera arranged on the opposite side of the color sorting channel 2. The camera determines the position of the fruit that needs to be struck and sorted. Then, the cylinder at the corresponding position is driven to extend, pushing the striking plate to quickly flip and strike the fruit, so that the marked fruit leaves the original falling path, thus completing the sorting of fruits of different colors. The arrangement and working principle of the CCD camera are existing technologies, so they will not be described in detail here.
[0021] The above description describes the conventional structural layout of fruit color sorting equipment in the prior art, which mainly uses vision to complete the sorting work and mechanically removes fruits of different colors by striking them.
[0022] Two water trough plates 3 are symmetrically fixed between the two side plates 102. The opposite sides of the two water trough plates 3 are bent upwards into a vertical shape, and the opposite sides of the two water trough plates 3 are inclined upwards and extend outwards. The water trough plates 3 and the two side plates 102 form a water-receiving trough 4 that can hold water. The gap between the two water trough plates 3 is directly below the lower edge of the color sorting channel 2. Therefore, the first type of fruit that does not need to be hit falls directly into the receiving trough 4 on the right side along the color sorting channel 2. The second type of fruit that has been sorted out is hit by the impact plate at a very high speed and falls into the receiving trough 4 on the left side. Since the receiving trough 4 is full of water, the fruit does not come into hard contact with any other object except water when it falls into the receiving trough 4. Therefore, the surface of the fruit will not be damaged. Using water to catch the fruit plays a good protective role for the softer sorting materials such as fruit.
[0023] To ensure that the material can move quickly within the receiving trough 4 to the opposite side of the two receiving troughs 4, and to prevent later fruit from colliding with previous fruit, a water collection plate 5 is fixed between the two side plates 102, located below the receiving trough 4. The two ends of the water collection plate 5 are bent upwards and extend, forming a circulating water pool 6 with the two side plates 102. It is important to note that both water trough plates 3 are located between the two ends of the water collection plate 5, ensuring that water overflowing from the ends of the water trough plates 3 is completely collected by the water collection plate 5. A water pump 7 is fixed to the outer wall of one side plate 102. The inlet of the water pump 7 is connected to the circulating water pool 6 via a first water pipe 8, and the outlet of the water pump 7 is connected to a fixed second water pipe 9. The end of the second water pipe 9 opposite to the water pump 7 extends through the side plate 102 between the two side plates 102 and between the two water trough plates 3. Two sets of nozzles 10 are symmetrically fixed on the portion between the side plates 102. The two sets of nozzles 10 are respectively facing the two receiving water tanks 4. Each set of nozzles 10 is evenly distributed on the second water pipe 9 along the length of the bottom beam 101. In this way, after the fruit enters the receiving water tank 4, the water pump 7 is continuously driven to pump water from the circulating water tank 6 into the nozzles 10 and spray it into the receiving water tank 4. This causes the water in the receiving water tank 4 to continuously flow to the opposite side of the two receiving water tanks 4, which in turn causes the fruit to continuously float to the opposite side of the two receiving water tanks 4. At the same time, the fruit can also be rinsed, reducing the need for subsequent cleaning processes, until it reaches the upturned end of the water tank plate 3. Then, it is carried away from the receiving water tank 4 by the water flow and falls down. This allows the previous fruit to quickly leave the fruit sorting area, avoiding collisions between the later fruit and the previous fruit, and further ensuring that the fruit is not damaged.
[0024] To ensure the separation of materials from water, two filter screens 11 are symmetrically fixed between the two side plates 102. The two filter screens 11 are located at both ends of the side plates 102, and the two filter screens 11 on both sides are located below the two water tank plates 3 on both sides. The two filter screens 11 are inclined and extend downwards to the opposite side. In this way, the fruit is washed by the water flow to the upturned end of the water tank plate 3 and falls onto the filter screen 11. Then it rolls down along the filter screen 11. A collection conveyor belt or collection frame is set at the end of the filter screen 11 for collection. During the entire screening process, the fruit will not violently collide with hard objects, which can effectively protect the outer surface of the fruit from damage and reduce loss.
[0025] To avoid water waste, water-blocking edges 12 can be fixed at opposite positions on both sides of the filter screen 11 to ensure that the water-blocking edges 12 are directly above the water collection plate 5. However, the height of the top water-blocking edge 12 must be high enough to allow the material to pass through smoothly, thereby blocking the water on the top surface of the filter screen 11 so that it does not slide down the top surface of the filter screen 11 to the outside, but is blocked by the water-blocking edge 12 and drips into the water collection plate 5.
[0026] In summary, compared with the traditional mechanical impact color sorter, this utility model can use water to soften and support the material after color sorting, avoiding hard contact between the material and the equipment, preventing damage to the material surface, effectively protecting relatively fragile sorted materials such as fruits, and reducing losses.
[0027] 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 sorting mechanism for a color sorter, comprising a support frame (1), wherein a color sorting channel (2) is fixed to the top of the support frame (1), and a striking component is provided below the material discharge end of the color sorting channel (2), the striking component being connected to the support frame (1), characterized in that, The support frame (1) is provided with a buffer guide assembly. The buffer guide assembly is used to receive the material with the stored water and transport it to both sides of the support frame (1). The two ends of the inner wall of the support frame (1) are symmetrically fixed with separation components. The separation components are connected to the discharge end of the buffer guide assembly and are used to separate the water flow from the material and guide the material output.
2. The sorting mechanism of the color sorter according to claim 1, characterized in that, The buffer guide assembly includes two receiving water tanks (4) symmetrically arranged on the inner wall of the support frame (1), a circulating water pool (6) arranged at the lower end of the inner wall of the support frame (1), and a water circulation system arranged on the support frame (1) connecting the circulating water pool (6) and the two receiving water tanks (4). The two receiving water tanks (4) are respectively used to receive the target material that has not been hit and the deviated material that has been hit. The gap between the two receiving water tanks (4) is located directly below the lower end of the color sorting channel (2), and both receiving water tanks (4) are located directly above the circulating water pool (6).
3. The sorting mechanism of the color sorter according to claim 2, characterized in that, The receiving water tank (4) is formed by a water tank plate (3) fixed between two side plates (102) and the two side plates (102). The inner side of the water tank plate (3) is a vertical baffle, and the outer side is an outwardly inclined upward guide surface.
4. The sorting mechanism of the color sorter according to claim 2, characterized in that, The water circulation system includes a water pump (7) fixed on the outside of a side plate (102) on one side, and an array of nozzles (10) set on the inside of the support frame (1). The spray direction of the nozzle array (10) is respectively towards the inside of the two receiving water tanks (4). The inlet end of the water pump (7) is connected to the circulating water pool (6), and the outlet end of the water pump (7) is connected to each nozzle (10).
5. The sorting mechanism of the color sorter according to claim 4, characterized in that, The nozzle (10) array has two groups, each group of nozzles (10) array is distributed at equal intervals along the width direction of the support frame (1), and each group of nozzles (10) array faces a receiving tank (4).
6. The sorting mechanism of the color sorter according to claim 3, characterized in that, The separation assembly includes a filter screen (11) fixed to the inner wall of the support frame (1). The filter screen (11) is located below the upturned guide surface of the water tank plate (3) and extends downward to the outside of the support frame (1) at an angle.
7. The sorting mechanism of the color sorter according to claim 6, characterized in that, Both sides of the filter screen (11) are fixed with water-blocking edges (12), the two water-blocking edges (12) are opposite to each other, and the water-blocking edges (12) are located above the circulating water pool (6).