Direct connection type air supply structure color sorter

Abstract

The invention discloses a direct connection type air supply structure color sorter, and relates to the technical field of color sorters, the direct connection type air supply structure color sorter comprises a rack, a detection channel for material falling is arranged on the inner side of the rack, a plurality of nozzles are transversely arranged below the detection channel, and an air path channel communicated with the nozzles is arranged below the nozzles; a plurality of air inlets are formed in the air channel, and a valve is arranged on each air inlet. According to the invention, the nozzle can timely and quickly reject the nozzle, so that the pressure of the airflow reaching the nozzle tends to be stable, the phenomenon that the nozzles at different positions generate difference in air injection strength is effectively avoided, and the accuracy in the nozzle rejecting operation process is improved. In the actual arrangement process, the problems that the internal structure of equipment is bloated due to a large number of air pipes, and miniaturization design of a machine body is limited are effectively solved. And splashing materials can be effectively prevented from falling on the air pipe, so that centralized cleaning operation can be conveniently carried out on the splashing materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of color sorting machines, and particularly relates to a color sorting machine with a direct air supply structure. BACKGROUND

[0002] A color sorting machine is a device that can accurately remove foreign colors, impurities or unqualified particles from mixed materials based on the differences in the optical properties of the materials and through automatic detection and separation technology. It is widely used in the grain, food, plastic, mineral and pharmaceutical industries and is a key device for improving the purity of materials and ensuring product quality. In actual work, the material conveying system of the color sorting machine can uniformly drop the materials to be sorted through a vibrating feeder, a chute and other devices to form a stable material flow. When the materials pass through the detection area, the light source irradiates the materials and the camera captures the optical signals of the materials. The control system compares the optical signals of the materials with the preset standard value to identify foreign color particles or impurities. When the impurities pass through the removal area, the control system triggers a high-speed valve to drive the nozzle to spray compressed air to blow the impurities away from the normal material flow, thereby achieving separation.

[0003] The existing color sorting machine has a nozzle for removing foreign color particles or impurities, which is mostly connected to a valve through an air pipe. Compressed air enters the air inlet of the electromagnetic valve from the air source. When the electromagnetic valve is powered on, the gas outlet passes through the air pipe to guide the gas flow into the nozzle through the air path. The nozzle instantaneously sprays air to remove impurities. However, this connection method prolongs the transmission path of the gas flow, and it takes time for the compressed air to reach the nozzle from the opening of the valve to the air pipe. This may cause the response time of the nozzle to be prolonged, resulting in removal failure and affecting the accuracy of the removal operation. Moreover, multiple air pipes occupy space in the color sorting machine, and splashed materials are likely to come into contact with the air pipes and accumulate on the air pipes, making subsequent cleaning operations difficult to perform on the color sorting machine. Therefore, the present application provides a color sorting machine with a direct air supply structure to meet the needs. SUMMARY

[0004] To solve the above problems, the present application provides a color sorting machine with a direct air supply structure.

[0005] To achieve the above-mentioned purposes, the present application provides the following technical solution: a color sorting machine with a direct air supply structure, comprising a rack, a detection channel for material falling is arranged on the inner side of the rack, a plurality of nozzles are arranged transversely below the detection channel, an air path channel is arranged below the plurality of nozzles and is in communication with the nozzles, a plurality of air inlets are arranged on the air path channel, a valve is arranged on each air inlet, and the plurality of valves are arranged transversely below the nozzles. After the compressed gas flow passes through the air path channel through the valve, it is sprayed to the lower side of the detection channel through the nozzle, thereby removing the materials that do not meet the specifications from a large amount of materials falling through the detection channel.

[0006] Further, the nozzle rear end is provided with a material guide plate inclined to the rear, and a same mounting seat is arranged behind the plurality of valves, and the material guide plate is fixed to the mounting seat.

[0007] Further, a containing support frame is fixed to the mounting seat, and the containing support frame is below the valves, and the air pipe interfaces of the valves are towards the inside of the containing support frame.

[0008] Further, a machine table is fixed to the bottom end of the containing support frame, a gas supply device is arranged in the machine table, and the machine table and the containing support frame are connected to the same sealing baffle on the side of the detection channel, the sealing baffle extends to the front side of the air path channel and the valve, and the sealing baffle is below the nozzle.

[0009] Further, a vibrating feeding hopper is arranged at the top end of the rack, and the outlet of the vibrating feeding hopper corresponds to the detection channel, the material falling from the vibrating feeding hopper enters the inside of the detection channel and slides and falls in the inside of the detection channel.

[0010] Further, the inside of the rack is provided with a first optical detection assembly and a second optical detection assembly, the first optical detection assembly and the second optical detection assembly are respectively arranged in front of and behind the machine table, the material slides and falls in the inside of the detection channel, and at the end, the material is separated from the detection channel and enters a free falling state, at this time, the first optical detection assembly and the second optical detection assembly irradiate the material and capture the particle image.

[0011] Further, a receiving hopper is arranged in the relative space of the first optical detection assembly and the machine table, and the receiving hopper is opposite to the material outlet of the detection channel, and the material falling from the detection channel falls into the inside of the receiving hopper.

[0012] In summary, the technical effects and advantages of the present application are as follows:

[0013] 1. The present application can shorten the airflow transmission path, reduce the time required for compressed air to reach the nozzle from the time when the valve is opened, and further reduce the time required for the nozzle to respond, so that the nozzle can be timely and quickly implemented to remove the operation. It can also reduce the turbulence and pressure loss of the airflow in the transmission, so that the airflow pressure reaching the nozzle tends to be in a stable state, effectively avoiding the phenomenon that the nozzles at different positions produce different jet forces, and improving the accuracy in the nozzle removal operation process.

[0014] 2. In the actual layout process of the color sorter, no space is reserved for the bending and arrangement of the air pipe, effectively solving the problem that the large number of air pipes cause the internal structure of the equipment to be bloated and limit the miniaturization design of the machine body. And it can effectively avoid the splashing of the material falling on the air pipe, reducing the difficulty of cleaning operation. In order to facilitate subsequent cleaning operation of the color sorter. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without any creative effort based on these drawings also belong to the protection scope of the present application.

[0016] Figure 1 The schematic diagram of the three-dimensional structure of the present application.

[0017] Figure 2 The schematic diagram of the positions of the vibrating inlet hopper, detection channel, connecting plate, nozzle and receiving hopper of the present application.

[0018] Figure 3 The schematic diagram of the positions of the vibrating inlet hopper, detection channel and nozzle of the present application.

[0019] Figure 4 The schematic diagram of the structure of the nozzle of the present application in the naked state.

[0020] Figure 5 The schematic diagram of the positions of the nozzle, guide plate, mounting plate and second optical detection assembly of the present application.

[0021] Figure 6 The schematic diagram of the positions of the nozzle, guide plate, mounting seat, accommodating support frame, machine table and sealing baffle of the present application.

[0022] Figure 7 The schematic diagram of the positions of the nozzle, guide plate, mounting seat, accommodating support frame, machine table and sealing baffle of the present application from the second perspective.

[0023] Figure 8 The schematic diagram of the structure of the sealing baffle of the present application after disassembly.

[0024] In the figure: 1, machine frame; 2, vibrating inlet hopper; 3, detection channel; 4, receiving hopper; 5, first optical detection assembly; 6, nozzle; 61, guide plate; 62, mounting seat; 63, accommodating support frame; 64, machine table; 65, sealing baffle; 7, second optical detection assembly; 8, gas passage; 9, valve; 10, gas supply device. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments only represent some embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without any creative effort based on these embodiments also belong to the protection scope of the present application.

[0026] Embodiment 1: Reference Figures 1-4As shown in one kind of direct connection type gas supply structure color sorter, including frame 1, the inside of frame 1 is provided with the detection passage 3 that can be used for material to fall, the detection passage 3 below is provided with multiple nozzles 6 arranged transversely, multiple nozzles 6 below is provided with the gas path channel 8 communicated with it, the gas path channel 8 is provided with multiple air inlets, each air inlet is provided with valve 9, in turn can make multiple valve 9 be located below the transverse arrangement of nozzle 6.The compressed air flow through valve 9 passes through the gas path channel 8, and is sprayed to the below of detection passage 3 through nozzle 6, and the material that does not meet the specification in the large amount of material falling through detection passage 3 is removed.

[0027] In the traditional color sorter, the valve 9 and the nozzle 6 are mostly connected by the air pipe, the compressed air enters the air inlet of the valve 9 from the air source, when the valve 9 is opened by electricity, the air outlet guides the airflow into the nozzle 6 through the air pipe, and the nozzle 6 sprays the air to remove the impurities.

[0028] In the present application, by directly docking the valve 9 and the gas path channel 8 below the nozzle 6, the airflow transmission path can be shortened, the time required for the compressed air to reach the nozzle 6 when the valve 9 is opened can be reduced, and the time required for the nozzle 6 to respond can be reduced. For high-speed moving materials, the nozzle 6 can timely and quickly implement the removal operation.

[0029] At the same time, by shortening the airflow transmission path, the turbulence and pressure loss of the airflow in the transmission can be reduced, the airflow pressure reaching the nozzle 6 tends to be stable, the phenomenon of different positions of the nozzle 6 producing different jet forces can be effectively avoided, and the accuracy of the nozzle 6 in the removal operation process is improved.

[0030] Further, by shortening the airflow transmission path, compared with the traditional air pipe type connection method, the phenomena of air pipe wear and aging, joint loosening and air leakage, air pipe winding and interference can be effectively avoided. When a nozzle 6 sprays abnormally, it is not necessary to check whether the corresponding air pipe is blocked, whether the joint is leaking, and whether the valve is normal, thereby reducing the cost of maintenance and replacement operation. In the actual layout process of the color sorter, there is no need to reserve space for air pipe bending and arrangement, which effectively solves the problem of bloated internal structure of the equipment caused by a large number of air pipes, and limits the miniaturization design of the machine body.

[0031] Embodiment 2: based on embodiment 1, as shown in Figures 5-8 The rear end of the nozzle 6 is provided with a material guide plate 61 inclinedly distributed towards the rear, a plurality of valves 9 are provided with the same mounting seat 62 at the rear, and the material guide plate 61 is fixed with the mounting seat 62. The setting of the material guide plate 61 has a guiding effect on the materials splashing to the rear of the nozzle 6, so that the splashing materials can be concentrated and fallen behind. Combined with the docking method of the valve 9 and the gas path channel 8 below the nozzle 6 in embodiment 1, the splashing materials can be effectively avoided to fall on the air pipe, so as to implement the concentrated cleaning operation on the splashing materials and reduce the difficulty of cleaning operation.

[0032] In order to maintain the stability of the nozzle 6, in the present application, the mounting seat 62 is fixed with a containing support frame 63, the containing support frame 63 is located below the valve 9, the air pipe interfaces of the valve 9 all face the inside of the containing support frame 63, see Figure 8 .

[0033] As Figure 8 shown, the bottom end of the containing support frame 63 is fixed with a machine table 64, the machine table 64 is provided with a gas supply device 10, in the actual use process of the color sorter, the gas supply device 10 is connected with the air pipe interface of the valve 9 through a flexible pipeline, the flexible pipeline is located inside the machine table 64 and the containing support frame 63. Moreover, the machine table 64 and the containing support frame 63 are connected through the same sealing baffle 65 on the side facing the detection channel 3, the sealing baffle 65 extends to the front side of the air path channel 8 and the valve 9, and the sealing baffle 65 is located below the nozzle 6. The sealing baffle 65 is provided, and the machine table 64, the containing support frame 63 and the sealing baffle 65 have a protective effect on the flexible pipeline and the gas supply device 10, so as to avoid the contact between the splashed materials and the flexible pipeline and the gas supply device 10, so as to facilitate the subsequent cleaning operation of the color sorter.

[0034] Embodiment 3: as Figure 1 , Figure 2 shown, the top end of the rack 1 is provided with a vibrating feeding hopper 2, the outlet of the vibrating feeding hopper 2 corresponds to the detection channel 3, the vibrating feeding hopper 2 uniformly and loosely "spreads" the materials through high-frequency vibration (usually driven by a vibrating motor), and the materials are uniformly and loosely "spread" and transported to the inlet of the detection channel 3 at a stable speed. Its core role is to ensure that the materials enter the inside of the detection channel 3 in a single column, without overlapping and without congestion. The detection channel 3 is usually an inclined metal or wear-resistant plastic chute, and the materials slide along the detection channel 3 and are released at the end of the detection channel 3 to enter a free falling state.

[0035] As Figure 1 shown, the inside of the rack 1 is provided with a first optical detection assembly 5 and a second optical detection assembly 7, and the first optical detection assembly 5 and the second optical detection assembly 7 are respectively located in front of and behind the machine table 64. The lenses of the first optical detection assembly 5 and the second optical detection assembly 7 need to be aligned with the free falling area at the end of the detection channel 3 to ensure the complete imaging of a single material particle. The materials slide inside the detection channel 3, and are released at the end of the detection channel 3 to enter a free falling state, at which time the first optical detection assembly 5 and the second optical detection assembly 7 irradiate the materials to capture the particle image.

[0036] The control system processes the image, extracts the optical characteristics (such as color value, gray value) of each particle, and compares with the preset qualified standard (set through the man-machine interface); if the particle characteristics exceed the qualified range (such as different colors, mildew), it is determined as "waste", and the position and falling time are recorded.

[0037] As shown in Figure 2 The first optical detection assembly 5, the relative space of the machine 64 is provided with a receiving hopper 4, the receiving hopper 4 is opposite to the material outlet of the detection channel 3, the material falling through the detection channel 3 falls into the receiving hopper 4. The receiving hopper 4 is composed of a waste hopper and a finished product hopper. The finished product hopper is a main channel located below the nozzle 6. The qualified material is not disturbed by the air jet and falls along the original trajectory to the finished product hopper. The waste hopper is located on the side of the finished product channel. When the color particle falls to the corresponding "separation point" of the nozzle 6, the control system triggers the corresponding nozzle 6, and the high-speed airflow is instantaneously sprayed, blowing the color particle to the waste hopper in the receiving hopper 4.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present application.

Claims

1. A color sorter with a direct-connected air supply structure, comprising a frame (1), wherein a detection channel (3) for material to fall is provided on the inner side of the frame (1), characterized in that: A plurality of nozzles (6) arranged transversely are provided below the detection channel (3), and an air channel (8) communicating with the nozzles (6) is provided below the plurality of nozzles (6). The air channel (8) is provided with a plurality of air inlets, and each air inlet is provided with a valve (9). The plurality of valves (9) are arranged transversely below the nozzles (6). After the compressed air flows through the valves (9) and passes through the air channel (8), it is ejected through the nozzles (6) to the bottom of the detection channel (3), thereby removing the materials that do not meet the specifications from the large amount of materials falling through the detection channel (3).

2. The color sorter with direct-connected air supply structure according to claim 1, characterized in that: A guide plate (61) tilted and distributed toward the rear is installed at the rear end of the nozzle (6), and a common mounting seat (62) is provided at the rear of the plurality of valves (9), wherein the guide plate (61) is fixed to the mounting seat (62).

3. The color sorter with direct-connected air supply structure according to claim 2, characterized in that: A accommodating support frame (63) is fixed on the mounting seat (62), and the accommodating support frame (63) is located below the valve (9), and the air pipe interface of the valve (9) faces the inside of the accommodating support frame (63).

4. The color sorter with direct-connected air supply structure according to claim 3, characterized in that: A machine platform (64) is fixed to the bottom end of the accommodating support frame (63), and an air supply device (10) is provided in the machine platform (64). The machine platform (64) and the accommodating support frame (63) are connected to each other on the side facing the detection channel (3) through the same sealing baffle (65). The sealing baffle (65) extends to the front side of the air channel (8) and the valve (9), and the sealing baffle (65) is located below the nozzle (6).

5. The color sorter with direct-connected air supply structure according to claim 1, characterized in that: A vibrating hopper (2) is provided at the top of the frame (1), and the outlet of the vibrating hopper (2) corresponds to the detection channel (3). The material falling through the vibrating hopper (2) enters the detection channel (3) and slides and falls inside the detection channel (3).

6. The color sorter with direct-connected air supply structure according to claim 5, characterized in that: A first optical detection component (5) and a second optical detection component (7) are provided on the inner side of the frame (1). The first optical detection component (5) and the second optical detection component (7) are respectively located in front of and behind the machine platform (64). The material is located inside the detection channel (3) and slides down. At the end, it leaves the detection channel (3) and enters a free-fall state. At this time, the first optical detection component (5) and the second optical detection component (7) illuminate the material and capture particle images.

7. The color sorter with direct-connected air supply structure according to claim 6, characterized in that: A receiving hopper (4) is provided in the relative space between the first optical detection component (5) and the machine platform (64). The receiving hopper (4) is directly opposite to the material outlet of the detection channel (3), and the material falling through the detection channel (3) falls into the receiving hopper (4).

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