Negative pressure removing device for color sorter

Abstract

The utility model relates to the technical field of color sorters, and discloses a negative pressure removing device for a color sorter, which comprises a cyclone separator, a material suction pipe for feeding is arranged at the top of the cyclone separator, a vacuum pump is arranged on the outer side of the cyclone separator, and the vacuum pump is connected with the cyclone separator through a pipeline. An electromagnetic valve is arranged on the outer wall of the pipeline between the vacuum pump and the cyclone separator. According to the material suction device, materials enter the material suction pipe through the material channel in the movable separation frame, the size of the material channel is fixed, and the amount of the materials passing through the material channel in unit time is fixed; the movable separation frame which is movably mounted slides back and forth under the action of elastic force of the spring and air pressure to generate certain vibration so as to prevent materials from blocking a material channel in the movable separation frame; therefore, the feeding amount of the materials can be conveniently controlled when the materials are sucked, and the problem that the removal effect of the materials in the cyclone separator is poor due to the fact that too much materials are sucked is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of color sorters, in particular to a negative pressure rejecting device for a color sorter. Background Art

[0002] The search application number (CN209222661U) discloses a color sorter sorting device.

[0003] In the above technical solution: it is composed of a seed conveying unit, an image acquisition and processing system, and a seed sorting control system; the image acquisition and processing system transports the seeds to the image acquisition position through the movement of the seed conveying unit, the image acquisition device acquires the seed image, and transmits the acquired digital image to the computer for image processing to obtain digital seed information. The seed sorting control system mainly controls the precise positioning and sorting of seeds, including: a rectangular coordinate robotic arm, an inductive proximity sensor, a host computer, and a pneumatic module; the pneumatic module includes: a vacuum pump, a PLC, a solenoid valve, a cyclone separator, and a vacuum suction pipe; however, when the material is sucked in through the vacuum suction pipe, when too much material is sucked in, the power of the cyclone separator is certain, and too much material inside the cyclone separator may cause poor separation effect.

[0004] To this end, we propose a negative pressure rejection device for color sorters. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a negative pressure rejecting device for a color sorter.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a negative pressure rejection device for a color sorter, comprising a cyclone separator, a suction pipe for feeding is provided on the top of the cyclone separator, a vacuum pump is provided on the outside of the cyclone separator, and a solenoid valve is provided on the outer wall of the pipe between the vacuum pump and the cyclone separator. Two fixed side blocks are fixedly installed on the outer wall of the suction pipe, a movable separation frame that can slide is provided at one end of the suction pipe, a limiting frame for separating space is fixedly installed inside the movable separation frame, an isolation woven net for protection is fixedly installed on the bottom of the movable separation frame, a positioning sleeve shaft is fixedly installed on the top of the fixed side block one, and a spring that is sleeved with the positioning sleeve shaft is fixedly installed on the top of the fixed side block one.

[0007] Preferably, one side of the isolation woven mesh is fixedly connected to the top of the suction pipe.

[0008] Preferably, a movable hole is provided on the movable separation frame and is sleeved with the positioning sleeve, and the bottom of the movable separation frame is fixedly connected to the upper end of the spring.

[0009] Preferably, two fixed side blocks 2 are fixedly mounted on the outer wall of the suction pipe, and a connecting rod for connecting to the movable separation frame is provided on the top of the fixed side block 2.

[0010] Preferably, the connecting rod is hinged to the second fixed side block and the movable separation frame through a hinge.

[0011] Preferably, a connecting groove is provided on the inner wall of the movable hole on the movable separation frame, and a rotatable ball is provided inside the connecting groove, and the ball can contact the outer wall of the positioning sleeve shaft.

[0012] Beneficial effects

[0013] The utility model provides a negative pressure rejection device for a color sorter. It has the following beneficial effects:

[0014] (1) A negative pressure rejection device for a color sorter is provided by arranging a limited quantity frame inside a movable separation frame. The movable separation frame is arranged at one end of a material suction pipe. After a vacuum pump provides a negative pressure environment inside the cyclone separator, external materials are sucked into the cyclone separator through the material suction pipe for separation and rejection. The limited quantity frame divides the interior of the movable separation frame into a plurality of material channels. When the material is sucked in through the material suction pipe, the material enters the interior of the material suction pipe through the material channel in the movable separation frame. The size of the material channel is constant, and the amount of material passing through the material channel per unit time is fixed. At the same time, when the material is sucked in, the movably installed movable separation frame slides back and forth under the action of the elastic force of the spring and the air pressure to generate a certain vibration to prevent the material from blocking the material channel in the movable separation frame, thereby facilitating the control of the amount of material entering when the material is sucked in to avoid the problem of poor material rejection effect inside the cyclone separator due to excessive material being sucked in.

[0015] (2) A negative pressure rejection device for a color sorter is provided with a connecting rod on the top of the fixed side block 2, and the connecting rod is hinged with the corresponding movable separation frame and the fixed side block 2. When the movable separation frame slides back and forth and vibrates under the action of air pressure and the elastic force of the spring, the connecting rods on both sides of the bottom of the movable separation frame can provide a certain support effect on the movable separation frame to improve the overall stability; a rotatable ball is provided inside the connecting groove. When the movable separation frame slides back and forth, the rotatable ball rotates continuously and contacts the inner wall of the movable hole to convert sliding friction into rolling friction to reduce friction and facilitate the sliding of the movable separation frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a partial three-dimensional schematic diagram of the suction pipe in the structure of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the movable separation frame in the structure of the utility model.

[0021] Legend:

[0022] 1. Cyclone separator; 2. Suction pipe; 3. Vacuum pump; 4. Solenoid valve; 5. Fixed side block 1; 6. Spring; 7. Positioning sleeve; 8. Movable separation frame; 9. Limiting frame; 10. Fixed side block 2; 11. Connecting rod; 12. Isolation braided mesh; 13. Ball bearing. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example: A negative pressure rejecting device for a color sorter, such as Figure 1 - Figure 3As shown, it includes a cyclone separator 1, and a suction pipe 2 for feeding is provided on the top of the cyclone separator 1. The suction pipe 2 is a hollow tubular structure. A vacuum pump 3 is provided on the outside of the cyclone separator 1. The vacuum pump 3 can provide a negative pressure environment for the inside of the cyclone separator 1. The vacuum pump 3 and the cyclone separator 1 are interconnected by a pipeline. The outer wall of the pipeline between the vacuum pump 3 and the cyclone separator 1 is provided with a solenoid valve 4. After the vacuum pump 3 provides a negative pressure environment for the inside of the cyclone separator 1, the external material is sucked into the inside of the cyclone separator 1 through the suction pipe 2 for separation and removal. Two fixed side blocks 5 are fixedly installed on the outer wall of the suction pipe 2, and a slidable movable separation frame 8 is provided at one end of the suction pipe 2. The cross section of the movable separation frame 8 is a circular ring. A limiting frame 9 for separating the space is fixedly installed inside the movable separation frame 8. The limiting frame 9 divides the movable separation frame 8 The interior is divided into several material channels, and the material enters the interior of the suction pipe 2 through the material channel inside the movable separation frame 8. The size of the material channel is constant, and the amount of material passing through the material channel per unit time is fixed. The bottom of the movable separation frame 8 is fixedly installed with an isolation woven mesh 12 for protection, and one side of the isolation woven mesh 12 is fixedly connected to the top of the suction pipe 2. The top of the fixed side block 5 is fixedly installed with a positioning sleeve shaft 7, and the top of the fixed side block 5 is fixedly installed with a spring 6 that is sleeved together with the positioning sleeve shaft 7. A movable hole that is sleeved together with the positioning sleeve shaft 7 is opened on the movable separation frame 8, and the movable hole is a through hole. The bottom of the movable separation frame 8 is fixedly connected to the upper end of the spring 6. The movable separation frame 8 slides back and forth under the action of air pressure and the elastic force of the spring 6 to generate a certain vibration to prevent part of the material from being blocked inside the material channel;

[0025] By arranging a limiting frame 9 inside the movable separation frame 8, the movable separation frame 8 is arranged at one end of the suction pipe 2, and after the vacuum pump 3 provides a negative pressure environment for the inside of the cyclone separator 1, the external material is sucked into the cyclone separator 1 through the suction pipe 2 for separation and removal, and the limiting frame 9 divides the inside of the movable separation frame 8 into several material channels. When the material is sucked in through the suction pipe 2, the material enters the suction pipe 2 through the material channel in the movable separation frame 8. The size of the material channel is constant, and the amount of material passing through the material channel per unit time is fixed. At the same time, when the material is sucked in, the movably installed movable separation frame 8 slides back and forth under the elastic force of the spring 6 and the air pressure to generate a certain vibration to avoid the material from blocking the material channel in the movable separation frame 8, thereby facilitating the control of the material entry amount when the material is sucked in to avoid the problem of poor material removal effect inside the cyclone separator 1 caused by excessive material being sucked in.

[0026] The outer wall of the suction pipe 2 is fixedly mounted with two fixed side blocks 10. The top of the fixed side block 10 is provided with a connecting rod 11 for connecting the movable separation frame 8. The connecting rod 11 is hinged to the fixed side block 10 and the movable separation frame 8 through a hinge.

[0027] A connecting rod 11 is provided on the top of the second fixed side block 10, and the connecting rod 11 is hinged to the corresponding movable separation frame 8 and the second fixed side block 10. When the movable separation frame 8 slides back and forth and vibrates under the action of air pressure and the elastic force of the spring 6, the connecting rods 11 on both sides of the bottom of the movable separation frame 8 can provide a certain support effect for the movable separation frame 8 to improve the overall stability.

[0028] The inner wall of the movable hole on the movable separation frame 8 is provided with a connecting groove, the cross section of which is three-quarters of a circle, and a rotatable ball 13 is provided inside the connecting groove. The ball 13 is a spherical structure and can contact the outer wall of the positioning sleeve shaft 7;

[0029] By arranging a rotatable ball 13 inside the connecting groove, when the movable separation frame 8 slides back and forth, the rotatable ball 13 rotates continuously and contacts the inner wall of the movable hole to convert sliding friction into rolling friction to reduce friction and facilitate the sliding of the movable separation frame 8.

[0030] The working principle of the present utility model is as follows: after the vacuum pump 3 provides a negative pressure environment for the inside of the cyclone separator 1, the external material is sucked into the inside of the cyclone separator 1 through the suction pipe 2 for separation and removal, and the limiting frame 9 divides the inside of the movable separation frame 8 into several material channels. When the material is sucked in through the suction pipe 2, the material enters the inside of the suction pipe 2 through the material channel in the movable separation frame 8. The size of the material channel is constant, and the amount of material passing through the material channel per unit time is fixed. At the same time, when the material is sucked in, the movably installed movable separation frame 8 slides back and forth under the elastic force of the spring 6 and the air pressure to generate a certain vibration to prevent the material from blocking the material channel in the movable separation frame 8.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A negative pressure rejecting device for a color sorter, comprising a cyclone separator (1), a material suction pipe (2) for feeding material being provided on the top of the cyclone separator (1), a vacuum pump (3) being provided on the outside of the cyclone separator (1), and a solenoid valve (4) being provided on the outer wall of the pipe between the vacuum pump (3) and the cyclone separator (1), characterized in that: Two fixed side blocks (5) are fixedly installed on the outer wall of the suction pipe (2); a movable separation frame (8) that can slide is provided at one end of the suction pipe (2); a limit frame (9) for separating the space is fixedly installed inside the movable separation frame (8); an isolation woven mesh (12) for protection is fixedly installed at the bottom of the movable separation frame (8); a positioning sleeve (7) is fixedly installed on the top of the fixed side block (5); and a spring (6) that is sleeved with the positioning sleeve (7) is fixedly installed on the top of the fixed side block (5).

2. The negative pressure rejecting device for a color sorter according to claim 1, characterized in that: One side of the isolation braided mesh (12) is fixedly connected to the top of the suction pipe (2).

3. The negative pressure rejecting device for a color sorter according to claim 1, characterized in that: The movable separation frame (8) is provided with a movable hole sleeved with the positioning sleeve shaft (7), and the bottom of the movable separation frame (8) is fixedly connected to the upper end of the spring (6).

4. The negative pressure rejecting device for a color sorter according to claim 1, characterized in that: Two fixed side blocks (10) are fixedly mounted on the outer wall of the suction pipe (2), and a connecting rod (11) for connecting to a movable separation frame (8) is provided on the top of the fixed side block (10).

5. The negative pressure rejecting device for a color sorter according to claim 4, characterized in that: The connecting rod (11), the second fixed side block (10) and the movable separation frame (8) are hinged together through a hinge.

6. The negative pressure rejecting device for a color sorter according to claim 3, characterized in that: A connecting groove is provided on the inner wall of the movable hole on the movable separation frame (8), and a rotatable ball (13) is provided inside the connecting groove. The ball (13) can contact the outer wall of the positioning sleeve shaft (7).

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