Raw cotton foreign fiber sorting device

Abstract

The utility model discloses a raw cotton foreign fiber sorting device which comprises a spray valve type sorting line connected with a cotton box discharge port and further comprises a clamping jaw type sorting line connected with a waste cotton discharge port of the spray valve type sorting line. The clamping jaw type sorting line comprises a conveying belt, a first industrial camera and a clamping jaw mechanism, wherein the first industrial camera and the clamping jaw mechanism are sequentially arranged in the conveying direction of the conveying belt. The output end of the clamping jaw mechanism faces the conveying plane of the conveying belt so as to clamp foreign fibers recognized by the first industrial camera. The foreign fiber cleaning device can improve foreign fiber cleaning efficiency, guarantee foreign fiber cleaning effect, save a large amount of labor cost for cotton spinning enterprises, be suitable for popularization and application in the cotton spinning enterprises and be used for sorting foreign fibers in raw cotton.

Description

Technical Field

[0001] The utility model relates to cotton impurity removing equipment, in particular to a sorting device for foreign fibers of raw cotton. Background Art

[0002] In recent years, as cotton spinning companies have increasingly higher requirements for product quality control and human resource costs continue to rise, more and more cotton spinning companies choose to install cotton foreign fiber removal machines in the front spinning workshop to replace manual foreign fiber removal.

[0003] Existing cotton foreign fiber removers typically utilize an industrial camera recognition + spray valve removal method. After the cotton stream is loosened by the cotton opening and cleaning equipment, it enters the cotton foreign fiber remover, where an industrial camera identifies any foreign fibers in the stream and a high-precision spray valve removes them. Because foreign fibers are mixed with the cotton, the high-precision spray valve removes them, along with some of the cotton. This foreign fiber-containing cotton becomes waste generated by the cotton foreign fiber remover.

[0004] At present, cotton spinning companies generally use manual methods to remove most of the foreign fibers in waste cotton, and then put them back into the production line together with the original cotton. This can avoid the waste of raw materials, but it also brings new problems: companies need to pay a lot of labor costs, and manual removal of foreign fibers is inefficient and the effect is difficult to guarantee, usually less than 70%. That is to say, at least 30% of the foreign fibers will return to the production line, adding a burden to the foreign fiber removal of the production line. Utility Model Content

[0005] In order to solve the above deficiencies in the prior art, the present invention aims to provide a sorting device for foreign fibers in raw cotton, which replaces manual labor with a machine to achieve the purpose of improving the efficiency of foreign fiber removal and ensuring the effect of foreign fiber removal.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a sorting device for foreign fibers of raw cotton, comprising a spray valve type sorting line connected to a cotton box discharge port, and also comprising a clamp type sorting line connected to a waste cotton discharge port of the spray valve type sorting line;

[0007] The gripper-type sorting line includes a conveyor belt, a first industrial camera, and a gripper mechanism sequentially arranged along the conveying direction of the conveyor belt. The output end of the gripper mechanism faces the conveying plane of the conveyor belt to grip the foreign fibers identified by the first industrial camera.

[0008] As a limitation of the present invention, the first industrial camera is mounted above the conveyor belt through a support frame, facing the conveying plane at the front end of the conveyor belt.

[0009] As another limitation of the present invention, the gripper mechanism includes a transverse movement assembly mounted above the conveyor belt and located behind the first industrial camera, a lifting assembly mounted on the transverse movement assembly, and at least one pneumatic finger mounted on the lifting assembly.

[0010] As a further limitation of the present invention, the transverse movement assembly is arranged along the width direction of the conveyor belt, and includes a first mounting plate mounted above the conveyor belt and a lead screw, a guide rail and a motor assembled on the first mounting plate;

[0011] The guide rail is parallel to the lead screw, and the output end of the motor is connected to the lead screw.

[0012] As a further limitation of the present invention, the lifting assembly includes a connecting plate assembled on the lead screw and the guide rail, and a lifting cylinder fixed on the connecting plate;

[0013] The output end of the lifting cylinder faces downward and is connected to a second mounting plate for assembling the pneumatic finger.

[0014] As a further limitation of the present invention, at least one vertically upward guide shaft is fixedly provided on the second mounting plate, and the guide shaft is slidably assembled on the connecting plate.

[0015] As a further limitation of the present invention, the first mounting plate of the transverse movement assembly together with the guide rail and the lead screw all extend to the outside of one side of the conveyor belt to form a discharge end for pneumatic fingers to remove foreign fibers.

[0016] As a further limitation of the present invention, a material box for receiving foreign fibers is placed below the discharge end of the transverse movement assembly.

[0017] As a third limitation of the present invention, the spray valve type sorting line includes a conveying pipe connected to the cotton box discharge port and a second industrial camera and a spray valve sorting mechanism sequentially arranged along the conveying direction of the conveying pipe;

[0018] The conveying pipe includes a raw cotton conveying pipe, a waste cotton conveying pipe and a clean cotton conveying pipe connected to the raw cotton conveying pipe;

[0019] The working end of the spray valve sorting mechanism is directed toward the inlet of the waste cotton conveying pipe to knock the foreign fibers identified by the second industrial camera into the waste cotton conveying pipe;

[0020] The ends of the waste cotton conveying pipe and the clean cotton conveying pipe are both provided with air blowers.

[0021] As a further limitation of the present invention, a three-primary color light source and an ultraviolet light source are provided at the raw cotton conveying pipe for assisting the second industrial camera in identifying foreign fibers.

[0022] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0023] This utility model incorporates a new claw-type sorting line at the rear end of a spray valve sorting line (i.e., the existing cotton foreign fiber removal machine described in the background). This replaces manual sorting of foreign fibers from waste cotton, saving significant labor costs for businesses and effectively improving the efficiency of foreign fiber removal from waste cotton. Furthermore, the pneumatic fingers used in the claw-type sorting line offer greater precision than spray valves, enabling precise grasping of foreign fibers, reducing the amount of cotton removed during foreign fiber removal. This ensures better removal results, enabling waste cotton recycling while minimizing the risk of foreign fibers re-entering the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model (the arrow direction in the figure is the conveying direction);

[0026] Figure 2 This is a structural diagram of a gripper-type sorting line in an embodiment of the present utility model;

[0027] In the figure: 1. Raw cotton conveying pipe; 2. Waste cotton conveying pipe; 3. Clean cotton conveying pipe; 4. Second industrial camera; 5. Three-primary color light source; 6. Ultraviolet light source; 7. Spray valve; 8. Air blower; 9. Gripper-type sorting line; 10. Conveyor belt; 11. First industrial camera; 12. First mounting plate; 13. Lead screw; 14. Guide rail; 15. Motor; 16. Connecting plate; 17. Lifting cylinder; 18. Guide shaft; 19. Second mounting plate; 20. Pneumatic finger; 21. Material box. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention and are not intended to limit the present invention.

[0029] Embodiment A sorting device for raw cotton foreign fibers

[0030] like Figure 1 As shown, this embodiment includes a spray valve type sorting line connected to the cotton box discharge port and a clamping claw type sorting line 9 connected to the waste cotton discharge port of the spray valve type sorting line.

[0031] 1. Spray valve sorting line

[0032] The spray valve type sorting line includes a conveying pipe and a second industrial camera 4 and a spray valve sorting mechanism arranged in sequence along the conveying direction of the conveying pipe. The conveying pipe includes a raw cotton conveying pipe 1 connected to the cotton box discharge port, and a waste cotton conveying pipe 2 and a clean cotton conveying pipe 3 connected to the raw cotton conveying pipe 1. Figure 1As shown, the inlet of the waste cotton conveying pipe 2 is perpendicular to the raw cotton conveying pipe 1 and is located in the radial direction of the raw cotton conveying pipe 1, while the inlet of the clean cotton conveying pipe 3 is located in the axial direction of the raw cotton conveying pipe 1. In this embodiment, a fan 8 is provided at the end of each of the waste cotton conveying pipe 2 and the clean cotton conveying pipe 3 to convey the material by drawing air.

[0033] Furthermore, the delivery tube in this embodiment is made of a transparent material, so that the internal cotton flow can be observed in real time.

[0034] The second industrial camera 4 is arranged around the raw cotton conveying pipe 1 to identify foreign fibers in the cotton flow in the raw cotton conveying pipe 1. In this embodiment, two second industrial cameras 4 are arranged along the circumference of the raw cotton conveying pipe 1. Figure 1 In addition, a three-primary color light source 5 and an ultraviolet light source 6 are arranged at the raw cotton conveying pipe 1 to assist the second industrial camera 4 in identifying foreign fibers, so as to improve the accuracy of the second industrial camera 4 in identifying foreign fibers.

[0035] The spray valve sorting mechanism includes a spray valve 7 located at the outlet of the raw cotton conveying pipe 1. The jet outlet (i.e., the working end) of the spray valve 7 is connected to the raw cotton conveying pipe 1 via a pipeline and faces the inlet of the waste cotton conveying pipe 2. The air inlet of the spray valve 7 is connected to an external high-pressure air source via a pipeline. During operation, the spray valve 7 is used to eject foreign fibers detected by the second industrial camera 4 into the waste cotton conveying pipe 2.

[0036] 2. Gripper type sorting line 9

[0037] like Figure 2 As shown, the gripper-type sorting line 9 comprises a conveyor belt 10, a first industrial camera 11, and a gripper mechanism positioned sequentially along the conveyor belt 10. The conveyor belt 10 is a conventional structure, with its front end connected to the outlet of the waste cotton conveying pipe 2 to receive the waste cotton discharged from it. Its rear end is connected to a cotton bin or other equipment for storing or further processing the cotton after sorting out foreign fibers. The first industrial camera 11 is mounted above the conveyor belt 10 via a support frame, with its working end facing the conveying plane at the front end of the conveyor belt 10.

[0038] In this embodiment, the first industrial camera 11 and the second industrial camera 4 are both conventional technologies.

[0039] The output end of the clamping mechanism faces the conveying plane of the conveyor belt 10 and is located behind the first industrial camera 11, and is used to clamp the foreign fibers identified by the first industrial camera 11. Figure 2As shown, the clamping mechanism includes a transverse movement component, a lifting component and at least one pneumatic finger 20. The transverse movement component is arranged along the width direction of the conveyor belt 10, and includes a first mounting plate 12 mounted above the conveyor belt 10 and a screw 13, a guide rail 14 and a motor 15 mounted on the first mounting plate 12, wherein the screw 13 is arranged parallel to the guide rail 14, and the output end of the motor 15 is connected to the screw 13. The lifting component includes a connecting plate 16 mounted on the screw 13 and the guide rail 14 and a lifting cylinder 17 fixed on the connecting plate 16. Specifically, the connecting plate 16 is assembled on the screw 13 through a screw nut and is slidably assembled on the guide rail 14 through a slider. When the motor 15 drives the screw 13 to rotate, the connecting plate 16 can move transversely along the width direction of the conveyor belt 10. The output end of the lifting cylinder 17 is vertically downward, and a second mounting plate 19 for assembling the pneumatic finger 20 is fixed on the output end.

[0040] To ensure the stability of lifting, at least one guide shaft 18 is fixedly provided on the second mounting plate 19 of this embodiment. The upper portion of the guide shaft 18 is slidably mounted on the connecting plate 16. In this embodiment, two guide shafts 18 are slidably mounted between the second mounting plate 19 and the connecting plate 16.

[0041] The pneumatic finger 20 is a conventional structure and is used to pick up foreign fibers identified by the second industrial camera 4 on the conveyor belt 10. In this embodiment, one pneumatic finger 20 is mounted on the second mounting plate 19. Of course, the number of pneumatic fingers 20 can be increased according to actual conditions.

[0042] Furthermore, in this embodiment, the first mounting plate 12 of the transverse movement assembly, along with the guide rail 14 and the lead screw 13, extends to the outside of one side of the conveyor belt 10, forming a discharge end where pneumatic fingers 20 remove foreign fibers. In this embodiment, a material box 21 for receiving foreign fibers is also placed below the discharge end.

[0043] This embodiment performs foreign fiber removal work under the control of the PLC controller, specifically as follows: after the raw cotton enters the raw cotton conveying pipe 1 through the cotton box, it is first photographed and identified by the second industrial camera 4. When foreign fibers are found, the second industrial camera 4 transmits a signal to the PLC controller, which controls the spray valve 7 at the outlet of the raw cotton conveying pipe 1 to knock the foreign fibers and part of the raw cotton into the waste cotton conveying pipe 2. The waste cotton conveying pipe 2 conveys the foreign fibers to the conveyor belt 10 of the gripper-type sorting line 9, and the clean cotton from which the foreign fibers have been sorted enters the clean cotton conveying pipe 3 from the outlet of the raw cotton conveying pipe 1.

[0044] On the gripper-type sorting line 9, waste cotton is transported by the conveyor belt 10 and passes through the first industrial camera 11. When the first industrial camera 11 detects foreign fibers, it transmits a signal to the PLC controller, which controls the transverse movement component to adjust the pneumatic finger 20 to above the foreign fibers. The PLC controller then controls the movement of the lifting component to bring the pneumatic finger 20 into contact with the foreign fibers and controls the pneumatic finger 20 to clamp the foreign fibers. The transverse movement component is then controlled to transfer the pneumatic finger 20 to the unloading end (i.e., above the material box 21) and control the pneumatic finger 20 to unload the foreign fibers.

[0045] It should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still modify the technical solutions described in the above embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A sorting device for foreign fibers of raw cotton, comprising a spray valve type sorting line connected to a cotton box discharge port, characterized in that: It also includes a claw-type sorting line connected to the waste cotton discharge port of the spray valve sorting line; The gripper-type sorting line includes a conveyor belt, a first industrial camera, and a gripper mechanism sequentially arranged along the conveying direction of the conveyor belt. The output end of the gripper mechanism faces the conveying plane of the conveyor belt to grip the foreign fibers identified by the first industrial camera.

2. The device for sorting foreign fibers from raw cotton according to claim 1, characterized in that: The first industrial camera is mounted above the conveyor belt through a support frame, facing the conveying plane at the front end of the conveyor belt.

3. A sorting device for foreign fibers of raw cotton according to claim 1 or 2, characterized in that: The clamping mechanism comprises a transverse moving assembly mounted above the conveyor belt and located behind the first industrial camera, a lifting assembly assembled on the transverse moving assembly, and at least one pneumatic finger assembled on the lifting assembly.

4. The device for sorting foreign fibers from raw cotton according to claim 3, characterized in that: The transverse movement assembly is arranged along the width direction of the conveyor belt, and includes a first mounting plate mounted above the conveyor belt and a lead screw, a guide rail and a motor assembled on the first mounting plate; The guide rail is parallel to the lead screw, and the output end of the motor is connected to the lead screw.

5. The device for sorting foreign fibers from raw cotton according to claim 4, characterized in that: The lifting assembly includes a connecting plate assembled on the lead screw and the guide rail and a lifting cylinder fixed on the connecting plate; The output end of the lifting cylinder faces downward and is connected to a second mounting plate for assembling the pneumatic finger.

6. The device for sorting foreign fibers from raw cotton according to claim 5, characterized in that: At least one vertically upward guide shaft is fixed on the second mounting plate, and the guide shaft is slidably assembled on the connecting plate.

7. A device for sorting foreign fibers from raw cotton according to any one of claims 4 to 6, characterized in that: The first mounting plate of the transverse movement assembly, together with the guide rail and the lead screw, all extend to the outside of one side of the conveyor belt to form a discharge end for pneumatic fingers to remove foreign fibers.

8. The device for sorting foreign fibers from raw cotton according to claim 7, characterized in that: A material box for receiving foreign fibers is placed below the discharging end of the transverse moving component.

9. A device for sorting foreign fibers from raw cotton according to any one of claims 1, 2, 4-6, and 8, characterized in that: The spray valve type sorting line includes a conveying pipe connected to the cotton box discharge port, and a second industrial camera and a spray valve sorting mechanism arranged in sequence along the conveying direction of the conveying pipe; The conveying pipe includes a raw cotton conveying pipe, a waste cotton conveying pipe and a clean cotton conveying pipe connected to the raw cotton conveying pipe; The working end of the spray valve sorting mechanism is directed toward the inlet of the waste cotton conveying pipe to knock the foreign fibers identified by the second industrial camera into the waste cotton conveying pipe; The ends of the waste cotton conveying pipe and the clean cotton conveying pipe are both provided with air blowers.

10. The device for sorting foreign fibers from raw cotton according to claim 9, characterized in that: The raw cotton conveying pipe is equipped with a three-primary color light source and an ultraviolet light source to assist the second industrial camera in identifying foreign fibers.

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