High-speed screening system for blasting beads

Abstract

The invention discloses a high-speed screening system for blasting beads. The high-speed screening system comprises a rack, a conveying belt, a rubbing belt and a camera, wherein the conveying belt is arranged on the rack and used for conveying the blasting beads, the rubbing belt and the conveying belt are arranged in a crossed mode, and the camera is used for shooting the blasting beads. The conveying belt is provided with a containing cavity for containing the blasting beads, the bottom of the containing cavity is provided with a through hole, the rubbing belt is located below the conveying belt and can make contact with the bottoms of the blasting beads in the containing cavity, and the camera is aligned to the intersection of the conveying belt and the rubbing belt. According to the high-speed screening system for the blasting beads, the conveying belt is adopted for pushing the blasting beads forwards, the rubbing belt rubs the blasting beads from the side direction to rotate, composite motion is formed, photos shot by the cameras can comprehensively reflect the shape characteristics of the blasting beads, the structure is simple, the number of the cameras can be set according to the capacity requirement, and under the condition that the four cameras are arranged, the production efficiency is improved. And the capacity can reach 3 million capsules per hour, so that the blasting capsule screening efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco manufacturing, in particular to a high-speed screening system for popping beads. Background Art

[0002] The existing disc bead screening system mainly uses centrifugal force to screen the beads. Its design screening speed is 1.4 million beads / hour. After practical operation, it is found that the actual screening speed is about 800,000 beads / hour. After research, it is found that the bead screening speed of the above-mentioned existing disc bead screening system is closely related to the rotation speed of the turntable. Since the beads are light in weight, when the turntable speed is too high, the movement trajectory of the beads will be uncontrolled due to the centrifugal force, so that the defective beads cannot be screened out. In order to make the bead screening qualified, the rotation speed has to be reduced, which results in a reduced screening speed, and its production capacity cannot be further improved, and it cannot meet the current actual production needs. Summary of the invention

[0003] The present invention aims to solve at least one of the above problems and provides a high-speed screening system for popping beads, comprising: a frame (1), a conveyor belt (2) arranged on the frame (1) for conveying popping beads (4), a rubbing belt (3) arranged crosswise with the conveyor belt (2), and a camera (5) for photographing the popping beads; the conveyor belt (2) is provided with a receiving cavity (21) for receiving the popping beads, the bottom of the receiving cavity (21) is a through hole, the rubbing belt (3) is located below the conveyor belt (2) and can contact the bottom of the popping beads in the receiving cavity, and the camera (5) is aimed at the intersection of the conveyor belt (2) and the rubbing belt (3).

[0004] Furthermore, it also includes a light source (9) arranged below the rubbing belt (3) and irradiated toward the intersection of the conveyor belt (2) and the rubbing belt (3); the rubbing belt (3) is made of a transparent or translucent material.

[0005] Furthermore, the accommodating cavity (21) is a rectangular perforation, the side length of the rectangular perforation is adapted to the diameter of the bursting beads, and support plates (22) are provided below the conveyor belt (2) on both sides of the rubbing belt (3).

[0006] Furthermore, a transparent or translucent support plate (31) for supporting the rubbing belt is provided below the rubbing belt (3).

[0007] Furthermore, it also includes a cleaning roller brush 1 (23) for cleaning the conveyor belt (2) and rotatably contacting the conveyor belt, and a cleaning roller brush 2 (32) for cleaning the rubbing belt (3) and rotatably contacting the rubbing belt.

[0008] Furthermore, a slide rail (11) is provided on the bracket (1), the rubbing belt (3) is provided on a mounting frame (33), and the mounting frame (33) is slidably provided on the slide rail (11).

[0009] Furthermore, a suction pipe is arranged above the conveyor belt (2) in front of the camera (5), and an air blowing pipe is arranged below the conveyor belt corresponding to the suction pipe, and the number of the air blowing pipes corresponds one-to-one to the number of the accommodating cavities in a row on the conveyor belt (2).

[0010] Furthermore, the straw comprises a defective straw (61) and a repairable straw (62), and the air blowing pipe comprises an air blowing pipe 1 (81) and an air blowing pipe 2 (82) corresponding to the defective straw (61) and the repairable straw (62), respectively.

[0011] Furthermore, it also includes a hopper (74) arranged on the head end of the conveyor belt (2).

[0012] The high-speed screening system for popping beads of the present invention uses the accommodating chamber of the conveyor belt to push the popping beads forward, and the rubbing belt to rub the popping beads from the side to rotate, so that the popping beads form a compound movement of moving forward and rotating sideways at the intersection of the conveyor belt and the rubbing belt. The camera takes photos of each position of the popping beads during the rotation process from above, which can fully reflect the shape characteristics of the popping beads. The acquired full-range photos of the popping beads are subjected to image processing and comparison technology to find the shape defects of the popping beads, lock the unqualified products, and use an air blow pipe to blow the unqualified and repairable popping beads away from the conveyor belt at the calculated positioning position, and transport them to the corresponding collection box under the suction of the negative pressure suction pipe. The present invention has a simple structure, and multiple rows of popping bead accommodating chambers and cameras can be set according to production capacity requirements. When 4 cameras are set, the production capacity can reach 3 million beads / hour, which greatly improves the efficiency of popping bead screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a high-speed screening system for popping beads of the present invention;

[0014] Figure 2 for Figure 1 Schematic diagram of the installation structure of the middle rubbing belt;

[0015] Figure 3 It is a schematic diagram of the principle of the high-speed screening system for explosive beads of the present invention;

[0016] In the figure: 1. Rack; 11. Slide rail 1; 2. Conveyor belt; 21. Accommodating chamber; 22. Support plate; 23. Cleaning roller brush 1; 3. Rubbing belt; 31. Support plate; 32. Cleaning roller brush 2; 33. Mounting frame; 34. Slide rail 2; 4. Bursting beads; 5. Camera; 61. Rejected product straw; 62. Repairable product straw; 7. Hopper; 71. Rejected product box; 72. Repairable product box; 73. Qualified product box; 74. Hopper; 81. Blowing pipe 1; 82 Blowing pipe 2; 9. Light source. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-3 As shown, a high-speed screening system for popping beads includes: a frame 1, a conveyor belt 2 arranged on the frame 1 for conveying popping beads 4, a rubbing belt 3 arranged crosswise with the conveyor belt 2, and a camera 5 for photographing the popping beads.

[0021] The frame is provided with a motor for driving the conveyor belt 2 and a roller shaft for supporting the conveyor belt. The conveyor belt 2 is provided with a receiving cavity 21 for accommodating explosive beads. The bottom of the receiving cavity 21 is a through hole. The receiving cavity 21 is preferably a rectangular perforation. The side length of the rectangular perforation is adapted to the diameter of the explosive beads. Generally, after the explosive beads are loaded into the receiving cavity, the lower half of the explosive beads are exposed to the lower edge of the receiving cavity, and the inscribed circle of the explosive beads and the receiving cavity is located above the lower edge of the receiving cavity. Support plates 22 are provided below the conveyor belt 2 on both sides of the rubbing belt 3. Of course, the receiving cavity can also be of other shapes, as long as the size is roughly adapted to the explosive beads. When the conveyor belt moves forward, the receiving cavity pushes the explosive beads forward. The bracket 1 is also provided with a cleaning roller brush 23 for cleaning the conveyor belt 2, which is rotatably contacted with the conveyor belt. It also includes a hopper 74 provided at the head end of the conveyor belt 2. The popping beads to be tested are placed in the hopper. The discharge end of the hopper is in a flat mouth structure, which can just accommodate a row of popping beads. When the hopper is opened, the popping beads fall into the accommodating cavity on the conveyor belt in rows under the action of gravity.

[0022] The rubbing belt 3 is arranged on the mounting frame 33, and the rubbing belt is driven by a motor, and the motor is mounted on the mounting frame 33. The bracket 1 is provided with a slide rail 11, and the mounting frame 33 is slidably arranged on the slide rail 11. Further, the mounting frame 33 is provided with a slide rail 2 34, and the slide rail 2 34 cooperates with the slide rail 11, so that the rubbing belt can be easily dragged out from the bracket, so as to facilitate the replacement of the rubbing belt and the maintenance of the rubbing belt and its driving system. The rubbing belt 3 is located below the conveyor belt 2 and can contact the bottom of the explosive beads in the accommodating cavity. The rubbing belt 3 is made of transparent or translucent material, and a transparent or translucent support plate 31 for supporting the rubbing belt is arranged below the rubbing belt 3. A cleaning roller brush 2 32 for cleaning the rubbing belt 3 is also installed on the mounting frame 33, which rotates to contact the rubbing belt. It also includes a light source 9 arranged below the rubbing belt 3 and irradiated at the intersection of the conveyor belt 2 and the rubbing belt 3.

[0023] The camera 5 is aimed at the intersection of the conveyor belt 2 and the rubbing belt 3. During the detection, the light source is irradiated upward, and the light passes through the support plate, the rubbing belt, and the bursting beads in sequence and is photographed by the camera.

[0024] A suction pipe is provided above the conveyor belt 2 in front of the camera 5, and an air blowing pipe is provided below the conveyor belt corresponding to the suction pipe, and the number of the air blowing pipes corresponds to the number of the accommodating cavities in a row on the conveyor belt 2. The suction pipe includes a suction pipe 61 for defective products and a suction pipe 62 for repairable products, and the air blowing pipe includes an air blowing pipe 1 81 and an air blowing pipe 2 82 corresponding to the suction pipe 61 for defective products and the suction pipe 62 for repairable products, respectively.

[0025] The accommodating cavity on the conveyor belt pushes the bursting beads forward, and the rubbing belt pushes the bottom of the bursting beads to rotate sideways. During the journey at the intersection of the conveyor belt and the rubbing belt, the camera keeps taking pictures, and then transmits the pictures to the image processing device for picture synthesis processing to obtain a complete three-dimensional scanning structure of the bursting beads, which can clearly display the all-round picture information of the bursting beads, so as to judge whether there are defects in the bursting beads and whether these defects can be repaired, and then control the valves of the suction pipe and the blowing pipe to open or close through the PLC, blow up the bursting beads, and pass through the suction pipe to the defective product box 71 or the repairable product box 72, and the qualified products fall into the qualified product box 73 along the conveyor belt.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high-speed screening system for popping beads, characterized in that: include: A frame (1), a conveyor belt (2) arranged on the frame (1) for conveying popping beads (4), a rubbing belt (3) arranged crosswise with the conveyor belt (2), and a camera (5) for photographing the popping beads; the conveyor belt (2) is provided with a receiving cavity (21) for receiving the popping beads, the bottom of the receiving cavity (21) is a through hole, the rubbing belt (3) is located below the conveyor belt (2) and can contact the bottom of the popping beads in the receiving cavity, and the camera (5) is aimed at the intersection of the conveyor belt (2) and the rubbing belt (3).

2. The high-speed screening system for popping beads according to claim 1, characterized in that: It also comprises a light source (9) which is arranged below the rubbing belt (3) and irradiates towards the intersection of the conveyor belt (2) and the rubbing belt (3); the rubbing belt (3) is made of a transparent or translucent material.

3. The high-speed screening system for popping beads according to claim 1, characterized in that: The accommodating cavity (21) is a rectangular perforation, the side length of which is adapted to the diameter of the bursting beads, and supporting plates (22) are provided below the conveyor belt (2) on both sides of the rubbing belt (3).

4. The high-speed screening system for popping beads according to claim 1, characterized in that: A transparent or translucent support plate (31) for supporting the rubbing belt is arranged below the rubbing belt (3).

5. The high-speed screening system for popping beads according to claim 1 is characterized in that: It also includes a cleaning roller brush 1 (23) for cleaning the conveyor belt (2) and a cleaning roller brush 2 (32) for cleaning the rubbing belt (3) and ...2 (32) for cleaning the rubbing belt (3) and a rubbing belt.

6. The high-speed screening system for popping beads according to claim 1, characterized in that: The bracket (1) is provided with a slide rail (11), the rubbing belt (3) is provided on a mounting frame (33), and the mounting frame (33) is slidably provided on the slide rail (11).

7. The high-speed screening system for popping beads according to claim 1, characterized in that: A suction pipe is arranged above the conveyor belt (2) in front of the camera (5), and an air blowing pipe is arranged below the conveyor belt corresponding to the suction pipe, and the number of the air blowing pipes corresponds one-to-one to the number of the accommodating cavities in a row on the conveyor belt (2).

8. The high-speed screening system for popping beads according to claim 7, characterized in that: The straws include a defective straw (61) and a repairable straw (62), and the air blowing pipes include an air blowing pipe 1 (81) and an air blowing pipe 2 (82) corresponding to the defective straw (61) and the repairable straw (62), respectively.

9. The high-speed screening system for popping beads according to any one of claims 1 to 8, characterized in that: It also includes a hopper (74) arranged on the head end of the conveyor belt (2).

Images