Capsule vision inspection machine

Abstract

The application discloses a capsule visual detection machine, which comprises a hopper, a notch, a material taking device, a material dripping groove, an arrangement device and a detection device, wherein the material taking device, the detection device and the arrangement device are connected with a PLC controller; the front wall of the hopper is provided with the notch; the material taking device comprises a motor, a rotating wheel, a cavity, a plurality of suction nozzles, a plurality of channels and a suction interface; the rotating wheel driven by the motor is arranged on the front wall of the hopper through a support; the rear end of the rotating wheel penetrates through the notch and is located in the hopper; the peripheral surface of the rotating wheel is provided with the uniformly distributed suction nozzles; and the cavity is arranged at the central position of the rotating wheel; and each suction nozzle is communicated with the cavity through a channel arranged on the rotating wheel. Compared with the prior art, the capsule visual detection machine can reduce noise, has good feeding stability, reduces the missed detection rate and has good reliability.

Description

[Technical Field]

[0001] This invention relates to the technical field of capsule inspection equipment, and in particular to the technical field of a capsule visual inspection machine. [Background Technology]

[0002] In the current capsule production process, defects are inevitable, such as holes, cracks, uneven lengths, dented shells, and cut edges. Traditional methods primarily rely on manual visual inspection to pick out defective products. This method's effectiveness directly depends on the attitude of each picker, leading to uncertainty in inspection results, low accuracy, high manual operation costs, low efficiency, and high labor intensity. To address this issue, mechanized capsule inspection machines have emerged, but they still have some shortcomings: 1. Vibration feeding generates significant noise, and the feeding stability is not high; 2. Capsules cannot rotate during inspection, so the camera can only capture the upper part of the capsule, not the lower part, resulting in missed detections. [Summary of the Invention]

[0003] The purpose of this invention is to solve the problems in the prior art and to propose a capsule vision inspection machine that can reduce noise, improve feeding stability, and reduce the missed detection rate.

[0004] To achieve the above objectives, this invention proposes a capsule vision inspection machine, comprising a hopper, a slot, a material handling device, a material flow channel, an arrangement device, and a detection device. The material handling device, detection device, and arrangement device are all connected to a PLC controller. The front wall of the hopper has a slot. The material handling device includes a motor, a rotating wheel, a cavity, several suction nozzles, several channels, and an air intake port. A rotating wheel driven by the motor is mounted on the front wall of the hopper via a support. The rear end of the rotating wheel passes through the slot and is located inside the hopper. The circumference of the rotating wheel has evenly distributed suction nozzles. A cavity is located at the center of the rotating wheel. Each suction nozzle communicates with the cavity through a channel on the rotating wheel. An air intake port is located at the center of the rotating wheel, with one end communicating with the cavity and the other end rotatably and sealingly connected to the suction end of a negative pressure fan. The high end of the material flow channel is located below the front end of the rotating wheel and can hold the capsules fixed on the suction nozzles. The material is scraped off. A sorting device is provided at the lower end of the material trough. This device is used to place capsules onto a detection device in front of it. The detection device includes a base, a slot, a camera, a hollow rotating shaft, a motor, a capsule suction nozzle, a baffle, a qualified product outlet, a defective product outlet, and an electric push rod. The base has a slot, and a camera corresponding to the slot is mounted on the base via a support. The base has a rotatable hollow rotating shaft and a motor that drives the hollow rotating shaft. The rear end of the hollow rotating shaft has a capsule suction nozzle located inside the front end of the slot. The front end of the hollow rotating shaft is connected to an electric valve via a rotatable pipe joint. The electric valve is connected to the suction end of a negative pressure fan. The back of the base has an electric push rod, and the piston rod of the electric push rod has a baffle that blocks the inner end of the slot. The baffle has a qualified product outlet and a defective product outlet above and below the slot, respectively. A sensor switch is embedded at the rear end of the slot.

[0005] Preferably, the material trough is composed of a V-shaped trough and a scraper located at the high end of the V-shaped trough.

[0006] Preferably, a baffle is provided on one inner wall of the V-shaped groove.

[0007] Preferably, the arranging device includes an arranging mechanism and a material handling mechanism located at the output end of the arranging mechanism.

[0008] Preferably, the arrangement mechanism includes a body and an arrangement hole provided on the body, the arrangement hole being composed of a frustum hole and a through hole communicating with the lower end of the frustum hole.

[0009] Preferably, the upper end of the body is provided with a rear open panel.

[0010] Preferably, the material handling mechanism includes a drive motor, a sector-shaped body, a receiving groove, an air intake channel, a connection port, a solenoid valve, and a contact switch. The drive motor has a sector-shaped body on its rotating shaft. The front end of the sector-shaped body has a receiving groove whose upper end corresponds to the through hole. The sector-shaped body has an air intake channel with one end connected to the rear end of the receiving groove. The other end of the air intake channel is connected to the input end of the connection port on the sector-shaped body. The output end of the connection port is connected to the suction end of the negative pressure fan. The connection port is equipped with a solenoid valve. The lower end of the receiving groove is embedded with a contact switch.

[0011] Preferably, lighting lamps are embedded in both the upper and lower side walls of the slot, and lighting lamps located inside the slot are embedded in the stop body.

[0012] Preferably, the motor's rotating shaft is provided with a driving synchronizing pulley, the hollow rotating shaft is provided with a driven synchronizing pulley, and the driving and driven synchronizing pulleys are provided with a synchronizing belt.

[0013] Preferably, both the qualified product outlet and the defective product outlet are provided with a conveying pipe at the end away from the base.

[0014] The beneficial effects of this invention are as follows: The suction nozzle of this invention, under negative pressure, draws in capsules from the hopper. A motor drives a rotating wheel to rotate, causing the suction nozzle with the fixed capsules to pass over a scraper. The scraper removes the capsules from the suction nozzle and they fall into the discharge trough, reducing noise and improving feeding stability. The negative pressure fixes the capsules in the slot onto the capsule suction nozzle. A motor drives a hollow rotating shaft to rotate, causing the capsules to rotate 360 ​​degrees through the capsule suction nozzle. A camera scans and captures the rotating capsules, transmitting the image signal to a PLC controller. The PLC controller performs feature processing on the image data, identifying and quantifying defective features. Then, the PLC controller controls an electric push rod to move a stop body to select the correct outlet (either a qualified or defective product outlet) to align with the slot. The capsules are discharged from either the qualified or defective outlet, reducing the false negative rate and improving reliability.

[0015] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0016] Figure 1 This is a schematic diagram of the structure of a capsule vision inspection machine according to the present invention;

[0017] Figure 2 This is a top view of the detection device.

[0018] In the diagram: 1-Hopper, 2-Groove opening, 3-Material handling device, 4-Material chute, 5-Arranging device, 6-Detection device, 7-Negative pressure fan, 8-PLC controller, 31-Motor, 32-Rotating wheel, 33-Cavity, 34-Nose, 35-Channel, 36-Suction interface, 37-Support, 41-V-shaped groove, 42-Scraper, 43-Baffle, 51-Arranging mechanism, 52-Material handling mechanism, 511-Body, 512-Frustum hole, 513-Through hole, 514-Enclosure, 521-Drive motor, 522- 523-Receiving groove, 524-Suction channel, 525-Connection port, 526-Solenoid valve, 60-Support body, 61-Base, 62-Slot, 63-Camera, 64-Hollow rotating shaft, 65-Motor, 66-Capsule suction nozzle, 67-Block, 68-Qualified product discharge port, 69-Defective product discharge port, 610-Electric push rod, 611-Conveying pipe, 612-Lighting lamp, 613-Induction switch, 614-Active synchronous pulley, 615-Driven synchronous pulley, 616-Synchronous belt, 617-Electric valve.

Detailed Implementation Methods

[0019] See Figure 1 , 2This invention discloses a capsule vision inspection machine, comprising a hopper 1, a slot 2, a material handling device 3, a material flow channel 4, an arrangement device 5, and a detection device 6. The material handling device 3, the detection device 6, and the arrangement device 5 are all connected to a PLC controller 8. The slot 2 is provided on the front wall of the hopper 1. The material handling device 3 includes a motor 31, a rotating wheel 32, a cavity 33, several suction nozzles 34, several channels 35, and an air intake 36. A rotating wheel 32, driven by the motor 31, is mounted on the front wall of the hopper 1 via a support 37. The rear end of the rotating wheel 32 passes through the slot 2 and is located inside the hopper 1. The circumference of the rotating wheel 32 is provided with evenly distributed suction nozzles 34. A cavity 33 is located at the center of the rotating wheel 32. Each suction nozzle 34... All are connected to the cavity 33 through a channel 35 on the rotating wheel 32. The rotating wheel 32 has a suction port 36 at its center, one end of which is connected to the cavity 33, and the other end is rotatably and sealed to the suction end of the negative pressure fan 7. The high end of the material trough 4 is located below the front end of the rotating wheel 32 and can scrape off the capsules fixed on the suction nozzle 34. The low end of the material trough 4 has an arrangement device 5, which is used to place the capsules on the detection device 6 in front of it. The detection device 6 includes a base 61, a slot 62, a camera 63, a hollow rotating shaft 64, a motor 65, a capsule suction nozzle 66, a baffle 67, a qualified product outlet 68, a defective product outlet 69, and an electric push rod 610. The base 61 has a slot 62. A camera 63 corresponding to the slot 62 is mounted on the base 61 via a support body 60. The base 61 has a rotatable hollow shaft 64 and a motor 65 that drives the hollow shaft 64. A capsule suction nozzle 66 is located at the rear end of the hollow shaft 64 within the front end of the slot 62. An electric valve 617 is connected to the front end of the hollow shaft 64 via a rotatable pipe joint. The electric valve 617 is connected to the suction end of a negative pressure fan 7. An electric push rod 610 is located on the back of the base 61. A baffle 67 is provided on the piston rod of the electric push rod 610 to block the inner end of the slot 62. The baffle 67 has a qualified product outlet 68 above and a defective product outlet 69 below the slot 62, respectively. A [missing information - likely a device or component] is embedded at the rear end of the slot 62. The inductive switch 613; the material chute 4 is composed of a V-shaped trough 41 and a scraper 42 disposed in the high end of the V-shaped trough 41; a baffle 43 is provided on one inner side wall of the V-shaped trough 41; the arrangement device 5 includes an arrangement mechanism 51 and a material handling mechanism 52 located at the output end of the arrangement mechanism 51; the arrangement mechanism 51 includes a body 511 and an arrangement hole provided on the body 511; the arrangement hole is composed of a frustum hole 512 and a through hole 513 communicating with the lower end of the frustum hole 512; the upper end of the body 511 is provided with a rear-end open enclosure 514; the material handling mechanism 52 includes a drive motor 521, a sector 522, a receiving groove 523, an air intake channel 524, a connection port 525, a solenoid valve 526, and a contact switch 527.The drive motor 521 has a fan-shaped body 522 on its rotating shaft. The front end of the fan-shaped body 522 has a receiving groove 523 whose upper end corresponds to the through hole 513. The fan-shaped body 522 has an air intake channel 524, one end of which communicates with the rear end of the receiving groove 523. The other end of the air intake channel 524 communicates with the input end of a connection port 525 on the fan-shaped body 522. The output end of the connection port 525 is connected to the suction end of the negative pressure fan 7. A solenoid valve 526 is provided on the connection port 525. A contact switch 527 is embedded at the lower end of the slot 523. Illumination lamps 612 are embedded on both the upper and lower side walls of the slot 62. An illumination lamp 612 located within the slot 62 is embedded on the baffle 67. A driving synchronous pulley 614 is provided on the rotating shaft of the motor 65. A driven synchronous pulley 615 is provided on the hollow rotating shaft 64. A synchronous belt 616 is provided on the driving synchronous pulley 614 and the driven synchronous pulley 615. A conveying pipe 611 is provided at the end of both the qualified product outlet 68 and the defective product outlet 69 away from the base 61.

[0020] Working process of this invention:

[0021] In the operation of this capsule visual inspection machine, capsules are poured into hopper 1. Under the action of negative pressure fan 7, suction nozzle 34 picks up the capsules in hopper 1. PLC controller 8 controls motor 31 to start, driving rotating wheel 32 to rotate. Rotating wheel 32 drives suction nozzle 34, which has capsules fixed on it, to pass over scraper 42. Scraper 42 scrapes the capsules off suction nozzle 34 and they fall into material trough 4, then automatically slide into arrangement hole. The capsules in arrangement hole automatically slide into receiving groove 523 and trigger contact switch 527. Contact switch 527 sends a signal to PLC controller 8, then PLC controller 8 controls solenoid valve 526 to open. Under the action of negative pressure, the capsules falling into receiving groove 523 are fixed therein. Then PLC controller 8 controls drive motor 521 to start, driving fan-shaped body 522 to rotate 90 degrees counterclockwise, so that receiving groove 523 is engaged with slot hole 62. Then PLC controller 8 controls solenoid valve 526 to close. At this time, the capsules in receiving groove 523 automatically... When the capsule falls into the slot 62, the induction switch 613 senses the capsule in the slot 62 and sends a signal to the PLC controller 8. The PLC controller 8 controls the electric valve 617 to open. Under the action of negative pressure, the capsule is fixed on the capsule suction nozzle 66. At the same time, the PLC controller 8 controls the motor 65 to rotate, which drives the hollow shaft 64 to rotate through the cooperation of the active synchronous wheel 614, the driven synchronous wheel 615 and the synchronous belt 616. The hollow shaft 64 drives the capsule to rotate 360 ​​degrees through the capsule suction nozzle 66. The camera 63 scans and takes pictures of the rotating capsule and transmits the image signal to the PLC controller 8. The PLC controller 8 performs feature processing on the image data transmitted by the camera, identifies and quantifies the defect features of the image, and then controls the electric push rod 610 to drive the baffle 67 to move to select the qualified product outlet 68 or the defective product outlet 69 to correspond with the slot 62. The capsule is discharged from the qualified product outlet 68 or the defective product outlet 69.

[0022] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A capsule vision inspection machine characterized by: Including hopper (1), slot (2), material taking device (3), material dripping groove (4), arrangement device (5) and detection device (6), the material taking device (3), detection device (6) and arrangement device (5) are all connected with PLC controller (8), the front wall of the hopper (1) is equipped with slot (2), the material taking device (3) includes motor (31), rotating wheel (32), cavity (33), several suction nozzles (34), several passages (35) and suction interface (36), the front wall of the hopper (1) is equipped with rotating wheel (32) by support (37) by motor (31) drive rotation, the rear end of rotating wheel (32) passes through slot (2) and is located in hopper (1), the peripheral surface of rotating wheel (32) is equipped with evenly distributed suction nozzle (34), the central position of rotating wheel (32) is equipped with cavity (33), each described suction nozzle (34) is communicated with cavity (33) by being equipped with a passage (35) on rotating wheel (32), the central position of rotating wheel (32) is equipped with suction interface (36) with one end and cavity (33) communication, the other end and the suction end of negative pressure fan (7) rotatable seal connection, the high end of the material dripping groove (4) is located below the front end of rotating wheel (32) and can scrape off the capsule fixed on suction nozzle (34), the low end of the material dripping groove (4) is equipped with arrangement device (5), the arrangement device (5) is used to place the capsule on the detection device (6) in front of it, the detection device (6) includes base (61), slot hole (62), camera (63), hollow rotating shaft (64), motor (65), capsule suction nozzle (66), stop body (67), qualified product discharge port (68), substandard product discharge port (69) and electric push rod (610), the base (61) is equipped with slot hole (62), the base (61) is equipped with camera (63) corresponding with slot hole (62) by support body (60), the base (61) is equipped with rotatable hollow rotating shaft (64) and motor (65) for driving hollow rotating shaft (64) rotation, the rear end of hollow rotating shaft (64) is equipped with capsule suction nozzle (66) located in the front end of slot hole (62), the front end of hollow rotating shaft (64) is connected with electric valve (617) by rotatable pipe joint, the electric valve (617) is connected with the suction end of negative pressure fan (7), the back of base (61) is equipped with electric push rod (610), the piston rod of electric push rod (610) is equipped with stop body (67) blocking the inner end of slot hole (62), the stop body (67) is equipped with qualified product discharge port (68) and substandard product discharge port (69) above and below slot hole (62) respectively, the rear end of slot hole (62) is embedded with inductive switch (613), the material dripping groove (4) is composed of V-shaped groove body (41) and scraper (42) in the high end of V-shaped groove body (41), the arrangement device (5) includes arrangement mechanism (51) and takes and places material mechanism (52) in the output end of arrangement mechanism (51).

2. A capsule vision inspection machine as claimed in claim 1, characterized in that: The V-shaped groove body (41) is provided with a baffle (43) on an inner side wall.

3. The capsule vision inspection machine of claim 1, wherein: The arrangement mechanism (51) comprises a body (511) and arrangement holes provided on the body (511), and the arrangement holes are composed of a circular truncated cone hole (512) and a straight-through hole (513) in communication with the lower end of the circular truncated cone hole (512).

4. A capsule vision inspection machine as claimed in claim 3, wherein: The upper end of the body (511) is provided with a fence (514) with an open rear end.

5. The capsule vision inspection machine of claim 1, wherein: The taking and placing mechanism (52) comprises a driving motor (521), a sector (522), a containing groove (523), an air suction channel (524), a connecting port (525), an electromagnetic valve (526) and a contact switch (527), the driving motor (521) is provided with the sector (522) on the rotating shaft, the sector (522) is provided with the containing groove (523) with the upper end corresponding to the straight-through hole (513) at the front end, the sector (522) is provided with the air suction channel (524) with one end in communication with the rear end of the containing groove (523), the other end of the air suction channel (524) is in communication with the input end of the connecting port (525) provided on the sector (522), the output end of the connecting port (525) is connected with the suction end of the negative pressure fan (7), the connecting port (525) is provided with the electromagnetic valve (526), and the lower end of the containing groove (523) is inlaid with the contact switch (527).

6. The capsule vision inspection machine of claim 1, wherein: The upper and lower side walls of the groove hole (62) are inlaid with the illuminating lamps (612), and the baffle (67) is inlaid with the illuminating lamp (612) located in the groove hole (62).

7. The capsule vision inspection machine of claim 1, wherein: The rotating shaft of the motor (65) is provided with a driving synchronous wheel (614), the hollow rotating shaft (64) is provided with a driven synchronous wheel (615), and the driving synchronous wheel (614) and the driven synchronous wheel (615) are provided with a synchronous belt (616).

8. A capsule vision inspection machine as claimed in any one of claims 1 to 7, characterized in that: The qualified product discharge port (68) and the substandard product discharge port (69) are provided with the material conveying pipes (611) away from one end of the base (61).

Images