A cigarette case crease detection device

Abstract

The present invention relates to the technical field of cigarette case detection, and discloses a cigarette case crease detection device, which includes a frame, a cigarette case suction mechanism, an imaging mechanism, and a cigarette case rejection mechanism installed on the frame; the cigarette case suction mechanism includes a suction cup body, a lead screw, and a lead screw nut. A cross beam is connected between the suction cup body and the lead screw nut. The lead screw nut penetrates and is fixed on the cross beam. The lower end of the lead screw is connected to a rolling bearing, and the upper end of the lead screw is fixedly connected to the output shaft of a stepping motor. The imaging mechanism includes a detection frame. CCD cameras are arranged on all four sides of the detection frame. A spray kettle is fixedly arranged on the side of the detection frame close to the lead screw. The nozzle of the spray kettle can cooperate with the side of the cigarette case to spray marks. The cigarette case rejection mechanism includes a rejection cylinder and a scanner for identifying marks. The scanner and the rejection cylinder are arranged side by side on the bottom plate. The structure of the present invention is simple and easy to operate, and it is possible to complete the inspection of the cigarette case crease through a one-time shooting without flipping the cigarette case, and the detection performance is reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of cigarette case detection, and particularly relates to a cigarette case crease detection device. Background Art

[0002] As is well known, hard cigarette cases are formed by folding cigarette case paper along the crease positions. After folding, the cigarette cases have distinct edges and corners. The cigarette case has a total of 12 edges, which correspond to 12 creases. Scratches are likely to occur at the crease positions, forming defects. These defects have a bad impact on the visual sense of consumers and affect their purchasing desire, and are also likely to be subject to customer complaints. Therefore, in order to prevent the defects at the crease positions of cigarette cases for selling cigarettes from reaching consumers, it is necessary to inspect the defects at the crease positions of cigarette cases before the cigarette cases are packed with cigarette sticks. The existing technology mainly manually flips the cigarette cases and conducts sampling inspection on the defects at the crease positions of the cigarette cases. The detection efficiency is low, and due to the large number of creases on the cigarette cases, it is easy to miss detections during inspection by personnel. Summary of the Invention

[0003] The purpose of the present invention is to provide a cigarette case crease detection device to solve the problems in the background art and achieve automatic detection of defects at the crease positions of cigarette cases, thereby improving the detection efficiency.

[0004] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0005] A cigarette case crease detection device includes a frame, on which a cigarette case suction mechanism, an imaging mechanism, a cigarette case rejection mechanism and a central controller are installed;

[0006] The frame includes a main support, a bottom plate fixedly arranged below the main support, and a side plate fixedly arranged on the side of the main support. A photoelectric sensor and a suction pump are fixedly arranged on the bottom plate, and a stepping motor is fixedly installed on the side plate. The photoelectric sensor, the suction pump and the stepping motor are all electrically connected to the central controller;

[0007] The cigarette case suction mechanism includes a suction cup body for sucking the cigarette case, a lead screw and a lead screw nut. The lead screw and the lead screw nut form a ball screw pair. By rotating the lead screw, the lead screw nut can be moved along the direction of the lead screw. A plurality of round holes are opened at the suction end of the suction cup body. An air pipe is connected between the plurality of round holes and the suction pump. A cross beam is connected between the suction cup body and the lead screw nut. The lead screw nut passes through the cross beam and is fixedly connected to the cross beam. A rolling bearing is installed on the bottom plate, and the lower end of the lead screw is connected to the rolling bearing, and the upper end of the lead screw is fixedly connected to the output shaft of the stepping motor;

[0008] The imaging mechanism includes a detection frame. A CCD camera is fixedly arranged on each of the four sides of the detection frame. The CCD camera is fixed on the detection frame. A spray bottle is fixedly arranged on the detection frame close to one side of the side plate. The spray bottle and the camera on the same side are arranged side by side on the detection frame. The nozzle of the spray bottle can cooperate with the side of the cigarette case to be measured for spraying marks. When the photoelectric inductor detects that a cigarette case is approaching, it sends a signal to the central controller, and the central controller controls the cigarette case suction mechanism to suck the cigarette case to the shooting area for detection.

[0009] Further defined, a T-shaped end head integrally formed with the cross beam is provided at one end of the cross beam close to the screw nut. A T-shaped slide rail matched with the T-shaped end head is fixedly arranged on the side plate. The T-shaped end head is slidably connected to the T-shaped slide rail, so that the cross beam can move directionally along the T-shaped slide rail, avoiding swinging in other directions.

[0010] Further defined, the diameter of the sucker body is smaller than the width of the cigarette case.

[0011] Further defined, a silica gel pad is attached to the end surface of the sucker body on the side close to a plurality of round holes. Suction holes corresponding to the plurality of round holes are arranged on the surface of the silica gel pad. The silica gel pad has certain buffering property and softness. When contacting the cigarette case, it can well suck the surface of the cigarette case, and at the same time can avoid scratching the surface of the cigarette case.

[0012] Further defined, the cigarette case rejection mechanism includes a rejection cylinder and a scanner for identifying marks. The scanner and the rejection cylinder are both fixed on the bottom plate. The scanner and the rejection cylinder are arranged side by side and can both be aligned with the side of the same cigarette case. When the scanner identifies a spray bottle mark, the piston rod of the rejection cylinder rejects the cigarette case with the mark from the conveyor belt.

[0013] The invention adopting the above technical scheme has the following advantages:

[0014] 1. The invention realizes the suction of the cigarette case through the ball screw pair and the suction pump, and shoots the four sides of the cigarette case through four CCD cameras. It is not necessary to flip the cigarette case, and the shooting is completed at one time and the defects at the crease of the cigarette case are automatically inspected, with high detection efficiency;

[0015] 2. The spray bottle of the device can spray marks on the cigarette case with defects. The scanner can identify the marks of the cigarette case. The rejection cylinder cooperates with the scanner to automatically reject the cigarette case with defects, avoiding the cigarette case with defects at the crease from flowing into the next process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further illustrated by the non-limiting embodiments given in the drawings;

[0017] Figure 1 is a schematic structural diagram of a cigarette case crease detection device of the present invention;

[0018] Figure 2 It is a schematic diagram of the back structure of a cigarette case crease detection device of the present invention;

[0019] Figure 3 It is Figure 1 a partial schematic diagram of the imaging mechanism in

[0020] Figure 4 It is Figure 1 a schematic diagram of the suction mechanism in

[0021] Figure 5 It is Figure 4 a schematic diagram of the structure of the suction cup body in

[0022] Figure 6 It is Figure 1 a schematic diagram when detecting the crease of the cigarette case;

[0023] The description of the main component symbols is as follows:

[0024] Main support 1, bottom plate 2, side plate 3, photoelectric inductor 4, suction pump 5, stepping motor 6, suction cup body 7, lead screw 8, lead screw nut 9, round hole 10, silicone pad 11, air pipe 12, cross beam 13, T-shaped end 14, T-shaped slide rail 15, rolling bearing 16, detection frame 17, CCD camera 18, sprayer 19, rejection cylinder 20, scanner 21, cigarette case 22, conveyor belt 23. Specific embodiments

[0025] The present invention will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that in the drawings or the description of the specification, similar or identical parts are all denoted by the same reference numerals. The implementation manners not shown or described in the drawings are the forms known to those of ordinary skill in the art. In addition, the directional terms mentioned in the embodiments, such as "up", "down", "top", "bottom", "left", "right", "front", "rear", etc., are only references to the directions of the drawings and are not used to limit the protection scope of the present invention.

[0026] As Figures 1 to 6 shown, a cigarette case crease detection device of the present invention includes a frame, on which a cigarette case suction mechanism, an imaging mechanism, a cigarette case rejection mechanism and a central controller are installed. The frame includes a main support 1, a bottom plate 2 fixedly arranged below the main support 1 and a side plate 3 fixedly arranged on the side of the main support 1. A photoelectric inductor 4 and a suction pump 5 are fixedly arranged on the bottom plate 2, and a stepping motor 6 is fixedly installed at the upper end of the side plate 3. The photoelectric inductor 4, the suction pump 5 and the stepping motor 6 are all electrically connected to the central controller.

[0027] The cigarette case sucking mechanism includes a suction cup body 7 for sucking the cigarette case, a lead screw 8 and a lead screw nut 9. A plurality of circular holes 10 are formed in the suction end of the suction cup body 7. A trachea 12 is connected between the circular holes 10 and the suction pump 5. A silica gel pad 11 is attached to the end face of the suction cup body close to the circular holes 10. Suction holes corresponding to the circular holes 10 are formed on the surface of the silica gel pad 11. One end of the suction cup body 7 far from the circular holes is fixedly connected with a cross beam 13. A T-shaped end 14 integrally formed with the cross beam is provided at one end of the cross beam 13 close to the lead screw nut 9. A T-shaped slide rail 15 is arranged in cooperation with the T-shaped end 14. The T-shaped slide rail 15 is fixedly installed on the side of the side plate 3 far from the cross beam 13. The T-shaped end 14 on the cross beam 13 penetrates through the side plate and is slidably connected with the T-shaped slide rail 15. The lead screw nut 9 vertically passes through the cross beam 13 and is fixedly connected with the cross beam 13. A rolling bearing 16 is installed on the bottom plate 2. The lower end of the lead screw 8 is in interference fit with the inner ring of the rolling bearing 16. The upper end of the lead screw 8 is fixedly connected with the output shaft of the stepping motor 6.

[0028] The imaging mechanism includes a detection frame 17. The detection frame 17 is fixed on the main bracket 1. A CCD camera 18 is provided on each of the four sides of the detection frame 17. The CCD camera 18 is fixed on the detection frame 17. A spray pot 19 is fixedly arranged on the side of the detection frame 17 close to the side plate. The spray pot 19 and the CCD camera 18 on the same side are arranged side by side on the detection frame 17. The nozzle of the spray pot 19 can cooperate with the side face of the cigarette case 22 to be detected for spraying marks. The CCD camera 18 and the spray pot 19 are electrically connected to the central controller.

[0029] The cigarette case rejection mechanism includes a rejection cylinder 20 and a scanner 21 for identifying the marks sprayed by the spray pot 19. The scanner 21 and the rejection cylinder 20 are both fixed on the bottom plate 2. The scanner 21 and the rejection cylinder 20 are arranged side by side and are both aligned with the side face of the same cigarette case 22 to be detected. When the scanner 21 identifies a mark sprayed by the spray pot, the piston rod of the rejection cylinder 20 rejects the cigarette case 22 with the mark from the conveyor belt.

[0030] In this embodiment, before use, the device is placed above the conveyor belt 23. The detection frame 17 is located directly above the conveyor belt 23 and the bottom plate 2 is flush with the conveyor belt 23. The initial position of the suction cup body 7 is that the silica gel pad 11 on the suction cup body 7 touches and is separated from the upper surface of the cigarette case 22 to be detected on the conveyor belt 23. The rising and falling heights of the suction cup body 7 are set through the control box of the stepping motor 6, so as to limit the distance of the rising and falling movement of the sucking mechanism.

[0031] During specific use, multiple cigarette cases 22 are kept at a certain distance from each other on the conveyor belt 23. The conveyor belt 23 moves from right to left. The cigarette cases 22 are transported by the conveyor belt 23 to the detection area. When the photoelectric inductor 4 senses the cigarette case 22, the central controller controls the suction pump 5 to start. The cigarette case 22 is sucked by the silica gel pad 11 attached to the sucker body 7. At the same time, the stepping motor 6 rotates clockwise to drive the sucker body 7 to move to the set rising height. The cigarette case 22 is sucked to the shooting position of the CCD camera 18 along with the sucker body 7. The four CCD cameras 18 capture the images of the four sides of the cigarette case 22 to form the image information for detecting the creases of the to-be-detected cigarette case 22, and transmit the images to the information processing module of the central controller. The information processing module calculates and processes the received information according to the preset mode and calculation program to obtain the detection result. When defects are detected at the crease of the cigarette case 22, the central controller controls the nozzle of the sprayer 19 to aim at the side of the cigarette case 22 on the same side as the sprayer 19 for marking. After the cigarette case 22 is detected in the shooting area, the stepping motor 6 rotates counterclockwise to drive the sucker body 7 to move downward. After the sucker body 7 descends to the initial position, the suction pump 5 stops. The cigarette case 22 detaches from the silica gel pad 11 and continues to move forward along with the conveyor belt 23. When the cigarette case 22 passes through the rejection cylinder, the scanner 21 will identify the cigarette case 22. If a mark is identified on the side of the cigarette case 22, the piston rod of the rejection cylinder 20 rejects the cigarette case 22 with the mark from the conveyor belt 23;

[0032] The conveyor belt 23 continues to convey the cigarette case 22 until the photoelectric inductor 4 senses the next cigarette case 22, and then the crease detection of the next cigarette case 22 can be carried out.

[0033] The above has introduced in detail a cigarette case crease inspection device provided by the present invention. The description of the specific embodiments is only used to help understand the technical solution of the present invention rather than to limit it. Those of ordinary skill in the art should understand that any modification or equivalent replacement of the technical solution of the present invention, without departing from the purpose and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A cigarette case crease detection device, characterized in that: it includes a frame, on which a cigarette case suction mechanism, an imaging mechanism, a cigarette case rejection mechanism and a central controller are installed; The frame includes a main support, a bottom plate fixedly arranged below the main support and a side plate fixedly arranged on the side of the main support. A photoelectric sensor and an air suction pump are fixedly arranged on the bottom plate, and a stepping motor is fixedly installed on the side plate. The photoelectric sensor, the air suction pump and the stepping motor are all electrically connected to the central controller; The cigarette case suction mechanism includes a suction cup body for sucking the cigarette case, a lead screw and a lead screw nut. The lead screw and the lead screw nut form a ball screw pair. A number of round holes are opened on the suction end of the suction cup body. An air pipe is connected between the round holes and the air suction pump. A cross beam is connected between the suction cup body and the lead screw nut. The lead screw nut passes through the cross beam and is fixedly connected to the cross beam. A rolling bearing is installed on the bottom plate. The lower end of the lead screw is connected to the rolling bearing, and the upper end of the lead screw is fixedly connected to the output shaft of the stepping motor; The imaging mechanism includes a detection frame. A CCD camera is provided on each of the four sides of the detection frame. The CCD camera is fixed on the detection frame. A sprayer is fixedly arranged on the side of the detection frame close to the lead screw. The sprayer and the camera on the same side are arranged side by side on the detection frame; The cigarette case rejection mechanism includes a rejection cylinder and a scanner. The scanner and the rejection cylinder are both fixed on the bottom plate, and the scanner and the rejection cylinder are arranged side by side.

2. The cigarette case crease detection device according to claim 1, characterized in that: One end of the cross beam close to the lead screw nut is provided with a T-shaped end head integrally formed with the cross beam. A T-shaped slide rail is fixedly arranged on the side plate and is matched with the T-shaped end head. The T-shaped end head is slidably connected to the T-shaped slide rail.

3. The cigarette case crease detection device according to claim 2, characterized in that: The diameter of the suction cup body is smaller than the width of the cigarette case.

4. The cigarette case crease detection device according to claim 1, characterized in that: A silica gel pad is attached to the end face of the suction cup body on the side close to the round hole, and suction holes corresponding to the round holes on the suction cup body are opened on the surface of the silica gel pad.

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