Device matched with removing wheel and used for calibrating cigarette appearance detector

Abstract

The utility model discloses a device matched with a rejecting wheel and used for calibrating a cigarette appearance detector, the cigarette appearance detector is arranged on one side of the rejecting wheel of a cigarette making and tipping machine combination, the device comprises a calibration tool, the calibration tool comprises a left clamping plate and a right clamping plate, the two clamping plates are connected through two connecting shafts, and the two connecting shafts are connected with the left clamping plate and the right clamping plate. The left end and the right end of each connecting shaft are detachably connected with the two clamping plates respectively, downwards-concave installation grooves are formed in the middles of the top ends of the two clamping plates, and the installation grooves of the two clamping plates are used for detachably installing the calibration flat plate. Penetrating holes are formed in the middle sections of the two clamping plates respectively, a calibration rod penetrates through the penetrating holes of the two clamping plates in a crossing mode, the axis of each penetrating hole is higher than the axis of each connecting shaft, and the front connecting shaft, the calibration rod and the rear connecting shaft are matched with three adjacent cigarette grooves in the circumference of the removing wheel respectively. Compared with the prior art, the cigarette appearance detector calibration device has the advantages that the cigarette appearance detector is calibrated, and the cigarette appearance detection precision of the cigarette appearance detector is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to calibration device for cigarette production, especially with the device for appearance detector calibration of cigarette appearance detection for rejecting wheel adaptation. BACKGROUND

[0002] Adopt visual appearance of cigarette to carry out detection is current mainstream technology. The effect of visual detection depends on the quality of the picture that the detector takes. The factors that influence the picture shooting quality mainly have following two points: the light source brightness change that takes a photograph, the change of camera itself parameter.

[0003] At present, in the cigarette production process, the appearance detector of cigarette based on visual technology is installed on the cigarette making machine group, and the appearance detector of cigarette is arranged outside the rejecting wheel of the cigarette making machine group to detect the appearance of the cigarette in the cigarette groove on the rejecting wheel. However, the light source brightness of the appearance detector of cigarette may change after long-time use, and the object distance, white balance and other parameters of the camera lens may change. At present, there is no device for calibrating the parameters of the appearance detector of cigarette itself, thereby affecting the picture quality taken by the appearance detector of cigarette, and further affecting the accuracy of the appearance detection result of cigarette, and reducing the appearance detection precision of cigarette. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the defects of prior art, and provides a device for appearance detector calibration of cigarette with rejecting wheel adaptation to realize the calibration of the appearance detector of cigarette itself and ensure the appearance detection precision of the appearance detector of cigarette on cigarette.

[0005] The utility model is realized through the following technical schemes:

[0006] A device for appearance detector calibration of cigarette with rejecting wheel adaptation, the cigarette making machine group includes a rejecting wheel rotatably installed on a rack, and the rejecting wheel is provided with an appearance detector of cigarette on one side. The appearance detector of cigarette is used for detecting the appearance of the cigarette in the cigarette groove on the rejecting wheel. The device includes a calibration tool, and the calibration tool includes two clamping plates. The two clamping plates are connected through front and rear connecting shafts. The left and right ends of each connecting shaft are detachably connected with the two clamping plates and are locked through a locking structure. Downward recessed installation grooves are formed in the top middle parts of the two clamping plates. Calibration plates are detachably installed in the installation grooves of the two clamping plates. Perforations are formed in the middle sections of the two clamping plates. Calibration rods are transversely arranged in the perforations of the two clamping plates. The axis of the perforation is higher than the axis of the connecting shaft. The front connecting shaft, the calibration rod and the rear connecting shaft are respectively matched with three adjacent cigarette grooves on the circumference of the rejecting wheel.

[0007] As a preferred scheme of the above device, the rejecting wheel is provided with a circle of outward convex tobacco receiving convex ring, and a plurality of tobacco grooves are uniformly distributed along the circumference of the tobacco receiving convex ring, characterized in that: the opposite side of the two clamping plates is the inner side, and the side away from each other is the outer side, the inner side of the two clamping plates is respectively provided with a soft gasket which is detachably arranged at the lower section of the inner side, the soft gasket is located below the connecting shaft, the two clamping plates are clamped at the two ends of the tobacco receiving convex ring of the rejecting wheel, and the soft gaskets are in contact with the end of the tobacco receiving convex ring.

[0008] As a preferred scheme of the above device, the soft gasket is connected with the clamping plate by screw connection, and the soft gasket is provided with a countersunk hole for the head of the screw.

[0009] As a preferred scheme of the above device, two mounting screw holes are formed in the bottom wall of the mounting groove of the clamping plate, the calibration flat plate is horizontally placed in the mounting grooves of the two clamping plates, the calibration flat plate is provided with four waist-shaped holes, the length of each waist-shaped hole extends along the left-right direction, the four waist-shaped holes correspond to the four mounting screw holes one by one, and the four bolts pass through the four waist-shaped holes one by one and are screwed in the four mounting screw holes, so that the calibration flat plate and the two clamping plates are locked and mounted.

[0010] As a preferred scheme of the above device, the connecting shaft comprises a connecting shaft body and shaft heads located at the left and right ends of the connecting shaft body, the diameter of the shaft head is smaller than that of the connecting shaft body, the clamping plate is provided with a mounting hole for the shaft head to pass through, the top of the clamping plate is provided with a locking screw hole communicating with the mounting hole, and the locking structure comprises a locking top wire which is screwed into the locking screw hole and abuts against the shaft head, so as to lock and mount the connecting shaft and the clamping plate.

[0011] As a preferred scheme of the above device, the calibration rod is a ceramic rod.

[0012] As a preferred scheme of the above device, the calibration flat plate is a white ceramic plate.

[0013] As a preferred scheme of the above device, the calibration flat plate is a latitude and longitude plate provided with transverse and longitudinal scales on the surface.

[0014] Compared with the prior art, the device has the following advantages:

[0015] The device for appearance detector calibration matched with the rejecting wheel has the advantages that the calibration tool and the rejecting wheel are clamped and mounted, and the calibration rod and various calibration flat plates are selectively mounted on the calibration tool, so that the calibration of the related parameters of the appearance detector itself is realized, and the appearance detection precision of the appearance detector on the appearance of the cigarette is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the calibration tool of the device.

[0017] Figure 2 is a perspective view of the calibration tool of the utility model.

[0018] Figure 3 is an assembly perspective view of the calibration tool and the calibration rod of the utility model.

[0019] Figure 4 is an assembly perspective view of the calibration tool and the white ceramic plate of the utility model.

[0020] Figure 5 is an assembly perspective view of the calibration tool and the warp and weft plate of the utility model.

[0021] Figure 6 is an assembly perspective view of the calibration tool and the reject wheel of the utility model.

[0022] Figure 7 is a perspective view of the calibration tool in use of the utility model.

[0023] The figure mark: 1 frame; 2 reject wheel; 3 cigarette appearance detector; 4 cigarette slot; 5 calibration tool; 6 clamping plate; 7 connecting shaft; 8 locking top screw; 9 cigarette bearing convex ring; 10 soft gasket; 11 countersunk hole; 12 screw; 13 installation groove; 14 perforation; 15 calibration rod; 16 installation screw hole; 17 waist-shaped hole; 18 bolt; 19 white ceramic plate; 20 warp and weft plate. DETAILED DESCRIPTION

[0024] The embodiment of the utility model is explained in detail below, and the embodiment is implemented under the premise of the technical scheme of the utility model, and detailed implementation mode and specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0025] Referring to Figures 1 to 7The embodiment discloses a device for cigarette appearance detector calibration matched with a rejection wheel, a cigarette making machine group comprises a rejection wheel 2 rotatably arranged on a rack 1, and a cigarette appearance detector 3 is arranged on one side of the rejection wheel 2, and appearance detection is performed on cigarettes in a cigarette groove 4 on the rejection wheel 2 through the cigarette appearance detector 3. The device comprises a calibration tool 5, the calibration tool 5 comprises two clamping plates 6, the two clamping plates 6 are connected through front and rear connecting shafts 7, the left and right ends of each connecting shaft 7 are detachably connected with the two clamping plates 6 and are locked through locking structures, the connecting shaft 7 comprises a connecting shaft 7 body and shaft heads located at the left and right ends of the connecting shaft 7 body, the diameter of the shaft head is smaller than that of the connecting shaft 7 body, mounting holes for the shaft heads to pass through are formed in the clamping plates 6, locking screw holes that are in communication with the mounting holes are formed in the top of the clamping plates 6, the locking structures comprise locking top screws 8, the locking top screws 8 are screwed into the locking screw holes and abut against the shaft heads, and locking and mounting of the connecting shaft 7 and the clamping plates 6 are realized. The rejection wheel 2 is externally provided with a circle of outwardly protruding cigarette supporting protruding rings 9, a plurality of cigarette grooves 4 are uniformly distributed along the circumference of the cigarette supporting protruding rings 9, the opposite side of the two clamping plates 6 is the inner side, and the side away from each other is the outer side, and detachable soft gaskets 10 are arranged on the inner sides of the lower sections of the two clamping plates 6, respectively, the soft gaskets 10 are located below the connecting shafts 7, the soft gaskets 10 are connected with the clamping plates 6 through screw connection, and a countersunk hole 11 for the head of a screw 12 to sink into is formed in the inner side of the soft gasket 10. The two clamping plates 6 are clamped at the two ends of the cigarette supporting protruding rings 9 of the rejection wheel 2, and the end portions of the cigarette supporting protruding rings 9 are in contact with the soft gaskets 10, through the detachable soft gaskets 10, the rejection wheel 2 can be protected from damage, and the soft gaskets 10 can be conveniently replaced.

[0026] A downwardly recessed mounting groove 13 is formed in the top middle of each clamping plate 6, and a calibration plate is detachably mounted in the mounting groove 13 of each clamping plate 6; a through hole 14 is formed in the middle of each clamping plate 6, and a calibration rod 15 is transversely arranged in the through holes 14 of the two clamping plates 6, and the calibration rod 15 is made of a ceramic rod. The axis of the through hole 14 is higher than the axes of the two connecting shafts 7, and the front connecting shaft 7, the calibration rod 15 and the rear connecting shaft 7 are respectively matched with three adjacent cigarette grooves 4 on the circumference of the rejection wheel 2.

[0027] Two mounting screw holes 16 are formed in the bottom wall of the mounting groove 13 of the clamping plate 6, the calibration plate is transversely arranged in the mounting groove 13 of the two clamping plates 6, the calibration plate is provided with four waist-shaped holes 17, the length of each waist-shaped hole 17 extends along the left-right direction, the four waist-shaped holes 17 correspond to the four mounting screw holes 16 in a one-to-one manner, four bolts 18 pass through the four waist-shaped holes 17 in a one-to-one manner and are screwed in the four mounting screw holes, and locking and mounting of the calibration plate and the two clamping plates 6 are realized.

[0028] The calibration plate comprises two types of calibration plates, one is a white ceramic plate 19, and the other is a latitude and longitude plate 20 provided with transverse and longitudinal scales on the surface.

[0029] Before use, the distance between the two clamping plates 6 of the calibration tool 5 can be adjusted by removing the width of the smoke bearing convex ring 9 on the rejector 2, so that the distance between the two clamping plates 6 matches the width of the smoke bearing convex ring 9, and the two soft gaskets 10 inside the two clamping plates 6 can be clamped at both ends of the smoke bearing convex ring 9. Then, the four locking jacks 8 are tightened to achieve the locking installation of the calibration tool 5.

[0030] When the light source brightness of the cigarette appearance detector 3 needs to be calibrated, the calibration rod 15 is needed. In order to ensure the consistency and stability of the light source brightness, a standard rod of matt ceramic close to the material of cigarette paper is used for calibration. First, the calibration rod 15 is inserted through the perforations 14 of the two clamping plates 6 of the calibration tool 5, and then the calibration tool 5 is installed on the rejector 2, so that the two clamping plates 6 of the calibration tool 5 are clamped at both ends of the smoke bearing convex ring 9, and the two soft gaskets 10 inside the two clamping plates 6 are in contact with both ends of the smoke bearing convex ring 9, respectively. At the same time, the front connecting shaft 7, the calibration rod 15 and the rear connecting shaft 7 are embedded into the three adjacent tobacco grooves 4 on the circumference of the smoke bearing convex ring 9 of the rejector 2, one by one. Then, the rejector 2 is manually rotated, so that the rejector 2 rotates and drives the calibration tool 5 to rotate together, until the calibration rod 15 of the calibration tool 5 is located at the center of the camera field of view of the cigarette appearance detector 3. The image of the area of the calibration rod 15 is captured by the camera, and the average gray value is calculated as the reference gray value for gray adjustment. Then, the knob of the light source driving system of the cigarette appearance detector 3 is adjusted to adjust the gray value to the reference gray value, so that the calibration of the light source brightness is realized.

[0031] When the object distance of the camera lens of the cigarette appearance detector 3 needs to be calibrated, the graticule board 20 is needed. First, the graticule board 20 is placed across the installation groove 13 of the two clamping plates 6, so that the graticule board 20 is centered, and the four bolts 18 are tightened to achieve the locking installation of the graticule board 20 and the two clamping plates 6. Then, the calibration tool 5 is installed on the rejector 2, and the scale on the graticule board 20 faces outward. The rejector 2 is manually rotated, so that the rejector 2 rotates and drives the calibration tool 5 to rotate together, until the graticule board 20 rotates to the center of the camera field of view of the cigarette appearance detector 3. The position of the camera lens is adjusted so that the image of the graticule board 20 captured by the camera lens is consistent with the standard image. At this time, the object distance is the standard object distance, and the position of the camera lens of the cigarette appearance detector 3 can be accurately adjusted, so as to ensure the accuracy of the subsequent shooting object distance.

[0032] When the white balance parameter of the cigarette appearance detector 3 needs to be calibrated, the white ceramic plate 19 is needed as a calibration plate. The above-mentioned latitude and longitude plate 20 is removed and replaced by the white ceramic plate 19. In the same way, the white ceramic plate 19 is photographed to obtain the white balance parameter value, which is used as the reference for white balance adjustment. The white balance parameter of the cigarette appearance detector 3 is adjusted until the white balance reference value is reached, and the calibration of the white balance parameter is realized.

[0033] The calibration tool 5 provided by the embodiment can be selectively used in cooperation with the calibration rod 15, the white ceramic plate 19 and the latitude and longitude plate 20, so as to realize the accurate calibration of the related parameters of the cigarette appearance detector 3 itself and the object distance, thereby ensuring the continuous stability of the use state of the cigarette appearance detector 3 and further ensuring the detection quality of the cigarette appearance.

[0034] The above is only a preferred embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for cigarette appearance detector calibration adapted with a rejector wheel, a cigarette making machine group comprises a rejector wheel which is rotatably installed on a frame, and a cigarette appearance detector is arranged on one side of the rejector wheel, and appearance detection is performed on the cigarette in the cigarette slot of the rejector wheel through the cigarette appearance detector, characterized in that: The device comprises a calibration tool, the calibration tool comprises two clamping plates connected by two front and rear connecting shafts, the left and right ends of each connecting shaft are detachably connected with the two clamping plates and locked by a locking structure, the top middle part of each clamping plate is provided with a downward recessed mounting groove, and the mounting grooves of the two clamping plates are used for detachably mounting a calibration plate; the middle part of each clamping plate is provided with a through hole, and the through holes of the two clamping plates are transversely provided with a calibration rod, the axis of the through hole is higher than the axis of the connecting shaft, and the front connecting shaft, the calibration rod and the rear connecting shaft are respectively matched with three adjacent flue grooves on the circumference of the removal wheel.

2. A device for calibration of a cigarette appearance detector adapted to a reject wheel as claimed in claim 1, characterized in that: The removal wheel is provided with a flue bearing convex ring protruding outward, a plurality of flue grooves are evenly distributed along the circumference of the flue bearing convex ring, the opposite side of each clamping plate is the inner side and the side away from each other is the outer side, a soft gasket is detachably arranged at the lower part of the inner side of each clamping plate, the soft gasket is located below the connecting shaft, and the two clamping plates are clamped at the two ends of the flue bearing convex ring of the removal wheel and contact the end of the flue bearing convex ring through the soft gasket.

3. A device for calibration of a cigarette appearance detector adapted to a reject wheel as claimed in claim 2, characterized in that: The soft gasket is connected with the clamping plate by screw connection, and the inner side of the soft gasket is provided with a countersunk hole for the head of the screw.

4. A device for calibration of a cigarette appearance detector adapted to a reject wheel as claimed in claim 1, characterized in that: The bottom wall of the mounting groove of the clamping plate is provided with two front and rear mounting screw holes, the calibration plate is transversely placed in the mounting grooves of the two clamping plates, the calibration plate is provided with four waist-shaped holes, the length of each waist-shaped hole extends along the left and right directions, the four waist-shaped holes correspond to the four mounting screw holes one by one, and the four bolts pass through the four waist-shaped holes one by one and are screwed in the four mounting screw holes to realize the locking and mounting of the calibration plate and the two clamping plates.

5. A device for calibration of a cigarette appearance detector adapted to a reject wheel as claimed in claim 1, characterized in that: The connecting shaft comprises a connecting shaft body and shaft heads at the left and right ends of the connecting shaft body, the diameter of the shaft head is smaller than the diameter of the connecting shaft body, the clamping plate is provided with a mounting hole for the shaft head to pass through, the top of the clamping plate is provided with a locking screw hole communicating with the mounting hole, and the locking structure comprises a locking top wire, the locking top wire is screwed into the locking screw hole and abuts against the shaft head to realize the locking and mounting of the connecting shaft and the clamping plate.

6. A device for calibration of a cigarette appearance detector adapted to a reject wheel as claimed in claim 1, characterized in that: The calibration rod is a ceramic rod.

7. A device for calibration of a cigarette appearance detector adapted to a reject wheel as claimed in claim 1, characterized in that: The calibration plate is a white ceramic plate.

8. A device for calibration of a cigarette appearance detector adapted to a reject wheel as claimed in claim 1, characterized in that: The calibration plate is a latitude and longitude plate provided with transverse and longitudinal scales on the surface. The calibration plate is a latitude and longitude plate provided with transverse and longitudinal scales on the surface.

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