CN212932431U

CN212932431U - Delaying structure for cigarette case appearance defect detection system

Info

Publication number: CN212932431U
Application number: CN202021652959.0U
Authority: CN
Inventors: 吕祥敏; 胡兴锋; 赵朋贤; 蔡利; 谭广璐; 彭忠; 唐杰; 周维; 朱立军; 朱玲; 周浩; 陈云璨; 郑利锋
Original assignee: Chongqing China Tobacco Industry Co Ltd
Current assignee: Chongqing China Tobacco Industry Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-04-09
Anticipated expiration: 2030-08-07

Abstract

The utility model relates to a delay structure for a cigarette case appearance defect detection system, which relates to the technical field of detection equipment and comprises a frame, a conveyor belt, a rotating roller, an industrial camera, a feeding structure and a baffle plate on one side of the conveyor belt, wherein the baffle plate is provided with a chute, the peripheral area of the chute below the industrial camera is provided with a plurality of positioning frames which are provided with notches and are evenly distributed on the outer surface of the conveyor belt, and one side of each positioning frame is hinged with the conveyor belt; the sliding block is fixed on the torsion spring and slides along the sliding groove; an elastic part is arranged in a gap in the middle of the conveyor belt, the top end of the elastic part is arc-shaped, and the elastic part is positioned below the industrial camera; the stepping motor is fixed on the rack, the driving block is fixed on an output shaft of the stepping motor and is positioned at one end of the notch, which is far away from the feeding structure, and the cigarette box is blocked below the industrial camera by the elastic piece, so that the retention time of the cigarette box below the industrial camera is increased, and the appearance defect detection quality of the cigarette box is improved.

Description

Delaying structure for cigarette case appearance defect detection system

Technical Field

The invention relates to the technical field of detection equipment, in particular to a delaying structure for an appearance defect detection system of a cigarette case.

Background

The outer surface of the cigarette case is printed with an appearance image, and if the position, color and shape of the image and the shape of the cigarette case are defective, the packaging qualification rate of the cigarette case is reduced.

The industrial cameras are arranged at the upper position, the lower position, the front position and the rear position of a transmission belt for photographing, then the data are uploaded to a computer and compared with preset standard data, the cigarette box with the defective appearance is screened out, and the packaging qualified rate of the cigarette box is improved.

However, the cigarette boxes are detected in the conveying process, and the time for the cigarette boxes to pass through the whole process cannot be too long due to the need of ensuring that the conveying speed of the conveying belt is higher, so that the time for the cigarette boxes to pass through the industrial camera is shorter, the scanning time of the industrial camera for a single cigarette box is shorter, and the detection quality of the appearance defects of the cigarette boxes is reduced.

Disclosure of Invention

Description of the drawings in view of the above, it is an object of the present invention to provide a delay structure for a cigarette packet appearance defect inspection system, so that the conveyor belt continues to rotate while the inspected cigarette packet passes through the industrial camera, and the cigarette packet is blocked under the industrial camera for a period of time, thereby increasing the time for the cigarette packet to be scanned under the industrial camera and improving the quality of the cigarette packet appearance inspection.

The invention solves the technical problems by the following technical means: a delay structure for a cigarette case appearance defect detection system comprises a rack, a conveyor belt and a rotating roller for driving the conveyor belt to rotate, wherein an industrial camera is arranged on the rack above the conveyor belt; the feeding structure is in butt joint with the conveying belt; the baffle is arranged on one side of the conveyor belt and fixedly connected with the rack, a chute is arranged on the baffle, and a gap is formed in the peripheral area of the chute below the industrial camera; the positioning frames are uniformly distributed on the outer surface of the conveyor belt and are U-shaped like, and one side of each positioning frame is hinged with the conveyor belt; the torsional spring is fixedly connected with the positioning frame and is positioned between the positioning frame and the baffle; the sliding block is fixed at one end of the torsion spring, which is far away from the positioning frame, and slides along the sliding groove; the elastic piece is arranged in the gap of the conveyor belt, the top end of the elastic piece is arc-shaped, and the elastic piece is positioned below the industrial camera; and the output shaft of the stepping motor penetrates through the baffle plate, a driving block is fixed on the output shaft of the stepping motor, the driving block is positioned at one end of the notch, which is far away from the feeding structure, and the rotating radius of the driving block is intersected with the moving track of the sliding block.

Furthermore, a groove is formed in the sliding block, a roller rotatably connected with the sliding block is arranged in the groove, and the roller slides along the sliding groove.

Through the roller, the friction force between the sliding block and the baffle can be reduced, so that the sliding block, the torsion spring and the positioning frame move synchronously along the longitudinal direction of the conveyor belt.

Furthermore, the elastic part comprises a rubber block with an arc top end, and the rubber block is positioned in the gap and penetrates through the belt; the cylinder is connected with the bottom end of the rubber block in a sliding mode, the interior of the cylinder is hollow, and the rubber block is located on the inner side of the cylinder; and one end of the spring is fixedly connected with the rubber block, the other end of the spring is fixedly connected with the rack, and the spring is positioned on the inner side of the column body.

The cigarette case moves along with the conveying belt until the cigarette case is abutted against the arc top end of the rubber block, the cigarette case is blocked below the industrial camera by the rubber block until the conveying belt moves continuously along the positioning frame, and the cigarette case pushes the rubber block continuously until the positioning frame is abutted against the cigarette case, so that the rubber block compresses the spring and slides downwards along the inner wall of the cylinder, the rubber block stretches to the lower side of the conveying belt, after the cigarette case with adjacent positioning and detection completion passes through the upper side of the rubber block, the rubber block resets under the action of the spring to prepare for blocking the next cigarette case.

Further, the feeding structure comprises a centrifugal disc and an intermittent pushing device, a T-shaped channel communicated with the conveying belt is formed in the centrifugal disc, and the intermittent pushing device is communicated with the T-shaped channel.

The cigarette boxes are placed on the centrifugal disc in batches, slide into the T-shaped channel one by one under the action of centrifugal force, and then are pushed into the positioning frames on the conveying belt one by one through the intermittent pushing device, so that automatic charging of the cigarette boxes to be detected is realized.

Furthermore, a limiting plate is fixed on one side, far away from the conveyor belt, of the positioning frame, and the limiting plate is located at one end, far away from the opening of the positioning frame.

Furthermore, the number of the limiting plates is two, and the two limiting plates and two corners of one end, far away from the opening, of the positioning frame respectively enclose a triangle.

The invention has the beneficial effects that: the cigarette case to be detected is sent into the positioning frame on the conveying belt through the feeding structure, the cigarette case is located at the opening of the positioning frame, then the cigarette case and the positioning frame move together in the direction of the industrial camera under the action of the conveying belt until the sliding block slides to the notch, and the positioning frame overturns one hundred eighty degrees under the action of the torsion spring. And then the cigarette box continues to move until the cigarette box is blocked below the industrial camera by the elastic piece, so that the retention time of the cigarette box below the industrial camera is increased, and the detection quality of the appearance defects of the cigarette box is improved. Then under the drive of step motor, drive the drive block and rotate, the drive block drives the slider and rotates, presses the slider to the spout in once more, and the locating frame also overturns one hundred eighty degrees and prepares the material loading of next time.

Drawings

Figure 1 is a schematic diagram of the delay structure of the system for detecting the appearance defects of cigarette packets according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

FIG. 4 is a schematic view of the mechanism of the elastic member of the present invention;

wherein: 100-delay structure, 10-frame, 20-conveyor belt, 21-gap, 30-rotating roller, 40-industrial camera, 50-feeding structure, 51-centrifugal disc, 52-intermittent pushing device, 53-T-shaped channel, 60-baffle, 61-chute, 62-notch, 70-positioning frame, 80-torsion spring, 90-slide block, 91-groove, 92-roller, 110-elastic element, 111-rubber block, 112-cylinder, 113-spring, 120-stepping motor, 121-driving block and 130-limiting plate.

Detailed Description

The following description of the embodiments of the present invention is provided by way of specific examples, and those skilled in the art will appreciate the advantages and utilities of the present invention from the disclosure herein. It should be noted that the drawings provided in the following embodiments are only for illustrative purposes, are schematic drawings rather than actual drawings, and are not to be construed as limiting the invention, and in order to better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is merely for convenience of description and simplicity of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings for the above applications according to specific situations.

As shown in fig. 1 to 4, a delay structure 100 for a cigarette case appearance defect detecting system according to the present invention includes a frame 10 fixed on a workshop floor by using a locking bolt, and two rotating rollers 30 mounted on the frame 10, wherein the rotating rollers 30 are driven by a motor, a conveyor belt is connected to the two rotating rollers 30, an industrial camera 40 for scanning appearance defects of cigarette cases is fixed on the frame 10, and the industrial camera 40 is located above the conveyor belt.

A plurality of positioning frames 70 are uniformly distributed on the outer surface of the conveyor belt, and the positioning frames 70 hinged between the positioning frames 70 and the conveyor belt are of a concave frame structure. A torsion spring 80 is fixed on one side of the positioning frame 70, and a slider 90 is fixed on one end of the torsion spring 80 far away from the positioning frame 70. The rack 10 is further fixed with a baffle 60, the baffle 60 is arc-shaped and surrounds the transmission belt for a circle, the baffle 60 is located at one end of the sliding block 90, which is far away from the torsion spring 80, the baffle 60 is provided with a sliding groove 61, the track of the sliding groove 61 is parallel to the lateral outer edge of the transmission belt, and the sliding block 90 slides along the sliding groove 61 under the driving of the transmission belt. The chute 61 is provided with a notch 62 in a peripheral area below the industrial camera 40. When the sliding block 90 slides to the notch 62, the limitation of the torsion spring 80 is lost, and the positioning frame 70 rotates one hundred eighty degrees under the action of the torsion spring 80.

The end, deviating from the transmission direction, of the upper surface of the conveyor belt is butted with a feeding structure 50, the feeding structure 50 comprises a centrifugal disc 51 and an intermittent pushing device 52, the centrifugal disc 51 is large in surface area, and cigarette boxes to be detected can be conveniently placed into the centrifugal disc 51 in batches at one time. The centrifugal disc 51 is provided with a T-shaped channel 53 communicated with the conveyor belt, one end of the T-shaped channel 53 is communicated with the conveyor belt and corresponds to a positioning frame 70 at the end of the conveyor belt, a slide block 90 corresponding to the positioning frame 70 is positioned in the slide groove 61, and the opening of the positioning frame 70 faces the T-shaped channel 53. An intermittent pushing device 52 is arranged at one end of the T-shaped channel 53 along the longitudinal direction of the conveyor belt and far away from the positioning frame 70, and the intermittent pushing device 52 can adopt a crank block 90 structure and other circulating pushing structures. Under the action of centrifugal force, cigarette packets on the centrifugal disc 51 slide into the T-shaped channel 53 one by one, and then the cigarette packets in the T-shaped channel 53 are pushed to the opening of the positioning frame 70 on the conveying belt one by one through the intermittent pushing device 52, so that automatic loading of the cigarette packets to be detected is realized.

The position of the longitudinal axis of the conveyor belt is provided with a gap 21, an elastic part 110 penetrating through the upper surface of the conveyor belt is arranged in the gap 21, the bottom end of the elastic part 110 is fixedly connected with the rack 10, the top end of the elastic part 110 is arc-shaped, and the elastic part 110 is positioned below the industrial camera 40. When the sliding block 90 slides to the notch 62, the positioning frame 70 rotates one hundred eighty degrees under the driving of the torsion spring 80, so that the opening of the positioning frame 70 faces the elastic member 110. Firstly, the cigarette box at the opening of the positioning frame 70 is contacted with the elastic piece 110 and is intercepted below the industrial camera 40, so that the staying time of the cigarette box below the industrial camera 40 is increased, and the detection quality of the appearance defects of the cigarette box is improved.

A stepping motor 120 is further fixed on the frame 10, an output shaft of the stepping motor 120 penetrates through the baffle 60, a driving block 121 is fixed on the output shaft of the stepping motor 120, the driving block 121 is located at one end of the notch 62 away from the feeding structure 50, a rotation radius of the driving block 121 is intersected with a movement track of the sliding block 90, the driving block 121 is driven to rotate by the driving of the stepping motor 120, the driving block 121 drives the sliding block 90 to rotate, the sliding block 90 is pressed into the sliding groove 61 again, and the positioning frame 70 is also turned over by one hundred eighty degrees to prepare for next feeding.

Specifically, a groove 91 is formed in the slider 90, a roller 92 rotatably connected to the slider 90 is disposed in the groove 91, and the roller 92 slides along the sliding groove 61. By the roller 92, the frictional force between the slider 90 and the flapper 60 can be reduced, so that the slider 90 and the torsion spring 80 move in synchronization with the positioning frame 70 in the longitudinal direction of the conveyor belt.

Specifically, the elastic member 110 includes a rubber block 111 with an arc top end, and the rubber block 111 is located in the gap 21 and passes through the belt; the column body 112 is connected with the bottom end of the rubber block 111 in a sliding mode, the inside of the column body 112 is hollow, and the rubber block 111 is located on the inner side of the column body 112; and a spring 113 with one end fixedly connected with the rubber block 111, the other end of the spring 113 is fixedly connected with the frame 10, and the spring 113 is positioned at the inner side of the column 112. The cigarette box moves along with the conveyor belt until the cigarette box abuts against the arc-shaped top end of the rubber block 111, the cigarette box is stopped under the industrial camera 40 by the rubber block 111 until the conveyor belt moves along the positioning frame 70 continuously until the positioning frame 70 abuts against the cigarette box, the cigarette box continuously pushes the rubber block 111, so that the rubber block 111 compresses the spring 113, the rubber block 111 slides downwards along the inner wall of the cylinder 112, the rubber block 111 stretches to the lower part of the conveyor belt, after the cigarette box which is positioned adjacently and is detected passes over the rubber block 111, the rubber block 111 resets under the action of the spring 113 to be ready for stopping the next cigarette box.

Specifically, a limiting plate 130 is fixed on one side of the positioning frame 70 away from the conveyor belt, and the limiting plate 130 is located at one end away from the opening of the positioning frame 70. The cigarette case is intercepted by the rubber block 111, and the positioning frame 70 continues to move towards the direction of the rubber block 111 until the cigarette case is abutted against one end of the positioning frame 70 far away from the opening of the positioning frame. The positioning frame 70 pushes the cigarette case to move continuously in the direction of the rubber block 111, and when the rubber block 111 is pressed downward, the cigarette case can be restricted from flying out from the upper side of the positioning frame 70 by the stopper plate 130.

Specifically, the number of the limiting plates 130 is two, and the two limiting plates and the two corners of the end of the positioning frame 70 away from the opening form a triangle. By arranging the limiting plates at the two top corners of the positioning frame 70, the effect of limiting the cigarette case from flying out can be achieved well, and the shielding of the industrial camera 40 can be reduced.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.

Claims

1. The utility model provides a delay structure for cigarette case appearance imperfections detecting system, includes frame, conveyer belt and drives conveyer belt pivoted live-rollers, be provided with industry camera, its characterized in that in the frame of conveyer belt top: the feeding structure is in butt joint with the conveying belt;

the baffle is arranged on one side of the conveyor belt and fixedly connected with the rack, a chute is arranged on the baffle, and a gap is formed in the peripheral area of the chute below the industrial camera;

the positioning frames are uniformly distributed on the outer surface of the conveyor belt and are U-shaped like, and one side of each positioning frame is hinged with the conveyor belt;

the torsional spring is fixedly connected with the positioning frame and is positioned between the positioning frame and the baffle;

the sliding block is fixed at one end, far away from the positioning frame, of the torsion spring and slides along the sliding groove;

the gap is formed in the conveying belt, an elastic piece is arranged in the gap, the top end of the elastic piece is arc-shaped, and the elastic piece is located below the industrial camera;

and the output shaft of the stepping motor penetrates through the baffle plate, a driving block is fixed on the output shaft of the stepping motor, the driving block is positioned at one end of the notch, which is far away from the feeding structure, and the rotating radius of the driving block is intersected with the moving track of the sliding block.

2. A delay structure for a cigarette pack appearance defect detection system according to claim 1, wherein: the slider is provided with a groove, a roller rotatably connected with the slider is arranged in the groove, and the roller slides along the sliding groove.

3. A delay structure for a cigarette pack appearance defect detection system according to claim 2, wherein: the elastic piece comprises a rubber block with an arc-shaped top end, and the rubber block is positioned in the gap and penetrates through the belt;

the cylinder is connected with the bottom end of the rubber block in a sliding mode, the cylinder is hollow, and the rubber block is located on the inner side of the cylinder;

and one end of the spring is fixedly connected with the rubber block, the other end of the spring is fixedly connected with the rack, and the spring is positioned on the inner side of the column body.

4. A delay structure for a cigarette pack appearance defect detection system according to claim 3, wherein: the feeding structure comprises a centrifugal disc and an intermittent pushing device, a T-shaped channel communicated with the conveying belt is formed in the centrifugal disc, and the intermittent pushing device is communicated with the T-shaped channel.

5. A delay structure for a cigarette pack appearance defect detection system according to claim 4, wherein: and a limiting plate is fixed on one side of the positioning frame, which is far away from the conveyor belt, and the limiting plate is positioned at one end, which is far away from the opening of the positioning frame.

6. A delay structure for a cigarette pack appearance defect detection system according to claim 5, wherein: the number of the limiting plates is two, and the two limiting plates and two corners of one end, far away from the opening, of the positioning frame enclose a triangle respectively.