A feeding structure for cigarette detection

Abstract

The application relates to the technical field of detection equipment, and discloses a feeding structure for cigarette detection, which is characterized in that: the cigarette to be detected is put into a material collecting bin; when a servo motor rotates, the servo motor drives a worm wheel to rotate, the worm wheel drives a worm to rotate, and when the worm rotates to align a strip-shaped groove with a discharging hole, the cigarette to be detected falls into a blind hole in the interior of the worm from the discharging hole and the strip-shaped groove; when the servo motor rotates, the servo motor also drives a rocker to rotate, the rocker drives a connecting rod to swing up and down, the connecting rod drives a supporting frame to swing up and down relative to a rack, and the worm swings downward relative to the supporting rod while rotating; under the joint action of centrifugal force and gravity, the cigarette slides out of the blind hole in the interior of the worm to a detection equipment; one rotation of the servo motor can complete the feeding of one cigarette to be detected, the conveying time of each cigarette is equal, the detection equipment can identify the cigarette, and the feeding speed of the cigarette can be controlled by adjusting the rotating speed of the servo motor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cigarette detection, and particularly relates to a feeding structure for cigarette detection. BACKGROUND

[0002] During batch production of cigarettes, various quality defects inevitably occur, such as empty head of a cigarette, diameter error of a cigarette, printing error of a surface text mark of a cigarette, and tobacco moisture, and the like. When the quality defects occur, the produced cigarettes need to be detected to screen out defective cigarettes.

[0003] When the existing scheme detects the cigarettes, one is to move the to-be-detected cigarettes to a detection hole of a cigarette detection device by using a mechanical hand. However, because the number of the cigarettes is huge during production, the feeding speed by using the mechanical hand cannot keep up with the production speed of the cigarettes.

[0004] Or, the cigarettes are conveyed to a detection device by using a conveying belt, and then the cigarettes on the conveying belt are manually placed into the detection hole. However, the manual feeding speed is difficult to realize uniform speed, and there is a time difference between the manual feeding speed and the cigarette detection device, which causes low detection efficiency of the cigarettes. SUMMARY

[0005] Therefore, the present application aims to provide a feeding structure for cigarette detection, so that the feeding speed of the to-be-detected cigarettes is balanced and controllable.

[0006] The present application solves the above technical problems by the following technical means: a feeding structure for cigarette detection, comprising a rack, a connecting rod hingedly connected to the rack, a rocker hingedly connected to one end of the connecting rod away from the rack, a support frame hingedly connected to the rack, a servo motor rotationally connected to one end of the rocker away from the connecting rod, the servo motor being installed on the support frame, a worm wheel fixedly connected to an output shaft of the servo motor, a worm hingedly connected to the support frame at one end of the worm, a blind hole being longitudinally formed in the interior of the worm, an opening of the blind hole being located at one end of the worm away from the support frame, a strip-shaped groove being further formed in the worm, the strip-shaped groove being in communication with the blind hole, a material collecting bin being installed above the worm, a discharging hole being formed in the bottom of the material collecting bin, the discharging hole being located directly above the strip-shaped groove, and the bottom of the material collecting bin being tangent to the outer surface of the worm.

[0007] Further, two bearings are fixedly connected to the bottom of the material collecting bin, the outer ring of the bearing is welded to the bottom of the material collecting bin, the worm passes through the inner ring of the bearing, and the material collecting bin is slidingly connected to the rack.

[0008] In this way, the bearing does not limit the normal rotation freedom of the worm when the worm rotates, and the inner ring of the bearing also slides back and forth along the longitudinal direction of the worm when the worm swings up and down. In addition, the worm also drives the material collecting bin to slide up and down along the rack under the driving of the up-and-down swinging of the worm, thereby playing a role of keeping the bottom outer side surface of the material collecting bin tangent to the outer surface of the worm.

[0009] Further, the bottom of the material collecting bin is fixed with an elastic strip, the worm is located between the elastic strip and the material collecting bin, the elastic strip is in sliding connection with the worm, and the elastic strip is located below the strip-shaped groove.

[0010] In this way, when the worm rotates to the position that the strip-shaped groove is misaligned with the discharging hole, although the cigarette in the blind hole under the centrifugal force of the worm has deviated from the strip-shaped groove, the cigarette can still be thrown out of the strip-shaped groove, and the elastic strip is arranged to limit the strip-shaped groove when the strip-shaped groove rotates to the position misaligned with the discharging hole, thereby avoiding the phenomenon that the cigarette falls during the feeding process.

[0011] Further, the elastic strip is located at the middle position of the strip-shaped groove.

[0012] In this way, the interception effect of the cigarette at the strip-shaped groove can be enhanced

[0013] Further, the upper end of the material collecting bin is in an open shape.

[0014] In this way, the cigarettes can be conveniently and quickly put into the material collecting bin in a large quantity.

[0015] Further, an inner side wall of the material collecting bin is in a slope shape.

[0016] In this way, the speed of the cigarette rolling into the bottom of the material collecting bin can be accelerated, the feeding time of the cigarette detection is shortened, and the efficiency is improved.

[0017] Further, the feeding structure further comprises a sliding rail, and the sliding rail is hinged to the end of the worm away from the support frame.

[0018] The beneficial effects of the present application are as follows: the cigarette to be detected is put into the material collecting bin, when the servo motor rotates to drive the worm gear to rotate, the worm gear drives the worm to rotate, and when the worm rotates to the position that the strip-shaped groove is aligned with the discharging hole, the cigarette to be detected falls into the blind hole in the worm from the discharging hole and the strip-shaped groove; when the servo motor rotates, the rocker also rotates to drive the connecting rod to swing up and down, the connecting rod drives the support frame to swing up and down relative to the rack, and the worm swings downward relative to the support rod when rotating, under the joint action of the centrifugal force and the gravity, the cigarette slides out of the blind hole in the worm to the detection equipment, one feeding of the cigarette to be detected can be completed when the servo motor rotates one round, the conveying time of each cigarette is equal, the detection equipment can identify the cigarette, and in addition, the feeding speed of the cigarette can be controlled by adjusting the rotating speed of the servo motor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a feeding structure for cigarette detection according to the present invention;

[0020] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 This is a top view of a feeding structure for cigarette detection according to the present invention;

[0022] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0023] Figure 5 This is a schematic diagram of the worm gear of the present invention;

[0024] Among them: 100-feeding structure, 10-frame, 20-connecting rod, 30-rocker, 40-servo motor, 50-support frame, 60-worm gear, 70-worm, 71-blind hole, 72-strip groove, 80-collection bin, 81-discharge hole, 82-bearing, 83-sloping plate, 90-elastic strip, 110-slide rail. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1 to 5 As shown, a feeding structure 100 for cigarette testing according to the present invention includes a frame 10 fixed on the factory floor, a collection bin 80 provided on the frame 10, the upper end of the collection bin 80 being open, with one open end facing upwards to facilitate the introduction of the cigarette to be tested, an inclined plate 83 being inclinedly provided on one side wall of the collection bin 80, one end of the conveyor belt conveying the cigarette to be tested being located above the inclined plate 83, the cigarette to be tested falling from the conveyor belt onto the inclined plate 83, the inclined plate 83 being able to accelerate the rolling speed of the cigarette, the cigarette rolling down the inclined plate 83 into the bottom of the collection bin 80.

[0027] The outer side of the collection bin 80, away from the inclined plate 83, is slidably connected to the frame 10. The collection bin 80 can slide up and down along the frame 10. Two bearings 82 are fixedly connected to the bottom of the collection bin 80. The outer ring of the bearing 82 is welded to the bottom of the collection bin 80. A worm gear 70 passes through the inner ring of the bearing 82, and the outer surface of the worm gear 70 is tangent to the bottom surface of the collection bin 80. Figure 3 As shown, a discharge hole 81 is provided at the bottom of the collection bin 80, such as... Figure 5 As shown, a strip groove 72 is formed on the worm gear 70, located directly below the discharge hole 81. The length of the strip groove 72 and the discharge hole 81 is slightly greater than the length of the cigarette, and the width of the strip groove 72 and the discharge hole 81 is slightly greater than the diameter of the cigarette, allowing the cigarette in the collection bin 80 to fall into the strip groove 72 through the discharge hole 81. A blind hole 71 is also formed at one end of the worm gear 70 along the longitudinal direction, communicating with the strip groove 72, allowing the cigarette that falls into the strip groove 72 to slide along the blind hole 71 to the detection equipment.

[0028] A worm gear 60 meshes above the worm 70. The worm gear 60 is driven by a servo motor 40. After the servo motor 40 starts, the worm gear 60 drives the worm 70 to rotate. When the strip groove 72 on the worm 70 rotates to be directly opposite the discharge hole 81, a cigarette in the collection bin 80 falls into the blind hole 71. Under the centrifugal force of the rotating worm 70, the cigarette slides out along the blind hole 71 to the inspection equipment for defect detection.

[0029] A support frame 50 is hinged to the frame 10. The end of the worm gear 70 furthest from the blind hole 71 is hinged to the support frame 50, and the servo motor 40 is also fixedly connected to the support frame 50. A rocker arm 30 is hinged to the output shaft of the servo motor 40, and a connecting rod 20 is hinged to the end of the rocker arm 30 furthest from the servo motor 40. When the servo motor 40 starts, it drives the worm gear 70 to rotate, and at the same time drives the rocker arm 30 to rotate. The rocker arm 30 drives the connecting rod 20 to swing, and the connecting rod 20 pushes the support frame 50 to swing up and down relative to the frame 10, thereby causing the worm gear 70 and worm wheel 60 on the support frame 50 to swing downwards while rotating. This allows the cigarette to slide downwards in the worm gear 70 under the action of gravity, accelerating the speed at which the cigarette slides out of the blind hole 71. During this process, the collection bin 80 slides back and forth relative to the frame 10 under the pull of the worm gear 70, so that the collection bin 80 and the worm gear 70 remain tangent to each other, preventing cigarettes from falling out of the collection bin 80 at will.

[0030] Specific, the bottom of the aggregate bin 80 is fixed with elastic strip 90, elastic strip 90 is made of rubber band, worm 70 is located between elastic strip 90 and aggregate bin 80, elastic strip 90 and worm 70 are slidingly connected, elastic strip 90 is located below strip-shaped groove 72. Under the action of the elastic force of elastic strip 90, it is always in contact with the outer surface of worm 70, when worm 70 rotates to the strip-shaped groove 72 towards the lower, elastic strip 90 limits the strip-shaped groove 72, avoids the cigarette from the strip-shaped groove 72 falling at will. Elastic strip 90 is located at the middle position of strip-shaped groove 72. It can enhance the interception effect of the cigarette at strip-shaped groove 72.

[0031] Specific, the feeding structure 100 further comprises a slide rail 110, the slide rail 110 is hinged to the end of the worm 70 away from the support frame 50. The end of the slide rail 110 away from the worm 70 extends to the device for detecting defects of the cigarette. When the worm 70 is placed horizontally, the slide rail 110 is located at the end of the worm 70, and the slide rail 110 and the worm 70 have an included angle therebetween. When the worm 70 is rotated downward, the slide rail 110 gradually slides to the end of the worm 70 away from the blind hole 71, until the slide rail 110 is parallel to the worm 70, the cigarette to be detected falls from the blind hole 71 onto the slide rail 110, and finally slides along the slide rail 110 to the device for detecting defects of the cigarette.

[0032] The working process of the feeding structure 100 for cigarette detection of the present application is as follows:

[0033] Start the servo motor 40, the rocker 30 is driven to rotate by the servo motor 40, the rocker 30 drives the connecting rod 20 hinged thereto to swing relative to the rack 10, and under the reaction force of the connecting rod 20 on the rocker 30, the rocker 30 drives the support frame 50 to swing up and down. The aggregate bin 80 is connected to the end of the conveying belt for conveying the cigarette, and when the cigarette on the conveying belt falls along the inclined plate 83 into the bottom of the aggregate bin 80, at the same time, the servo motor 40 drives the turbine 60 to rotate, the turbine 60 drives the worm 70 to rotate, until the strip-shaped groove 72 is aligned with the discharging hole 81, and the cigarette enters the worm 70 from the aggregate bin 80. Since the worm 70 has a centrifugal force when rotating, the cigarette inside the worm 70 is thrown in the direction of the slide rail 110, and at the same time, since the worm 70 also swings up and down, the worm 70 receives the cigarette in the aggregate bin 80 from the horizontal state, and converts into a state of rotating to the same slope relative to the slide rail 11, finally making the cigarette in the hollow rod 25 fall intermittently along the slide rail 110 under the action of the centrifugal force and gravity to the device for detecting defects of the cigarette. One rotation of the servo motor 40 can complete the feeding of one cigarette to be detected, so that the conveying time of each cigarette is equal, which is convenient for the detection device to identify the cigarette, and in addition, the feeding speed of the cigarette can be controlled by adjusting the rotation speed of the servo motor.

[0034] The above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application. The technical, shape and structure parts not described in detail in the present application are all known technologies.

Claims

1. A feeding structure for cigarette detection, characterized in that, Including racks; And a connecting rod that is hinged to the frame at one end; And a rocker arm hinged to the end of the linkage away from the frame; And, a support frame hinged to the frame; And a servo motor rotatably connected to the end of the joystick away from the connecting rod, the servo motor being mounted on the support frame; And a worm gear fixedly connected to the output shaft of the servo motor; And, a worm gear meshing with the worm wheel, one end of which is rotatably connected to the support frame, a blind hole is provided in the longitudinal direction inside the worm gear, the opening of the blind hole is located at the end of the worm gear away from the support frame, and a strip groove is also provided on the worm gear, the strip groove communicating with the blind hole; In addition, a material collection bin is installed above the worm gear, the bottom of which is provided with a discharge hole, the discharge hole being located directly above the strip groove, and the bottom outer side of the material collection bin being tangent to the outer surface of the worm gear.

2. The feeding structure for cigarette detection according to claim 1, characterized in that, Two bearings are fixedly connected to the bottom of the collection bin. The outer ring of the bearing is welded to the bottom of the collection bin, and the worm gear passes through the inner ring of the bearing. The collection bin is slidably connected to the frame.

3. The feeding structure for cigarette detection according to claim 2, characterized in that, An elastic strip is fixed to the bottom of the collection bin, and the worm gear is located between the elastic strip and the collection bin. The elastic strip and the worm gear are slidably connected, and the elastic strip is located below the strip groove.

4. The feeding structure for cigarette detection according to claim 3, characterized in that, The elastic strip is located in the middle of the strip groove.

5. The feeding structure for cigarette detection according to any one of claims 1 to 4, characterized in that, The upper part of the collection bin is open.

6. The feeding structure for cigarette detection according to claim 5, characterized in that, The material collection bin is inclined on the side wall away from the machine frame.

7. The feeding structure for cigarette detection as described in claim 6, characterized in that, The feeding structure also includes a slide rail, which is hinged to the end of the worm gear away from the support frame.

Images