CN219965655U - Pull ring cover off-line photographing detection device - Google Patents

Abstract

The utility model discloses a pull ring cover offline photographic detection device, which relates to the technical field of pull ring cover detection devices and comprises a cover arranging device, a conveying detection shafting group, a pull ring cover removing unit, a cover surface detection assembly, a pull ring outer detection assembly, a gasket detection assembly and a pull ring inner detection assembly, wherein the right side of the cover arranging device is connected with the left end of a transverse channel; this pull ring lid off-line photo detection device detects product quality through taking a photograph on the equipment, does not miss slight mistake, ensures the quality of product, and efficiency is higher, simultaneously, has alleviateed workman's intensity of labour greatly, has reduced labor cost, has guaranteed the final quality of product.

Description

Pull ring cover off-line photographing detection device

Technical Field

The utility model relates to the technical field of pull ring cover detection devices, in particular to an off-line photographing detection device for a pull ring cover.

Background

At present, the existing detection device has poor rejection precision due to the fact that the quantity of equipment required for producing the pull ring covers is large, the existing detection device has long flow, defective products are rejected out of the equipment possibly together with good covers in the pull ring cover production process, waste of products is caused, in order to reuse the good covers, waste is reduced, the covers which are considered to be problematic by the existing equipment are re-detected once again, and the covers with good quality can be picked out for reuse; the prior bottle cap picking can only be selected by human eyes, the number of required workers is large, the labor intensity of the workers is high, and 100% of the picking can not be ensured to be genuine.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the pull ring cover offline photographic detection device which can detect the quality of a product through photographing on equipment without missing fine errors, ensure the quality of the product and higher efficiency, simultaneously greatly lighten the labor intensity of workers, reduce the labor cost, ensure the final quality of the product and effectively solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a pull tab cover offline photo detection device comprising:

the right side of the cover arranging device is connected with the left end of the transverse channel;

the conveying detection shafting group comprises a conveying star plate, a conveying detection shafting I, a conveying detection shafting II and a transparent glass plate, wherein the conveying detection shafting I is positioned at the left rear of the conveying detection shafting II, the conveying star plates are arranged on the conveying detection shafting I and the conveying detection shafting II, a through groove is formed in the rear side of the conveying star plate on the conveying detection shafting I, and the transparent glass plate is embedded in the through groove;

the pull ring cover removing unit is arranged on the right side of the second transmission and detection shaft system;

the cover surface detection assembly is arranged below the conveying star plate on the conveying detection shaft system I and is arranged in a vertically corresponding manner with the transparent glass plate;

the pull ring outer detection assembly is arranged on the right rear side of the conveying star plate on the conveying detection shafting I;

the gasket detection assembly is arranged above the left front side of the conveying star plate on the conveying detection shafting II;

the in-pull ring detection assembly is arranged at the front side of the conveying star plate on the conveying detection shaft system II.

The main functions of the cap arranging and discharging device are cap arranging and discharging, namely, the cap opening is upward according to the cap opening, the cap opening is outputted in the backward direction, smooth conveying is guaranteed, the cap opening passes through the range from a transverse channel to a conveying and detecting shaft system group, a conveying star plate on a conveying and detecting shaft system I moves the cap opening along the pointer direction from the rear side and then transfers the cap opening to a conveying star plate on a conveying and detecting shaft system II, the conveying star plate on the conveying and detecting shaft system II moves the cap opening along the anticlockwise direction from the front side, when the cap opening is on the conveying star plate on the conveying and detecting shaft system I, the cap opening is upward through the cap surface detecting component, the cap surface of the cap opening is detected through the cap surface detecting component, the quality of the cap surface is detected by the cap surface detecting component outside the cap opening, the quality of a gasket in the cap opening is detected by the gasket detecting component when the cap opening is on the conveying star plate on the conveying and detecting shaft system II, and the cap rejecting unit is used for rejecting unqualified cap opening.

Further, the cover surface detection assembly, the pull ring outer detection assembly, the gasket detection assembly and the pull ring inner detection assembly all comprise a support, a camera and a light source, the camera and the light source are respectively installed on the support, the camera and the light source in the cover surface detection assembly are arranged upwards, the camera and the light source in the pull ring outer detection assembly are arranged towards the left front, the camera and the light source in the gasket detection assembly are arranged downwards, and the camera and the light source in the pull ring inner detection assembly are all arranged towards the rear. The camera adopts a high-precision camera, is a high-speed camera with high precision, can continuously convey dynamic photographing, is fast to store, and the light source is used for supplementing light, so that the photographing quality of the camera is improved.

Further, reason lid arranges lid ware and includes funnel, carousel and export, the funnel is the toper structure, and the below of funnel is provided with the carousel, the right side bottom of carousel is provided with the export, the export is connected with the left end of transverse channel. The tab closure to be tested is poured into a conical funnel and then flows onto the surface of a turntable which is very smooth and does not scratch the closure. Due to the action of centrifugal force, the pull ring covers are thrown to the outer edge of the turntable to be arranged into a queue, the cover disc at the outer edge is only provided with one outlet, the shape of the outlet is almost the same as that of the pull ring, the physical size of the outlet limits the pull ring covers with the cover openings downwards to pass through the outlet, and only the cover openings upwards can pass through the outlet.

Further, the cover arranging device further comprises a vibrator, and the bottom of the funnel is provided with the vibrator. The pull ring cover can smoothly fall into the turntable from the funnel through the vibration of the vibrator, so that the bottom port of the funnel is prevented from being clamped on the pull ring cover.

Further, the pull ring cover removing unit comprises a removing device, a waste material port and a waste material port, wherein the removing device is arranged on the right side of the conveying star plate on the conveying detection shaft system II, and the rear waste material port and the right waste material port are also arranged on the right side of the conveying star plate on the conveying detection shaft system II.

Further, the pull ring cover removing unit further comprises an output channel, and the rear end of the material inlet is connected with the output channel which is arranged high in front and low in back.

Further, the pull ring cover removing unit further comprises a waste slideway, and the right end of the waste port is connected with the waste slideway which is arranged in a left-high-right-low mode.

Further, the removing device comprises an air distribution disc and an electromagnetic valve.

Compared with the prior art, the utility model has the beneficial effects that:

1. the appearance, the internal appearance and the pull ring image of each bottle cap are shot by the high-precision camera. The image is analyzed and processed at high speed by computer software, and compared with preset bottle cap characteristic parameters, whether the bottle cap is qualified or not is judged, if the bottle cap is found to be inconsistent with the input characteristic, a signal is sent by the system feedback, and the bottle cap with quality problems is removed at a designated position by the air blowing removing device of the system control equipment and is counted;

2. the photographic detection can detect defects of various aspects of the bottle cap, such as gasket damage detection (the tightness is not up to the requirement), material shortage and the like; mixing the cover, overprinting the bottle cap pattern, detecting dirt on the surface of the bottle cap pattern; detecting burrs of the inner and outer contours of the pull ring, material shortage of the pull ring, flash and the like;

3. the response speed is high, the judgment is accurate, the cap removing effect is good, and the removal is rapid and correct;

4. the quality of the product is detected through photographing on the equipment, fine errors are not omitted, the quality of the product is guaranteed, the efficiency is higher, meanwhile, the labor intensity of workers is greatly reduced, the labor cost is reduced, and the final quality of the product is guaranteed.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of a cover arranging device according to the present utility model;

FIG. 4 is a schematic view of the structure of the pull-tab outer detecting assembly according to the present utility model;

FIG. 5 is a schematic diagram of a gasket detection assembly of the present utility model;

fig. 6 is a schematic diagram of the principle of the present utility model.

In the figure: the device comprises a pull ring cover 1, a funnel 2, a vibrator 3, a rotary table 4, an outlet 5, a transverse channel 6, a conveying star plate 7, a waste receiving hopper 8, a removing device 9, a paper box 10, a bracket 11, a camera 12, a light source 13, a supporting frame 14, a mounting rod 15, a waste slideway 16, a conveying detection shafting I17, a conveying detection shafting II 18, a conveying detection shafting II, a 19 output channel, a 20 cover surface detection assembly, a pull ring outer detection assembly 21, a 22 gasket detection assembly, a pull ring inner detection assembly 23, a 24 transparent glass plate, a 25 man-machine interaction interface, a 26 upper computer, a 27 lower computer and a 28 position sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In a first embodiment, referring to fig. 1-2 and 4-6, the present utility model provides a technical solution: the utility model provides a pull ring lid off-line photo detection device, is a detection device of pull ring lid surface defect, gasket quality defect, plastics pull ring quality defect, specifically means to utilize the camera to shoot the device that detects pull ring lid product quality situation, including reason lid row lid ware, transport detection shafting group, pull ring lid rejection unit, capping detection subassembly 20, pull ring outer detection subassembly 21, gasket detection subassembly 22 and pull ring inner detection subassembly 23:

the right side of the cover arranging device is connected with the left end of the transverse channel 6;

the conveying detection shafting group comprises a conveying star plate 7, a conveying detection shafting I17, a conveying detection shafting II 18 and a transparent glass plate 24, wherein the conveying detection shafting I17 is positioned at the left rear of the conveying detection shafting II 18, the conveying star plate 7 is arranged on both the conveying detection shafting I17 and the conveying detection shafting II 18, a through groove is formed in the rear side of the conveying star plate 7 on the conveying detection shafting I17, and the transparent glass plate 24 is inlaid in the through groove;

the pull ring cover removing unit is arranged on the right side of the second transmission and detection shaft system 18;

the cover surface detection assembly 20 is arranged below the conveying star plate 7 on the conveying detection shaft system one 17, and the cover surface detection assembly 20 and the transparent glass plate 24 are correspondingly arranged up and down;

the pull ring outer detection assembly 21 is arranged on the right rear side of the conveying star plate 7 on the conveying detection shaft system one 17;

the gasket detection assembly 22 is arranged above the left front side of the conveying star plate 7 on the conveying detection shafting II 18;

the in-pull ring detection assembly 23 is arranged at the front side of the conveying star plate 7 on the conveying detection shaft system II 18.

The cover surface detection assembly 20, the pull ring outer detection assembly 21, the gasket detection assembly 22 and the pull ring inner detection assembly 23 all comprise a support 11, a camera 12 and a light source 13, the camera 12 and the light source 13 are respectively installed on the support 11, the camera 12 and the light source 13 in the cover surface detection assembly 20 are arranged upwards, the camera 12 and the light source 13 in the pull ring outer detection assembly 21 are arranged leftwards and forwards, the camera 12 and the light source 13 in the gasket detection assembly 22 are arranged downwards, and the camera 12 and the light source 13 in the pull ring inner detection assembly 23 are all arranged backwards. The camera 12 adopts a high-precision camera, is a high-speed camera with high precision, can continuously convey and dynamically photograph, is fast to store, and the light source 13 is used for supplementing light, so that the photographing quality of the camera 12 is improved.

The outer and inner tab detecting members 21 and 23 further comprise a stand 14 for mounting and adjusting the height and position of the stand 11 in the outer and inner tab detecting members 21 and 23.

The cover detection assembly 20 and the gasket detection assembly 22 further comprise a mounting rod 15 for mounting and fixing the bracket 11 in the cover detection assembly 20 and the gasket detection assembly 22, and also facilitating adjustment of the camera 12 and the light source 13 to a proper height.

According to the appearance characteristics of the pull ring cover, a camera with a four-way visual angle is required to be arranged to cover all the characteristics of the pull ring cover, find defects, and reject unqualified products through comparison and analysis by a blowing rejecting device.

When the cap arranging and arranging device is used, the main functions of the cap arranging and arranging device are that the pull ring cap 1 is output in the backward direction of the pull ring according to the upward cap opening, so that smooth conveying is ensured, the pull ring cap 1 passes through the range from the transverse channel 6 to the conveying and detecting shaft system group, the conveying star plate 7 on the conveying and detecting shaft system I17 moves the pull ring cap 1 along the pointer direction from the rear side, and then the pull ring cap 1 is transferred to the conveying star plate 7 on the conveying and detecting shaft system II 18;

the conveying star plate 7 on the conveying detection shafting II 18 moves the pull ring cover 1 in the anticlockwise direction from the front side, when the pull ring cover 1 is on the conveying star plate 7 on the conveying detection shafting I17, the cover surface of the pull ring cover 1 with the cover opening upwards is detected through the cover surface detection component 20 through the transparent glass plate 24 and used for detecting the quality of the printing surface of the pull ring cover 1, the pull ring outer detection component 21 is used for detecting the quality of the outer surface of the pull ring, the gasket detection component 22 is used for detecting the quality of the gasket in the pull ring cover 1 when the pull ring cover 1 is on the conveying star plate 7 on the conveying detection shafting II 18, the pull ring inner detection component 23 is used for detecting the quality of the inner surface of the pull ring, and the pull ring cover rejection unit is used for rejecting the unqualified pull ring cover 1.

In a second embodiment, referring to fig. 3, the present utility model provides a technical solution: the embodiment is further explained for the first embodiment;

the cover arranging device comprises a funnel 2, a rotary table 4 and an outlet 5, wherein the funnel 2 is of a conical structure, the rotary table 4 is arranged below the funnel 2, the outlet 5 is arranged at the bottom of the right side of the rotary table 4, and the outlet 5 is connected with the left end of the transverse channel 6. The tab closure 1 to be inspected is poured into the conical funnel 2 and then flows onto the surface of a turntable 4, the turntable 4 surface being very smooth and not scoring the closure. Due to the effect of centrifugal force, the pull ring cover 1 is thrown to the outer edge of the rotary disc 4 to be arranged into a queue, the cover disc at the outer edge is only provided with one outlet 5, the shape of the outlet 5 is almost the same as that of the pull ring, and the physical size of the outlet 5 limits the pull ring cover 1 with the cover opening facing downwards to pass through the outlet, so that the outlet 5 can only be passed through when the cover opening faces upwards.

The cover arranging device further comprises a vibrator 3, and the vibrator 3 is arranged at the bottom of the funnel 2. The pull ring cover 1 can smoothly fall into the rotary table 4 from the funnel 2 through the vibration of the vibrator 3, so that the bottom port of the funnel 2 is prevented from being clamped on the pull ring cover 1.

In a third embodiment, referring to fig. 1-2, the present utility model provides a technical solution: the embodiment is further explained for the second embodiment;

the pull ring cover removing unit comprises a removing device 9, a waste material port and a waste material port, wherein the removing device 9 is arranged on the right side of the conveying star plate 7 on the conveying detection shafting II 18, and the rear waste material port and the right waste material port are also arranged on the right side of the conveying star plate 7 on the conveying detection shafting II 18.

The removing device 9 comprises a gas distribution disc and an electromagnetic valve, the electromagnetic valve is controlled by the lower computer to blow gas to the gas distribution disc, and then the pull ring cover 1 of the waste is blown by the gas blowing nozzle, so that the pull ring cover 1 of the waste can be blown to a waste port, and the pull ring cover 1 of the waste instead of the pull ring cover 1 of the waste flows into a good port.

The pull ring cover removing unit further comprises an output channel 19, the rear end of the good material port is connected with the output channel 19 with the front high and the rear low, the output channel 19 guides the pull ring cover 1 serving as a good product into the carton 10, and the carton 10 is packed after being filled;

the pull ring cover removing unit further comprises a waste slide 16, the right end of the waste port is connected with the waste slide 16 which is arranged at the left side, the right side and the lower side, if the waste is the pull ring cover 1, the removing device 9 blows the pull ring cover 1 of the waste into the waste slide 16, and the waste slide 16 guides the pull ring cover 1 of the waste into the waste receiving hopper 8 to be collected.

In other embodiments, referring to fig. 1 to 6, the device further includes a man-machine interface 25, an upper computer 26, a lower computer 27, and a position sensor 28, wherein an output end of the man-machine interface 25 is electrically connected to an input end of the upper computer 26, the upper computer 26 is electrically connected to the lower computer 27 in two directions, an output end of the lower computer 27 is electrically connected to the light source 13, the removing device 9, the camera 12, and an input end of the position sensor 28, an output end of the camera 12 is electrically connected to an input end of the upper computer 26, an output end of the position sensor 28 is also electrically connected to an input end of the lower computer 27, the position sensor 28 includes an encoder, the upper computer 26 uses a computer, and the lower computer 27 uses a PLC;

the functional flow in use is shown in fig. 6:

the man-machine interaction interface 25 can edit and display related operation functions in real time, and the detection flow is as follows: the upper computer 26 sends out a start detection signal to the lower computer 27, the lower computer 27 acquires the position information of the position sensor 28, determines the trigger photographing position and the reject position, opens the light source 13, opens the electromagnetic valve, and enters a detection state.

After the camera 12 shoots, the pictures are transmitted back to the upper computer 26, the pull ring, the cover inner and cover surface detection programs start to run, the man-machine interaction interface 25 displays the pictures and the detection results in real time and simultaneously transmits the pictures and the detection results to the lower computer 27, the lower computer 27 receives the result information and transmits the detected cover information back to the upper computer 26 for checking the qualified and unqualified products, if the checking is successful, an electromagnetic valve in the removing device 9 is opened at a fixed position, a jet of compressed air is blown, and the unqualified cover is removed at a removing position; if the verification fails, the upper computer 26 corrects the last result of the lower computer 27 again in the next period;

description of the implementation of the mechanical structure please refer to fig. 1-5:

the offline photographic detection mechanical part mainly comprises two parts, including a cover arranging device and a conveying detection shaft system group. The main function of the cap arranging device is to arrange caps, namely, the caps are output according to the direction that the cap opening faces upwards and the pull ring faces backwards, so that smooth conveying is ensured;

the conveying detection shaft system mainly comprises a conveying detection shaft system I17, a conveying detection shaft system II 18 and a conveying star plate 7, four groups of light sources 13 and cameras 12 are arranged in the conveying process of the conveying detection shaft system I17 and the conveying detection shaft system II 18, and a cover surface detection assembly 20 and a pull ring outer detection assembly 21 are respectively arranged outside the conveying detection shaft system I17.

The gasket detection assembly 22 and the pull ring inner detection assembly 23 are arranged on the outer side of the second conveying detection shaft system 18, and the second conveying detection shaft system 18 is provided with a removing device 9 at the rear end of the detection camera for removing covers with quality problems. The counted pull ring cover 1 with no problem in detection quality is output to the packing box 10 for packing the carton 10 in the final output passage 19.

The utility model is realized by the following scheme:

referring to fig. 1-3, the pull ring cover 1 to be detected is poured into the conical funnel 2, the pull ring cover 1 flows to the surface of a turntable 4 through the vibration of the vibrator 3, and the surface of the turntable 4 is very smooth and cannot scratch the pull ring cover 1. Due to the effect of centrifugal force, the pull ring cover 1 is thrown to the outer edge of the rotary disc 4 to be arranged into a queue, the cover disc at the outer edge is only provided with one outlet 5, the shape of the outlet 5 is almost the same as that of the pull ring, and the physical size of the outlet 5 limits the pull ring cover 1 with the cover opening facing downwards to pass through the outlet, so that the outlet 5 can only be passed through when the cover opening faces upwards.

The pull ring covers 1 with upward cover openings after passing through the cover arranging device enter the entrance of the conveying star plate 7 of the conveying detection shaft system I17 through the transverse channel 6, the conveying detection shaft system I17 rotates in a clockwise direction, and the conveying star plate 7 of the conveying detection shaft system I17 is provided with two groups of cameras 12 at different angular positions in a top view, namely a bracket 11, the cameras 12 and a light source 13. The second conveying detection shafting 18 is also provided with two groups of brackets 11, a camera 12 and a light source 13, the cover surface of the pull ring cover 1 with the upward cover opening is detected through the cover surface detection assembly 20 by the transparent glass plate 24 and used for detecting the quality of the printing surface of the pull ring cover 1, the pull ring outer detection assembly 21 detects the quality of the outer surface of the pull ring, the gasket detection assembly 22 detects the quality of the gasket in the pull ring cover 1 when the pull ring cover 1 is arranged on the conveying star plate 7 on the second conveying detection shafting 18, and the pull ring inner detection assembly 23 detects the quality of the inner surface of the pull ring. The detected tab closure 1 is further transported by the transport star 7. The unqualified pull ring cover 1 is blown into the waste receiving hopper 8 by a removing device 9 arranged on the conveying star plate 7. The qualified tab lids 1 continue to be transported, counted and transported to the cartons 10 for packing by compressed air.

The ring pulling cover 1 conveys the conveying star plate 7 on the conveying detection shafting I17 along a circumference with a certain diameter, at this moment, each opening of the ring pulling cover 1 faces upwards, in order to enable the light source 13 to penetrate through the conveying star plate 7, a groove is formed in the conveying star plate 7 of the steel piece, then a transparent glass plate 24 is filled, light emitted by the light source 13 can penetrate through the conveying star plate 7 and irradiate the back of the ring pulling cover 1, so that a photo shot by the camera 12 achieves the effect of system requirements, wherein the camera 12 is arranged on the support 11, and the camera 12 is a high-speed camera with high precision, and can dynamically shoot and store in continuous conveying. The high and low positions of the camera 12 and the light source 13 can be adjusted by the waist-shaped long holes of the bracket until the positions are proper, so as to be used for detecting the surface quality condition of the pull ring cover 1.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. An off-line photographic inspection device for a pull ring cover, comprising:

the right side of the cover arranging device is connected with the left end of the transverse channel (6);

the conveying detection shafting group comprises a conveying star plate (7), a conveying detection shafting I (17), a conveying detection shafting II (18) and a transparent glass plate (24), wherein the conveying detection shafting I (17) is positioned at the left rear of the conveying detection shafting II (18), the conveying star plate (7) is arranged on the conveying detection shafting I (17) and the conveying detection shafting II (18), a through groove is formed in the rear side of the conveying star plate (7) on the conveying detection shafting I (17), and the transparent glass plate (24) is embedded in the through groove;

the pull ring cover removing unit is arranged on the right side of the second transmission and detection shaft system (18);

the cover surface detection assembly (20) is arranged below the conveying star plate (7) on the conveying detection shaft system I (17), and the cover surface detection assembly (20) and the transparent glass plate (24) are arranged correspondingly up and down;

the pull ring outer detection assembly (21) is arranged on the right rear side of the conveying star plate (7) on the conveying detection shaft system I (17);

the gasket detection assembly (22) is arranged above the left front side of the conveying star plate (7) on the conveying detection shafting II (18);

and the pull ring inner detection assembly (23) is arranged in front of the conveying star plate (7) on the conveying detection shafting II (18).

2. The pull tab cover offline photo detection device of claim 1, wherein: the cosmetic detection assembly (20), the pull ring outer detection assembly (21), the gasket detection assembly (22) and the pull ring inner detection assembly (23) all comprise a support (11), a camera (12) and a light source (13), the camera (12) and the light source (13) are respectively installed on the support (11), the camera (12) and the light source (13) in the cosmetic detection assembly (20) are arranged upwards, the camera (12) and the light source (13) in the pull ring outer detection assembly (21) are arranged towards the left front, the camera (12) and the light source (13) in the gasket detection assembly (22) are arranged downwards, and the camera (12) and the light source (13) in the pull ring inner detection assembly (23) are all arranged towards the rear.

3. The pull tab cover offline photo detection device of claim 1, wherein: the cover arranging device comprises a funnel (2), a rotary table (4) and an outlet (5), wherein the funnel (2) is of a conical structure, the rotary table (4) is arranged below the funnel (2), the outlet (5) is arranged at the bottom of the right side of the rotary table (4), and the outlet (5) is connected with the left end of a transverse channel (6).

4. A pull tab cover offline photo detection apparatus as claimed in claim 3, wherein: the cover arranging device comprises a hopper (2), and is characterized by further comprising a vibrator (3), wherein the vibrator (3) is arranged at the bottom of the hopper.

5. The pull tab cover offline photo detection device of claim 1, wherein: the pull ring cover removing unit comprises a removing device (9), a waste material port and a waste material port, wherein the removing device (9) is arranged on the right side of a conveying star plate (7) on the conveying detection shafting II (18), and the backward waste material port and the rightward waste material port are also arranged on the right side of the conveying star plate (7) on the conveying detection shafting II (18).

6. The pull tab cover offline photo detection device of claim 5, wherein: the pull ring cover removing unit further comprises an output channel (19), and the rear end of the material inlet is connected with the output channel (19) which is arranged high in front and low in back.

7. The pull tab cover offline photo detection device of claim 5, wherein: the pull ring cover removing unit further comprises a waste slideway (16), and the right end of the waste port is connected with the waste slideway (16) with the left side high and the right side low.

8. The pull tab cover offline photo detection device of claim 5, wherein: the removing device (9) comprises an air distribution disc and an electromagnetic valve.