CN115608628B

CN115608628B - Screen detection system

Info

Publication number: CN115608628B
Application number: CN202211406150.3A
Authority: CN
Inventors: 刘渊; 王猛; 杨燕超
Original assignee: Dongguan Nangong Machinery Technology Co ltd
Current assignee: Dongguan Nangong Machinery Technology Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2024-06-25
Anticipated expiration: 2042-11-10
Also published as: CN115608628A

Abstract

The invention provides a screen detection system, which comprises: the device comprises a controller, a feeding device, a conveying device, a picking device, a detecting device and a discharging device, wherein the feeding device, the conveying device, the picking device, the detecting device and the discharging device are respectively and electrically connected with the controller, and are sequentially arranged to form a detecting assembly line; the feeding device comprises a separation unit, wherein the separation unit separates a single screen to be detected from a plurality of stacked screens to be detected and conveys the single screen to the conveying device; according to the invention, the support module and the moving module in the separating unit are matched, so that a single screen to be detected is deformed, the deformed screen to be detected can be effectively separated from other screens to be detected adhered together, the separating unit can rapidly and reliably separate the single screen to be detected from a plurality of stacked screens to be detected, the probability of shutdown of a screen detecting system due to error reporting is reduced, and the reliability and continuity of screen detecting work are improved.

Description

Screen detection system

Technical Field

The invention relates to the technical field of screen detection equipment, in particular to a screen detection system.

Background

Currently, for screen detection, especially for detecting a glass screen of a mobile phone, a two-dimensional detection device (two-dimensional measuring instrument) is generally used for measuring the external dimension of the screen. In the prior art, two detection modes aiming at a screen are mainly adopted, namely, a screen to be detected is directly taken by a person to be detected on a secondary element detection device for detection, the screen is manually replaced after detection is finished, but the following problems exist in the manual detection mode: firstly, a screen to be tested is manually and directly taken and tested on secondary measuring equipment, the accuracy of a screen detection result is low easily caused by the deviation of manual operation, secondly, the stability of the screen detection result is poor possibly caused by the problem of non-uniform operation of different personnel, and finally, the efficiency of manual detection is low; secondly, carry out automated inspection through screen check out test set, but current automated inspection of screen check out test set ubiquitous unable follow a plurality of screen that wait to examine of stacking separate the problem of single screen that wait to examine fast and reliably, when the screen that awaits measuring of stacking was carried to secondary unit check out test set, the screen check out test set wholly can appear reporting the wrong shut down scheduling problem, and the reliability and the continuity of detection work are relatively poor, and then lead to the inefficiency of detection and the inaccurate problem of testing result.

Disclosure of Invention

The invention provides a screen detection system, which aims to solve the problem that screen detection equipment in the prior art cannot separate a single screen to be detected from a plurality of stacked screens to be detected rapidly and reliably, so that the detection efficiency of the screen detection equipment is low.

In order to solve the above-described problems, the present invention provides a screen detection system including: the device comprises a controller, a feeding device, a conveying device, a picking device, a detecting device and a discharging device, wherein the feeding device, the conveying device, the picking device, the detecting device and the discharging device are respectively and electrically connected with the controller, and are sequentially arranged to form a detecting assembly line; the method comprises the steps that a plurality of screens to be detected are conveyed to a conveying device one by a feeding device, the screens to be detected on the conveying device are conveyed to a detecting device one by a pickup device to be detected, after the screens to be detected are detected by the detecting device, the screen types of good products or defective products of the screens are determined, the screens detected at the detecting device are conveyed back to the conveying device by the pickup device, the detected screens are conveyed to a discharging device by the conveying device, and the discharging device is controlled by a controller to store the screens in a classified mode according to the screen types;

The feeding device comprises a separation unit, wherein the separation unit separates a single screen to be detected from a plurality of stacked screens to be detected and conveys the single screen to the conveying device; the separation unit includes: the mobile module is detachably and fixedly matched with the single screen to be inspected and drives the single screen to be inspected to move; the support module is abutted to the surface of a single screen to be detected, which is fixedly matched with the moving module, and the support module and the moving module are matched to enable the single screen to be detected to deform so as to separate the single screen to be detected.

Further, the separation unit further comprises a vibration module; the vibration module is arranged on the moving module, and drives the single screen to be inspected to vibrate under the condition that the support module is abutted against the surface of the single screen to be inspected so as to separate the single screen to be inspected from the stacked multiple screens to be inspected.

Further, the vibration module comprises a vibration rod and a vibration cylinder for driving the vibration rod to vibrate, the vibration cylinder is electrically connected with the controller, and the vibration cylinder is arranged on the movement module; the vibrating rod drives a single screen to be inspected to vibrate.

Further, the vibration module further comprises an elastic vibration head, the elastic vibration head is connected with one end of the vibration rod, which is close to the screen to be detected, and the vibration rod is contacted with the single screen to be detected through the elastic vibration head to drive the screen to be detected to vibrate.

Further, the mobile module includes: a movable support; the moving part is connected with the moving bracket and is used for driving the moving bracket to move; the fixed part is arranged on the movable support and is detachably matched with the single screen to be inspected.

Further, the fixing part comprises a plurality of sucking disc pieces which are arranged on the movable bracket at intervals; the plurality of sucking disc pieces jointly suck a single screen to be inspected.

Further, the support module comprises a support rod and an elastic head, the support rod is arranged on the moving module, the elastic head is connected with one end, close to the screen to be detected, of the support rod, and the elastic head is abutted to the screen to be detected.

Further, the separation unit further comprises a detection module, and the detection module is electrically connected with the controller; the detection module is used for detecting whether the screen to be detected is single or not, wherein the screen to be detected is fixedly matched with the mobile module.

Further, loading attachment still includes rotatory feed bin unit, and rotatory feed bin unit includes: a stock bin bracket; the feed bin bracket is arranged on the driving module; the first bin is arranged on the bin bracket and is used for accommodating a plurality of stacked screens to be inspected; the second bin is arranged on the bin bracket and is arranged at intervals with the first bin; the second bin is used for accommodating a plurality of stacked screens to be inspected; wherein, the drive module drives the feed bin support rotation to switch first feed bin or second feed bin and rotate to the operating position of separation unit.

Further, the first feed bin and the second feed bin are the same in structure, all include: the constraint frame body is arranged on the stock bin bracket; the tray is movably arranged in the constraint frame body and is used for bearing the screens to be inspected, and a containing cavity is formed in the tray and the constraint frame body and is used for containing a plurality of stacked screens to be inspected; and the feeding motor is arranged on the stock bin bracket or the constraint frame body, is in driving connection with the tray, is electrically connected with the controller and controls the stacked multiple screens to be detected to move in a direction close to the separation unit by controlling the tray to move along the inner wall of the constraint frame body.

Further, the restraining frame body includes: the adjusting chassis is arranged on the stock bin bracket, and is parallel to the adjusting chassis; the first adjusting frame, the second adjusting frame, the third adjusting frame and the fourth adjusting frame are respectively movably arranged on the adjusting chassis, and the size of the accommodating cavity is adjusted to be suitable for a screen to be inspected by adjusting the positions of the first adjusting frame, the second adjusting frame, the third adjusting frame and the fourth adjusting frame.

Further, the driving module includes: the driving cylinder comprises a telescopic rod which can move in a telescopic way; the rack is connected with the telescopic rod and moves along with the telescopic rod in a reciprocating and linear mode; the gear is meshed with the rack; the rotary fixing part is fixedly connected with the bin bracket at one end, and is fixedly connected with the gear at the other end; the driving cylinder drives the rotary fixing part to drive the stock bin bracket to rotate through the cooperation of the rack and the gear.

Further, the driving module further comprises a driving shell, the driving shell is fixedly arranged, the driving cylinder is arranged in the driving shell, a sliding rail is arranged in the driving shell, and the rack is in sliding fit with the sliding rail; the gear is rotatably arranged in the driving shell; the driving module further comprises a buffer and a limiter which are respectively arranged on the driving shell, the buffer is used for buffering the movement of the rack, and the limiter limits the movement of the rack so as to restrict the movement range of the rack.

Further, the feeding device comprises two rotary bin units and two separation units, wherein the two rotary bin units are respectively arranged on two sides of the conveying device, and the separation units and the rotary bin units are arranged in one-to-one correspondence.

Further, the discharging device comprises a sorting unit, a good unit and a defective unit, the sorting unit is electrically connected with the controller, and the controller controls the sorting unit to convey the screen to the good unit or store the defective unit according to the screen type.

Further, the transfer device includes: the to-be-detected conveying belt is used for driving the to-be-detected screen to move towards the detection device; the inspected conveyor belt is used for driving the screen after the inspection to move towards the blanking device; the first sensor is electrically connected with the controller, and is arranged on the conveyor belt to be detected, and the controller controls the pick-up device to convey the screen to be detected from the conveyor belt to the detection device under the condition that the first sensor senses the screen on the conveyor belt to be detected; the second sensor is electrically connected with the controller, is arranged on the inspected conveyor belt, and controls the blanking device to store the screens in a classified mode according to the screen types under the condition that the second sensor senses the screens on the inspected conveyor belt; the guide structure is arranged on the conveyor belt to be detected; the guide structure is used for guiding the screen on the conveyor belt to be detected; wherein the detection device is positioned between the conveyor belt to be detected and the detected conveyor belt.

Further, the pickup device includes: picking up a bracket; the power unit drives the pickup bracket to move close to or away from the conveying device or the detecting device; the picking unit is arranged on the picking bracket and detachably fixedly matched with the single screen to be inspected, and comprises a plurality of sucker assemblies which jointly adsorb the single screen to be inspected.

Further, the two pick-up units are respectively a first pick-up unit and a second pick-up unit, the first pick-up unit and the second pick-up unit are arranged on the pick-up support at intervals of set distance, and the set distance and the travel of the power unit driving the pick-up support to move are matched, so that a screen to be detected fixed with the first pick-up unit and a screen to be detected fixed with the second pick-up unit move to the detection device and the conveying device respectively and simultaneously.

Further, the screen detection system also comprises an upper rack and a lower rack, wherein the upper rack is arranged above the lower rack; the separation unit is arranged on the upper frame, the conveying device is arranged on the lower frame and positioned below the upper frame, the pickup device is arranged on the upper frame, and the detection device is arranged on the lower frame.

The invention provides a screen detection system, which comprises: the device comprises a controller, a feeding device, a conveying device, a picking device, a detecting device and a discharging device, wherein the feeding device, the conveying device, the picking device, the detecting device and the discharging device are respectively and electrically connected with the controller, and are sequentially arranged to form a detecting assembly line; the method comprises the steps that a plurality of screens to be detected are conveyed to a conveying device one by a feeding device, the screens to be detected on the conveying device are conveyed to a detecting device one by a pickup device to be detected, after the screens to be detected are detected by the detecting device, the screen types of good products or defective products of the screens are determined, the screens detected at the detecting device are conveyed back to the conveying device by the pickup device, the detected screens are conveyed to a discharging device by the conveying device, and the discharging device is controlled by a controller to store the screens in a classified mode according to the screen types; the feeding device comprises a separation unit, wherein the separation unit separates a single screen to be detected from a plurality of stacked screens to be detected and conveys the single screen to the conveying device; the separation unit includes: the mobile module is detachably and fixedly matched with the single screen to be inspected and drives the single screen to be inspected to move; the support module is abutted to the surface of a single screen to be detected, which is fixedly matched with the moving module, and the support module and the moving module are matched to enable the single screen to be detected to deform so as to separate the single screen to be detected. According to the invention, the support module and the moving module in the separating unit are matched, so that a single screen to be detected is deformed, the deformed screen to be detected can be effectively separated from other screens to be detected adhered together, the separating unit can rapidly and reliably separate the single screen to be detected from a plurality of stacked screens to be detected, the probability of shutdown of a screen detection system due to error reporting is reduced, the reliability and the continuity of screen detection work are improved, and further the screen detection efficiency and the accuracy of detection results are effectively improved; according to the invention, the controller, the feeding device, the conveying device, the picking device, the detecting device and the blanking device are respectively and electrically connected with the controller, so that the screen detecting system can automatically and rapidly carry out continuous actions such as screen sorting, automatic conveying, automatic detection, automatic sorting storage according to screen types and the like, and the automation degree of the screen detecting system is high, the detecting efficiency is high, the manpower is effectively saved, and meanwhile, the accuracy of screen detection is ensured to meet the actual detecting requirement.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

fig. 1 is a schematic diagram showing an internal structure of a screen detection system according to an embodiment of the present invention;

Fig. 2 is a schematic diagram showing an external configuration of a screen detection system according to an embodiment of the present invention;

FIG. 3 is a schematic diagram showing a specific structure of a separation unit according to an embodiment of the present invention;

Fig. 4 is a schematic view showing a part of the structure of a separation unit provided by an embodiment of the present invention;

fig. 5 shows a specific structural schematic diagram of a rotary silo unit provided by an embodiment of the invention;

Fig. 6 is a schematic view showing a part of the structure of a rotary silo unit provided by the embodiment of the invention;

fig. 7 is a schematic diagram showing a specific structure of a driving module according to an embodiment of the present invention;

fig. 8 is a schematic diagram showing a specific structure of a conveyor belt to be inspected according to an embodiment of the present invention;

FIG. 9 is a schematic diagram showing a specific structure of a inspected conveyor belt according to an embodiment of the invention;

fig. 10 is a schematic diagram showing a specific structure of a pickup apparatus according to an embodiment of the present invention;

fig. 11 shows a schematic view of a part of the structure of a sorting unit according to an embodiment of the invention.

Wherein the above figures include the following reference numerals:

10. a separation unit; 11. a mobile module; 111. a movable support; 112. a moving part; 113. a fixing part; 1131. a suction disc member; 12. a support module; 121. a support rod; 122. an elastic head; 13. a vibration module; 131. a vibrating rod; 132. a vibrating cylinder; 133. an elastic vibrating head;

20. A rotary stock bin unit; 21. a stock bin bracket; 22. a driving module; 221. a driving cylinder; 222. a rack; 223. a gear; 224. a rotation fixing part; 225. a drive housing; 226. a buffer; 227. a limiter; 23. a first bin; 231. restraining the frame body; 2311. adjusting the chassis; 2312. a first adjusting frame; 2313. a second adjusting frame; 2314. a third adjusting frame; 2315. a fourth adjusting frame; 232. a tray; 233. a feeding motor; 234. a receiving chamber; 24. a second bin;

30. A transfer device; 31. a conveyor belt to be inspected; 32. a inspected conveyor belt; 33. a first inductor; 34. a second inductor; 35. a guide structure;

40. A pick-up device; 41. picking up a bracket; 42. a power unit; 43. a first pickup unit; 431. a suction cup assembly; 44. a second pickup unit;

50. a detection device;

60. a blanking device; 61. a sorting unit; 62. a good product unit;

70. An upper frame;

80. A lower frame;

90. A housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 to 11, an embodiment of the present invention provides a screen detection system including: the device comprises a controller, a feeding device, a conveying device 30, a picking device 40, a detecting device 50 and a discharging device 60 which are respectively and electrically connected with the controller, wherein the feeding device, the conveying device 30, the picking device 40, the detecting device 50 and the discharging device 60 are sequentially arranged to form a detecting assembly line; the feeding device conveys a plurality of screens to be detected to the conveying device 30 one by one, the pickup device 40 conveys the screens to be detected on the conveying device 30 to the detection device 50 one by one for detection, the detection device 50 detects the screens to be detected, then determines that the screens belong to the screen types of good products or bad products, the pickup device 40 conveys the screens detected at the detection device 50 back to the conveying device 30 again, the conveying device 30 conveys the detected screens to the blanking device 60, and the controller controls the blanking device 60 to store the screens in a classified mode according to the screen types;

The feeding device comprises a separation unit 10, wherein the separation unit 10 separates a single screen to be detected from a plurality of stacked screens to be detected and conveys the single screen to the conveying device 30; the separation unit 10 includes: the mobile module 11 and the supporting module 12 are used for detachably and fixedly matching with a single screen to be inspected, and driving the single screen to be inspected to move; the support module 12 is abutted against the surface of a single screen to be inspected, which is fixedly matched with the moving module 11, and the support module 12 and the moving module 11 are matched to deform the single screen to be inspected so as to separate the single screen to be inspected.

According to the invention, the support module 12 and the moving module 11 in the separating unit 10 are matched, so that a single screen to be detected is deformed, and the deformed screen to be detected can be effectively separated from other screens to be detected adhered together, so that the separating unit 10 can rapidly and reliably separate the single screen to be detected from a plurality of stacked screens to be detected, the probability of shutdown of a screen detection system due to error reporting is reduced, the reliability and the continuity of screen detection work are improved, and further the screen detection efficiency and the accuracy of detection results are effectively improved; according to the invention, the controller, the feeding device, the conveying device 30 and the picking device 40 which are respectively and electrically connected with the controller are arranged, the detection device 50 and the blanking device 60 ensure that the screen detection system can automatically and rapidly carry out continuous actions such as screen sorting, automatic conveying, automatic detection, automatic classifying and storing according to the screen type, and the like.

As shown in fig. 3 and 4, the separation unit 10 further includes a vibration module 13; the vibration module 13 is disposed on the moving module 11, and in a state that the support module 12 is abutted against the surface of the single screen to be inspected, the vibration module 13 drives the single screen to be inspected to vibrate so as to separate the single screen to be inspected from the stacked multiple screens to be inspected. By providing the vibration module 13, it is further ensured that the screen to be inspected is effectively separated from other screens to be inspected adhered to the screen to be inspected, so that the separating unit 10 can separate a single screen to be inspected from a plurality of stacked screens to be inspected more rapidly and reliably.

As shown in fig. 4, the vibration module 13 includes a vibration rod 131 and a vibration cylinder 132 for driving the vibration rod 131 to vibrate, the vibration cylinder 132 is electrically connected with the controller, and the vibration cylinder 132 is disposed on the movement module 11; the vibration rod 131 drives the single screen to be inspected to vibrate. By arranging the vibrating rod 131 and the vibrating cylinder 132, the simplification of the whole structure of the vibrating module 13 is ensured, and the quick response of the vibrating module 13 under the control of the controller is ensured.

In one embodiment of the present invention, the vibrating cylinder 132 is a screw cylinder, which is simple in structure and reliable in operation.

Specifically, the vibration module 13 further includes an elastic vibration head 133, where the elastic vibration head 133 is connected to one end of the vibration rod 131 near the screen to be inspected, and the vibration rod 131 contacts with a single screen to be inspected through the elastic vibration head 133 to drive the screen to be inspected to vibrate. By arranging the elastic vibrating head 133, the adverse effect of the vibrating module 13 on the screen to be inspected in the process of vibrating is further reduced, and the problem that the screen to be inspected is cracked or worn on the surface due to vibration is effectively avoided.

In one embodiment of the present invention, the elastic vibration head 133 is a common optimal force rubber plug, which is reliable in elasticity and low in cost.

As shown in fig. 3, the mobile module 11 includes: a moving bracket 111; a moving part 112, the moving part 112 is connected with the moving bracket 111, and is used for driving the moving bracket 111 to move; and a fixing portion 113, wherein the fixing portion 113 is arranged on the movable support 111, and the fixing portion 113 is detachably and fixedly matched with the single screen to be inspected. Through setting up movable part 112, movable support 111 and fixed part 113, movable part 112 drives fixed part 113 and with fixed part fixed complex single screen motion of waiting to examine through movable support 111, and the degree of freedom of removal is high, simple structure.

In one embodiment of the present invention, the moving part 112 adopts a PPU manipulator assembly (i.e. a pick-and-place unit commonly found in an automatic pipeline) commonly found in the prior art, and the moving part 112 can move (including degrees of freedom of movement such as lifting and horizontal) within a travel range thereof relatively quickly under control of control, and can stay at a specified position along a preset track, so that the moving precision is high, the work is reliable, and the purchasing is convenient.

As shown in fig. 4, the fixing portion 113 includes a plurality of suction disc members 1131, and the plurality of suction disc members 1131 are disposed on the moving bracket 111 at intervals; the plurality of suction members 1131 collectively suck a single screen to be inspected. Through setting up a plurality of sucking disc pieces 1131, guaranteed that fixed part 113 is to the separable fixed of single screen of waiting to examine, contrast simultaneously and press from both sides the mode of getting fixed single screen of waiting to examine, a plurality of sucking disc pieces 1131 have effectively avoided waiting to examine the screen and have appeared the problem of crackle or surface abrasion because of pressing from both sides actions such as getting.

It should be noted that, in a specific embodiment of the present invention, the suction cup member 1131 adopts a common suction cup structure, that is, the suction cup structure cooperates with a common vacuum pump, the vacuum pump is connected to the suction cup through a gas pipe, and the vacuum pump controls the air pressure at the suction cup to realize the detachable fixation of the single screen to be inspected.

As shown in fig. 4, the support module 12 includes a support rod 121 and an elastic head 122, the support rod 121 is disposed on the moving module 11, the elastic head 122 is connected to one end of the support rod 121 near the screen to be inspected, and the elastic head 122 abuts against the screen to be inspected. By arranging the elastic head 122, the flexible contact between the support module 12 and the screen to be inspected is ensured, and the problem that the screen to be inspected is cracked or worn on the surface due to the supporting force is effectively avoided; in one embodiment of the present invention, the elastic head 122 is a common elastic force rubber plug, which is reliable in elasticity and low in cost.

In one embodiment of the present invention, the fixing portion 113 includes four suction cup members 1131, and in operation, the four suction cup members 1131 are disposed at intervals on the surface of the screen to be inspected; the four sucking disc pieces 1131 absorb a single screen to be inspected together, so that the simplification and the light weight of the whole structure of the fixing part 113 are effectively ensured; the whole length of bracing piece 121 and elasticity head 122 is slightly greater than the length of four sucking disc spare 1131 to guarantee when four sucking disc spare 1131 adsorb the single screen of waiting to examine jointly, the support module 12 supports the middle part of single screen of waiting to examine, single screen of waiting to examine takes place deformation from the middle part, from the perspective in fig. 4, the arc face is become to the surface deformation of single screen of waiting to examine, the arc face is tangent with other screens of waiting to examine of single screen lower part, consequently can effectively be with the screen of waiting to examine that produces deformation and other screens of waiting to examine that are in the same place with it adhesion effectively separate.

Specifically, the separation unit 10 further includes a detection module electrically connected to the controller; the detection module is used for detecting whether the screen to be detected which is fixedly matched with the mobile module 11 is single. Through setting up detection module, can effectively detect whether to examine the screen with mobile module 11 fixed coordination be single, when the controller discerned to examine the screen with mobile module 11 fixed coordination be single, can control vibration module 13 stop the vibration, avoided because of vibration module 13 excessive vibration leads to waiting to examine the phenomenon that the screen takes place to damage, effectively improved detection efficiency.

Noteworthy are: in a specific embodiment of the present invention, the detection module may adopt a mode of matching the photoelectric sensor with the light source, that is, the light source irradiates the screen to be detected which is fixedly matched with the mobile module 11, and the photoelectric sensor detects parameters such as transmittance or refractive index of light passing through the screen to be detected, so that whether the screen to be detected which is fixedly matched with the mobile module 11 is single or not can be perceived, and the whole structure is simple, easy to purchase and quick to detect.

As shown in fig. 5, 6 and 7, the feeding device further includes a rotating bin unit 20, and the rotating bin unit 20 includes: a silo support 21; the driving module 22, the stock bin bracket 21 is arranged on the driving module 22; a first bin 23, the first bin 23 being disposed on the bin bracket 21, the first bin 23 being for accommodating a plurality of stacked screens to be inspected; the second bin 24 is arranged on the bin bracket 21 and is spaced from the first bin 23; the second bin 24 is used for accommodating a plurality of stacked screens to be inspected; wherein the driving module 22 drives the bin bracket 21 to rotate so as to switch the first bin 23 or the second bin 24 to rotate to the operation position of the separation unit 10. Through setting up drive module 22 drive feed bin support 21 rotation to switch first feed bin 23 or second feed bin 24 and rotate to the operating position of separation unit 10, guaranteed the quick material loading (that is to say fast transport) of treating the screen of examining, effectively improved detection efficiency.

It should be noted that, in actual design, the number of bins can be flexibly set on the bin bracket 21 according to actual use requirements, so as to form a structure similar to a turntable, and further ensure the rapid feeding.

As shown in fig. 6, the first bin 23 and the second bin 24 have the same structure, and each include: a restraining frame 231, the restraining frame 231 being disposed on the bin bracket 21; the tray 232, the tray 232 is movably set in the constraint frame 231, the tray 232 is used for bearing the screen to be inspected, the tray 232 and the inside of the constraint frame 231 form a containing cavity 234, and the containing cavity 234 is used for containing a plurality of stacked screens to be inspected; the feeding motor 233, the feeding motor 233 is arranged on the stock bin bracket 21 or the constraint frame 231, the feeding motor 233 is in driving connection with the tray 232, the feeding motor 233 is electrically connected with the controller, and the feeding motor 233 controls the tray 232 to move along the inner wall of the constraint frame 231 and controls the stacked multiple screens to be detected to move towards the direction close to the separation unit 10. The feeding motor 233 is arranged, and the stacked screens to be detected are driven to move towards the direction close to the separation unit 10 by the control tray 232, so that the rapid feeding of the screens to be detected is further ensured; through setting up the inside formation of tray 232 and restraint support body 231 and hold chamber 234, effectively guaranteed the reliable accommodation to a plurality of screen of waiting to examine of piling up, avoided waiting to examine the problem that the screen scatters to appear.

It should be noted that: in one embodiment of the present invention, the feeding motor 233 is disposed on the bin bracket 21, and the feeding motor 233 is connected to the tray 232 through a belt, and a belt or a synchronous belt is adopted, so that the tray 232 is ensured to move rapidly and have low working noise. In actual use, when one screen is taken away from the accommodating cavity 234, the controller controls the feeding motor 233 to drive the tray 232 to move along the inner wall of the constraint frame 231 by one screen thickness, so as to ensure that one end of the constraint frame 231 close to the separation unit 10 always comprises the screen, and the separation unit 10 can work conveniently.

As shown in fig. 6, the restraint frame 231 includes: an adjustment chassis 2311, the adjustment chassis 2311 being disposed on the bin support 21, the tray 232 being parallel to the adjustment chassis 2311; the first, second, third and fourth adjustment frames 2312, 2313, 2314 and 2315 are movably disposed on the adjustment chassis 2311, respectively, and the size of the accommodation chamber 234 is adjusted to be adapted to the screen to be inspected by adjusting the positions of the first, second, third and fourth adjustment frames 2312, 2313, 2314 and 2315. By the arrangement, the size of the containing cavity 234 and the adaptation of the screen to be detected are effectively guaranteed, the universality of the constraint frame 231 is improved, and the rotary bin unit 20 is further suitable for the screen to be detected with various sizes.

Noteworthy are: as shown in fig. 6, in a specific embodiment of the present invention, the constraint frame 231 adopts a sliding rail and sliding block adjusting structure commonly known in the prior art, that is, an extended sliding rail is provided on the adjusting chassis 2311, the first adjusting frame 2312, the second adjusting frame 2313, the third adjusting frame 2314 and the fourth adjusting frame 2315 are movably provided on the sliding rail through sliding blocks (having freedom of movement in front and back and left and right on a horizontal plane in the view of fig. 6), the sliding blocks and the sliding rails are connected through screws, the screws are turned, and the distance between the first adjusting frame 2312 and the third adjusting frame 2314 (that is, the distance between the front and back) is adjusted through threaded fit, and the distance between the second adjusting frame 2313 and the fourth adjusting frame 2315 is adjusted through threaded fit; and screw thread adjusting mechanisms are arranged between the first adjusting frame 2312 and the second adjusting frame 2313 and between the third adjusting frame 2314 and the fourth adjusting frame 2315, and the distance between the first adjusting frame 2312 and the second adjusting frame 2313 and the distance between the third adjusting frame 2314 and the fourth adjusting frame 2315 (namely, the left and right distance) are effectively adjusted through adjusting the screw thread adjusting mechanisms, so that the free adjustment of the size of the accommodating cavity 234 is realized.

As shown in fig. 7, the driving module 22 includes: a driving cylinder 221, the driving cylinder 221 including a telescopic rod which can move telescopically; the rack 222 is connected with the telescopic rod and moves along with the telescopic rod in a reciprocating and linear mode; a gear 223, the gear 223 being engaged with the rack 222; a rotation fixing part 224, one end of the rotation fixing part 224 is fixedly connected with the stock bin bracket 21, and the other end of the rotation fixing part 224 is fixedly connected with the gear 223; wherein, the driving cylinder 221 drives the rotation fixing part 224 to drive the bin bracket 21 to rotate through the cooperation of the rack 222 and the gear 223. Through setting up the cooperation of drive cylinder 221 through rack 222 and gear 223, the rotatory fixed part 224 of drive drives feed bin support 21 and rotates, has both guaranteed the quick of drive module 22 work, has guaranteed drive module 22 overall structure's simplification again to the later maintenance of being convenient for.

As shown in fig. 7, the driving module 22 further includes a driving housing 225, the driving housing 225 is fixedly arranged, the driving cylinder 221 is arranged in the driving housing 225, a sliding rail is arranged in the driving housing 225, and the rack 222 is in sliding fit with the sliding rail; the gear 223 is rotatably disposed within the drive housing 225; the driving module 22 further includes a buffer 226 and a limiter 227 respectively disposed on the driving housing 225, the buffer 226 is configured to buffer movement of the rack 222, and the limiter 227 limits movement of the rack 222 to restrict a movement range of the rack 222. By arranging the rack 222 to be in sliding fit with the slide rail, the movement of the rack 222 is effectively restrained, the rack 222 is effectively prevented from being deviated, and the working stability is improved; by arranging the limiter 227 to limit the movement of the rack 222, the movement range of the rack 222 is effectively restrained, and by adjusting the movement range of the rack 222, the flexible adjustment of the rotation angles of the first bin 23 and the second bin 24 relative to the bin bracket 21 is realized (for example, each time the driving module 22 works, the first bin 23 and the second bin 24 are rotated 180 degrees relative to the bin bracket 21); by providing the buffer 226, the motion of the rack 222 is effectively buffered, avoiding motion impact and reducing operating noise.

In one embodiment of the present invention, the buffer 226 and the limiter 227 are disposed on both sides of the rack 222, so as to further ensure the reliable operation of the rack 222.

As shown in fig. 1, the feeding device comprises two rotary bin units 20 and two separation units 10, wherein the two rotary bin units 20 are respectively arranged at two sides of the conveying device 30, and the separation units 10 and the rotary bin units 20 are arranged in one-to-one correspondence. Through setting up two rotatory feed bin units 20 and two separation units 10, effectively improved loading attachment's material loading efficiency, and then improved screen detecting system's detection efficiency.

Specifically, the blanking device 60 includes a sorting unit 61, a good unit 62 and a defective unit, the sorting unit 61 is electrically connected with a controller, and the controller controls the sorting unit 61 to convey the screen to the good unit 62 or store the defective unit according to the screen type. By the arrangement, classified storage of the screen is effectively guaranteed.

It should be noted that, in one embodiment of the present invention, the sorting unit 61 may adopt the same structure as the mobile module 11 for screen transportation, i.e., the structure shown in fig. 11; the good unit 62 and the defective unit may have the same structure as the rotary bin unit 20, that is, when a bin is full, the inspected screen is continuously stored by rotating and switching the empty bin.

As shown in fig. 8 and 9, the transfer device 30 includes: the to-be-detected conveying belt 31, wherein the to-be-detected conveying belt 31 is used for driving the to-be-detected screen to move towards the detection device 50; the inspected conveyor belt 32, the inspected conveyor belt 32 is used for driving the screen after the inspection to move towards the blanking device 60; the first sensor 33, the first sensor 33 is electrically connected with the controller, the first sensor 33 is arranged on the conveyor belt 31 to be inspected, and the controller controls the pick-up device 40 to convey the screen to be inspected from the conveyor belt 31 to the detection device 50 in a state that the first sensor 33 senses the screen on the conveyor belt 31 to be inspected; the second sensor 34 is electrically connected with the controller, the second sensor 34 is arranged on the inspected conveyor belt 32, and the controller controls the blanking device 60 to store the screens in a classified manner according to the screen types in a state that the second sensor 34 senses the screens on the inspected conveyor belt 32; a guide structure 35, the guide structure 35 being arranged on the conveyor belt 31 to be inspected; the guiding structure 35 is used for guiding the screen on the conveyor belt 31 to be inspected; wherein the detection device 50 is located between the inspected conveyor belt 31 and the inspected conveyor belt 32. By providing the to-be-inspected conveyor belt 31 and the inspected conveyor belt 32, it is ensured that the conveyance of the to-be-inspected screen and the conveyance of the inspected screen are not affected each other, and the conveying efficiency of the conveying device 30 is effectively improved. By arranging the guide structure 35, the screen on the conveyor belt 31 to be detected is effectively guided, and the phenomenon of scattering of the screen is avoided.

Noteworthy are: the inspected conveyor belt 32 may also be provided with a guide structure 35, which may be flexibly arranged according to the actual use requirements. In one embodiment of the present invention, the guiding structure 35 is an arc-shaped guiding workpiece, so as to ensure that the guiding of the screen is softer and reduce the collision of the screen.

As shown in fig. 10, the pickup device 40 includes: pick up rack 41; the power unit 42, the picking support 41 is arranged on the power unit 42, and the power unit 42 drives the picking support 41 to move close to or away from the conveying device 30 or the detecting device 50; the picking unit is arranged on the picking bracket 41, is detachably and fixedly matched with a single screen to be inspected, and comprises a plurality of sucker assemblies 431, and the plurality of sucker assemblies 431 jointly adsorb the single screen to be inspected. This arrangement ensures both simplification of the whole of the pickup device 40 and operational reliability of the pickup device 40.

Specifically, the two pickup units are respectively a first pickup unit 43 and a second pickup unit 44, the first pickup unit 43 and the second pickup unit 44 are arranged on the pickup support 41 at set distance intervals, and the set distance and the travel of the power unit 42 driving the pickup support 41 to move are adapted, so that a screen to be inspected fixed with the first pickup unit 43 and a screen inspected fixed with the second pickup unit 44 move to the detection device 50 and the conveying device 30 respectively at the same time. By setting the first pick-up unit 43 and the second pick-up unit 44, it is ensured that the work efficiency of the pick-up units is further improved for the simultaneous conveyance at the detection device 50 and the conveying device 30.

As shown in fig. 1, the screen detection system further includes an upper chassis 70 and a lower chassis 80, the upper chassis 70 being disposed above the lower chassis 80; the separating unit 10 is disposed on the upper frame 70, the transfer device 30 is disposed on the lower frame 80 below the upper frame 70, the pickup device 40 is disposed on the upper frame 70, and the detection device 50 is disposed on the lower frame 80. By providing the upper housing 70 and the lower housing 80, the inspection line is effectively carried, ensuring reliable installation of each device.

It should be noted that, in a specific embodiment of the present invention, the lower frame 80 is provided with a horizontal adjusting mechanism and universal wheels, so that the overall level of the screen detection system is ensured, no inclination occurs, and the detection precision is improved by arranging the horizontal adjusting mechanism; through setting up the universal wheel, guaranteed screen detecting system's mobility.

In one embodiment of the present invention, as shown in fig. 2, the screen detection system further includes a housing 90, a mounting cavity is formed in the housing 90, the feeding device, the conveying device 30, the pickup device 40 and the discharging device 60 are all located in the mounting cavity, and a controller is disposed on the housing 90 to control the detection assembly line to work; the detection device 50 is a secondary element detection apparatus. By providing the housing 90, not only is its internal structure protected, but also screen detection is ensured to be free from interference of external environment.

In summary, the present invention provides a screen detection system, by arranging the supporting module 12 and the moving module 11 in the separating unit 10 to cooperate, a single screen to be detected is deformed, and the deformed screen to be detected can be effectively separated from other screens to be detected adhered together, so that the separating unit 10 can quickly and reliably separate the single screen to be detected from a plurality of stacked screens to be detected, thereby reducing the probability of shutdown of the screen detection system due to error reporting, improving the reliability and continuity of screen detection work, and further effectively improving the efficiency of screen detection and the accuracy of detection results; according to the invention, the controller, the feeding device, the conveying device 30 and the picking device 40 which are respectively and electrically connected with the controller are arranged, the detection device 50 and the blanking device 60 ensure that the screen detection system can automatically and rapidly carry out continuous actions such as screen sorting, automatic conveying, automatic detection, automatic classifying and storing according to the screen type, and the like.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen detection system, the screen detection system comprising: the device comprises a controller, a feeding device, a conveying device (30), a pickup device (40), a detection device (50) and a discharging device (60), wherein the feeding device, the conveying device (30), the pickup device (40), the detection device (50) and the discharging device (60) are respectively and electrically connected with the controller, and are sequentially arranged to form a detection assembly line; the feeding device conveys a plurality of screens to be detected to the conveying device (30), the pick-up device (40) conveys the screens to be detected on the conveying device (30) to the detection device (50) one by one, the detection device (50) detects the screens to be detected, then determines that the screens belong to the types of good or defective screens, the pick-up device (40) conveys the screens detected at the detection device (50) back to the conveying device (30) again, the conveying device (30) conveys the detected screens to the blanking device (60), and the controller controls the blanking device (60) to store the screens in a classified mode according to the types of the screens;

The feeding device comprises a separation unit (10), wherein the separation unit (10) separates a single screen to be detected from a plurality of stacked screens to be detected and conveys the single screen to the conveying device (30); the separation unit (10) comprises: the mobile module (11) and the supporting module (12) are detachably and fixedly matched with a single screen to be detected, and drive the single screen to be detected to move; the support module (12) is abutted against the surface of a single screen to be inspected, which is fixedly matched with the moving module (11), and the support module (12) and the moving module (11) are matched to deform the single screen to be inspected so as to separate the single screen to be inspected;

The separation unit (10) further comprises a vibration module (13); the vibration module (13) is arranged on the moving module (11), and the vibration module (13) drives the single screen to be inspected to vibrate in a state that the support module (12) is abutted against the surface of the single screen to be inspected so as to separate the single screen to be inspected from the stacked multiple screens to be inspected; the vibration module (13) comprises a vibration rod (131) and a vibration cylinder (132) for driving the vibration rod (131) to vibrate, the vibration cylinder (132) is electrically connected with the controller, and the vibration cylinder (132) is arranged on the mobile module (11); the vibrating rod (131) drives a single screen to be inspected to vibrate; the vibration module (13) further comprises an elastic vibration head (133), the elastic vibration head (133) is connected with one end, close to the screen to be detected, of the vibration rod (131), and the vibration rod (131) is contacted with a single screen to be detected through the elastic vibration head (133) to drive the screen to be detected to vibrate;

The mobile module (11) comprises: a moving support (111); the moving part (112) is connected with the moving bracket (111) and is used for driving the moving bracket (111) to move; a fixing portion (113), the fixing portion (113) being provided on the moving bracket (111), the fixing portion (113) being detachably fixedly fitted with a single screen to be inspected; the fixed part (113) comprises a plurality of sucking disc pieces (1131), and the sucking disc pieces (1131) are arranged on the movable bracket (111) at intervals; a plurality of sucking disc pieces (1131) jointly suck a single screen to be inspected; the supporting module (12) comprises a supporting rod (121) and an elastic head (122), the supporting rod (121) is arranged on the moving module (11), the elastic head (122) is connected with one end, close to a screen to be detected, of the supporting rod (121), and the elastic head (122) is abutted to the screen to be detected; the whole length of the supporting rod (121) and the elastic head (122) is slightly longer than the length of the suction disc piece (1131);

The loading attachment still includes rotatory feed bin unit (20), rotatory feed bin unit (20) include: a stock bin bracket (21); the storage bin bracket (21) is arranged on the driving module (22); a first silo (23), the first silo (23) being arranged on the silo support (21), the first silo (23) being used for accommodating a plurality of stacked screens to be inspected; the second bin (24) is arranged on the bin bracket (21) and is arranged at intervals with the first bin (23); the second bin (24) is used for accommodating a plurality of stacked screens to be inspected; wherein the driving module (22) drives the bin bracket (21) to rotate so as to switch the first bin (23) or the second bin (24) to rotate to the operation position of the separation unit (10); the drive module (22) comprises: -a driving cylinder (221), the driving cylinder (221) comprising a telescopic rod for telescopic movement; the rack (222) is connected with the telescopic rod and moves along with the telescopic rod in a reciprocating and linear mode; a gear (223), the gear (223) being meshed with the rack (222); a rotation fixing part (224), wherein one end of the rotation fixing part (224) is fixedly connected with the stock bin bracket (21), and the other end of the rotation fixing part (224) is fixedly connected with the gear (223); wherein, the driving cylinder (221) drives the rotation fixing part (224) to drive the stock bin bracket (21) to rotate through the cooperation of the rack (222) and the gear (223); the driving module (22) further comprises a driving shell (225), the driving shell (225) is fixedly arranged, the driving cylinder (221) is arranged in the driving shell (225), a sliding rail is arranged in the driving shell (225), and the rack (222) is in sliding fit with the sliding rail; the gear (223) is rotatably disposed within the drive housing (225); the driving module (22) further comprises a buffer (226) and a limiter (227) which are respectively arranged on the driving shell (225), the buffer (226) is used for buffering the movement of the rack (222), and the limiter (227) limits the movement of the rack (222) so as to restrict the movement range of the rack (222).

2. The screen detection system according to claim 1, wherein the separation unit (10) further comprises a detection module, the detection module being electrically connected to the controller; the detection module is used for detecting whether a screen to be detected which is fixedly matched with the mobile module (11) is single.

3. The screen detection system according to claim 1, wherein the first bin (23) and the second bin (24) are identical in structure, each comprising:

the constraint frame body (231), the constraint frame body (231) is arranged on the stock bin bracket (21);

The tray (232), the tray (232) is movably arranged in the constraint frame body (231), the tray (232) is used for bearing a screen to be inspected, a containing cavity (234) is formed in the tray (232) and the constraint frame body (231), and the containing cavity (234) is used for containing a plurality of stacked screens to be inspected;

The feeding motor (233), feeding motor (233) set up feed bin support (21) or constraint support body (231), feeding motor (233) with tray (232) drive connection, feeding motor (233) with the controller electricity is connected, feeding motor (233) are through control tray (232) are followed the inner wall motion of constraint support body (231), and a plurality of screen that awaits measuring of control stack are to being close to the direction motion of separation unit (10).

4. A screen detection system according to claim 3, wherein the restraining frame (231) comprises:

An adjustment chassis (2311), the adjustment chassis (2311) being arranged on the silo support (21), the tray (232) being parallel to the adjustment chassis (2311);

First alignment jig (2312), second alignment jig (2313), third alignment jig (2314) and fourth alignment jig (2315), first alignment jig (2312) second alignment jig (2313) third alignment jig (2314) and fourth alignment jig (2315) movably set up respectively on adjustment chassis (2311), through the regulation first alignment jig (2312) second alignment jig (2313) third alignment jig (2314) with the position of fourth alignment jig (2315) is adjusted size adaptation in holding chamber (234) is in the screen of waiting to examine.

5. The screen detection system according to claim 1, wherein the feeding device comprises two rotary bin units (20) and two separation units (10), the two rotary bin units (20) are respectively arranged on two sides of the conveying device (30), and the separation units (10) and the rotary bin units (20) are arranged in a one-to-one correspondence.

6. The screen detection system according to claim 1, wherein the blanking device (60) comprises a sorting unit (61), a good unit (62) and a defective unit, the sorting unit (61) is electrically connected with the controller, and the controller controls the sorting unit (61) to convey a screen to the good unit (62) or the defective unit for storage according to the screen type.

7. Screen detection system according to claim 1, characterized in that said conveying means (30) comprise:

the to-be-detected conveying belt (31), wherein the to-be-detected conveying belt (31) is used for driving a to-be-detected screen to move towards the detection device (50);

the inspected conveyor belt (32) is used for driving the detected screen to move towards the blanking device (60);

A first sensor (33), the first sensor (33) is electrically connected with the controller, the first sensor (33) is arranged on the conveyor belt (31) to be inspected, and the controller controls the pick-up device (40) to convey the screen to be inspected from the conveyor belt (31) to the detection device (50) in a state that the first sensor (33) senses the screen on the conveyor belt (31) to be inspected;

the second inductor (34) is electrically connected with the controller, the second inductor (34) is arranged on the inspected conveyor belt (32), and the controller controls the blanking device (60) to store the screens in a classified mode according to the screen types under the condition that the second inductor (34) senses the screens on the inspected conveyor belt (32);

a guide structure (35), wherein the guide structure (35) is arranged on the conveyor belt (31) to be detected; the guide structure (35) is used for guiding a screen on the conveyor belt (31) to be detected;

Wherein the detection device (50) is located between the conveyor belt (31) to be inspected and the conveyor belt (32) to be inspected.

8. The screen detection system according to claim 1, wherein the pickup device (40) includes:

A pick-up stand (41);

The power unit (42), the said picking up the support (41) to set up on the said power unit (42), the said power unit (42) drives the said picking up the support (41) to make the approaching or moving away from the said conveying appliance (30) or said detecting appliance (50);

The picking unit is arranged on the picking bracket (41), the picking unit is detachably and fixedly matched with a single screen to be inspected, the picking unit comprises a plurality of sucker assemblies (431), and the sucker assemblies (431) absorb the single screen to be inspected together.

9. The screen detection system according to claim 8, wherein the number of the pickup units is two, namely a first pickup unit (43) and a second pickup unit (44), the first pickup unit (43) and the second pickup unit (44) are arranged on the pickup support (41) at set distance intervals, and the set distance and the stroke of the power unit (42) driving the pickup support (41) to move are adapted so that a screen to be detected fixed to the first pickup unit (43) and a screen to be detected fixed to the second pickup unit (44) move to the detection device (50) and the conveying device (30) respectively at the same time.

10. The screen detection system of claim 1, further comprising an upper housing (70) and a lower housing (80), the upper housing (70) being disposed above the lower housing (80); the separating unit (10) is arranged on the upper frame (70), the conveying device (30) is arranged on the lower frame (80) and is positioned below the upper frame (70), the pickup device (40) is arranged on the upper frame (70), and the detecting device (50) is arranged on the lower frame (80).