CN219245335U

CN219245335U - High-speed screening machine

Info

Publication number: CN219245335U
Application number: CN202223074494.7U
Authority: CN
Inventors: 朱炳华
Original assignee: Dongguan Dianhang Automation Equipment Technologies Co ltd
Current assignee: Dongguan Dianhang Automation Equipment Technologies Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-06-23
Anticipated expiration: 2032-11-21

Abstract

The utility model provides a high-speed screening machine, which comprises a base, wherein a rotating mechanism and a supporting seat arranged on the rotating mechanism are arranged on the base, and an objective table with an annular structure is arranged on the supporting seat; the base is provided with a top vision module, a rear vision module, a bottom vision module, a front vision module, a left vision module and a right vision module which are sequentially arranged along the axial direction of the object stage and used for inspecting the product; the base is also provided with a screening mechanism positioned behind the right visual module; a feeding vibration disc positioned in front of the top vision module is arranged on the base, and the discharging direction of the feeding vibration disc is the tangential direction of the objective table; the base is also provided with a position adjusting component positioned between the feeding vibration disc and the top vision module; through all carrying out image acquisition and detection to six surfaces of product to can just can realize six face image acquisition after the product moves according to the route, improve detection efficiency.

Description

High-speed screening machine

Technical Field

The utility model relates to the field of product detection equipment, in particular to a high-speed screening machine.

Background

Products with small volume and regular shapes can be detected and screened by visual detection, such as SMT components, semiconductor electronic elements, small electronic devices, hardware stamping parts or electronic hardware parts, and the like, and defects such as sundries, black spots, burrs, dirt, scratches, material flowers, multiple glues, bubbles, flow marks and the like can be found and screened in the detection process; for example, SMT component screening, in particular, SMT is a surface mount technology (surface mount technology) (Surface Mounted Technology abbreviation), which is currently one of the most popular technologies and techniques in the electronic assembly industry. SMT is an important link in the supply chain of the electronics manufacturing industry. The SMT stencil is a flat plate mold that must be used in a stencil printing process or a dispensing process, and is typically a steel mesh. SMT steel mesh manufacturing is an essential key process in the solder paste printing process, directly affecting the solder paste printing quality and relating to the quality of the whole SMT process. The SMT quality problem 70% is related to the printing of solder paste, where defects caused by poor steel mesh alone account for 35%. Surface mounting often has quality defects of less tin, more tin, no tin, bridging tin beads, tin breakage, tombstoning, original document displacement and the like, and the defects are directly related to a printing steel mesh.

As disclosed in chinese patent CN207502427U, a visual inspection apparatus for PCB board comprises a frame, a board feeding device and an image acquisition device, wherein the frame is provided with a horizontal beam, a Y-direction driving mechanism, a machine head mounting seat and an X-direction driving mechanism, and the image acquisition device is fixedly mounted on the machine head mounting seat; the machine head mounting seat is provided with a light source bracket and a backlight source fixed on the light source bracket, the light source bracket is provided with a vertical long hole, and the light source bracket is in threaded connection with the machine head mounting seat after passing through the vertical long hole through a screw; the backlight is an annular light source or a frame-shaped light source, the geometric center of the view finding frame of the image acquisition device coincides with the geometric center of the backlight, the detection speed is high, the accuracy is high, the detection efficiency and accuracy of the PCB are greatly improved, the reliability is higher, and the practicability is higher.

The above patent mainly discloses a structure for carrying out image acquisition on a product by matching an image acquisition device with a light source, and the structure can move in two directions to realize one-surface detection, but for products of which six surfaces are required to be detected, the structure needs to carry out angle steering adjustment on the product; therefore, an automatic detection structure suitable for six-face detection needs to be provided, and manual participation in product angle adjustment is avoided.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a high-speed screening machine, and solves the problems that the image acquisition of the prior disclosed equipment mainly aims at acquiring one surface and is not suitable for visual detection of products of which six surfaces all need to acquire images.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the high-speed screening machine comprises a base, wherein a rotating mechanism and a supporting seat arranged on the rotating mechanism are arranged on the base, and an objective table with an annular structure is arranged on the supporting seat;

the base is provided with a top vision module, a rear vision module, a bottom vision module, a front vision module, a left vision module and a right vision module which are sequentially arranged along the axial direction of the objective table and used for inspecting products;

the base is also provided with a screening mechanism positioned behind the right visual module;

a feeding vibration disc positioned in front of the top vision module is arranged on the base, and the discharging direction of the feeding vibration disc is the tangential direction of the objective table;

the base is also provided with a position adjusting component positioned between the feeding vibration disc and the top vision module.

Preferably, the top vision module comprises a first sliding seat fixed on the base and a second sliding seat transversely and slidably installed on the first sliding seat, a third sliding seat and a fourth sliding seat are longitudinally and slidably installed on the second sliding seat, the fourth sliding seat is located above the third sliding seat, a lighting lamp is installed on the third sliding seat, and an image acquisition sensor for acquiring images is installed on the fourth sliding seat.

Preferably, the bottom vision module comprises a fifth sliding seat fixed on the base and a sixth sliding seat transversely and slidably arranged on the fifth sliding seat, wherein a seventh sliding seat and an eighth sliding seat above the seventh sliding seat are arranged on the sixth sliding seat; the eighth slide seat is provided with a lighting lamp, and the seventh slide seat is provided with an image acquisition sensor for acquiring images.

Preferably, the rear vision module, the front vision module, the left vision module and the right vision module all comprise a ninth sliding seat fixed on the base and a tenth sliding seat transversely arranged on the ninth sliding seat in a sliding manner, an eleventh sliding seat, a twelfth sliding seat and a thirteenth sliding seat are sequentially arranged on the tenth sliding seat from bottom to top, an illumination lamp with a half-section structure is arranged on the twelfth sliding seat, a reflector arranged behind the illumination lamp is arranged on the eleventh sliding seat, and an image acquisition sensor arranged above the reflector and used for acquiring images is arranged on the thirteenth sliding seat.

Preferably, the screening mechanism comprises a screening shell mounted on the base, and at least one waste collection box and at least one good product collection box which are arranged along the circumferential direction of the objective table are mounted in the screening shell;

a nozzle structure for blowing the product into the waste collection box or the good collection box is arranged on the screening shell;

the base is also provided with a material waiting box positioned behind the screening shell, and the screening shell is provided with a baffle structure used for guiding products into the material waiting box.

Preferably, the position adjusting assembly comprises a first upright and a second upright which are arranged on the base, a first adjusting block and a second adjusting block are arranged on the first upright, a first guiding block for guiding the front part of the product is arranged on the first adjusting block, and a second guiding block for guiding the rear part of the product is arranged on the second adjusting block;

and a verification guide block for verifying the moving position of the product is arranged on the second vertical rod.

Preferably, the feeding device further comprises a feeding mechanism located above the feeding vibration disc, the feeding mechanism comprises a mounting seat and a vibrator mounted on the mounting seat, and a guide chute inclined towards the feeding vibration disc and a hopper located above the guide chute are mounted on the vibrator.

Preferably, the screening device further comprises an air path system, wherein the air path system comprises an air storage tank and an air guide pipeline connected to an air outlet of the air storage tank, and the air guide pipeline is connected to the screening mechanism through an electromagnetic valve.

Preferably, the automatic control device further comprises a shell component used for installing the base, wherein a PLC industrial personal computer used for controlling the electromagnetic valve, the rotating mechanism, the top vision module, the rear vision module, the bottom vision module, the front vision module, the left vision module and the right vision module is installed in the shell component.

Preferably, the shell component is integrated with an interface component, a control button and a power connector which are connected to the PLC industrial personal computer;

and the shell component is also provided with an air inlet pressure regulating valve group communicated with the air storage tank.

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

the rotating mechanism and the object stage rotate with the product to realize position change, and under the condition that the angle of the product does not need to be adjusted and changed, the top vision module, the rear vision module, the bottom vision module, the front vision module, the left vision module and the right vision module which are sequentially arranged are used for respectively carrying out image acquisition and detection on six surfaces of the product, so that six-surface image acquisition can be realized after the product moves along a path, and the detection efficiency is improved; meanwhile, defective products and good products are screened and separated in a screening mechanism according to the image acquisition and detection results;

meanwhile, the feeding vibration plate can feed the product to the object stage for feeding, the position of the product can be adjusted through the position adjusting assembly, the product can be located on a concentric circle after being fed, and the consistency of visual image acquisition information is guaranteed.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a top vision module according to the present utility model;

FIG. 3 is a schematic diagram of a bottom vision module according to the present utility model;

FIG. 4 is a schematic diagram of the rear, front, left and right vision modules according to the present utility model;

FIG. 5 is a schematic view of the screening mechanism of the present utility model;

FIG. 6 is a schematic view of a position adjustment assembly according to the present utility model;

FIG. 7 is a schematic diagram of a feeding mechanism according to the present utility model;

FIG. 8 is a schematic structural view of an embodiment of the present utility model integrated into a chassis assembly;

in the drawing the view of the figure,

base 1, rotating mechanism 2, supporting seat 3, stage 4, top vision module 5, rear vision module 6, bottom vision module 7, front vision module 8, left vision module 9, right vision module 10, screening mechanism 11, feed vibratory pan 12, position adjustment assembly 13, first slide 14, second slide 15, third slide 16, fourth slide 17, illuminating lamp 18, image acquisition sensor 19, fifth slide 20, sixth slide 21, seventh slide 22, eighth slide 23, ninth slide 24, tenth slide 25, eleventh slide 26, twelfth slide 27, thirteenth slide 28, screening housing 29, reject collection box 30, good product collection box 31, nozzle structure 32, waiting box 33, baffle structure 34, first upright 35, second upright 36, first adjustment block 37, second adjustment block 38, first guide block 39, second guide block 40, check guide block 41, feeding mechanism 42, mounting seat 43, vibrator 44, guide 45, hopper 46, air reservoir 47, housing assembly 49, air intake stack 50, air regulating valve 51, and PLC assembly 50.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

As shown in fig. 1 to 8, in the embodiment of the present utility model, a high-speed screening machine is provided, including a casing assembly 48, where the casing assembly 48 is of a frame structure and a peripheral baffle is formed by sheet metal forming, an openable cabinet door is provided on the casing assembly 48, and the whole structure of the casing assembly 48 is of a cuboid structure; the specific casing assembly 48 may be of a conventional structure, and mainly includes an integrated structure formed by integrally mounting internal components; the casing assembly 48 is internally provided with the accessory structures such as the PLC 49, the interface assembly, the control button, the power connector, the communication interface, the air inlet pressure regulating valve set 50 and the like, the accessory structures are matched with internal devices to operate, products in the prior art are integrated, and in addition, the mode of realizing system control for the PLC 49 is also realized by adopting the existing control program, so that the detailed description of how to control is not needed in the embodiment. The embodiment mainly aims at realizing image acquisition and detection on six surfaces in the moving process of products (such as SMT components, semiconductor electronic elements, small electronic devices, hardware stamping parts or electronic hardware parts) to be detected, and particularly judging that the judging result is obtained by comparing preset software in the PLC (programmable logic controller) 49, and the screening is realized.

Specifically, the device comprises a base 1, wherein the base 1 is fixedly arranged in a shell assembly 48 to form a reliable support; meanwhile, a rotating mechanism 2 and a supporting seat 3 arranged on the rotating mechanism 2 are arranged on the base 1, and an objective table 4 with a ring-shaped structure is arranged on the supporting seat 3, wherein the rotating mechanism 2 can adopt a motor, and after the rotating mechanism 2 carries the supporting seat 3 and the objective table 4 to rotate, the product placed on the objective table 4 can be carried to synchronously rotate; in order to realize the display of the product, the stage 4 is made of transparent material. The base 1 is provided with a top vision module 5, a rear vision module 6, a bottom vision module 7, a front vision module 8, a left vision module 9 and a right vision module 10 which are sequentially arranged along the axial direction of the object stage 4 and used for inspecting products, and the products placed on the object stage 4 sequentially pass through the top vision module 5, the rear vision module 6, the bottom vision module 7, the front vision module 8, the left vision module 9 and the right vision module 10, respectively acquire information on top pictures, rear pictures, bottom pictures, front pictures, left pictures and right pictures of the products and feed back the information to the PLC (programmable logic controller) industrial personal computer 49 for carrying out preset comparison, so that the products are comprehensively judged, good products and the products with problems can be distinguished, and the follow-up screening is facilitated.

The top vision module 5 comprises a first sliding seat 14 fixed on the base 1 and a second sliding seat 15 transversely and slidably arranged on the first sliding seat 14, wherein a third sliding seat 16 and a fourth sliding seat 17 are longitudinally and slidably arranged on the second sliding seat 15, the fourth sliding seat 17 is positioned above the third sliding seat 16, an illumination lamp 18 is arranged on the third sliding seat 16, and an image acquisition sensor 19 for acquiring images is arranged on the fourth sliding seat 17; the light emitted by the illumination lamp 18 can ensure that the top surface of the product is illuminated, so that the image acquisition sensor 19 can obtain clear picture information; specifically, the illumination lamp 18 and the image acquisition sensor 19 may be any products of the prior art, such as a mascot lamp set, a CCD high-speed camera, and the like.

Meanwhile, the bottom vision module 7 comprises a fifth sliding seat 20 fixed on the base 1 and a sixth sliding seat 21 transversely and slidably arranged on the fifth sliding seat 20, wherein a seventh sliding seat 22 and an eighth sliding seat 23 positioned above the seventh sliding seat 22 are arranged on the sixth sliding seat 21; the eighth slide seat 23 is provided with an illumination lamp 18, and the seventh slide seat 22 is provided with an image acquisition sensor 19 for acquiring images; also, after the irradiation lamp 18 illuminates the bottom surface of the product, information is acquired on the bottom surface image by the image acquisition sensor 19.

In addition, the rear vision module 6, the front vision module 8, the left vision module 9 and the right vision module 10 mainly collect image information on the front, back, left and right sides of a product on the stage 4, and each include a ninth slide 24 fixed on the base 1 and a tenth slide 25 mounted on the ninth slide 24 in a sliding manner, an eleventh slide 26, a twelfth slide 27 and a thirteenth slide 28 are sequentially mounted on the tenth slide 25 from bottom to top, an illumination lamp 18 with a half-cut structure is mounted on the twelfth slide 27, a reflector 51 located behind the illumination lamp 18 is mounted on the eleventh slide 26, and an image collecting sensor 19 located above the reflector 51 is mounted on the thirteenth slide 28, so that the image collecting sensor 19 is required to collect images on the front, back, left and right sides of the product in an upward direction, the image is convenient to increase the image space occupation under the condition that the inside is reduced, the image is required to rotate, and the front, the left and right side surfaces of the product are required to be illuminated by the illumination lamp 18, and the left side surfaces of the stage 18 are required to be accurately illuminated due to the interference.

The image information of each surface is collected through the visual modules arranged according to the six outer surfaces of the product and then is transmitted to the PLC 49 for preset comparison, so that the subsequent screening is facilitated.

Thus, the base 1 is further provided with a screening mechanism 11 located behind the right vision module 10, and the screening mechanism 11 screens the good products and defective products; specifically, the screening mechanism 11 includes a screening housing 29 mounted on the base 1, and at least one reject collecting box 30 and at least one good collecting box 31 are mounted in the screening housing 29 and arranged along the circumferential direction of the stage 4; the screening shell 29 is provided with a nozzle structure 32 for blowing the product into the waste collection box 30 or the good product collection box 31, the spraying structure is connected with an electromagnetic valve, and the positions corresponding to the waste collection box 30 and the good product collection box 31 are controlled by opening and closing the electromagnetic valve according to signals sent by the PLC industrial personal computer 49; when the products are judged to be good after the image acquisition information is compared, after the products leave the right visual module 10, the good products are screened out firstly, the products are blown into the good product collecting box 31 through the nozzle structures 32 at the corresponding positions, and in order to ensure screening reliability, the number of the good product collecting boxes 31 and the corresponding nozzle structures 32 can be multiple; when the product which is judged to be defective after the image acquisition information comparison is moved to the position of the waste collection box 30, the waste is blown into the waste collection box 30 through the corresponding nozzle structure 32, so that the screening of good products and waste is realized. The products which are possibly not separated in time or not judged to be accurate in the screening process continue to move backwards, a material box 33 which is positioned behind the screening shell 29 is further installed on the base 1, a baffle structure 34 for guiding the products into the material box 33 is installed on the screening shell 29, the products which cannot be determined or leaked are guided and discharged into the material box 33 through the baffle structure 34, and the detection can be repeated later. The good product collecting box 31, the waste product collecting box 30 and the material waiting box 33 are all of an upper end opening structure, and a handle structure is arranged on the side surface, so that the good product collecting box is convenient to pull out or push in; and a limiting structure for moving and positioning each box is further arranged on the base 1, so that the effect of quick placement and positioning is improved.

Specifically, the screening device further comprises an air path system, wherein the air path system comprises an air storage tank 47 and an air guide pipeline connected to an air outlet of the air storage tank 47, and the air guide pipeline is connected to the screening mechanism 11 through an electromagnetic valve; specifically, the air storage tank 47 adjusts air storage pressure in the air storage tank 47 through a pressure regulating valve assembly on the casing assembly 48, and electromagnetic valves corresponding to different nozzle structures 32 at the position of the screening mechanism 11 are opened through the electromagnetic valves according to air blowing conditions, so that an air blowing conduction process is realized.

When the product is fed onto the object stage 4, the product needs to be fed sequentially, in order to improve efficiency, a feeding vibration plate 12 positioned in front of the top vision module 5 is arranged on the base 1, and the discharging direction of the feeding vibration plate 12 is the tangential direction of the object stage 4; wherein the feeding vibration plate 12 adopts the existing product structure, and the feeding vibration plate 12 with different models can be replaced according to different products of visual inspection according to actual needs, so that various product feeding processes can be realized. Meanwhile, in order to facilitate feeding of the feeding vibration disc 12, the feeding vibration disc feeding device further comprises a feeding mechanism 42 located above the feeding vibration disc 12, the feeding mechanism 42 comprises a mounting seat 43 and a vibrator 44 mounted on the mounting seat 43, a guide groove 45 inclined towards the feeding vibration disc 12 and a hopper 46 located above the guide groove 45 are mounted on the vibrator 44, products to be detected are discharged into the feeding vibration disc 12 through the guide groove 45 in batches through the hopper 46, and meanwhile, the moving speed of the products in the guide groove 45 can be accelerated through the vibrator 44.

After feeding from the feeding vibration plate 12 to the objective table 4, the position of the product on the objective table 4 needs to be adjusted, so that the follow-up image information collection of each surface can be adapted, and a position adjusting assembly 13 positioned between the feeding vibration plate 12 and the top vision module 5 is further arranged on the base 1; specifically, the position adjusting assembly 13 comprises a first upright rod 35 and a second upright rod 36 which are installed on the base 1, a first adjusting block 37 and a second adjusting block 38 are installed on the first upright rod 35, a first guiding block 39 for guiding the front part of a product is installed on the first adjusting block 37, and a second guiding block 40 for guiding the rear part of the product is installed on the second adjusting block 38; the second upright rod 36 is provided with a checking guide block 41 for checking the moving position of the product, the front part and the rear part of the product are respectively subjected to angle guiding adjustment through the inclination angle adjustment of the first guide block 39 and the second guide block 40, the position of the product is checked through the checking guide block 41, and the product is ensured to be positioned on a preset central circle after being adjusted, so that the products placed on the object stage 4 are all positioned on the same central circle, and the acquisition of image information of six viewing angle faces can be realized in cooperation with the follow-up.

In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. A high-speed screening machine comprising a base (1), characterized in that: the base (1) is provided with a rotating mechanism (2) and a supporting seat (3) arranged on the rotating mechanism (2), and the supporting seat (3) is provided with an objective table (4) with an annular structure;

the base (1) is provided with a top vision module (5), a rear vision module (6), a bottom vision module (7), a front vision module (8), a left vision module (9) and a right vision module (10) which are sequentially arranged along the axial direction of the objective table (4) and used for inspecting products;

the base (1) is also provided with a screening mechanism (11) positioned behind the right visual module (10);

a feeding vibration disc (12) positioned in front of the top vision module (5) is arranged on the base (1), and the discharging direction of the feeding vibration disc (12) is the tangential direction of the objective table (4);

the base (1) is also provided with a position adjusting component (13) positioned between the feeding vibration disc (12) and the top vision module (5).

2. A high speed screening machine according to claim 1, wherein: the top vision module (5) is including fixing first slide (14) on base (1) and horizontal slidable mounting second slide (15) on first slide (14), vertical slidable mounting has third slide (16) and fourth slide (17) on second slide (15), fourth slide (17) are located third slide (16) top, install irradiation lamp (18) on third slide (16), install image acquisition sensor (19) that are used for gathering the image on fourth slide (17).

3. A high speed screening machine according to claim 2, wherein: the bottom vision module (7) comprises a fifth sliding seat (20) fixed on the base (1) and a sixth sliding seat (21) transversely and slidably arranged on the fifth sliding seat (20), wherein a seventh sliding seat (22) and an eighth sliding seat (23) arranged above the seventh sliding seat (22) are arranged on the sixth sliding seat (21); an illumination lamp (18) is mounted on the eighth sliding seat (23), and an image acquisition sensor (19) for acquiring images is mounted on the seventh sliding seat (22).

4. A high speed screening machine according to claim 3, wherein: rear portion vision module (6) front portion vision module (8) left portion vision module (9) and right portion vision module (10) all include ninth slide (24) and the horizontal slidable mounting of fixing on base (1) tenth slide (25) on ninth slide (24), install eleventh slide (26), twelfth slide (27) and thirteenth slide (28) on tenth slide (25) from bottom to top in proper order, install on twelfth slide (27) and be half structure's shot lamp (18), install on eleventh slide (26) and be located reflector (51) at the rear of shot lamp (18), install on thirteenth slide (28) and be located reflector (51) top and be used for gathering image acquisition sensor (19).

5. A high speed screening machine according to claim 1, wherein: the screening mechanism (11) comprises a screening shell (29) arranged on the base (1), and at least one waste collection box (30) and at least one good product collection box (31) which are arranged along the circumferential direction of the objective table (4) are arranged in the screening shell (29);

a nozzle structure (32) for blowing the product into the waste collection box (30) or the good collection box (31) is arranged on the screening shell (29);

the base (1) is also provided with a material box (33) which is positioned behind the screening shell (29), and the screening shell (29) is provided with a baffle structure (34) which is used for guiding products into the material box (33).

6. A high speed screening machine according to any one of claims 1-5, wherein: the position adjusting assembly (13) comprises a first vertical rod (35) and a second vertical rod (36) which are arranged on the base (1), a first adjusting block (37) and a second adjusting block (38) are arranged on the first vertical rod (35), a first guide block (39) for guiding the front part of a product is arranged on the first adjusting block (37), and a second guide block (40) for guiding the rear part of the product is arranged on the second adjusting block (38);

and a verification guide block (41) for verifying the moving position of the product is arranged on the second vertical rod (36).

7. A high speed screening machine according to claim 6, wherein: the feeding device is characterized by further comprising a feeding mechanism (42) located above the feeding vibration disc (12), wherein the feeding mechanism (42) comprises a mounting seat (43) and a vibrator (44) mounted on the mounting seat (43), and a guide groove (45) inclined towards the feeding vibration disc (12) and a hopper (46) located above the guide groove (45) are mounted on the vibrator (44).

8. A high speed screening machine according to claim 7, wherein: the air channel system comprises an air storage tank (47) and an air guide pipeline connected to an air outlet of the air storage tank (47), and the air guide pipeline is connected to the screening mechanism (11) through an electromagnetic valve.

9. A high speed screening machine according to claim 8, wherein: the automatic control device is characterized by further comprising a shell component (48) used for installing the base (1), wherein a PLC industrial personal computer (49) used for controlling the electromagnetic valve, the rotating mechanism (2), the top vision module (5), the rear vision module (6), the bottom vision module (7), the front vision module (8), the left vision module (9) and the right vision module (10) is installed in the shell component (48).

10. A high speed screening machine according to claim 9, wherein: the shell component (48) is integrated with an interface component, a control button and a power connector which are connected to the PLC industrial personal computer (49);

and the shell assembly (48) is also provided with an air inlet pressure regulating valve group (50) communicated with the air storage tank (47).