CN114166762A

CN114166762A - PCB stripping detection device

Info

Publication number: CN114166762A
Application number: CN202111466969.4A
Authority: CN
Inventors: 倪明堂; 赵健州; 马兆领; 陆厚材; 陈观华
Original assignee: Guangdong Intelligent Robotics Institute; Guangdong Hust Industrial Technology Research Institute
Current assignee: Guangdong Intelligent Robotics Institute; Guangdong Hust Industrial Technology Research Institute
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-03-11

Abstract

The invention relates to a PCB stripping detection device which comprises a rack, and a storage mechanism, a feeding mechanism, a stripping mechanism and a detection mechanism which are arranged on the rack, wherein a PCB is stored in the storage mechanism, the feeding mechanism adsorbs the PCB from the storage mechanism, transfers the PCB to the stripping mechanism to strip a release film and then transfers the PCB to the detection mechanism for detection, the detection mechanism comprises a residue detection mechanism and an appearance detection mechanism, the residue detection mechanism detects whether the PCB is left with the release film, and the appearance detection mechanism detects the appearance of the PCB. Above-mentioned PCB board is shelled membrane detection device can peel off from the type membrane by full-automatic two sides to the PCB board, can carry out simultaneously to the PCB board from the type membrane and remain the detection, avoids peeling off incompletely from the type membrane, influences the subsequent handling, but also can carry out outward appearance to the PCB board and detect the dress mistake or the welding defect of PCB board, can repair the PCB board in advance, reduces the disability rate of PCB board.

Description

PCB stripping detection device

Technical Field

The invention relates to the technical field of circuit board film stripping, in particular to a PCB film stripping detection device.

Background

In the existing PCB processing and manufacturing process, the PCB needs to be subjected to over-etching treatment, but a release film is generally adhered to the surface of the PCB to protect the PCB, so that the release film on the surface of the PCB needs to be stripped before etching treatment, the existing stripping mode generally adopts manual stripping or machine stripping, the manual stripping efficiency of the prior stripping mode is low, and the surface of the PCB is easily damaged, so that the PCB generates defective products; the other peeling machine adopting machine peeling can only peel the release film on one side of the PCB once, and also can peel the release film on the other side of the PCB after the PCB is turned over, so that the process is long, the arrangement in a limited production space is not facilitated, and the peeling efficiency is low.

Disclosure of Invention

The invention mainly aims to provide a PCB stripping detection device, which solves the technical problem and can realize quick stripping of a release film.

In order to achieve the purpose, the invention adopts the following technical scheme:

a PCB film stripping detection device comprises a rack, and a storage mechanism, a feeding mechanism, a film stripping mechanism and a detection mechanism which are arranged on the rack, wherein a PCB is stored on the storage mechanism, the feeding mechanism adsorbs the PCB from the storage mechanism, transfers the PCB to the film stripping mechanism to strip a release film and then transfers the PCB to the detection mechanism for detection, the detection mechanism comprises a residue detection mechanism and an appearance detection mechanism, the residue detection mechanism detects whether the PCB is left with the release film, and the appearance detection mechanism detects the appearance of the PCB; the appearance detection mechanism is an AOI detection mechanism.

As a preferred technical scheme, the residue detection mechanism comprises two residue detection units and a detection moving unit, wherein the two residue detection units are arranged oppositely, and the detection moving unit transfers the PCB to a position between the two residue detection units.

As a preferred technical scheme, the residue detection assembly comprises a residue detection bracket and a color mark sensor, and the color mark sensor is arranged on the residue detection bracket.

As a preferred technical scheme, the film peeling mechanism comprises a peeling assembly and two adhesive tape winding assemblies, the adhesive tape winding assemblies unwind the adhesive tape to the peeling assembly, the PCB moves in the peeling assembly, and the adhesive tape peels off the release film.

As a preferable technical solution, the peeling assembly includes a pressure roller unit and a driving roller unit, and the pressure roller unit is disposed opposite to the driving roller unit.

As a preferred technical scheme, the compression roller unit comprises a compression roller, a compression roller moving seat and a compression roller cylinder, the compression roller is rotatably arranged on the compression roller moving seat, and the compression roller cylinder drives the compression roller moving seat to move.

As a preferable technical solution, the driving roller unit includes a plurality of driving rollers aligned with the pressure rollers and a driving roller motor for driving the driving rollers to rotate.

As an optimal technical scheme, the storage mechanism comprises a storage bracket, a pushing and lifting assembly and a storage fixing seat, the storage bracket is obliquely arranged on the rack through the storage fixing seat, and the pushing and lifting assembly drives and stores the PCB on the storage bracket in an upward lifting mode.

As an optimal technical scheme, the material storage support comprises a material storage base and an inclined baffle, the material storage base is perpendicular to the inclined baffle, and an included angle formed between the inclined baffle and the vertical direction is 3-10 degrees.

As a preferable technical solution, a transfer mechanism is further provided, and the transfer mechanism is provided between the film peeling mechanism and the detection mechanism.

The invention has the beneficial effects that: above-mentioned PCB board is shelled membrane detection device can peel off from the type membrane by full-automatic two sides to the PCB board, can carry out simultaneously to the PCB board from the type membrane and remain the detection, avoids peeling off incompletely from the type membrane, influences the subsequent handling, but also can carry out outward appearance to the PCB board and detect the dress mistake or the welding defect of PCB board, can repair the PCB board in advance, reduces the disability rate of PCB board.

Drawings

FIG. 1 is a schematic structural diagram of a PCB stripping detection device according to the present invention;

FIG. 2 is a schematic structural view of a storing mechanism according to the present invention;

FIG. 3 is a schematic structural view of a lift assembly according to the present invention;

FIG. 4 is a first schematic structural diagram of a feeding mechanism according to the present invention;

FIG. 5 is a second schematic structural view of a feeding mechanism according to the present invention;

FIG. 6 is a schematic structural view of a first transmission mechanism according to the present invention;

FIG. 7 is a schematic structural diagram of a film peeling mechanism according to the present invention;

FIG. 8 is a perspective cross-sectional view of a film stripping mechanism according to the present invention;

FIG. 9 is a schematic view of the position of the transfer mechanism and the second transport mechanism according to the present invention;

FIG. 10 is a schematic view of the transfer mechanism according to the present invention;

FIG. 11 is a schematic structural view of a second transfer mechanism according to the present invention;

FIG. 12 is a schematic view of the structure of a residue detection mechanism according to the present invention;

fig. 13 is a schematic structural view of an appearance detection mechanism according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

According to the figure 1, a PCB stripping detection device comprises a rack 1, a storage mechanism 2, a feeding mechanism 3, a first transmission mechanism 4, a stripping mechanism 5, a transfer mechanism 6, a second transmission mechanism 7, a third transmission mechanism 10 and a detection mechanism, wherein the storage mechanism 2, the feeding mechanism 3, the first transmission mechanism 4, the stripping mechanism 5, the transfer mechanism 6, the second transmission mechanism 7, the third transmission mechanism 10 and the detection mechanism are arranged on the rack 1, the detection mechanism comprises a residue detection mechanism 8 and an appearance detection mechanism 9, a PCB is stored on the storage mechanism 2, the feeding mechanism 3 adsorbs the PCB from the storage mechanism 2 and is placed on the first transmission mechanism 4, the PCB is transferred to the stripping mechanism 5 by the first transmission mechanism 4 and then is transferred to the second transmission mechanism 7, the PCB is moved to the detection mechanism by the second transmission mechanism 7 for detection, the residue detection mechanism 8 detects whether the PCB is left or not, and the appearance detection mechanism 9 detects the appearance of the PCB; when the PCB does not need to be detected, the transfer mechanism 6 adsorbs the PCB in the first transmission mechanism 7 and moves to the third transmission mechanism 10 to be stacked and placed, so that an operator can transfer the PCB conveniently or move the PCB to the next production process.

According to fig. 2 and 3, the storage mechanism 2 comprises a storage bracket 21, a pushing and lifting assembly 22 and a storage fixing seat 23, the storage bracket 21 is obliquely arranged on the rack 1 through the storage fixing seat 23, and the pushing and lifting assembly 22 drives the PCB board stored on the storage bracket 21 to be lifted upwards. The storage rack 21 comprises a storage base 211 and an inclined baffle 212, the storage base 212 is perpendicular to the inclined baffle 211, an included angle between the inclined baffle 211 and the vertical direction is 3-10 degrees, a PCB can be placed close to the inclined baffle 211, the PCB is kept to move at a specific position, the same loading position is kept when the PCB is moved by the loading mechanism 2, a plurality of guide grooves 213 are formed in the inclined baffle 212, the guide grooves 213 are matched with one corner of the PCB, one corner of the PCB placed in the storage rack 21 exceeds the moving direction of the PCB, and the film stripping mechanism 5 is convenient to strip the film. The pushing and lifting assembly 22 includes a pushing and lifting plate 221, a pushing and lifting base plate 222, a pushing and lifting motor 223, a pushing and lifting movable plate 224, a pushing and lifting guide rod 225, a pushing and lifting push rod 226, and a pushing and lifting screw 227, wherein two ends of the pushing and lifting guide rod 225 are respectively fixed to the pushing and lifting base plate 222 and the material storage base 211, two ends of the pushing and lifting push rod 226 are respectively fixed to the pushing and lifting plate 221 and the pushing and lifting movable plate 224 and penetrate through the material storage base 211, the pushing and lifting screw 227 is rotatably disposed between the pushing and lifting movable plate 221 and the pushing and lifting movable plate 224 and is engaged with the pushing and lifting movable plate 224, an end surface of the pushing and lifting plate 221 is matched with the inclined baffle 211 and can move along the inclined baffle 211, the pushing and lifting motor 223 drives the pushing and lifting screw 227 to rotate to drive the pushing and lifting movable plate 224 to move along the pushing and lifting guide rod 225, and the pushing and lifting plate 221 is lifted by the pushing and lifting push rod 226, so that the PCB plate moves.

As shown in fig. 4 and 5, the feeding mechanism 3 includes a feeding support 31, a feeding traversing assembly 32, a feeding longitudinal moving cylinder 33, a feeding fixing plate 34 and feeding adsorbers 35, the feeding traversing assembly 32 is disposed on the feeding support 31, the feeding adsorbers 35 are detachably disposed on the feeding fixing plate 34, so that the feeding adsorbers 35 can be disposed according to the size of the PCB and the number of the PCB to be fed at one time, the adaptability is strong, the flexibility is high, the feeding traversing assembly 32 drives the feeding longitudinal moving cylinder 33 to move, and the feeding longitudinal moving cylinder 33 drives the feeding fixing plate 34 to move, so that the feeding adsorbers 35 adsorb the PCB or place the PCB. The feeding traversing assembly 32 comprises a feeding traversing motor 321, a feeding traversing screw rod 322, a feeding traversing slider 333, a feeding traversing guide rail 334 and a feeding traversing seat 335, the feeding traversing guide rail 334 is fixedly arranged on the feeding bracket 31, the feeding traversing slider 333 moves along the feeding traversing guide rail 334, the feeding traversing seat 335 is fixedly arranged with the feeding traversing slider 333 and is meshed with the feeding traversing screw rod 322, the feeding traversing motor 321 drives the feeding traversing screw rod 322 to rotate and drives the feeding traversing seat 335 to move along the feeding traversing guide rail 334, so that the feeding absorber 35 moves between the storing mechanism 2 and the first transmission mechanism 4.

As shown in fig. 6, the first transmission mechanism 4 includes a first transmission support 41, a first driving roller 42, a first driven roller 43, a first transmission belt 44 and a first transmission motor 45, the first driving roller 42 and the first driven roller 43 are respectively disposed at two ends of the first transmission support 41, the first transmission belt 44 is driven between the first driving roller 42 and the first driven roller 43, and the first transmission motor 45 drives the first driving roller 42 to rotate so as to drive the first transmission belt 44 to transmit, so that the PCB board is driven.

As shown in fig. 7 and 8, the peeling mechanism 5 includes a peeling support 51, and a peeling assembly 52, a first adhesive tape winding assembly 53 and a second adhesive tape winding assembly 54 which are disposed on the peeling support 51, wherein the first adhesive tape winding assembly 53 and the second adhesive tape winding assembly 54 wind the adhesive tape to the peeling assembly 52, and the adhesive tape peels off the release film. The first tape winding assembly 53 and the second tape winding assembly 54 respectively transfer the tapes to the peeling assembly 52, the PCB board moves in the peeling assembly 52, and the tapes begin to adhere to the release film at the corners of the PCB board to separate the release film from the PCB board. The peeling assembly 52 includes a pressing roller unit 521 and a driving roller unit 522, the PCB board moves along between the pressing roller unit 521 and the driving roller unit 522, the driving roller unit 522 drives the PCB board to move, and the pressing roller unit 521 presses the adhesive tape onto the release film. The pressing roller unit 521 includes a plurality of pressing rollers 5213, a pressing roller moving seat 5212, a pressing roller cylinder 5211 and a cylinder proportional valve 5214, the pressing roller 5211 is rotatably disposed on the pressing roller moving seat 5212, the pressing roller cylinder 5212 drives the pressing roller moving seat 5212 to move, the driving roller unit 522 includes a plurality of driving rollers 5221 and a driving roller motor 5222, the driving roller 5221 is rotatably disposed on the stripping bracket 31, the driving rollers 5221 and the pressing rollers 5213 are disposed in one-to-one correspondence, and are abutted against each other, when stripping, the PCB moves between the driving roller 5221 and the pressing roller 5213, the driving roller motor 5222 drives the driving roller 5221 to rotate, and drives the pressing roller 5213 to rotate, so as to move the PCB, and the cylinder proportional valve 5214 is communicated with the pressing roller cylinder 5211 and is used for controlling the pressure of the pressing roller 5213 on the PCB to be kept constant. The first adhesive tape winding assembly 53 and the second adhesive tape winding assembly 54 have the same structural size, the first adhesive tape winding assembly 53 comprises an unwinding roller shaft 531, a winding roller shaft 5352 and a winding motor 533, the unwinding roller shaft 531 unwinds an adhesive tape, the end of the adhesive tape is connected with the winding roller shaft 5352 after the adhesive tape is wound by at least three pressing rollers 5213, the winding roller shaft 5352 is driven by the winding motor 533 to wind the adhesive tape, the second adhesive tape winding assembly 54 unwinds the adhesive tape, the adhesive tape is wound by at least three driving rollers 5221 and then wound, the adhesive tapes unwound by the first adhesive tape winding assembly 53 and the second adhesive tape winding assembly 54 are not in contact with each other, the adhesive tapes of the two adhesive tapes are prevented from influencing the peeling effect, the release films on the two sides of the PCB are separated from each other, and the success rate of peeling the release films is ensured.

Referring to fig. 9 and 10, the transfer mechanism 6 includes a transfer support 64, a transfer traverse unit 61, a transfer vertical unit 62, and a transfer suction unit 63, the transfer traverse unit 61 is disposed on the transfer support 64, the transfer traverse unit 61 drives the transfer vertical unit 62, the transfer vertical unit 62 drives the transfer suction unit 63, and the transfer suction unit 63 sucks or places the PCB. The transferring and traversing assembly 61 comprises a traversing linear motor stator 611, a traversing linear motor mover 612 and a traversing moving seat 613, the traversing linear motor stator 611 is fixed on the transferring bracket 64, the traversing linear motor mover 612 is fixed on the traversing moving seat 613, the transferring and longitudinally moving assembly 62 is fixed on the traversing moving seat 613, and the traversing linear motor mover 612 moves along the traversing linear motor stator 611 to move the transferring and longitudinally moving assembly 62. The transfer longitudinal moving assembly 62 comprises a longitudinal moving linear motor stator 621, a longitudinal moving linear motor rotor 622 and a longitudinal moving base 623, the longitudinal moving linear motor stator 621 is fixed on the transverse moving base 613, the longitudinal moving linear motor rotor 622 is fixedly connected with the longitudinal moving base 623, the transfer absorber 63 is detachable on the longitudinal moving base 623, the feeding absorber 63 can be arranged according to the size of a PCB and the number of fed materials at one time, and the longitudinal moving linear motor rotor 622 moves along the longitudinal moving linear motor stator 621 to move the transfer absorber 63.

Referring to fig. 9 and 11, the second transmission mechanism 7 includes a second transmission support 71, a second driving wheel 72, a second driven wheel 73, a second support plate 74, a second transmission belt 75, a second transmission motor 76 and a material blocking plate 77, the second driving wheel 72 and the second driven wheel 73 are rotatably disposed on the second transmission support 71, a plurality of second transmission belts 75 are disposed and are driven between the second driving wheel 72 and the second driven wheel 73 for driving the PCB to move, the second transmission belt 75 is a strip transmission belt 75 made of polyurethane and capable of increasing friction force with the PCB to prevent slipping during movement of the PCB and causing positional deviation of the PCB, the second transmission motor 76 drives the second driving wheel 72 to rotate to drive the second transmission belt 75 to move and the second driven wheel 73 to rotate, the second support plate 74 is disposed between the second driving wheel 72 and the second driven wheel 73, can support second conveyer belt 75, when preventing that the second conveyer belt 75 is arranged in to the PCB board, second conveyer belt 75 pressurized bending, the in-process PCB board position that leads to the conveying produces the skew, material baffle 77 sets up on second support 71, and be close to one side of transfer mechanism 6, transfer mechanism 6 adsorbs the PCB board in material baffle 77 of being convenient for, material baffle 77 also is equipped with the recess equally, the shape of this recess is the same with guide way 213, when can guaranteeing transfer mechanism 6 and adsorb the PCB board, the position of PCB board is unanimous, the PCB board of being convenient for piles up. When the PCB after membrane stripping needs to be detected, the material baffle plate 77 is detached to allow the PCB to pass through.

According to fig. 12, the residue detection mechanism 8 includes two residue detection units 81 and a first detection moving unit 82, the two residue detection units 81 are oppositely disposed and used for detecting two sides of the PCB after the film stripping is completed, whether the two sides of the PCB have the residue of the release film can be detected, and the first detection moving unit 82 transfers the PCB to between the two residue detection units 81. The first detection moving unit 82 has the same structural dimension as the second transmission mechanism 7, the residue detection assembly 81 comprises a residue detection bracket 811 and a color mark sensor 812, the color mark sensor 812 is arranged on the residue detection bracket 811, and the color mark sensor 812 is provided with a plurality of pieces and can adapt to PCBs with different sizes.

According to fig. 13, the appearance inspection mechanism 9 is an AOI inspection mechanism capable of inspecting a mounting error or a welding defect of a PCB by a camera, the appearance inspection mechanism 9 includes an appearance inspection unit 91 and a second inspection moving unit 92, the appearance inspection unit 91 is disposed at one end of the second inspection moving unit 92, and is close to the residue inspection mechanism 8, and is capable of inspecting a residue and inspecting an appearance simultaneously, the first inspection moving unit 82 moves the PCB after the residue inspection to the second inspection moving unit 92, the appearance inspection unit 91 performs appearance inspection on the PCB located at the second inspection moving unit 92, and thereby the repair cost of the PCB and the rejection rate of the PCB are reduced. The second detecting moving unit 92 has the same structural size as the first transmission mechanism 4, the appearance detecting unit 91 includes a linear camera 911 and an appearance detecting bracket 912, the linear camera 911 is disposed on the appearance detecting bracket 912, and the linear camera 911 is aligned with the second detecting moving unit 92.

The PCB inspection device is further provided with a blanking mechanism (not shown), the blanking mechanism is arranged above the second inspection moving unit 92 and is far away from one end of the residue inspection mechanism 8, and the PCB which is inspected can be blanked to the third transportation mechanism 10 to be stacked or transferred to the next process. The blanking mechanism and the transfer mechanism 6 have the same structure and size.

The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles of the invention described in the claims should be included in the claims.

Claims

1. A PCB film stripping detection device is characterized by comprising a rack, and a storage mechanism, a feeding mechanism, a film stripping mechanism and a detection mechanism which are arranged on the rack, wherein a PCB is stored on the storage mechanism, the feeding mechanism adsorbs the PCB from the storage mechanism, transfers the PCB to the film stripping mechanism after stripping a release film, and transfers the PCB to the detection mechanism for detection, the detection mechanism comprises a residue detection mechanism and an appearance detection mechanism, the residue detection mechanism detects whether the PCB is left by the release film, and the appearance detection mechanism detects the appearance of the PCB; the appearance detection mechanism is an AOI detection mechanism.

2. The PCB stripping detection device according to claim 1, wherein the residue detection mechanism comprises two residue detection units and a detection moving unit, the two residue detection units are arranged oppositely, and the detection moving unit moves the PCB between the two residue detection units.

3. The PCB stripping detection device of claim 2, wherein the residue detection assembly comprises a residue detection bracket and a color mark sensor, and the color mark sensor is arranged on the residue detection bracket.

4. The PCB stripping detection device of claim 2 or 3, wherein the stripping mechanism comprises a stripping assembly and two tape winding assemblies, the tape winding assemblies wind the tapes to the stripping assembly, the PCB moves in the stripping assembly, and the tapes strip the release film.

5. The PCB stripping detection device of claim 4, wherein the stripping assembly comprises a pressure roller unit and a driving roller unit, and the pressure roller unit is arranged opposite to the driving roller unit.

6. The PCB stripping detection device of claim 5, wherein the compression roller unit comprises a compression roller, a compression roller moving seat and a compression roller cylinder, the compression roller is rotatably arranged on the compression roller moving seat, and the compression roller cylinder drives the compression roller moving seat to move.

7. The PCB stripping detection device of claim 6, wherein the driving roller unit comprises a plurality of driving rollers and driving roller motors, the driving rollers are aligned with the compression rollers, and the driving roller motors drive the driving rollers to rotate.

8. The PCB stripping detection device according to claim 7, wherein the storage mechanism comprises a storage bracket, a pushing and lifting assembly and a storage fixing seat, the storage bracket is obliquely arranged on the rack through the storage fixing seat, and the pushing and lifting assembly drives the PCB stored on the storage bracket to be lifted upwards.

9. The PCB stripping detection device according to claim 8, wherein the storage rack comprises a storage base and an inclined baffle, the storage base is perpendicular to the inclined baffle, and an included angle between the inclined baffle and the vertical direction is 3-10 °.

10. The PCB stripping detection device of claim 9, further comprising a transfer mechanism, wherein the transfer mechanism is arranged between the stripping mechanism and the detection mechanism.