CN217790005U

CN217790005U - Positioning film tearing structure

Info

Publication number: CN217790005U
Application number: CN202221116065.9U
Authority: CN
Inventors: 高亚松; 张德勇
Original assignee: Dongguan Hongren Automation Equipment Technology Co ltd
Current assignee: Dongguan Hongren Automation Equipment Technology Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-11-11
Anticipated expiration: 2032-05-10

Abstract

The utility model relates to a positioning film tearing structure, which is connected on a frame, the front end of the frame is provided with a front conveying section for conveying a thin plate backwards, and the thin plate peels an upper film on the upper surface of a substrate through an upper film peeling module; the positioning film tearing structure is connected to the rear end of the upper film peeling module, the positioning film tearing structure comprises an upper positioning piece and a lower positioning piece, the upper positioning piece is provided with at least one first air blowing port, the lower positioning piece is connected to the lower portion of the upper positioning piece, a channel is arranged between the upper positioning piece and the lower positioning piece, the front end of a substrate penetrates into the channel, the first air blowing port blows forward, the upper film peeling module can be used for positioning the substrate to peel off the upper film of the thin plate smoothly when the upper film peeling module works simultaneously, and the substrate is conveyed backwards through a rear conveying section after passing through the channel.

Description

Positioning film tearing structure

Technical Field

The present invention relates to a film tearing structure, and more particularly to a film tearing structure capable of smoothly and comprehensively peeling off a film.

Background

In the manufacturing process of the printed circuit board, before the substrate is exposed, a photoresist layer and a film adhered to the surface of the photoresist layer are respectively formed on the upper surface and the lower surface of the substrate, and after the substrate is exposed, the film is stripped to expose the photoresist layer, so as to carry out the subsequent developing and etching processes. The conventional film peeling machine mainly conveys a thin plate such as the printed circuit board through a front conveying section to move along a conveying direction from front to back, the thin plate is stopped and positioned by a stopping unit, and then the thin plate is continuously conveyed backwards along a rear conveying section after being rolled on the surface of the thin film through a set of embossing wheels, and the thin film with a wrinkled front end edge is gradually peeled off through a set of sticking wheels.

By the structure of the film stripping machine, the efficiency of stripping the film can be improved really. In the process of peeling the film actually, the phenomenon of bending and unevenness is easy to occur due to the small thickness of the substrate, when the film is adhered by the long straight cylindrical adhesive wheel with the consistent outer diameter, the adhesive force of each adhering position is not completely the same, and the film cannot be peeled gradually smoothly and comprehensively; moreover, because the film is thin and fragile, after the film is peeled off, part of the film fragile sheet still adheres to the surface of the photoresist layer, and the area of the film fragile sheet is too small to be detected, and the phenomenon can cause the substrate to face the scrapped result in the whole manufacturing process of the printed circuit board. Therefore, at present, there are different types of film peeling devices to peel the front edge of the film, and then peel the film completely by a film peeling module, which is only suitable for a thin plate with a fixed thickness range during operation, but for a thin plate or a soft plate with a thickness below 0.1mm, even 0.04mm, in the actual film peeling process, because the film peeling module mainly pulls up the film in a direction perpendicular to the surface of the thin plate, the phenomenon of pulling or rolling up the whole thin plate at the same time is easily generated, so that the substrate is scrapped, the production efficiency is affected, and even the parts of the film peeling device are damaged.

Disclosure of Invention

In view of the above, in order to provide a structure different from the prior art and improve the above disadvantages, the inventor has developed the present invention through years of experience and continuous research and development.

The utility model discloses an aim at is carrying and is used for a location dyestripping structure, can solve current the membrane machine of shelling and peel off the in-process at the film of sheet metal or soft board, have the simultaneous pulling easily or roll up whole dull and stereotyped problem, and enable the film can smooth and easy and comprehensive with the base plate separation to improve the operation quality, increase the qualification rate, and effectively avoid damaging because of rolling up the produced parts of whole flat board, or scrap the material waste that causes because of the flat board.

For reaching above-mentioned utility model's purpose, this novel location dyestripping structure who establishes is connected in a frame, and the front end of frame has a preceding transport section for carry a sheet metal to make along by the front end towards the direction of delivery of rear end remove, through one on peel off the membrane module with a film strip back on one of the base plate upper surface of sheet metal, transport section backward transport behind a rethread, its main technical characterstic lies in: the positioning film tearing structure is connected to the rear end of the upper film peeling module and comprises an upper positioning piece and a lower positioning piece, wherein the upper positioning piece is provided with at least one first air blowing port, and the air blowing port is used for blowing air forwards; the lower positioning piece is connected below the upper positioning piece, a channel is arranged between the upper positioning piece and the lower positioning piece, and the channel is used for the substrate to pass through from the front end to the rear end.

When the air blowing device is implemented, the at least one first air blowing port is communicated with a channel between the upper positioning piece and the lower positioning piece, and the channel is used for blowing air forwards.

When the air blowing device is used, the lower positioning piece is provided with at least one second air blowing opening, and the air blowing opening is used for blowing air forwards.

When the positioning device is implemented, the upper positioning piece and the lower positioning piece are respectively flat plates which are symmetrical up and down, the front end of the upper positioning piece is provided with a first convex part, and the first convex part extends forwards from the rear end of the upper positioning piece to the front end; the front end of the lower positioning piece is provided with a second convex part which is vertically symmetrical with the first convex part, and the second convex part extends forwards from the rear end of the lower positioning piece towards the front end.

When the device is implemented, one side of the first convex part is provided with a first upper oblique edge, the other side of the first convex part is provided with a second upper oblique edge, and the first upper oblique edge and the second upper oblique edge respectively extend backwards at an angle; one side of the second convex part is provided with a first lower oblique edge, the other side of the second convex part is provided with a second lower oblique edge, and the first lower oblique edge and the second lower oblique edge respectively extend backwards at an angle.

When in implementation, the novel film peeling machine also comprises at least one front film peeling unit, wherein the front film peeling unit comprises an upper fulcrum shaft, an upper cantilever and a first driving piece, and the upper fulcrum shaft is connected to the rack; one end of the upper cantilever is pivoted with the upper shaft, the other end of the upper cantilever is provided with a lower hook part, and the lower hook part is downwards abutted against the upper surface of the substrate so as to strip the front end edge of the upper film; the lower end of the first driving piece is connected with the middle section of the upper cantilever, and the first driving piece is used for moving the lower hook part of the upper cantilever up and down.

During implementation, the novel air blowing device further comprises an upper air blowing unit, the upper air blowing unit is connected with the rack and located above the rear conveying section, and the upper air blowing unit is used for blowing air in a direction towards the lower hook part.

When in implementation, the novel bracket also comprises a lower support shaft, at least one lower cantilever and a second driving piece, wherein the lower support shaft is connected with the rack and correspondingly arranged below the upper support shaft; one end of the lower cantilever is pivoted with the lower fulcrum, the middle section of the lower cantilever is provided with a limiting part for positioning an elastic piece, the other end of the lower cantilever is provided with an upper hook part, and the upper hook part upwards supports against the lower surface of the substrate so as to peel the front end edge of a lower film on the lower surface of the substrate; the upper end of the second driving piece is provided with a pushing part which is connected with the elastic piece and used for pushing to move the upper hook part of the lower cantilever upwards.

During implementation, this novel unit of blowing that still includes down, the frame is connected to the unit of blowing down, and the unit of blowing down is located the below of back conveying section, and the unit of blowing down is used for blowing out the air towards the direction of going up the hook portion.

When the film stripping machine is used, the upper film stripping module is a transversely arranged cylinder, the upper film stripping module is positioned above the rear end of the front conveying section and parallel to the front end edge of the thin plate, a plurality of air suction holes are formed in the cylinder body of the upper film stripping module, and the air suction holes are used for adsorbing an upper film.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic perspective view of a rack mounted with a preferred embodiment of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view A-A' of FIG. 1;

FIG. 3 is a perspective view of a front film peeling unit according to a preferred embodiment of the present invention;

FIG. 4 is a schematic view of a front film peeling unit according to a preferred embodiment of the present invention;

fig. 5 is a perspective view of the upper positioning member and the lower positioning member of the preferred embodiment of the present invention;

FIG. 6 is an exploded perspective view of the upper positioning member and the lower positioning member according to the preferred embodiment of the present invention;

fig. 7 is a schematic view of the upper positioning element and the lower positioning element according to a preferred embodiment of the present invention.

Description of the reference numerals

1. Positioning a film tearing structure; 11. a frame; 12. a thin plate; 121. a substrate; 122. coating a thin film; 123. a lower film; 13. a front conveying section; 14. a rear conveying section; 2. a front film peeling unit; 21. an upper fulcrum; 22. an upper cantilever; 221. a lower hook part; 23. a first driving member; 24. an upper blowing unit; 25. a lower fulcrum; 26. a lower cantilever; 261. a limiting part; 262. an upper hook part; 27. a second driving member; 271. a pushing part; 28. a lower blowing unit; 29. an elastic member; 3. an upper positioning member; 31. a first convex portion; 32. a first upper beveled edge; 33. a second upper beveled edge; 34. a first blowoff port; 4. a lower positioning member; 41. a second convex portion; 42. a first lower sloping edge; 43. a second lower beveled edge; 44. a second air blowing port; 5. a channel; 9. a membrane upper stripping module; 91. a lower stripping module; 92. and (4) an air suction hole.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, other ways of implementing the invention may be devised different from those described herein, and it will be apparent to those skilled in the art that the invention can be practiced without departing from the spirit and scope of the invention.

As shown in FIG. 1, the utility model discloses a location dyestripping structure mainly includes one and goes up setting element and setting element once, and wherein last setting element has at least one first gas blowing mouth, and lower setting element is connected in the below of last setting element, and goes up and has a passageway between setting element and the lower setting element, and the front end of a base plate penetrates in the passageway with the location base plate, and a first gas blowing mouth blows forward, and after peeling off a last film on the base plate simultaneously on one, can let the base plate pass through the passageway, and the transport section is carried backward behind the rethread one.

Fig. 1 to 4 show a preferred embodiment of a positioning and tearing structure 1 of the present invention, which is used for connecting to a frame 11 and located at the rear end of an upper membrane peeling module 9 and a lower membrane peeling module 91. Wherein, one end of the input sheet 12 of the frame 11 is defined as the front end of the frame 11, one end of the output sheet 12 is defined as the rear end of the frame 11, the front end of the frame 11 has a front conveying section 13, the rear end of the frame 11 has a rear conveying section 14, the front conveying section 13 and the rear conveying section 14 are respectively composed of a plurality of rollers horizontally arranged at intervals and used for conveying the sheet 12 to move along the front end of the frame 11 towards the rear end. The upper film stripping module 9 and the lower film stripping module 91 are respectively transversely arranged cylinders, the upper film stripping module 9 is positioned above the rear end of the front conveying section 13 and parallel to the front end edge of the thin plate 12, a plurality of air suction holes 92 are formed in the cylinder body of the upper film stripping module 9, and one end of the upper film stripping module 9 is provided with an air blower communicated with the plurality of air suction holes 92, so that when the air blower sucks air, air outside the cylinder body of the upper film stripping module 9 can enter the cylinder body through the plurality of air suction holes 92, and a negative pressure state is formed to adsorb an upper film 122 on the upper surface of a substrate 121; the upper stripping module 9 and the lower stripping module 91 are vertically corresponding to each other and have the same structure, and the lower stripping module 91 can also absorb the lower film 123 on the lower surface of the substrate 121.

The utility model discloses a location dyestripping structure 1 mainly includes that a preceding film peels off unit 2, one goes up setting element 3 and setting element 4 once. The front film peeling unit 2 includes an upper support shaft 21, an upper cantilever 22, a first driving member 23, an upper blowing unit 24, a lower support shaft 25, a lower cantilever 26, a second driving member 27 and a lower blowing unit 28. In practice, the front film peeling unit 2 may be provided in plural, the plural front film peeling units 2 are arranged at intervals in the horizontal plane, and the arrangement direction of the plural front film peeling units 2 is perpendicular to the conveying direction of the sheet 12.

The upper fulcrum 21 is connected with the frame 11; one end of the upper cantilever 22 is pivoted with the upper shaft 21, the other end of the upper cantilever 22 is provided with a lower hook part 221, and a sharp corner of the lower hook part 221 protrudes downwards in a direction away from the upper cantilever 22; the first driving member 23 is a piston set, and the lower end of the first driving member 23 is connected to the middle position of the upper suspension arm 22, so that the lower hook part 221 of the upper suspension arm 22 can be moved up and down; and the upper air blowing unit 24 is connected with the frame 11, the upper air blowing unit 24 is positioned above the rear conveying section 14, and an air blowing opening of the upper air blowing unit 24 faces the direction of the lower hook part 221. Thus, when the lower hook 221 presses the upper surface of the substrate 121 downward, the sheet 12 moves backward, and the upper blowing unit 24 blows air toward the lower hook 221, the front edge of the upper film 122 can be peeled off.

The lower fulcrum 25 is connected with the frame 11 and correspondingly arranged below the upper fulcrum 21; one end of the lower cantilever 26 is pivotally connected to the lower fulcrum 25, the middle section of the lower cantilever 26 has a protrusion, the protrusion has a groove with an open bottom, the protrusion is a limiting portion 261 for positioning the top end of a compression spring, and the compression spring is an elastic member 29; the other end of the lower cantilever 26 has an upper hook 262, and a sharp corner of the upper hook 262 protrudes upward in a direction away from the lower cantilever 26; the second driving member 27 is a piston set, the upper end of the second driving member 27 has a pushing portion 271, the pushing portion 271 is connected to the bottom end of the elastic member 29, so as to push and move the upper hook 262 of the lower suspension arm 26; and the lower air blowing unit 28 is connected to the frame 11, the lower air blowing unit 28 is located below the rear conveying section 14, and an air blowing opening of the lower air blowing unit 28 faces the direction of the upper hook 262. Thus, when the sharp corners of the upper hooks 262 are pressed upward against the lower surface of the substrate 121 and the lower blowing unit 28 blows air toward the upper hooks 262, the front edge of the lower film 123 is peeled.

As shown in fig. 5 to 7, the upper positioning member 3 is a flat plate, a first protrusion 31 is disposed at a central position of a front end of the upper positioning member 3, and the first protrusion 31 extends forward from a rear end of the upper positioning member 3 toward the front end; one side of the first convex part 31 is provided with a first upper inclined edge 32, the other side of the first convex part 31 is provided with a second upper inclined edge 33, and the first upper inclined edge 32 and the second upper inclined edge 33 respectively extend backwards at an angle; the rear end of the bottom surface of the upper positioning member 3 is provided with a plurality of first air blowing openings 34 arranged at intervals, and one ends of the plurality of first air blowing openings 34 are connected with a blower to blow air forwards.

The upper positioning piece 3 and the lower positioning piece 4 are respectively flat plates which are symmetrical up and down, and a channel 5 is arranged between the bottom surface of the upper positioning piece 3 and the top surface of the lower positioning piece 4; the central position of the front end of the lower positioning piece 4 is provided with a second convex part 41, the first convex part 31 and the second convex part 41 are symmetrical up and down, and the second convex part 41 extends forwards from the rear end of the lower positioning piece 4 to the front end; one side of the second protrusion 41 has a first lower oblique edge 42, the other side of the second protrusion 41 has a second lower oblique edge 43, and the first lower oblique edge 42 and the second lower oblique edge 43 extend backwards at an angle; in addition, the rear end of the top surface of the lower positioning member 4 is provided with a plurality of second air blowing openings 44 which are arranged at intervals, and one ends of the plurality of second air blowing openings 44 are connected with a blower to blow air forwards.

Therefore, when the thin plate 12 is a flat plate such as a printed circuit board, it mainly includes a substrate 121, the upper surface of the substrate 121 has an upper film 122, and the lower surface of the substrate 121 has a lower film 123. A sheet 12 is fed from the front feeding stage 13 toward the rear feeding stage 14, and after the front end edge of the upper film 122 is peeled off by the sharp corners of the lower hooks 221 and the front end edge of the lower film 123 is peeled off by the sharp corners of the upper hooks 262, the sheet 12 continues to move backward. When the front end edge of the substrate 121 is inserted into the channel 5 between the first protrusion 31 and the second protrusion 41, and then inserted into the channel 5 between the first upper inclined edge 32, the second upper inclined edge 33, the first lower inclined edge 42, and the second lower inclined edge 43 progressively, the substrate 121 maintains the directional movement, even though the upper stripping module 9 and the lower stripping module 91 respectively form a negative pressure state to adsorb the upper film 122 and the lower film 123, the substrate 121 can still be output backwards through the rear conveying section 14 after passing through the channel 5. When the air in the channel 5 is blown from the rear end to the front end and passes through the gap between the upper thin film 122 and the substrate 121 and the gap between the substrate 121 and the lower thin film 123, respectively, the complete peeling of the upper thin film 122 and the lower thin film 123 is facilitated.

In conclusion, the utility model can respectively strip the front end edges of the upper film and the lower film through the lower hook part and the upper hook part, so as to be beneficial to the subsequent whole film stripping operation; the substrate can still be positioned in the channel to maintain directional movement when the upper film stripping module and the lower film stripping module are respectively adsorbed to roll up the upper film and the lower film through the positioning action of the upper positioning piece and the lower positioning piece, so that the front end edge of the whole thin plate is prevented from being rolled up; air can be blown between the upper film and the substrate and between the substrate and the lower film, so that the upper film and the lower film can be separated from the substrate more smoothly and comprehensively when the upper film stripping module and the lower film stripping module act simultaneously; moreover, because the two sides of the first convex part are provided with the first upper inclined edge and the second upper inclined edge, and the two sides of the second convex part are provided with the first lower inclined edge and the second lower inclined edge, the front end edge of the substrate can be gradually inserted into a channel between the upper positioning piece and the lower positioning piece, so that the positioning effect is ensured.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. The utility model provides a location dyestripping structure, it connects in a frame, and the front end of this frame has a preceding transport section, and this preceding transport section is used for carrying a sheet metal to make along removing by the direction of delivery of front end towards the rear end, peels off the membrane through one on with one of the base plate upper surface of this sheet metal after, and transport section backward is carried after the rethread one, and its characterized in that, this location dyestripping structure connects in this rear end of peeling off the membrane module, and this location dyestripping structure includes:

the upper positioning piece is provided with at least one first air blowing port used for blowing air forwards; and

and the lower positioning piece is connected below the upper positioning piece, a channel is arranged between the upper positioning piece and the lower positioning piece, and the channel is used for the substrate to pass through from the front end to the rear end.

2. The fixed tear film structure of claim 1, wherein the at least one first blowing port communicates with the passage between the upper and lower positioning members, the first blowing port being adapted to blow air forwardly.

3. The fixed tear film structure of claim 1, wherein the lower fixing member has at least one second blowing port for blowing air forward.

4. The film tearing structure according to claim 1, wherein the upper positioning member and the lower positioning member are respectively flat plates that are vertically symmetrical, and the front end of the upper positioning member has a first protrusion extending forward from the rear end of the upper positioning member toward the front end; the front end of the lower positioning piece is provided with a second convex part, the second convex part and the first convex part are vertically symmetrical, and the second convex part extends forwards from the rear end of the lower positioning piece to the front end.

5. The tacking tear film structure of claim 4, wherein one side of the first protrusion has a first upper oblique edge, the other side of the first protrusion has a second upper oblique edge, the first upper oblique edge and the second upper oblique edge respectively extending rearward at an angle; one side of the second convex part is provided with a first lower oblique edge, the other side of the second convex part is provided with a second lower oblique edge, and the first lower oblique edge and the second lower oblique edge respectively extend backwards at an angle.

6. The fixed-position film-stripping structure as claimed in claim 1, further comprising at least one front film-stripping unit, wherein the front film-stripping unit comprises an upper fulcrum, an upper cantilever and a first driving member, the upper fulcrum is connected to the frame; one end of the upper cantilever is pivoted with the upper shaft, the other end of the upper cantilever is provided with a lower hook part, and the lower hook part is downwards pressed against the upper surface of the substrate so as to strip the front end edge of the upper film; the lower end of the first driving piece is connected with the middle section of the upper cantilever and used for moving the lower hook part of the upper cantilever up and down.

7. The fixed film tearing structure of claim 6, further comprising an upper blowing unit connected to the frame and located above the rear conveying section, the upper blowing unit being configured to blow air in a direction toward the lower hook.

8. The film tearing structure according to claim 6 or 7, further comprising a lower support shaft, a lower suspension arm and a second driving member, wherein the lower support shaft is connected with the frame, and the lower support shaft is correspondingly disposed below the upper support shaft; one end of the lower cantilever is pivoted with the lower shaft, the middle section of the lower cantilever is provided with a limiting part which is used for positioning an elastic piece, the other end of the lower cantilever is provided with an upper hook part which upwards supports and presses the lower surface of the substrate, so that the front end edge of a lower film on the lower surface of the substrate is peeled; the upper end of the second driving piece is provided with a pushing part which is connected with the elastic piece and used for pushing to move the upper hook part of the lower cantilever upwards.

9. The fixed tear film structure of claim 8, further comprising a lower blowing unit connected to the frame, the lower blowing unit being located below the rear conveying section, the lower blowing unit being configured to blow air in a direction toward the upper hook.

10. The structure of claim 1, wherein the upper film stripping module is a transversely disposed cylinder, the upper film stripping module is positioned above the rear end of the front conveying section and parallel to the front end edge of the thin plate, and a plurality of air suction holes are formed in the cylinder body of the upper film stripping module and used for sucking the upper film.