CN217780328U

CN217780328U - Partial film peeling structure

Info

Publication number: CN217780328U
Application number: CN202221207590.1U
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: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-11-11
Anticipated expiration: 2032-05-19

Abstract

A partial film stripping structure comprises an upper bracket, wherein the upper bracket is connected to a rack, and the front end of the upper bracket is provided with a first detector for detecting a thin plate; the bottom of the upper bracket is provided with a plurality of upper friction blocks which are arranged in parallel at intervals, and the bottom of the rear end of any upper friction block is provided with a first arc convex part; the rear end of the upper bracket is connected with a first upper air blowing unit, and the first upper air blowing unit is positioned above the rear conveying section and blows air towards the direction below the first arc convex part; one end of a first driving piece is connected with the upper support and used for moving the upper friction blocks up and down, so that when a thin plate is conveyed backwards from a front conveying section through a rear conveying section, the first arc convex parts of the upper friction blocks can respectively downwards abut against the upper surface of the thin plate, and the front end edge of an upper thin film of the thin plate is upwards stripped.

Description

Partial film peeling structure

Technical Field

The present invention relates to a partial film peeling structure, and more particularly to a partial film peeling structure capable of smoothly and effectively peeling off the front edge of 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 procedures. The conventional way of peeling the film from the film peeling machine is to transport the thin plate such as the printed circuit board or the like through a front transport section, move the thin plate along the transport direction from front to back, position the thin plate by a blocking unit, roll the thin plate on the surface of the film through a set of embossing wheels, then transport the thin plate continuously along a back transport section to back, and peel off the film with wrinkles at the front edge gradually through a set of adhesive wheels.

By the structure of the film stripping machine, the efficiency of stripping the film can be improved really. However, in the actual process of peeling off the film, it is found that the substrate is not thick, and is prone to have a phenomenon of bending and unevenness, and when the long and straight cylindrical adhesive wheels with the same outer diameter adhere the film, the adhesive force at each adhering position is not completely the same, and the film cannot be peeled off gradually smoothly and comprehensively; moreover, since the film is thin and fragile, after the film is peeled off, a part of the film fragile piece still adheres to the surface of the photoresist layer, and the area of the film fragile piece is too small to be detected, which will cause the substrate to be scrapped in the whole manufacturing process of the printed circuit board.

SUMMERY OF THE UTILITY MODEL

Accordingly, an object of the present invention is to provide a structure different from the prior art to solve the above-mentioned drawbacks.

An object of the utility model is to provide a partial film peels off structure to can solve current the membrane machine of peeling off and peel off the in-process at the film, need through a set of knurling wheel after the roll extrusion on the film surface, produce wrinkled film with a set of glutinous wheel with the front end edge and progressively peel off again, and because the sticky power of each position of adhering the film of straight cylindric glutinous wheel is different, the problem that the front end edge of unable smooth and easy messenger's film peeled off. To reach the above utility model's purpose, the utility model discloses the partial film that establishes peel off the structure and connect in a frame, the front end of frame has a preceding transport section, supplies to carry a sheet metal messenger along by the front end towards the direction of delivery of rear end to remove, and the transport section is carried backward behind the rethread to peel off a film of going up of a base plate upper surface of sheet metal, its main technical characterstic lies in: the partial film peeling structure comprises an upper bracket, a plurality of upper friction blocks, a first detector, a first upper blowing unit and a first driving piece. The upper bracket is connected to the rack, and the front end of the upper bracket is provided with a first detector for detecting the thin plate; the bottom of the upper bracket is provided with a plurality of upper friction blocks which are arranged in parallel at intervals, the bottom of the rear end of any upper friction block is provided with a first arc convex part, and the bottom surface of the upper friction block extends upwards in the direction from the first arc convex part to the front end of the upper friction block; the first upper blowing unit is connected to the rear end of the upper bracket, is positioned above the rear conveying section and is used for blowing air in a direction facing to the lower part of the first arc-shaped convex part; the first driving piece is connected to the rack, and one end of the first driving piece is connected with the upper support and used for moving the upper friction blocks up and down.

When in use, the bottom surface of the upper bracket is provided with a first upper extending part and a second upper extending part, the rear ends of the upper friction blocks penetrate through a first supporting rod, one end of the first supporting rod is connected with the first upper extending part, and the other end of the first supporting rod is connected with the second upper extending part; the front ends of the upper friction blocks penetrate through a first pivot, one end of the first pivot is connected with the first upper extending part, and the other end of the first pivot is connected with the second upper extending part.

When the friction block fixing device is used, the rear ends of the upper friction blocks are provided with a through hole used for penetrating through the first supporting rod, an annular space is formed between the inner periphery of the through hole and the outer periphery of the first supporting rod and used for enabling the rear ends of the upper friction blocks to move up and down relative to the first supporting rod.

When the air blowing device is used, the first upper air blowing unit is provided with a first upper air blowing opening, and the first upper air blowing opening is positioned in the middle of the rear end of the upper bracket.

When in use, the utility model discloses still include the unit of blowing on the second, the front end of upper bracket is connected to the unit of blowing on the second to be located the top of preceding conveying section, be used for blowing out the air towards the direction of last clutch blocks below.

When in use, the utility model discloses still include a second detector, the second detector is located the rear end of upper bracket for detect the sheet metal.

When in implementation, the utility model also comprises a lower bracket, a first lower blowing unit and a second driving piece, wherein the lower bracket is connected on the frame, the top of the lower bracket is provided with a plurality of lower friction blocks which are arranged side by side at intervals, the bottom of the rear end of each lower friction block is provided with a second arc convex part, and the top surface of each lower friction block extends downwards in the direction of the front end of the corresponding lower friction block by the aid of the second arc convex part; the first lower blowing unit is connected with the rear end of the lower bracket, is positioned below the rear conveying section and is used for blowing air in a direction facing the upper part of the second arc-shaped convex part; the second driving piece is connected to the rack, and one end of the second driving piece is connected with the upper support and used for moving the lower friction blocks up and down.

When the device is implemented, the top surface of the lower bracket is provided with a first lower extending part and a second lower extending part, the rear ends of the lower friction blocks penetrate through a second supporting rod, one end of the second supporting rod is connected with the first lower extending part, and the other end of the second supporting rod is connected with the second lower extending part; the front ends of the lower friction blocks penetrate through a second pivot, one end of the second pivot is connected with the first lower extension part, and the other end of the second pivot is connected with the second lower extension part.

When the lower bracket is used, the first lower blowing unit is provided with a first lower blowing port which is positioned in the middle of the rear end of the lower bracket.

When in use, the utility model discloses still include the unit of blowing under the second, the unit of blowing is connected in the front end of lower carriage under the second to be located the below of preceding conveying section, be used for blowing out the air towards the direction of rubbing block top down.

The utility model has the advantages that:

the utility model discloses be equipped with an at least support on a frame, be equipped with the clutch blocks that a plurality of intervals parallel on the at least support, the arc convex part through the clutch blocks supports the surface of pressing the sheet metal, blows with the unit of blowing simultaneously to this structure of peeling off the film front end edge makes the front end edge of film can smoothly and effectual separation with the base plate, in order to do benefit to subsequent whole film and peel off the operation.

The utility model discloses can carry out the leading edge of film and peel off completely with subsequent film to through really effectual dividing worker, make the construction more specialized, and then promote the film and peel off the output quality of operation.

For further understanding of the present invention, the following preferred embodiments are provided in conjunction with the drawings and figures to explain the detailed construction of the invention and its achieved effect.

Drawings

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

fig. 2 is a perspective view of the upper bracket according to the preferred embodiment of the present invention;

fig. 3 is a perspective view of the lower frame according to the preferred embodiment of the present invention;

FIG. 4 is a sectional view of the preferred embodiment of the present invention;

FIG. 5 is a schematic view of the present invention in a preferred embodiment;

fig. 6 is a perspective view illustrating a use state of the preferred embodiment of the present invention.

Description of reference numerals:

1: a partial film take-off structure; 11: a frame; 12: a thin plate; 121: a substrate; 122: coating a film; 123: a lower film; 13: a front conveying section; 14: a rear conveying section; 2: an upper bracket; 21: a first upper extension; 22: a second upper extension; 23: a first detector; 24: a second detector; 25: a first upper blowing unit; 251: a first upper blowing port; 26: a second upper blowing unit; 261: a second upper blowing port; 3: an upper friction block; 31: a first arc protrusion; 32, 62: perforating; 321, 621: an annular space; 33, 63: positioning holes; 34: a first pivot; 35: a first support bar; 4: a first driving member; 41, 71: a piston group; 5: a lower bracket; 51: a first lower extension; 52: a second lower extension; 53: a first lower blowing unit; 531: a first lower blowing port; 54: a second lower blowing unit; 541: a second lower blowing port; 6: a lower friction block; 61: a second arc protrusion; 64: a second pivot; 65: a second support bar; 7: a second driving member.

Detailed Description

The utility model discloses a partial film stripping structure 1, which mainly comprises an upper bracket 2, wherein the upper bracket 2 is connected with a frame 11, and the front end of the upper bracket 2 is provided with a first detector 23 for detecting a thin plate 12; the bottom of the upper bracket 2 is provided with a plurality of upper friction blocks 3 which are arranged in parallel at intervals, and the bottom of the rear end of any upper friction block 3 is provided with a first arc convex part 31; the rear end of the upper bracket 2 is connected with a first upper air blowing unit 25, and the first upper air blowing unit 25 is positioned above the rear conveying section 14 so as to blow air in the direction below the first arc-shaped convex part 31; and a first driving member 4 is connected to the upper bracket 2 for moving the upper friction blocks 3 up and down, so that when a thin plate 12 is conveyed backwards from a front conveying section 13 through a rear conveying section 14, the first arc-shaped protrusions 31 of the upper friction blocks 3 can be respectively pressed downwards against the upper surface of the substrate 121, and the front end edge of an upper film 122 of the thin plate 12 can be smoothly and effectively peeled upwards.

Please refer to fig. 1-4, which are preferred embodiments of the partial film peeling structure 1 of the present invention, for peeling the front edge of at least one film of a thin plate 12 on a frame 11. 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 the sheet 12 is conveyed to move along the front end of the frame 11 towards the rear end. In this embodiment, the sheet 12 is preferably placed over a plurality of rollers of the front conveying section 13 in a direction rotated at an angle of 45 degrees for simultaneously peeling the front edge of at least one film and the adjacent other edge.

The partial film peeling structure 1 mainly comprises an upper support 2, a plurality of upper friction blocks 3, a first driving part 4, a lower support 5, a plurality of lower friction blocks 6 and a second driving part 7, wherein the upper support 2 is a rectangular flat plate, one end of the bottom surface of the upper support 2 in the length direction is provided with a rectangular plate extending downwards, the rectangular plate is used as a first upper extending part 21, the other end of the bottom surface of the upper support 2 in the length direction is provided with another rectangular plate extending downwards, the other rectangular plate is used as a second upper extending part 22, and the first upper extending part 21 and the second upper extending part 22 are parallel to each other.

The plurality of upper friction blocks 3 are made of rubber or plastic, and the plurality of upper friction blocks 3 are arranged on the same horizontal plane at intervals in the transverse direction, and the arrangement direction of the plurality of upper friction blocks 3 is perpendicular to the conveying direction of the thin plate 12. The bottom of the rear end of any upper friction block 3 is provided with a first arc convex part 31, and the bottom surface of the upper friction block 3 extends upwards in the direction that the first arc convex part 31 faces the front end of the upper friction block 3, so that the bottom surface of the upper friction block 3 and the plate surface of the thin plate 12 form an acute angle with the front end opened. The rear end of the upper friction block 3 is provided with a through hole 32, and the front end of the upper friction block 3 is provided with a positioning hole 33. One end of a shaft rod is connected with the first upper extension part 21, the other end of the shaft rod is connected with the second upper extension part 22, the shaft rod continuously penetrates through the positioning holes 33 at the front ends of the upper friction blocks 3, and the shaft rod is used as a first pivot 34. One end of a round rod is connected with the first upper extending part 21, the other end of the round rod is connected with the second upper extending part 22, the round rod continuously penetrates through the through holes 32 at the rear ends of the upper friction blocks 3, so that an annular space 321 is formed between the inner periphery of the through holes 32 and the outer periphery of the round rod, the rear ends of the upper friction blocks 3 take the first pivot 34 as an axis and move up and down relative to the round rod, and the round rod is used as a first support rod 35.

The front end of the upper frame 2 is provided with a first detector 23 for detecting the position of the moving sheet 12 of the front conveying section 13 downward; the rear end of the upper frame 2 has a second detector 24 for detecting the position of the moving sheet 12 downward. The middle position of the rear end of the upper bracket 2 is provided with a first upper air blowing unit 25, the first upper air blowing unit 25 is positioned above the rear conveying section 14, the bottom end of the first upper air blowing unit 25 is provided with a first upper air blowing port 251, and the top end of the first upper air blowing unit 25 is communicated with an air blower, so that air is blown forwards towards the oblique lower part of the first arc convex part 31 of the upper friction block 3 at the middle position of the plurality of upper friction blocks 3. The middle position of the front end of the upper bracket 2 is provided with a second upper air blowing unit 26, the second upper air blowing unit 26 is positioned above the front conveying section 13, the bottom end of the second upper air blowing unit 26 is provided with a second upper air blowing port 261, and the top end of the second upper air blowing unit 26 is communicated with the air blower, so that air is blown back towards the oblique lower part of the upper friction blocks 3 at the middle position of the plurality of upper friction blocks 3.

The first driving member 4 includes two piston sets 41, the two piston sets 41 are respectively connected to the frame 11, and bottom ends of the two piston sets 41 are respectively connected to two ends of the upper bracket 2 in the longitudinal direction, and are configured to move the upper bracket 2 and the plurality of upper friction blocks 3 up and down simultaneously.

The lower frame 5 is a rectangular flat plate, the lower frame 5 is correspondingly arranged below the upper frame 2, one end of the top surface of the lower frame 5 in the length direction is provided with a rectangular plate extending upwards as a first lower extending part 51, the other end of the bottom surface of the lower frame 5 in the length direction is provided with another rectangular plate extending upwards as a second lower extending part 52, and the first lower extending part 51 and the second lower extending part 52 are parallel to each other.

The lower friction blocks 6 are made of a material such as rubber or plastic, and the lower friction blocks 6 are disposed below the upper friction blocks 3 in a reverse direction. The top of the rear end of any lower friction block 6 is provided with a second arc convex part 61, and the top surface of the lower friction block 6 extends downwards in the direction that the second arc convex part 61 faces the front end of the lower friction block 6, so that the top surface of the lower friction block 6 and the plate surface of the thin plate 12 form an acute angle with the front end opened. The lower friction block 6 has a through hole 62 at the rear end thereof, and a positioning hole 63 at the front end thereof. One end of a shaft rod is connected to the first lower extension 51, the other end of the shaft rod is connected to the second lower extension 52, and the shaft rod continuously penetrates through the positioning holes 63 at the front ends of the plurality of lower friction blocks 6 and serves as a second pivot 64. One end of a round rod is connected with the first lower extension part 51, the other end of the round rod is connected with the second lower extension part 52, the round rod continuously penetrates through the through holes 62 at the rear ends of the lower friction blocks 6, so that an annular space 621 is formed between the inner periphery of the through holes 62 and the outer periphery of the round rod, the rear ends of the lower friction blocks 6 take the second pivot 64 as an axis and move up and down relative to the round rod, and the round rod is used as a second support rod 65.

The lower frame 5 has a first lower air blowing unit 53 at a middle position of a rear end thereof, the first lower air blowing unit 53 is located below the rear conveying section 14, a first lower air blowing port 531 is formed at a top end of the first lower air blowing unit 53, and a bottom end of the first lower air blowing unit 53 is connected to the air blower to blow air forward toward an obliquely upper side of the second arc protrusion 61 of the lower friction block 6 at the middle position of the plurality of lower friction blocks 6. The middle position of the front end of the lower bracket 5 is provided with a second lower air blowing unit 54, the second lower air blowing unit 54 is positioned below the front conveying section 14, the top end of the second lower air blowing unit 54 is provided with a second lower air blowing port 541, and the bottom end of the second lower air blowing unit 54 is communicated with the air blower, so that air is blown back towards the obliquely upper side of the lower friction blocks 6 at the middle position of the plurality of lower friction blocks 6.

The second driving member 7 includes two piston sets 71, the two piston sets 71 are respectively connected to the frame 11, and top ends of the two piston sets 71 are respectively connected to two ends of the lower frame 5 in the longitudinal direction, so as to move the lower frame 5 and the plurality of lower friction blocks 6 up and down simultaneously.

Thus, as shown in fig. 5 and 6, when the thin plate 12 is a flat plate such as a printed circuit board, the thin plate 12 mainly includes a substrate 121, an upper film 122 is disposed on an upper surface of the substrate 121, and a lower film 123 is disposed on a lower surface of the substrate 121. When a thin plate 12 rotates by an angle of 45 degrees to be placed above the rollers of the front conveying section 13 and is conveyed backwards from the front conveying section 13 to the rear conveying section 14, the first driving member 4 and the second driving member 7 can simultaneously act through the detection of the corner of the thin plate 12 by the first detector 23, so that the upper bracket 2 moves downwards and the lower bracket 5 moves upwards, the first arc convex parts 31 of the upper friction blocks 3 at the middle positions of the upper friction blocks 3 can be downwards pressed against the upper surface of the thin plate 12, the second arc convex parts 61 of the lower friction blocks 6 at the middle positions of the lower friction blocks 6 can be upwards pressed against the lower surface of the thin plate 12, and the first upper air blowing unit 25 and the first lower air blowing unit 53 respectively blow air. And when the sheet 12 continues to move backwards, the plurality of upper friction blocks 3 and the plurality of lower friction blocks 6 are pressed one by one, and the front end edge and the adjacent other side edge of the upper film 122 and the lower film 123 are respectively peeled off through the friction resistance between each first arc-shaped protrusion 31 and the upper film 122 and the friction resistance between each second arc-shaped protrusion 61 and the lower film 123.

When the second detector 24 detects the corner of the thin sheet 12, which indicates that the partial peeling operation is completed, the upper frame 2 moves upward and the lower frame 5 moves downward by the simultaneous operation of the first driving member 4 and the second driving member 7, and the second upper blowing unit 26 and the second lower blowing unit 54 respectively blow air backward, so that the original peeled portions of the upper film 122 and the lower film 123 are again attached to the substrate 121.

To sum up, the utility model discloses be equipped with an at least support on a frame 11 to be equipped with the clutch blocks that a plurality of intervals parallel on at least one support, through the detection of first detector 23 and the simultaneous action of first driving piece 4, second driving piece 7, make the arc convex part of clutch blocks support the surface of pressing sheet metal 12, blow with the unit of blowing simultaneously, can peel off the leading edge of an at least film. For the curved and uneven thin plate 12, the force for lifting the front end edge of the thin film can be generated through a plurality of friction blocks arranged at intervals, so that the front end edge of the thin film can be smoothly and effectively and completely peeled off; the air is blown back through the detection of the second detector and the air blowing units, so that the original peeled portion of the upper film 122 and the lower film 123 is flatly adhered to the substrate 121, which is beneficial to the subsequent peeling operation of the whole film.

Although the present invention has been described with reference to specific preferred embodiments for achieving the above objects, it is not intended to limit the present invention to the specific features of the present invention, and it should be understood by those skilled in the art that any changes or modifications that can be easily conceived are possible and covered by the claims of the present invention.

Claims

1. A partial film peeling structure, which is connected to a frame, the frame having a front conveying section at a front end thereof for conveying a sheet so as to move in a conveying direction from the front end toward a rear end, and then being conveyed backward by a rear conveying section to peel an upper film from an upper surface of a substrate of the sheet, the partial film peeling structure comprising:

an upper bracket, the front end of which is provided with a first detector for detecting the thin plate; the bottom of the upper bracket is provided with a plurality of upper friction blocks which are arranged in parallel at intervals, the bottom of the rear end of each upper friction block is provided with a first arc-shaped convex part, and the bottom surface of each upper friction block extends upwards in the direction of the first arc-shaped convex part towards the front end of the upper friction block;

the first upper air blowing unit is connected to the rear end of the upper bracket and positioned above the rear conveying section, and blows air in a direction facing to the lower part of the first arc-shaped convex part; and

and the first driving piece is connected to the rack, and one end of the first driving piece is connected with the upper bracket and used for moving the upper friction blocks up and down.

2. The partial film peeling structure of claim 1, wherein the bottom surface of the upper frame has a first upper extension and a second upper extension, the rear ends of the upper friction blocks extend through a first supporting rod, one end of the first supporting rod is connected to the first upper extension, and the other end of the first supporting rod is connected to the second upper extension; the front ends of the upper friction blocks penetrate through a first pivot, one end of the first pivot is connected with the first upper extending part, and the other end of the first pivot is connected with the second upper extending part.

3. The partial film peeling structure of claim 2, wherein the rear ends of the upper rubbing blocks have a through hole for penetrating the first bar, and an annular space for the rear ends of the upper rubbing blocks to move up and down relative to the first bar is provided between the inner periphery of the through hole and the outer periphery of the first bar.

4. The partial film peeling structure of claim 1, wherein the first upper blowing unit has a first upper blowing port, and the first upper blowing port is located at a middle position of the rear end of the upper holder.

5. The partial film peeling structure of claim 1, further comprising a second upper blowing unit connected to a front end of the upper frame and located above the front feeding section, the second upper blowing unit blowing air in a direction toward below the upper rubbing block.

6. The partial film peeling structure of claim 1, further comprising a second detector for detecting the sheet, the second detector being located at a rear end of the upper holder.

7. The partial film peeling structure of any one of claims 1 to 6, further comprising a lower frame, a first lower blowing unit and a second driving member, wherein the lower frame is connected to the frame, a plurality of lower friction blocks are arranged at intervals and side by side on the top of the lower frame, the bottom of the rear end of each lower friction block is provided with a second arc-shaped protrusion, and the top surface of each lower friction block extends downwards in a direction towards the front end of the corresponding lower friction block by the second arc-shaped protrusion; the first lower blowing unit is connected with the rear end of the lower bracket and is positioned below the rear conveying section, and the first lower blowing unit blows air in a direction towards the upper part of the second arc-shaped convex part; the second driving piece is connected to the rack, and one end of the second driving piece is connected to the lower support and used for moving the lower friction blocks up and down.

8. The partial film peeling structure of claim 7, wherein the top surface of the lower frame has a first lower extension and a second lower extension, the rear ends of the plurality of lower rubbing blocks extend through a second bar, one end of the second bar is connected to the first lower extension, and the other end of the second bar is connected to the second lower extension; the front ends of the lower friction blocks penetrate through a second pivot, one end of the second pivot is connected with the first lower extending part, and the other end of the second pivot is connected with the second lower extending part.

9. The partial film peeling structure of claim 7, wherein the first lower blowing unit has a first lower blowing port located at a middle position of the rear end of the lower holder.

10. The partial film peeling structure of claim 7, further comprising a second lower air blowing unit connected to a front end of the lower frame and located below the front feeding section, the second lower air blowing unit blowing air in a direction toward above the lower rubbing block.