TWM630436U - Positioning film peeling structure - Google Patents

Abstract

A positioning and tearing film structure is connected to a frame, the front end of the frame has a front conveying section to convey a thin plate backward, and the thin plate is then peeled off an upper film on the upper surface of a substrate through an upper film stripping module. The positioning and tearing film structure is connected to the rear end of the upper film stripping module. The positioning and tearing film structure includes an upper positioning member and a lower positioning member. The upper positioning member has at least one first blowing port, and the lower positioning member is connected to the upper positioning member. Below, and between the upper positioning member and the lower positioning member, there is a channel, so that the front end of a substrate penetrates into the channel, the first air blowing port blows air forward, and the substrate can be positioned when the upper film stripping module operates at the same time The film on the sheet is peeled off smoothly, and after the substrate passes through the channel, it is conveyed backward through a rear conveying section.

Description

Positioning tear film structure

This creation is related to a positioning and tearing film structure, especially one that can peel off the film smoothly and comprehensively.

In the manufacturing process of printed circuit boards, before the substrate is exposed, a photoresist layer and a film adhered to the surface of the photoresist layer are formed on the upper and lower surfaces of the substrate, respectively. After exposure, the film is peeled off to make the photoresist layer. The layers are exposed for subsequent development and etching procedures. However, the existing method of peeling the film by the peeling machine mainly uses a front conveying section to convey the above-mentioned sheets such as printed circuit boards, so as to move along the conveying direction from front to back, and the sheets are blocked and positioned by a blocking unit. After rolling on the surface of the film through a set of embossing wheels, the sheet will continue to be conveyed backward along a rear conveying section, and a set of sticky wheels will gradually peel off the wrinkled film at the front edge.

With the above-mentioned structure of the peeling machine, the efficiency of peeling the film can indeed be improved. However, in the actual process of peeling off the film, it is found that because the thickness of the substrate itself is not large, it is easy to bend unevenly. When the long straight cylindrical adhesive wheel with the same outer diameter adheres the film, the adhesive force of each adhesive position will not be completely. Similarly, it is often impossible to gradually peel off the film smoothly and comprehensively; and because the thickness of the film is very thin and fragile, after the film is peeled off, some film chips will still adhere to the surface of the photoresist layer, and often due to the thin film The area of the chip is too small to be detected, and this phenomenon will result in the substrate being scrapped throughout the PCB manufacturing process. Therefore, at present, different models are used to peel off the front edge of the film separately, and then the film is completely peeled off through a film peeling module, but it can only be applied to the thin plate with a fixed thickness range during operation, but for the thickness of 0.1mm or less, even for 0.04mm thin or flexible boards, during the actual film peeling process, since the peeling module mainly pulls the film in the direction perpendicular to the surface of the thin board, it is easy to pull the film at the same time. Or the phenomenon of rolling up the entire sheet occurs, which makes the substrate scrapped, affects the production efficiency, and even damages the parts of the peeling machine.

In view of this, in order to provide a structure that is different from the conventional technology and improve the above-mentioned shortcomings, the creator has accumulated many years of experience and continuous research and development improvement, so this creation came into being.

One of the purposes of this creation is to provide a positioning and tearing film structure, so as to solve the problem that the conventional film peeling machine is prone to pulling or rolling up the entire flat plate at the same time during the film peeling process of the thin plate or flexible plate, so that the film can be easily pulled or rolled up. It can be separated from the substrate smoothly and comprehensively, so as to improve the operation quality, increase the yield, and effectively avoid the damage to the parts caused by rolling up the entire plate, or the waste of materials caused by the scrapping of the plate.

In order to achieve the purpose of the above creation, the positioning and tearing film structure set up in this creation is connected to a frame, and the front end of the frame has a front conveying section for conveying a sheet to move along the conveying direction from the front end to the rear end. , after peeling off an upper film on the upper surface of a substrate of the sheet through an upper peeling film module, and then conveying it backward through a rear conveying section, its main technical feature is: the positioning and tearing film structure is connected to the upper peeling film module. The positioning and tearing film structure includes an upper positioning piece and a lower positioning piece, wherein the upper positioning piece has at least one first blowing port for forward blowing; and the lower positioning piece is connected below the upper positioning piece, and the upper positioning piece There is a channel between the component and the lower positioning component, for the substrate to pass from the front end to the rear end.

During implementation, at least one first air blowing port is connected to the channel between the upper positioning piece and the lower positioning piece for forward blowing.

During implementation, the lower positioning member has at least one second air blowing port for blowing air forward.

During implementation, the upper positioning member and the lower positioning member are respectively upper and lower symmetrical flat plates, the front end of the upper positioning member has a first convex portion, and the first convex portion extends forward from the rear end of the upper positioning member toward the front end; the lower positioning member The front end has a second protruding portion, the second protruding portion is symmetrical with the first protruding portion, and the second protruding portion extends forward from the rear end of the lower positioning member toward the front end.

During implementation, one side of the first convex portion has a first upper oblique edge, the other side of the first convex portion has a second upper oblique edge, and the first upper oblique edge and the second upper oblique edge are respectively backward at an angle. extension; one side of the second convex portion has a first lower hypotenuse, the other side of the second convex portion has a second lower hypotenuse, the first lower hypotenuse and the second lower hypotenuse respectively extend backward at an angle .

During implementation, the present invention further includes at least one front film peeling unit, the front film peeling unit includes an upper support shaft, an upper cantilever and a first driving member, the upper support shaft is connected to the frame; one end of the upper cantilever is pivotally connected to the The support shaft, the other end of the upper cantilever has a lower hook, and the lower hook presses down on the upper surface of the substrate, so as to peel off the front edge of the upper film; Lower hook of the cantilever.

During implementation, the present invention further includes an upper air blowing unit, the upper air blowing unit is connected to the rack, and the upper air blowing unit is located above the rear conveying section for blowing air toward the lower hook portion.

During implementation, this creation further includes a lower support shaft, at least a lower cantilever and a second driving member. The lower support shaft is connected to the frame and is correspondingly arranged below the upper support shaft; one end of the lower cantilever is pivotally connected to the lower support shaft, and the lower cantilever There is a limit part in the middle position for positioning an elastic piece, the other end of the lower cantilever has an upper hook part, the upper hook part presses up against the lower surface of the substrate, so as to peel off the front edge of a lower film on the lower surface of the substrate; The upper ends of the two driving members are provided with a pushing portion, and the pushing portion is connected with the elastic member for pushing to move the upper hook portion of the lower cantilever upwardly.

When implemented, this creation further includes a lower air blowing unit, the lower air blowing unit is connected to the rack, and the lower air blowing unit is located below the rear conveying section for blowing air toward the upper hook portion.

During implementation, the upper film stripping module is a horizontally arranged cylinder, the upper film stripping module is positioned above the rear end of the front conveying section and is parallel to the front edge of the sheet, and the cylinder body of the upper film stripping module has a plurality of suction Air holes for adsorption of the upper film.

In order to facilitate a deeper understanding of this creation, it is detailed below:

The positioning and tearing film structure of the present invention mainly includes an upper positioning member and a lower positioning member, wherein the upper positioning member has at least one first blowing port, the lower positioning member is connected below the upper positioning member, and the upper positioning member and the lower positioning member There is a channel in between, so that a front end of the substrate penetrates into the channel to locate the substrate, a first air blowing port blows air forward, and an upper film stripping module simultaneously peels off an upper film on the substrate, so that the substrate can be Through the channel, it is transported backward through a rear transport section.

Please refer to FIG. 1 to FIG. 4 , which are a preferred embodiment of the positioning and tearing film structure 1 created for the purpose of being connected to a frame 11 and located on an upper peeling film module 9 and a lower film peeling module 91 back end. Wherein, one end of the input sheet 12 of the rack 11 is defined as the front end of the rack 11, one end of the output sheet 12 is defined as the rear end of the rack 11, the front end of the rack 11 has a front conveying section 13, and the rear end of the rack 11 has a The rear conveying section 14 , the front conveying section 13 and the rear conveying section 14 are respectively composed of a plurality of horizontally spaced rollers for conveying the sheet 12 to move along the direction from the front end of the frame 11 to the rear end. The upper stripping module 9 and the lower stripping module 91 are respectively horizontally arranged cylinders. The upper stripping module 9 is positioned above the rear end of the front conveying section 13 and is parallel to the front edge of the sheet 12. The upper stripping module 9 The cylinder body has a plurality of suction holes 92, and one end of the upper film stripping module 9 has a blower connected to the plurality of suction holes 92, so that when the blower sucks in, the cylinder of the upper film stripping module 9 is The air outside the body can enter the inside of the barrel through a plurality of suction holes 92 to form a negative pressure state to absorb an upper film 122 on the upper surface of a substrate 121; Correspondingly, and having the same structure, a lower film 123 on the lower surface of the substrate 121 can also be adsorbed through the lower film stripping module 91 .

The positioning and tearing film structure 1 of the present invention mainly includes a front film peeling unit 2 , an upper positioning member 3 and a lower positioning member 4 . The previous 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 supporting shaft 25, a lower cantilever 26, a second driving member 27 and a lower blowing member Air unit 28. During implementation, the front film peeling unit 2 can also be provided with a plurality of, the plurality of front film peeling units 2 are arranged at intervals on the same horizontal plane, and the arrangement direction of the plurality of front film peeling units 2 is perpendicular to the conveying direction of the sheet 12 .

The upper support shaft 21 is connected to the frame 11 ; one end of the upper cantilever 22 is pivotally connected to the upper support shaft 21 , the other end of the upper cantilever 22 has a lower hook 221 , and a sharp corner of the lower hook 221 is downward in a direction away from the upper cantilever 22 . The first driving member 23 is a piston group, the lower end of the first driving member 23 is connected to the middle position of the upper cantilever 22, and the lower hook portion 221 of the upper cantilever 22 is moved up and down by moving up and down; and the upper air blowing unit 24 is connected In the frame 11 , the upper air blowing unit 24 is located above the rear conveying section 14 , and the air blowing port of the upper air blowing unit 24 faces the direction of the lower hook portion 221 . Thereby, when the lower hook portion 221 presses down on the upper surface of the substrate 121 , the sheet 12 moves backward, and the upper air blowing unit 24 blows air toward the lower hook portion 221 , the front edge of the upper film 122 can be peeled off.

The lower support shaft 25 is connected to the frame 11 and is correspondingly arranged below the upper support shaft 21; one end of the lower cantilever arm 26 is pivotally connected to the lower support shaft 25, and a middle position of the lower cantilever arm 26 has a convex block, and the convex block has one of which is open at the bottom The groove, the bump is used as the limiting part 261 for positioning the top end of a compression spring, the compression spring is used as the elastic member 29; the other end of the lower cantilever 26 has an upper hook part 262, a tip of the upper hook part 262 The angle protrudes upward in a direction away from the lower cantilever arm 26; the second driving member 27 is a piston group, and the upper end of the second driving member 27 has a pushing portion 271, and the pushing portion 271 is connected upward to the bottom end of the elastic member 29, thereby Push up and move the upper hook 262 of the lower cantilever 26; the lower blowing unit 28 is connected to the frame 11, the lower blowing unit 28 is located below the rear conveying section 14, and the blowing port of the lower blowing unit 28 faces toward upward in the direction of the hook portion 262 . Therefore, when the sharp corner of the upper hook portion 262 presses upward against the lower surface of the substrate 121 and the lower air blowing unit 28 blows air toward the upper hook portion 262 , the front edge of the lower film 123 can be peeled off.

As shown in FIG. 5 to FIG. 7 , the upper positioning member 3 is a flat plate, and the upper positioning member 3 has a first convex portion 31 at the center of the front end. The first convex portion 31 extends from the rear end of the upper positioning member 3 toward the front end Front extension; one side of the first convex portion 31 has a first upper bevel 32, the other side of the first convex portion 31 has a second upper bevel 33, the first upper bevel 32 and the second upper bevel 33 respectively extend backward at an angle; the rear end of the bottom surface of the upper positioning member 3 has a plurality of first air blowing ports 34 arranged at intervals, and one end of the plurality of first air blowing ports 34 is connected to a blower to blow air forward.

The upper positioning member 3 and the lower positioning member 4 are respectively upper and lower symmetrical flat plates, and there is a channel 5 between the bottom surface of the upper positioning member 3 and the top surface of the lower positioning member 4; Two protruding parts 41, the first protruding part 31 and the second protruding part 41 are symmetrical up and down, the second protruding part 41 extends forward from the rear end of the lower positioning member 4 towards the front end; one side of the second protruding part 41 There is a first lower hypotenuse 42, the other side of the second convex portion 41 has a second lower hypotenuse 43, the first lower hypotenuse 42 and the second lower hypotenuse 43 respectively extend backward at an angle; The rear end of the top surface of the positioning member 4 has a plurality of second air blowing ports 44 arranged at intervals, and one end of the plurality of second air blowing ports 44 is connected to a blower to blow air forward.

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 transported backward from the front conveying section 13 to the rear conveying section 14. After peeling off the front edge of the upper film 122 through the sharp corners of the lower hook portion 221, and at the same time peeling off the front edge of the lower film 123 through the sharp corners of the upper hook portion 262, The sheet 12 will continue to move backwards. When the front edge of the substrate 121 is first inserted into the channel 5 between the first convex portion 31 and the second convex portion 41 , and then progressively inserted into the first upper bevel 32 , the second upper bevel 33 and the first lower bevel 42 , When the channel 5 between the second lower hypotenuse 43, the substrate 121 maintains the directional movement, even if the upper film stripping module 9 and the lower film stripping module 91 respectively form a negative pressure state to adsorb the upper film 122 and the lower film 123, It is still possible to allow the substrate 121 to be output backward 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 film 122 and the substrate 121 and the gap between the substrate 121 and the lower film 123, it is helpful to completely peel off the upper film 122 and the lower film 123.

To sum up, in this invention, the front edge of the upper film and the lower film can be peeled off respectively through the lower hook and the upper hook, so as to facilitate the subsequent overall film peeling operation; 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, the substrate can still be positioned in the channel to maintain directional movement, thereby preventing the front edge of the entire sheet from being rolled up; Blow the air between the upper film and the substrate and between the substrate and the lower film, when the upper film stripping module and the lower film stripping module act at the same time, the upper film and the lower film can be separated from the substrate more smoothly and comprehensively Furthermore, since both sides of the first convex portion have a first upper bevel and a second upper bevel, and both sides of the second convex portion have a first lower bevel and a second lower bevel, the substrate can be The front edge is gradually inserted into the channel between the upper positioning piece and the lower positioning piece to ensure the positioning effect.

Although this creation discloses preferred specific embodiments to achieve the above-mentioned purpose, it is not intended to limit the structural features of this creation. Variations or modifications thereof are possible and are all covered by the scope of the patent application for this creation.

1: Position the tear film structure 11: Rack 12: Thin plate 121: Substrate 122: upper film 123: Lower film 13: Front conveying section 14: Rear conveying section 2: Front film peeling unit 21: Upper fulcrum 22: Upper cantilever 221: Lower hook 23: The first drive 24: Upper blowing unit 25: Lower fulcrum 26: Lower Cantilever 261: Limiting part 262: Upper hook 27: Second drive 271: Pushing Department 28: Down blowing unit 29: Elastic 3: Upper positioning piece 31: The first convex part 32: The first upper hypotenuse 33: Second upper hypotenuse 34: The first blowing port 4: Lower positioning piece 41: Second convex part 42: The first hypotenuse 43: The second lower hypotenuse 44: Second blow port 5: Channel 9: Upper stripping module 91: Lower stripping module 92: suction hole

﹝ FIG. 1 ﹞ is a schematic three-dimensional appearance diagram of the preferred embodiment of this creation installed on the rack. ﹝Figure 2﹞ is the sectional view of Figure 1 A-A'. . ﹝ FIG. 3 ﹞ is a three-dimensional appearance view of the film peeling unit before the preferred embodiment of this creation. ﹝ FIG. 4 ﹞ is a schematic diagram of the use state of the film peeling unit before the preferred embodiment of this creation. ﹝ FIG. 5 ﹞ is the combined three-dimensional appearance view of the upper positioning member and the lower positioning member according to the preferred embodiment of the creation. ﹝ FIG. 6 ﹞ is an exploded three-dimensional appearance view of the upper positioning member and the lower positioning member according to the preferred embodiment of this creation. ﹝ FIG. 7 ﹞ is a schematic diagram of the use state of the upper positioning member and the lower positioning member according to the preferred embodiment of the present invention.

3: Upper positioning piece

31: The first convex part

32: The first upper hypotenuse

33: Second upper hypotenuse

4: Lower positioning piece

41: Second convex part

42: The first hypotenuse

43: The second lower hypotenuse

5: Channel

Claims (10)

A positioning and tearing film structure, which is connected to a frame, the front end of the frame has a front conveying section for conveying a thin plate to move along the conveying direction from the front end to the rear end, and the upper film stripping module After peeling off an upper film on the upper surface of one of the substrates of the sheet, it is conveyed backward through a rear conveying section. : an upper positioning member having at least one first blowing port for forward blowing; and The lower positioning piece is connected below the upper positioning piece, and there is a channel between the upper positioning piece and the lower positioning piece for the substrate to pass from the front end to the rear end. The positioning and tearing film structure of claim 1, wherein the at least one first blowing port is connected to the passage between the upper positioning member and the lower positioning member for forward blowing. The positioning and tearing film structure of claim 1, wherein the lower positioning member has at least one second air blowing port for blowing air forward. The positioning tear-off film structure of claim 1, 2 or 3, wherein the upper positioning member and the lower positioning member are respectively vertically symmetrical flat plates, the front end of the upper positioning member has a first convex portion, and the first convex portion is formed by The rear end of the upper positioning member extends forward in the direction of the front end; the front end of the lower positioning member has a second convex portion, the second convex portion is vertically symmetrical with the first convex portion, and the second convex portion is formed by the lower The rear end of the positioning member extends forward in the direction toward the front end. The positioning tear-off film structure of claim 4, wherein one side of the first convex portion has a first upper bevel, and the other side of the first convex portion has a second upper bevel, and the first upper bevel extend backward at an angle with the second upper hypotenuse respectively; one side of the second convex part has a first lower hypotenuse, the other side of the second convex part has a second lower hypotenuse, the first The lower hypotenuse and the second lower hypotenuse respectively extend backward at an angle. The positioning and tearing film structure of claim 1, further comprising at least one front film peeling unit, the front film peeling unit comprising an upper support shaft, an upper cantilever and a first driving member, the upper support shaft is connected to the frame upper; one end of the upper cantilever is pivotally connected to the upper support shaft, and the other end of the upper cantilever has a lower hook, the lower hook is pressed down against the upper surface of the substrate, so as to peel off the front edge of the upper film; the first The lower end of a driving member is connected to the middle section of the upper cantilever for moving the lower hook of the upper cantilever up and down. The positioning and tearing film structure of claim 6, further comprising an upper air blowing unit, the upper air blowing unit is connected to the frame, and the upper air blowing unit is located above the rear conveying section for facing the lower hook portion blow air in the direction. According to the positioning and tearing film structure of claim 6 or 7, it further comprises a lower support shaft, a lower cantilever and a second driving member, the lower support shaft is connected to the frame and is correspondingly arranged below the upper support shaft; the lower support shaft One end of the cantilever is pivotally connected to the lower support shaft, the middle of the lower cantilever has a limit portion for positioning an elastic member, and the other end of the lower cantilever has an upper hook, which presses upward against the base plate. The lower surface is used to peel off the front edge of a lower film on the lower surface of the substrate; the upper end of the second driving member has a pushing portion, the pushing portion is connected to the elastic member for pushing to move the upper portion of the lower cantilever upwards hook. According to the positioning and tearing film structure of claim 8, it further comprises a lower air blowing unit, the lower air blowing unit is connected to the frame, and the lower air blowing unit is located below the rear conveying section for the direction toward the upper hook portion Blow out air. The positioning and tearing film structure of claim 1, wherein the upper film peeling module is a horizontally arranged cylinder, the upper film peeling module is positioned above the rear end of the front conveying section and parallel to the front end edge of the sheet, the upper The cylinder body of the film stripping module has a plurality of suction holes for sucking the upper film.

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