TWI820653B - Partial film peeling structure (1) - Google Patents

Abstract

The present invention provides a partial film peeling structure. The partial film peeling structure comprises an upper positioning piece. The upper positioning piece has a first long flat plate having two sides in the longitudinal direction of the first long flat plate respectively connected with two sides of a frame, and the first long flat plate has a plate surface provided with a plurality of first positioning grooves. At least one upper rolling wheel group is respectively positioned in the plurality of first positioning grooves. The at least one upper rolling wheel group includes a plurality of upper rolling wheels arranged at intervals, and the arrangement direction of the plurality of upper rolling wheels is parallel to the longitudinal direction of the first long flat plate, and an axis of one upper rolling wheel and the long direction of the first long flat plate cross each other to form a first angle, such that an upper film on a thin plate is sandwiched between a substrate and the plurality of upper rolling wheels, and when the thin plate is conveyed backward from a front conveying section through a rear conveying section, a front edge of the upper film can be peeled off smoothly and effectively.

Description

Partial film peeling structure (1)

This invention relates to a partial film peeling structure, especially one that can peel off the front edge of the film smoothly and effectively.

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. After exposure, the film is peeled off to remove the photoresist. The layer is exposed for subsequent development and etching processes. The existing method of peeling off films by film stripping machines mainly uses a front conveying section to convey thin plates such as the above-mentioned printed circuit boards, so that the thin plates move along the conveying direction from front to back, and the thin plates are blocked and positioned by a blocking unit. After rolling on the film surface through a set of embossing wheels, the sheet will continue to be transported backward along a rear conveying section, and a set of adhesive wheels will gradually peel off the wrinkled film on the front edge.

Through the above-mentioned film stripping machine structure, the efficiency of stripping the film can indeed be improved. However, during the actual process of peeling off the film, it was discovered that since the thickness of the substrate itself is not large, it is prone to bending and unevenness. When a long straight cylindrical adhesive wheel with the same outer diameter is used to adhere the film, the adhesion force at each adhesive position will not be perfect. 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 flakes will still adhere to the surface of the photoresist layer, and often due to the film The area of brittle chips is too small to be detected. This phenomenon will cause the substrate to be scrapped during the entire printed circuit board manufacturing process. Therefore, there are currently different models of machines that are used to separate the front edge peeling of the film and the subsequent complete film peeling, so as to make the construction more professional through effective division of labor, thereby improving the output quality of the film peeling operation.

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 and improvement, and thus came into being this creation.

One of the purposes of this creation is to provide a partial film peeling structure so as to solve the problem that the conventional film peeling machine needs to roll the film surface through a set of embossing wheels and then use a set of adhesive wheels to produce the front edge during the film peeling process. The wrinkled film is gradually peeled off, and due to the different adhesion forces of the straight-cylindrical adhesive wheel adhering to the film at various locations, the front edge of the film cannot be peeled off smoothly. This problem can be solved by providing at least one rolling wheel on at least one long flat plate. The axis line of any rolling wheel intersects with the long direction of the long plate to form an acute angle structure, so that the front edge of the film can be smoothly and effectively separated from the substrate, which facilitates the subsequent overall film peeling operation.

In order to achieve the purpose of the above creation, part of the film peeling structure set up in this creation 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 then transported backward through a rear conveying section to peel off an upper film on the upper surface of one of the substrates. Its main technical feature is that part of the film peeling structure includes an upper positioning member and at least one upper rolling wheel set. The upper positioning member has a first long flat plate, and both sides of the first long flat plate in the longitudinal direction are respectively connected to both sides of the frame. A plurality of first positioning grooves are provided on the surface of the first long flat plate; and at least one upper The rolling wheel set is positioned in a plurality of first positioning grooves. The upper rolling wheel set includes a plurality of upper rolling wheels arranged at intervals. The arrangement direction of the plurality of upper rolling wheels is parallel to the long direction of the first long flat plate, and The axis line of any upper rolling wheel intersects with the longitudinal direction of the first long plate to form a first acute angle, whereby the upper film is sandwiched between the base plate and the plurality of upper rolling wheels to peel off the front end of the upper film fate.

During implementation, a plurality of first protrusions in the same plane are provided on the surface of the first long flat plate, and the plurality of first protrusions respectively protrude from a plurality of first positioning grooves; any of the plurality of upper rolling wheels An upper rolling wheel includes an upper roller and an upper shaft. The upper roller is sleeved with the upper shaft. One end of the upper shaft is connected to the first protrusion for the upper roller to be limited in the first positioning groove.

During implementation, there is a first annular space between the inner circumference of the upper roller and the outer circumference of the upper shaft for the upper shaft to move up and down in the first annular space.

When implemented, the invention further includes a first driving component, the first driving component is connected to the frame, and one end of the first driving component is connected to the upper positioning member for driving the upper positioning member to move up and down.

When implemented, the invention further includes a second driving component, the second driving component is connected to the frame, and one end of the second driving component is connected to the first driving component for driving the first driving component to move up and down.

During implementation, the invention further includes a lower positioning piece, which is correspondingly arranged below the upper positioning piece. The lower positioning piece has a second long flat plate, and the two sides of the second long flat plate in the long direction are respectively connected to both sides of the frame. A plurality of second positioning grooves are provided on the surface of the two long flat plates for positioning at least one lower rolling wheel set. The lower rolling wheel set includes a plurality of lower rolling wheels arranged at intervals, and the arrangement direction of the plurality of lower rolling wheels is Parallel to the long direction of the second long flat plate, the axis of any lower rolling wheel intersects with the long direction of the second long flat plate to form a second acute angle, so that the film under the lower surface of the substrate is sandwiched between the substrate and a plurality of lower rolling wheels between the wheels to peel off the front edge of the lower film; one end of the second driving component is connected to the lower positioning member to drive the lower positioning member to move up and down.

During implementation, the invention further includes a lower positioning piece, which is correspondingly arranged below the upper positioning piece. The lower positioning piece has a second long flat plate, and the two sides of the second long flat plate in the long direction are respectively connected to both sides of the frame. A plurality of second positioning grooves are provided on the surface of the second long flat plate for positioning at least one lower rolling wheel set. The lower rolling wheel set includes a plurality of lower rolling wheels arranged at intervals, and the arrangement of the plurality of lower rolling wheels is The direction is parallel to the long direction of the second long flat plate, and the axis of any lower rolling wheel intersects with the long direction of the second long flat plate to form a second acute angle, so that the film under the lower surface of the substrate is sandwiched between the substrate and a plurality of lower Roll between rollers to peel off the front edge of the film.

When implemented, the invention further includes a second driving component, the second driving component is connected to the frame, and one end of the second driving component is connected to the lower positioning component for driving the lower positioning component to move up and down.

In order to further understand this creation, the following is a preferred embodiment, and together with the drawings and drawing numbers, the specific components of this creation and the effects achieved are described in detail as follows:

Please refer to Figures 1 and 2. Part of the film peeling structure 1 of the present invention is used to peel off the front edge of at least one film from the thin plate 12 on a frame 11, wherein one end of the frame 11 inputting the thin plate 12 is defined as the machine The front end of the frame 11 and one end of the output sheet 12 are defined as the rear end of the frame 11. The front end of the frame 11 has a front conveying section 13, and 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 horizontally spaced rollers for conveying the thin plate 12 to move along the front end of the frame 11 toward the rear end.

Please refer to Figures 3 to 8, which are a preferred embodiment of the partial film peeling structure 1 of the present invention. It mainly includes an upper positioning member 2, at least one upper rolling wheel set 3, a lower positioning member 4 and at least a lower roller. Pressure wheel set 5. The upper positioning member 2 is a rectangular frame, and has a first long flat plate 21. The first long flat plate 21 is provided with a plurality of first positioning grooves 22 arranged at intervals, and the first long flat plate 21 is provided with a plurality of first positioning grooves 22 arranged at intervals. The plate surface of 21 has a plurality of protrusions on the same plane. The protrusions serve as first protrusions 23. The plurality of first protrusions 23 respectively protrude from a plurality of first positioning grooves 22 to allow the first positioning. The groove 22 has a "concave" shape. Both sides of the first long plate 21 in the longitudinal direction are respectively connected to the upper end of a piston group to allow the upper positioning member 2 to move up and down. The two pistons are combined as a first driving component 24 .

The upper rolling wheel set 3 has three rows. During implementation, the upper rolling wheel set 3 can also be one row or more than one row. Any upper rolling wheel set 3 includes a plurality of upper rolling wheels 31 arranged at intervals. The arrangement direction of the plurality of upper rolling wheels 31 is parallel to the long direction of the first long flat plate 21, and the axis of any upper rolling wheel 31 The center line X and the longitudinal direction Y of the first long flat plate 21 intersect with each other to form a first acute angle θ1. Each upper rolling wheel 31 includes an upper roller 32 and an upper shaft 33. The upper roller 32 is sleeved on the upper shaft 33. There is a first ring between the inner circumference of the upper roller 32 and the outer circumference of the upper shaft 33. shaped space 34, so that the upper shaft 33 can move up and down in the first annular space 34; the bottom of one end of the upper shaft 33 has a long gap 331 for allowing the upper shaft 33 to move up and down after overlapping the first protruding portion 23. The upper shaft 33 and the first protrusion 23 are accommodated in the upper roller 32 at the same time. After one end of the upper shaft 33 is locked and connected to the surface of the first long flat plate 21, the upper shaft 33 can be aligned upward. The roller limit 32 has strong support; and when the upper roller 32 is limited in the first positioning groove 22, the upper and lower ends of the upper roller 32 are respectively protrude from the upper plate surface and the lower plate surface of the first long flat plate 21 . In addition, an annular gasket 35 is sleeved with the upper shaft 33 and located on one end surface of the upper roller 32 to form a buffering effect and extend the service life of the upper roller 32.

The lower positioning part 4 is a rectangular frame, and is correspondingly arranged below the upper positioning part 2. The lower positioning part 4 has a second long flat plate 41, and the second long flat plate 41 is connected with the first long flat plate of the upper positioning part 2. 21 are parallel to each other, and the second long flat plate 41 has a plurality of second positioning grooves 42 on the plate surface to position the three rows of lower rolling wheel sets 5. During implementation, the lower rolling wheel sets 5 can also be in one row or in one row. above. Any lower rolling wheel set 5 includes a plurality of lower rolling wheels 51 arranged at intervals. The arrangement direction of the plurality of lower rolling wheels 51 is parallel to the long direction of the second long flat plate 41, and the axis X1 of any lower rolling wheel 51 is in line with The longitudinal directions Y1 of the second long flat plates 41 intersect with each other to form a second acute angle θ2. The two long sides of the second long flat plate 41 are respectively connected to the upper ends of one of the piston groups on both sides of the frame 11 to allow the lower positioning member 4 to move up and down. The two piston groups are set as the second driving assembly 43 . The upper end of the second driving component 43 is connected to the first driving component 24 to drive the first driving component 24 and the upper positioning member 2 to move up and down synchronously. During implementation, the first driving component 24 and the second driving component 43 can also be connected to both sides of the frame 11 respectively to drive the upper positioning member 2 and the lower positioning member 4 to move up and down respectively to adjust the upper rolling wheel 31 respectively. and the pressure exerted by the lower rolling wheel 51 on the thin plate 12.

Therefore, when the thin plate 12 is a flat plate such as a printed circuit board, it mainly includes a substrate 121 with an upper film 122 on the upper surface, and a lower film 123 on the lower surface of the substrate 121 . A thin plate 12 is sandwiched between a plurality of upper rolling wheels 31 and a plurality of lower rolling wheels 51, and is transported backward from the front conveying section 13 to the rear conveying section 14, that is, the upper film 122 is sandwiched between the substrate 121 and the base plate 121. between the plurality of upper rolling wheels 31 , and the lower film 123 is sandwiched between the substrate 121 and the plurality of lower rolling wheels 51 . When the thin plate 12 moves horizontally and allows the upper film 122 and the lower film 123 to contact the plurality of upper rolling wheels 31 and the plurality of lower rolling wheels 51 respectively, each rotating roller structure can be arranged diagonally. The upper rolling wheels 31 generate greater frictional resistance and upward twisting force when rotating, and each lower rolling wheel 51 generates larger frictional resistance and downward twisting force when rotating, thereby respectively peeling off the upper film 122 and the lower film 122 . The front edge of the film 123.

To sum up, this invention, through the diagonally arranged rotating roller structure, can allow each rolling wheel to generate greater frictional resistance and downward rotational twisting force to peel off at least one front edge of the film. For curved and uneven thin plates, a plurality of rolling wheels arranged at intervals can generate the force to lift the front edge of the film in each section, and cooperate with the fine-tuning structure of each rolling wheel to move up and down respectively, so that the film can be The front edge can be completely peeled off smoothly and effectively to facilitate the subsequent overall film peeling operation.

Although this invention discloses preferred specific embodiments to achieve the above objectives, they are not intended to limit the structural features of this invention. Any person with ordinary knowledge in the technical field should know that within the technical spirit of this invention, any easily imagined Any changes or modifications are possible and are covered by the patentable scope of this invention.

1: Partial film peeling structure 11:Rack 12:Thin plate 121:Substrate 122: Apply film 123:Lower film 13: Front conveyor section 14: Rear conveying section 2: Upper positioning piece 21:The first long flat plate 22: First positioning slot 23: First protrusion 24:First drive component 3: Upper rolling wheel set 31: Upper rolling wheel X: Axis line of upper rolling wheel Y: Long direction of the first long plate θ1: first acute angle 32: Upper roller 33: Upper shaft rod 331: long gap 34:The first annular space 35: Ring gasket 4: Lower positioning piece 41: The second longest flat plate 42: Second positioning slot 43: Second drive assembly 5: Lower rolling wheel set 51: Lower rolling wheel X1: axis of lower rolling wheel Y1: Long direction of the second longest plate θ2: The second acute angle

﹝ Figure 1 ﹞ is a side view of the film peeling process of the preferred embodiment of the present invention installed on the frame. ﹝Figure 2﹞is a top view of the film peeling process of the preferred embodiment of the present invention installed on the frame. (Figure 3) is a three-dimensional appearance view of the preferred embodiment of this invention. (Figure 4) is a three-dimensional appearance view of the positioning member according to the preferred embodiment of this invention. (Figure 5) is an enlarged view of part A of Figure 4. (Figure 6) is a cross-sectional view of part B of Figure 4. (Figure 7) is a three-dimensional appearance view of the positioning member according to the preferred embodiment of this invention. (Fig. 8) is a schematic diagram of the use state of the first driving component and the second driving component respectively moving the upper positioning member and the lower positioning member according to the preferred embodiment of the present invention.

1: Partial film peeling structure

12:Thin plate

121:Substrate

122: Apply film

123:Lower film

13: Front conveyor section

14: Rear conveying section

2: Upper positioning piece

21:The first long flat plate

24:First drive component

31: Upper rolling wheel

4: Lower positioning piece

41: The second longest flat plate

43: Second drive assembly

51: Lower rolling wheel

Claims (8)

A partial film peeling 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 then convey it backward through a rear conveying section. , to peel off the film on the upper surface of one of the substrates of the thin plate, characterized in that the partial film peeling structure includes: An upper positioning member has a first long flat plate, the two sides of the first long flat plate in the longitudinal direction are respectively connected to the two sides of the frame, and a plurality of first positioning grooves are provided on the surface of the first long flat plate; as well as At least one upper rolling wheel set is positioned in the plurality of first positioning grooves. The upper rolling wheel set includes a plurality of upper rolling wheels arranged at intervals. The arrangement direction of the plurality of upper rolling wheels is parallel to the first positioning groove. The long direction of a long flat plate, and the axis line of any upper rolling wheel intersects with the long direction of the first long flat plate to form a first acute angle, thereby sandwiching the upper film between the substrate and the plurality of between two upper rolling wheels to peel off the front edge of the upper film. The partial film peeling structure of claim 1, wherein the first long flat plate is provided with a plurality of first protrusions on the same plane, and the plurality of first protrusions respectively protrude from the plurality of first protrusions. Positioning groove; any upper rolling wheel of the plurality of upper rolling wheels includes an upper roller and an upper shaft. The upper roller is sleeved with the upper shaft, and one end of the upper shaft is connected to the first protrusion. part for the upper roller to be limited in the first positioning groove. The partial film peeling structure of claim 2, wherein there is a first annular space between the inner circumference of the upper roller and the outer circumference of the upper shaft for the upper shaft to move up and down in the first annular space. . The partial film peeling structure of claim 1 further includes a first driving component connected to the frame, and one end of the first driving component is connected to the upper positioning member for driving the upper positioning member up and down. Move. The partial film peeling structure of claim 4 further includes a second driving component, the second driving component is connected to the frame, and one end of the second driving component is connected to the first driving component for driving the first driving component. The component moves up and down. The partial film peeling structure of claim 5 further includes a lower positioning member, the lower positioning member is disposed correspondingly below the upper positioning member, the lower positioning member has a second long flat plate, and the longitudinal direction of the second long flat plate The two sides are connected to the two sides of the frame respectively, and a plurality of second positioning grooves are provided on the surface of the second long flat plate for positioning at least one lower rolling wheel set. The lower rolling wheel set includes a plurality of spaced apart rollers. Lower rolling wheels, the arrangement direction of the plurality of lower rolling wheels is parallel to the long direction of the second long flat plate, and the axis of any lower rolling wheel intersects with the long direction of the second long flat plate to form a second An acute angle is used to sandwich a lower film on the lower surface of the substrate between the substrate and the plurality of lower rolling wheels to peel off the front edge of the lower film; one end of the second driving component is connected to the lower positioning member for The lower positioning member is driven to move up and down. The partial film peeling structure according to any one of claims 1 to 4, further comprising a lower positioning member, the lower positioning member being disposed correspondingly below the upper positioning member, the lower positioning member having a second long flat plate, the third The two long sides of the two long flat plates are respectively connected to the two sides of the frame. A plurality of second positioning grooves are provided on the surface of the second long flat plate for positioning at least one lower rolling wheel set, and the lower rolling wheel set It includes a plurality of lower rolling wheels arranged at intervals. The arrangement direction of the plurality of lower rolling wheels is parallel to the long direction of the second long flat plate, and the axis of any lower rolling wheel is mutually opposite to the long direction of the second long flat plate. Intersect to form a second acute angle, whereby a lower film on the lower surface of the substrate is sandwiched between the substrate and the plurality of lower rolling wheels to peel off the front edge of the lower film. The partial film peeling structure of claim 7 further includes a second driving component connected to the frame, and one end of the second driving component is connected to the lower positioning member for driving the lower positioning member up and down. Move.

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