Film material feeding device and film material feeding method

Abstract

The invention provides a film material feeding device which comprises a film material supply mechanism, a power source and a control unit. The film material supply mechanism comprises a supply roller, a guide roller and a winding roller. The supply roller is used for supplying a film material containing a release film and a base material. The guide roller is arranged corresponding to the supply roller and is used for separating the release film from the base material. The winding roller is arranged corresponding to the supply roller and is used for winding the release film separated from the base material. The power source is connected to the guide roller. The control unit is in communication connection with the power source. The control unit operates the power source according to the requirement that a permanent film separation line is not formed between the release film and the base material.

Description

Technical Field

[0001] The invention relates to a film material feeding device and a film material feeding method. Background Art

[0002] As electronic devices become smaller and more high-performance, electronic circuit substrates carried by electronic devices widely use multilayered circuit substrates, i.e., so-called multilayer boards (Multilayer PCBs). Multilayer boards are formed by alternately stacking multiple layers, with circuits with concave and convex shapes printed on the surfaces of some layers, and some other layers are insulating resin films. For example, in order to manufacture a multilayer board with a multilayer structure, the following steps must be repeated: a step of forming a circuit pattern on a substrate, a step of stacking a resin film on the substrate, and a step of hardening the resin film.

[0003] The accumulation of multiple layers can be accomplished by a laminator or a film laminator. Generally speaking, the laminator or the film laminator may include a workpiece that picks up the film material and attaches the film material to the surface of the substrate. When the laminator or the film laminator is not in operation, the workpiece will keep the film material in a predetermined standby position.

[0004] The film material usually has a multilayer structure including a release film and a substrate. When in use, the release film is separated from the substrate, and the substrate is attached to the surface of the substrate. When the film laminating machine or the laminating machine is not in operation, the release film stops separating from the substrate. In this case, the material properties of some film materials may cause a permanent separation line visible to the naked eye to form at the position where the release film is separated from the substrate, and the permanent separation line cannot be eliminated. The permanent separation line will affect the yield of the substrate being attached to the surface of the substrate, so avoiding the formation of the permanent separation line is one of the issues that need to be solved in this field. Summary of the invention

[0005] In view of the above problems, the present invention provides a film material feeding device, which helps to solve the problem of forming a permanent film separation line at the position where the release film is separated from the substrate. The present invention also provides a film material feeding method.

[0006] The film material feeding device disclosed in the present invention comprises a film material supply mechanism, a power source and a control unit. The film material supply mechanism comprises a supply roller, a first guide roller and a winding roller. The supply roller is used to supply a film material comprising a release film and a substrate. The first guide roller is arranged corresponding to the supply roller and is used to separate the release film from the substrate. The winding roller is arranged corresponding to the supply roller and is used to wind up the release film separated from the substrate. The power source is connected to the first guide roller. The control unit is communicatively connected to the power source. The control unit operates the power source according to the requirement that no permanent film separation line is formed between the release film and the substrate.

[0007] The film material feeding method disclosed in the present invention comprises: supplying a film material including a release film and a substrate through a film material supply mechanism, wherein the release film is partially separated from the substrate; fixing the substrate through a film fixing member; and executing a film release procedure, rotating a first guide roller of the film material supply mechanism through a power source to further separate the release film from the substrate.

[0008] According to the film material feeding device and the film material feeding method disclosed in the present invention, the film material feeding device includes a power source that allows the guide roller to actively rotate to feed the substrate and a control unit that can control the operation of the power source according to the need to not form a permanent film separation line. According to the film material feeding method disclosed in the present invention, the control unit controls the power source to continuously feed the substrate, or to feed the substrate at a fixed time interval that is less than the critical time that will produce a permanent film separation line. Thereby, in the standby state where no film laminating operation or film pressing operation is performed, the release film and the substrate can still be separated by the guide roller and the power source, thereby preventing the formation of a permanent film separation line.

[0009] The above description of the content of the present invention and the following description of the embodiments are used to demonstrate and explain the principles of the present invention and to provide further explanation of the claims of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 FIG. 4 is a schematic diagram of a laminating machine according to an embodiment of the present invention.

[0011] Figure 2 for Figure 1 A three-dimensional schematic diagram of a film material feeding device of a laminating machine.

[0012] Figure 3 for Figure 2 A side view schematic diagram of a film material feeding device.

[0013] Figures 4 to 6 Schematic diagram of a film material feeding method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0014] The detailed features and advantages of the present invention are described in detail in the following embodiments, and the contents are sufficient for those skilled in the art to understand the technical content of the present invention and implement it accordingly. According to the contents disclosed in this specification, the claims and the drawings, those skilled in the art can easily understand the present invention. The following examples further illustrate the viewpoints of the present invention in detail, but are not intended to limit the scope of the present invention in any way.

[0015] Please refer to Figure 1, is a schematic diagram of a laminating machine according to an embodiment of the present invention. In this embodiment, the laminating machine 1 includes a film material feeding device 10, a supporting platform 20 and a laminating device 30. The laminating machine 1 can be a film laminating machine or a film pressing machine, and the film laminating machine attaches the film material to the surface of the substrate. In addition to attaching the film material, the film pressing machine also squeezes the film material so that it is flattened on the substrate. The supporting platform 20 is arranged corresponding to the film material feeding device 10, and the supporting platform 20 is used to carry the substrate (not shown). In the state where the laminating machine 1 is a film laminating machine, the laminating device 30 may include a vacuum chamber. In the state where the laminating machine 1 is a film pressing machine, the laminating device 30 may include a pressure roller or a flat flattening member. Figure 1 The lamination device 30 is shown as an example and includes a pressure roller.

[0016] Figure 2 for Figure 1 A three-dimensional schematic diagram of a film material feeding device of a laminating machine, and Figure 3 for Figure 2 The film material feeding device 10 comprises a film material supply mechanism 110 , a power source 120 and a control unit 130 .

[0017] The film material supply mechanism 110 includes a supply roller 111, a first guide roller 112, and a take-up roller 113. The supply roller 111 may be a roller for setting a film material roll including a release film 101 and a substrate 102. The first guide roller 112 is provided corresponding to the supply roller 111. The first guide roller 112 is used to separate the release film 101 of the film material from the substrate 102. The take-up roller 113 is provided corresponding to the supply roller 111. The take-up roller 113 is used to take up the release film 101 that has been separated from the substrate 102, so the take-up roller 113 can also be understood as a waste film recovery roller.

[0018] The power source 120 is, for example but not limited to, a hydraulic cylinder or a stepper motor, which is connected to the first guide roller 112. The power source 120 can drive the first guide roller 112 to rotate to actively separate the substrate 102 and the release film 101 and feed the substrate 102.

[0019] The control unit 130 is, for example but not limited to, a microprocessor or an external computer device disposed in the power source 120, which is communicatively connected to the power source 120. The control unit 130 can operate the power source 120 according to the requirement that no permanent separation line is formed between the release film 101 and the substrate 102. In other words, the control unit 130 can control the power source 120 to operate intermittently or continuously. The specific method of controlling the operation of the power source 120 by the control unit 130 will be further described in the subsequent film material feeding method.

[0020] In this embodiment, the film material supply mechanism 110 further includes a film fixing member 114. The film fixing member 114 is used to fix the substrate 102 provided from the first guide roller 112. Further, the film fixing member 114 is, for example but not limited to, a clamping claw or a suction cup plate with a negative pressure hole. The film fixing member 114 can pick up the substrate 102 and can be relatively Figure 1 The carrying table 20 of the lamination machine 1 moves to drive the substrate 102 to approach the substrate disposed on the carrying table 20, so as to attach the substrate 102 to the surface of the substrate.

[0021] In the present embodiment, the film material supply mechanism 110 further includes another second guide roller 115. The first guide roller 112 is between the supply roller 111 and the second guide roller 115, and the second guide roller 115 is used to adjust the feeding direction of the substrate 102 provided from the first guide roller 112. In the present embodiment, the first guide roller 112 can be meshed with the second guide roller 115 through a gear, so that when the power source 120 drives the first guide roller 112 to rotate, the second guide roller 115 can also be driven to rotate, but the present invention is not limited thereto. In some embodiments, the second guide roller 115 can be connected to another power source different from the power source 120, so that the first guide roller 112 and the second guide roller 115 can rotate independently of each other.

[0022] In this embodiment, the film material supply mechanism 110 further includes a tension adjusting member 116. The tension adjusting member 116 is disposed between the film fixing member 114 and the first guide roller 112 along the feeding direction of the substrate 102. The tension adjusting member 116 includes a main body 1161, a driven roller 1162, and a counterweight 1163. The main body 1161 is rotatably disposed, and the driven roller 1162 and the counterweight 1163 are respectively disposed at opposite ends of the main body 1161. In addition, the counterweight 1163 is closer to the first guide roller 112 than the driven roller 1162. The tension adjusting member 116 is used to tension the substrate 102 of the film material.

[0023] The following describes a film material feeding method performed using the film material feeding device. Figures 4 to 6 Schematic diagram of a film material feeding method according to an embodiment of the present invention.

[0024] like Figure 4 As shown, the film material 100 including the release film 101 and the substrate 102 is supplied by the film material supply mechanism 110 of the film material feeding device 10. The release film 101 is, for example but not limited to, a PET (polyethylene terephthalate) film, and the substrate 102 is, for example but not limited to, a dry film, a photoresist film or an ABF film.

[0025] The film material 100 is provided by the supply roller 111 of the film material supply mechanism 110. When the film material 100 is fed to the first guide roller 112, the release film 101 is partially separated from the substrate 102, and the first guide roller 112 feeds the release film 101 toward the take-up roller 113 and feeds the substrate 102 toward the second guide roller 115. The take-up roller 113 takes up the release film 101. The second guide roller 115 adjusts the feeding direction of the substrate 102 and feeds the substrate 102 toward the tension adjusting member 116. The substrate 102 crosses the driven roller 1162 of the tension adjusting member 116, and is then fed to the film fixing member 114.

[0026] like Figure 4 As shown, the substrate 102 is fixed by the film fixing member 114. Specifically, the film fixing member 114 picks up and fixes the end 1021 of the substrate 102, so that the substrate 102 is prepared for the subsequent film pasting operation or film pressing operation. When the film pasting operation or film pressing operation is performed, the film fixing member 114 drives the substrate 102 to move down close to the substrate (not shown) to attach the substrate 102 to the substrate surface. Figure 4 The state in can be understood as a standby state where no film laminating operation or film pressing operation is performed, that is, the first guide roller 112 is in a Figure 4 The release film 101 and the substrate 102 are not fed.

[0027] like Figure 5 and Figure 6 As shown, the film release procedure is performed, and the first guide roller 112 of the film material supply mechanism 110 is rotated by the power source 120 to further separate the release film 101 from the substrate 102. Further, the power source 120 is controlled by the control unit 130 to rotate the first guide roller 112. In this embodiment, the power source 120 only drives the first guide roller 112, and drives the second guide roller 115 through gear transmission, but the present invention is not limited to this. In other embodiments where the first guide roller 112 and the second guide roller 115 are not gear-engaged, the power source 120 can rotate the first guide roller 112 and the second guide roller 115 separately, or another power source can be added to rotate the second guide roller 115.

[0028] The control unit 130 operates the power source 120 according to the requirement that no permanent separation line is formed between the release film 101 and the substrate 102. Figure 4In the process, since the film pasting operation or the film pressing operation is not performed, the film material supply mechanism 110 does not need to feed the substrate 102 to the base plate, so the release film 101 and the substrate 102 will stop separating. As the time when the film pasting operation or the film pressing operation is not performed increases, a permanent film separation line containing bubbles may be formed at the position P where the release film 101 and the substrate 102 are separated due to the natural shaking of the substrate 102 and the infiltration of air. Since the permanent film separation line will not be generated until the release film 101 and the substrate 102 stop separating for more than a specific time, the specific time determined by the material properties can be understood as the critical time. In order to prevent the permanent film separation line from being generated, the control unit 130 needs to control the power source 120 to continuously and repeatedly execute the film release procedure, or to repeatedly execute the film release procedure at a fixed time interval, wherein the fixed time interval is associated with the critical time for the formation of a permanent film separation line between the release film 101 and the substrate 102, that is, the fixed time interval is preferably less than the critical time.

[0029] To illustrate with a more specific example, the critical time for forming a permanent separation line is, for example, 30 seconds, that is, once the release film 101 and the substrate 102 stop separating for more than 30 seconds, a permanent separation line will be formed at position P. In this case, the control unit 130 controls the power source 120 to rotate intermittently at a fixed time interval of, for example, 25 seconds, and feeds the release film 101 and the substrate 102 at a speed of, for example, 0.1 mm / s, that is, the power source 120 is started by the control unit 130 every 25 seconds to feed the release film 101 and the substrate 102. Alternatively, the control unit 130 can control the power source 120 to rotate continuously (the time interval can be understood as 0 seconds), and feed the release film 101 and the substrate 102 at a speed of, for example, 0.1 mm / s. In this way, in the standby state where no film laminating operation or film pressing operation is performed, the release film 101 and the substrate 102 can still be separated by the first guide roller 112 and the power source 120, thereby preventing the formation of a permanent separation line. The specific times and speeds listed above are only examples, and the present invention is not limited thereto.

[0030] In addition, in this embodiment, after or while performing the film release procedure, the tension of the substrate 102 is adjusted by the tension adjustment member 116 to return to the tension value before performing the film release procedure. Figure 5 and Figure 6 As shown, in the standby state where no film laminating or film pressing operation is performed, the film material supply mechanism 110 does not need to feed the substrate 102 to the substrate, so the film fixing member 114 will keep picking up the end 1021 of the substrate 102. In this case, after or during the film release process, the substrate 102 located between the film fixing member 114 and the first guide roller 112 along the feeding direction will become loose due to being actively fed by the first guide roller 112 (such as Figure 5At this time, due to the moment generated by the counterweight 1163, the tension adjuster 116 rotates so that the right end droops and the left end rises, thereby re-tensioning the substrate 102.

[0031] In summary, according to the film material feeding device and film material feeding method disclosed in the present invention, the film material feeding device includes a power source that allows the guide roller to actively rotate to feed the substrate and a control unit that can control the operation of the power source according to the need to not form a permanent film separation line. According to the film material feeding method disclosed in the present invention, the control unit controls the power source to continuously feed the substrate, or to feed the substrate at a fixed time interval that is less than the critical time for generating a permanent film separation line. Thereby, in the standby state where no film laminating operation or film pressing operation is performed, the release film and the substrate can still be separated by the guide roller and the power source, thereby preventing the formation of a permanent film separation line.

[0032]

Explanation of symbols

[0033] 1: Lamination machine

[0034] 10: Film feeding device

[0035] 110: Film material supply mechanism

[0036] 111: Supply roller

[0037] 112: First guide roller

[0038] 113: Winding roller

[0039] 114: Membrane fixing part

[0040] 115: Second guide roller

[0041] 116: Tension adjustment piece

[0042] 1161: Main body

[0043] 1162: Driven roller

[0044] 1163: Counterweight

[0045] 120: Power Source

[0046] 130: Control unit

[0047] 20: Loading platform

[0048] 30: Lamination device

[0049] 100: Film material

[0050] 101: Release film

[0051] 102: Base material

[0052] 1021: The End

[0053] P: Position.

Claims

1. A film material feeding device, characterized in that: Include: The film material supply mechanism comprises: A supply roller, used for supplying a film material including a release film and a substrate; A first guide roller is disposed corresponding to the supply roller, and the first guide roller is used to separate the release film from the substrate; as well as A take-up roller is disposed corresponding to the supply roller, and the take-up roller is used to take up the release film separated from the substrate; A power source connected to the first guide roller; as well as The control unit is communicatively connected to the power source, and the control unit operates the power source according to the requirement that no permanent separation line is formed between the release film and the substrate. 2 . The film feeding device according to claim 1 , wherein the film supply mechanism further comprises a film fixing member, and the film fixing member is used to fix the substrate provided from the first guide roller. 3 . The film material feeding device according to claim 2 , wherein the film material supply mechanism further comprises a tension adjusting member, and the tension adjusting member is disposed between the film fixing member and the first guide roller.

4. The film material feeding device according to claim 1, wherein the film material supply mechanism further comprises a tension adjusting member, the tension adjusting member comprises a main body, a driven roller and a counterweight portion, the main body is rotatably arranged, and the driven roller and the counterweight portion are respectively arranged at opposite ends of the main body. 5 . The film material feeding device according to claim 4 , wherein the counterweight portion is closer to the first guide roller than the driven roller. 6 . The film material feeding device according to claim 1 , wherein the film material supply mechanism further comprises a second guide roller, and the second guide roller is used to adjust the feeding direction of the substrate provided from the guide roller.

7. A film material feeding method, characterized in that: Include: Supplying a film material including a release film and a substrate through a film material supply mechanism, wherein the release film is separated from the substrate; fixing the substrate by a film fixing member; and The film releasing procedure is executed, and the first guide roller of the film material supply mechanism is rotated by a power source so that the release film is further separated from the substrate.

8. The film material feeding method according to claim 7, wherein the film releasing procedure is repeatedly performed intermittently. 9 . The film feeding method according to claim 8 , wherein the film releasing procedure is repeatedly performed at a fixed time interval, and the fixed time interval is associated with a critical time for forming a permanent separation line between the release film and the substrate.

10. The film material feeding method according to claim 7, wherein the film releasing procedure is continuously and repeatedly performed.

11. The film material feeding method according to claim 7, wherein: Also includes: After or at the same time as the film releasing procedure is performed, the tension of the substrate is adjusted by a tension adjusting member to return to the tension value before the film releasing procedure is performed.

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