A feeding system for producing FPC

Abstract

The present invention discloses a feeding system for producing FPC, including a control device and a material belt, the material belt including a coating layer, and also including a frame, the frame is provided with a feeding mechanism connected to the control device, a first material receiving mechanism, a die-cutting mechanism and a feeding mechanism, the frame is also provided with a tensioning device, the material belt is transmitted by the feeding mechanism, tensioned by the tensioning device, and rolled up by the first material receiving mechanism, the die-cutting mechanism is arranged at the path of the material belt, for die-cutting the coating layer, and the feeding mechanism cooperates with the die-cutting mechanism, for receiving and outputting the target product obtained by die-cutting by the die-cutting mechanism. Compared with the traditional method, the present invention does not need to separate and transport the target product through a feeder, simplifies the feeding structure and process, and its structure is more streamlined and reliable, with high integration, and can be seamlessly connected and coordinated with the suction and pasting machine, which is conducive to improving the production efficiency of FPC; positioning the target product by negative pressure adsorption can ensure the transmission accuracy, make the transmission operation more reliable, and help further improve the operation efficiency.

Description

Technical Field

[0001] The invention relates to a feeding system for producing FPC, which can be used for feeding materials of a suction and pasting machine for producing FPC. Background Art

[0002] FPC is the abbreviation of Flexible Printed Circuit, also known as soft circuit board, flexible printed circuit board, flexible circuit board, abbreviated as soft board or FPC, which has the characteristics of high wiring density, light weight and thin thickness. It is mainly used in many products such as mobile phones, laptops, PDAs, digital cameras, LCMs, etc.

[0003] According to the number of layers of conductive copper foil, FPC is divided into single-layer board, double-layer board, multi-layer board, double-sided board, etc. When producing single-layer FPC, usually the base material layer + transparent adhesive layer + copper foil layer is one main material, and the protective film layer + transparent adhesive layer + laminating layer is another auxiliary material.

[0004] When producing FPC with more than two layers, auxiliary materials of protective film layer + transparent adhesive layer + covering layer + transparent adhesive layer + protective film layer will also be used.

[0005] In the FPC production process, a suction and placement machine is often used to feed the target products made of the above-mentioned auxiliary materials. The current suction and placement machines generally adopt a feeder feeding method, which requires a die-cutting machine to make material rolls and separate the target products through a feeder. However, errors may occur in the delivery process of the target products, affecting the benefits. Summary of the invention

[0006] In order to improve the above shortcomings, the present invention provides a feeding system for producing FPC, which can simplify the feeding structure or at least simplify the feeding structure to a certain extent and improve the conveying efficiency of the target product. The present invention is implemented through the following technical scheme: A feeding system for producing FPC, including a control device and a material belt, the material belt includes a coating layer, and also includes a frame, the frame is provided with a feeding mechanism connected to the control device, a first material receiving mechanism, a die-cutting mechanism and a feeding mechanism, the frame is also provided with a tensioning device, the material belt is transmitted by the feeding mechanism, tensioned by the tensioning device, and reeled by the first material receiving mechanism, the die-cutting mechanism is arranged at the path of the material belt, for die-cutting the coating layer, the feeding mechanism cooperates with the die-cutting mechanism, for receiving and outputting the target product obtained by die-cutting by the die-cutting mechanism.

[0007] Preferably, the material strip further includes a protective film layer, and the frame is further provided with a second material receiving mechanism connected to the control device, the protective film layer is separated from the coating layer at the tensioning device, and is reeled up by the second material receiving mechanism.

[0008] Preferably, the loading mechanism includes a stepper motor, a carrying turntable and a suction device, the stepper motor is connected to the carrying turntable, the carrying area of ​​the carrying turntable is provided with an adsorption structure, and the suction device positions the target product through negative pressure adsorption of the adsorption structure.

[0009] Preferably, the tensioning device comprises an active first roller and a driven second roller, and the material strip passes between the first roller and the second roller and is tensioned by the second roller.

[0010] Preferably, the die-cutting mechanism is arranged at the path of the material strip between the tensioning device and the first material receiving mechanism.

[0011] Preferably, the two bearing areas are symmetrically arranged, and the stepping motor is used to rotate the bearing turntable 180° to replace the bearing area.

[0012] Preferably, the frame is further provided with a cutting device, which is arranged at the path of the material belt between the feeding mechanism and the tensioning device, and the position of the cutting device can be adjusted along the width direction of the material belt.

[0013] Preferably, a positioning device is also provided on the frame, and the positioning device is connected to a guide roller, and the guide roller is arranged at the path of the material belt between the feeding mechanism and the tensioning device, and the positioning device is used to adjust the position of the guide roller.

[0014] Compared with the traditional method, the present invention does not need to separate and transport the target products through a feeder, which simplifies the feeding structure and process. The structure is more streamlined and reliable, with a high degree of integration. It can be seamlessly connected and coordinated with the suction and sticking machine, which is beneficial to the improvement of FPC production efficiency. The target product is positioned by negative pressure adsorption, which can ensure the transmission accuracy, make the transmission operation more reliable, and help to further improve the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 It is a front structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A rear view structural diagram of ;

[0018] Figure 3 for Figure 1 A right view structural diagram of ;

[0019] Figure 4 for Figure 1 A schematic diagram of a top view structure;

[0020] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure.

[0021] The numbers in the figure correspond to the following: feeding mechanism 1, cutting device 101, positioning device 102, tensioning device 2, first protective film layer receiving mechanism 31, second protective film layer receiving mechanism 32, coating layer receiving mechanism 33, material strip 10, first protective film layer 11, coating layer 12, second protective film layer 13, loading mechanism 4, carrying turntable 41, die-cutting motor 51, eccentric wheel 52, transmission connecting rod 53, die-cutting device 54. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0023] As an example, the present embodiment produces a feeding system for FPC, such as Figures 1 to 5 As shown, it includes a frame, on which are provided a feeding mechanism 1, a tensioning device 2, a first protective film layer receiving mechanism 31, a second protective film layer receiving mechanism 32, a coating layer receiving mechanism 33, a loading mechanism 4 and a die-cutting mechanism. Each action mechanism is connected to a control device. When in use, the control device comprehensively controls the action timing of each action mechanism.

[0024] The material tape 10 used in this embodiment includes a first protective film layer 11, a coating layer 12 and a second protective film layer 13 in sequence, and adhesive layers are provided on both sides of the coating layer 12. Of course, depending on the different material tapes 10 required for producing different types of FPCs, the material tape 10 can be changed accordingly, such as including only the first protective film layer 11 and the coating layer 12, or only the coating layer 12.

[0025] Specifically, the material strip 10 is conveyed by the feeding mechanism 1, tensioned by the tensioning device 2, and the first protective film layer 11, the second protective film layer 13 and the coating layer 12 are separated at the tensioning device 2, wherein the first protective film layer 11 is wound up by the first protective film layer receiving mechanism 31, the second protective film layer 13 is wound up by the second protective film layer receiving mechanism 32, and the coating layer 12 is wound up by the coating layer receiving mechanism 33. The above-mentioned receiving mechanisms (see Figure 1 )'s material receiving limit plate is detachable and is fixed by the engagement of the clamping head of the elastic clamping piece with the clamping teeth on the reeling shaft of the material receiving mechanism to facilitate material receiving and waste discharge.

[0026] Continue reading Figures 1 to 5As shown, the die-cutting mechanism specifically includes a die-cutting motor 51, an eccentric wheel 52, a transmission connecting rod 53 and a die-cutting device 54. The die-cutting motor 51 is connected to the eccentric wheel 52. One end of the transmission connecting rod 53 is connected to the eccentric wheel 52, and the other end is connected to the slider of the die-cutting device 54. The slider is slidably connected to the frame in the vertical direction. The die-cutting device 54 also includes an upper die punching part and a lower die part. The upper die punching part is fixedly arranged at the bottom of the slider, and the lower die part is fixedly arranged on the frame at a position corresponding to the upper die punching part. The coating layer 12 passes through between the upper die punching part and the lower die part. When working, the coating layer 12 is in a stopped conveying state, and the die-cutting motor 51 rotates, and the slider drives the upper die punching part to move downward to a specific position through the eccentric wheel 52 and the transmission connecting rod 53. The upper die punching part runs and punches the coating layer 12 to obtain the target product. In specific implementation, different molds can be replaced according to different shapes of target products.

[0027] The feeding mechanism 4 is used to cooperate with the die-cutting mechanism. Specifically, the feeding mechanism 4 includes a stepper motor, a bearing turntable 41 and a suction device. The stepper motor is connected to the bearing turntable 41. The bearing turntable 41 is arranged below the lower mold part. The bearing area of ​​the bearing turntable 41 is provided with an adsorption structure. The adsorption structure includes a cavity arranged inside the bearing turntable 41. The top surface of the cavity is provided with a plurality of air inlets corresponding to the bearing area. The side surface of the cavity is provided with an air outlet connected to the suction device. The suction device positions the target product by negative pressure adsorption of the adsorption structure. The bearing turntable 41 is provided with two symmetrically arranged bearing areas, one of which is located in the receiving area and the other is located in the delivery area. The stepper motor is used to rotate the bearing turntable 41 180° to replace the position of the bearing area, thereby transferring the target product from the receiving area to the delivery area. When used in conjunction with the suction machine, the suction head of the suction machine sucks the target product away in the delivery area. Since the target product is positioned by negative pressure adsorption in the carrying area, the transmission accuracy can be ensured, making the transmission operation more reliable and helping to improve the efficiency of the transportation operation.

[0028] Continue reading Figures 1 to 5 As shown, the tensioning device 2 preferably includes an active first roller and a driven second roller, the second roller is elastically arranged relative to the first roller, the material strip 10 passes between the first roller and the second roller, and is tensioned by the second roller. The frame is preferably also provided with a cutting device 101, the cutting device 101 is arranged at the path of the material strip 10 between the feeding mechanism 1 and the tensioning device 2, and the position of the cutting device 101 can be adjusted along the width direction of the material strip 10, the setting of the cutting device 101 can pre-cut the material strip 10 according to the needs of the target product, so as to facilitate downstream operations. The frame is preferably also provided with a positioning device 102, the positioning device 102 is connected to the guide roller, the guide roller is arranged at the path of the material strip 10 between the feeding mechanism 1 and the tensioning device 2, and the positioning device 102 is used to adjust the position of the guide roller, thereby facilitating the separation of the protective film layer and the coating layer.

[0029] Guide rollers may be provided at the conveying path of the material belt 10 as required. When guide rollers are provided for the coating layer 12, the surface material of the guide rollers is preferably treated with the non-stick coating layer 12, such as spraying non-stick material or providing low-viscosity silicone.

[0030] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

[0031] The above is an exemplary description of the present invention. Obviously, the implementation of the present invention is not limited to the above method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A feeding system for producing FPC, comprising a control device and a material belt, wherein the material belt comprises a first protective film layer, a coating layer and a second protective film layer in sequence, characterized in that: The machine also includes a frame, on which a feeding mechanism connected to the control device, a first protective film layer receiving mechanism, a second protective film layer receiving mechanism, a coating layer receiving mechanism, a die-cutting mechanism and a loading mechanism are provided. A tensioning device is also provided on the frame. The material belt is transmitted by the feeding mechanism, tensioned by the tensioning device, and at the tensioning device, the first protective film layer, the second protective film layer and the coating layer are separated, the first protective film layer is wound up by the first protective film layer receiving mechanism, and the second protective film layer is wound up by the second protective film layer receiving mechanism. The coating layer is provided with a glue layer on both sides, and the coating layer is wound up by the coating layer receiving mechanism. The die-cutting mechanism is provided at the path of the material belt between the tensioning device and the coating layer receiving mechanism, so as to die-cut the coating layer. The die-cutting mechanism includes a die-cutting motor, an eccentric wheel, a transmission connecting rod and a die-cutting device. The die-cutting motor is connected to the eccentric wheel, and one end of the transmission connecting rod is connected to the eccentric wheel. The wheel is connected, and the other end is connected to the slider of the die-cutting device. The die-cutting device also includes an upper die punching part and a lower die part. The upper die punching part is fixedly arranged at the bottom of the slider, and the lower die part is fixedly arranged on the frame corresponding to the upper die punching part. The coating layer passes through between the upper die punching part and the lower die part. The feeding mechanism cooperates with the die-cutting mechanism to receive and output the target product obtained by die-cutting by the die-cutting mechanism. The feeding mechanism includes a stepping motor, a carrying turntable and a suction device. The stepping motor is connected to the carrying turntable. The carrying turntable is arranged below the lower die part. The carrying area of ​​the carrying turntable is provided with an adsorption structure. The suction device positions the target product through negative pressure adsorption of the adsorption structure. Two symmetrically arranged carrying areas are provided on the carrying turntable, wherein one carrying area is located in the receiving area and the other carrying area is located in the delivery area. The stepping motor is used to rotate the carrying turntable 180° to replace the carrying area.

2. A feeding system for producing FPC according to claim 1, characterized in that: The tensioning device comprises an active first roller and a driven second roller. The material strip passes between the first roller and the second roller and is tensioned by the second roller.

3. A feeding system for producing FPC according to claim 1, characterized in that: The frame is also provided with a cutting device, which is arranged at the path of the material belt between the feeding mechanism and the tensioning device, and the position of the cutting device can be adjusted along the width direction of the material belt.

4. A feeding system for producing FPC according to claim 1, characterized in that: The frame is also provided with a positioning device, which is connected to a guide roller. The guide roller is arranged at the path of the material belt between the feeding mechanism and the tensioning device, and the positioning device is used to adjust the position of the guide roller.

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