An up-and-down feeding device for FPC flexible circuit board punching

Abstract

The application is suitable for the technical field of flexible circuit board punching and provides an up-and-down feeding device for FPC flexible circuit board punching, which comprises a rack, a mechanical arm and a material taking jig. The front end of the rack is located outside the punching machine, and the rear end of the rack extends to the inner cavity of the punching machine. The up-and-down feeding device for FPC flexible circuit board punching positions the sheet-shaped raw material on the forming die seat through the liftable positioning pin, specially designs the material taking jig to take the raw material and place it on the forming die seat, and takes and separates the finished product and the waste material after punching and places them respectively, realizes full-automatic operation of feeding and discharging, replaces manual operation with automatic equipment, can work completely automatically after setting the program, does not need manual taking, fixing and demolding and other repetitive labor, greatly reduces the labor intensity of personnel, improves the production efficiency, can continuously and stably ensure the product quality, meets the actual needs of production, and achieves the purpose of improving the efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of flexible circuit board punching, and particularly relates to an up-down feeding device for FPC flexible circuit board punching. BACKGROUND

[0002] Flexible circuit board (FPC) is a kind of highly reliable and excellent flexible printed circuit board made of polyimide or polyester film. By embedding circuit design in a bendable and thin plastic sheet, a large number of precision components can be embedded in a narrow and limited space to form a bendable flexible circuit, which has the characteristics of high wiring density, light weight, thin thickness and good bending property.

[0003] Punching is an important process in the production process of flexible circuit board. During the punching process, the product raw material needs to be sleeved on the positioning pin, and after the punching is completed, the punched product and waste need to be separated from the mold and placed in a tray. The existing flexible circuit board punching process needs to rely on manual operation from material taking, fixing to demolding. Due to the involvement of manual work, the production efficiency is low, which cannot meet the production needs. At the same time, long-time manual operation can cause personnel fatigue, resulting in unstable product quality and quality hidden dangers. SUMMARY

[0004] The application provides an up-down feeding device for FPC flexible circuit board punching, which aims to solve the problems of manual involvement in the existing flexible circuit board punching process, low production efficiency, unstable product quality and quality hidden dangers.

[0005] The application is implemented as follows: an up-down feeding device for FPC flexible circuit board punching, comprising a rack, a mechanical arm and a material taking jig.

[0006] The front end of the rack is located outside the punching machine, the rear end of the rack extends to the inner cavity of the punching machine, the top of the rack is provided with a movable seat moving along the length direction of the rack, a shaped die seat is fixedly connected above the movable seat, a space is formed between the shaped die seat and the top of the movable seat, a shaped groove is formed on the upper surface of the shaped die seat, a movable plate vertically moving is arranged on the top of the movable seat below the shaped die seat, a plurality of positioning pins are vertically fixedly connected to the top of the movable plate, and the positioning pins movably penetrate the top of the shaped die seat and are distributed along the edge of the shaped groove.

[0007] The base part of the mechanical arm is fixedly installed on the side of the front end part of the rack, and the mechanical arm drives the material taking jig to move horizontally and lift vertically.

[0008] The material handling fixture includes a mounting plate that is horizontally fixed to the output end of the robotic arm. The bottom dimension of the mounting plate is adapted to the top dimension of the forming mold base. Multiple first elastic suction nozzles are fixedly connected to the lower surface of the mounting plate at the position corresponding to the forming groove. Multiple telescopic probes and multiple second elastic suction nozzles are vertically fixedly connected to the lower surface of the mounting plate outside the area corresponding to the forming groove.

[0009] Preferably, the top of the frame is provided with a drive mechanism for driving the movable seat to move along its length, and guide rails are provided on both sides of the top of the frame along its length, and the movable seat slides along the guide rails.

[0010] Preferably, a cylinder for driving the movable plate to rise and fall is fixedly connected between the bottom of the movable plate and the top of the movable seat, and multiple cylinders are provided.

[0011] Preferably, positioning holes are provided at the four corners and four sides of the top of the molding die base.

[0012] Preferably, the molding die base has multiple through holes vertically extending through the outer edge of the molding groove for the positioning pin to move.

[0013] Preferably, the top of the mounting plate is provided with two sets of air guide pipes. One set of air guide pipes is connected to the rear end of a plurality of first elastic suction nozzles, and the other set of air guide pipes is connected to the rear end of a plurality of second elastic suction nozzles. The other end of each set of air guide pipes is connected to an air extraction device.

[0014] Preferably, the positions of the telescopic probe and the second elastic suction nozzle are offset from the position of the positioning pin.

[0015] Preferably, the elastic force of the telescopic probe is 2N.

[0016] Advantages

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The FPC flexible circuit board punching and unloading device of the present invention positions the sheet material on the forming mold base through a liftable positioning pin, and a specially designed material picking jig picks up the material and places it on the forming mold base, and picks up and separates the stamped finished product and waste material and places them separately, realizing fully automated operation of loading and unloading. It uses automated equipment to replace manual operation. It can work completely automatically after the program is set. There is no need for repetitive labor such as manual picking, fixing and demolding, which greatly reduces the labor intensity of personnel, improves production efficiency, and can continuously and stably guarantee the production quality, meet the actual production needs, and achieve the purpose of improving efficiency. Attached Figure Description

[0018] Fig. 1 This is a schematic diagram of the structure of the present invention;

[0019] Fig. 2 This is a top view of the molding mold base in this invention;

[0020] Fig. 3 This is a bottom view of the mounting plate in this invention.

[0021] In the diagram: 1-Frame, 2-Robotic arm, 3-Mounting plate, 4-Moving seat, 5-Forming mold base, 6-Cylinder, 7-Moving plate, 8-Positioning pin, 9-Drive mechanism, 10-Guide rail, 11-Forming groove, 12-Through hole, 13-Positioning hole, 14-First elastic suction nozzle, 15-Telescopic probe, 16-Second elastic suction nozzle, 17-Air guide tube. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] Please see Figs. 1-3 The present invention provides a technical solution: a loading and unloading device for punching FPC flexible circuit boards, comprising a frame 1, a robotic arm 2 and a material handling fixture;

[0024] The front end of the frame 1 is located outside the punching machine, and the rear end of the frame 1 extends into the inner cavity of the punching machine. The top of the frame 1 is provided with a movable seat 4 that moves along the length of the frame 1. A forming mold base 5 is fixedly connected above the movable seat 4. A gap is formed between the top of the forming mold base 5 and the movable seat 4. A forming groove 11 is opened on the upper surface of the forming mold base 5. A movable plate 7 that can move in the vertical direction is provided on the top of the movable seat 4 and below the forming mold base 5. A plurality of positioning pins 8 are fixedly connected vertically to the top of the movable plate 7. The positioning pins 8 can movably pass through the top of the forming mold base 5 and are distributed along the edge of the forming groove 11.

[0025] The device is equipped with a raw material storage area, a finished product storage area, and a waste collection area. The raw material storage area is equipped with a raw material storage tray for storing raw materials, and the finished product storage area is equipped with a finished product storage tray for storing finished products.

[0026] The movable seat 4 can move along the length of the frame 1, thereby driving the forming mold base 5 to move along the length of the frame 1. The movable plate 7 can move vertically, thereby driving the positioning pin 8 to move vertically. In the initial state, the movable seat 4 and the forming mold base 5 are located at the front end of the frame 1. The movable plate 7 and the positioning pin 8 move upward. The positioning pin 8 passes through to the top of the forming mold base 5 and is distributed along the edge of the forming groove 11. The robotic arm 2 equipped with a material picking fixture picks up the product material from the material placement tray and places it on the forming mold base 5. The product material is fixed by the positioning pin 8. Then the movable seat 4 moves, driving the forming mold base 5 and the product to move towards the rear end of the frame 1 until they move into the inner cavity of the punching machine to complete the punching. After the whole product material is punched by the punching machine, it is divided into finished products and waste materials along the forming groove 11. The finished products are located inside the forming groove 11, and the waste materials are located outside the forming groove 11.

[0027] The base of the robotic arm 2 is fixedly installed on the side of the front end of the frame 1. The robotic arm 2 drives the material handling fixture to move horizontally and to rise and fall vertically.

[0028] The main body of the robotic arm 2 can rotate and rise relative to the frame 1, thereby driving the material handling fixture to rotate and rise relative to the frame 1. It can move in the area between the raw material placement area, the finished product placement area, the waste collection area and the frame 1. At the same time, the connection between the output end of the robotic arm 2 and the material handling fixture is also equipped with a rotating mechanism, that is, the material handling fixture can rotate relative to the output end of the robotic arm 2.

[0029] The material handling fixture includes a mounting plate 3 that is horizontally fixed to the output end of the robotic arm 2. The bottom dimension of the mounting plate 3 is adapted to the top dimension of the forming mold base 5. Multiple first elastic suction nozzles 14 are fixedly connected to the lower surface of the mounting plate 3 at the position corresponding to the forming groove 11. Multiple telescopic probes 15 and multiple second elastic suction nozzles 16 are vertically fixedly connected to the lower surface of the mounting plate 3 and outside the area corresponding to the forming groove 11.

[0030] In this embodiment, after the punching machine finishes punching the product, the movable seat 4 moves, driving the forming mold base 5 and the product to move towards the front end of the frame 1 until the forming mold base 5 is located outside the punching machine. The movable plate 7 and the positioning pin 8 move downwards, releasing the positioning pin 8 from fixing the product. At this time, the robotic arm 2 works to drive the mounting plate 3 to rotate above the forming mold base 5 and correspond to the forming mold base 5. The robotic arm 2 drives the mounting plate 3 to move downwards and fits against the forming mold base 5. The first elastic suction nozzle 14 picks up the punched finished product from the forming groove 11, and the second elastic suction nozzle 16 picks up the finished product from the forming groove 11. The waste material outside the molding groove 11 is squeezed and contracted by the telescopic probe 15. At this time, the whole product is fixed on the mounting plate 3. The robotic arm 2 drives the mounting plate 3 to rotate above the waste collection area. The second elastic suction nozzle 16 releases the waste material, and the telescopic probe 15 loses the squeezing force and resumes its extension, pushing the waste material to separate the waste material from the finished product. The separated waste material falls into the waste collection area. The robotic arm 2 drives the mounting plate 3 to rotate into the finished product placement area and moves downward. The first elastic suction nozzle 14 releases the finished product, and the finished product falls onto the finished product collection tray, completing the unloading.

[0031] The movement of the robotic arm 2 in driving the material handling fixture and the movement of the movable seat 4 are both controlled by the program, so that they cooperate with each other without interfering with each other.

[0032] Furthermore, a drive mechanism 9 for driving the movable seat 4 is provided on the top of the frame 1 along its length direction, and guide rails 10 are provided on both sides of the top of the frame 1 along its length direction, and the movable seat 4 slides along the guide rails 10.

[0033] In this embodiment, the drive mechanism 9 consists of a motor, a lead screw, and a lead screw sleeve. The lead screw is rotatably arranged laterally along the length of the frame 1. The lead screw sleeve is fitted onto the surface of the lead screw and threadedly connected to the lead screw. The bottom of the movable seat 4 is fixedly connected to the lead screw sleeve. The motor drives the lead screw to rotate, thereby causing the lead screw sleeve to move along the length of the lead screw, and finally causing the movable seat 4 to move along the length of the frame 1. By setting the guide rail 10, the movable seat 4 slides along the guide rail 10, which can guide the movable seat 4 and prevent the movable seat 4 from deviating during the movement.

[0034] Furthermore, a cylinder 6 for driving the movable plate 7 to rise and fall is fixedly connected between the bottom of the movable plate 7 and the top of the movable seat 4, and multiple cylinders 6 are provided.

[0035] In this embodiment, cylinder 6 can drive the movable plate 7 to rise and fall, thereby driving the positioning pin 8 to rise and fall, thus realizing the function of fixing and releasing the product. The solenoid valve opens the upward air inlet of cylinder 6, and air enters cylinder 6 to push the piston to move upward. The piston pushes the movable plate 7 and the positioning pin 8 to move upward. After punching, the solenoid valve closes the upward air inlet of cylinder 6 and opens the downward air inlet of cylinder 6. The gas pushes the piston to move downward, driving the movable plate 7 and the positioning pin 8 to move downward.

[0036] Furthermore, positioning holes 13 are provided at the four corners and four sides of the top of the forming mold base 5.

[0037] In this embodiment, the forming mold base 5 is adapted to the punching machine head. Multiple positioning blocks are provided at the bottom of the punching machine head. The positioning hole 13 on the top of the forming mold base 5 corresponds to the position of the positioning block, so that when the punching machine head moves down to punch, the positioning block is located in the positioning hole 13, which facilitates the positioning of the punching machine head and the forming mold base 5.

[0038] Furthermore, the molding mold base 5 has multiple through holes 12 vertically extending through the outer edge of the molding groove 11 for the positioning pin 8 to move.

[0039] In this embodiment, there are multiple through holes 12, which correspond to the positions of the positioning pins 8, so that when the positioning pins 8 move upward to the top of the forming mold base 5, the positioning pins 8 pass through the through holes 12.

[0040] Furthermore, the top of the mounting plate 3 is provided with two sets of air guide pipes 17. One set of air guide pipes 17 is connected to the rear end of multiple first elastic suction nozzles 14, and the other set of air guide pipes 17 is connected to the rear end of multiple second elastic suction nozzles 16. The other end of each set of air guide pipes 17 is connected to an air extraction device.

[0041] In this embodiment, the first elastic suction nozzle 14 and the second elastic suction nozzle 16 are respectively connected to the corresponding suction device through a set of air guide pipes 17. The first elastic suction nozzle 14 and the second elastic suction nozzle 16 are both made of rubber. When the suction device is working, the first elastic suction nozzle 14 and the second elastic suction nozzle 16 have suction force, which can suck up the finished product or waste material. When the suction device stops working, the first elastic suction nozzle 14 and the second elastic suction nozzle 16 lose suction force and release the finished product or waste material.

[0042] Furthermore, the positions of the telescopic probe 15 and the second elastic suction nozzle 16 are offset from the positions of the positioning pin 8.

[0043] In this embodiment, the telescopic probe 15 and the second elastic suction nozzle 16 will not affect the operation of the positioning pin 8, nor will they fall at the position corresponding to the positioning pin 8, thereby affecting the fixation of the product and waste.

[0044] Furthermore, the elastic force of the telescopic probe 15 is 2N.

[0045] In this embodiment, when the second elastic nozzle 16 sucks air, the telescopic probe 15 can be compressed into the sheet. When the second elastic nozzle 16 stops sucking air, the telescopic probe 15 can extend out. The elastic force is not too large, which would prevent it from shrinking, or the elastic force is too small, which would prevent it from pushing the waste material down.

[0046] The working principle and usage process of this invention: After the invention is installed, in the initial state, the movable seat 4 and the forming mold base 5 are located at the front end of the frame 1. The movable plate 7 and the positioning pin 8 move upward. The positioning pin 8 extends to the top of the forming mold base 5 and is distributed along the edge of the forming groove 11. The robotic arm 2 equipped with a material picking fixture picks up the product material from the material placement tray and places it on the forming mold base 5. The product material is fixed by the positioning pin 8. Then the movable seat 4 moves, driving the forming mold base 5 and the product to move towards the rear end of the frame 1 until they move into the inner cavity of the punching machine to complete the punching. After the entire product material is punched by the punching machine, it is divided into finished products and waste along the forming groove 11. The finished products are located inside the forming groove 11, and the waste is located outside the forming groove 11. After the punching machine finishes punching the product, the movable seat 4 moves, driving the forming mold base 5 and the product to move towards the front end of the frame 1 until the forming mold base 5 is located outside the punching machine. The movable plate 7 and the positioning pin 8 move upward. Pin 8 moves downward, releasing the fixing pin 8 to the product. At this time, the robotic arm 2 drives the mounting plate 3 to rotate above the forming mold base 5 and correspond to the forming mold base 5. The robotic arm 2 drives the mounting plate 3 to move downward and fit into the forming mold base 5. The first elastic suction nozzle 14 picks up the punched finished product in the forming groove 11, and the second elastic suction nozzle 16 picks up the waste material outside the forming groove 11. The telescopic probe 15 contacts the waste material outside the forming groove 11 and is squeezed and contracted. At this time, the whole product is fixed on the mounting plate 3. The robotic arm 2 drives the mounting plate 3 to rotate above the waste material collection area. The second elastic suction nozzle 16 releases the waste material, and the telescopic probe 15 loses the squeezing force and resumes its extension, pushing the waste material to separate the waste material from the finished product. The separated waste material falls into the waste collection area. The robotic arm 2 drives the mounting plate 3 to rotate into the finished product placement area and moves downward. The first elastic suction nozzle 14 releases the finished product, and the finished product falls onto the finished product collection tray, completing the unloading.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A loading and unloading device for punching FPC flexible circuit boards, characterized in that: The utility model relates to a kind of material taking jig and its mechanical arm, including rack (1), mechanical arm (2) and material taking jig; The front end of the rack (1) is located outside the die cutting machine, the rear end of the rack (1) extends to the inner cavity of the die cutting machine, the top of the rack (1) is provided with a movable seat (4) moving along the length direction of the rack (1), the upper portion of the movable seat (4) is fixedly connected with a forming die seat (5), a space is formed between the forming die seat (5) and the top of the movable seat (4), a forming groove (11) is formed on the upper surface of the forming die seat (5), the top of the movable seat (4) and below the forming die seat (5) is provided with a movable plate (7) movable in the vertical direction, a plurality of positioning pins (8) are vertically fixedly connected to the top of the movable plate (7), and the positioning pins (8) are movably penetrated through the top of the forming die seat (5) and distributed along the edge of the forming groove (11); The base portion of the mechanical arm (2) is fixedly installed on the side edge of the front end portion of the rack (1), and the mechanical arm (2) drives the material taking jig to move horizontally and lift vertically; The material taking jig comprises a mounting plate (3) fixedly connected to the output end of the mechanical arm (2), the size of the bottom of the mounting plate (3) is matched with the size of the top of the forming die seat (5), a plurality of first elastic suction nozzles (14) are fixedly connected to the lower surface of the mounting plate (3) at positions corresponding to the forming groove (11), a plurality of telescopic probes (15) and a plurality of second elastic suction nozzles (16) are vertically fixedly connected to the lower surface of the mounting plate (3) outside the corresponding region of the forming groove (11). In the initial state, the movable seat (4) and the forming die seat (5) are located at the front end of the rack (1), the movable plate (7) and the positioning pin (8) move upward, the positioning pin (8) penetrates to the top of the forming die seat (5) and is distributed along the edge of the forming groove (11), the mechanical arm (2) provided with a material taking jig grabs the product raw material from the raw material placing disc and places it on the forming die seat (5), the product raw material is fixed by the positioning pin (8), then the movable seat (4) moves, drives the forming die seat (5) and the product to move to the rear end of the rack (1), until it moves to the inner cavity of the punching machine to complete the punching, the whole product raw material is punched by the punching machine, and is divided into finished products and waste materials along the forming groove (11), the finished products in the forming groove (11) are punched, and the waste materials outside the forming groove (11) are punched, after the punching machine finishes punching the product, the movable seat (4) moves, drives the forming die seat (5) and the product to move to the front end of the rack (1), until the forming die seat (5) is located outside the punching machine, the movable plate (7) and the positioning pin (8) move downward, the fixing of the product by the positioning pin (8) is released, at this time, the mechanical arm (2) works to drive the mounting plate (3) to rotate to the upper side of the forming die seat (5) and correspond to the forming die seat (5), the mechanical arm (2) drives the mounting plate (3) to move downward and abut with the forming die seat (5), the first elastic suction nozzle (14) sucks the finished product punched in the forming groove (11), the second elastic suction nozzle (16) sucks the waste material outside the forming groove (11), the telescopic probe (15) contacts and is extruded by the waste material outside the forming groove (11) and shrinks, at this time, the whole product is fixed on the mounting plate (3), the mechanical arm (2) drives the mounting plate (3) to rotate to the upper side of the waste material collecting area, the second elastic suction nozzle (16) releases the waste material, the telescopic probe (15) restores to stretch and pushes the waste material, so that the waste material and the finished product are separated, the separated waste material falls into the waste material collecting area, the mechanical arm (2) drives the mounting plate (3) to rotate to the finished product placing area and moves downward, the first elastic suction nozzle (14) releases the finished product, the finished product falls on the finished product collecting disc, and the feeding is completed.

2. The feeding and discharging device for FPC flexible circuit board punching according to claim 1, characterized in that: The top of the rack (1) is provided with a driving mechanism (9) for driving the movable seat (4) to move along the length direction thereof, and guide rails (10) are arranged on both sides of the top of the rack (1) along the length direction thereof, and the movable seat (4) slides along the guide rails (10).

3. The feeding and discharging device for FPC flexible circuit board punching according to claim 1, characterized in that: A plurality of air cylinders (6) for driving the movable plate (7) to lift are fixedly connected between the bottom of the movable plate (7) and the top of the movable seat (4).

4. The feeding and discharging device for FPC flexible circuit board punching according to claim 1, characterized in that: Positioning holes (13) are arranged at the four corners and four edges of the top of the forming die seat (5).

5. The feeding and discharging device for FPC flexible circuit board punching according to claim 1, characterized in that: A plurality of through holes (12) for the movement of the positioning pin (8) are vertically and penetratingly arranged on the outer edge of the forming groove (11) of the forming die seat (5).

6. The feeding and discharging device for FPC flexible circuit board punching according to claim 1, characterized in that: The top of the mounting plate (3) is provided with two groups of air guide pipes (17), one group of the air guide pipes (17) is communicated with the rear ends of the first elastic suction nozzles (14), and the other group of the air guide pipes (17) is communicated with the rear ends of the second elastic suction nozzles (16), and the other ends of each group of the air guide pipes (17) are respectively communicated with a suction device.

7. The feeding and discharging device for FPC flexible circuit board punching according to claim 1, characterized in that: The positions of the telescopic probes (15) and the second elastic suction nozzles (16) are staggered with the position of the positioning pin (8).

8. The feeding and discharging device for FPC flexible circuit board punching according to claim 1, characterized in that: The elastic force of the telescopic probe (15) is 2N.

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