A production equipment and processing technology of FFC flexible flat cable

Abstract

The present invention discloses a production device for an FFC flexible flat cable and a processing technology thereof, wherein the production device sequentially comprises an on-line device, an injection molding device, a cooling device, a label printing device, a testing device, a line-straightening device and a line-receiving device, wherein the injection molding device injects an outer sheath on the outer side of a plurality of flat conductors transmitted by the on-line device to obtain an FFC flexible flat cable, the cooling device is located directly below the injection molding device and is used to cool the FFC flexible flat cable after injection molding, the label printing device is used to print a label on the outer sheath on the FFC flexible flat cable, the testing device is used to detect the thickness or broken wire of the FFC flexible flat cable, the line-straightening device is used to arrange the finished FFC flat cable, and the line is retracted by the line-receiving device. The production equipment in the present invention has a simple structure, can realize automated production, has high production efficiency and product yield, reduces the labor intensity of manual labor, saves labor costs, and the produced FFC flexible flat cable has good flexibility and can be folded.

Description

Technical Field

[0001] The present invention relates to the technical field of FFC flexible flat cable manufacturing, and in particular to a production device for an FFC flexible flat cable and a processing technology thereof. Background Art

[0002] As electronic devices become increasingly sophisticated, the structures of computers and televisions are also becoming more sophisticated. FFC flexible cables are used in the aforementioned occasions where signal transmission is required. Users can quickly complete the assembly work with the connector during installation, and through the arrangement of the cable design, the internal configuration space of the computer and television is neat and easy to dissipate heat, or easy to repair and maintain, and can maintain a good transmission effect.

[0003] However, the FFC flexible flat cables in the prior art are all composed of flat conductors and PET films wrapped on the upper and lower sides of the flat conductors. The PET films wrap the flat conductors and arrange the flat conductors in parallel and separated by the PET films, thereby forming a line-wrapped structure. The defects of the FFC flexible flat cables of this structure are: poor flexibility, non-foldability, high production cost, and when the PET film is used for wrapping, the flat conductors often come into contact with each other, requiring manual correction, wasting labor costs, high labor intensity, low production efficiency, and high product defect rate. Summary of the invention

[0004] The purpose of the present invention is to provide a production device for an FFC flexible flat cable and a processing technology thereof. The production device has a simple structure and can realize automated production, with high production efficiency and product yield, while reducing manual labor intensity and saving labor costs. The produced FFC flexible flat cable has the advantages of good flexibility and foldability, thereby solving the problems raised by the above technical background.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a production device for FFC flexible flat cable, the production equipment comprising a line-up device, an injection molding device, a cooling device, a label printing device, a testing device, a line-straightening device and a line-receiving device in sequence, wherein the injection molding device injects an outer sheath onto the outer sides of multiple flat conductors transmitted by the line-up device to obtain an FFC flexible flat cable, the cooling device is located directly below the injection molding device, and is used to cool the FFC flexible flat cable after injection molding, the label printing device is used to print a label on the outer sheath of the FFC flexible flat cable, the testing device is used to detect the thickness or broken wire of the FFC flexible flat cable, the line-straightening device is used to arrange the finished FFC flat cable, and the line-receiving device rewinds the cable.

[0006] Preferably, the upper line device includes a base, a wire rod arranged parallel to the base, and an upper line column arranged between the base and the wire rod, the upper line column is arranged at an angle of 75 degrees to the base, and a plurality of upper line rollers are arranged on the upper line column, and the plurality of upper line rollers are evenly distributed on the upper line column, and a wire rod is arranged on the wire rod.

[0007] Preferably, a plurality of the upper thread rollers are rotatably connected to the upper thread column, and a rolled flat conductor is placed on each of the upper thread rollers, and the thread ends of the flat conductors are pulled to the injection molding device by the wire pulling wheel.

[0008] Preferably, the injection molding device is a horizontal injection molding machine, which includes an injection molding body, an injection mold arranged at the front end of the injection molding body, and a feed port arranged at the upper end of the injection molding body, the feed port is connected to the injection mold, a flat conductor molding chamber is opened in the middle of the injection mold, and a wire outlet is arranged on the lower end surface of the flat conductor molding chamber, and the width and length of the wire outlet are respectively the same as the thickness and width of the FFC soft flat cable.

[0009] Preferably, the cooling device is a cooling water trough, which includes a trough body, wherein the trough body is filled with cooling water, and the trough body is also provided with a first traction roller, and a second traction roller is provided on one side of the trough body, and the second traction roller is arranged parallel to the first traction roller.

[0010] Preferably, the label printing device is a wheel printing machine, which includes a frame, a printing plate is arranged on the frame, a pressing wheel is arranged above the printing plate, an ink cartridge for storing ink is arranged above the pressing wheel, and the ink cartridge is used to provide pressing ink to the pressing wheel, and a left traction wheel group and a right traction wheel group are respectively arranged on the left and right sides of the printing plate, and the left traction wheel group and the right traction wheel group are symmetrically distributed about the central axis of the printing plate.

[0011] Preferably, the testing device is a high voltage spark detector, and the testing device is spaced apart from the label printing device.

[0012] Preferably, the line straightening device includes a line straightening frame and a front line straightening traction wheel, a line straightening reversing wheel, a line straightening deflection correction wheel group and a rear line straightening traction wheel which are arranged on the line straightening frame from left to right in sequence, the front line straightening traction wheel and the line straightening deflection correction wheel group are located on the same horizontal plane, the line straightening reversing wheel is located at a position lower and between the front line straightening traction wheel and the line straightening deflection correction wheel group, a plurality of rear line straightening traction wheels are provided, the plurality of rear line straightening traction wheels are arranged side by side, and the plurality of rear line straightening traction wheels are arranged at intervals from the line straightening deflection correction wheel group, and the rear line straightening traction wheel is located at an upper rear side of the line straightening deflection correction wheel group.

[0013] Preferably, the wire taking-up device comprises a wire taking-up frame and a wire taking-up traction wheel and a wire taking-up wheel arranged on the wire taking-up frame. A driving motor is arranged on one side of the wire taking-up frame, and an output end of the driving motor is rotatably connected to the wire taking-up wheel through a belt.

[0014] The present invention also provides a processing technology for a production device of an FFC flexible flat cable, the processing technology comprising the following steps: Step 1: selecting a plurality of rolls of flat conductors according to the specifications of the FFC flexible flat cable and placing them on a line-up roller on a line-up device, and the ends of the plurality of rolls of the flat conductors are pulled side by side by a pull-up wheel to an injection molding device;

[0015] Step 2: Add PVC pellets into the feed port of the injection molding device, heat the PVC pellets at 160°C-170°C to melt the PVC pellets, and the melted PVC material enters the flat conductor molding chamber of the injection mold. The injection mold forms an outer layer on the outside of the flat conductor, and the outer layer isolates and insulates each flat conductor;

[0016] Step 3: The first traction roller on the cooling device tractions the flat conductor with the outer layer and cools it in the water tank body for 10 seconds;

[0017] Step 4: The embossing wheel on the label printing device cooperates with the printing plate to emboss the label on the cooled outer layer. At this time, the FFC flexible flat cable is formed, and the qualified and unqualified FFC flexible flat cables are tested by the testing device. The unqualified FFC flexible flat cables are manually removed;

[0018] Step 5: The qualified FFC flexible flat cable is sorted by the line-straightening device to make the FFC flexible flat cable smooth, and finally the drive motor drives the take-up wheel to collect the finished FFC flexible flat cable.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The production equipment of the FFC flexible flat cable of the present invention is composed of a line-up device, an injection molding device, a cooling device, a label printing device, a testing device, a line-straightening device and a line-receiving device which are arranged in sequence, so as to realize the automatic production of the FFC flexible flat cable, have a high degree of automation, improve production efficiency, save labor costs, reduce labor intensity, and have a high product yield.

[0021] 2. The injection molding device in the present invention injects a layer of PVC outer layer on the outside of the flat conductor to obtain an FFC soft flat cable. Compared with the traditional method of coating the flat conductor with PET film on both sides, it has better toughness, is foldable, has a wider range of uses, and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a block diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the online device of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the injection molding device of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the cooling device of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the label printing device of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the whole line device of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the take-up frame of the present invention.

[0029] The reference numerals and names in the figures are as follows:

[0030] 1. On-line device; 11. Base; 12. Wire rod; 13. On-line column; 14. On-line roller; 15. Wire pulley; 2. Injection molding device; 21. Injection molding machine body; 22. Injection mold; 23. Feed inlet; 24. Flat conductor molding chamber; 25. Wire outlet; 3. Cooling device; 31. Water tank body; 32. First traction roller; 33. Second traction roller; 4. Label printing device; 41 , frame; 42, printing plate; 43, impression wheel; 44, ink cartridge; 45, left traction wheel group; 46, right traction wheel group; 5, testing device; 6, line straightening device; 61, line straightening frame; 62, front line straightening traction wheel; 63, line straightening reversing wheel; 64, line straightening correction wheel group; 65, rear line straightening traction wheel; 7, take-up device; 71, take-up frame; 72, take-up traction wheel; 73, take-up wheel; 74, driving motor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1An embodiment of the present invention provides: a production device for an FFC flexible flat cable, which comprises a line-up device 1, an injection molding device 2, a cooling device 3, a label printing device 4, a testing device 5, a line-straightening device 6 and a line-receiving device 7 in sequence, wherein the injection molding device 2 injects an outer sheath on the outer side of multiple flat conductors transmitted by the line-up device 1 to obtain an FFC flexible flat cable, the cooling device 3 is located directly below the injection molding device 2, and is used to cool the FFC flexible flat cable after injection molding, the label printing device 4 is used to print a label on the outer sheath on the FFC flexible flat cable, the testing device 5 is used to detect the thickness or broken wire of the FFC flexible flat cable, the line-straightening device 6 is used to arrange the finished FFC flat cable, and the line is retracted by the line-receiving device 7.

[0033] In this embodiment, the test device 5 is preferably a high-voltage spark detection machine, which has been used in the Chinese patent application number CN201621437170.7 for cable detection, to eliminate defective products and improve product quality. Therefore, it can be used as a prior art in this patent, and its structure will not be described in detail in this patent. The test device 5 is spaced apart from the label printing device 4. In a specific implementation, the distance between the test device 5 and the label printing device 4 is greater than or equal to 2 meters, which can effectively ensure that the printed label ink can dry up.

[0034] See also Figure 2 The thread-up device 1 in the figure includes a base 11, a thread-up rod 12 arranged parallel to the base 11, and a thread-up column 13 arranged between the base 11 and the thread-up rod 12. The thread-up column 13 is arranged at an angle of 75 degrees to the base 11, and a plurality of thread-up rollers 14 are arranged on the thread-up column 13. The plurality of thread-up rollers 14 are evenly distributed on the thread-up column 13, and a thread-up wheel 15 is arranged on the thread-up rod 12.

[0035] Specifically, a plurality of the upper wire rollers 14 are rotatably connected to the upper wire column 13 , and a rolled flat conductor is placed on each of the upper wire rollers 14 , and the ends of the flat conductors are pulled to the injection molding device 2 by the wire pulling wheel 15 .

[0036] See also Figure 3The injection molding device 2 in the figure is a horizontal injection molding machine, which includes an injection molding body 21, an injection mold 22 arranged at the front end of the injection molding body 21, and a feed port 23 arranged at the upper end of the injection molding body 21. The feed port 23 is connected to the injection mold 22. A flat conductor molding chamber 24 is opened in the middle of the injection mold 22, and an outlet 25 is arranged on the lower end surface of the flat conductor molding chamber 24. The width and length of the outlet 25 are respectively the same as the thickness and width of the FFC soft flat cable. When the flat conductor passes through the flat conductor molding chamber 24, the flat conductor is formed into an outer sheath in the flat conductor molding chamber 24.

[0037] See also Figure 4 The cooling device 3 in the figure is a cooling water trough, which includes a trough body 31, in which cooling water is poured, and a first traction roller 32 is also arranged in the trough body 31, and a second traction roller 33 is arranged on one side of the trough body 31, and the second traction roller 33 is arranged parallel to the first traction roller 32. The flat conductor with the injection molded outer layer vertically enters the cooling water for cooling, and is then pulled out of the cooling water surface by the first traction roller 32, and finally is pulled to the next process by the second traction roller 33.

[0038] See also Figure 5 The label printing device 4 in the figure is a wheel printing machine, which includes a frame 41, a printing plate 42 is arranged on the frame 41, a pressing wheel 43 is arranged above the printing plate 42, an ink cartridge 44 for storing ink is arranged above the pressing wheel 43, and the ink cartridge 44 is used to provide pressing ink to the pressing wheel 43, and a left traction wheel group 45 and a right traction wheel group 46 are respectively arranged on the left and right sides of the printing plate 42, and the left traction wheel group 45 and the right traction wheel group 46 are symmetrically distributed with the central axis of the printing plate 42. When printing labels, the left traction wheel group 45 and the right traction wheel group 46 are used to press the FFC soft cable to prevent it from shaking.

[0039] See also Figure 6 The line straightening device 6 in the figure includes a line straightening frame 61 and a front line straightening traction wheel 62, a line straightening reversing wheel 63, a line straightening deflection correction wheel group 64 and a rear line straightening traction wheel 65 which are arranged on the line straightening frame 61 from left to right in sequence. The front line straightening traction wheel 62 and the line straightening deflection correction wheel group 64 are located on the same horizontal plane, the line straightening reversing wheel 63 is located at a position lower between the front line straightening traction wheel 62 and the line straightening deflection correction wheel group 64, and a plurality of rear line straightening traction wheels 65 are provided, and a plurality of rear line straightening traction wheels 65 are arranged side by side, and a plurality of rear line straightening traction wheels 65 are arranged at intervals from the line straightening deflection correction wheel group 64, and the rear line straightening traction wheel 65 is located at a rear upper position of the line straightening deflection correction wheel group 64, and the deflection correction wheel group corrects the twisted or displaced FFC soft flat cable to achieve the purpose of arranging the wires.

[0040] See also Figure 7 The wire-taking device 7 in the figure includes a wire-taking frame 71 and a wire-taking traction wheel 72 and a wire-taking wheel 73 arranged on the wire-taking frame 71. A driving motor 74 is arranged on one side of the wire-taking frame 71. The output end of the driving motor 74 is rotatably connected to the wire-taking wheel 73 through a belt. During specific operation, the driving motor 74 drives the rollers or traction wheels on various devices of the entire production equipment to work.

[0041] In summary, the production equipment of the present invention has a simple structure, can realize automated production, has high production efficiency and product yield, reduces manual labor intensity and saves labor costs, and the produced FFC flexible flat cable has good flexibility and is foldable, which is better than the traditional method of coating PET film on both sides of the flat conductor.

[0042] The present invention also provides a processing technology for a production device of an FFC flexible flat cable, the processing technology comprising the following steps:

[0043] Step 1: Select multiple rolls of flat conductors according to the specifications of the FFC flexible flat cable and place them on the thread-up roller 14 on the thread-up device 1. The ends of the multiple rolls of the flat conductors are pulled side by side by the thread-pulling wheel 15 to the injection molding device 2;

[0044] Step 2: Add PVC pellets into the feed port 23 of the injection molding device 2, and heat the PVC pellets at 160°C-170°C by the injection molding body 21 to melt the PVC pellets. The melted PVC material enters the flat conductor molding chamber 24 of the injection mold 22, and the injection mold 22 forms an outer layer on the outside of the flat conductor, and the outer layer isolates and insulates each flat conductor;

[0045] Step 3: The first traction roller 32 on the cooling device 3 tractions the flat conductor with the outer coating and cools it in the water tank body 31 for 10 seconds;

[0046] Step 4: The embossing wheel 43 on the label printing device 4 cooperates with the printing plate 42 to emboss the label on the cooled outer layer. At this time, the FFC flexible flat cable is formed, and the test device 5 is used to test whether the FFC flexible flat cable is qualified or unqualified. The unqualified FFC flexible flat cable is manually removed;

[0047] Step 5: The qualified FFC flexible flat cable is sorted by the line straightening device 6 to make the FFC flexible flat cable smooth, and finally the drive motor 74 drives the take-up wheel 73 to collect the finished FFC flexible flat cable.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A production equipment for FFC flexible flat cable, characterized by: The production equipment comprises, in sequence, an on-line device (1), an injection molding device (2), a cooling device (3), a label printing device (4), a testing device (5), a line tidying device (6) and a line taking-up device (7), wherein the injection molding device (2) injects an outer sheath onto the outer sides of a plurality of flat conductors transmitted by the on-line device (1) to obtain an FFC flexible flat cable, the cooling device (3) is located directly below the injection molding device (2) and is used to cool the FFC flexible flat cable after injection molding, the label printing device (4) is used to print a label on the outer sheath of the FFC flexible flat cable, and the testing device (5) is used to The invention is used to detect the thickness or broken wire of an FFC flexible flat cable. The line arranging device (6) is used to arrange the finished FFC flat cable, and the line is taken up by the line taking-up device (7). The line taking-up device (1) comprises a base (11), a wire drawing rod (12) arranged parallel to the base (11), and a line taking-up column (13) arranged between the base (11) and the wire drawing rod (12). The line taking-up column (13) is arranged at an angle of 75 degrees to the base (11), and a plurality of line taking-up rollers (14) are arranged on the line taking-up column (13). The plurality of line taking-up rollers (14) are evenly distributed on the line taking-up column (13). The wire drawing rod (12) is arranged parallel to the base (11). 12) is provided with a pulley (15); the injection molding device (2) is a horizontal injection molding machine, comprising an injection molding machine body (21), an injection mold (22) arranged at the front end of the injection molding machine body (21), and a feed port (23) arranged at the upper end of the injection molding machine body (21), the feed port (23) is connected to the injection mold (22), a flat conductor molding chamber (24) is provided in the middle of the injection mold (22), and a wire outlet (25) is provided on the lower end surface of the flat conductor molding chamber (24), and the width and length of the wire outlet (25) are respectively corresponding to the thickness and width of the FFC soft flat cable. The values ​​of the degrees are the same; the label printing device (4) is a wheel printing machine, comprising a frame (41), a printing plate (42) is arranged on the frame (41), a pressing wheel (43) is arranged above the printing plate (42), an ink cartridge (44) for storing ink is arranged above the pressing wheel (43), the ink cartridge (44) is used to provide pressing ink to the pressing wheel (43), a left traction wheel group (45) and a right traction wheel group (46) are arranged on the left and right sides of the printing plate (42), respectively, and the left traction wheel group (45) and the right traction wheel group (46) are symmetrically distributed about the central axis of the printing plate (42);The line straightening device (6) comprises a line straightening frame (61), and a front line straightening traction wheel (62), a line straightening reversing wheel (63), a line straightening deflection correction wheel group (64), and a rear line straightening traction wheel (65) which are arranged on the line straightening frame (61) from left to right in sequence, wherein the front line straightening traction wheel (62) and the line straightening deflection correction wheel group (64) are located on the same horizontal plane, the line straightening reversing wheel (63) is located at a position below the middle of the front line straightening traction wheel (62) and the line straightening deflection correction wheel group (64), and a plurality of rear line straightening traction wheels (65) are arranged, and the plurality of rear line straightening traction wheels (65) are arranged on the rear line straightening frame (61). The traction wheels (65) are arranged side by side, and the plurality of rear straightening traction wheels (65) are arranged at intervals from the straightening deflection correction wheel group (64), and the rear straightening traction wheels (65) are located at a rear upper position of the straightening deflection correction wheel group (64); the wire take-up device (7) comprises a wire take-up frame (71), and a wire take-up traction wheel (72) and a wire take-up wheel (73) arranged on the wire take-up frame (71); a driving motor (74) is arranged on one side of the wire take-up frame (71), and an output end of the driving motor (74) is rotationally connected to the wire take-up wheel (73) via a belt. ; 2. The FFC flexible flat cable production equipment according to claim 1, characterized in that: A plurality of the upper thread rollers (14) are rotatably connected to the upper thread column (13), and a rolled flat conductor is placed on each of the upper thread rollers (14). The thread ends of the flat conductors are pulled by the pulling wheel (15) to the injection molding device (2).

3. The FFC flexible flat cable production equipment according to claim 1, characterized in that: The cooling device (3) is a cooling water tank, comprising a water tank body (31), wherein cooling water is poured into the water tank body (31), and a first traction roller (32) is also arranged in the water tank body (31), and a second traction roller (33) is arranged on one side of the water tank body (31), wherein the second traction roller (33) is arranged in parallel with the first traction roller (32).

4. The FFC flexible flat cable production equipment according to claim 1, characterized in that: The testing device (5) is a high-voltage spark detector, and the testing device (5) and the label printing device (4) are arranged at a distance.

5. The processing technology of the FFC flexible flat cable production equipment according to any one of claims 1 to 4, characterized in that: The method comprises the following steps: Step 1: selecting a plurality of rolls of flat conductors according to the specifications of the FFC flexible flat cable and placing them on a thread-up roller (14) on a thread-up device (1); the ends of the plurality of rolls of the flat conductors are pulled side by side by a thread-pulling wheel (15) to an injection molding device (2); Step 2: PVC granules are added into the feed port (23) of the injection molding device (2), and the injection molding machine (21) heats the PVC granules at a high temperature of 160°C-170°C to melt the PVC granules. The melted PVC material enters the flat conductor molding chamber (24) of the injection mold (22), and the injection mold (22) molds an outer layer on the outside of the flat conductor, and the outer layer isolates and insulates each flat conductor; Step 3: The first traction roller (32) on the cooling device (3) tractions the flat conductor with the outer coating, and cools it in the water tank body (31) for 10 seconds; Step 4: The embossing wheel (43) on the label printing device (4) cooperates with the printing plate (42) to emboss the label on the cooled outer layer. At this time, the FFC flexible flat cable is formed, and the FFC flexible flat cable is tested by the testing device (5) to determine whether it is qualified or unqualified. The unqualified FFC flexible flat cable is manually removed. Step 5: The qualified FFC flexible flat cable is sorted by the line sorting device (6) to make the FFC flexible flat cable smooth, and finally the drive motor (74) drives the take-up wheel (73) to collect the finished FFC flexible flat cable.

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