FPC circuit welding waste collection device and welding process

Abstract

The present application relates to the technical field of FPC processing, and provides an FPC line welding waste collection device and a welding process, which includes an FPC board body and a fuse, the two ends of the fuse are respectively connected to the FPC board body, the FPC board body is provided with a welding disk, and the welding disk is provided at a position close to the end of the fuse; when the fuse breaks, the two welding disks between the head and the tail are soldered by a soldering machine; the waste collection device is used to collect the waste generated during the soldering process of the FPC board body, and the waste collection device includes a material box, a feed hopper, a filter screen and a drive mechanism, the feed hopper is connected to the material box; the filter screen is located below the feed hopper, and is used to screen the welding waste; the drive mechanism is connected to the filter screen, and is used to control the filter screen to move back and forth in the horizontal direction and the vertical direction. The present application has the effect of improving the utilization of FPC.

Description

Technical Field

[0001] The present application relates to the technical field of FPC processing, and in particular to an FPC circuit welding waste collection device and a welding process. Background Art

[0002] Flexible circuit board, usually referred to as FPC, is a printed circuit board made of polyimide or polyester film material. This circuit board is popular because of its high reliability and excellent flexibility. The characteristic of FPC is that it has a very high wiring density and can realize complex circuit design. At the same time, it also has light weight, thin thickness and excellent bending performance. These characteristics make FPC widely used in many electronic devices, especially in those occasions with strict requirements on space and weight.

[0003] In the new energy vehicle industry, the application of flexible printed circuit boards (FPCs) has become increasingly common. FPC is a highly flexible and bendable circuit board that plays a vital role in the electronic control system of new energy vehicles. However, these FPC boards are usually equipped with fuses, which cut off the current when an abnormality occurs in the circuit to protect the circuit from damage. However, in actual use, since the location of the fuse often bears the largest current, the resistance of these areas is also relatively high, which can easily lead to burning and breaking at the fuse location. Once this happens, it will affect the normal function of the entire FPC board.

[0004] At present, when faced with the problem of broken fuses on FPCs, the common solution is to scrap the damaged FPC as a whole. Although this approach is simple and direct, it is undoubtedly a waste of resources. Because except for the fuse position, the rest of the FPC may still be intact and have the potential to continue to be used. Therefore, this treatment method not only increases production costs, but also reduces the utilization efficiency of FPC. In view of this, the industry urgently needs to find a more efficient and economical solution to improve the use value of FPC, reduce resource waste, and promote the new energy vehicle industry to develop in a more sustainable direction. Summary of the invention

[0005] In order to improve the utilization of FPC, the present application provides an FPC line welding waste collection device.

[0006] In the first aspect, the present application provides an FPC line welding waste collection device that adopts the following technical solution: An FPC line welding waste collection device comprises an FPC board body and a fuse, wherein the two ends of the fuse are respectively connected to the FPC board body, and the fuse is arranged in parallel in a plurality of strips; a welding plate is arranged on the FPC board body, and the welding plate is arranged at a position close to the end of the fuse; when the fuse is broken, the two welding plates between the head and the tail are soldered by a soldering machine; The waste collection device is used to collect waste generated during the soldering process of the FPC board body. The waste collection device includes a material box, a feed hopper, a filter screen and a driving mechanism. The top of the material box is provided with an opening. The feed hopper is provided at the top of the material box and is connected to the material box. The filter screen is provided in the material box and is located below the feed hopper. The filter screen is used to screen the welding waste. The driving mechanism is connected to the filter screen and is used to control the filter screen to reciprocate in the horizontal direction and the vertical direction. The driving mechanism comprises a support rod, a slide seat, a first spring, a first wedge block, a first driving assembly, a second spring, a second wedge block and a second driving assembly. The support rod is horizontally arranged and lifted and lowered along the height direction of the material box. The slide seat is slidably connected to the support rod, and the filter screen is arranged on the slide seat. The inner wall of the material box is provided with a first strip groove and a second strip groove in the height direction, the first spring and the first wedge block are both arranged in the first strip groove, the two ends of the first spring are respectively connected to the material box and the first wedge block, the first spring is located above the first wedge block, the first wedge block is slidably arranged in the first strip groove, and the wedge surface of the first wedge block faces the filter screen; the first protrusion is connected to one end of the sliding seat close to the first wedge block, and the first driving component is used to hit the first protrusion and the first wedge block; The second strip groove is arranged opposite to the first strip groove, the second spring and the second wedge block are both arranged in the second strip groove, the two ends of the second spring are respectively connected to the material box and the second wedge block, the second spring is located below the second wedge block, and the second wedge block is slidably arranged in the second strip groove; the end of the slide seat close to the second wedge block is connected to a second convex block, and the second driving assembly is used to hit the second convex block and the second wedge block; wherein, the two ends of the support rod are respectively connected to the first wedge block and the second wedge block; The support rod is also sleeved with a return spring, and the two ends of the return spring are respectively connected to the end of the support rod and the end of the slide seat.

[0007] By adopting the above technical solution, the waste generated by the FPC board body during the soldering process can be poured into the feed hopper, and the waste will fall into the filter screen under the action of gravity. The filter screen can screen the welding waste so as to better separate the welding rod and the welding slag. In order to improve the screening effect of the filter screen, the drive mechanism can be operated, and the drive mechanism drives the filter screen to move horizontally and vertically, thereby driving the filter screen to shake and vibrate, accelerating the screening of the waste.

[0008] When screening materials, the first drive assembly and the second drive assembly are operated, the first drive assembly can hit the first bump, and the first bump will move linearly along the support rod under the external force; the second drive assembly can hit the second bump and drive the second bump to move horizontally, and the second bump and the first bump move in the same direction, thereby driving the entire slide and the filter screen to move horizontally along the support rod. At this time, the reset spring on the support rod will be deformed.

[0009] When the first driving assembly hits the first protrusion and gradually approaches the first wedge block, the first wedge block will move vertically upward due to the force of the first driving assembly; when the second driving assembly hits the second protrusion and gradually approaches the second wedge block, the second wedge block will move vertically upward due to the force of the second driving assembly. Since the two ends of the support rod are respectively connected to the first wedge block and the second wedge block, the vertical movement of the entire filter screen is realized.

[0010] After the first driving assembly removes the force acting on the first protrusion and the second driving assembly removes the force acting on the second protrusion, the reset spring on the support rod will drive the slide to return to the initial position. After the first driving assembly removes the force acting on the first wedge block and the second driving assembly removes the force acting on the second wedge block, the first spring will control the first wedge block to reset and the second spring will control the second wedge block to reset, thereby achieving periodic lateral and vertical movement of the filter screen.

[0011] Preferably, the first driving assembly includes a first motor and a first cam, the first cam is connected to the material box in a clockwise rotation, the first motor is connected to the first cam and is used to control the rotation of the first cam, and the side with the largest diameter of the first cam is used to push the first protrusion to move laterally on the support rod, and push the first wedge block to move vertically upward in the first strip groove.

[0012] By adopting the above technical solution, the first motor can drive the first cam to rotate, and the rotation of the first cam will hit the first protrusion and the first wedge block in turn, so that the first protrusion moves horizontally to the left on the support rod, and the first wedge block moves vertically upward in the first strip groove.

[0013] Preferably, the second driving assembly includes a second motor and a second cam, the second cam is connected to the material box in a counterclockwise rotation, the second motor is connected to the second cam and is used to control the rotation of the second cam, the side with the largest diameter of the second cam is used to push the second protrusion to move laterally on the support rod, and push the second wedge block to move vertically upward in the second strip groove, and the second protrusion and the first protrusion have the same moving direction.

[0014] By adopting the above technical solution, the second motor can drive the second cam to rotate, and the rotation direction of the second cam is opposite to that of the first cam. The second cam will hit the second convex block and the second wedge block in sequence, so that the second convex block moves horizontally to the left on the support rod, and the second wedge block moves vertically upward in the second strip groove. The movement directions of the second convex block and the first convex block are the same, which can play a synergistic role in the movement of the slide seat and improve the effect of the lateral movement of the slide seat and the filter screen.

[0015] Preferably, the first wedge block and the second wedge block are both connected with universal balls, the first wedge block is connected to the first strip groove by the universal balls, and the second wedge block is connected to the second strip groove by the universal balls.

[0016] By adopting the above technical solution, when the first wedge-shaped block moves in the first strip groove, the existence of the universal ball can reduce the friction force of the first wedge-shaped block when moving, and improve the smoothness of the movement of the first wedge-shaped block and the second wedge-shaped block. Similarly, the universal ball can also reduce the friction force of the second wedge-shaped block when moving in the second strip groove, and improve the smoothness of the movement of the second wedge-shaped block.

[0017] Preferably, a plurality of hooks are connected to the inner wall of the material box, each of the hooks is in the same plane and is located below the filter screen, and the hooks are used to hang the cloth bags.

[0018] By adopting the above technical solution, the hook can be used to hang the cloth bag so that the opening of the cloth bag is open to better receive the waste falling from the filter screen.

[0019] Preferably, the feed hopper is in the shape of an isosceles trapezoid, and the opening of the feed hopper gradually increases in a direction approaching the filter screen.

[0020] Preferably, it also includes a lifting plate, a lifting cylinder and a rotating motor, wherein the lifting plate is arranged at the minimum opening of the feed hopper and is movably arranged in the vertical direction; the rotating motor is arranged on the piston rod of the lifting cylinder, and the output shaft of the rotating motor is connected to the lifting plate and is used to control the rotation of the lifting plate, and the rotating shaft of the lifting plate is along the horizontal direction; the lifting cylinder is used to control the lifting and lowering of the rotating motor and the lifting plate.

[0021] By adopting the above technical solution, when the FPC board body needs to be welded, the FPC board body can be placed on the lifting plate, which serves as a supporting plane and a welding plane, and the waste generated during the welding process will be temporarily piled on the lifting plate.

[0022] After welding, the FPC board body is taken out, and then the lifting cylinder is operated to control the lifting plate to move vertically downward. Since the opening of the feed port gradually increases in the direction close to the filter screen, and the area of ​​the lifting plate is the minimum cross-section of the feed hopper, there will be a gap between the lifting plate and the inside of the feed hopper. Then the rotating motor is operated, which drives the lifting plate to flip, so that the waste on the lifting plate is poured into the filter screen.

[0023] Preferably, a limiting plate is provided on the peripheral side of the lifting plate, and the limiting plate and the lifting plate form a limiting groove.

[0024] By adopting the above technical solution, the limiting plate can block the waste on the surface of the lifting plate, reducing the possibility of the waste being scattered to other locations.

[0025] Preferably, a visual window is provided on the peripheral side of the material box.

[0026] By adopting the above technical solution, the design of the viewing window can facilitate the operator to observe the situation inside the material box without opening the material box.

[0027] In a second aspect, the present application also provides an FPC line welding process, using a waste collection device having all the above structures, comprising the following steps: S1. After the fuse breaks, place the FPC board body on the soldering machine; S2. The operator runs the soldering machine to solder the soldering plates between the head and the tail together so that the circuit can be connected normally; S3. The operator opens the door of the material box and installs the cloth bag at the bottom of the filter screen; then closes the door, and sweeps the welding waste generated during the welding process into the feed hopper. The waste will fall into the filter screen under the action of gravity for screening of welding rods and welding slag. The cloth bag is used to receive the welding slag falling from the filter screen; S4. Then the operator operates the driving mechanism, which controls the filter screen to move horizontally and vertically, thereby causing the filter screen to shake or vibrate, accelerating the screening so that the welding slag can fall off better; S5. After the screening is completed, the operator opens the door of the material box and takes out the bags for recycling and subsequent processing.

[0028] In summary, the present application includes at least one of the following beneficial technical effects: (1) By setting corresponding welding pads on the main body of the FPC board, when the fuse breaks, the welding pads between the head and the tail can be welded together so that the circuit can be connected normally, preventing the entire FPC from being scrapped and improving the utilization rate of the FPC.

[0029] (2) By setting up a filter screen and a drive mechanism, the waste generated during the soldering process of the FPC board body can be put into the feed hopper. Under the action of gravity, these wastes will naturally fall onto the filter screen, which is responsible for screening these welding wastes so as to more effectively separate the welding rod and welding slag. In order to improve the screening efficiency of the filter screen, the drive mechanism can be started, which causes the filter screen to move horizontally and vertically, thereby causing the filter screen to shake and vibrate, thereby accelerating the screening process of the waste.

[0030] (3) By setting up a lifting plate, a lifting cylinder and a rotating motor, the FPC board body should be placed on the lifting plate when welding the FPC board body. After the welding process is completed, the FPC board body is removed, and then the lifting cylinder is started to make the lifting plate drop vertically. Then, the rotating motor is activated, which drives the lifting plate to flip, thereby dumping the waste on the board into the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the FPC board in the embodiment of the present application; Figure 2 is a cross-sectional schematic diagram of the overall structure of the waste collection device in an embodiment of the present application; Figure 3 yes Figure 2 A schematic diagram of the structure of the waste collection equipment from another perspective; Figure 4 is a schematic diagram of the structure of the driving mechanism in the embodiment of the present application; Figure 5 is a structural schematic diagram of the driving mechanism from another perspective in an embodiment of the present application; Figure 6 It is a schematic diagram of the overall structure of the waste collection device in the embodiment of the present application; Figure 7 It is a schematic diagram of the structure of the waste collection device in the embodiment of the present application in which the material box is omitted.

[0032] Figure numerals: 1. FPC board body; 2. fuse; 3. welding plate; 4. material box; 5. feed hopper; 6. filter screen; 7. driving mechanism; 71. support rod; 72. slide seat; 73. first spring; 74. first wedge block; 75. first driving assembly; 751. first motor; 752. first cam; 76. second spring; 77. second wedge block; 78. second driving assembly; 781. second motor; 782. second cam; 8. first strip groove; 9. second strip groove; 10. reset spring; 11. hook; 12. lifting plate; 13. lifting cylinder; 14. rotating motor; 15. limit plate; 16. limit groove; 17. first protrusion; 18. second protrusion. DETAILED DESCRIPTION

[0033] The technical solution of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.

[0034] In the description of the present application, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any one or more embodiments or examples in a suitable manner.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection; it can also be a detachable connection; or integrated; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0037] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples shown in the present application.

[0038] The present application embodiment discloses a FPC circuit welding waste collection device. Figure 1 The FPC includes an FPC board body 1 and a fuse 2. The two ends of the fuse 2 are respectively connected to the FPC board body 1. Two fuses 2 are arranged in parallel. The fuse 2 is an electronic component, and its interior is composed of a thin metal wire or foil. When the current exceeds the rated current of the fuse 2, the metal wire or foil inside the fuse 2 will be heated by the heat of electric energy, thereby melting and burning, cutting off the current in the circuit to protect the components of the FPC board body 1 from damage due to overcurrent. There are four welding pads 3 on the FPC board body 1, and the welding pads 3 are close to the two ends of the fuse 2. When the fuse 2 breaks, the two welding pads 3 between the head and the tail are soldered by a soldering machine so that the FPC circuit can be connected normally.

[0039] Reference Figure 2 and Figure 3 The waste collection device is used to collect waste generated during the soldering process of the FPC board body 1, including a material box 4, a feed hopper 5, a filter screen 6 and a driving mechanism 7. The material box 4 is rectangular, and an opening is provided at the top of the material box 4. The feed hopper 5 is fixedly connected to the top of the material box 4 and communicated with the material box 4. The feed hopper 5 is used to supply welding waste into the material box 4. The filter screen 6 is installed in the material box 4 and is located below the feed hopper 5. The filter screen 6 is in the shape of a uncovered rectangular parallelepiped. A plurality of sieve holes are distributed at intervals at the bottom of the filter screen 6. The sieve holes are used to screen the welding waste. The driving mechanism 7 is connected to the filter screen 6 and is used to control the filter screen 6 to reciprocate in the horizontal direction and the vertical direction (the height direction of the material box 4). In some embodiments, a visual window (not shown in the figure) is embedded on the peripheral side of the material box 4. The visual window can be made of a light-transmitting material such as glass or acrylic plate.

[0040] The waste generated by the FPC board body 1 during the soldering process can be poured into the feed hopper 5, and the waste will fall into the filter screen 6 under the action of gravity. The filter screen 6 can screen the welding waste so as to better separate the welding rod and the welding slag. In order to improve the screening effect of the filter screen 6, the drive mechanism 7 can be operated, and the drive mechanism 7 drives the filter screen 6 to move horizontally and vertically, thereby driving the filter screen 6 to shake and vibrate, thereby accelerating the screening of the waste.

[0041] Combination Figure 4 and Figure 5Specifically, the driving mechanism 7 includes a support rod 71, a slide 72, a first spring 73, a first wedge block 74, a first driving assembly 75, a second spring 76, a second wedge block 77 and a second driving assembly 78. The support rod 71 is arranged in a horizontal direction and is arranged to be lifted and lowered along the height direction of the material box 4. The slide 72 is connected to the support rod 71 by sliding along the length direction of the support rod 71, and the filter screen 6 is installed on the slide 72. Two support rods 71 ​​are arranged in parallel, and the slide 72 is connected to the two support rods 71 ​​at the same time to improve the stability of the slide 72 and the filter screen 6.

[0042] The inner wall of the material box 4 is provided with a first strip groove 8 and a second strip groove 9 along the height direction. The first strip groove 8 and the second strip groove 9 are respectively located on both sides of the material box 4, the first strip groove 8 is located on the left side of the material box 4, and the second strip groove 9 is located on the right side of the material box 4. The first spring 73 and the first wedge block 74 are both installed in the first strip groove 8, and the two ends of the first spring 73 are connected to the material box 4 and the first wedge block 74 respectively; in this embodiment, the first wedge block 74 is located above the support rod 71, and the first spring 73 is located above the first wedge block 74. The first wedge block 74 is slidably connected in the first strip groove 8, and the elastic force direction of the first spring 73 and the moving direction of the first wedge block 74 are on the same straight line. The wedge surface of the first wedge block 74 faces the filter screen 6, and the end of the slide seat 72 close to the first wedge block 74 is connected to the first protrusion 17, and the first driving assembly 75 is used to hit the first protrusion 17 and the first wedge block 74.

[0043] The second spring 76 and the second wedge block 77 are both installed in the second strip groove 9, and the two ends of the second spring 76 are connected to the material box 4 and the second wedge block 77 respectively. The second spring 76 is located below the second wedge block 77, and the second wedge block 77 is slidably connected in the second strip groove 9. The elastic force direction of the second spring 76 and the moving direction of the second wedge block 77 are on the same straight line. In this embodiment, the second wedge block 77 is located below the support rod 71, and the two ends of the support rod 71 are respectively connected to the first wedge block 74 and the second wedge block 77. The end of the slide 72 close to the second wedge block 77 is connected to the second protrusion 18, and the second driving assembly 78 is used to hit the second protrusion 18 and the second wedge block 77. Among them, the support rod 71 is also sleeved with a return spring 10, and the two ends of the return spring 10 are respectively connected to the end of the slide 72 and the end of the support rod 71. As shown in the figure, the number of the return springs 10 is two, and the two return springs 10 are located at the two ends of the support rod 71.

[0044] The first driving assembly 75 includes a first motor 751 and a first cam 752. The first cam 752 is connected to the material box 4 in a clockwise rotation direction. The first motor 751 is installed on the material box 4 and connected to the first cam 752. The first motor 751 is used to control the rotation of the first cam 752. The side of the first cam 752 with the largest diameter is used to push the first protrusion 17 to move horizontally on the support rod 71, and push the first wedge block 74 to move vertically upward in the first strip groove 8.

[0045] The second driving assembly 78 includes a second motor 781 and a second cam 782. The second cam 782 is connected to the material box 4 in a counterclockwise rotation direction. The second motor 781 is installed on the material box 4 and is connected to the second cam 782. The second motor 781 is used to control the rotation of the second cam 782. The side with the largest diameter of the second cam 782 is used to push the second protrusion 18 to move horizontally on the support rod 71, and to push the second wedge block 77 to move vertically upward in the second strip groove 9. The second protrusion 18 and the first protrusion 17 have the same moving direction, and the first protrusion 17 and the second protrusion 18 both move horizontally to the left. In this embodiment, the first motor 751 and the second motor 781 both have a self-locking function, and the self-locking structure directly adopts the existing conventional technology.

[0046] When screening materials, the first drive assembly 75 and the second drive assembly 78 are operated, and the first motor 751 can drive the first cam 752 to rotate, and the rotation of the first cam 752 will hit the first protrusion 17 and the first wedge block 74 in turn, so that the first protrusion 17 moves horizontally to the left on the support rod 71, and the first wedge block 74 moves vertically upward in the first strip groove 8. The second motor 781 can drive the second cam 782 to rotate, and the rotation direction of the second cam 782 is opposite to that of the first cam 752. The second cam 782 will hit the second protrusion 18 and the second wedge block 77 in turn, so that the second protrusion 18 moves horizontally to the left on the support rod 71, and the second wedge block 77 moves vertically upward in the second strip groove 9.

[0047] The second protrusion 18 and the first protrusion 17 have the same moving direction, which can play a synergistic role in the horizontal movement of the slide 72, thereby improving the effect of the lateral movement of the slide 72 and the filter screen 6. The first wedge block 74 and the second wedge block 77 have the same moving direction, and since the two ends of the support rod 71 are respectively connected to the first wedge block 74 and the second wedge block 77, the vertical movement of the entire filter screen 6 is achieved.

[0048] According to some embodiments of the present application, optionally, universal balls are connected to both the first wedge block 74 and the second wedge block 77, and the first wedge block 74 is connected to the first strip groove 8 by rolling with the universal balls, and the second wedge block 77 is connected to the second strip groove 9 by rolling with the universal balls. When the first wedge block 74 moves in the first strip groove 8, due to the presence of the universal balls, the friction force on the first wedge block 74 during movement can be reduced, and the smoothness of the movement of the first wedge block 74 and the second wedge block 77 can be improved. Similarly, the universal balls can also reduce the friction force on the second wedge block 77 during movement in the second strip groove 9, and improve the smoothness of the movement of the second wedge block 77.

[0049] Among them, a number of hooks 11 are fixedly connected to the inner wall of the material box 4, each hook 11 is in the same plane and is located below the filter screen 6. The hooks 11 are used for hanging external cloth bags so that the opening of the cloth bags is open. The cloth bags are used to receive the welding waste falling from the filter screen 6.

[0050] Combination Figure 6 and Figure 7 In addition, in some embodiments, a lifting plate 12, a lifting cylinder 13 and a rotating motor 14 are also installed on the material box 4. In this embodiment, the feed hopper 5 is in the shape of an isosceles trapezoid, and the cross-sectional shape of the feed hopper 5 is rectangular; the opening of the feed hopper 5 gradually increases in the direction close to the filter screen 6, that is, the lower bottom of the feed hopper 5 is connected to the material box 4. The lifting plate 12 is installed in the feed hopper 5 and can be moved in the vertical direction. The lifting plate 12 is rectangular, and the surface area of ​​the lifting plate 12 can just block the minimum opening of the feed hopper 5.

[0051] The lifting cylinder 13 is fixed to the top of the material box 4, and the rotary motor 14 is installed on the piston rod of the lifting cylinder 13. The output shaft of the rotary motor 14 is connected to the lifting plate 12 and is used to control the rotation of the lifting plate 12. The rotating shaft of the lifting plate 12 is in the horizontal direction, and the lifting cylinder 13 is used to control the lifting of the rotary motor 14 and the lifting plate 12. In this embodiment, the rotary motor 14 has a self-locking function.

[0052] When the FPC board body 1 needs to be welded, the FPC board body 1 can be placed on the lifting plate 12 , which serves as a supporting plane and a welding plane, and waste generated during the welding process will be temporarily piled on the lifting plate 12 .

[0053] After welding is completed, the FPC board body 1 is taken out, and then the lifting cylinder 13 is operated to control the lifting plate 12 to move vertically downward. Since the opening of the feed port gradually increases in the direction close to the filter screen 6, and the area of ​​the lifting plate 12 is the minimum cross-section of the feed hopper 5, there will be a gap between the lifting plate 12 and the inside of the feed hopper 5. Then the rotating motor 14 is operated to drive the lifting plate 12 to flip, so that the waste on the lifting plate 12 is poured into the filter screen 6.

[0054] The lifting plate 12 is also fixedly connected to a limiting plate 15 on its circumference, and the limiting plate 15 and the lifting plate 12 form a limiting groove 16, which is used to limit the welding waste. The limiting plate 15 can block the waste on the surface of the lifting plate 12 to reduce the possibility of the waste being scattered to other locations.

[0055] The implementation principle of the FPC line welding waste collection device in the embodiment of the present application is as follows: the waste generated during the soldering process of the FPC board body 1 can be put into the feed hopper 5. These wastes will fall into the filter screen 6 under the action of gravity, and the filter screen 6 is responsible for screening the welding waste so as to more effectively separate the welding rod and the welding slag. In order to enhance the screening effect of the filter screen 6, the drive mechanism 7 can be started, which causes the filter screen 6 to move horizontally and vertically, thereby causing the filter screen 6 to shake and vibrate, and accelerate the screening process of the waste.

[0056] During the screening process, the first drive assembly 75 and the second drive assembly 78 are started. The first drive assembly 75 hits the first protrusion 17, causing it to move linearly along the support rod 71 under the action of external force; at the same time, the second drive assembly 78 hits the second protrusion 18, causing it to move laterally. Since the first protrusion 17 and the second protrusion 18 move in the same direction (horizontally to the left in this embodiment), they jointly push the slide 72 and the filter screen 6 to move horizontally along the support rod 71. At this time, the two reset springs 10 on the support rod 71 will undergo elastic deformation (the reset spring 10 close to the first wedge block 74 is compressed, and the reset spring 10 close to the second wedge block 77 is stretched).

[0057] When the first driving assembly 75 hits the first protrusion 17 and gradually approaches the first wedge block 74, the first wedge block 74 will move vertically upward after receiving the force; similarly, when the second driving assembly 78 hits the second protrusion 18 and gradually approaches the second wedge block 77, the second wedge block 77 will also move vertically upward after receiving the force. Since the first wedge block 74 and the second wedge block 77 are connected to the two ends of the support rod 71 respectively, the entire filter screen 6 can move vertically upward.

[0058] When the first driving assembly 75 stops acting on the first protrusion 17, and the second driving assembly 78 stops acting on the second protrusion 18, the return spring 10 on the support rod 71 will return the slide 72 to the initial position. At the same time, after the first driving assembly 75 and the second driving assembly 78 remove their forces on the wedge blocks, the first spring 73 and the second spring 76 will control the first wedge block 74 and the second wedge block 77 to reset, respectively, so as to realize the periodic lateral and vertical movement of the filter screen 6.

[0059] Based on the above embodiment, the embodiment of the present application further discloses an FPC line welding process, using a waste collection device with all the above structures, and the welding process includes the following steps: S1. After the fuse 2 is broken, the FPC board body 1 needs to be placed on the lifting plate 12 to ensure its stability and safety. S2. Subsequently, the operator needs to operate the soldering machine to carefully solder the soldering pads 3 between the head and the tail to ensure that the circuit can be normally connected to avoid short circuit or open circuit. S3. Next, the operator opens the door of the material box 4 and hangs the cloth bag on the hook 11 on the inner wall of the material box 4, ensuring that the opening of the cloth bag is completely open for subsequent screening work; then closes the door, operates the lifting cylinder 13 to control the lifting plate 12 to move downward, and then operates the rotating motor 14 to drive the lifting plate 12 to flip, and uses gravity to make the welding waste on the surface of the lifting plate 12 fall into the filter screen 6 to screen the welding rod and welding slag; the cloth bag is used to receive the welding slag that falls from the filter screen 6 for subsequent recycling and treatment; S4. During the screening process, the operator needs to operate the driving mechanism 7 to control the filter screen 6 to move horizontally and vertically. In this way, the filter screen 6 can be driven to shake or vibrate, which accelerates the screening, so that the welding slag falls off better and the screening efficiency is improved; S5. After the screening is completed, the operator needs to open the door of the material box 4, take out the cloth bag, and recycle and subsequently process it to ensure that the welding slag does not pollute the environment.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A FPC circuit welding waste collection device, characterized in that: The invention comprises an FPC board body (1) and a fuse (2), wherein two ends of the fuse (2) are respectively connected to the FPC board body (1), and a plurality of fuses (2) are arranged in parallel; a welding plate (3) is arranged on the FPC board body (1), and each welding plate (3) is arranged at a position close to the end of the fuse (2); when the fuse (2) is broken, the two welding plates (3) between the head and the tail are soldered by a soldering machine; The waste collection device is used to collect waste generated during the soldering process of the FPC board body (1), and comprises a material box (4), a feed hopper (5), a filter screen (6) and a drive mechanism (7). The top of the material box (4) is provided with an opening, the feed hopper (5) is arranged at the top of the material box (4) and is connected to the material box (4); the filter screen (6) is arranged in the material box (4) and below the feed hopper (5), and the filter screen (6) is used to screen the welding waste; the drive mechanism (7) is connected to the filter screen (6) and is used to control the filter screen (6) to move back and forth in the horizontal direction and the vertical direction; The driving mechanism (7) comprises a support rod (71), a slide seat (72), a first spring (73), a first wedge block (74), a first driving assembly (75), a second spring (76), a second wedge block (77) and a second driving assembly (78); the support rod (71) is arranged horizontally and rises and falls along the height direction of the material box (4); the slide seat (72) is slidably connected to the support rod (71); and the filter screen (6) is arranged on the slide seat (72).

2. The FPC circuit welding waste collection device according to claim 1, characterized in that: The inner wall of the material box (4) is provided with a first strip groove (8) and a second strip groove (9) along the height direction; the first spring (73) and the first wedge block (74) are both arranged in the first strip groove (8); the two ends of the first spring (73) are respectively connected to the material box (4) and the first wedge block (74); the first spring (73) is located above the first wedge block (74); the first wedge block (74) is slidably arranged in the first strip groove (8); the wedge surface of the first wedge block (74) faces the filter screen (6); the end of the slide seat (72) close to the first wedge block (74) is connected to a first protrusion (17); the first driving assembly (75) is used to hit the first protrusion (17) and the first wedge block (74); The second strip groove (9) is arranged opposite to the first strip groove (8); the second spring (76) and the second wedge block (77) are both arranged in the second strip groove (9); the two ends of the second spring (76) are respectively connected to the material box (4) and the second wedge block (77); the second spring (76) is located below the second wedge block (77); the second wedge block (77) is slidably arranged in the second strip groove (9); the end of the slide seat (72) close to the second wedge block (77) is connected to the second protrusion (18); the second driving assembly (78) is used to hit the second protrusion (18) and the second wedge block (77); wherein the two ends of the support rod (71) are respectively connected to the first wedge block (74) and the second wedge block (77); A return spring (10) is also sleeved on the support rod (71), and two ends of the return spring (10) are respectively connected to an end of the support rod (71) and an end of the slide seat (72).

3. The FPC circuit welding waste collection device according to claim 2, characterized in that: The first driving assembly (75) comprises a first motor (751) and a first cam (752); the first cam (752) is connected to the material box (4) in a clockwise rotation; the first motor (751) is connected to the first cam (752) and is used to control the rotation of the first cam (752); the side with the largest diameter of the first cam (752) is used to push the first protrusion (17) to move laterally on the support rod (71) and to push the first wedge block (74) to move vertically upward in the first strip groove (8).

4. The FPC circuit welding waste collection device according to claim 2, characterized in that: The second driving assembly (78) comprises a second motor (781) and a second cam (782); the second cam (782) is connected to the material box (4) in a counterclockwise rotation; the second motor (781) is connected to the second cam (782) and is used to control the rotation of the second cam (782); the side with the largest diameter of the second cam (782) is used to push the second protrusion (18) to move laterally on the support rod (71) and to push the second wedge block (77) to move vertically upward in the second strip groove (9); the second protrusion (18) and the first protrusion (17) move in the same direction.

5. The FPC circuit welding waste collection device according to claim 2, characterized in that: The first wedge block (74) and the second wedge block (77) are both connected to universal balls. The first wedge block (74) is connected to the first strip groove (8) by means of the universal balls, and the second wedge block (77) is connected to the second strip groove (9) by means of the universal balls.

6. The FPC circuit welding waste collection device according to claim 1, characterized in that: A plurality of hooks (11) are also connected to the inner wall of the material box (4), each of the hooks (11) is in the same plane and is located below the filter screen (6), and the hooks (11) are used to hang cloth bags.

7. The FPC circuit welding waste collection device according to claim 1, characterized in that: The feed hopper (5) is in the shape of an isosceles trapezoid, and the opening of the feed hopper (5) gradually increases in a direction approaching the filter screen (6).

8. The FPC circuit welding waste collection device according to claim 7, characterized in that: It also includes a lifting plate (12), a lifting cylinder (13) and a rotating motor (14); the lifting plate (12) is arranged at the minimum opening of the feed hopper (5) and is movable in the vertical direction; the rotating motor (14) is arranged on the piston rod of the lifting cylinder (13); the output shaft of the rotating motor (14) is connected to the lifting plate (12) and is used to control the rotation of the lifting plate (12); the rotating shaft of the lifting plate (12) is in the horizontal direction; the lifting cylinder (13) is used to control the lifting and lowering of the rotating motor (14) and the lifting plate (12).

9. The FPC circuit welding waste collection device according to claim 8, characterized in that: A limiting plate (15) is provided on the peripheral side of the lifting plate (12), and the limiting plate (15) and the lifting plate (12) form a limiting groove (16).

10. An FPC circuit welding process using the waste collection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. After the fuse (2) is broken, the FPC board body (1) is placed on a soldering machine; S2. The operator runs the soldering machine to solder the soldering plates (3) between the head and the tail so that the circuit can be connected normally; S3, the operator opens the door of the material box (4) and installs a cloth bag at the bottom of the filter screen (6); then closes the door, and sweeps the welding waste generated during the welding process into the feed hopper (5). The waste will fall into the filter screen (6) under the action of gravity to screen the welding rod and welding slag. The cloth bag is used to receive the welding slag that falls from the filter screen (6); S4, the operator then operates the driving mechanism (7), and the driving mechanism (7) controls the filter screen (6) to move horizontally and vertically, thereby causing the filter screen (6) to shake or vibrate, accelerating the screening so that the welding slag can fall off better; S5. After the screening is completed, the operator opens the door of the material box (4) and takes out the bags for recycling and subsequent processing.

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