Welding device for LED lamp strip machining

Abstract

The invention relates to the technical field of LED lamp strip processing, and discloses an LED lamp strip processing welding device which comprises a workbench and a reflow soldering furnace, the lower side of the workbench is sequentially provided with a first conveying mechanism, a surface mounting mechanism and a second conveying mechanism from right to left, the first conveying mechanism is used for conveying an LED assembly to move from right to left, and the second conveying mechanism is used for conveying the LED assembly to move from right to left; the second conveying mechanism is used for conveying the FPC material belt to move from left to right; two solder paste printing mechanisms are symmetrically arranged on the upper side of the workbench, and each solder paste printing mechanism comprises a first mounting base arranged on the workbench. According to the welding device for LED lamp strip machining, the machining mode of three stations and two strokes is adopted, the FPC material strip and the LED assembly are evenly coated with solder paste synchronously through the solder paste printing technology in the first stroke, the LED assembly is embedded into the FPC material strip in the second stroke, and therefore the reflow soldering technology of the solder paste is optimized, and the yield is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of LED light strip processing, and in particular to a welding device for processing LED light strips. Background Art

[0002] LED light strips are LEDs assembled on a strip of flexible printed circuit (FPC) or PCB, named for their resemblance to a ribbon. They use FPC as the assembly circuit board and SMD LEDs for assembly. They come in various sizes for different users and can be cut or extended at will without affecting the light output.

[0003] In the existing technology, the processing of LED light strips usually adopts the tinning process to inject a row of solder paste on the FPC material strip, and then the LED components are patched one by one on the solder paste and soldered. The traditional tinning process can easily cause the LED components to float, crooked, and have cold solder joints, causing the LED components to tip over, resulting in color difference and uneven brightness of the light strip, and a decrease in the yield rate. Summary of the Invention

[0004] The present invention provides a welding device for processing LED light strips, which has a three-station two-stroke processing method. In one stroke, solder paste printing technology is simultaneously used to evenly apply solder paste on the FPC material strip and the LED component. In the second stroke, the LED component is embedded in the FPC material strip, thereby optimizing the reflow soldering process of the solder paste and improving the yield rate. It solves the problem of the prior art mentioned in the above background technology, in which the processing of LED light strips usually adopts the spot tinning process to spot a row of solder paste on the FPC material strip, and then the LED components are attached one by one to the solder paste and then welded. The traditional spot tinning process is prone to cause floating parts, crooked parts, and cold solder joints of LED components, which lead to the side flipping of the LED components, resulting in color difference and uneven brightness of the light strip, and a decrease in the yield rate.

[0005] The present invention provides the following technical solution: a soldering device for processing LED light strips, comprising a workbench and a reflow oven, wherein a first conveying mechanism, a patch mechanism, and a second conveying mechanism are sequentially arranged on the lower side of the workbench from right to left, wherein the first conveying mechanism is used to convey LED components from right to left, and the second conveying mechanism is used to convey FPC strips from left to right;

[0006] Two solder paste printing mechanisms are symmetrically arranged on the upper side of the workbench, and the solder paste printing mechanism includes a first mounting base arranged on the workbench, and a plurality of sprayers and scrapers are arranged on the first mounting base;

[0007] The patch mechanism includes a second mounting seat arranged on the workbench, a hydraulic cylinder is arranged on the second mounting seat, a pressing die is slidably arranged on the workbench, and a piston rod of the hydraulic cylinder is connected to the pressing die.

[0008] As an optional solution of the welding device for processing LED light strips described in the present invention, wherein: the first conveying mechanism includes a first conveying frame, the first conveying frame is provided with a plurality of first vacuum suction cups, and the first conveying frame is further symmetrically provided with two first vacuum pumps, the two first vacuum pumps are respectively connected to the plurality of first vacuum suction cups;

[0009] Two first slide rails are symmetrically arranged on the workbench, and a first slider is slidably arranged on each of the two first slide rails. The two first sliders are respectively connected to the two first conveying frames.

[0010] As an optional solution of the welding device for processing an LED light strip described in the present invention, the first conveying mechanism also includes a flipping component, which is used to flip the LED component when the first conveying frame conveys the LED component to the patch mechanism.

[0011] As an optional solution for the welding device for processing LED light strips described in the present invention, the flip assembly includes two rotating shafts symmetrically arranged on the first conveying frame, and the two rotating shafts are respectively connected to the two first vacuum suction cups located on the front and rear sides, one of the rotating shafts is provided with a first gear, and a rack is provided on the workbench, the first gear is engaged with the rack, and a limiting plate is also provided on the workbench.

[0012] As an optional solution of the welding device for processing LED light strips described in the present invention, the second conveying mechanism includes two second conveying frames symmetrically arranged on the workbench, each of the two second conveying frames is provided with a second vacuum suction cup and a second vacuum pump, and the two second vacuum pumps are respectively connected to the two second vacuum suction cups;

[0013] Two second slide rails are symmetrically arranged on the workbench, and second sliders are slidably arranged on the two second slide rails. Connecting seats are arranged on the two second sliders, and the two second conveying frames are connected to the connecting seats.

[0014] As an optional solution of the welding device for processing an LED light strip according to the present invention, the second conveying mechanism further includes a lifting assembly, which is used to drive the FPC strip to descend to the lower side of the LED assembly during the process of the two second conveying frames conveying the FPC strip to the patch mechanism;

[0015] The lifting assembly includes four support seats arranged on the connecting seat, each of the four support seats is slidably provided with a sliding rod, two adjacent sliding rods are provided with a connecting rod, and two second conveying frames are respectively provided on the four sliding rods.

[0016] As an optional solution for the welding device for processing LED light strips described in the present invention, the lifting assembly also includes two fixed plates symmetrically arranged on the workbench, and V-shaped guide grooves are provided on both fixed plates. Transmission plates are provided on the two adjacent sliding rods, and guide rods are provided on both transmission plates. The two guide rods are respectively slidably connected in the two V-shaped guide grooves.

[0017] As an optional solution of the welding device for processing an LED light strip according to the present invention, wherein: a driving mechanism is provided on the workbench, and the driving mechanism is used to drive the first conveying frame and the two second conveying frames to move;

[0018] The driving mechanism includes four first pulleys rotatably arranged on the workbench, the four first pulleys are arranged in a rectangular shape, and the workbench is also provided with a first motor and two second pulleys, the output shaft of the first motor is connected to one of the first pulleys, and the two second pulleys are symmetrically distributed in the workbench;

[0019] The driving mechanism also includes a belt, which is connected to the four first pulleys and the two second pulleys. A first connecting plate is provided on one of the connecting seats, and a second connecting plate is provided on the connecting seat. The first connecting plate and the second connecting plate are respectively connected to the upper and lower parts of the belt.

[0020] As an optional solution of the welding device for processing LED light strips described in the present invention, the workbench is further provided with a third conveying mechanism, the third conveying mechanism including two active conveying assemblies symmetrically arranged on both sides of the workbench, the active conveying assemblies including two third mounting seats symmetrically arranged on the workbench, two first conveying rollers rotatably provided on the two third mounting seats, and the two first conveying rollers are respectively located on both sides of the FPC strip;

[0021] A second motor is provided on one of the third mounting seats, and an output shaft of the second motor is connected to one of the first conveying rollers. A second gear is provided on both of the first conveying rollers, and the two second gears are meshed with each other.

[0022] As an optional solution of the welding device for processing LED light strips described in the present invention, the third conveying mechanism also includes a driven conveying component, and the driven conveying component includes two fourth mounting seats symmetrically arranged on the workbench, and two second conveying rollers are rotatably arranged on the two fourth mounting seats, and the two second conveying rollers are respectively located on both sides of the FPC material strip.

[0023] The present invention has the following beneficial effects:

[0024] The soldering device for this LED light strip utilizes a three-station, two-stroke design. Two solder paste printing mechanisms, symmetrically positioned on either side of the workbench, first apply solder paste evenly to the FPC strip and LED components in a single stroke. Then, in a second stroke, the FPC strip and LED components are cross-fed to overlap, and a die is used to mate the FPC strip and LED components. This integrated process completes the solder paste printing and placement processes for the FPC strip and LED components, improving soldering quality, optimizing the cost of the LED light strip production line, and significantly increasing production efficiency.

[0025] 2. The welding device for processing LED light strips can automatically control the descent of the FPC strip and the flipping of the LED assembly during the cross displacement process of the FPC strip and the LED assembly to ensure the correspondence between the solder points and the pads, thereby ensuring the precise docking of the two solder paste layers to achieve excellent welding performance.

[0026] 3. The welding device for processing LED light strips controls the lifting and lowering of the FPC strip during displacement by using the guidance of the V-shaped guide groove, and controls the flipping of the FPC strip during displacement by using gear racks. No additional drive structure is required, which can further save production consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0028] Figure 2 It is a first cross-sectional structural schematic diagram of the present invention as a whole.

[0029] Figure 3 It is a schematic diagram of the exploded structure of the solder paste printing mechanism and the patch mechanism in the present invention.

[0030] Figure 4 This is a schematic diagram of the explosion structure of the first conveying mechanism in the present invention.

[0031] Figure 5 It is a structural schematic diagram of the second conveying mechanism in the present invention.

[0032] Figure 6Schematic diagram of the explosion structure of the third conveying mechanism in the present invention.

[0033] Figure 7 It is a schematic diagram of the explosion structure of the driving mechanism in the present invention.

[0034] Figure 8 Schematic diagram of the structure of the driving mechanism of the present invention.

[0035] Figure 9 It is a schematic diagram of the explosion structure of the second conveying mechanism in the present invention.

[0036] In the figure: 100, FPC tape; 110, LED component; 200, workbench; 210, reflow oven; 300, solder paste printing mechanism; 310, first mounting seat; 320, sprayer; 330, scraper; 400, patch mechanism; 410, second mounting seat; 420, hydraulic cylinder; 430, die; 500, first conveying mechanism; 510, first conveying frame; 520, first vacuum suction cup; 530, first vacuum pump; 540, first slide rail; 550, first slider; 560, first connecting plate; 570, flip assembly; 571, rotating shaft; 572, first gear; 573, rack; 574, limit plate; 600, second conveying mechanism; 610, second conveying frame; 620, second vacuum Suction cup; 630, second vacuum pump; 640, second slide rail; 650, second slider; 660, connecting seat; 670, second connecting plate; 680, lifting assembly; 681, support seat; 682, slide rod; 683, connecting rod; 684, fixing plate; 685, V-shaped guide groove; 686, transmission plate; 687, guide rod; 700, driving mechanism; 710, first pulley; 720, belt; 730, first motor; 740, second pulley; 800, third conveying mechanism; 810, active conveying assembly; 811, third mounting seat; 812, first conveying roller; 813, second motor; 814, second gear; 820, driven conveying assembly; 821, fourth mounting seat; 822, second conveying roller. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0038] For example 1, please refer to Figures 1-9A welding device for processing LED light strips includes a workbench 200 and a reflow oven 210. A first conveying mechanism 500, a patch mechanism 400, and a second conveying mechanism 600 are sequentially arranged on the lower side of the workbench 200 from right to left. The first conveying mechanism 500 is used to convey the LED component 110 from right to left, and the second conveying mechanism 600 is used to convey the FPC tape 100 from left to right.

[0039] Two solder paste printing mechanisms 300 are symmetrically arranged on the upper side of the workbench 200 . The solder paste printing mechanism 300 includes a first mounting seat 310 arranged on the workbench 200 . A plurality of sprayers 320 and scrapers 330 are arranged on the first mounting seat 310 .

[0040] The patch mechanism 400 includes a second mounting seat 410 provided on the workbench 200 , a hydraulic cylinder 420 is provided on the second mounting seat 410 , a die 430 is slidably provided on the workbench 200 , and a piston rod of the hydraulic cylinder 420 is connected to the die 430 .

[0041] The first conveying mechanism 500 includes a first conveying frame 510 , on which a plurality of first vacuum suction cups 520 are provided. The first conveying frame 510 is also symmetrically provided with two first vacuum pumps 530 , which are respectively connected to the plurality of first vacuum suction cups 520 .

[0042] Two first slide rails 540 are symmetrically arranged on the workbench 200 . A first slider 550 is slidably arranged on each of the two first slide rails 540 . The two first sliders 550 are respectively connected to the two first conveying frames 510 .

[0043] The first conveying mechanism 500 further includes a flipping assembly 570 , which is used to flip the LED assembly 110 when the first conveying frame 510 conveys the LED assembly 110 to the SMT mechanism 400 .

[0044] In this embodiment: a three-station workbench 200 is used, and on the left side of the workbench 200 is a second conveying mechanism 600 for carrying the FPC tape 100. The FPC tape 100 can be conveyed from the upstream production line from left to right through the workbench 200 and finally arrive at the reflow oven 210. The FPC tape 100 falls on the two second conveying frames 610, and the air in the contact gap between the two second vacuum suction cups 620 and the FPC tape 100 is extracted by the front and rear second vacuum pumps 630 to form a negative pressure to adsorb the FPC tape 100 on the two second vacuum suction cups 620 to complete the fixation.

[0045] The number of LED assemblies 110 in the front and back rows can be varied based on the processing requirements of the LED light strip. Several LED assemblies 110 can be positioned by installing a three-axis robotic arm behind the workbench 200, equipped with multiple additional vacuum suction cups. The robotic arm reciprocates to continuously remove multiple LED assemblies 110 from the trough, move them onto the first conveyor frame 510, and then place more LED assemblies 110. The LED assemblies 110 are then placed on corresponding first vacuum suction cups 520, which are connected in a continuous manner. Two first vacuum pumps 530 operate to drive the first vacuum suction cups 520 to hold the LED assemblies 110 in place.

[0046] The solder paste is then squeezed out and deposited onto the FPC strip 100 and the LED assemblies 110 by two spray applicators 320 on the left and right sides, respectively. The FPC strip 100 is then moved rightward and the LED assemblies 110 are then moved leftward by a drive mechanism 700. During this movement, the solder paste is evenly spread across the FPC strip 100 and the LED assemblies 110 by scrapers 330 on the left and right sides.

[0047] The operation of the first motor 730 can drive one of the first pulleys 710 to rotate clockwise, and then drive all the first pulleys 710 and the second pulleys 740 to rotate clockwise through the transmission of the belt 720. The second pulley 740 and the two adjacent first pulleys 710 are distributed in a V shape to ensure the transmission angle of the belt 720.

[0048] The belt 720 slides clockwise, causing the second slider 650 connected to its lower portion to move rightward along the second slide rail 640, thereby driving the second conveyor frame 610 and the FPC strip 100 to move rightward. The first slider 550 connected to the upper portion of the belt 720 moves leftward along the first slide rail 540, thereby driving the first conveyor frame 510 and the LED assembly 110 to move leftward.

[0049] After the FPC strip 100 and the LED assemblies 110 overlap, the hydraulic cylinder 420 drives the die 430 downward to fit the LED assemblies 110 onto the FPC strip 100. The FPC strip 100 and the LED assemblies 110 are then conveyed to the right into the reflow oven 210, where the solder paste gradually melts and flows, fully soaking the FPC strip 100 and the LED assemblies 110, ensuring a stable and reliable solder connection.

[0050] Example 2: This example is an improvement based on Example 1. For details, please refer to Figures 1-9The flipping assembly 570 includes two rotating shafts 571 symmetrically arranged on the first conveying frame 510. The two rotating shafts 571 are respectively connected to the two first vacuum suction cups 520 located on the front and rear sides. A first gear 572 is provided on one of the rotating shafts 571, and a rack 573 is provided on the workbench 200. The first gear 572 is meshed with the rack 573. A limiting plate 574 is also provided on the workbench 200.

[0051] The second conveying mechanism 600 includes two second conveying frames 610 symmetrically arranged in the workbench 200 . The two second conveying frames 610 are each provided with a second vacuum suction cup 620 and a second vacuum pump 630 . The two second vacuum pumps 630 are respectively connected to the two second vacuum suction cups 620 .

[0052] Two second slide rails 640 are symmetrically arranged on the workbench 200 , and second sliders 650 are slidably arranged on the two second slide rails 640 . Connecting seats 660 are arranged on the two second sliders 650 , and the two second conveying frames 610 are connected to the connecting seats 660 .

[0053] The second conveying mechanism 600 further includes a lifting assembly 680 , which is used to drive the FPC tape 100 down to the lower side of the LED assembly 110 during the process of the two second conveying frames 610 conveying the FPC tape 100 to the patch mechanism 400 .

[0054] The lifting assembly 680 includes four support seats 681 arranged on the connecting seat 660, and slide rods 682 are slidably arranged on the four support seats 681. Connecting rods 683 are arranged on two adjacent slide rods 682, and two second conveying frames 610 are respectively arranged on the four slide rods 682.

[0055] The lifting assembly 680 also includes two fixed plates 684 symmetrically arranged on the workbench 200, each of which is provided with a V-shaped guide groove 685, and a transmission plate 686 is provided on the two adjacent sliding rods 682. Each of the two transmission plates 686 is provided with a guide rod 687, and the two guide rods 687 are respectively slidably connected in the two V-shaped guide grooves 685.

[0056] A driving mechanism 700 is provided on the workbench 200 , and the driving mechanism 700 is used to drive the first conveying frame 510 and the two second conveying frames 610 to move.

[0057] The driving mechanism 700 includes four first pulleys 710 rotatably arranged on the workbench 200. The four first pulleys 710 are arranged in a rectangular shape. A first motor 730 and two second pulleys 740 are also provided on the workbench 200. The output shaft of the first motor 730 is connected to one of the first pulleys 710, and the two second pulleys 740 are symmetrically distributed in the workbench 200.

[0058] The driving mechanism 700 also includes a belt 720, which is transmission-connected to four first pulleys 710 and two second pulleys 740. A first connecting plate 560 is provided on one of the connecting seats 660, and a second connecting plate 670 is provided on the connecting seat 660. The first connecting plate 560 and the second connecting plate 670 are respectively connected to the upper and lower parts of the belt 720.

[0059] In this embodiment, the FPC strip 100 and the plurality of LED assemblies 110 need to be stacked up before being assembled. Therefore, when the FPC strip 100 moves rightward, the two guide rods 687 respectively follow the upper left portions of the V-shaped guide grooves 685 to the middle bottom portion of the V-shaped grooves, causing the two transmission plates 686 to move downward in a synchronous manner, driving the four slide rods 682 to move downward synchronously, thereby causing the two second conveyor frames 610 and the FPC strip 100 to move downward synchronously.

[0060] Finally, when the FPC strip 100 moves to the middle of the workbench 200 and is aligned with the die 430 , the first motor 730 stops.

[0061] When several LED components 110 move to the left, the first conveying frame 510 first moves to the left along the limit plate 574. At this time, the several LED components 110 remain horizontal until the first conveying frame 510 disengages from the limit plate 574. At this time, the first gear 572 is engaged with the rack 573. By setting the number of teeth of the first gear 572 and the rack 573, the first gear 572 rotates 180° during the left movement. At this time, the front and rear rotating shafts 571 on the first conveying frame 510 rotate 180° based on the two connecting seats 660, respectively, driving the several LED components 110 to turn over.

[0062] At this time, the second vacuum chuck 620 and the first vacuum chuck 520 are controlled to release their suction force, and the LED components 110 will stay above the FPC tape 100. Then, the flipped LED components 110 will align with the FPC tape 100 and fall down. Then, the patch mechanism 400 is controlled to operate for insertion.

[0063] Then the first motor 730 drives the belt 720 to slide counterclockwise, so that the first conveying mechanism 500 and the second conveying mechanism 600 are reset and the next set of engagement is performed.

[0064] Example 3: This example is an improvement based on Example 1. For details, please refer to Figures 1-9A third conveying mechanism 800 is also provided on the workbench 200. The third conveying mechanism 800 includes two active conveying components 810 symmetrically arranged on both sides of the workbench 200. The active conveying component 810 includes two third mounting seats 811 symmetrically arranged on the workbench 200. Two first conveying rollers 812 are rotatably provided on the two third mounting seats 811. The two first conveying rollers 812 are respectively located on both sides of the FPC tape 100.

[0065] A second motor 813 is provided on one of the third mounting seats 811 , and an output shaft of the second motor 813 is connected to one of the first conveying rollers 812 . A second gear 814 is provided on both first conveying rollers 812 , and the two second gears 814 are meshed with each other.

[0066] The third conveying mechanism 800 also includes a driven conveying assembly 820, which includes two fourth mounting seats 821 symmetrically arranged on the workbench 200, and two second conveying rollers 822 are rotatably arranged on the two fourth mounting seats 821. The two second conveying rollers 822 are respectively located on both sides of the FPC material tape 100.

[0067] In this embodiment, when loading, the two sets of active conveying components 810 on the left and right sides operate to move the FPC material strip 100 from left to right.

[0068] Taking one of the active conveyor assemblies 810 as an example, the second motor 813 drives the upper first conveyor roller 812 to rotate counterclockwise. The two second gears 814 then engage, causing the lower first conveyor roller 812 to rotate clockwise. The two first conveyor rollers 812 clamp the FPC strip 100 and convey it to the right. As the second conveyor mechanism 600 drives the FPC strip 100 rightward, the speed of the two second motors 813 can be automatically adjusted to match the speed.

[0069] In addition, a set of driven conveying components 820 is provided in the middle of the workbench 200, which moves passively with the rightward movement of the FPC tape 100. The driven conveying components 820 also have the second conveying roller 822 on the upper side rotate counterclockwise, and the second conveying roller 822 on the lower side rotate clockwise.

[0070] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0071] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A welding device for processing LED light strips, comprising a workbench (200) and a reflow oven (210), characterized in that: A first conveying mechanism (500), a patch mechanism (400), and a second conveying mechanism (600) are sequentially provided on the lower side of the workbench (200) from right to left. The first conveying mechanism (500) is used to convey the LED component (110) from right to left, and the second conveying mechanism (600) is used to convey the FPC tape (100) from left to right. Two solder paste printing mechanisms (300) are symmetrically arranged on the upper side of the workbench (200), and the solder paste printing mechanism (300) includes a first mounting seat (310) arranged on the workbench (200), and a plurality of sprayers (320) and scrapers (330) are arranged on the first mounting seat (310); The patch mechanism (400) comprises a second mounting seat (410) arranged on the workbench (200), a hydraulic cylinder (420) is arranged on the second mounting seat (410), a pressing die (430) is slidably arranged on the workbench (200), and a piston rod of the hydraulic cylinder (420) is connected to the pressing die (430).

2. The welding device for processing LED light strips according to claim 1, characterized in that: The first conveying mechanism (500) comprises a first conveying frame (510), a plurality of first vacuum suction cups (520) are arranged on the first conveying frame (510), and two first vacuum pumps (530) are symmetrically arranged on the first conveying frame (510), and the two first vacuum pumps (530) are respectively connected to the plurality of first vacuum suction cups (520); Two first slide rails (540) are symmetrically arranged on the workbench (200), and a first slider (550) is slidably arranged on each of the two first slide rails (540), and the two first sliders (550) are respectively connected to the two first conveying frames (510).

3. The welding device for processing LED light strips according to claim 2, characterized in that: The first conveying mechanism (500) further includes a flipping assembly (570), and the flipping assembly (570) is used to flip the LED assembly (110) when the first conveying frame (510) conveys the LED assembly (110) to the patch mechanism (400).

4. The welding device for processing LED light strips according to claim 3, characterized in that: The flip assembly (570) includes two rotating shafts (571) symmetrically arranged on the first conveying frame (510), and the two rotating shafts (571) are respectively connected to the two first vacuum suction cups (520) located on the front and rear sides. A first gear (572) is provided on one of the rotating shafts (571), and a rack (573) is provided on the workbench (200). The first gear (572) is meshed with the rack (573). A limiting plate (574) is also provided on the workbench (200).

5. The welding device for processing LED light strips according to claim 2, characterized in that: The second conveying mechanism (600) comprises two second conveying frames (610) symmetrically arranged in the workbench (200), the two second conveying frames (610) are each provided with a second vacuum suction cup (620) and a second vacuum pump (630), and the two second vacuum pumps (630) are respectively connected to the two second vacuum suction cups (620); Two second slide rails (640) are symmetrically arranged on the workbench (200), and a second slider (650) is slidably arranged on the two second slide rails (640). A connecting seat (660) is arranged on the two second sliders (650), and the two second conveying frames (610) are connected to the connecting seat (660).

6. The welding device for processing LED light strips according to claim 5, characterized in that: The second conveying mechanism (600) further comprises a lifting assembly (680), wherein the lifting assembly (680) is used to drive the FPC tape (100) to descend to the lower side of the LED assembly (110) during the process of the two second conveying frames (610) conveying the FPC tape (100) to the patch mechanism (400); The lifting assembly (680) includes four support seats (681) arranged on the connecting seat (660), and slide rods (682) are slidably arranged on the four support seats (681). Connecting rods (683) are arranged on two adjacent slide rods (682), and two second conveying frames (610) are respectively arranged on the four slide rods (682).

7. The welding device for processing LED light strips according to claim 6, characterized in that: The lifting assembly (680) further includes two fixed plates (684) symmetrically arranged on the workbench (200), each of the two fixed plates (684) being provided with a V-shaped guide groove (685), a transmission plate (686) being provided on two adjacent sliding rods (682), and a guide rod (687) being provided on each of the two transmission plates (686), and the two guide rods (687) being respectively slidably connected in the two V-shaped guide grooves (685).

8. The welding device for processing LED light strips according to claim 5, characterized in that: A driving mechanism (700) is provided on the workbench (200), and the driving mechanism (700) is used to drive the first conveying frame (510) and the two second conveying frames (610) to move; The driving mechanism (700) includes four first pulleys (710) rotatably arranged on the workbench (200), the four first pulleys (710) being arranged in a rectangular shape, a first motor (730) and two second pulleys (740) being further arranged on the workbench (200), an output shaft of the first motor (730) being connected to one of the first pulleys (710), and two second pulleys (740) being symmetrically distributed within the workbench (200); The driving mechanism (700) further includes a belt (720), wherein the belt (720) is connected to four first pulleys (710) and two second pulleys (740), wherein a first connecting plate (560) is provided on one of the connecting seats (660), and a second connecting plate (670) is provided on the connecting seat (660), and the first connecting plate (560) and the second connecting plate (670) are respectively connected to the upper and lower parts of the belt (720).

9. The welding device for processing LED light strips according to claim 1, characterized in that: The workbench (200) is further provided with a third conveying mechanism (800), the third conveying mechanism (800) comprising two active conveying components (810) symmetrically arranged on both sides of the workbench (200), the active conveying component (810) comprising two third mounting seats (811) symmetrically arranged on the workbench (200), two first conveying rollers (812) being rotatably arranged on the two third mounting seats (811), the two first conveying rollers (812) being respectively located on both sides of the FPC material strip (100); A second motor (813) is provided on one of the third mounting seats (811), an output shaft of the second motor (813) is connected to one of the first conveying rollers (812), and a second gear (814) is provided on both of the first conveying rollers (812), and the two second gears (814) are meshed with each other.

10. The welding device for processing LED light strips according to claim 9, characterized in that: The third conveying mechanism (800) further includes a driven conveying assembly (820), the driven conveying assembly (820) including two fourth mounting seats (821) symmetrically arranged on the workbench (200), two second conveying rollers (822) rotatably arranged on the two fourth mounting seats (821), and the two second conveying rollers (822) are respectively located on both sides of the FPC material strip (100).

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