A high-precision LED bracket and its production process

Abstract

The present invention relates to a high-precision LED bracket, comprising a bracket bearing plate and a plurality of lamp holders, wherein the plurality of lamp holders are distributed in a matrix on the surface of the bracket bearing plate, the lamp holders comprising a conductive plate and a packaging shell, the packaging shell comprising an upper shell and a lower shell, a guide plate being located between the upper shell and the lower shell, the upper shell being frame-shaped, two extension holes being formed in the lower shell, two pins being formed on the lower surface of the guide plate, the two pins being passed through the extension holes and pressed onto the lower surface of the lower shell, the lamp holders of the LED bracket having a simple structure and high stability; and the present invention also provides a high-precision LED bracket production process, wherein a copper sheet strip is subjected to stamping, electroplating, injection molding, bending, slitting and screening and packaging, wherein the injection molding is performed by an injection molding device, which has a high degree of intelligence, and the screening and packaging adopts a screening and sorting device, which greatly reduces labor intensity and improves production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of LED brackets, and in particular relates to a high-precision LED bracket and a production process thereof. Background Art

[0002] The existing LED bracket manufacturing process mainly includes stamping, electroplating, injection molding, bending and cutting, screening and packaging. Among them, the traditional injection molding device has low intelligence and low production efficiency, and most of the screening and packaging are done manually, with high labor costs and low efficiency. The market needs a high-efficiency LED bracket and production process. In view of this, this solution was created. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a high-precision LED bracket and a production process thereof. The lamp holder on the LED bracket has a simple structure and high stability, and the production efficiency of the LED bracket produced by this process is higher.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a high-precision LED bracket, including a bracket supporting plate and multiple lamp holders, the multiple lamp holders are distributed in a matrix on the surface of the bracket supporting plate, the lamp holders include a conductive plate and an encapsulation shell, the encapsulation shell includes an upper shell and a lower shell, the conductive plate is located between the upper shell and the lower shell, the upper shell is frame-shaped, the lower shell forms two extension holes, the lower surface of the conductive plate is formed with two pins, the two pins are pressed onto the lower surface of the lower shell through the extension holes.

[0005] A high-precision LED bracket production process includes the following steps:

[0006] (S1) stamping a copper strip to form a plurality of conductive plates and pins;

[0007] (S2) electroplating the copper strip;

[0008] (S3) performing injection molding on the conductive plate to form a lamp housing base;

[0009] (S4) stamping and bending the pins, cutting the copper sheets, and forming LED brackets;

[0010] (S5) screening and packaging LED brackets;

[0011] The specific steps in step (S3) are as follows: the copper strip is pulled out from the first unwinding roller, passes through the first traction roller, and when passing through the front mold and the rear mold, the movable adsorption seat on the front mold extends to adsorb and position the copper strip and then retracts, the first pushing component pushes the front mold, the middle mold and the rear mold to close the mold, and the material liquid is injected into the middle mold from the rear mold. After shaping, the front mold, the middle mold and the rear mold are opened, the movable adsorption seat releases the copper strip, the first winding rotating roller rotates to pull the copper strip downward, the telescopic clamping mechanism extends between the middle mold and the lower mold and clamps the waste material between the lower mold, and then repeats the above actions until the injection molding of a roll of copper strip is completed;

[0012] The specific steps in step (S5) are as follows: the first conveyor belt transports the LED bracket past the first camera, the first camera shoots and analyzes the LED bracket, and if it is a defective product, it sends an electrical signal to the fourth cylinder. When the defective product passes through the fourth cylinder, the fourth cylinder pushes the defective product out of the first conveyor belt, and the qualified product is conveyed to the second conveyor belt. The second conveyor belt transports the qualified LED bracket to the output end of the second conveyor belt. When the LED bracket is about to reach the output end of the second conveyor belt, the two fifth cylinders extend, and the blocking plate is located in the gap between the second conveyor belt and the third conveyor belt. The LED bracket falls on the blocking plate, and the third conveyor belt transports the blocking paper to the LED bracket. Then the fifth cylinder retracts, and the LED bracket and the blocking paper fall onto the fourth conveyor belt. This is repeated until the LED brackets on the fourth conveyor belt reach a predetermined number and the fourth conveyor belt transports the LED bracket away.

[0013] The step (S3) uses an injection molding device for injection molding, and the injection molding device includes a first unwinding roller, a first traction roller, a first pushing component, an injection mold, a telescopic clamping mechanism and a first winding rotating roller;

[0014] The injection mold includes a front mold, a middle mold and a back mold, the front mold is formed with a first sliding groove and a plurality of first guide holes on a side facing the middle mold, a movable adsorption seat is formed in the first sliding groove, the movable adsorption seat is slidably connected to the first sliding groove, the front mold is formed with a matching column, a deformation sleeve is fixedly sleeved on the surface of the matching column, limiting grooves are formed on two side walls of the front mold, first guide plates are connected on both sides of the middle mold, one end of the first guide plate is fixedly connected to the middle mold, the other end of the first guide plate extends into the limiting groove and is slidably connected, a plurality of second guide holes are formed in the middle mold, a plurality of matching holes are formed in the middle mold, the matching holes are adapted to the deformation sleeve, the diameter of the deformation sleeve is larger than the matching holes, a plurality of guide posts are formed on a side facing the middle mold, the plurality of guide posts respectively pass through the plurality of second guide holes, one end of the guide post passing through the second guide hole is connected to a positioning ring, the diameter of the first guide hole is greater than or equal to the diameter of the positioning ring, and the plurality of guide posts are adapted to the first guide holes respectively;

[0015] The first pushing component is used to push the front mold to seal with the middle mold and the rear mold;

[0016] The copper strip passes through the first unwinding roller, the first pulling roller, between the front mold and the middle mold, and the first winding rotating roller in sequence;

[0017] The telescopic clamping mechanism is used to clamp the waste material on the surface of the rear mold.

[0018] A spring is sleeved on the guide column, and the spring is located between the middle mold and the rear mold.

[0019] The telescopic clamping mechanism includes a first cylinder, a second cylinder and an opposing clamping assembly, wherein the second cylinder is connected to the output end of the first cylinder, and the opposing clamping assembly is connected to the output end of the second cylinder.

[0020] The opposing clamping assembly includes a third cylinder, two extension plates, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod. The third cylinder includes a cylinder body and an output rod. The two extension plates are connected on both sides of the lower surface of the cylinder body. The directions of the two extension plates are perpendicular to the clamping direction. One end of the first connecting rod is rotatably connected to the output rod, and the other end of the first connecting rod is rotatably connected to one end of the third connecting rod. One end of the second connecting rod is rotatably connected to the output rod, and the other end of the second connecting rod is rotatably connected to one end of the fourth connecting rod. The third connecting rod and the fourth connecting rod are hinged by a first rotating shaft, and the first rotating shaft is fixedly arranged between the two extension plates. A clamping body is formed on the side of the third connecting rod and the fourth connecting rod facing the lower mold.

[0021] A second sliding groove is formed on the facing sides of the two extension plates, and the second sliding groove is horizontally arranged. The first connecting rod and the third connection are rotatably connected by a second rotating shaft, and first rotating wheels are formed at both ends of the second rotating shaft. The first rotating wheel is located in the second sliding groove and is slidably connected. The second connecting rod and the fourth connection are rotatably connected by a third rotating shaft, and second rotating wheels are formed at both ends of the third rotating shaft. The second rotating wheel is located in the second sliding groove and is slidably connected.

[0022] The step (S5) adopts a screening and sorting device for screening and packaging, and the screening and sorting device includes a first conveyor belt, a first camera, a fourth cylinder, a second conveyor belt, two fifth cylinders, a third conveyor belt and a fourth conveyor belt, the first camera is located above the input end of the first conveyor belt, the first conveyor belt is used to convey the LED bracket, the fourth cylinder is located on one side of the middle of the first conveyor belt, the fourth cylinder is used to push out unqualified LED brackets, the output end of the first conveyor belt is connected to the input end of the second conveyor belt, the output end of the second conveyor belt and the output end of the third conveyor belt are facing each other, the second conveyor belt and the third conveyor belt are arranged at intervals, the distance between the second conveyor belt and the third conveyor belt is greater than the width of the LED bracket, the two fifth cylinders are located on both sides of the gap between the second conveyor belt and the third conveyor belt, the output end of the fifth cylinder is connected to a blocking plate, the horizontal height of the upper surface of the blocking plate is lower than the horizontal height of the upper surfaces of the second conveyor belt and the third conveyor belt, the third conveyor belt is used to convey blocking paper, and the fourth conveyor belt is located below the gap between the second conveyor belt and the third conveyor belt.

[0023] A first partition and a second partition are formed on both sides of the first conveyor belt, respectively. The first partition is formed with a first notch, and the second partition is formed with a second notch. The first notch and the second notch correspond to each other, and the output end of the fourth cylinder is located at the first notch.

[0024] A third partition and a fourth partition are formed on both sides of the second conveyor belt and the third output belt respectively. The third partition is formed with a third gap, and the fourth partition is formed with a fourth gap. The output ends of the two fifth cylinders are respectively located at the third gap and the fourth gap.

[0025] A transition rod is formed on the outward side of the output ends of the second conveyor belt and the third conveyor belt.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The lamp holder matrix in the present invention is distributed on the bracket bearing plate, the conductive plate of the lamp holder is fixed between the upper shell and the lower shell, and the pins extend from the lower surface of the lower shell and are then pressed onto the lower surface of the lower shell. The lamp holder has a simple structure and a stable connection. The production process of the LED bracket in the present invention is adopted. The copper sheet is first stamped to punch out the prototype of the conductive plate and the pins, and then electroplating is performed. Automatic injection molding is achieved through the cooperation between the first unwinding roller, the first traction roller, the first pushing component, the injection mold, the telescopic clamping mechanism and the first winding rotating roller. Then, the pins are bent, the copper sheet is cut, and finally the packaging is performed. The entire production process is highly intelligent.

[0028] 2. The injection mold includes a front mold, a middle mold and a rear mold, wherein a movable adsorption seat is formed on the front mold, which can adsorb the copper sheet to prevent the copper sheet from shifting during the stamping process, resulting in injection failure; and limiting grooves are formed on both sides of the front mold, and first guide plates are formed on both sides of the middle mold. The first guide plates and the limiting grooves are adapted and slidably connected. A guide column is formed on the rear mold, and a second guide hole and a first guide hole are respectively formed on the middle mold and the front mold. The guide column passes through the second guide hole and is adapted to the first guide hole. Only during stamping will the guide column extend into the first guide hole; the accuracy of the mold closing is ensured by the coordination of the first guide plate and the limiting groove and the coordination of the guide column, the first guide hole and the second guide hole.

[0029] 3. Set the first camera to detect unqualified LED brackets, then send an electrical signal and the fourth cylinder will push out the unqualified products. The qualified LED brackets are transported to the second conveyor belt. When the LED bracket is about to reach the output end of the second conveyor belt, the two fifth cylinders extend, and the blocking plate is located in the gap between the second conveyor belt and the third conveyor belt. The LED bracket falls on the blocking plate, and the third conveyor belt transports the blocking paper to the LED bracket. Then the fifth cylinder retracts, and the LED bracket and the blocking paper fall onto the fourth conveyor belt. The fifth cylinder and blocking plate are set to prevent the LED bracket from falling directly into the fourth conveyor belt, resulting in the upper surface of the LED bracket not being covered with a layer of blocking paper, thereby causing damage to the LED bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a front view structural schematic diagram of a high-precision LED bracket of the present invention;

[0031] Figure 2 Schematic diagram of the top view of the lamp holder in the present invention;

[0032] Figure 3 Schematic diagram of the bottom view of the lamp holder of the present invention;

[0033] Figure 4 Schematic diagram of the side structure of the lamp holder of the present invention;

[0034] Figure 5 It is a front view structural schematic diagram of the injection molding device of the present invention;

[0035] Figure 6 Schematic diagram of the three-dimensional structure of the injection mold in the present invention;

[0036] Figure 7 This is a schematic diagram of the three-dimensional structure of the injection mold in another direction of the present invention;

[0037] Figure 8 Schematic diagram of the three-dimensional structure of the telescopic clamping mechanism of the present invention;

[0038] Figure 9 It is a schematic diagram of a partial three-dimensional structure of the opposing clamping assembly in the present invention;

[0039] Figure 10 It is a schematic diagram of the three-dimensional structure of the screening and sorting device in the present invention.

[0040] Markings in the figure: 1, bracket bearing plate; 2, lamp holder; 21, conductive plate; 211, pin; 22, package shell; 221, upper shell; 222, lower shell;

[0041] 3. Injection molding device; 31. First unwinding roller; 32. First traction roller; 33. First pushing assembly; 34. Injection mold; 341. Front mold; 3411. First guide hole; 3412. Movable adsorption seat; 3413. Matching column; 34131. Deformation sleeve; 3414. Limiting groove; 342. Middle mold; 3421. First guide plate; 3422. Second guide hole; 3423. Matching hole; 343. Back mold; 3431. Guide column; 34311. Positioning ring; 3432. Spring;

[0042] 35. Telescopic clamping mechanism; 351. First cylinder; 352. Second cylinder; 353. Opposing clamping assembly; 3531. Third cylinder; 3532. Extension plate; 35321. Second sliding groove; 3533. First connecting rod; 3534. Second connecting rod; 3535. Third connecting rod; 3536. Fourth connecting rod; 3537. Clamping body; 3538. First rotating wheel; 3539. Second rotating wheel; 36. First winding rotating roller;

[0043] 4. Screening and sorting device; 41. First conveyor belt; 411. First partition; 412. Second partition; 42. First camera; 43. Fourth cylinder; 44. Second conveyor belt; 441. Third partition; 442. Fourth partition; 443. Transition rod; 45. Fifth cylinder; 451. Blocking plate; 46. Third conveyor belt; 47. Fourth conveyor belt. DETAILED DESCRIPTION

[0044] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description.

[0045] like Figure 1-10 As shown, this embodiment provides a high-precision LED bracket, including a bracket supporting plate 1 and 96 lamp holders 2.

[0046] 96 lamp holders 2 (16*6 / row*column) are distributed in a matrix on the surface of the bracket supporting plate 1. The lamp holder 2 includes a conductive plate 21 and an encapsulation shell 22. The encapsulation shell 22 includes an upper shell 221 and a lower shell 222. The conductive plate 21 is located between the upper shell 221 and the lower shell 222. The upper shell 221 is frame-shaped, and the lower shell 222 forms two extension holes. Two pins 211 are formed on the lower surface of the conductive plate 21. The two pins 211 pass through the extension holes and are pressed onto the lower surface of the lower shell 222. The lamp holder 2 of the LED bracket has a simple structure and good stability.

[0047] The present invention also provides a high-precision LED bracket production process, comprising the following steps:

[0048] (S1) stamping a copper strip to form a plurality of conductive plates 21 and pins 211;

[0049] (S2) electroplating the copper strip;

[0050] (S3) performing injection molding on the conductive plate 21 to form a lamp housing base;

[0051] (S4) Punching and bending the pins 211 and cutting the copper sheet to form an LED bracket;

[0052] (S5) Screening and packaging the LED brackets.

[0053] In step (S1), a punching machine of the prior art is used for punching.

[0054] The step (S2) adopts the electroplating technology in the prior art.

[0055] In step ( S3 ), an injection molding device 3 is used for injection molding. The injection molding device 3 includes a first unwinding roller 31 , a first traction roller 32 , a first pushing assembly 33 , an injection mold 34 , a telescopic clamping mechanism 35 and a first winding rotating roller 36 .

[0056] The injection mold 34 includes a front mold 341, a middle mold 342 and a back mold 343. The front mold 341 is formed with a first sliding groove and four first guide holes 3411 on the side facing the middle mold 342. A movable adsorption seat 3412 is formed in the first sliding groove. The movable adsorption seat 3412 is slidably connected to the first sliding groove. Specifically, a plurality of suction holes are formed on the movable adsorption seat 3412. The front mold 341 is formed with a matching column 3413. A deformable sleeve 34131 is fixedly sleeved on the surface of the matching column 3413. The two side walls of the front mold 341 are formed with a limiting groove 3414. The middle mold 342 is connected to both sides of the first guide plate 3421. One end of the first guide plate 3421 is fixedly connected to the middle mold 342. The other end of the first guide plate 3421 extends into the limiting groove 3414 and is slidably connected. The middle mold 342 is formed with an insertion groove on the side facing the back mold 343. The middle mold 342 is formed with four second guide holes 3422. 42 is formed with four matching holes 3423, which are adapted to the deformation sleeve 34131. The diameter of the deformation sleeve 34131 is larger than the matching holes 3423. The side of the rear mold 343 facing the middle mold 342 is formed with two raised injection areas. The two injection areas are spaced apart and can enter or move away from the insertion groove. The side of the rear mold 343 facing the middle mold 342 is formed with four guide posts 3431. The four guide posts 3431 pass through the four second guide holes 3422 respectively. The guide posts 3431 pass through the second guide holes 3422. One end of the mold is connected to a positioning ring 34311. The diameter of the first guide hole 3411 is greater than or equal to the diameter of the positioning ring 34311. The four guide posts 3431 are respectively adapted to the first guide holes 3411. During stamping, the matching posts 3413 and the deforming sleeve 34131 extend into the matching holes 3423. The deforming sleeve 34131 is deformed, and a large friction force is generated between the deforming sleeve 34131 and the matching holes 3423. When the mold is opened, when the first pushing component 33 and the front mold 341 are retracted, due to the friction between the deforming sleeve 34131 and the matching holes 3423, the first pushing component 33 and the front mold 341 are retracted. There is a large friction between the middle mold 342 and the front mold 341. Until the middle mold 342 hits the positioning ring 34311 on the guide column 3431, the front mold 341 is pulled away from the middle mold 342 by the first pushing component 33. Specifically, a spring 3432 is provided on the guide column 3431. The spring 3432 is located between the middle mold 342 and the rear mold 343. When the middle mold 342 and the rear mold 343 are opened, the spring 3432 can generate a pushing force on the middle mold 342, making the mold opening faster.

[0057] The first pushing component 33 is used to push the front mold 341 to seal with the middle mold 342 and the rear mold 343. Specifically, the first pushing component 33 is a cylinder, and the output end of the first pushing component 33 is fixedly connected to the front mold 341.

[0058] The copper sheet strip passes through the first unwinding roller 31, the first pulling roller 32, between the front mold 341 and the middle mold 342 and the first winding rotating roller 36 in sequence. Specifically, the first unwinding roller 31 is a driven roller, the first pulling roller 32 is also a driven roller, and the first winding rotating roller 36 is a driving roller. The copper sheet strip is wound on the first unwinding roller 31, pulled out from the second unwinding, placed on the upper surface of the first pulling roller 32, then passes between the front mold 341 and the middle mold 342, and finally wound on the first winding rotating roller 36.

[0059] The telescopic clamping mechanism 35 is used to clamp the waste material on the surface of the rear mold 343 . Specifically, the telescopic clamping mechanism 35 includes a first cylinder 351 , a second cylinder 352 and an opposing clamping assembly 353 .

[0060] The second cylinder 352 is connected to the output end of the first cylinder 351 , and the opposing clamping assembly 353 is connected to the output end of the second cylinder 352 .

[0061] The opposing clamping assembly 353 includes a third cylinder 3531, two extension plates 3532, a first connecting rod 3533, a second connecting rod 3534, a third connecting rod 3535 and a fourth connecting rod 3536. The third cylinder 3531 includes a cylinder body and an output rod. The two extension plates 3532 are connected to both sides of the lower surface of the cylinder body. The directions of the two extension plates 3532 are perpendicular to the clamping direction. One end of the first connecting rod 3533 is rotatably connected to the output rod, the other end of the first connecting rod 3533 is rotatably connected to one end of the third connecting rod 3535, one end of the second connecting rod 3534 is rotatably connected to the output rod, the other end of the second connecting rod 3534 is rotatably connected to one end of the fourth connecting rod 3536, the third connecting rod 3535 and the fourth connecting rod 3536 are hinged by a first rotating shaft, and the first rotating shaft is fixedly set between the two extension plates 3532. The third connecting rod 3535 and the fourth connecting rod 3536 are shaped toward one side of the lower mold. The second connecting rod 3533 is provided with a clamping body 3537, and the clamping action is achieved by the cooperation of the third cylinder 3531 and the connecting rod. Specifically, a second sliding groove 35321 is formed on the facing side of the two extension plates 3532, and the second sliding groove 35321 is arranged horizontally. The first connecting rod 3533 and the third connection are rotatably connected by the second rotating shaft, and a first rotating wheel 3538 is formed at both ends of the second rotating shaft. The first rotating wheel 3538 is located in the second sliding groove 35321 and is slidably connected. The second connecting rod 3534 and the fourth connection are rotatably connected by the third rotating shaft, and a second rotating wheel 3539 is formed at both ends of the third rotating shaft. The second rotating wheel 3539 is located in the second sliding groove 35321 and is slidably connected. The cooperation of the first rotating wheel 3538 and the second sliding groove 35321 and the cooperation of the second rotating wheel 3539 and the second sliding groove 35321 makes the opposite clamping action of the clamping body 3537 more stable and powerful.

[0062] In step (S4), the copper sheet pins 211 are bent by a conventional pressing machine, and the copper sheet strip is cut into individual LED brackets by a conventional slitting machine.

[0063] In step (S5), a screening and sorting device 4 is used to screen and package. The screening and sorting device 4 includes a first conveyor belt 41, a first camera 42, a fourth cylinder 43, a second conveyor belt 44, two fifth cylinders 45, a third conveyor belt 46 and a fourth conveyor belt 47.

[0064] The first camera 42 is located above the input end of the first conveyor belt 41, and the first conveyor belt 41 is used to convey the LED bracket. The fourth cylinder 43 is located on one side of the middle of the first conveyor belt 41. The output end of the first conveyor belt 41 is connected to the input end of the second conveyor belt 44. The fourth cylinder 43 is used to push out unqualified LED brackets. Specifically, a first partition 411 and a second partition 412 are formed on both sides of the first conveyor belt 41. The first partition 411 is formed with a first notch, and the second partition 412 is formed with a second notch. The first notch and the second notch correspond to each other. The output end of the fourth cylinder 43 is located at the first notch, and the second notch is used to push out unqualified LED brackets.

[0065] The output end of the second conveyor belt 44 and the output end of the third conveyor belt 46 are facing each other. The third conveyor belt 46 is used to convey barrier paper, which is sulfur-free paper. The second conveyor belt 44 and the third conveyor belt 46 are arranged at intervals. The distance between the second conveyor belt 44 and the third conveyor belt 46 is greater than the width of the LED bracket. The two fifth cylinders 45 are located on both sides of the gap between the second conveyor belt 44 and the third conveyor belt 46. Specifically, a third partition plate 441 and a fourth partition plate 442 are formed on both sides of the second conveyor belt 44 and the third output belt, respectively. The third partition plate 441 forms a third notch, and the fourth partition plate 442 forms a fourth notch. The output ends of the two fifth cylinders 45 are respectively located at the third notch and the fourth notch. The output end of the fifth cylinder 45 is connected to a barrier plate 451. The horizontal height of the upper surface of the barrier is lower than the horizontal height of the upper surface of the second conveyor belt 44 and the third conveyor belt 46.

[0066] Preferably, a transition rod 443 is formed on the outward side of the output end of the second conveyor belt 44 and the third conveyor belt 46. The transition rod 443 is provided so that the LED bracket and the barrier paper fall onto the barrier of the fifth cylinder 45 more smoothly, thereby playing a buffering role.

[0067] The fourth conveyor belt 47 is located below the gap between the second conveyor belt 44 and the third conveyor belt 46. When a certain number of LED brackets and barrier paper fall onto the fourth conveyor belt 47 (no barrier paper is laid above the top LED bracket, and barrier paper is only laid between adjacent LED brackets), the fourth conveyor belt 47 transports them away for secondary packaging.

[0068] The specific operation steps are as follows: First, the copper strip is punched out by a punching machine to punch out a preliminary model of the conductive plate 21 and the pin 211; then the punched copper strip is electroplated; then, the copper strip is pulled out from the first unwinding roller 31, passes through the first traction roller 32, and passes through the front mold 341 and the rear mold 343. The movable adsorption seat 3412 on the front mold 341 extends out to adsorb and position the copper strip and then retracts. The first pushing component 33 pushes the front mold 341, the middle mold 342 and the rear mold 343 to close the mold, and the slurry is pulled out from the rear mold. The mold 343 is injected into the middle mold 342. After shaping, the front mold 341, the middle mold 342 and the rear mold 343 are opened, the mobile adsorption seat 3412 releases the copper strip, the first winding roller 36 rotates and pulls the copper strip downward, the telescopic clamping mechanism extends between the middle mold 342 and the lower mold and clamps the waste between the lower molds, and then repeats the above action until a roll of copper strip is injection molded; the copper strip after injection molding is then bent by the punching machine with the pins 211, and then cut by the slitting machine. When the LED bracket is formed, the LED bracket is sent to the first conveyor belt 41. The first conveyor belt 41 transports the LED bracket through the first camera 42. The first camera 42 takes a picture of the LED bracket and analyzes it. If it is a defective product, it sends an electrical signal to the fourth cylinder 43. When the defective product passes through the fourth cylinder 43, the fourth cylinder 43 pushes the defective product out of the first conveyor belt 41, and the qualified product is transported to the second conveyor belt 44. The second conveyor belt 44 transports the qualified LED bracket to the output end of the second conveyor belt 44. When the LED bracket When the LED bracket is about to reach the output end of the second conveyor belt 44, the two fifth cylinders 45 extend, and the blocking plate 451 is located in the gap between the second conveyor belt 44 and the third conveyor belt 46. The LED bracket falls on the blocking plate 451, and the third conveyor belt 46 transports the blocking paper to the LED bracket. Then the fifth cylinder 45 retracts, and the LED bracket and the blocking paper fall onto the fourth conveyor belt 47. This is repeated until the number of LED brackets on the fourth conveyor belt 47 reaches the predetermined number. The fourth conveyor belt 47 transports the LED bracket away, and finally the secondary packaging is carried out.

[0069] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-precision LED bracket production process, characterized by: The following steps are involved: (S1) stamping a copper strip to form a plurality of conductive plates and pins; (S2) electroplating the copper strip; (S3) performing injection molding on the conductive plate to form a lamp housing base; (S4) stamping and bending the pins, cutting the copper sheets, and forming LED brackets; (S5) screening and packaging LED brackets; The specific steps in step (S3) are as follows: the copper strip is pulled out from the first unwinding roller, passes through the first traction roller, and when passing through the front mold and the rear mold, the movable adsorption seat on the front mold extends to adsorb and position the copper strip and then retracts, the first pushing component pushes the front mold, the middle mold and the rear mold to close the mold, and the material liquid is injected into the middle mold from the rear mold. After shaping, the front mold, the middle mold and the rear mold are opened, the movable adsorption seat releases the copper strip, the first winding rotating roller rotates to pull the copper strip downward, the telescopic clamping mechanism extends between the middle mold and the lower mold and clamps the waste material between the lower mold, and then repeats the above actions until the injection molding of a roll of copper strip is completed; The specific steps in step (S5) are as follows: the first conveyor belt transports the LED bracket past the first camera, the first camera shoots and analyzes the LED bracket, and if it is a defective product, it sends an electrical signal to the fourth cylinder, when the defective product passes the fourth cylinder, the fourth cylinder pushes the defective product out of the first conveyor belt, and the qualified product is conveyed to the second conveyor belt, and the second conveyor belt transports the qualified LED bracket to the output end of the second conveyor belt, when the LED bracket is about to reach the output end of the second conveyor belt, the two fifth cylinders extend, and the blocking plate is located in the gap between the second conveyor belt and the third conveyor belt, and the LED bracket falls on the blocking plate, and the third conveyor belt transports the blocking paper to the LED bracket, and then the fifth cylinder retracts, and the LED bracket and the blocking paper fall onto the fourth conveyor belt, and this is repeated until the number of LED brackets on the fourth conveyor belt reaches a predetermined number, and the fourth conveyor belt transports the LED bracket away; The step (S3) uses an injection molding device for injection molding, and the injection molding device includes a first unwinding roller, a first traction roller, a first pushing component, an injection mold, a telescopic clamping mechanism and a first winding rotating roller; The injection mold includes a front mold, a middle mold and a back mold, the front mold is formed with a first sliding groove and a plurality of first guide holes on a side facing the middle mold, a movable adsorption seat is formed in the first sliding groove, the movable adsorption seat is slidably connected to the first sliding groove, the front mold is formed with a matching column, a deformation sleeve is fixedly sleeved on the surface of the matching column, limiting grooves are formed on two side walls of the front mold, first guide plates are connected on both sides of the middle mold, one end of the first guide plate is fixedly connected to the middle mold, the other end of the first guide plate extends into the limiting groove and is slidably connected, a plurality of second guide holes are formed in the middle mold, a plurality of matching holes are formed in the middle mold, the matching holes are adapted to the deformation sleeve, the diameter of the deformation sleeve is larger than the matching holes, a plurality of guide posts are formed on a side facing the middle mold, the plurality of guide posts respectively pass through the plurality of second guide holes, one end of the guide post passing through the second guide hole is connected to a positioning ring, the diameter of the first guide hole is greater than or equal to the diameter of the positioning ring, and the plurality of guide posts are adapted to the first guide holes respectively; The first pushing component is used to push the front mold to seal with the middle mold and the rear mold; The copper strip passes through the first unwinding roller, the first pulling roller, between the front mold and the middle mold, and the first winding rotating roller in sequence; The telescopic clamping mechanism is used to clamp the waste material on the surface of the rear mold.

2. A high-precision LED bracket production process according to claim 1, characterized in that: A spring is sleeved on the guide column, and the spring is located between the middle mold and the rear mold.

3. The high-precision LED bracket production process according to claim 1, characterized in that: The telescopic clamping mechanism includes a first cylinder, a second cylinder and an opposing clamping assembly, wherein the second cylinder is connected to the output end of the first cylinder, and the opposing clamping assembly is connected to the output end of the second cylinder.

4. A high-precision LED bracket production process according to claim 3, characterized in that: The opposing clamping assembly includes a third cylinder, two extension plates, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod. The third cylinder includes a cylinder body and an output rod. The two extension plates are connected on both sides of the lower surface of the cylinder body. The directions of the two extension plates are perpendicular to the clamping direction. One end of the first connecting rod is rotatably connected to the output rod, and the other end of the first connecting rod is rotatably connected to one end of the third connecting rod. One end of the second connecting rod is rotatably connected to the output rod, and the other end of the second connecting rod is rotatably connected to one end of the fourth connecting rod. The third connecting rod and the fourth connecting rod are hinged by a first rotating shaft, and the first rotating shaft is fixedly arranged between the two extension plates. A clamping body is formed on the side of the third connecting rod and the fourth connecting rod facing the lower mold.

5. The high-precision LED bracket production process according to claim 4, characterized in that: A second sliding groove is formed on the facing sides of the two extension plates, and the second sliding groove is horizontally arranged. The first connecting rod and the third connection are rotatably connected by a second rotating shaft, and first rotating wheels are formed at both ends of the second rotating shaft. The first rotating wheel is located in the second sliding groove and is slidably connected. The second connecting rod and the fourth connection are rotatably connected by a third rotating shaft, and second rotating wheels are formed at both ends of the third rotating shaft. The second rotating wheel is located in the second sliding groove and is slidably connected.

6. The high-precision LED bracket production process according to claim 1, characterized in that: The step (S5) adopts a screening and sorting device for screening and packaging, and the screening and sorting device includes a first conveyor belt, a first camera, a fourth cylinder, a second conveyor belt, two fifth cylinders, a third conveyor belt and a fourth conveyor belt, the first camera is located above the input end of the first conveyor belt, the first conveyor belt is used to convey the LED bracket, the fourth cylinder is located on one side of the middle of the first conveyor belt, the fourth cylinder is used to push out unqualified LED brackets, the output end of the first conveyor belt is connected to the input end of the second conveyor belt, the output end of the second conveyor belt and the output end of the third conveyor belt are facing each other, the second conveyor belt and the third conveyor belt are arranged at intervals, the distance between the second conveyor belt and the third conveyor belt is greater than the width of the LED bracket, the two fifth cylinders are located on both sides of the gap between the second conveyor belt and the third conveyor belt, the output end of the fifth cylinder is connected to a blocking plate, the horizontal height of the upper surface of the blocking plate is lower than the horizontal height of the upper surfaces of the second conveyor belt and the third conveyor belt, the third conveyor belt is used to convey blocking paper, and the fourth conveyor belt is located below the gap between the second conveyor belt and the third conveyor belt.

7. The high-precision LED bracket production process according to claim 6, characterized in that: A first partition and a second partition are formed on both sides of the first conveyor belt, respectively. The first partition is formed with a first notch, and the second partition is formed with a second notch. The first notch and the second notch correspond to each other, and the output end of the fourth cylinder is located at the first notch. A third partition and a fourth partition are formed on both sides of the second conveyor belt and the third output belt respectively. The third partition is formed with a third gap, and the fourth partition is formed with a fourth gap. The output ends of the two fifth cylinders are respectively located at the third gap and the fourth gap.

8. The high-precision LED bracket production process according to claim 7, characterized in that: A transition rod is formed on the outward side of the output ends of the second conveyor belt and the third conveyor belt.

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