LED light splitting machine

Abstract

An LED light splitting machine relates to the technical field of industrial visual inspection and sorting, and comprises a central turntable, a testing mechanism, a blanking mechanism, a charging barrel mechanism and a shell, the charging barrel mechanism comprises a plurality of charging barrels, LED chips are orderly fed to the central turntable, the central turntable rotates to drive to-be-tested LED chips to pass through the testing mechanism, and the to-be-tested LED chips pass through the shell. The discharging mechanism sucks the LED chips into the corresponding charging barrels according to test results, the charging barrel mechanism is pulled out for replacement after the charging barrels are full, all the mechanisms are installed in the shell, the discharging mechanism comprises a material suction pipeline and a temporary storage tray, the material suction pipeline comprises an upper pipeline and a lower pipeline, a plurality of temporary storage cavities are formed in the temporary storage tray and correspond to the charging barrels one to one, and the upper pipeline is connected with the lower pipeline. When the charging barrel is replaced, the outlet of the temporary storage cavity is closed, so that the upper pipeline can continuously suck the LED chips and temporarily store the LED chips in the corresponding temporary storage cavity, and after the charging barrel is replaced, the outlet of the temporary storage cavity is opened to continuously discharge, so that frequent shutdown caused by replacement of the charging barrel is avoided, the production continuity is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of industrial visual inspection and sorting, and in particular to an LED spectrometer. Background Art

[0002] LED spectrometer is an automated device for testing and classifying LED chips. It loads the LED chips to be tested into the guide plate in an orderly manner through a vibration plate. As the guide plate rotates, the LED chips are sequentially subjected to positioning correction, spectroscopic testing, color testing, appearance testing and other mechanisms. The appearance and performance parameters of LED chips can be tested through industrial vision, wavelength detection, color testing and other means, so as to classify them. Finally, the LED chips are sucked into barrels with different BIN numbers according to the test results. The existing LED spectrometer can detect and sort tens of thousands of pieces per hour. Due to the limited capacity of the barrel, when facing high-speed LED chip sorting, the staff needs to frequently replace the barrel, and the replacement of the barrel requires stopping and waiting, resulting in frequent interruptions of the equipment's production process, which in turn affects the equipment's production efficiency. Summary of the invention

[0003] In view of this, the present invention provides an LED spectrometer, which does not need to stop and wait when replacing the barrel, and has higher production efficiency.

[0004] In order to achieve the above object, the present invention provides the following technical solutions.

[0005] The LED spectrometer includes a central turntable, a test mechanism, a feeding mechanism, a barrel mechanism and a shell. The barrel mechanism includes multiple barrels. The LED chips to be tested are fed to the central turntable in an orderly manner. The central turntable rotates to drive the LED chips to be tested to pass through the test mechanism. The feeding mechanism sucks the LED chips into the corresponding barrels according to the test results. When the barrels are full, the barrel mechanism is pulled out for replacement. Each mechanism is installed in the shell. The feeding mechanism includes: Suction pipes, which are provided in multiple numbers and correspond to the barrels one by one, the suction pipes include an upper pipe and a lower pipe, both of which are provided with an inlet and an outlet, and the upper pipe is connected to an external air extraction device; A temporary storage tray, which has multiple temporary storage chambers inside, each of which corresponds to a barrel, and each of which has an inlet and an outlet that are staggered in position, and the outlet can be opened and closed; The inlet of the upper pipe is aligned with the corresponding position of the central rotating disk, and the outlet of the upper pipe is connected to the inlet of the temporary storage chamber, so that the upper pipe can suck the LED chip into the corresponding temporary storage chamber, the inlet of the lower pipe is connected to the outlet of the temporary storage chamber, and the outlet of the lower pipe is connected to the corresponding barrel, so that the LED chip in the temporary storage chamber can fall into the corresponding barrel; When replacing the barrel, close the outlet of the temporary storage chamber so that the LED chips in the temporary storage chamber cannot enter the lower pipe. The upper pipe continues to suck in the LED chips and temporarily stores them in the corresponding temporary storage chamber. After the barrel is replaced, open the outlet of the temporary storage chamber, and the LED chips in the temporary storage chamber fall into the corresponding barrel after replacement through the lower pipe.

[0006] When the barrel needs to be replaced, the outlet of the temporary storage chamber is closed so that the upper pipe can continue to suck in the LED chips and temporarily store them in the corresponding temporary storage chamber. After the barrel is replaced, the outlet of the temporary storage chamber is opened to continue unloading, avoiding frequent equipment shutdowns due to barrel replacement, ensuring production continuity, and improving the production efficiency of the equipment.

[0007] Among them, the unloading mechanism also includes a lifting device for driving the lower pipeline to rise and fall, the lifting device includes a lifting assembly and a mounting plate, the lower pipeline is installed on the mounting plate and connected to an external air pumping device, the mounting plate is connected to the lifting assembly, when replacing the barrel, the lifting assembly drives the mounting plate to drive the lower pipeline to rise, and the external air pumping device connected to the lower pipeline synchronously pumps air, and the lower pipeline extends into the corresponding temporary storage cavity so that the inlet of the lower pipeline is higher than the outlet of the temporary storage cavity, and the LED chip in the temporary storage cavity cannot enter the lower pipeline. After the barrel is replaced, the lifting assembly drives the lower pipeline to descend so that the inlet of the lower pipeline is flush with the outlet of the temporary storage cavity, and the LED chip in the temporary storage cavity can pass through the lower pipeline and fall into the corresponding barrel after replacement.

[0008] Since the efficiency of the LED spectrometer is very high, a suction pipe may suck in several to dozens of LED chips per second. If a structure such as a blocking block is directly used to block the outlet of the suction pipe or the temporary storage chamber, the blocking block is easily stuck by the LED chip in the case of such dense LED chip unloading, resulting in a blocking failure and easy damage to the LED chip. The outlet of the temporary storage chamber is closed by lifting the lower pipe of the suction pipe so that its inlet is higher than the outlet of the temporary storage chamber, so that the LED chip will not be clamped. However, after the barrel is removed, the outlet of the lower pipe is directly connected to the outside without sealing. This will cause part of the airflow to flow through the lower pipe when the upper pipe absorbs the LED chip, and the upper pipe will not have enough suction to absorb the LED chip. Therefore, the lower pipe is also connected to the external exhaust device to prevent the airflow from flowing from the outlet of the lower pipe to the upper pipe and weakening the suction to absorb the LED chip.

[0009] Among them, the bottom surface of the temporary storage chamber is horizontal; or the bottom surface of the temporary storage chamber is inclined, and the outlet direction of the temporary storage chamber is higher than other positions of the bottom surface. If the bottom surface of the temporary storage chamber is inclined, and the outlet direction is lower, after the lower pipe rises so that the inlet of the lower pipe is higher than the outlet of the temporary storage chamber, the LED chip will easily rebound in the direction of the lower pipe after falling to the bottom surface of the temporary storage chamber, and may directly rebound to the inlet of the lower pipe and fall directly, but at this time the new barrel has not been replaced. After the LED chip falls from the outlet of the lower pipe, it will fall into the equipment, which will cause loss of the LED chip on the one hand, and may also damage the equipment on the other hand. By setting the bottom surface of the temporary storage chamber to be horizontal or inclined higher in the outlet direction, the LED chip will not rebound in the direction of the inlet of the lower pipe after being sucked into the temporary storage chamber, thereby preventing the LED chip from directly rebounding to the lower pipe and falling.

[0010] Among them, the unloading mechanism also includes a tray vibrator, which is fixedly connected to the temporary storage tray. After the barrel is replaced, the tray vibrator drives the temporary storage tray to vibrate to cause the LED chips in the temporary storage cavity to disperse and enter the entrance of the lower pipe. Since the upper pipe continues to suck the LED chips into the temporary storage cavity, if there are many LED chips unloaded during the period of replacing the barrel, the temporary storage cavity may be quickly filled up, and the continuously falling LED chips are constantly squeezed and may get stuck with each other in the temporary storage cavity or at the entrance of the temporary storage cavity. After replacing the barrel, the entrance of the lower pipe drops to be flush with the outlet of the temporary storage cavity and the LED chips cannot fall into the lower pipe. By setting the tray vibrator, after replacing the barrel, the temporary storage tray is driven to vibrate, and the LED chips that may be accumulated in the temporary storage cavity are dispersed and fall into the lower pipe. In addition to driving the temporary storage tray to vibrate after the barrel is replaced, it can also vibrate during the normal unloading process to assist the LED chips in the temporary storage cavity to move from the entrance to the outlet of the temporary storage cavity.

[0011] The lifting device is provided with a shock absorber, which is respectively connected to the mounting plate and the lifting assembly to absorb the vibration of the lower pipe and the lifting assembly from the tray vibrator. If the vibration generated by the tray vibrator is directly transmitted to the lower pipe and the lifting assembly, additional friction and wear will be generated between these components due to frequent relative vibration. The setting of the shock absorber can effectively absorb vibration, thereby reducing the wear of the lower pipe and the lifting assembly, extending their service life, and reducing the maintenance cost and replacement frequency of the equipment.

[0012] Among them, the lifting assembly includes a rotating handle, a push-pull rack, a transmission gear set and a lifting rack. The shell is provided with a through hole, and the rotating handle can be rotated and passed through the through hole to be connected with the push-pull rack. The transmission gear set includes a large gear and a small gear. The large gear is fixedly connected to the small gear, and the large gear is meshed with the push-pull rack, the small gear is meshed with the lifting rack, and the lifting rack is connected to the mounting disk. When replacing the barrel, the rotating handle is completely pulled out of the through hole and rotated so that the rotating handle is engaged with the through hole and cannot be retracted. During the process of pulling out the rotating handle, the push-pull rack is pulled to drive the large gear to drive the small gear to rotate, and the lifting rack is driven to rise by the small gear, so that the mounting disk drives the lower pipeline to rise. After the barrel is replaced, the rotating handle is rotated to release the engagement between the rotating handle and the through hole, and the rotating handle is retracted, so that the mounting disk can drive the lower pipeline to descend.

[0013] Through the meshing transmission of the gear and the rack, the linkage from pulling out the rotary handle to the rising of the mounting plate is realized, and the rotary handle is turned after pulling out so that it can be engaged with the through hole on the shell and cannot be retracted, thereby realizing the locking of the mounting plate after rising. The operator does not need to operate each component separately, which simplifies the preparation steps before replacing the barrel. Similarly, after the barrel is replaced, the operator turns the rotary handle again to release the engagement with the through hole of the shell and retract it. This reverse operation, through the same linkage mechanism, enables the mounting plate to drive the lower pipe to quickly descend back to the working position, so that the equipment can be quickly reset and the time required for replacing the barrel can be shortened.

[0014] Among them, the barrel mechanism also includes a barrel rack, and the mounting plate is also provided with an anti-fool baffle. The barrel mechanism is located below the mounting plate, and the anti-fool baffle extends downward to be able to contact the barrel rack. When replacing the barrel, before the mounting plate drives the lower pipeline to rise into place, the anti-fool baffle is in the range of contact with the barrel rack, so that the barrel rack cannot be pulled out. After the mounting plate drives the lower pipeline to rise into place, the anti-fool baffle is out of the range of contact with the barrel rack, so that the barrel rack can be pulled out. Before the mounting plate drives the lower pipeline to rise into place, the anti-fool baffle is always in contact with the barrel rack, effectively preventing the barrel rack from being accidentally pulled out when the conditions for replacing the barrel are not met, thereby avoiding problems such as material leakage and equipment damage caused by pulling out the barrel rack before the lower pipeline is in place.

[0015] The connection between the lower pipe and the external exhaust device is provided with a soft vent plug, and the vent plug is provided with vent holes. The suction force of the external exhaust device is likely to cause the LED chip to be accidentally sucked out when passing through the connection between the lower pipe and the external exhaust device, causing damage to the LED chip or blocking the external exhaust device. By providing the vent plug, it is ensured that the external exhaust device can effectively block the LED chip from being sucked out from the connection while suctioning normally, preventing the LED chip from being damaged or blocking the external exhaust device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the LED spectrometer of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the LED spectrometer of the present invention after the shell is hidden.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the LED spectrometer of the present invention after the housing is hidden from another viewing angle.

[0019] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0020] Figure 5 The LED spectrometer of the present invention is Figure 2 Front view of the state (part of the upper pipe has been cut off for easy display).

[0021] Figure 6 For along Figure 5 Cross-sectional view along the BB direction.

[0022] Figure 7 The LED spectrometer of the present invention is Figure 5 A cross-sectional view along the BB direction after the lower pipeline is driven up by the lifting device on the foundation.

[0023] Reference numerals include: Unloading mechanism 1, suction pipe 11, upper pipe 111, upper air outlet 1111, lower pipe 112, air hole plug 113, air hole 1131, temporary storage tray 12, temporary storage chamber 121, anti-collision sponge 1211, upper cover 122, bottom plate 123, rotating handle 13, push-pull rack 14, large gear 15, small gear 16, lifting rack 17, mounting plate 18, anti-fool baffle 19; Feed tray vibrator 20, shock absorber 21; Central turntable 3, barrel mechanism 4, barrel 41, barrel frame 42, shell 5. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with specific embodiments.

[0025] Combination Figure 1-Figure 5The LED spectrometer of this embodiment includes a central turntable 3, a testing mechanism (not shown in the figure), a feeding mechanism 1, a barrel mechanism 4 and a housing 5. The barrel mechanism 4 includes a plurality of barrels 41. The LED chips to be tested are fed to the central turntable 3 in an orderly manner. The central turntable 3 rotates to drive the LED chips to be tested through the testing mechanism. The feeding mechanism 1 sucks the LED chips into the corresponding barrels 41 according to the test results. After the barrels 41 are full, the barrel mechanism 4 is pulled out for replacement. Each mechanism is installed in the housing 5. The feeding mechanism 1 includes a suction pipe 11 and a temporary storage tray 12. There are multiple suction pipes 11 and they correspond one to one with the barrels 41. The number of suction pipes 11 is specifically set according to the actual situation of the LED chips and will not be described in detail here. Figure 3 As shown, the suction pipe 11 includes an upper pipe 111 and a lower pipe 112, both of which are provided with an inlet and an outlet, and the upper pipe 111 is provided with an upper air suction port 1111, which is connected to an external air suction device. Figure 5-Figure 7 The temporary storage tray 12 is composed of an upper cover 122 and a bottom plate 123, which can be fixed by screws or bolts. A plurality of temporary storage chambers 121 are arranged inside the temporary storage tray 12. The temporary storage chambers 121, the barrel 41 and the suction pipe 11 all correspond to each other. The temporary storage chamber 121 is provided with an inlet and an outlet at different positions, and the outlet can be opened and closed. The inlet of the upper pipe 111 is aligned with the corresponding position of the central rotating disk 3, and the outlet of the upper pipe 111 is connected to the inlet of the temporary storage chamber 121, so that the upper pipe 111 can suck the LED chip into the corresponding temporary storage chamber 121. The upper end of the lower pipe 112 is slidably connected to the bottom plate 123 of the temporary storage tray 12 through a sealing ring and a sealing cover plate, so that the inlet of the lower pipe 112 is connected to the outlet of the temporary storage chamber 121, and the outlet of the lower pipe 112 is connected to the corresponding barrel 41, so that the LED chip in the temporary storage chamber 121 can fall into the corresponding barrel 41.

[0026] When replacing the barrel 41, the outlet of the temporary storage chamber 121 is closed, so that the LED chip in the temporary storage chamber 121 cannot enter the lower pipe 112, and the upper pipe 111 continues to absorb the LED chip and temporarily store it in the corresponding temporary storage chamber 121. After the barrel 41 is replaced, the outlet of the temporary storage chamber 121 is opened, and the LED chip in the temporary storage chamber 121 falls into the corresponding barrel 41 after replacement through the lower pipe 112. When it is necessary to replace the barrel 41, by closing the outlet of the temporary storage chamber 121, the upper pipe 111 can continue to absorb the LED chip and temporarily store it in the corresponding temporary storage chamber 121. After the barrel 41 is replaced, the outlet of the temporary storage chamber 121 is opened to continue unloading, avoiding frequent equipment shutdowns due to the replacement of the barrel 41, ensuring the continuity of production, and improving the production efficiency of the equipment.

[0027] Since the efficiency of the LED spectrometer is very high, a suction pipe 11 may suck several to dozens of LED chips per second. If a structure such as a blocking block is directly used to block the outlet of the suction pipe 11 or the temporary storage chamber 121 to close the outlet of the temporary storage chamber 121, the blocking block is easily stuck by the LED chip when the LED chips are unloaded so densely, resulting in a blocking failure and easily damaging the LED chip. Figure 5-Figure 7 The unloading mechanism 1 also includes a lifting device for driving the lower pipe 112 to rise and fall, the lifting device includes a lifting assembly and a mounting plate 18, the lower pipe 112 is fixedly connected to the mounting plate 18, the lower pipe 112 is provided with a lower air suction port, the lower air suction port is connected to an external air suction device, the mounting plate 18 is connected to the lifting assembly, and the top surface of the temporary storage chamber 121 is provided with an anti-collision sponge 1211. When the barrel 41 is replaced, the lifting assembly drives the mounting plate 18 to drive the lower pipe 112 to rise, and the external air suction device connected to the lower pipe 112 is synchronously exhausted, and the lower pipe 112 extends into the corresponding temporary storage chamber 121, so that the inlet of the lower pipe 112 is higher than the outlet of the temporary storage chamber 121, and the outlet of the temporary storage chamber 121 is closed, so that the LED chip in the temporary storage chamber 121 cannot enter the lower pipe 112. Figure 7 As shown. The lower pipe 112 rises to the extent that the entrance of the lower pipe 112 is close to but not in contact with the top surface of the temporary storage chamber 121, so that the LED chip will not be clamped, and the narrow gap makes it almost impossible for the rebounding LED chip to pass through. In addition, the anti-collision sponge 1211 provided can further protect the LED chip, so that even if the LED chip is clamped, it will not be damaged. After the barrel 41 is replaced, the lifting assembly drives the lower pipe 112 to descend, so that the entrance of the lower pipe 112 is flush with the exit of the temporary storage chamber 121, and the exit of the temporary storage chamber 121 is opened, so that the LED chip in the temporary storage chamber 121 can pass through the lower pipe 112 and fall into the corresponding barrel 41 after replacement.

[0028] The outlet of the temporary storage chamber 121 is closed by lifting the lower pipe 112 of the suction pipe 11 so that its inlet is higher than the outlet of the temporary storage chamber 121, so that the LED chip will not be clamped. However, after the barrel 41 is removed, the outlet of the lower pipe 112 is directly connected to the outside without being sealed, which will cause a part of the airflow to flow through the lower pipe 112 when the upper pipe 111 absorbs the LED chip, and the suction force of the upper pipe 111 to absorb the LED chip is insufficient. Therefore, by connecting the lower pipe 112 to the external suction device, when the external suction device connected to the lower pipe 112 and the external suction device connected to the upper pipe 111 are simultaneously sucked, the upper pipe 111 and the lower pipe 112 are sucked at the same time, and the air in the temporary storage chamber 121 between the upper pipe 111 and the lower pipe 112 will be quickly and completely sucked out, so that no airflow will flow from the lower pipe 112 to the upper pipe 111, thereby preventing the airflow from the outlet of the lower pipe 112 to the upper pipe 111 and weakening the suction force to absorb the LED chip. Moreover, after the lower pipe 112 is also equipped with an exhaust port, there is no need to seal the outlet of the lower pipe 112 and the barrel 41 (sealing is required in the prior art, otherwise it will divert and weaken the suction force on the LED chip). This saves the trouble of removing the seal from the barrel 41 filled with LED chips and resealing after replacing the new barrel 41, thereby shortening the time required to replace the barrel.

[0029] Combination Figure 2 and Figure 3 The lifting assembly of this embodiment includes a rotating handle 13, a push-pull rack 14, a transmission gear set and a lifting rack 17. The housing 5 is provided with a through hole (not shown in the figure). The rotating handle 13 passes through the through hole to connect with the push-pull rack 14, and the rotating handle 13 itself can rotate. The transmission gear set includes a large gear 15 and a small gear 16. The large gear 15 is fixedly connected with the small gear 16, and the large gear 15 is meshed with the push-pull rack 14, and the small gear 16 is meshed with the lifting rack 17. The lifting rack 17 is fixedly connected with the mounting plate 18. When replacing the barrel 41, The rotating handle 13 is completely pulled out from the through hole and rotated so that the rotating handle 13 is engaged with the through hole and cannot be retracted. During the process of pulling out the rotating handle 13, the push-pull rack 14 is pulled to drive the large gear 15 to drive the small gear 16 to rotate, and the lifting rack 17 is driven to rise by the small gear 16, so that the installation disk 18 drives the lower pipe 112 to rise. After the barrel 41 is replaced, the rotating handle 13 is rotated to release the engagement with the through hole, and the rotating handle 13 is retracted, so that the installation disk 18 can drive the lower pipe 112 to descend.

[0030] Through the meshing transmission of the gear and the rack, the linkage from pulling out the rotating handle 13 to the rising of the mounting disk 18 is realized, and after pulling out, the rotating handle 13 is rotated to make it engage with the through hole on the shell 5 and cannot be retracted, thereby realizing the locking of the mounting disk 18 after rising. Through these linkage mechanisms, the operator does not need to operate each component separately, which simplifies the preparation steps before replacing the barrel 41. Similarly, after the barrel 41 is replaced, the operator rotates the rotating handle 13 again to release the engagement with the through hole of the shell 5 and retract it. This reverse operation, through the same linkage mechanism, enables the mounting disk 18 to drive the lower pipe 112 to quickly descend back to the working position, which can quickly complete the resetting of the equipment and shorten the time required to replace the barrel 41.

[0031] If the bottom surface of the temporary storage chamber 121 is inclined and the outlet direction is lower, after the lower pipe 112 rises so that the entrance of the lower pipe 112 is higher than the exit of the temporary storage chamber 121, the LED chip will easily rebound toward the lower pipe 112 after falling to the bottom surface of the temporary storage chamber 121, and may directly rebound to the entrance of the lower pipe 112 and fall directly, but at this time the new barrel 41 has not been replaced, and the LED chip will fall into the device after falling from the exit of the lower pipe 112, which will cause loss of the LED chip on the one hand, and may also damage the device on the other hand. In this embodiment, if Figure 6-Figure 7 As shown, the bottom surface of the temporary storage cavity 121 is horizontal, so that even if the LED chip is sucked into the temporary storage cavity 121 and rebounds, the possibility of it directly rebounding into the inlet of the lower pipe 112 is also very low. In another embodiment, the bottom surface of the temporary storage cavity 121 can be inclined, and the outlet direction is higher than other positions of the bottom surface, so that even if the LED chip rebounds, it will not rebound in the direction of the outlet of the temporary storage cavity 121. By setting the bottom surface of the temporary storage cavity 121 to be horizontal or inclined higher in the outlet direction, the LED chip will not rebound in the direction of the outlet of the temporary storage cavity 121 after being sucked into the temporary storage cavity 121, thereby preventing the LED chip from directly rebounding to the inlet of the lower pipe 112 and falling.

[0032] Since the upper pipe 111 continuously draws LED chips into the temporary storage chamber 121, if a lot of LED chips are unloaded during the period of replacing the barrel 41, the temporary storage chamber 121 may be quickly filled up, and the continuously falling LED chips are constantly squeezed and may get stuck in the temporary storage chamber 121 or at the entrance of the temporary storage chamber 121. After replacing the barrel 41, the entrance of the lower pipe 112 drops to be flush with the outlet of the temporary storage chamber 121, and the LED chips cannot fall into the lower pipe 112. Figure 2 and Figure 3As shown, the unloading mechanism 1 of this embodiment further includes a tray vibrator 20. The bottom of the tray vibrator 20 is fixedly connected to the housing 5, and the upper part is fixedly connected to the temporary storage tray 12. After the barrel 41 is replaced, the tray vibrator 20 drives the temporary storage tray 12 to vibrate, so as to cause the LED chips in the temporary storage cavity 121 to disperse and enter the entrance of the lower pipe 112. By providing the tray vibrator 20, after the barrel 41 is replaced, the temporary storage tray 12 is driven to vibrate, and the LED chips that may be accumulated in the temporary storage cavity 121 are vibrated and fall into the lower pipe 112. In addition to driving the temporary storage tray 12 to vibrate after the barrel 41 is replaced, it can also vibrate during the normal unloading process to assist the LED chips in the temporary storage cavity 121 to move from the entrance to the exit of the temporary storage cavity 121.

[0033] Since the tray vibrator 20 is provided, if the vibration generated by the tray vibrator 20 is directly transmitted to the lower pipe 112 and the lifting assembly, additional friction and wear will be generated between these components due to frequent relative vibrations. Figure 2 and Figure 3 As shown, the lifting device of this embodiment is provided with a shock absorber 21, the upper end of the shock absorber 21 is connected to the mounting plate 18, and the lower end of the shock absorber 21 is connected to the lifting rack 17 through a mounting plate (not shown in the figure) to absorb the vibration of the lower pipe 112 and the lifting assembly from the material tray vibrator 20. The setting of the shock absorber 21 can effectively absorb vibration, thereby reducing the wear of the lower pipe 112 and the lifting assembly, extending their service life, and reducing the maintenance cost and replacement frequency of the equipment.

[0034] If the barrel mechanism 4 is pulled out before the lower pipe 112 is raised to its proper position, the LED chip may fall directly into the device, causing material leakage and device damage. Figure 2 and Figure 3 As shown, the barrel mechanism 4 of this embodiment also includes a barrel rack 42, and the mounting plate 18 is also provided with an anti-fool baffle 19. The barrel mechanism 4 is located below the mounting plate 18, and the anti-fool baffle 19 extends downward to be able to contact the barrel rack 42. When replacing the barrel 41, before the mounting plate 18 drives the lower pipe 112 to rise into place, the anti-fool baffle 19 is in the contact range with the barrel rack 42. At this time, if the barrel rack 42 is pulled outward, it will be stuck by the anti-fool baffle 19, making it impossible for the barrel rack 42 to be pulled out. After the mounting plate 18 drives the lower pipe 112 to rise into place, the anti-fool baffle 19 is out of the contact range with the barrel rack 42, and the barrel rack 42 can be smoothly pulled out. Before the mounting plate 18 drives the lower pipe 112 to rise into place, the fool-proof baffle 19 is always in contact with the barrel rack 42, effectively preventing the barrel mechanism 4 from being accidentally pulled out when the condition for replacing the barrel 41 is not met, thereby avoiding problems such as material leakage and equipment damage that may result from pulling out the barrel mechanism 4 before the lower pipe 112 is in place.

[0035] The suction force of the external exhaust device is likely to cause the LED chip to be accidentally sucked out when passing through the connection between the lower pipe 112 and the external exhaust device (lower exhaust port), causing damage to the LED chip or blocking the external exhaust device. Figure 3 and Figure 4 In this embodiment, a soft vent plug 113 is provided at the connection between the lower pipe 112 and the external air extraction device. The vent plug 113 is provided with an air hole 1131. When the lower pipe inhales air, the airflow enters from the air hole 1131, and the LED chip is blocked by the vent plug 113. By providing the vent plug 113, it is ensured that the external air extraction device can effectively block the LED chip from being sucked out from the connection while inhaling air normally, thereby preventing the LED chip from being damaged or blocking the external air extraction device. Of course, the upper air extraction port 1111 can also be provided with a vent plug 113.

[0036] The specific working process of the LED spectrometer in this embodiment is as follows: The LED chips to be tested are first loaded onto the central turntable 3 in order, and then the central turntable 3 rotates, driving the chips to pass through the testing mechanism in turn for testing. The central turntable 3 continues to rotate, and the tested LED chips are transferred to the corresponding position of the entrance of the upper pipe 111. The corresponding upper pipe 111 sucks the tested chips into the corresponding temporary storage chamber 121. The outlet of the temporary storage chamber 121 can be closed and opened. Under normal circumstances, the chips in the temporary storage chamber 121 can fall into the corresponding barrel 41 through the outlet through the lower pipe 112. The lower pipe 112 is also connected to the external exhaust device. The upper pipe 111 and the lower pipe 112 are exhausted synchronously to ensure stable suction. When the barrel 41 is full and needs to be replaced, the rotating handle 13 is pulled outward to make the mounting plate 18 drive the lower pipe 112 to rise. At this time, the entrance of the lower pipe 112 is higher than the exit of the temporary storage chamber 121, preventing the LED chip from entering the lower pipe 112. At the same time, the upper pipe 111 continues to suck the chip into the temporary storage chamber 121, and the bottom surface of the temporary storage chamber 121 is designed to be horizontal or inclined in the direction of the exit to prevent the chip from rebounding into the lower pipe 112. After the barrel 41 is replaced, the lower pipe 112 descends, and the tray vibrator 20 vibrates to assist the LED chip in the temporary storage chamber 121 to unload, and the LED chip in the temporary storage chamber 121 falls into the replaced barrel 41. During the whole process, the vibration damper 21 absorbs the vibration of the tray vibrator 20, the foolproof baffle 19 prevents the barrel mechanism 4 from being pulled out at an inappropriate time, and the air vent plug 113 at the connection between the lower pipe 112 and the external air extraction device prevents the LED chip from being sucked out.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. An LED spectrometer, comprising a central turntable, a testing mechanism, a feeding mechanism, a barrel mechanism and a housing. The barrel mechanism comprises a plurality of barrels. The LED chips to be tested are fed to the central turntable in an orderly manner. The central turntable rotates to drive the LED chips to be tested through the testing mechanism. The feeding mechanism sucks the LED chips into the corresponding barrels according to the test results. When the barrels are full, the barrel mechanism is pulled out for replacement. Each mechanism is installed in the housing, characterized in that: The unloading mechanism includes: Suction pipes, which are provided in multiple numbers and correspond to the barrels one by one, the suction pipes include an upper pipe and a lower pipe, both of which are provided with an inlet and an outlet, and the upper pipe is connected to an external air extraction device; A temporary storage tray, which has multiple temporary storage chambers inside, each of which corresponds to a barrel, and each of which has an inlet and an outlet that are staggered in position, and the outlet can be opened and closed; The inlet of the upper pipe is aligned with the corresponding position of the central rotating disk, and the outlet of the upper pipe is connected to the inlet of the temporary storage chamber, so that the upper pipe can suck the LED chip into the corresponding temporary storage chamber, the inlet of the lower pipe is connected to the outlet of the temporary storage chamber, and the outlet of the lower pipe is connected to the corresponding barrel, so that the LED chip in the temporary storage chamber can fall into the corresponding barrel; When replacing the barrel, close the outlet of the temporary storage chamber so that the LED chips in the temporary storage chamber cannot enter the lower pipe. The upper pipe continues to suck in the LED chips and temporarily stores them in the corresponding temporary storage chamber. After the barrel is replaced, open the outlet of the temporary storage chamber, and the LED chips in the temporary storage chamber fall into the corresponding barrel after replacement through the lower pipe.

2. The LED spectrometer according to claim 1, characterized in that: The unloading mechanism also includes a lifting device for driving the lower pipeline to rise and fall. The lifting device includes a lifting assembly and a mounting plate. The lower pipeline is installed on the mounting plate and connected to an external air pumping device. The mounting plate is connected to the lifting assembly. When replacing the barrel, the lifting assembly drives the mounting plate to drive the lower pipeline to rise, and the external air pumping device connected to the lower pipeline synchronously pumps air. The lower pipeline extends into the corresponding temporary storage cavity so that the inlet of the lower pipeline is higher than the outlet of the temporary storage cavity, and the LED chip in the temporary storage cavity cannot enter the lower pipeline. After the barrel is replaced, the lifting assembly drives the lower pipeline to descend so that the inlet of the lower pipeline is flush with the outlet of the temporary storage cavity, and the LED chip in the temporary storage cavity can pass through the lower pipeline and fall into the corresponding barrel after replacement.

3. The LED spectrometer according to claim 2, characterized in that: The bottom surface of the temporary storage chamber is horizontal; or the bottom surface of the temporary storage chamber is inclined, and the outlet direction of the temporary storage chamber is higher than other positions of the bottom surface.

4. The LED spectrometer according to claim 2, characterized in that: The unloading mechanism also includes a tray vibrator, which is fixedly connected to the temporary storage tray. After the barrel is replaced, the tray vibrator drives the temporary storage tray to vibrate to cause the LED chips in the temporary storage cavity to disperse and enter the entrance of the lower pipe.

5. The LED spectrometer according to claim 4, characterized in that: The lifting device is provided with a shock absorber, which is respectively connected to the mounting plate and the lifting assembly to absorb the vibration of the lower pipeline and the lifting assembly from the material plate vibrator.

6. The LED spectrometer according to claim 2, characterized in that: The lifting assembly includes a rotating handle, a push-pull rack, a transmission gear set and a lifting rack. The shell is provided with a through hole, and the rotating handle can be rotated and passed through the through hole to be connected with the push-pull rack. The transmission gear set includes a large gear and a small gear. The large gear is fixedly connected to the small gear, and the large gear is meshed with the push-pull rack, and the small gear is meshed with the lifting rack. The lifting rack is connected to the mounting plate. When replacing the barrel, the rotating handle is completely pulled out of the through hole and rotated so that the rotating handle is engaged with the through hole and cannot be retracted. During the process of pulling out the rotating handle, the push-pull rack is pulled to drive the large gear to drive the small gear to rotate, and the lifting rack is driven to rise by the small gear, so that the mounting plate drives the lower pipeline to rise. After the barrel is replaced, the rotating handle is rotated to release the engagement between the rotating handle and the through hole, and the rotating handle is retracted, so that the mounting plate drives the lower pipeline to descend.

7. The LED spectrometer according to claim 2, characterized in that: The barrel mechanism also includes a barrel rack, and the mounting plate is also provided with an anti-fool baffle. The barrel mechanism is located below the mounting plate, and the anti-fool baffle extends downward to be able to contact the barrel rack. When replacing the barrel, before the mounting plate drives the lower pipeline to rise into place, the anti-fool baffle is in the contact range with the barrel rack to prevent the barrel rack from being pulled out. After the mounting plate drives the lower pipeline to rise into place, the anti-fool baffle is out of the contact range with the barrel rack to allow the barrel rack to be pulled out.

8. The LED spectrometer according to claim 2, characterized in that: A soft air vent plug is provided at the connection between the lower pipeline and the external air extraction device, and an air vent plug is provided with an air vent.

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