CN115971107A - Particle detection equipment and process after injection molding of LED bracket - Google Patents

Abstract

The invention relates to a particle detection device and a particle detection process after injection molding of an LED bracket, and belongs to the technical field of semiconductor devices.

Description

Particle detection equipment and process after injection molding of LED bracket

Technical Field

The invention belongs to the technical field of semiconductor devices, and particularly relates to particle detection equipment and a particle detection process after injection molding of an LED bracket.

Background

The method comprises the steps that after an injection mold base on the surface of a traditional LED support belt is subjected to a bending process, the traditional LED support belt is cut into pieces after being bent, then the LED support pieces one by one are detected, whether the injection mold base on the LED support pieces is defective or not is detected, the defects are collected together, and qualified LED support pieces are collected together, the detection method is poor in detection accuracy and low in efficiency, for example, the invention patent publication No. CN111162030A in China provides LED support defect detection and elimination equipment which can detect defects of the material belt and eliminate defective particles, the detection equipment is high in detection accuracy, the efficiency is due to the traditional detection method, but the technical problem exists in the traditional detection method, namely, when two or more defects occur on the same row of injection mold bases, one defect is required to be eliminated, and the defect mold bases in the same row cannot be eliminated at one time, and accordingly, the scheme is developed.

Disclosure of Invention

In view of the defects of the prior art, the technical problem to be solved by the invention is to provide the particle detection equipment and the particle detection process after the injection molding of the LED bracket, which can simultaneously remove a plurality of defective die holders in the same row of the LED bracket at one time.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a granule check out test set after LED support injection moulding, includes the determine module and rejects the subassembly, the determine module is located and rejects subassembly input one side, it includes that first rejection part, a plurality of second reject part and promotion part to reject the subassembly, first rejection part includes first sticky roller, surface contact on first sticky roller surface and the LED support, the part is rejected including bearing pedestal, knockout rod and connecting piece, each to the second the connection between knockout rod and the promotion part passes through connecting piece control, the promotion part is through promoting connecting piece and knockout rod downstream.

Further, first rejection part still includes scraper blade and collecting vat, first sticky roller includes first roller and cotton rubber sleeve, the surface at first roller is established to cotton rubber sleeve cover, scraper blade fixed connection is on the collecting vat, scraper blade one end supports the surface of cotton rubber sleeve.

Furthermore, the bearing seat body is provided with a moving channel, the opening of the moving channel is positioned on the bottom surface of the bearing seat body, the ejector rod is positioned in the moving channel and is in sliding connection with the moving channel, the bearing seat body is further provided with a first cavity, the first cavity is positioned on one side of the moving channel, a communication gap is arranged between the moving channel and the first cavity, the pushing component is positioned in the first cavity, the connecting piece is positioned on the ejector rod, and the connecting piece can stretch into or withdraw from the first cavity.

Further, the knock-out pole is equipped with the holding hole, it has the installation cavity to bear the pedestal, the installation cavity is located one side that the first cavity was kept away from to the knock-out pole, the connecting piece is including slip post and positive negative pole electromagnetic plate, the slip post is located the holding downthehole and sliding connection, positive negative pole electromagnetic plate is located the installation cavity, the slip post has set firmly the magnetite towards the one side of positive negative pole electromagnetic plate.

Further, the knockout rod is equipped with the holding hole, it has the installation cavity to bear the pedestal, the installation cavity is located the knockout rod and keeps away from one side of first cavity, the connecting piece is including removing post, magnetic path and drive cylinder body, it is located the holding downthehole and sliding connection to remove the post, it is equal to or less than the holding hole degree of depth to remove post length, drive cylinder body and magnetic path are located the installation cavity, magnetic path one end actuation is at the drive cylinder body output, the actuation of the magnetic path other end is at the removal post terminal surface.

Furthermore, chamfers are formed at the edges of two end faces of the magnetic block.

Further, the pushing component is a pushing cylinder body, the output end of the pushing cylinder body is connected with a top abutting plate, and the horizontal plane projection of the lower surface of the top abutting plate covers the horizontal plane projection of the first cavity.

Furthermore, the second eliminating component further comprises an elastic sleeve, a necking is arranged at the opening of the moving channel, the ejection rod comprises a sliding portion and an ejection portion, the diameter of the sliding portion is the same as that of the moving channel, the ejection portion is connected to the lower surface of the sliding portion, the diameter of the ejection portion is smaller than that of the sliding portion, and the elastic sleeve is sleeved on the ejection portion.

Furthermore, the bottom of the moving channel is provided with a magnetic attraction body, and the ejection rod is made of a ferromagnetic material.

Further, the particle detection equipment still includes the removal subassembly, it includes two first conveyer belts, two second conveyer belts and stamping platform to remove the subassembly, stamping platform is located between first conveyer belt and the second conveyer belt, two first conveyer belt interval sets up, two second conveyer belt interval sets up, first conveyer belt and second conveyer belt surface are formed with a plurality of blocks of stirring, stir the block and be used for stirring LED support area.

A particle detection process for an LED bracket after injection molding comprises the following steps:

s1, detecting a defect die holder on an LED support belt by the LED support belt through a detection assembly;

s2, the detection assembly sends the detection signal to a control system, and the control system sends an execution signal to the rejection assembly;

and S3, the LED support belt moves to the position below the rejecting assembly, and the rejecting assembly rejects the defective die holder through a second rejecting component corresponding to the defective die holder.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a particle detection device and a particle detection process after injection molding of an LED bracket, wherein a first gluing roller of a first rejection part rolls over an LED bracket belt, a die holder with infirm shape can be directly glued or obviously misplaced, then the die holder on the LED bracket belt is detected through a detection assembly, whether the die holder subjected to injection molding is defective or not is detected, the detection assembly sends information to a control assembly after detection is finished, then the control assembly is executed by the rejection assembly, the LED bracket belt passes through the rejection assembly intermittently at equal intervals, the distance of each movement is equal to that of each row of die holders, a plurality of second rejection parts correspond to a plurality of die holders in the same row, a connecting piece in the second rejection part corresponding to the defective die holder is connected with an ejector rod and a pushing part, and the pushing part pushes one or a plurality of connecting pieces to move downwards at the same time, so that the ejector rod moves downwards to eject out the defective die holders.

2. The two structures of eliminating the parts for the second are provided in the scheme and used for realizing the effect of eliminating simultaneously, and the first mode is as follows: the sliding column is located in the containing hole of the ejector rod in the single second rejection part, one end of the sliding column is fixedly provided with a magnet, the magnet is an anode or a cathode towards the outer surface, the anode and cathode electromagnetic plates enable the anode and cathode electromagnetic plates to become the anode through changing the current flow direction, the magnet of the sliding column is also an anode, under the action of like-polarity repulsion, the sliding column is partially ejected out of the first cavity, the cylinder body is pushed to push the single or multiple sliding columns extending into the first cavity to move downwards, so that the ejector rod is driven to move downwards, the single rejection or multiple simultaneous rejection functions are realized, when the cylinder body is pushed to retract, the ejector rod resets under the action of the elastic sleeve until the ejector rod is adsorbed by the magnetic attraction body to realize accurate reset, then the anode and cathode electromagnetic plates enable the anode and cathode electromagnetic plates to become cathodes through changing the current flow direction, the sliding column retracts into the containing hole, and waits for next assignment.

3. The structure that provides two kinds of second rejection parts in this scheme is used for realizing the effect of rejecting simultaneously, and second kind mode is as follows: the single second eliminating component is internally provided with a moving column which is positioned in a containing hole of the ejector rod, a driving cylinder body and a magnetic block are arranged in the installation cavity, when the ejector rod needs to be ejected, the output end of the driving cylinder body is ejected out, the magnetic block is completely ejected into the containing hole, but the driving cylinder body does not extend into the containing hole, due to the movement of the magnetic block, the moving rod is ejected into the first cavity, the driving cylinder body is pushed to move downwards to push the moving rod, the magnetic block is connected with the output end of the driving cylinder body through magnetic force, when the magnetic block receives downward driving force, the magnetic block is separated from the output end of the driving cylinder body, the ejector rod is ejected downwards, the driving cylinder body is reset, the ejector rod resets under the action of an elastic sleeve, until the ejector rod is adsorbed by the magnetic absorber to realize accurate reset, the magnetic block is then attracted with the output end of the driving cylinder body, and the driving cylinder body retracts to drive the magnetic block and the moving column.

Drawings

FIG. 1 is a schematic perspective view of a particle detection device after injection molding of an LED bracket according to the present invention;

FIG. 2 is a schematic front view of a particle detection device after injection molding of an LED bracket according to the present invention;

FIG. 3 is a schematic cross-sectional view of a first rejection member according to the present invention;

FIG. 4 is a schematic cross-sectional structural view of a particle detection device after injection molding of an LED bracket according to the present invention;

FIG. 5 is a schematic cross-sectional view of a rejection assembly according to embodiment 1 of the present invention;

FIG. 6 is a schematic cross-sectional view of a second reject member of the reject assembly according to embodiment 1 of the present invention;

FIG. 7 is a schematic cross-sectional view of a rejection assembly in accordance with embodiment 2 of the present invention;

FIG. 8 is a schematic cross-sectional view of a second reject member of the reject assembly in accordance with embodiment 2 of the present invention;

fig. 9 is a schematic top view of an LED support strip of the present invention.

The mark in the figure is: 1. a moving assembly; 11. a first conveyor belt; 12. a second conveyor belt; 13. a shifting block; 14. a stamping platform; 141. a waste inlet; 2. a detection component; 3. rejecting components; 31. a bearing seat body; 311. a moving channel; 3111. a magnetic body; 312. a first chamber; 313. a communication gap; 314. a housing hole; 32. ejecting the rod; 321. a sliding part; 322. a push-out part; 33. a connecting member; 331. a sliding post; 3311. a magnet; 332. positive and negative electromagnetic plates; 333. moving the column; 334. a magnetic block; 335. a drive cylinder; 34. pushing the cylinder body; 341. abutting against the top plate; 35. an elastic sleeve; 36. a first adhesive roll; 361. a first roller; 3611. a glue outlet channel; 362. a cotton gum cover; 37. a squeegee; 38. collecting tank; 4. an LED support band; 41. a die holder; 42. and (6) shifting the notch.

Detailed Description

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

Examples

As shown in fig. 1 to 6 and 9, the present embodiment provides a particle detection apparatus after injection molding of an LED support, which includes a moving assembly 1, a control system, a detection assembly 2 and a removing assembly 3.

LED support area 4 upper surface both sides are formed with a plurality of breach 42 of stirring, a plurality of breach 42 of stirring set up along 4 length direction intervals of LED support area, the multirow base has on the LED support area 4, every row of base quantity is a plurality of, every row of base quantity is set for according to the demand, specification commonly used is 4-16, LED support area 4 is driven by removal subassembly 1 and is detected through detection device, then send signal for control system, control system controls according to testing result and rejects subassembly 3.

The movable assembly 1 comprises two first conveying belts 11, two second conveying belts 12 and a stamping platform 14, two ends of the two first conveying belts 11 and the two second conveying belts 12 are connected with driving belt pulleys in an inner side mode, a plurality of bearing wheels are arranged between the two driving belt pulleys, the LED support belt 4 is prevented from collapsing, the stamping platform 14 is located between the first conveying belts 11 and the second conveying belts 12, the stamping platform 14 is provided with a collection cavity, the upper surface of the bearing platform is provided with a waste inlet 141, the waste inlet 141 is communicated with the collection cavity, the two first conveying belts 11 are arranged at intervals, the two second conveying belts 12 are arranged at intervals, a plurality of poking blocks 13 are formed on the surfaces of the first conveying belts 11 and the second conveying belts 12, the poking blocks 13 are used for poking the LED support belt 4, the poking blocks 13 correspond to poking gaps 42 of the LED support belt 4, and poking of the LED support belt 4 is achieved by the poking blocks 13 extending into the poking gaps 42. The detection assembly 2 comprises a camera which is positioned above the first conveying belt 11 and shoots the end towards the first conveying belt 11.

When LED support area 4 entered into first conveyer belt 11, dial 13 upper surface projection area and be less than stir breach 42 projection area, dial entering into that piece 13 can be good stir breach 42 in, dial piece 13 and stretch into stir breach 42 in, stir 4 check of LED support area and impel forward, it is exactly that next row of base is located stamping platform 14's waste material import 141 department to impel the distance at every turn, the camera shoots LED support area 4 and detects, transmission information gives control system, then through stamping platform 14, the part is rejected with defect die holder 41 to the second, then carry out away from second conveyer belt 12.

The rejection assembly 3 is located above the stamping platform 14, the rejection assembly 3 comprises a first rejection component, a plurality of second rejection components and a pushing component, the first rejection component comprises a first gluing roller 36, a scraper 37 and a collecting tank 38. First gluing roller 36 includes first roller 361 and cotton cover 362, the surface at first roller 361 is established to cotton cover 362 cover, scraper blade 37 fixed connection is on collecting vat 38, scraper blade 37 one end supports the surface of a cotton section of thick bamboo, and specifically, first roller 361 is the warming mill that has the heating function, and first roller 361 upper peripheral face is provided with a plurality of gluey passageways 3611 that go out, and the hot melt adhesive flows to supplying glue on the cotton cover 362 from going out gluey passageway 3611, when gluing the die holder on cotton cover 362, can be scraped by scraper blade 37 and fall to collecting vat 38 and collect.

The second rejecting component includes a bearing seat 31, an ejector rod 32, an elastic sleeve 35 and a connecting component 33, the connection between each ejector rod 32 and the pushing component is controlled by the connecting component 33, the pushing component moves downward through the pushing connecting component 33 and the ejector rod 32, specifically, the bearing seat 31 is provided with a moving channel 311, an opening of the moving channel 311 is located on the bottom surface of the bearing seat 31, a shrinking opening is arranged at an opening of the moving channel 311, a magnetic attraction body 3111 is arranged at the bottom of the moving channel 311, the ejector rod 32 is located in the moving channel 311 and connected in a sliding manner, the ejector rod 32 is made of ferromagnetic material, the bearing seat 31 is further provided with a first cavity 312, the first cavity 312 is located on one side of the moving channel 311, a communication notch 313 is arranged between the moving channel 311 and the first cavity 312, the pushing component is located in the first cavity 312, the connecting component 33 is located on the ejector rod 32, the connecting component 33 can extend into or withdraw from the first cavity 312, the ejector rod 32 is provided with a containing hole, the bearing seat 31 is provided with an installation cavity 314, and the installation cavity is located on one side of the ejector rod 32 away from the first cavity 312.

The ejection rod 32 comprises a sliding portion 321 and an ejection portion 322, the diameter of the sliding portion 321 is the same as that of the moving channel 311, the ejection portion 322 is connected to the lower surface of the sliding portion 321, the diameter of the ejection portion 322 is smaller than that of the sliding portion 321, the elastic sleeve 35 is sleeved on the ejection portion 322, and the elastic sleeve 35 is a spring.

The connecting piece 33 includes the slip post 331 and positive negative pole electromagnetic plate 332, and the slip post 331 is located the holding hole 314 and sliding connection, and positive negative pole electromagnetic plate 332 is located the installation cavity, and the slip post 331 sets firmly magnetite 3311 towards the one side of positive negative pole electromagnetic plate 332. The pushing component is a pushing cylinder 34, the output end of the pushing cylinder 34 is connected with a top plate 341, and the horizontal plane projection of the lower surface of the top plate 341 covers the horizontal plane projection of the first chamber 312.

The invention also provides a particle detection process of the LED bracket after injection molding, which comprises the following steps:

s1, detecting a defect die holder 41 on the LED support belt 4 after the LED support belt 4 passes through the detection assembly 2;

s2, the detection component 2 sends the detection signal to a control system, and the control system sends an execution signal to the rejection component 3;

s3, the LED support belt 4 moves to the position below the rejecting assembly 3, and the rejecting assembly 3 rejects the defective die holder 41 through a second rejecting component corresponding to the defective die holder 41.

The specific working steps of the step S1 are as follows: the poking block 13 on the first conveying belt 11 pokes the poking notch 42 on the LED support belt 4 to move towards the stamping platform 14, and firstly through the first gluing roller 36, the first gluing roller 36 glues the weak die holder or enables the weak die holder to move, and then through the lower side of the detection assembly 2 on the first conveying belt 11, the die holder 41 on the LED support belt 4 of the detection assembly 2 detects.

The specific working steps of the step S2 are as follows: the detection component 2 sends the detection signal to the control system, and the control system sends an execution signal to the rejecting component 3.

The specific working steps of the step S3 are as follows: after the second eliminating component receives a signal of the control system, the positive and negative electromagnetic plates 332 enable the positive and negative electromagnetic plates 332 to become positive poles by changing the current flow direction, the magnets 3311 of the sliding columns 331 are also positive poles, under the action of like-pole repulsion, the sliding columns 331 are partially ejected out of the first cavity 312, the cylinder 34 is pushed to push the sliding columns 331 extending into the first cavity 312 to move downwards, so that the ejection rods 32 are driven to move downwards, elimination of a plurality of defect mold bases 41 is achieved at the same time, when the cylinder 34 is pushed to retract, the ejection rods 32 are reset under the action of the elastic sleeves 35 until the ejection rods 32 are adsorbed by the magnetic attraction 3111 to achieve accurate reset, then the positive and negative electromagnetic plates 332 enable the positive and negative electromagnetic plates 332 to become negative poles by changing the current flow direction, and the sliding columns 331 retract into the accommodating holes 314 to wait for next assignment.

Examples

As shown in fig. 1-3 and fig. 7-9, the difference between the present embodiment and embodiment 1 is that the structure of the pushing component is different, and the remaining structures are the same, in the present embodiment, the load bearing base 31 is provided with a moving channel 311, an opening of the moving channel 311 is located on the bottom surface of the load bearing base 31, the ejector rod 32 is located in the moving channel 311 and slidably connected, the load bearing base 31 is further provided with a first cavity 312, the first cavity 312 is located at one side of the moving channel 311, a communication gap 313 is provided between the moving channel 311 and the first cavity 312, the pushing component is located in the first cavity 312, the connecting component 33 is located on the ejector rod 32, and the connecting component 33 can extend into or withdraw from the first cavity 312. Specifically, the ejector rod 32 is provided with a containing hole 314, the bearing seat 31 has a mounting chamber, the mounting chamber is located on one side of the ejector rod 32 away from the first chamber 312, the connecting member 33 includes a moving column 333, a magnetic block 334 and a driving cylinder 335, the moving column 333 is located in the containing hole 314 and is connected in a sliding manner, the length of the moving column 333 is equal to or less than the depth of the containing hole 314, the driving cylinder 335 and the magnetic block 334 are located in the mounting chamber, one end of the magnetic block 334 is attracted to the output end of the driving cylinder 335, the other end of the magnetic block 334 is attracted to the end face of the moving column 333, and chamfers are formed at the edges of the two end faces of the magnetic block.

The particle detection process after the injection molding of the LED bracket provided by the embodiment comprises the following specific steps:

the specific working steps of the step S1 are as follows: poking notch 42 on the LED support belt 4 is poked by poking block 13 on the first conveying belt 11 to move towards stamping platform 14, and first through first gluing roller 36, first gluing roller 36 glues the weak die holder or makes the weak die holder to move, and below the detection component 2 on the first conveying belt 11, die holder 41 on the LED support belt 4 of the detection component 2 detects.

The specific working steps of the step S2 are as follows: the detection component 2 sends the detection signal to the control system, and the control system sends an execution signal to the rejecting component 3.

The specific working steps of the step S3 are as follows: after the second eliminating component receives a signal of the control system, the output end of the driving cylinder 335 is ejected, the magnetic block 334 is completely ejected into the accommodating hole 314, but the driving cylinder 335 does not extend into the accommodating hole 314, the moving rod is ejected into the first chamber 312 due to the movement of the magnetic block 334, the driving cylinder 34 moves downwards to push the moving rod, the magnetic block 334 is connected with the output end of the driving cylinder 335 through magnetic force, when the magnetic block 334 and the output end of the driving cylinder 335 are subjected to downward pushing force, the magnetic block 334 is separated from the output end of the driving cylinder 335, the ejecting rod 32 is ejected downwards to push the driving cylinder 34 to reset, the ejecting rod 32 resets under the action of the elastic sleeve 35 until the ejecting rod 32 is adsorbed by the magnetic attraction body 3111 to realize accurate reset, the magnetic block 334 is adsorbed with the output end of the driving cylinder 335 again, and the driving cylinder 335 retracts to drive the magnetic block 334 and the moving column 333 to retract.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a granule check out test set after LED support injection moulding which characterized in that: including the determine module and rejecting the subassembly, the determine module is located rejects subassembly input one side, it rejects the part and promotes the part including first rejection part, a plurality of second to reject the subassembly, first rejection part includes first sticky roller, surface contact on first sticky roller surface and the LED support, the part is rejected including bearing pedestal, knock-out rod and connecting piece, each including being connected between knock-out rod and the promotion part is through connecting piece control, the promotion part is through promoting connecting piece and knock-out rod downstream.

2. The particle detection device for the injection molded LED bracket as recited in claim 1, wherein: the first removing component further comprises a scraping plate and a collecting groove, the first gluing roller comprises a first roller and a cotton rubber sleeve, the cotton rubber sleeve is sleeved on the outer surface of the first roller, the scraping plate is fixedly connected to the collecting groove, and one end of the scraping plate abuts against the surface of the cotton rubber sleeve.

3. The particle detection device for the injection molded LED bracket according to claim 1, wherein the particle detection device comprises: the bearing seat body is provided with a moving channel, the opening of the moving channel is positioned on the bottom surface of the bearing seat body, the ejector rod is positioned in the moving channel and is in sliding connection with the moving channel, the bearing seat body is further provided with a first cavity, the first cavity is positioned on one side of the moving channel, a communication gap is arranged between the moving channel and the first cavity, the pushing component is positioned in the first cavity, the connecting component is positioned on the ejector rod, and the connecting component can stretch into or withdraw from the first cavity.

4. The particle detection device for the injection molded LED bracket according to claim 3, wherein the particle detection device comprises: the ejector rod is provided with a containing hole, the bearing seat body is provided with an installation cavity, the installation cavity is located on one side, away from the first cavity, of the ejector rod, the connecting piece comprises a sliding column and positive and negative electromagnetic plates, the sliding column is located in the containing hole and connected in a sliding mode, the positive and negative electromagnetic plates are located in the installation cavity, and a magnet is fixedly arranged on one surface, facing the positive and negative electromagnetic plates, of the sliding column.

5. The particle detection device of claim 3, wherein the particle detection device comprises: the ejector rod is provided with a containing hole, the bearing base body is provided with an installing cavity, the installing cavity is located on one side, away from the first cavity, of the ejector rod, the connecting piece comprises a moving column, a magnetic block and a driving cylinder body, the moving column is located in the containing hole and is in sliding connection, the length of the moving column is equal to or smaller than the depth of the containing hole, the driving cylinder body and the magnetic block are located in the installing cavity, one end of the magnetic block is attracted to the output end of the driving cylinder body, and the other end of the magnetic block is attracted to the end face of the moving column.

6. The particle detection device for the injection molded LED bracket as recited in claim 5, wherein: chamfers are formed at the edges of the two end faces of the magnetic block.

7. The particle detection device for the injection molded LED bracket as claimed in claim 3 or 4, wherein the particle detection device comprises: the pushing component is a pushing cylinder body, the output end of the pushing cylinder body is connected with a top propping plate, and the horizontal plane projection of the lower surface of the top propping plate covers the horizontal plane projection of the first cavity.

8. The particle detection device for the injection molded LED bracket as claimed in claim 3 or 4, wherein: the second eliminating component further comprises an elastic sleeve, a necking is arranged at the opening of the moving channel, the ejection rod comprises a sliding portion and an ejection portion, the diameter of the sliding portion is the same as that of the moving channel, the ejection portion is connected to the lower surface of the sliding portion, the diameter of the ejection portion is smaller than that of the sliding portion, and the elastic sleeve is sleeved on the ejection portion.

9. The particle detection device for the injection molded LED bracket as recited in claim 1, wherein: the particle detection equipment further comprises a moving assembly, the moving assembly comprises two first conveying belts, two second conveying belts and a stamping platform, the stamping platform is located between the first conveying belts and the second conveying belts, the two first conveying belts are arranged at intervals, the two second conveying belts are arranged at intervals, a plurality of poking blocks are formed on the surfaces of the first conveying belts and the second conveying belts, and the poking blocks are used for poking the LED support belts.

10. A particle detection process after injection molding of an LED bracket is characterized in that: the method comprises the following steps:

s1, detecting a defect die holder on an LED support belt by the LED support belt through a detection assembly;

s2, the detection assembly sends the detection signal to a control system, and the control system sends an execution signal to the rejection assembly;

and S3, the LED support belt moves to the position below the rejecting assembly, and the rejecting assembly rejects the defective die holder through a second rejecting component corresponding to the defective die holder.

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