CN112570271B

CN112570271B - Electronic component quality detection screening device

Info

Publication number: CN112570271B
Application number: CN202011384328.XA
Authority: CN
Inventors: 杨旭方; 李慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2022-05-17
Anticipated expiration: 2040-12-01
Also published as: CN112570271A

Abstract

The invention relates to a screening device for detecting the quality of electronic components, which comprises a screening box and a feeding hopper, wherein the feeding hopper is movably inserted on a top plate of the screening box, and a first supporting spring is wound and connected outside the feeding hopper; according to the invention, the electronic elements are screened by the vibration effect, and the plurality of groups of screening nets are arranged, so that the screening of the electronic elements with different diameters can be realized, the screening of the electronic elements is more accurate, the screening speed of the electronic elements can be increased by the vibration screening mode, and the working efficiency is improved.

Description

Electronic component quality detection screening device

Technical Field

The invention relates to the technical field of electronic elements, in particular to a screening device for detecting the quality of electronic elements.

Background

Electronic components, which are basic elements of electronic circuits, are usually packaged individually and have two or more leads or metal contacts, are interconnected to form an electronic circuit with a specific function, such as amplifiers, radio receivers, oscillators, etc., one of the common ways of connecting electronic components is soldering to a printed circuit board, which may be a separate package, or various groups with different complexity, when the electronic components are finished, the electronic components with different specifications and different qualities are often mixed together, so that the electronic components need to be detected and screened, however, the prior screening device has low efficiency in screening, long screening time, complex operation and waste of working time, and the existing screening device also has the risk that electronic components of the feed hopper and the discharge hopper are blocked.

In order to solve the problems, the invention provides an electronic component quality detection screening device.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the defects of the prior art, adapt to practical requirements and provide the electronic component quality detection screening device so as to solve the technical problems.

(2) Technical scheme

In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:

the electronic component quality detection screening device comprises a screening box and a feeding hopper, wherein the feeding hopper is movably inserted on a top plate of the screening box, a first supporting spring is wound and connected outside the feeding hopper, two ends of the first supporting spring are respectively and fixedly connected on the outer side wall of the feeding hopper and the outer top wall of the screening box, a discharging hopper is movably inserted and connected on a bottom plate of the screening box, one end of a plurality of second supporting springs is fixedly connected on the outer side wall of the discharging hopper, the other end of the second supporting springs is fixedly connected on the inner bottom wall of the screening box, a first rotating rod is movably inserted and connected on the side wall of the screening box, one end of the first rotating rod is connected with a driving motor, a fixing ring is fixedly sleeved outside the driving motor and fixedly arranged on the outer side wall of the screening box through a first L-shaped supporting rod, and a first rotating rod abutting plate is fixedly connected at the other end of the first rotating rod, and the left view of conflict board is oval structure, the upper end conflict of conflict board is provided with screening mechanism.

Further, screening mechanism is including supporting the feeler lever and screening net, screening net fixed cover is established outside supporting the feeler lever, and screening net is provided with the multiunit, the multiunit screening net has all been seted up a plurality of and has been revealed the hole on the net, set up on the lateral wall of screening case with screening net assorted material taking hole, and material taking downthehole slope stock guide that is provided with, the equal fixedly connected with supporting slide in both ends of screening net, and supporting slide slides and set up in supporting the spout, supporting the spout and seting up on the inside wall of screening case, be connected with a direction subassembly on supporting slide's the lower extreme, and a direction subassembly's lower extreme fixed connection is on supporting the diapire of spout.

Further, the quantity of screening net is provided with three at least, and the hole size of revealing of seting up on a plurality of screening net is inconsistent, and from last down reducing in proper order.

Furthermore, a direction subassembly includes guide bar, a guide cylinder and a guide spring, a guide bar activity is pegged graft in a guide cylinder, a guide spring winding is connected outside a guide bar, and a guide spring's both ends respectively fixed connection on the lateral wall of a guide bar and on the lateral wall of a guide cylinder.

Further, the screening box is externally provided with a knocking mechanism, the knocking mechanism comprises a first belt pulley, a transmission belt and a second belt pulley, the first belt pulley is fixedly sleeved outside a first rotating rod, the first belt pulley and the second belt pulley are connected through transmission of the transmission belt, the second belt pulley is fixedly sleeved outside a second rotating rod, the second rotating rod is movably inserted into a first supporting plate, the first supporting plate is fixedly arranged on the outer top wall of the screening box, the second rotating rod is fixedly sleeved with a missing gear, the missing gear is alternately meshed with two groups of parallel straight racks, the two groups of straight racks are symmetrically and fixedly arranged on the inner side wall of the supporting ring, the lower end of the supporting ring is fixedly connected with a second guide assembly, the second guide assembly is fixedly arranged on the outer top wall of the screening box, one end, away from the second belt pulley, of the supporting ring is connected with a second L-shaped supporting rod, and the free end of the second L-shaped supporting rod is fixedly connected to the outer side wall of the feeding hopper.

Further, No. two direction subassemblies include guide bar No. two, No. two guide cylinders and No. two guide spring, No. two guide bar activities are pegged graft in No. two guide cylinders, No. two guide spring winding are connected outside No. two guide bars, and No. two guide spring's both ends respectively fixed connection on the lateral wall of No. two guide bars and on the lateral wall of No. two guide cylinders.

Furthermore, fixed cover is equipped with two stoppers on No. two dwang, and two stoppers set up the both sides in a backup pad respectively, one side that backup pad and stopper are close to each other slides and sets up.

Further, be connected with No. two touch panel on the lateral wall of No. two dwangs, the matching is provided with the catch bar under No. two touch panels, and the catch bar activity is pegged graft in No. two backup pads, No. two the backup pads are fixed to be set up on the outer roof of screening case, and the winding is connected with No. three supporting spring on the catch bar, No. three supporting spring's both ends respectively fixed connection on the lateral wall of catch bar and the lateral wall of No. two backup pads, the one end that the catch bar is close to into the hopper is connected with strikes the ball.

Furthermore, one end of the push rod, which is far away from the feeding hopper, is arranged to be of a round head structure.

Furthermore, the rubber sleeve is coated outside the knocking ball.

(3) Has the advantages that:

A. according to the invention, the electronic elements are screened by the vibration effect, and the plurality of groups of screening nets are arranged, so that the screening of the electronic elements with different diameters can be realized, the screening of the electronic elements is more accurate, the screening speed of the electronic elements can be increased by the vibration screening mode, and the working efficiency is improved.

B. In order to realize more detailed screening of electronic elements, when the screening mechanism is arranged, the screening mechanism is provided with the multiple layers of screening nets, each layer of screening net is provided with the leakage holes, and the leakage holes are sequentially reduced from top to bottom, so that the electronic elements with different sizes can be screened.

C. In the actual use process, the sizes of the electronic elements passing through the feeding hopper are different, and the size of the electronic element coming out of the discharging hopper is the smallest, so that the electronic element in the discharging hopper is more easily blocked.

D. When the driving source is arranged, the movement of the screening mechanism and the movement of the knocking mechanism can be driven by the working of the driving motor, so that in the actual working process, a power source does not need to be independently arranged, the effects of energy conservation and consumption reduction are achieved, in addition, the arrangement of a single driving motor can simultaneously drive the screening mechanism and the knocking mechanism to move, the consistency of the equipment in use is ensured, and further, the multi-step synchronous operation of the equipment in the working process is ensured, so the effect of high-efficiency working can be achieved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of an electronic component quality inspection screening device according to the present invention;

FIG. 2 is an enlarged schematic view of the three-dimensional structure of the touch plate of the electronic component quality inspection and screening apparatus of the present invention shown in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure A in FIG. 1 of the electronic component quality inspection screening device of the present invention;

FIG. 4 is an enlarged schematic view of the structure B in FIG. 1 of the electronic component quality inspection screening device of the present invention;

fig. 5 is an enlarged schematic view of a cross section C-C in fig. 4 of the electronic component quality testing screening device of the present invention.

The reference numbers are as follows:

the screening box 1, the feeding hopper 2, the first supporting spring 3, the discharging hopper 4, the second supporting spring 5, the driving motor 6, the fixing ring 7, the first L-shaped supporting rod 8, the first rotating rod 9, the first abutting plate 10, the screening mechanism 11, the abutting rod 111, the screening net 112, the leakage hole 113, the material taking hole 114, the inclined material guide plate 115, the supporting slider 116, the supporting chute 117, the first guiding component 118, the first guiding rod 1181, the first guiding cylinder 1182, the first guiding spring 1183, the knocking mechanism 12, the first belt pulley 121, the conveying belt 122, the second belt pulley 123, the second rotating rod 124, the first supporting plate 125, the limiting block 126, the missing gear 127, the straight rack 128, the supporting ring 129, the second L-shaped supporting rod 1210, the second guiding component 1211, the second abutting plate 1212, the pushing rod 1213, the second supporting plate 1214, the third supporting spring 1215 and the knocking ball 1216.

Detailed Description

The invention will be further illustrated with reference to the following figures 1 to 5 and examples:

the electronic component quality detection screening device comprises a screening box 1 and a feeding hopper 2, wherein the feeding hopper 2 is movably inserted on a top plate of the screening box 1, the feeding hopper 2 is externally wound and connected with a first supporting spring 3, two ends of the first supporting spring 3 are respectively and fixedly connected on the outer side wall of the feeding hopper 2 and the outer top wall of the screening box 1, a discharging hopper 4 is movably inserted on a bottom plate of the screening box 1, one end of a plurality of second supporting springs 5 is fixedly connected on the outer side wall of the discharging hopper 4, the other end of the second supporting springs 5 is fixedly connected on the inner bottom wall of the screening box 1, a first rotating rod 9 is movably inserted on the side wall of the screening box 1, one end of the first rotating rod 9 is connected with a driving motor 6, a fixing ring 7 is fixedly sleeved outside the driving motor 6, and the fixing ring 7 is fixedly arranged on the outer side wall of the screening box 1 through a first L-shaped supporting rod 8, the other end of the first rotating rod 9 is fixedly connected with a first collision plate 10, the left view of the first collision plate 10 is in an oval structure, the upper end of the first collision plate 10 is in collision with a screening mechanism 11, the electronic component is screened by the vibrating action, and a plurality of groups of screening nets are arranged, so that the screening of the electronic components with different diameters can be realized, the screening of the electronic component is more accurate, the screening speed of the electronic component can be increased by the vibrating screening mode, so that the working efficiency is improved, when the device is arranged, the feeding hopper 2, the discharging hopper 4 and the screening box 1 are movably arranged, so that the feeding hopper 2 and the discharging hopper 4 can move in the vibrating process, and the movement of the feeding hopper 2 and the discharging hopper 4 can effectively play a role of anti-blocking in the actual working process, so that the device is more convenient and efficient to use, therefore, the method has higher market prospect; when the driving source is arranged, the screening mechanism 11 and the knocking mechanism 12 can be driven by the operation of the driving motor 6, so that in the actual working process, a power source does not need to be arranged independently, the effects of energy conservation and consumption reduction are achieved, in addition, the arrangement of the single driving motor 6 can drive the screening mechanism 11 and the knocking mechanism 12 to move simultaneously, the consistency of the equipment in use is ensured, and further, the equipment can realize multi-step synchronization in the working process, and therefore, the effect of high-efficiency working can be achieved.

In the embodiment, the screening mechanism 11 comprises a contact rod 111 and a screening net 112, the screening net 112 is fixedly sleeved outside the contact rod 111, the screening net 112 is provided with a plurality of groups, the groups of screening nets 112 are respectively provided with a plurality of leakage holes 113, the side wall of the screening box 1 is provided with a material taking hole 114 matched with the screening net 112, the material taking hole 114 is internally provided with an inclined material guide plate 115, both ends of the screening net 112 are fixedly connected with supporting sliding blocks 116, the supporting sliding blocks 116 are slidably arranged in the supporting sliding grooves 117, the supporting sliding grooves 117 are arranged on the inner side wall of the screening box 1, the lower ends of the supporting sliding blocks 116 are connected with a first guiding component 118, and the lower ends of the first guiding components 118 are fixedly connected to the bottom wall of the supporting sliding grooves 117, in order to realize finer screening of electronic components, when the screening mechanism 11 is arranged, a plurality of layers of screening nets 112 are arranged, and each layer of screening nets 112 is provided with the leakage holes 113, and the exposure holes 113 are sequentially reduced from top to bottom, so that the screening of electronic elements with different sizes can be realized, and the precise screening of the electronic elements with different sizes can be realized through the arrangement of the multilayer screening net 112, so that in the actual use process, the subsequent selection is not needed, and the effects of high efficiency work, trouble saving and labor saving are achieved.

In this embodiment, the number of screening net 112 is provided with three at least, and the hole 113 that leaks that sets up on a plurality of screening net 112 is inconsistent in size, and from last down reduces in proper order, through increasing the quantity of screening net 112 to when screening electronic component, can sieve more accurately.

In this embodiment, the first guide assembly 118 includes a first guide rod 1181, a first guide cylinder 1182 and a first guide spring 1183, the first guide rod 1181 is movably inserted into the first guide cylinder 1182, the first guide spring 1183 is wound around and connected to the outside of the first guide rod 1181, and both ends of the first guide spring 1183 are respectively and fixedly connected to the side wall of the first guide rod 1181 and the outer side wall of the first guide cylinder 1182, the second guide assembly 1211 comprises a second guide rod, a second guide cylinder and a second guide spring, the second guide rod is movably inserted into the second guide cylinder, the second guide spring is wound and connected outside the second guide rod, and the both ends of No. two direction springs are fixed connection respectively on the lateral wall of No. two guide bars and on the lateral wall of No. two guide cylinder, and the setting of No. one direction subassembly 118 and No. two direction subassembly 1211 all can play the effect of direction and provide the effect of power for the restoring force.

In this embodiment, a knocking mechanism 12 is disposed outside the sieving box 1, the knocking mechanism 12 includes a first belt pulley 121, a transmission belt 122 and a second belt pulley 123, the first belt pulley 121 is fixedly sleeved outside the first rotating rod 9, the first belt pulley 121 and the second belt pulley 123 are in transmission connection through the transmission belt 122, the second belt pulley 123 is fixedly sleeved outside the second rotating rod 124, the second rotating rod 124 is movably inserted in the first supporting plate 125, the first supporting plate 125 is fixedly disposed on an outer top wall of the sieving box 1, the second rotating rod 124 is fixedly sleeved with a missing gear 127, the missing gear 127 is alternately engaged with two sets of parallel spur racks 128, the two sets of spur racks 128 are symmetrically and fixedly disposed on an inner side wall of the supporting ring 129, a second guiding assembly 1211 is fixedly connected to a lower end of the supporting ring 129, the second guiding assembly 1211 is fixedly disposed on the outer top wall of the sieving box 1, one end of the supporting ring 129 away from the second belt pulley 123 is connected with a second L-shaped supporting rod 1210, the free end of the second L-shaped support rod 1210 is fixedly connected to the outer side wall of the feeding hopper 2, the side wall of the second rotating rod 124 is connected with a second abutting plate 1212, a push rod 1213 is arranged under the second abutting plate 1212 in a matching manner, the push rod 1213 is movably inserted into a second support plate 1214, the second support plate 1214 is fixedly arranged on the outer top wall of the screening box 1, a third support spring 1215 is wound on the push rod 1213, two ends of the third support spring 1215 are respectively fixedly connected to the side wall of the push rod 1213 and the side wall of the second support plate 1214, one end of the push rod 1213 close to the feeding hopper 2 is connected with a knocking ball 1216, during the actual use process, the sizes of the electronic components passing through the feeding hopper 2 are different, the size of the electronic component coming out of the discharging hopper 4 is the smallest, so that the electronic component in the discharging hopper 4 is more easily blocked, in order to ensure that different electronic components more easily pass through the discharging hopper 4, according to the invention, the knocking mechanism 12 is arranged, and the knocking mechanism 12 can knock and vibrate the feeding hopper 2, so that the movement frequency of the feeding hopper 2 is increased, and the anti-blocking effect is further realized.

In this embodiment, fixed cover is equipped with two stopper 126 on No. two dwang 124, and two stopper 126 set up the both sides at a backup pad 125 respectively, one side that backup pad 125 and stopper 126 are close to each other slides and sets up, stopper 126's setting for play spacing effect, the setting of two stopper 126 can play limiting displacement to the position of No. two dwang 124, avoid No. two dwang 124 at the in-process of motion, take place to remove, thereby can guarantee that the rotational position who lacks gear 127 can not change.

In this embodiment, the one end that catch bar 1213 kept away from into hopper 2 sets up to the button head structure, and catch bar 1213 sets up to the button head structure, plays the effect of anti-sticking, and when No. two conflict boards 1212 pushed away catch bar 1213 motion, the setting of button head structure can guarantee that this motion process can go on smoothly.

In this embodiment, it has the rubber sleeve to beat ball 1216 outer cladding, the setting of rubber sleeve, the effect of protection can be played on the one hand, specifically, when beating ball 1216 and striking into hopper 2, in order to prevent that equipment from taking place to damage under long-time operating condition, the setting of rubber sleeve, the effect of the striking power of buffering can be effectively played, thereby play the effect of protection to equipment, on the other hand, can play the effect of making an uproar falls in reaching, specifically, go into hopper 2 and beat the instant that ball 1216 takes place the striking power, sound can take place, this sound is more harsh, in order to weaken the existence of this sound, the rubber sleeve has been set up.

The working principle of the invention is as follows:

starting the driving motor 6, the first rotating rod 9 is driven to rotate by the driving motor 6, on one hand, the first abutting plate 10 is driven to rotate by the rotation of the first rotating rod 9, and the first abutting plate 10 rotates to impact the abutting rod 111 in a circulating manner (because the first abutting plate 10 is oval, the upward pushing of the first abutting plate 10 on the abutting rod 111 is cyclic, and when the abutting rod 111 loses the interference of the first abutting plate 10, the abutting rod 111 is driven to move downwards under the action of the first guiding assembly 118, so that the abutting rod 111 is driven to move in a circulating manner), and the circulating movement of the abutting rod 111 drives the sieving net 112 to move in a circulating manner; on the other hand, the second rotating rod 124 is driven to rotate by the combination of the first belt pulley 121, the conveying belt 122 and the second belt pulley 123, the second rotating rod 124 drives the third gear 127 to rotate, because the third gear 127 is meshed with the two sets of spur racks 128 alternately, the support ring 129 moves up and down by the two spur racks 128 along with the rotation of the third gear 127, the support ring 129 moves up and down and drives the hopper 2 to move up and down by the second L-shaped support rod 1210, so as to increase the movement frequency of the hopper 2, and in the process of rotating the second rotating rod 124, the second collision plate 1212 rotates, the rotation of the second collision plate 1212 realizes collision against the push rod 1213, the movement of the push rod 1213 pushes the knocking ball 1216 to collide with the outer side wall of the hopper 2, when the second collision plate 1212 is separated from the push rod 1213, under the action of the third support spring 1215, the knocking ball 1216 can be separated from the feeding hopper 2, and the pushing rod 1213 can perform a resetting motion, so that the pushing rod 1213 can drive the knocking ball 1216 to continuously impact the feeding hopper 2 along with the continuous rotation of the second interference plate 1212, and the problem that an electronic component is blocked at the feeding hopper 2 can be prevented;

electronic components are poured into the screening box 1 from the discharge hopper 4, and at the discharge hopper 4, the discharge hopper 4 is driven by the driving motor 6 to move in the vertical direction and be continuously knocked, so that the vibration frequency of the discharge hopper can be accelerated, and the electronic components can be prevented from being blocked at the discharge hopper 4; after the electronic components enter the screening box 1, the electronic components contact the uppermost screening net 112 in advance, because the center of the screening net 112 is set to be convex, the electronic components can move to the edge of the screening net 112 after falling, in the moving process, the electronic components with the size smaller than the leakage holes 113 can be leaked from the leakage holes 113 to the screening net 112 of the next layer, in the screening process, because the screening net 112 can generate relative vibration, the screening speed of the electronic components can be accelerated in the screening process, and under the action of the vibration, the electronic components with different sizes passing through the leakage holes 113 can be vibrated to move from the material taking holes 114 to the outside of the screening box 1, and along with the inclined material guide plate 115 entering the storage box, the process can be carried out, and the problem that the electronic components with different sizes need to be collected manually after the screening is completed can be avoided, thereby achieving the effect of saving time and labor and further effectively improving the working efficiency; along with different screening nets 112 screening electronic component, make the electronic component size that falls onto hopper 4 minimum, and under mechanical vibrations and No. two supporting spring 5's synergism, make hopper 4 also take place the vibrations effect, thereby make the electronic component that falls onto hopper 4 get into in the storage box through the lower discharge gate that goes out hopper 4, thereby realize electronic component's collection, the setting of this screening structure, both can play the efficient screening of electronic component to different sizes, and simultaneously, can be to the electronic component after the screening again, separate the collection according to different sizes, consequently, this screening plant's use, can be so that electronic component's screening in-process, convenient high efficiency more.

The invention has the beneficial effects that:

according to the invention, electronic components are screened by a vibration effect, and a plurality of groups of screening nets are arranged, so that the screening of the electronic components with different diameters can be realized, the screening of the electronic components is more accurate, the screening speed of the electronic components can be increased by the vibration screening method, and the working efficiency is improved.

In order to realize more detailed screening of electronic elements, when the screening mechanism is arranged, the screening mechanism 11 is provided with the multiple layers of screening nets 112, each layer of screening net 112 is provided with the leakage holes 113, and the leakage holes 113 are sequentially reduced from top to bottom, so that the electronic elements with different sizes can be screened, and the electronic elements with different sizes can be accurately screened by the arrangement of the multiple layers of screening nets 112, so that the electronic elements with different sizes can be accurately screened without subsequent selection in the actual use process, and the effects of high efficiency work and labor saving are achieved.

In the actual use process, the sizes of the electronic components passing through the feeding hopper 2 are different, and the size of the electronic components coming out of the discharging hopper 4 is the smallest, so that the electronic components in the discharging hopper 4 are more easily blocked, and in order to ensure that different electronic components more easily pass through the discharging hopper 4, the knocking mechanism 12 is arranged, and the knocking mechanism 12 can knock and vibrate the feeding hopper 2, so that the motion frequency of the feeding hopper 2 is increased, and the anti-blocking effect is achieved.

When the driving source is arranged, the screening mechanism 11 and the knocking mechanism 12 can be driven by the operation of the driving motor 6, so that in the actual working process, a power source does not need to be arranged independently, the effects of energy conservation and consumption reduction are achieved, in addition, the arrangement of the single driving motor 6 can drive the screening mechanism 11 and the knocking mechanism 12 to move simultaneously, the consistency of the equipment in use is ensured, and further, the equipment can realize multi-step synchronization in the working process, and therefore, the effect of high-efficiency working can be achieved.

The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.

Claims

1. The electronic component quality detection screening device comprises a screening box (1) and a feeding hopper (2), wherein the feeding hopper (2) is movably inserted on a top plate of the screening box (1), and is characterized in that the feeding hopper (2) is wound and connected with a first supporting spring (3), two ends of the first supporting spring (3) are fixedly connected on the outer side wall of the feeding hopper (2) and the outer top wall of the screening box (1) respectively, a discharging hopper (4) is movably inserted on a bottom plate of the screening box (1), one ends of a plurality of second supporting springs (5) are fixedly connected on the outer side wall of the discharging hopper (4), the other ends of the second supporting springs (5) are fixedly connected on the inner bottom wall of the screening box (1), a first rotating rod (9) is movably inserted on the side wall of the screening box (1), and one end of the first rotating rod (9) is connected with a driving motor (6), the driving motor (6) is fixedly sleeved with a fixing ring (7), the fixing ring (7) is fixedly arranged on the outer side wall of the screening box (1) through a first L-shaped supporting rod (8), the other end of the first rotating rod (9) is fixedly connected with a first abutting plate (10), the left view of the first abutting plate (10) is of an oval structure, and the upper end of the first abutting plate (10) is abutted with a screening mechanism (11);

the screening mechanism (11) comprises a contact rod (111) and a screening net (112), the screening net (112) is fixedly sleeved outside the contact rod (111), and the screening net (112) is provided with a plurality of groups, a plurality of leakage holes (113) are arranged on the screening net (112), the side wall of the screening box (1) is provided with a material taking hole (114) matched with the screening net (112), an inclined material guide plate (115) is arranged in the material taking hole (114), two ends of the screening net (112) are fixedly connected with supporting slide blocks (116), and the supporting slide block (116) is arranged in the supporting slide groove (117) in a sliding way, the supporting slide groove (117) is arranged on the inner side wall of the screening box (1), the lower end of the supporting slide block (116) is connected with a first guide component (118), the lower end of the first guide assembly (118) is fixedly connected to the bottom wall of the support sliding groove (117);

screening case (1) is provided with outward and strikes mechanism (12), strike mechanism (12) including a belt pulley (121), conveyer (122) and No. two belt pulleys (123), a fixed cover of belt pulley (121) is established outside dwang (9), a belt pulley (121) and No. two belt pulleys (123) pass through conveyer (122) transmission and are connected, No. two belt pulley (123) fixed cover are established outside No. two dwang (124), and No. two dwang (124) activity pegs graft on a backup pad (125), a backup pad (125) is fixed to be set up on the outer roof of screening case (1), No. two dwang (124) outer fixed cover is equipped with scarce gear (127), and lacks gear (127) and two sets of parallel spur rack (128) mesh in turn, and is two sets of spur rack (128) symmetry is fixed to be set up on the inside wall of support ring (129), the lower end of the support ring (129) is fixedly connected with a second guide assembly (1211), the second guide assembly (1211) is fixedly arranged on the outer top wall of the screening box (1), one end, far away from the second belt pulley (123), of the support ring (129) is connected with a second L-shaped support rod (1210), the free end of the second L-shaped support rod (1210) is fixedly connected onto the outer side wall of the feeding hopper (2), the side wall of the second rotating rod (124) is connected with a second abutting plate (1212), a push rod (1213) is arranged right below the second abutting plate (1212) in a matching mode, the push rod (1213) is movably inserted into the second support plate (1214), the second support plate (1214) is fixedly arranged on the outer top wall of the screening box (1), a third support spring (1215) is wound on the push rod (1213), and two ends of the third support spring (1215) are respectively and fixedly connected onto the side wall of the push rod (1213) and the side wall of the second support plate (1214), one end of the push rod (1213) close to the feeding hopper (2) is connected with a knocking ball (1216).

2. The electronic component quality inspection screening device of claim 1, wherein: the number of the screening nets (112) is at least three, and the sizes of the leakage holes (113) formed in the screening nets (112) are different, and the leakage holes are sequentially reduced from top to bottom.

3. The electronic component quality inspection screening device of claim 1, wherein: a direction subassembly (118) includes guide bar (1181), a guide cylinder (1182) and a guide spring (1183), a guide bar (1181) activity is pegged graft in a guide cylinder (1182), a guide spring (1183) winding is connected outside a guide bar (1181), and the both ends of a guide spring (1183) fixed connection respectively is on the lateral wall of a guide bar (1181) and the lateral wall of a guide cylinder (1182).