CN212831435U - Vacuum adsorption type automatic screw arraying, sorting and feeding machine - Google Patents

Abstract

The utility model discloses a vacuum adsorption type automatic screw arraying and sorting feeder, which comprises a turntable mechanism, a vacuum device and a roller mechanism, wherein the lower part of the turntable mechanism is connected to the vacuum device, the front end of the roller mechanism is connected with the rear end of the roller mechanism, and the vacuum device provides negative pressure for the turntable mechanism connected with the upper end of the roller mechanism, so that the screw conveyed to the turntable mechanism by the roller mechanism generates adsorption force; after the screw passes through the rotatory material loading of cylinder, directly drop to the charging tray behind the charging chute on, in sucking the screw into the material mouth on the charging tray by vacuum adsorption's mode, send the screw to the assigned position by the charging tray is rotatory again. The feeding machine saves the feeding by rail arrangement, thereby avoiding the problem of material blockage; a sensor below the material port detects the length of the screw thread to judge whether the screw is available; the whole machine has no vibration, and the discrimination accuracy of the sensor is ensured. The whole group is reduced, the assembly and the maintenance are easy, the noise is low, and the cost is low.

Description

Vacuum adsorption type automatic screw arraying, sorting and feeding machine

Technical Field

The utility model relates to an electronic component screening feed technique especially relates to an automatic screw permutation of vacuum adsorption type selects feeder machine.

Background

The electronic industry has higher requirements on the precision of the used screws, and when the positions of the shorter screws need to be locked, if the materials are mixed or the tolerance of the screws is larger in the feeding process of the screws, the locking positions are easily locked into the longer screws, so that the products are damaged. And the screw specification that the electron trade was used is less, when using traditional feeder to carry out the feed, easily causes the screw card material problem, influences normal production. The traditional table is shown in figure 1, wherein A-bottom plate; b-a vibration seat; c-turntable material distribution mechanism; a D-track; e-a trough chamber; f-display panel. The traditional machine table drives a roller to rotate and feed through the operation of a roller motor arranged on a bottom plate A, and screws fall to the rear end of a track D after rolling to a high point from a material chamber E; a driving motor is arranged on the vibration seat B to drive the eccentric wheel to vibrate, the track D is arranged at the upper end of the vibration seat B to vibrate along with the vibration seat, and screws at the rear end are arranged at the rear end of the track D and conveyed to the front end. The width of the track D is adjusted according to the diameter of the screw thread, and after the screw falls off, the screw thread part of the screw in the track groove is in a normal posture. When the screws move forwards on the track D, a brush is arranged at the upper end of the screws and driven by a roller motor to swing, so that the screws with abnormal postures on the track are swept. After the screws in the normal posture are arranged to the front end of the track D, a turntable distributing mechanism C is installed at the front end of the track to convey the screws to a specified position for taking. However, the following problems occur in the conventional systems:

1. because the swinging of the brush runs along with the running of the roller, the cleaning frequency of the brush is limited, so that the abnormal posture screws on the track D are possibly not completely cleaned, and when the screws with special specifications are met, the abnormal posture screws are clamped in the track and are difficult to clean by the brush. Track D can install a screw clamp plate at the regional front end of cleaning of brush and prevent that the screw from jumping out the track owing to the vibration extrusion, and it highly has screw cap thickness decision, so under the condition that the brush will not be swept away unusual gesture screw, unusual gesture screw can block in the clamp plate rear end, makes whole track arrange the material not in the same order, causes the card material. And the track D needs to keep the surface clean when conveying the screw, and when conveying the screw that contains greasy dirt, track D can be polluted very fast and consequently can't convey the screw.

2. When screws enter the turntable from the front end of the track, because the track conveys the screws through vibration, a gap is required to be reserved between the front end of the track and the turntable for the track to vibrate without impacting the turntable; thereby causing the screw material clamping condition to appear in the connection of the track and the turntable or the screw to drop to the inside of the machine table from the gap between the turntable and the track.

3. After the turnplate distributing mechanism C brings the screws to the designated positions, the sensors cannot be installed to judge the lengths of the screws; even under the condition of installing the inductor, because the board is carried the screw and is realized through the vibration, cause the resonance of whole board when vibrating to make great error appear when judging the length of screw, be difficult to carry out reliable work.

4. The traditional machine table has more structural members and is complex and complicated to assemble, and main working members are positioned inside the machine table and difficult to observe and maintain.

5. In the working process of the machine table, the vibration of the machine table can cause large noise, and the vibration feeding has certain requirements on the placement position and the working environment of the machine table.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an automatic screw permutation of vacuum adsorption type selects feeder machine, it can solve above-mentioned problem.

The purpose of the utility model is realized by adopting the following technical scheme:

a vacuum adsorption type automatic screw arraying and sorting feeder comprises a turntable mechanism, a vacuum device and a roller mechanism, wherein the lower part of the turntable mechanism is connected to the vacuum device, the front end of the roller mechanism is connected with the rear end of the roller mechanism, and the turntable mechanism, the vacuum device and the roller mechanism are arranged in a shell mechanism; the vacuum device provides negative pressure for the turntable mechanism connected with the upper end of the vacuum device, so that the screw conveyed to the turntable mechanism by the roller mechanism is adsorbed; the turntable mechanism is provided with a stepping feeding unit, a material port sensing unit, a screw measuring unit and a metering unit, the material port sensing unit temporarily stops the advancing of the stepping material unit when sensing that the material port has screws, and the screw measuring unit measures whether the screw parameters meet the requirements or not, and the metering unit counts and displays the screws meeting the requirements.

Preferably, the stepping feeding unit of the turntable mechanism comprises a material disc, a material disc base plate, a material disc rotating shaft, a material disc bearing, a material disc fixing plate, a shifting wheel upper bearing, a grooved wheel, a shifting wheel lower bearing, an F-shaped optical coupler limiting plate, a turntable motor fixing seat, a left U-shaped groove fixing plate, a right U-shaped groove fixing plate, a conical gear, a material disc driving motor, a motor fixing frame and a gas pipe joint; the charging tray bearing plate covers the charging tray bearing plate and is locked on the charging tray fixing plate, and a fixing plate negative pressure through hole which is communicated up and down is formed in a step hole on the outer side of the inner hole of the charging tray fixing plate; the material tray rotating shaft penetrates through the material tray bearing and the lower end of the material tray rotating shaft is connected with the grooved pulley, and the upper end of the material tray rotating shaft penetrates through an inner hole of the material tray; the upper end of the shifting wheel is embedded into the lower surface of the tray fixing plate through the bearing bush on the shifting wheel, and the lower end of the shifting wheel sequentially penetrates through the lower bearing bush of the shifting wheel, the turntable motor fixing seat and the F-shaped optical coupler limiting sheet and then is connected with a vertically arranged conical gear; the F-shaped optical coupler is arranged on the right side of the front end of the turntable motor fixing seat; the side plate of the motor fixing frame is fixed to the front end face of the turntable motor fixing seat, the tray driving motor is fixed to the motor fixing frame, another horizontally arranged conical gear is installed at the end of the motor shaft, and the two conical gears are meshed with each other; a left U-shaped groove fixing piece and a right U-shaped groove fixing piece are arranged on two sides of the turntable motor fixing seat; the air pipe joint is arranged at the rear end of the turntable motor fixing seat; the turntable motor fixing seat is internally provided with an air path, an upper end opening and a rear end opening, the upper end opening is communicated with a fixing plate negative pressure through hole of the charging tray fixing plate, and a waist-shaped notch is formed in the charging tray base plate, so that negative pressure suction force formed by the vacuum device directly acts on the notch on the charging tray base plate; the material tray is provided with a material port processed according to the diameter of the screw teeth, and the notch is communicated with the material port on the material tray to form suction to the screw falling on the material tray.

Preferably, the screw measuring unit of carousel mechanism includes the laser displacement sensor on fixed connection to the sensor mount, on the laser displacement sensor front end was connected to the rear end face of sensor mount, the sensor mount was fixed to charging tray fixed plate front end side, made the laser displacement sensor be located charging tray material loading mouth below.

Preferably, the material mouth sensing unit of carousel mechanism includes infrared mount, receives infrared opto-coupler and transmission infrared opto-coupler, receive infrared opto-coupler and transmission infrared opto-coupler set up in infrared mount both ends, infrared mount both sides are through connecting portion fixed connection to the sensor mount on the preceding terminal surface.

Preferably, the vacuum device comprises a roller mechanism fixing plate, an electromagnetic valve fixing seat, an air inlet joint, a vacuum generator and a negative pressure joint; the electromagnetic valve is arranged at the front end of the electromagnetic valve fixing seat, the vacuum generator and the air inlet connector are arranged at the rear end of the electromagnetic valve fixing seat, and the roller mechanism fixing plate is arranged on the upper side of the electromagnetic valve fixing seat; the negative pressure joint is connected with the vacuum generator body through a knob switch; the interface end of the negative pressure joint is connected with the air pipe joint of the turntable mechanism through an air pipe, so that negative pressure is provided for the turntable mechanism.

Preferably, the drum mechanism comprises a controller plate, a controller plate fixing plate, an external gear drum, a scooping piece, a bacon, a drum fixing plate, a charging chute fixing frame, a charging chute bracket, a U-shaped groove, a display panel, a drum driving motor and an M1 pinion; the control machine plate is connected to the rear end side of the control machine plate fixing plate, the external gear drum is arranged on the front end side of the control machine plate fixing plate, and scooping pieces are uniformly distributed on the peripheral wall of the inner barrel of the external gear drum; the front end of the fixed plate of the control machine plate is fixedly connected to the inner side surface of the rear end of the fixed plate of the roller after being sleeved with a bearing through a connecting rivet at the front end; the display board is connected to the lower side surface of the upper end plate of the roller fixing board; the rear end plate of the charging chute fixing frame is fixed to the upper part of the front end surface of the roller fixing plate, and a charging chute is arranged on the charging chute support and then connected to the charging chute fixing frame; the U-shaped groove is connected to the lower part of the front end face of the roller fixing plate; the roller driving motor is fixed to the lower part of the U-shaped groove, and the shaft end of the roller driving motor is meshed with the external gear roller through an M1 pinion installed on the roller driving motor so as to drive the external gear roller to rotate; the lower part of the obliquely arranged charging chute is opposite to the lower part of the obliquely arranged charging tray.

Preferably, the housing 400 comprises a housing upper cover, a housing left side plate, a housing right side plate, a housing rear cover, a housing front cover, a bottom plate, a power switch, a communication connector, a DC socket, a pressing wheel and a discharging connector; the bottom of the vacuum device is fixed to the front part of the upper side of the bottom plate, and the bottom of the roller mechanism is fixed to the rear part of the upper side of the bottom plate; the middle of the front part of the upper cover of the shell is provided with an observation window, and the rear end of the upper cover of the shell is also provided with an observation part for checking the counting of the display board which is over against the lower side of the upper cover of the shell; a pressing wheel is arranged at the position, close to the material tray of the turntable mechanism, of the inner side of the upper part of the left side plate of the shell, and a discharging joint is arranged at the position, close to the material tray of the turntable mechanism, of the inner side of the upper part of the right side plate of the shell; a power switch, a communication connector and a DC socket are provided on the rear end side of the housing rear cover.

Preferably, the whole upper cover (401) of the shell is integrally formed by a transparent reinforced plastic plate.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. after the screw passes through the rotatory material loading of cylinder, directly drop to the charging tray behind the charging chute on, in sucking the screw into the material mouth on the charging tray by vacuum adsorption's mode, send the screw to the assigned position by the charging tray is rotatory again. The feeding in a rail arrangement mode is omitted in the operation process, and the material blocking position which is easy to exist in the traditional machine table is avoided.

2. After the screw is rotated to the designated position by the material tray, the sensor below the material port can detect and judge the length of the screw thread, so as to judge whether the screw is usable or not; the whole machine has no vibration, so that the inductor achieves certain precision and accuracy when judging the screw. After the screw is judged to be unavailable, the tray can continue to operate the screw to leave the material taking point, and then the screw reaches the material discharging position to blow the unavailable screw out of the machine to a defective product area by using compressed air.

3. Because the machine station saves devices such as vibration, a track and the like of the traditional machine station, a large number of assembly parts are reduced, and the assembly difficulty is reduced.

4. The main working components are visual, so that the internal working condition can be well observed, and the maintenance difficulty is reduced.

5. The noise is lower in the machine operation process, and the requirement on the working environment is relatively lower.

Drawings

FIG. 1 is a schematic view of a conventional feeder;

FIG. 2 is an assembly view of the feeder of the present invention;

fig. 3 is a whole machine view of the feeder of the present invention after the casing is assembled;

FIG. 4 is an exploded view of the turntable mechanism;

FIG. 5 is an assembly view of the turntable mechanism;

figure 6 is a schematic view of a sheave and a thumb wheel;

FIG. 7 is an exploded view of the vacuum apparatus;

FIG. 8 is an assembled view of the vacuum apparatus;

FIG. 9 is an exploded view of the roller mechanism;

fig. 10 is an assembly view of the drum mechanism.

In the figure:

100. a turntable mechanism; 1010. a material tray; 1011. a material port; 1020. a material tray backing plate; 1021. a notch; 1030. a material tray rotating shaft; 1040. carrying out tray bearing; 1050. a material tray fixing plate; 1051. a negative pressure through hole of the fixing plate; 1060. a laser displacement sensor; 1070. a sensor mount; 1080. an infrared mount; 1090. receiving an infrared optocoupler; 1100. an infrared emitting optocoupler; 1110. putting the bearing on a thumb wheel; 1120. a grooved wheel; 1121. the periphery of the grooved pulley is arc-shaped; 1130. a thumb wheel; 1131. the outer circular arc of the thumb wheel; 1140. putting the bearing in the bearing by a thumb wheel; 1150. an F-type optical coupler; 1160. a turntable motor fixing seat; 1161. the upper end is open; 1170. a left U-shaped groove fixing piece; 1180. a right U-shaped groove fixing piece; 1190. f-shaped optical coupler limiting pieces; 1200. a bevel gear; 1210. a tray drive motor; 1220. a motor fixing frame; 1230. a gas pipe joint;

200. a vacuum device; 210. a roller mechanism fixing plate; 220. an electromagnetic valve; 230. a solenoid valve fixing seat; 240. an air inlet joint; 250. a vacuum generator; 251. a negative pressure joint;

300. a drum mechanism; 3010. a control panel; 3020. a control machine plate fixing plate; 3030. an external tooth roller; 3031. a scooping sheet; 3040. b, perlin; 3050. a roller fixing plate; 3060. a charging chute fixing frame; 3070. a charging chute; 3080. a charging chute support; 3090. a U-shaped groove; 3100. a display panel; 3110. a drum driving motor; 3120. an M1 pinion gear;

400. a housing; 401. an upper cover of the shell; 402. a left side plate of the housing; 403. a housing right side plate; 404. a housing rear cover; 405. a housing front cover; 406. a base plate; 407. a power switch; 408. a communication connector; 409. a DC outlet; 410. a pinch roller; 411. and a discharging joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 2 to 10, a vacuum adsorption type automatic screw arraying and sorting feeder includes a turntable mechanism 100, a vacuum device 200, and a roller mechanism 300, wherein a lower portion of the turntable mechanism 100 is connected to the vacuum device 200, a front end of the roller mechanism 300 is connected to a rear end of the roller mechanism 300, and the turntable mechanism 100, the vacuum device 200, and the roller mechanism 300 are disposed in a housing mechanism 400; the vacuum device 200 provides a negative pressure to the turntable mechanism 100 connected to the upper end thereof, thereby generating an adsorption force to the screw transferred from the drum mechanism 300 to the turntable mechanism 100.

Turntable mechanism

Referring to fig. 4 to 6, the turntable mechanism 100 is provided with a stepping feeding unit, a material opening sensing unit, a screw measuring unit and a metering unit, the material opening sensing unit stops the stepping work material unit when sensing that a screw is at the material opening, the screw measuring unit measures whether the screw parameter meets the requirement, and the metering unit counts and displays the screws meeting the requirement.

The stepping feeding unit of the turntable mechanism 100 includes a tray 1010, a tray backing plate 1020, a tray rotating shaft 1030, a tray bearing 1040, a tray fixing plate 1050, a dial wheel upper bearing 1110, a grooved wheel 1120, a dial wheel 1130, a dial wheel lower bearing 1140, an F-shaped optical coupler 1150, an F-shaped optical coupler spacing plate 1190, a turntable motor fixing seat 1160, a left U-shaped groove fixing plate 1170, a right U-shaped groove fixing plate 1180, a bevel gear 1200, a tray driving motor 1210, a motor fixing frame 1220 and a gas pipe joint 1230.

Connection relation of the stepping feeding units: the charging tray peignin 1040 is mounted in an inner hole of the charging tray fixing plate 1050, the charging tray backing plate 1020 covers the charging tray peignin 1040 and is locked on the charging tray fixing plate 1050, and a fixing plate negative pressure through hole 1051 which is through up and down is formed in a step hole on the outer side of the inner hole of the charging tray fixing plate 1050; the material tray rotating shaft 1030 penetrates through the material tray bearing 1040, the lower end of the material tray rotating shaft is connected with the grooved pulley 1120, and the upper end of the material tray rotating shaft 1030 penetrates through an inner hole of the material tray 1010; the upper end of the shifting wheel 1130 is embedded into the lower surface of the tray fixing plate 1050 through the shifting wheel upper bearing 1110, and the lower end of the shifting wheel 1130 sequentially penetrates through the shifting wheel lower bearing 1140, the turntable motor fixing seat 1160 and the F-shaped optical coupler limiting sheet 1190 and then is connected with a bevel gear 1200 which is vertically arranged; the F-shaped optocoupler 1150 is arranged on the right side of the front end of the turntable motor fixing seat 1160; the side plate of the motor fixing frame 1220 is fixed to the front end face of the turntable motor fixing seat 1160, the tray driving motor 1210 is fixed to the motor fixing frame 1220, the end of the motor shaft is provided with another horizontally arranged conical gear 1200, and the two conical gears 1200 are meshed; a left U-shaped groove fixing piece 1170 and a right U-shaped groove fixing piece 1180 are arranged on the two sides of the turntable motor fixing seat 1160; the air pipe joint 1230 is arranged at the rear end of the turntable motor fixing seat 1160; the turntable motor fixing seat 1160 is internally provided with an air passage, and is provided with an upper end opening 1161 and a rear end opening, the upper end opening 1161 is communicated with a fixing plate negative pressure through hole 1051 of the charging tray fixing plate 1050, and a waist-shaped notch 1021 is formed in the charging tray base plate 1020, so that negative pressure suction force formed by the vacuum device 200 directly acts in the notch 1021 on the charging tray base plate 1020; a material opening 1011 processed according to the diameter of the screw thread is formed in the material tray 1010, and the notch 1021 is communicated with the material opening 1011 on the material tray 1010 to form suction on the screw falling on the material tray 1010.

Further, the tray driving motor 1210 operates to drive the bevel gear 1200 mounted at the shaft end thereof to operate, thereby driving the dial wheel 1130 to operate; each rotation of the thumb wheel 1130 causes the sheave 1120 to rotate 1/12 times.

The sheave 1120 is connected to the tray 1010 through the tray rotating shaft 1030, so as to drive the tray 1010 to perform 1/12 turns. The position of the material opening 1011 arranged on the tray 1010 is the same as the position of the outer circumference arc 1121 of the grooved wheel on the grooved wheel 1120, and after 1/12 circles of rotation of the tray 1010, the material opening 1011 reaches the detection position of the infrared optical coupler (1090/1100).

When the outer circular arc 1131 of the thumb wheel on the thumb wheel coincides with the outer circular arc 1121 of the grooved wheel on the grooved wheel, the material tray 1010 is in a locked state and cannot rotate randomly, and the screw in the material port 1011 waits for taking.

The screw measuring unit of the turntable mechanism 100 includes a laser displacement sensor 1060 fixedly connected to the sensor fixing frame 1070, the front end of the laser displacement sensor 1060 is connected to the rear end face of the sensor fixing frame 1070, and the sensor fixing frame 1070 is fixed to the front end side of the tray fixing plate 1050, so that the laser displacement sensor 1060 is located below the tray feeding opening.

Wherein, carousel mechanism 100's material mouth sensing unit includes infrared mount 1080, receives infrared opto-coupler 1090 and transmission infrared opto-coupler 1100, receive infrared opto-coupler 1090 and transmission infrared opto-coupler 1100 set up in infrared mount 1080 both ends, infrared mount 1080 both sides are through connecting portion fixed connection to on the preceding terminal surface of sensor mount 1070.

Vacuum device

Referring to fig. 7 and 8, the vacuum apparatus 200 includes a drum mechanism fixing plate 210, a solenoid valve 220, a solenoid valve fixing base 230, an air inlet connector 240, a vacuum generator 250, and a negative pressure connector 251.

Connection relation: the solenoid valve 220 is arranged at the front end of the solenoid valve fixing seat 230, the vacuum generator 250 and the air inlet connector 240 are arranged at the rear end of the solenoid valve fixing seat 230, and the roller mechanism fixing plate 210 is arranged at the upper side of the solenoid valve fixing seat 230; the negative pressure joint 251 is connected with the body of the vacuum generator 250 through a knob switch; the interface end of the negative pressure connector 251 is connected with the air pipe connector 1230 of the turntable mechanism 100 through an air pipe, so as to provide negative pressure for the turntable mechanism 100.

Roller mechanism

Referring to fig. 9 and 10, the drum mechanism 300 includes a controller board 3010, a controller board fixing plate 3020, an external gear drum 3030, a scooping piece 3031, a baclin 3040, a drum fixing plate 3050, a chute fixing frame 3060, a chute 3070, a chute support 3080, a U-shaped groove 3090, a display board 3100, a drum driving motor 3110, and a M1 pinion 3120.

Connection relation: a controller board 3010 is connected to the rear end side of a controller board fixing plate 3020, an external gear cylinder 3030 is arranged on the front end side of the controller board fixing plate 3020, and scooping pieces 3031 are uniformly distributed on the inner cylinder peripheral wall of the external gear cylinder 3030; the front end of the controller board fixing plate 3020 is fixedly connected to the inner side surface of the rear end of the roller fixing plate 3050 after being sleeved with the bearing 3040 through a connecting rivet at the front end; the display panel 3100 is attached to the lower side of the upper end plate of the drum fixing plate 3050; the display panel 3100 and the corresponding technical sensors constitute a metering unit. The rear end plate of a charging chute fixing frame 3060 is fixed to the upper part of the front end surface of the roller fixing plate 3050, and a charging chute 3070 is mounted on the charging chute support 3080 and then connected to the charging chute fixing frame 3060; the U-shaped groove 3090 is connected to the lower part of the front end face of the roller fixing plate 3050; a drum driving motor 3110 is fixed to the lower part of the U-shaped groove 3090, and the shaft end of the motor is engaged with the external gear drum 3030 through a pinion 3120 installed on the M1 so as to drive the external gear drum 3030 to rotate; the lower part of the inclined charging groove 3070 is opposite to the lower part of the inclined charging tray 1010.

The U-shaped groove 3090 in the trough chamber is inclined downwards from the outer end to the external gear roller 3030 in the middle of the roller fixing plate 3050, and the arc bottom edge of the U-shaped groove 3090 is adjacent to the arc of the inner cylinder surface of the external gear roller 3030 in the same way.

Outer casing

Referring to fig. 2 and 3, the housing 400 includes a housing upper cover 401, a housing left side plate 402, a housing right side plate 403, a housing rear cover 404, a housing front cover 405, and a bottom plate 406. The accessories include power switch 407, communications connector 408, DC jack 409, pinch roller 410, and tap 411.

Wherein, the bottom of the vacuum device 200 is fixed to the upper front part of the bottom plate 406, and the bottom of the roller mechanism 300 is fixed to the upper rear part of the bottom plate 406; an observation window is arranged in the middle of the front part of the upper shell cover 401, and an observation part is also arranged at the rear end of the upper shell cover 401 so as to check the counting of the display panel 3100 facing the lower side of the upper shell cover; a pinch roller 410 is arranged at the position, close to the material tray 1010 of the turntable mechanism 100, on the inner side of the upper part of the left side plate 402 of the shell, and a discharging joint 411 is arranged at the position, close to the material tray 1010 of the turntable mechanism 100, on the inner side of the upper part of the right side plate 403 of the shell; a power switch 407, a communication connector 408, and a DC outlet 409 are provided on the rear end side of the housing rear cover 404.

Further, the whole upper cover 401 of the housing is integrally formed by a transparent reinforced plastic plate, so that the operation condition in the machine body can be observed conveniently.

The working principle is as follows: the screw is placed in the trough chamber, a U-shaped groove 3090 is installed in the trough chamber and inclines towards the outer tooth roller 3030, and the screw slides into the roller. After the power is supplied to the power supply, the power supply is powered on,

1. the drum driving motor 3110 operates to rotate the M1 pinion gear 3120, thereby rotating the external gear drum 3030; while the outer cylinder 3030 rotates, the scooping piece 3031 in the inner portion of the outer cylinder brings the screw to a high point and then drops into the chute 3070, the chute 3070 inclines toward the tray 1010, and the screw slides along the chute onto the tray 1010 after dropping.

2. After the air inlet connector 240 is connected with an air source, negative pressure is formed at the negative pressure connector 251 of the vacuum generator 250 after the electromagnetic valve 220 is electrified, the negative pressure connector 251 of the vacuum generator 250 is respectively connected with an air pipe connector 1230 on the turntable mechanism, an air passage is arranged in the turntable motor fixing seat 1160, an opening 1161 at the upper end of the air passage is communicated with a negative pressure through hole 1051 of a fixing plate 1050 of the tray fixing plate, and a notch 1021 is arranged on the tray base plate 1020, so that the negative pressure suction force formed by the vacuum generator 250 directly acts on the notch 1021 on the tray base plate 1020. The tray 1010 is provided with a material port 1011 formed by processing according to the diameter of the screw thread, the notch 1021 is communicated with the material port 1011 on the tray 1010, and the screw is sucked into the material port 1011 after falling down on the tray 1010 due to the vacuum suction generated on the material port 1011.

3. The material tray driving motor 1210 operates to drive the conical gear 1200 mounted at the shaft end to operate, so as to drive the shifting wheel 1130 to operate; the thumb wheel 1130 rotates to drive the grooved pulley 1120 to rotate 1/12 circles each time, and the grooved pulley 1120 is connected with the tray 1010 through the tray rotating shaft 1030, so that the tray 1010 is driven to run for 1/12 circles. The position of the material opening 1011 arranged on the tray 1010 is the same as the position of the outer circumference arc 1121 of the grooved wheel on the grooved wheel 1120, and after 1/12 circles of rotation of the tray 1010, the material opening 1011 reaches the detection position of the infrared optical coupler (1090/1100). Under the condition that a screw is detected in the material port 1011, an F-shaped optical coupler limit sheet 1190 arranged on the dial wheel 1130 detects through the F-shaped optical coupler 1150, and the dial wheel 1130 is stopped at a specified position. A pressing wheel 410 is arranged above the material tray 1010, and screws floating in the material opening 1011 are pressed into the material opening 1011, so that the thread diameter part of the screws completely enters the material opening 1011. At this time, the outer circular arc 1131 of the thumb wheel on the thumb wheel coincides with the outer circular arc 1121 of the grooved wheel on the grooved wheel, the material tray 1010 is in a locked state and cannot rotate randomly, and the screw in the material port 1011 waits for taking.

4. When the infrared optical coupler (1090/1100) detects a screw and the tray 1010 stops, the laser displacement sensor 1060 arranged below the material port 1011 irradiates to the bottom of the screw through laser to measure the length of the screw at the material taking position, and if the measured value is the required value, the tray 1010 is continuously in a stopping state to wait for the screw to be taken; after the screw is removed, panel 3100 is shown accumulating a count of + 1. If the measured value is not the required value, the material tray continues to rotate until the next screw is in place; when the bad screws are rotated to the discharging point, the bad screws are discharged out of the machine through the discharging joint 411.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (9)

1. The utility model provides an automatic screw permutation of vacuum adsorption type selects a grade feeder which characterized in that: the feeder comprises a turntable mechanism (100), a vacuum device (200) and a roller mechanism (300), wherein the lower part of the turntable mechanism (100) is connected to the vacuum device (200), the front end of the roller mechanism (300) is connected with the rear end of the roller mechanism (300), and the turntable mechanism (100), the vacuum device (200) and the roller mechanism (300) are arranged in a shell (400); the vacuum device (200) provides negative pressure for the turntable mechanism (100) connected with the upper end of the vacuum device, so that the screw conveyed to the turntable mechanism (100) by the roller mechanism (300) is adsorbed; the turntable mechanism (100) is provided with a stepping feeding unit, a material port sensing unit, a screw measuring unit and a metering unit, the material port sensing unit pauses the advancing of the stepping work material unit when sensing that the material port has screws, and the screw measuring unit measures whether the screw parameters meet the requirements or not, and the metering unit counts and displays the screws meeting the requirements.

2. The vacuum adsorption type automatic screw arraying and sorting feeder according to claim 1, characterized in that: the stepping feeding unit of the turntable mechanism (100) comprises a material tray (1010), a material tray base plate (1020), a material tray rotating shaft (1030), a material tray bearing forest (1040), a material tray fixing plate (1050), a shifting wheel upper bearing forest (1110), a grooved pulley (1120), a shifting wheel (1130), a shifting wheel lower bearing forest (1140), an F-shaped optical coupler (1150), an F-shaped optical coupler limiting plate (1190), a turntable motor fixing seat (1160), a left U-shaped groove fixing plate (1170), a right U-shaped groove fixing plate (1180), a bevel gear (1200), a material tray driving motor (1210), a motor fixing frame (1220) and an air pipe joint (1230);

the charging tray bearing plate (1020) covers the charging tray bearing plate (1040) and is locked on the charging tray fixing plate (1050), and a fixing plate negative pressure through hole (1051) which is communicated up and down is formed in a step hole on the outer side of the inner hole of the charging tray fixing plate (1050); the material tray rotating shaft (1030) penetrates through the material tray bearing (1040), the lower end of the material tray rotating shaft is connected with the grooved pulley (1120), and the upper end of the material tray rotating shaft (1030) penetrates through an inner hole of the material tray (1010); the upper end of the shifting wheel (1130) is embedded into the lower surface of the tray fixing plate (1050) through the upper bearing (1110) of the shifting wheel, and the lower end of the shifting wheel (1130) sequentially penetrates through the lower bearing (1140) of the shifting wheel, the turntable motor fixing seat (1160) and the F-shaped optical coupler limiting sheet (1190) and then is connected with a bevel gear (1200) which is vertically arranged; the F-shaped optical coupler (1150) is arranged on the right side of the front end of the turntable motor fixing seat (1160); the side plate of the motor fixing frame (1220) is fixed to the front end face of the turntable motor fixing seat (1160), the tray driving motor (1210) is fixed to the motor fixing frame (1220), the end of the motor shaft is provided with another horizontally arranged conical gear (1200), and the two conical gears (1200) are meshed; a left U-shaped groove fixing piece (1170) and a right U-shaped groove fixing piece (1180) are arranged on two sides of the turntable motor fixing seat (1160); the air pipe joint (1230) is arranged at the rear end of the turntable motor fixing seat (1160);

an air channel is arranged in the turntable motor fixing seat (1160), an upper end opening (1161) and a rear end opening are formed in the turntable motor fixing seat, the upper end opening (1161) is communicated with a fixing plate negative pressure through hole (1051) of the charging tray fixing plate (1050), and a kidney-shaped notch (1021) is formed in the charging tray base plate (1020), so that negative pressure suction force formed by the vacuum device (200) directly acts in the notch (1021) in the charging tray base plate (1020); a material opening (1011) processed according to the diameter of the screw thread is formed in the material tray (1010), and the notch (1021) is communicated with the material opening (1011) in the material tray (1010) to form suction on the screw falling on the material tray (1010).

3. The vacuum adsorption type automatic screw arraying and sorting feeder according to claim 2, characterized in that: the screw measuring unit of the turntable mechanism (100) comprises a laser displacement sensor (1060) fixedly connected to a sensor fixing frame (1070), the front end of the laser displacement sensor (1060) is connected to the rear end face of the sensor fixing frame (1070), and the sensor fixing frame (1070) is fixed to the front end side of a tray fixing plate (1050), so that the laser displacement sensor (1060) is located below a tray feeding hole.

4. The vacuum adsorption type automatic screw arraying and sorting feeder according to claim 3, characterized in that: the material mouth sensing unit of carousel mechanism (100) includes infrared mount (1080), receives infrared opto-coupler (1090), and transmission infrared opto-coupler (1100), receive infrared opto-coupler (1090) and transmission infrared opto-coupler (1100) set up in infrared mount (1080) both ends, infrared mount (1080) both sides are through connecting portion fixed connection to on the preceding terminal surface of sensor mount (1070).

5. The vacuum adsorption type automatic screw arraying and sorting feeder according to claim 2, characterized in that: the vacuum device (200) comprises a roller mechanism fixing plate (210), an electromagnetic valve (220), an electromagnetic valve fixing seat (230), an air inlet joint (240), a vacuum generator (250) and a negative pressure joint (251); the electromagnetic valve (220) is arranged at the front end of the electromagnetic valve fixing seat (230), the vacuum generator (250) and the air inlet connector (240) are arranged at the rear end of the electromagnetic valve fixing seat (230), and the roller mechanism fixing plate (210) is arranged on the upper side of the electromagnetic valve fixing seat (230); the negative pressure joint (251) is connected with the body of the vacuum generator (250) through a knob switch; the interface end of the negative pressure joint (251) is connected with an air pipe joint (1230) of the turntable mechanism (100) through an air pipe, so as to provide negative pressure for the turntable mechanism (100).

6. The vacuum adsorption type automatic screw arraying and sorting feeder according to claim 1, characterized in that: the roller mechanism (300) comprises a controller plate (3010), a controller plate fixing plate (3020), an external gear roller (3030), a scooping piece (3031), a bearing (3040), a roller fixing plate (3050), a blanking groove fixing frame (3060), a blanking groove (3070), a blanking groove support (3080), a U-shaped groove (3090), a display plate (3100), a roller driving motor (3110) and an M1 pinion (3120);

the control machine plate (3010) is connected to the rear end side of the control machine plate fixing plate (3020), the external gear roller (3030) is arranged on the front end side of the control machine plate fixing plate (3020), and scooping pieces (3031) are uniformly distributed on the peripheral wall of the inner cylinder of the external gear roller (3030); the front end of the controller board fixing plate (3020) is fixedly connected to the inner side surface of the rear end of the roller fixing plate (3050) after being sleeved with the bearing (3040) through a connecting rivet at the front end; the display panel (3100) is connected to the lower side surface of the upper end plate of the drum fixing plate (3050); the rear end plate of a charging chute fixing frame (3060) is fixed to the upper portion of the front end face of the roller fixing plate (3050), and a charging chute (3070) is mounted on the charging chute support (3080) and then connected to the charging chute fixing frame (3060); the U-shaped groove (3090) is connected to the lower part of the front end face of the roller fixing plate (3050); a roller driving motor (3110) is fixed to the lower part of the U-shaped groove (3090), and the shaft end of the motor is meshed with the external gear roller (3030) through a mounted M1 pinion (3120) so as to drive the external gear roller (3030) to rotate; the lower part of the obliquely arranged charging chute (3070) is opposite to the lower part of the obliquely arranged charging tray (1010).

7. The vacuum adsorption type automatic screw arraying and sorting feeder according to claim 6, characterized in that: the groove shape of a U-shaped groove (3090) in the groove chamber is inclined downwards from the outer end to the outer gear roller (3030) in the middle of the roller fixing plate (3050), and the arc bottom edge of the U-shaped groove (3090) is adjacent to the arc shape of the inner cylinder surface of the outer gear roller (3030) in the same way.

8. The vacuum adsorption type automatic screw arraying and sorting feeder according to claim 6, characterized in that: the shell (400) comprises a shell upper cover (401), a shell left side plate (402), a shell right side plate (403), a shell rear cover (404), a shell front cover (405), a bottom plate (406), a power switch (407), a communication joint (408), a DC socket (409), a pressing wheel (410) and a discharging joint (411);

the bottom of the vacuum device (200) is fixed to the upper front part of the bottom plate (406), and the bottom of the roller mechanism (300) is fixed to the upper rear part of the bottom plate (406); an observation window is arranged in the middle of the front part of the upper shell cover (401), and the rear end of the upper shell cover (401) is also provided with an observation part for checking the counting of the display panel (3100) opposite to the lower side of the upper shell cover; a pinch roller (410) is arranged at the position, close to the material tray (1010) of the turntable mechanism (100), of the inner side of the upper part of the left side plate (402) of the shell, and a discharging joint (411) is arranged at the position, close to the material tray (1010) of the turntable mechanism (100), of the inner side of the upper part of the right side plate (403) of the shell; a power switch (407), a communication connector (408), and a DC outlet (409) are provided on the rear end side of the housing rear cover (404).

9. The vacuum adsorption type automatic screw arraying and sorting feeder according to claim 8, characterized in that: the whole upper cover (401) of the shell is integrally formed by adopting a transparent reinforced plastic plate.

Images