CN217167384U - Multi-station air-blowing type screw carrier feeding and returning circulation mechanism - Google Patents

Abstract

The utility model provides a multistation air-blowing formula screw carrier material loading, feed back circulation mechanism, include: a pedestal; the turntable mechanism is arranged on the pedestal and comprises a four-station turntable and a turntable driving device, and four carrier jigs which are distributed in a circumferential array by taking the center of the turntable as the circle center are arranged on the end edge of the four-station turntable; the carrier feeding mechanism is arranged on one side of the discharging station of the turntable mechanism; and the top opening of the carrier conveying pipe is arranged under the four-station turntable discharging station carrier jig. This circulation mechanism simple structure, convenient operation adopts the screw carrier to replace traditional screw direct feeding, can adapt the transport of the screw of multiple different models through the screw carrier, and strong adaptability can carry the screw in pipeline reciprocating stable movement moreover, stops the emergence of phenomenons such as upset, card shell.

Description

Multi-station air-blowing type screw carrier feeding and returning circulation mechanism

Technical Field

The utility model relates to a go up screw automatic assembly technical field, concretely relates to multistation air-blowing formula screw carrier material loading, feed back circulation mechanism.

Background

Screw connection is a common means in connection with products such as mechanical products and household electrical appliances, and therefore, screwing is the most basic operation in the assembly process of the products. In the traditional assembly process, a manual screwdriver is adopted to screw a screw to assemble a product, the original manual operation mode needs more assembly personnel, the labor efficiency is low, the operation is inconsistent, and meanwhile, the product quality cannot be guaranteed.

The emergence of "air-blowing formula" automatic screw machine because can accomplish automatic feed supplement, improve work efficiency greatly, the automatic screw machine of hand-held type, the flexible operation is simple and convenient, but mainly has following defect:

(1) the existing 'air-blowing' automatic screw machine adopts a pipeline to directly convey screws, the inner diameter of a conveying pipeline and the inner diameter of a screw through hole above a chuck are matched with the screws, the over-large screws can overturn the over-small screws and cannot pass through the over-small screws, and practically, each screw machine is customized for a certain specific screw, so that the universality is poor, the types of the screws are very many, particularly, the diameters of screw caps are different, the application range of the screw machine is greatly limited, particularly, the existing products are updated more and more quickly, the screws used after the products are updated can be changed, and the original screw machine cannot be used;

(2) the screw conveying pipeline is a common circular high-pressure air plastic hose, compressed air is used for blowing the screw to the screw chuck through the conveying pipeline, the screw passes through the conveying pipeline and the chuck during conveying, the screw is required to be kept to be in an 'above-head and below-foot' mode, namely, a cap head of the screw is below an upper screw end, and therefore the screw conveying pipeline can only be used for a slender screw (the length of the screw is at least 1.2 times of the diameter of the cap head), and otherwise the screw can be overturned during conveying.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a multistation air-blowing formula screw carrier material loading, feed back circulation mechanism, design benefit adopts the screw carrier to replace traditional screw direct material loading, can adapt the transport of the screw of multiple different models through the screw carrier, and strong adaptability can carry the screw in pipeline reciprocating stable removal moreover, stops the emergence of phenomenons such as upset, card shell.

In order to realize the technical scheme, the utility model provides a multistation air-blowing formula screw carrier material loading, feed back circulation mechanism, include: a pedestal; the turntable mechanism is arranged on the pedestal and comprises a four-station turntable and a turntable driving device, the four-station turntable is arranged on the turntable driving device, and four carrier jigs which are distributed in a circumferential array by taking the center of the turntable as the circle center are arranged on the end edge of the four-station turntable; the carrier feeding mechanism is arranged on one side of a discharging station of the turntable mechanism and comprises a support arranged on a pedestal, a magnetic seat fixing device is arranged on the support, a magnetic seat is arranged on the magnetic seat fixing device, a carrier blowing nozzle is arranged on the magnetic seat and vertically and downwardly faces the discharging station in the four-station turntable, an open sealing plate which faces the carrier jig is further arranged on the inner side of the support, and a buffer spring and an in-place detection sensor are arranged on the rear side of the open sealing plate; screw discharge mechanism, through carrier duct connection between screw discharge mechanism and the carrier feed mechanism, the uncovered setting in top of carrier conveyer pipe is under quadruplex position carousel ejection of compact station carrier tool, and the screw carrier can be placed in carrier tool and carrier conveyer pipe, screw discharge mechanism includes ejection of compact module seat, be provided with the carrier chamber in the ejection of compact module seat, carrier chamber and carrier conveyer pipe intercommunication set up the T type blown down tank that is linked together with the carrier chamber on the leading flank of ejection of compact module seat, ejection of compact air cock install the trailing flank at ejection of compact module seat and with carrier chamber intercommunication, still be provided with the gate groove on the ejection of compact module seat, the gate groove sets up between carrier chamber and T type blown down tank, the gate inserts to the gate inslot.

In the technical scheme, during actual work, empty screw carriers are firstly placed in four carrier tools of a four-station turntable, when the empty screw carriers rotate to a feeding station of the four-station turntable, screws are blown into the empty screw carriers, then the four-station turntable carries the screw carriers with the screws to gradually rotate to a discharging station, firstly, the screw carriers with the screws are suspended at a top opening of a carrier conveying pipe right below the discharging station carrier tools of the four-station turntable through magnetic force adsorption between a magnetic seat and the screw carriers, then carrier blowing air nozzles work, the screw carriers suspended at the top opening of the carrier conveying pipe are blown into the carrier conveying pipe and are finally conveyed into a carrier cavity of a discharging module seat through the carrier conveying pipe, at the moment, a gate is opened, and the screws in the screw carriers can be discharged outwards through a T-shaped discharging groove by the working of the discharging air nozzles, after the screw discharging is completed, the gate is closed, the T-shaped discharging channel is closed, a closed space is formed at the bottom of the carrier conveying pipe, the discharging air nozzle is used for ventilating, the air flow blows the empty screw carrier back to the magnetic seat of the carrier feeding mechanism for re-adsorption and hovering, the in-place detection sensor gives a signal after detecting that the empty screw carrier returns, the four-station turntable rotates again, the next screw carrier with the screw is moved to the position below the magnetic seat, and the next circulation is carried out.

Preferably, the carrier jig comprises a jig body fixed on the four-station turntable, the air blowing through hole is formed in the top of the jig body, the outer end face side of the jig body is provided with a feeding and discharging opening, the screw carrier can be blown downwards through the air blowing through hole in the actual working process, and the screw carrier can be conveniently fed into a feeding station through the feeding and discharging opening.

Preferably, the magnetic base fixing device comprises a telescopic cylinder vertically and downwardly installed at the top of the support, a transverse plate is installed on a telescopic shaft of the telescopic cylinder, guide rods vertically and downwardly arranged are installed at the left end and the right end of the transverse plate in parallel, the guide rods longitudinally penetrate through guide rod limiting seats installed on the support, the magnetic base is fixed at the bottom of the guide rods, and the position of the magnetic base can be adjusted through the telescopic cylinder during actual work.

Preferably, the screw carrier comprises a carrier body, the transverse section of the carrier body is set to be non-circular, the section of the inner cavity of the pipeline of the carrier conveying pipe is also correspondingly set to be non-circular corresponding to the transverse section of the carrier body, a T-shaped discharge chute is formed in the carrier body, a magnetic substance capable of being adsorbed by the magnetic seat in the carrier feeding mechanism is installed at the top of the carrier body, and the magnetic substance is used for being adsorbed and suspended by the magnetic seat. The transverse section of the carrier body is set to be non-circular, so that the carrier body cannot rotate in the conveying pipeline, if the carrier body is designed to be circular, the screw carrier can easily deflect in the transverse direction in the conveying process, and therefore a complex mechanism for secondary positioning of the carrier is required to be additionally arranged at the screw feeding position and the screw discharging position, the structure is complex and bloated, and handheld operation cannot be carried out. Through having seted up T type groove on the leading flank at the carrier body, be convenient for load various types of screw, as long as screw head and screw post do not exceed the biggest or minimum limit requirement in T type groove can, compare traditional only can a pipeline match single type screw, its adaptability strengthens greatly.

Preferably, the transverse section of the carrier body is oval, a T-shaped groove is formed in the front side face of the carrier body, the T-shaped groove does not penetrate through the front side face and the rear side face of the carrier body, a blowhole communicated with the T-shaped groove is formed in the rear side face of the carrier body, and a magnet is mounted at the top of the carrier body. During the actual work, can adsorb with the magnetic force seat through the magnet at carrier body top, ejection of compact air cock can blow out the screw in the T type groove through the blowhole.

Preferably, the transverse cross section of the carrier body is set to be one of an ellipse, a hexagon and a quadrangle, and the cross section of the inner cavity of the pipeline of the carrier conveying pipe is correspondingly set to be a non-circular shape corresponding to the transverse cross section of the carrier body, so that the carrier body cannot easily rotate in the conveying pipeline, and the carrier is prevented from deflecting in the transverse direction in the conveying process.

Preferably, the carrier blowing air nozzle and the discharging air nozzle are respectively connected with a high-pressure air source installed on the pedestal through high-pressure air pipes, and the high-pressure air pipes are provided with electromagnetic valves.

Preferably, the discharge module seat is further provided with an alignment mounting plate, so that the discharge module seat and the chuck mechanism can be conveniently butted and mounted.

The utility model provides a pair of multistation air-blowing formula screw carrier material loading, feed back circulation mechanism's beneficial effect lies in:

(1) this multistation air-blowing formula screw carrier material loading, feed back circulation mechanism simple structure, convenient operation adopts the screw carrier to replace traditional screw direct feeding, can adapt the transport of the screw of multiple different models through the screw carrier, and strong adaptability can carry the screw in pipeline reciprocating stable movement moreover, stops the emergence of phenomenons such as upset, card shell. During actual work, empty screw carriers are firstly placed in four carrier jigs of a four-station turntable, when the empty screw carriers rotate to a feeding station of the four-station turntable, screws are blown into the empty screw carriers, then the four-station turntable carries the screw carriers with the screws to gradually rotate to a discharging station, firstly, the screw carriers with the screws are suspended at the top openings of carrier conveying pipes right below the carrier jigs of the four-station turntable discharging station through magnetic force adsorption between a magnetic seat and the screw carriers, then, carrier blowing air nozzles work to blow the screw carriers suspended at the top openings of the carrier conveying pipes into the carrier conveying pipes, finally, the screw carriers are conveyed into carrier cavities of discharging module seats through the carrier conveying pipes, at the moment, the gates are opened, and the screws in the screw carriers can be discharged outwards through T-shaped discharging grooves through the discharging air nozzles work, after the screw discharging is completed, the gate is closed, the T-shaped discharging channel is closed, an airtight space is formed at the bottom of the carrier conveying pipe, the discharging air nozzle is ventilated, the air flow blows the empty screw carrier back to the magnetic seat of the carrier feeding mechanism for re-adsorption and hovering, the in-place detection sensor gives a signal after detecting that the empty screw carrier returns, the four-station turntable rotates again, the next screw carrier with a screw is moved to the position below the magnetic seat, and the next circulation is carried out. The accuracy and the efficiency of the up-and-down reciprocating cycle of the screw carrier are very high, and the problem that in the prior art, each screw machine can only be customized for a certain specific screw, and the universality is very poor is solved.

(2) This multistation air-blowing formula screw carrier material loading, feed back circulation mechanism can the screw of multiple different models of adaptation through the structural design to screw carrier and carrier conveyer pipe to carry the screw and stably remove in pipeline, stop the emergence of taking place phenomenons such as upset, card shell. The transverse section of the carrier body is set to be non-circular, so that the carrier body cannot rotate in the conveying pipeline, if the carrier body is designed to be circular, the screw carrier can easily deflect in the transverse direction in the conveying process, and therefore a complex mechanism for secondary positioning of the carrier is required to be additionally arranged at the screw feeding position and the screw discharging position, the structure is complex and bloated, and handheld operation cannot be carried out. Through having seted up T type groove on the leading flank at the carrier body, be convenient for load various types of screw, as long as screw head and screw post do not exceed the biggest or minimum limit requirement in T type groove can, compare traditional only can a pipeline match single type screw, its adaptability strengthens greatly.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the connection three-dimensional structure of the middle turntable mechanism and the carrier feeding mechanism of the present invention.

Fig. 3 is a schematic view of the three-dimensional structure of the feeding mechanism of the carrier of the present invention.

Fig. 4 is a schematic view of the three-dimensional structure of the feeding mechanism of the carrier of the present invention.

Fig. 5 is a schematic view of the three-dimensional structure of the middle screw discharging mechanism of the present invention.

Fig. 6 is an explosion diagram of the middle screw discharging mechanism of the present invention.

Fig. 7 is a front view of the three-dimensional structure of the oval screw carrier of the present invention.

Fig. 8 is a rear view of the three-dimensional structure of the middle oval screw carrier of the present invention.

Fig. 9 is a schematic perspective view of the oval carrier transport tube according to the present invention.

Fig. 10 is a schematic perspective view of a hexagonal screw carrier according to the present invention.

Fig. 11 is a schematic perspective view of a hexagonal carrier transport pipe according to the present invention.

Fig. 12 is a schematic perspective view of the quadrilateral screw carrier according to the present invention.

Fig. 13 is a schematic perspective view of the quadrilateral carrier conveying pipe according to the present invention.

In the figure: 1. a pedestal; 2. a turntable mechanism; 21. a four-station turntable; 22. a turntable driving device; 23. a carrier tool; 231. a jig body; 232. a blow through hole; 233. the material inlet and outlet are open; 3. a carrier feeding mechanism; 31. a support; 32. a telescopic cylinder; 33. A transverse plate; 34. a guide bar; 35. a guide rod limiting seat; 36. a carrier blowing nozzle; 37. a magnetic base; 38. an open closure plate; 39. A buffer spring; 4. a screw discharging mechanism; 41. a discharge module base; 42. a discharge air tap; 43. a carrier chamber; 44. a T-shaped discharge chute; 45. aligning the mounting plate; 46. a gate; 47. a gate slot; 5. a carrier transport pipe; 6. a screw carrier; 61. a carrier body; 62. a T-shaped groove; 63. a magnet; 64. an air blowing hole; 7. an electromagnetic valve; 8. a high pressure gas source; 9. a vacuum generator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.

Example (b): a multi-station air-blowing type screw carrier feeding and returning circulating mechanism.

Referring to fig. 1 to 13, a multi-station air-blowing type screw carrier feeding and returning circulation mechanism includes:

a pedestal 1;

the rotary table mechanism 2 is arranged on the pedestal 1, the rotary table mechanism 2 comprises a four-station rotary table 21 and a rotary table driving device 22, the four-station rotary table 21 is arranged on the rotary table driving device 22, the four-station rotary table 21 can be driven to rotate orderly by the rotary table driving device 22, four carrier jigs 23 distributed in a circumferential array by taking the center of the rotary table as the center of a circle are arranged on the end edge of the four-station rotary table 21, the four-station rotary table 21 sequentially comprises a feeding station, a material carrying idling station, a discharging station and an empty idling station in a counterclockwise direction, the carrier jigs 23 comprise a jig body 231 fixed on the four-station rotary table 21, an air blowing through hole 232 is formed in the top of the jig body 231, a material inlet and outlet opening 233 is formed in the outer end face side of the jig body 231, the screw carrier 6 can be blown out downwards by the air blowing through hole 232, and the screw can conveniently enter the screw carrier 6 at the feeding station by the material inlet opening 233, during actual work, the empty screw carriers 6 are firstly placed in the four carrier jigs 23 of the four-station turntable 21, when the empty screw carriers 6 rotate to the feeding stations of the four-station turntable 21, screws are blown into the empty screw carriers 6 of the feeding stations, and then the four-station turntable 21 carries the screw carriers 6 loaded with the screws to gradually rotate to the discharging stations;

install carrier feed mechanism 3 in carousel mechanism 2 ejection of compact station one side, carrier feed mechanism 3 includes the support 31 of installing on pedestal 1, install magnetic base fixing device on support 31, magnetic base 37 is installed on magnetic base fixing device, magnetic base fixing device includes the telescopic cylinder 32 of vertical downward installation at the top of support 31, install diaphragm 33 on telescopic shaft of telescopic cylinder 32, the vertical guide arm 34 that sets up downwards is installed to the left and right sides parallel of diaphragm 33, guide arm 34 vertically runs through the guide arm spacing seat 35 of installing on support 31, magnetic base 37 is fixed in guide arm 34 bottom, during operation, can adjust the position of magnetic base 37 through telescopic cylinder 32, carrier blow material air cock 36 is installed on magnetic base 37 and vertical downward just to the ejection of compact station setting in quadruplex position carousel 21, the inboard of support 31 still is provided with the open closed plate 38 that the carrier just set up to tool 23, the rear side of the open closing plate 38 is provided with a buffer spring 39 and an in-place detection sensor, when in actual work, when the four-station turntable 21 carries the screw carrier 6 with screws to gradually rotate to a discharging station, firstly, the screw carrier 6 with screws is suspended at an open top of the carrier conveying pipe 5 right below the discharging station carrier tool 23 of the four-station turntable 21 through magnetic force adsorption between the magnetic seat 37 and the screw carrier 6, and then the carrier blowing air nozzle 36 works to blow the screw carrier 6 suspended at the open top of the carrier conveying pipe 5 into the carrier conveying pipe 5;

the screw carrier 6 comprises a carrier body 61, the transverse section of the carrier body 61 is set to be noncircular, the section of the inner cavity of the pipeline of the carrier conveying pipe 5 is also correspondingly set to be noncircular corresponding to the transverse section of the carrier body 61, a T-shaped discharging groove 62 is formed in the carrier body 61, magnetic substances capable of being adsorbed by the magnetic base 37 in the carrier feeding mechanism 3 are installed at the top of the carrier body 61, and the magnetic substances are used for being adsorbed and suspended by the magnetic base 37. The transverse section of the carrier body 61 is set to be non-circular, so that the carrier body 61 cannot rotate in the conveying pipeline, if the carrier body is designed to be circular, the screw carrier 6 can easily deflect in the transverse direction in the conveying process, and therefore, complex mechanisms for secondary positioning of the carrier are required to be additionally arranged at the screw feeding position and the screw discharging position, the structure is complex and bloated, and handheld operation cannot be carried out. Through having seted up T type groove 62 on the leading flank at carrier body 61, be convenient for load various types of screw, as long as screw head and screw post do not exceed the biggest or minimum limit requirement in T type groove can, compare traditional only can a pipeline match single type screw, its adaptability strengthens greatly.

Referring to fig. 7 to 9, a transverse cross section of the carrier body 61 is formed into an oval shape, a T-shaped groove 62 is formed on a front side surface of the carrier body 61, an air blowing hole 64 communicated with the T-shaped groove 62 is formed on a rear side surface of the carrier body 61, and a magnet 63 is mounted on the top of the carrier body 61. In actual operation, the magnet 63 on the top of the carrier body 61 can be attracted to the magnetic base 37, and the discharge air nozzle 42 can blow out the screw in the T-shaped groove 62 through the air blowing hole 64.

Referring to fig. 7 to 13, the transverse cross section of the carrier body 61 is one of an ellipse, a hexagon and a quadrangle, and the cross section of the inner cavity of the pipeline of the carrier conveying pipe 5 is the same as the transverse cross section of the carrier body, so that the carrier body 61 cannot easily rotate in the carrier conveying pipe 5, and the screw carrier 6 is prevented from deflecting in the transverse direction during the conveying process.

Referring to fig. 1, 5 and 6, a screw discharging mechanism 4, the screw discharging mechanism 4 is connected with a carrier feeding mechanism 3 through a carrier conveying pipe 5, the top opening of the carrier conveying pipe 5 is arranged under a discharging station carrier jig 23 of a four-station turntable 21, a screw carrier 6 can be placed in the carrier jig 23 and the carrier conveying pipe 5, the screw discharging mechanism 4 includes a discharging module seat 41, a carrier cavity 43 is arranged in the discharging module seat 41, the carrier cavity 43 is communicated with the carrier conveying pipe 5, a T-shaped discharging groove 44 communicated with the carrier cavity 43 is arranged on the front side surface of the discharging module seat 41, a discharging air nozzle 42 is arranged on the rear side surface of the discharging module seat 41 and is communicated with the carrier cavity 43, a gate groove 47 is further arranged on the discharging module seat 41, the gate groove 47 is arranged between the carrier cavity 43 and the T-shaped discharging groove 44, a gate 46 is inserted into the gate groove 47, still install the counterpoint mounting panel 45 on the play module seat 41, make things convenient for ejection of compact module seat 41 and chuck mechanism's butt joint installation, carrier blows material nozzle 36 and ejection of compact air cock 42 and links to each other with the high pressurized air source 8 of installing on pedestal 1 through high-pressurepipe respectively, installs solenoid valve 7 on the high-pressurepipe. In actual operation, after the screw carrier 6 suspended at the top opening of the carrier conveying pipe 5 is blown into the carrier cavity 43 by the carrier blowing air nozzle 36 in the carrier feeding mechanism 3, at this time, the gate 46 is opened, the discharge air nozzle 42 operates to discharge the screw in the screw carrier 6 outwards through the T-shaped discharge chute 44, after the screw discharge is completed, the gate 46 is closed, the T-shaped discharge chute 44 is closed, an airtight space is formed at the bottom of the carrier conveying pipe 5, the discharge air nozzle 42 is ventilated, the air flow blows the empty screw carrier 6 back to the magnetic seat 37 of the carrier feeding mechanism 3 for re-adsorption and suspension, the in-place detection sensor detects that the empty screw carrier 6 returns, a signal is given, the four-station turntable 21 rotates again, and the next screw carrier 6 with the screw is moved to the magnetic seat 37 for the next cycle.

This multistation air-blowing formula screw carrier material loading, feed back circulation mechanism simple structure, convenient operation adopts screw carrier 6 to replace traditional screw direct feeding, can adapt the transport of the screw of multiple different models through screw carrier 6, and strong adaptability can carry the screw in pipeline reciprocating stable movement moreover, stops the emergence of phenomenons such as upset, card shell. In actual operation, empty screw carriers 6 are firstly placed in the four carrier jigs 23 of the four-station turntable 21, when the empty screw carriers 6 rotate to the feeding stations of the four-station turntable 21, screws are conveyed to the empty screw carriers 6 of the feeding stations through the previous process, then the four-station turntable 21 carries the screw carriers 6 with the screws to gradually rotate to the discharging stations, firstly, the screw carriers 6 with the screws are suspended at the top openings of the carrier conveying pipes 5 right below the discharging stations of the four-station turntable 21 through the magnetic force adsorption between the magnetic force seats 37 and the screw carriers 6, then, the carrier blowing air nozzles 36 work, the screw carriers 6 suspended at the top openings of the carrier conveying pipes 5 are blown into the carrier conveying pipes 5, finally, the screw carriers are conveyed into the carrier cavities 43 of the discharging module seats 41 through the carrier conveying pipes 5, and the gates 46 are opened at the moment, the discharge air nozzle 42 can discharge the screws in the screw carriers 6 outwards through the T-shaped discharge groove 44 when working, after the screw discharging is completed, the gate 46 is closed, the T-shaped discharge groove 44 is closed, a closed space is formed at the bottom of the carrier conveying pipe 5, the discharge air nozzle 42 is ventilated, the air flow blows the empty screw carriers 6 back to the magnetic seat 37 of the carrier feeding mechanism 3 for re-adsorption and suspension, the in-place detection sensor gives out signals after detecting that the empty screw carriers 6 return, the four-station turntable 21 rotates again, and the next screw carrier 6 with the screws is moved to the position below the magnetic seat 37 for the next circulation. The accuracy and the efficiency of the up-and-down reciprocating circulation of the screw carrier 6 are very high, and the problem that in the prior art, each screw machine can only be customized for a certain specific screw, and the universality is very poor is solved.

This multistation air-blowing formula screw carrier material loading, feed back circulation mechanism can adapt the screw of multiple different models through the structural design to screw carrier 6 and carrier conveyer pipe 5 to carry the screw and stably remove in pipeline, stop the emergence of phenomenons such as taking place the upset, blocking the shell. The transverse section of the carrier body 61 is set to be non-circular, so that the carrier body 61 cannot rotate in the conveying pipeline, if the carrier body is designed to be circular, the screw carrier 6 can easily deflect in the transverse direction in the conveying process, and therefore, complex mechanisms for secondary positioning of the carrier are required to be additionally arranged at the screw feeding position and the screw discharging position, the structure is complex and bloated, and handheld operation cannot be carried out. Through having seted up T type groove 62 on the leading flank at carrier body 61, be convenient for load various types of screw, as long as screw head and screw post do not exceed the biggest or minimum limit requirement in T type groove can, compare traditional only can a pipeline match single type screw, its adaptability strengthens greatly.

The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings, and therefore, all equivalents and modifications that can be accomplished without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims (8)

1. The utility model provides a multistation air-blowing formula screw carrier material loading, feed back circulation mechanism which characterized in that includes:

a pedestal;

the turntable mechanism is arranged on the pedestal and comprises a four-station turntable and a turntable driving device, the four-station turntable is arranged on the turntable driving device, and four carrier jigs which are distributed in a circumferential array by taking the center of the turntable as the circle center are arranged on the end edge of the four-station turntable;

the carrier feeding mechanism is arranged on one side of a discharging station of the turntable mechanism and comprises a support arranged on a pedestal, a magnetic seat fixing device is arranged on the support, a magnetic seat is arranged on the magnetic seat fixing device, a carrier blowing nozzle is arranged on the magnetic seat and vertically and downwardly faces the discharging station in the four-station turntable, an open sealing plate which faces the carrier jig is further arranged on the inner side of the support, and a buffer spring and an in-place detection sensor are arranged on the rear side of the open sealing plate;

screw discharge mechanism, through carrier duct connection between screw discharge mechanism and the carrier feed mechanism, the uncovered setting in top of carrier conveyer pipe is under quadruplex position carousel ejection of compact station carrier tool, and the screw carrier can be placed in carrier tool and carrier conveyer pipe, screw discharge mechanism includes ejection of compact module seat, be provided with the carrier chamber in the ejection of compact module seat, carrier chamber and carrier conveyer pipe intercommunication set up the T type blown down tank that is linked together with the carrier chamber on the leading flank of ejection of compact module seat, ejection of compact air cock install the trailing flank at ejection of compact module seat and with carrier chamber intercommunication, still be provided with the gate groove on the ejection of compact module seat, the gate groove sets up between carrier chamber and T type blown down tank, the gate inserts to the gate inslot.

2. The multi-station air-blowing screw carrier feeding and returning circulation mechanism of claim 1, wherein: the carrier jig comprises a jig body fixed on the four-station turntable, a blowing through hole is formed in the top of the jig body, and a feeding opening and a discharging opening are formed in the outer end face side of the jig body.

3. The multi-station air-blowing screw carrier feeding and returning circulation mechanism of claim 1, wherein: the magnetic base fixing device comprises a telescopic cylinder vertically and downwards installed at the top of the support, a transverse plate is installed on a telescopic shaft of the telescopic cylinder, guide rods vertically and downwards arranged are installed at the left end and the right end of the transverse plate in parallel, the guide rods longitudinally penetrate through guide rod limiting bases installed on the support, and the magnetic base is fixed at the bottom of the guide rods.

4. The multi-station air-blowing screw carrier feeding and returning circulation mechanism of claim 1, wherein: the screw carrier comprises a carrier body, the transverse section of the carrier body is set to be non-circular, the section of the inner cavity of the pipeline of the carrier conveying pipe is correspondingly set to be non-circular corresponding to the transverse section of the carrier body, a T-shaped discharge chute is formed in the carrier body, and magnetic substances capable of being adsorbed by a magnetic base in a carrier feeding mechanism are installed at the top of the carrier body.

5. The multi-station air-blowing screw carrier feeding and returning circulation mechanism of claim 4, wherein: the transverse section of the carrier body is set to be oval, a T-shaped groove is formed in the front side face of the carrier body, a blowing hole communicated with the T-shaped groove is formed in the rear side face of the carrier body, and a magnet is installed at the top of the carrier body.

6. The multi-station air-blowing screw carrier feeding and returning circulation mechanism of claim 4, wherein: the transverse section of the carrier body is set to be one of an ellipse, a hexagon and a quadrangle, and the section of the inner cavity of the pipeline of the carrier conveying pipe is correspondingly set to be a non-circular shape corresponding to the transverse section of the carrier body.

7. The multi-station air-blowing screw carrier feeding and returning circulation mechanism of claim 1, wherein: the carrier material blowing air nozzle and the material discharging air nozzle are respectively connected with a high-pressure air source installed on the pedestal through high-pressure air pipes, and electromagnetic valves are installed on the high-pressure air pipes.

8. The multi-station air-blowing screw carrier feeding and returning circulation mechanism of claim 1, wherein: and an alignment mounting plate is also arranged on the discharging module seat.

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