CN217126251U - Suction-blowing type screw carrier feeding and returning circulation mechanism - Google Patents

Abstract

The utility model provides a inhale and blow formula screw carrier material loading, feed back circulation mechanism, include: a pedestal; the screw feeding mechanism is installed on the pedestal and comprises a mounting seat, a sealing shutter driving cylinder and an air suction and blowing nozzle are installed on the mounting seat, a feeding pipe is installed right below the air suction and blowing nozzle, the top of a carrier conveying pipe is connected with the feeding pipe, a screw feeding hole is formed in the outer wall of the top of the feeding pipe, a sealing shutter is sleeved on the outer wall of the feeding pipe and connected with the sealing shutter driving cylinder, the air suction and blowing nozzle is respectively connected with a vacuum generator and a high-pressure air source through a high-pressure air pipe, and an electromagnetic valve used for air path switching is installed on the high-pressure air pipe; the screw discharging mechanism is connected with the screw feeding mechanism through a carrier conveying pipe, and the screw carrier is placed in the carrier conveying pipe. This circulation mechanism design benefit 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, strong adaptability.

Description

Suction-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 inhale and blow formula screw carrier material loading, feed back circulation mechanism.

Background

The screw is widely applied, the screw locking is a common process, the locking is mostly manually operated at present, and a large amount of manpower resources are consumed. The automatic screw machine of present is about to fix screw locking pair module on XYZ module or four-axis arm, can lock according to setting for the procedure automatic locking pair screw, but all will get back to the screw feeder and get the material after every locking pair screw, and a large amount of time consumption is getting the material action on, seriously influences efficiency.

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 has obvious limitation:

(1) 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 must be kept to be in an 'above-head and below-foot' mode, namely, a cap head of the screw is below an end of the screw, and therefore the screw 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

(2) The inner diameter of the conveying pipeline and the inner diameter of a screw through hole above the chuck must be matched with screws, the excessively large screws can overturn, the excessively small screws cannot pass through, practically, each screw machine is customized for a specific screw, 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.

SUMMERY OF THE UTILITY MODEL

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

In order to realize the technical scheme, the utility model provides an inhale formula of blowing screw carrier material loading, feed back circulation mechanism, include: a pedestal; the screw feeding mechanism is installed on the pedestal and comprises a mounting seat fixed on the pedestal, a sealing shutter driving cylinder vertically arranged downwards is installed on the mounting seat, an air suction and blowing nozzle vertically arranged downwards is installed on one side, located on the sealing shutter driving cylinder, of the mounting seat, the feeding pipe is installed under the air suction and blowing nozzle, a screw feeding hole is formed in the side wall of the feeding pipe, the top of the carrier conveying pipe is connected with the bottom of the feeding pipe, a cylindrical sealing shutter is sleeved on the outer wall of the feeding pipe, the sealing shutter is connected with an expansion shaft of the sealing shutter driving cylinder through a shutter connecting plate, the screw feeding hole in the feeding pipe is closed when the sealing shutter driving cylinder drives the sealing shutter to move upwards, the screw feeding hole in the feeding pipe is opened when the sealing shutter driving cylinder drives the sealing shutter to move downwards, and the air suction and blowing nozzle is respectively connected with a vacuum generator and a high-pressure air source which are installed on the pedestal through a high-pressure air pipe, the high-pressure air pipe is provided with an electromagnetic valve for switching the air path; and the screw discharging mechanism is connected with the screw feeding mechanism through a carrier conveying pipe, and the screw carrier is placed in the carrier conveying pipe.

In the technical scheme, during actual work, firstly, a sealed shutter driving cylinder drives a sealed shutter to move upwards to close a screw feeding hole on a feeding pipe, then an electromagnetic valve arranged on a high-pressure air pipe switches an air passage to be connected with a vacuum generator, an air suction and blowing nozzle sucks air into a carrier conveying pipe, a screw carrier is sucked and hovered by the air suction and blowing nozzle under the action of the internal and external air pressure difference, then the sealed shutter driving cylinder drives the sealed shutter to move downwards to open the screw feeding hole on the feeding pipe, after a screw is blown into the screw carrier from the outside, the sealed shutter driving cylinder drives the sealed shutter to move upwards again to close the screw feeding hole on the feeding pipe, then the electromagnetic valve switches the air passage, the air suction and blowing nozzle is connected with a high-pressure air source and blows air into the carrier conveying pipe, air flow blows the screw carrier carrying the screw to a screw discharging mechanism, and after the screw in the screw carrier is conveyed into a chuck through the screw discharging mechanism, the solenoid valve switches the gas circuit again to be connected with vacuum generator, inhales in the gas suction and blowing nozzle to the carrier conveying pipe, and the screw carrier is inhaled the gas suction and blowing nozzle and is hovered under the effect of inside and outside air pressure difference, then the feeding of the next screw can be repeated.

Preferably, the screw discharging mechanism comprises a discharging module seat, a carrier cavity is formed in the discharging module seat, a conveying pipe connecting cylinder communicated with the carrier cavity is arranged at the top of the discharging module seat, the bottom of the carrier conveying pipe is inserted into the conveying pipe connecting cylinder, a T-shaped discharging groove communicated with the carrier cavity is formed in the front side face of the discharging module seat, and a blowing nozzle is installed on the rear side face of the discharging module seat and communicated with the carrier cavity. During the actual work, the screw passes through the screw carrier and is carried discharge mechanism's carrier intracavity by the carrier conveyer pipe, then through the blowing air cock of installing at the discharge mechanism trailing flank with the screw in the screw carrier from the outside ejection of compact of T type blown down tank of discharge mechanism leading flank, owing to all adopt the structural design in T type groove, the screw of multiple model of adaptation, as long as the screw head of this screw is no longer than the biggest or minimum limit diameter requirement in T type groove can, compare the screw that traditional pneumatic ejection of compact module can only match single model, its adaptability strengthens greatly.

Preferably, still install the counterpoint mounting panel on the ejection of compact module seat, the ejection of compact module seat is fixed with the butt joint of chuck fixing base through the counterpoint mounting panel, makes things convenient for ejection of compact module seat and chuck mechanism's butt joint installation.

Preferably, the screw carrier comprises a carrier body, the transverse section of the carrier body is non-circumferential, and the carrier body is provided with a T-shaped discharge chute. The transverse section of the carrier body is set to be non-circular, so that the carrier body cannot easily rotate in the conveying pipeline, if the carrier body is designed to be circular symmetrical, the screw carrier 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 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, and a blowing hole communicated with the T-shaped groove is formed in the rear side face of the carrier body. The oval design and processing are easy, and the deflection of the oval section in the transverse direction in the conveying process can be effectively avoided. The blowing holes communicated with the T-shaped groove are formed in the rear side face of the carrier body, so that air can be blown through the blowing holes during actual discharging, and screws are discharged from the front side face of the carrier body in the T-shaped groove.

Preferably, the transverse section of the carrier body is one of an ellipse, a hexagon and a quadrangle.

Preferably, the cross section of the inner cavity of the carrier conveying pipe is one of an ellipse, a hexagon and a quadrilateral, and the cross section of the inner cavity of the carrier conveying pipe is correspondingly arranged to be a non-circular shape corresponding to the transverse cross section of the carrier body.

The utility model provides a pair of inhale and blow formula screw carrier material loading, feed back circulation mechanism's beneficial effect lies in:

(1) this inhale and blow 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. When in actual work, firstly, the sealed shutter is driven by the sealed shutter driving cylinder to move upwards, a screw feeding hole on the feeding pipe is closed, then an electromagnetic valve arranged on the high-pressure air pipe switches an air passage to be connected with a vacuum generator, the air suction and blowing nozzle sucks air into the carrier conveying pipe, the screw carrier is sucked and hovered by the air suction and blowing nozzle under the action of the internal and external air pressure difference, then the sealed shutter driving cylinder drives the sealed shutter to move downwards, the screw feeding hole on the feeding pipe is opened, after a screw is blown into the screw carrier from the outside, the sealed shutter driving cylinder drives the sealed shutter to move upwards again, the screw feeding hole on the feeding pipe is closed, then the electromagnetic valve switches the air passage, the air suction and blowing nozzle is connected with a high-pressure air source and blows air into the carrier conveying pipe, the screw carrier carrying the screw is blown to the screw discharging mechanism by the air flow, and the screw in the screw carrier is conveyed into the chuck by the screw discharging mechanism, the solenoid valve switches the gas circuit again and is connected with vacuum generator, inhales in the gas suction and blowing mouth to the carrier conveyer pipe, and the screw carrier is inhaled the gas suction and blowing mouth and is hovered under the effect of inside and outside air pressure differential, then repeat the feeding of next screw can, the screw carrier is reciprocal from top to bottom the precision and the efficiency of circulation very high, solved prior art, every screw machine can only be tailor-made for certain specific screw, the very poor problem of commonality.

(2) This inhale and blow formula screw carrier material loading, feed back circulation mechanism through the structural design to screw carrier and carrier conveyer pipe, can the screw of multiple different models 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 symmetrical, the carrier 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 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 screw feeding mechanism and the screw discharging mechanism of the present invention.

Fig. 3 is a schematic perspective view of the sealing shutter of the middle screw feeding mechanism according to the present invention.

Fig. 4 is a schematic perspective view of the sealing shutter of the middle screw feeding mechanism according to the present invention when opened.

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 exploded view of the assembly structure of the middle discharging module seat and the screw carrier of the present invention.

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

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

Fig. 9 is a perspective view of the carrier transport pipe according to the present invention.

In the figure: 1. a pedestal; 2. a screw feeding mechanism; 21. a mounting seat; 22. a sealed shutter driving cylinder; 23. a suction and blowing nozzle; 24. sealing the shutter; 25. a shutter connecting plate; 26. pipe sleeve; 27. feeding pipes; 28. a screw feed hole; 3. a high pressure air duct; 4. a screw discharging mechanism; 41. a discharge module base; 42. a discharge air tap; 43. a delivery tube connecting cylinder; 44. a T-shaped discharge chute; 45. aligning the mounting plate; 46. a carrier chamber; 5. a carrier transport pipe; 6. a screw carrier; 61. a carrier body; 62. a T-shaped groove; 63. 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 feeding and returning circulation mechanism for a suction-blowing type screw carrier.

Referring to fig. 1 to 9, a suction-blowing type screw carrier feeding and returning circulation mechanism includes:

a pedestal 1;

the screw feeding mechanism 2 is installed on the pedestal 1, the screw feeding mechanism 2 comprises an installation seat 21 fixed on the pedestal 1, a sealing shutter driving cylinder 22 arranged vertically downwards is installed on the installation seat 21, a suction and blowing nozzle 23 arranged vertically downwards is installed on one side of the sealing shutter driving cylinder 21 on the installation seat 21, a feeding pipe 27 is installed right below the suction and blowing nozzle 23, a screw feeding hole 28 is formed in the side wall of the feeding pipe 27, the top of a carrier conveying pipe 5 is connected with the bottom of the feeding pipe 27 through a pipe sleeve 26, a cylindrical sealing shutter 24 is sleeved on the outer wall of the feeding pipe 27, the sealing shutter 24 is connected with an expansion shaft of the sealing shutter driving cylinder 22 through a shutter connecting plate 25, the screw feeding hole 28 on the feeding pipe 27 is closed when the sealing shutter driving cylinder 22 drives the sealing shutter 24 to move upwards, and the screw feeding hole 28 on the feeding pipe 27 is opened when the sealing shutter driving cylinder 22 drives the sealing shutter 24 to move downwards, when the screw feed hole 28 is opened, screws can be fed from the screw feed hole 28 into the screw carriers 6 suspended in the feeding tube 27.

Inhale and blow mouth 23 and link to each other with vacuum generator 9 and high-pressure wind regime 8 installed on pedestal 1 respectively through high-pressure air duct 3, install the solenoid valve 7 that is used for the wind path to switch on the high-pressure air duct 3, in the time of the real work, can switch the gas circuit of inhaling gas mouth 23 and vacuum generator 9 and high-pressure wind regime 8 through solenoid valve 7, when high-pressure air duct 3 is connected with vacuum generator 9, inhale gas mouth 23 and breathe in to carrier conveyer pipe 5, can make screw carrier 6 in the carrier conveyer pipe 5 remove to screw feed port 51 department and hover, make things convenient for the screw to get into in the screw carrier 6. When high-pressure air pipe 3 is connected with high-pressure air source 8, inhale the mouth of blowing 23 and blow to carrier conveyer pipe 5 in, can be so that screw carrier 6 in the carrier conveyer pipe 5 fast downstream to screw discharge mechanism 4 in, realize the switching of gas circuit through solenoid valve 7, and then realize the upper and lower reciprocating cycle of screw carrier 6 in carrier conveyer pipe 5, simple structure not only, but also can realize that screw carrier 6 is quick in carrier conveyer pipe 5, accurate removal.

Screw discharge mechanism 4, be connected through carrier conveyer pipe 5 between screw discharge mechanism 4 and the screw feed mechanism 2, screw carrier 6 is placed in carrier conveyer pipe 5, screw discharge mechanism 4 is including going out module seat 41, it has seted up carrier chamber 46 in the module seat 41 to go out, and the top of going out module seat 41 is provided with the conveyer pipe connecting cylinder 43 with carrier chamber 46 intercommunication, and the bottom of carrier conveyer pipe 5 inserts extremely in the conveyer pipe connecting cylinder 43, set up the T type blown down tank 44 that is linked together with carrier chamber 46 on the leading flank of ejection of compact module seat 41, blow material air cock 42 and install the trailing flank at play module seat 41 and communicate with carrier chamber 46. In the actual work process, the screw passes through screw carrier 6 and is carried the carrier chamber 46 of ejection of compact module seat 41 by carrier conveyer pipe 5 in, then through installing the outside ejection of compact of T type blown tank 44 of the screw follow ejection of compact module seat 41 leading flank in the screw carrier 6 of blowing air cock 42 at ejection of compact module seat 41 trailing flank, owing to all adopt the structural design in T type groove, the screw of multiple model can adapt, as long as the screw head of this screw is no longer than the biggest or minimum limiting diameter requirement in T type groove can, compare the screw that traditional pneumatic ejection of compact module can only match single model, its adaptability strengthens greatly. Still install the counterpoint mounting panel 45 on the ejection of compact module seat 41, ejection of compact module seat 41 is fixed through counterpoint mounting panel 45 and chuck fixing base butt joint, makes things convenient for ejection of compact module seat 41 and chuck mechanism's butt joint installation.

The screw carrier 6 comprises a carrier body 61, the transverse section of the carrier body 61 is set to be oval in non-circumferential shape, the section of the inner cavity of the pipeline of the carrier conveying pipe 5 is also correspondingly set to be oval, a T-shaped groove 62 is formed in the front side surface of the carrier body 61, and a blowing hole 63 communicated with the T-shaped groove 62 is formed in the rear side surface of the carrier body 61. The oval design and processing are easy, and the deflection of the oval section in the transverse direction in the conveying process can be effectively avoided. The rear side surface of the carrier body 61 is provided with the air blowing holes 63 communicated with the T-shaped groove 62, so that air can be blown through the air blowing holes 63 during actual discharging, and screws can be discharged from the front side surface of the carrier body 61 in the T-shaped groove 62. The transverse section of the carrier body 61 is set to be non-circular, so that the carrier body 61 cannot easily rotate in the non-circular carrier conveying pipe 5, if the carrier body is designed to be circular symmetrical, 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 swollen, and the 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 62 can, compare traditional only can a pipeline match a single type screw, its adaptability strengthens greatly.

In this embodiment, the transverse cross section of the carrier body 61 may also be set to be a hexagon or a quadrangle in a non-circular shape, and the cross section of the inner cavity of the pipeline of the carrier conveying pipe 5 is also set to be a hexagon or a quadrangle, so as to ensure that the carrier body 61 does not deflect due to rotation of the T-shaped groove 62 during the blowing process of the high-pressure air, and prevent the screw from entering the T-shaped groove 62 or being unable to discharge from the T-shaped groove 62.

This inhale and blow formula screw carrier material loading, feed back circulation mechanism design benefit, 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, firstly, the sealed shutter driving cylinder 22 drives the sealed shutter 24 to move upwards, the screw feeding hole 28 on the feeding pipe 27 is closed, then the electromagnetic valve 7 arranged on the high-pressure air pipe 3 switches the air path to be connected with the vacuum generator 9, the air suction and blowing nozzle 23 sucks air into the carrier conveying pipe 5, the screw carrier 5 is sucked and hovered by the air suction and blowing nozzle 23 under the action of the difference of the internal and external air pressure, then the sealed shutter driving cylinder 22 drives the sealed shutter 24 to move downwards, the screw feeding hole 28 on the feeding pipe 27 is opened, after a screw is blown into the T-shaped groove 62 of the screw carrier 6 from the outside, the sealed shutter driving cylinder 22 drives the sealed shutter 24 to move upwards again, the screw feeding hole 28 on the feeding pipe 27 is closed, then the electromagnetic valve 7 switches the air path, the air suction and blowing nozzle 23 is connected with the high-pressure air source 8 and blows air into the carrier conveying pipe 5, the air flow blows the screw carrier 6 carrying the screw into the carrier cavity 46 of the screw discharging mechanism 4, then, screws in the screw carrier 6 are conveyed into the chuck from a T-shaped discharging groove 44 in the front side of a discharging module seat 41 through a blowing nozzle 42 in the screw discharging mechanism 4, then an electromagnetic valve 7 switches the gas path to be connected with a vacuum generator 9 again, a gas suction nozzle 23 sucks gas into the carrier conveying pipe 5, the screw carrier 6 is sucked and suspended by the gas suction nozzle 23 under the action of the difference of the internal and external gas pressures, then the feeding of the next screw is repeated, and 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 poor is solved.

This inhale and blow formula screw carrier material loading, feed back circulation mechanism through the structural design to screw carrier and carrier conveyer pipe, can the screw of multiple different models 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 61 is set to be non-circular, and non-circular conveying pipelines of the same type are correspondingly selected, so that the carrier body 61 cannot easily rotate in the conveying pipelines, if the carrier body is designed to be circular symmetrical, the screw carrier 6 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 bulky, 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 (7)

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

a pedestal;

the screw feeding mechanism is installed on the pedestal and comprises a mounting seat fixed on the pedestal, a sealing shutter driving cylinder vertically arranged downwards is installed on the mounting seat, an air suction and blowing nozzle vertically arranged downwards is installed on one side, located on the sealing shutter driving cylinder, of the mounting seat, the feeding pipe is installed under the air suction and blowing nozzle, a screw feeding hole is formed in the side wall of the feeding pipe, the top of the carrier conveying pipe is connected with the bottom of the feeding pipe, a cylindrical sealing shutter is sleeved on the outer wall of the feeding pipe, the sealing shutter is connected with an expansion shaft of the sealing shutter driving cylinder through a shutter connecting plate, the screw feeding hole in the feeding pipe is closed when the sealing shutter driving cylinder drives the sealing shutter to move upwards, the screw feeding hole in the feeding pipe is opened when the sealing shutter driving cylinder drives the sealing shutter to move downwards, and the air suction and blowing nozzle is respectively connected with a vacuum generator and a high-pressure air source which are installed on the pedestal through a high-pressure air pipe, the high-pressure air pipe is provided with an electromagnetic valve for switching the air path;

and the screw discharging mechanism is connected with the screw feeding mechanism through a carrier conveying pipe, and the screw carrier is placed in the carrier conveying pipe.

2. The suction-blowing type screw carrier feeding and returning circulation mechanism of claim 1, wherein: screw discharge mechanism includes ejection of compact module seat, it has the carrier chamber to open in the ejection of compact module seat, and the top of ejection of compact module seat is provided with the conveyer pipe connecting cylinder with carrier chamber intercommunication, the bottom of carrier conveyer pipe insert extremely in the conveyer pipe connecting cylinder, 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, blow the material nozzle and install the trailing flank at ejection of compact module seat and communicate with the carrier chamber.

3. The suction-blowing type screw carrier feeding and returning circulation mechanism of claim 2, wherein: and an alignment mounting plate is also arranged on the discharging module seat.

4. The suction-blowing type 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 arranged to be non-circular, and a T-shaped discharge chute is formed in the carrier body.

5. The suction-blowing type screw carrier feeding and returning circulation mechanism of claim 4, wherein: the transverse section of the carrier body is oval, a T-shaped groove is formed in the front side face of the carrier body, and a blowing hole communicated with the T-shaped groove is formed in the rear side face of the carrier body.

6. The suction-blowing type 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.

7. The suction-blowing type screw carrier feeding and returning circulation mechanism of claim 5, wherein: the cross section of the inner cavity of the carrier conveying pipe is set to be one of an ellipse, a hexagon and a quadrangle, and the cross section of the inner cavity of the carrier conveying pipe is also correspondingly set to be a non-circular shape corresponding to the transverse cross section of the carrier body.

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