CN210365742U

CN210365742U - Screw feeding device

Info

Publication number: CN210365742U
Application number: CN201920937699.2U
Authority: CN
Inventors: 阎庆
Original assignee: Shenzhen Liqi Precision Technology Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-04-21
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a screw feedway, include: the machine body is provided with a material containing cavity; the material distribution assembly comprises a driving part arranged on the machine body and a material distribution disc accommodated in the material accommodating cavity, an output shaft of the driving part penetrates through the cavity wall of the material accommodating cavity to be connected with the material distribution disc, and the material distribution disc is provided with a plurality of through holes for accommodating screws; the driving piece drives the material distribution disc to rotate so that each screw is accommodated in one through hole. The utility model discloses aim at solving the card material problem of screw feed in-process, provide one kind and do not block the material, conveniently get the material, and the screw feedway that the feed efficiency is high.

Description

Screw feeding device

Technical Field

The utility model relates to an automatic change feeding equipment technical field, in particular to screw feedway.

Background

The existing feeding device generally adopts a vibration disc to realize feeding, and due to the small size of a screw, the material clamping is generally serious in the process of feeding the screw by utilizing the vibration disc in a vibration mode, and the problems of extrusion, superposition and the like easily occur to the screw in the vibration feeding process, so that the efficiency of the feeding device is poor.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a screw feedway aims at solving the card material problem of screw feed in-process, provides one kind and does not block the material, conveniently gets the material, and the screw feedway that the feed efficiency is high.

In order to achieve the above object, the utility model provides a screw feedway includes:

the machine body is provided with a material containing cavity;

the material distribution assembly comprises a driving part arranged on the machine body and a material distribution disc accommodated in the material accommodating cavity, an output shaft of the driving part penetrates through the cavity wall of the material accommodating cavity to be connected with the material distribution disc, and the material distribution disc is provided with a plurality of through holes for accommodating screws;

the driving piece drives the material distribution disc to rotate so that each screw is accommodated in one through hole.

Furthermore, the distributing disc comprises a base disc connected to the wall of the material containing cavity and a rotary disc movably connected with the base disc, the rotary disc is provided with a plurality of through holes arranged at intervals, an output shaft of the driving piece penetrates through the wall of the material containing cavity and the base disc and is connected with the rotary disc, and the driving piece drives the rotary disc to rotate relative to the base disc.

Furthermore, a cavity communicated with the through holes is formed between the base plate and the turntable, the base plate is provided with an air suction hole communicated with the cavity, and the cavity wall of the material containing cavity is provided with an air suction opening corresponding to the air suction hole;

the screw feeding device further comprises a vacuum generator, and the vacuum generator is communicated with the cavity through the air suction port and the air suction hole.

Furthermore, a mounting groove is concavely arranged on the wall of the material containing cavity, the chassis is arranged in the mounting groove, the air pumping hole is formed in the bottom wall of the mounting groove, an output shaft of the driving piece penetrates through the bottom wall of the mounting groove and the chassis to be connected with the rotary disc, and the driving piece drives the rotary disc to rotate along the surface of the chassis.

Furthermore, the screw feeding device further comprises an electromagnetic valve arranged on the machine body, and the electromagnetic valve is electrically connected with the driving piece and the vacuum generator.

Furthermore, the driving part comprises a driving motor arranged on the machine body, two driving wheels and a transmission shaft, one driving wheel is connected to an output shaft of the driving motor, the other driving wheel is connected to one end of the transmission shaft, the other end of the transmission shaft rotatably penetrates through the cavity wall of the material containing cavity to be connected with the material distributing disc, and the two driving wheels are in transmission connection through a transmission belt.

Further, the body includes:

the box body is provided with an installation cavity and an opening, and the driving piece is arranged in the installation cavity; and

the material distributing box is arranged in the box body and corresponds to the opening, the material distributing box is provided with a material containing cavity communicated with the opening, and an output shaft of the driving piece penetrates through the material distributing box and is connected with the material distributing plate.

Further, the bin includes:

the bottom plate is accommodated in the mounting cavity and connected with the bottom wall of the mounting cavity, the bottom plate is obliquely arranged, and an output shaft of the driving piece penetrates through the bottom plate and is connected with the material distribution disc;

the side plate is accommodated in the mounting cavity and connected with the bottom plate, and the bottom plate and the side plate are enclosed to form the material containing cavity communicated with the opening.

Further, an included angle between the bottom plate and the bottom wall of the mounting cavity is defined as theta, and theta is larger than 90 degrees and smaller than 180 degrees.

Further, the screw feeding device further comprises a material blocking part arranged on the wall of the material containing cavity, and the material blocking part is adjacent to the material distribution disc.

The utility model discloses technical scheme's screw feedway is through setting up flourishing material chamber on the organism, utilize flourishing material chamber to realize holding and storing the screw, through setting up the branch charging tray in flourishing material intracavity, and set up a plurality of through-holes at the branch charging tray, locate the organism with the driving piece, make the output shaft of driving piece run through the chamber wall that flourishing material chamber and branch charging tray are connected, utilize driving piece drive branch charging tray to rotate, thereby make each screw hold in a through-hole, effectively realize the separation feed of screw, rotate the in-process at driving piece drive branch charging tray and effectively realize the transport of screw, each screw holds in a through-hole simultaneously, the card material of screw has effectively been avoided, and conveniently get the material, thereby feed efficiency has been improved greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the screw feeding device of the present invention;

FIG. 2 is a schematic cross-sectional view of an embodiment of the screw feeding device of the present invention;

FIG. 3 is a schematic view of a partial structure of an embodiment of the screw feeding device of the present invention;

fig. 4 is a partial schematic structural view of another view angle of an embodiment of the screw feeding device of the present invention;

fig. 5 is a schematic structural view of the turntable and the transmission shaft according to an embodiment of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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. 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.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied. In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a screw feedway 100.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, in the embodiment of the present invention, the screw feeding device 100 includes a machine body 1 and a material distributing assembly 2, wherein the machine body 1 is provided with a material containing cavity 12 a; the material distribution assembly 2 comprises a driving part 21 arranged on the machine body 1 and a material distribution disc 22 accommodated in the material accommodating cavity 12a, an output shaft of the driving part 21 penetrates through the cavity wall of the material accommodating cavity 12a to be connected with the material distribution disc 22, and the material distribution disc 22 is provided with a plurality of through holes 2221 for accommodating screws; the driving member 21 drives the distributing tray 22 to rotate, so that each screw is received in one of the through holes 2221.

In the present embodiment, the machine body 1 plays a role of supporting, mounting and fixing. The structure of the machine body 1 may be a frame, a mounting seat, a support plate, a mounting table, or the like, and is not limited as long as the machine body 1 can be mounted and fixed. By arranging the material containing cavity 12a on the machine body 1, the screws are contained and stored by the material containing cavity 12 a. It can be understood that the material containing cavity 12a may be a cavity disposed inside the machine body 1, or may be a groove structure disposed on the surface of the machine body 1, as long as it can contain and store screws, and is not limited herein.

In this embodiment, the material distribution assembly 2 includes a driving member 21 and a material distribution disc 22, the material distribution disc 22 is disposed in the material containing cavity 12a, so that the material distribution disc 22 can be conveniently used for separating, conveying and feeding the screws in the material containing cavity 12a, the driving member 21 is disposed on the machine body 1, and the output shaft of the driving member 21 penetrates through the cavity wall of the material containing cavity 12a to be connected with the material distribution disc 22, so that on one hand, the driving member 21 is used for driving the material distribution disc 22 to rotate, and the through holes 2221 of the material distribution disc 22 are used for separating and conveying the screws in the material containing cavity 12 a; on the other hand, the driving member 21 is arranged outside the material containing cavity 12a, so that the screw can be effectively prevented from being damaged or influenced in the working process of the driving member 21.

It is understood that the distribution tray 22 has a plate-like or disc-like structure, and the distribution tray 22 may have a circular, square or other shape. The shape of the material distribution disc 22 is preferably circular, the circular material distribution disc 22 is convenient to process and produce, the resistance of the material distribution disc 22 in the rotating process is reduced, and the damage to screws in the rotating process of the material distribution disc 22 is reduced.

In this embodiment, in order to continuously perform the separation and the transportation, the distribution tray 22 is provided with a plurality of through holes 2221 arranged at intervals on the periphery thereof. It can be understood that the aperture of the through hole 2221 is equivalent to the diameter of the screw, that is, the stud of the screw can be accommodated in the through hole 2221, and the nut of the screw is limited by the opening of the through hole 2221 (that is, the periphery of the distributing tray 22), so that the screw can be conveniently separated and conveyed, and the material can be conveniently taken.

The utility model discloses a screw feedway 100 is through setting up flourishing material chamber 12a on organism 1, utilize flourishing material chamber 12a to realize holding and storing the screw, through set up branch charging tray 22 in flourishing material chamber 12a, and set up a plurality of through-holes 2221 at branch charging tray 22, organism 1 is located to driving piece 21, make the output shaft of driving piece 21 run through the chamber wall that contains material chamber 12a and be connected with branch charging tray 22, utilize driving piece 21 drive branch charging tray 22 to rotate, thereby make each screw hold in a through-hole 2221, effectively realize the separation feed of screw, drive branch charging tray 22 at driving piece 21 and rotate the transport that the in-process effectively realized the screw, each screw holds in a through-hole 2221 simultaneously, the card material of screw has effectively been avoided, and conveniently get the material, thereby the feed efficiency has been improved greatly.

Further, as shown in fig. 2, 3, 4 and 5, in the present embodiment, the dispensing disc 22 includes a bottom plate 221 connected to the cavity wall of the material containing cavity 12a and a rotating disc 222 movably connected to the bottom plate 221, the rotating disc 222 is provided with a plurality of through holes 2221 arranged at intervals, the output shaft of the driving member 21 penetrates through the cavity wall of the material containing cavity 12a and the bottom plate 221 and is connected to the rotating disc 222, and the driving member 21 drives the rotating disc 222 to rotate relative to the bottom plate 221.

In this embodiment, the bottom plate 221 is attached to the cavity wall of the material containing cavity 12a, the turntable 222 is disposed on a side of the bottom plate 221 opposite to the cavity wall of the material containing cavity 12a, and the bottom plate 221 and the turntable 222 move relatively, that is, the driving member 21 drives the turntable 222 to rotate relative to the bottom plate 221. It can be understood that the shape and contour of the bottom plate 221 and the rotary plate 222 are equivalent, and the bottom plate 221 is arranged to be beneficial to avoiding the rotary plate 222 from causing abrasion to the wall of the material containing cavity 12a during the rotation process.

Optionally, the periphery of the rotating disc 222 is provided with 10 uniformly distributed through holes 2221, and the diameter of the through holes 2221 is slightly larger than the threaded portion of the screw and smaller than the nut of the screw.

Further, as shown in fig. 2, in the present embodiment, a cavity 22a communicated with the plurality of through holes 2221 is formed between the chassis 221 and the turntable 222, the chassis 221 is provided with an air extracting hole 2211 communicated with the cavity 22a, and the cavity wall of the material containing cavity 12a is provided with an air extracting opening 1211 corresponding to the air extracting hole 2211; the screw supplying device 100 further includes a vacuum generator 3, and the vacuum generator 3 communicates with the cavity 22a through the suction opening 1211 and the suction hole 2211.

In this embodiment, a sealed cavity 22a is defined between the base 221 and the turntable 222, the plurality of through holes 2221 on the turntable 222 are communicated with the cavity 22a, the suction hole 2211 is disposed on the base 221, the suction hole 1211 is disposed on the wall of the material containing cavity 12a, the vacuum connector 31 is mounted at the suction hole 1211, the vacuum generator 3 is communicated with the vacuum connector 31 through a pipeline, so that the vacuum generator 3 is communicated with the cavity 22a through the suction hole 1211 and the suction hole 2211, and the through holes 2221 of the turntable 222 form a suction cup structure, and when the vacuum generator 3 works, the screws in the material containing cavity 12a are sucked into the through holes 2221 through the suction hole 1211, the suction hole 2211, the cavity 22a and the through holes 2221, so as to achieve separation.

In this embodiment, when the vacuum generator 3 is in operation, the through hole 2221 is communicated with the vacuum generator 3 through the cavity 22a, the air suction hole 2211 and the air suction port 1211, and the screw is sucked into the through hole 2221 by the vacuum force, at this time, the screw shaft of the screw enters the through hole 2221, and the screw cap seals the opening of the through hole 2221 outward. It is understood that the vacuum generator 3 may be disposed in the body 1, and the vacuum generator 3 is in communication with the suction port 1211 through a pipe, which is not limited herein.

It can be understood that a groove is formed in one side of the bottom plate 221, which is back to the wall of the material containing cavity 12a, a groove structure is formed in one side of the rotary plate 222, which faces the bottom plate 221, which corresponds to the groove, the through hole 2221 is formed in the bottom wall of the groove structure, and when the rotary plate 222 abuts against the bottom plate 221, the groove of the bottom plate 221 and the groove structure on the rotary plate 222 enclose the cavity 22 a.

Alternatively, the grooves on the bottom plate 221 are arranged annularly or semi-annularly, and correspondingly, the groove structures on the rotating disc 222 are arranged annularly or semi-annularly. So configured, it is possible to facilitate protection of the vacuum generator 3 while ensuring the sealing property of the cavity 22a, facilitating the screws to be sucked into the through holes 2221.

Further, as shown in fig. 2, in the present embodiment, a mounting groove 1212 is concavely disposed on the cavity wall of the material containing cavity 12a, the bottom plate 221 is mounted in the mounting groove 1212, the air exhaust opening 1211 is opened on the bottom wall of the mounting groove 1212, the output shaft of the driving member 21 penetrates through the bottom wall of the mounting groove 1212 and the bottom plate 221 to be connected with the turntable 222, and the driving member 21 drives the turntable 222 to rotate along the surface of the bottom plate 221.

It can be understood that the installation groove 1212 is arranged on the wall of the material containing cavity 12a, so that the limited installation of the bottom plate 221 is facilitated. Meanwhile, the chassis 221 of the distributing tray 22 can be ensured to be accommodated and limited in the mounting groove 1212, so that the output shaft of the driving member 21 is prevented from being exposed in the material accommodating cavity 12a when being connected with the rotating disc 222, and the driving member 21 is prevented from being damaged or influencing screws in the material accommodating cavity 12a in the rotating process.

Further, as shown in fig. 3, in the present embodiment, the screw feeding device 100 further includes an electromagnetic valve 4 disposed on the machine body 1, and the electromagnetic valve 4 is electrically connected to the driving member 21 and the vacuum generator 3. It can be understood that the solenoid valve 4 is provided to facilitate the control of the operation of the vacuum generator 3 and the control of the driving member 21, so that the driving member 21 drives the turntable 222 to rotate for intermittent rotation.

In this embodiment, when the turntable 222 separates and conveys the screws from the bottom of the material containing cavity 12a to the upper end, in order to facilitate the worker or the robot to take out the screws from the through holes 2221, at this time, the electromagnetic valve 4 controls the vacuum generator 3 to stop working, i.e., to stop absorbing, so that labor is saved when the worker or the robot takes out the screws from the through holes 2221. Meanwhile, the electromagnetic valve 4 controls the driving member 21 to stop working, so that on one hand, the screw can be taken out from the through hole 2221 by a cooperating worker or a manipulator, and on the other hand, the safety of the worker can be protected.

Further, as shown in fig. 2, fig. 3, fig. 4 and fig. 5, in the present embodiment, the driving member 21 includes a driving motor 211, two driving wheels 212 and a transmission shaft 213, which are disposed on the machine body 1, one driving wheel 212 is connected to an output shaft of the driving motor 211, the other driving wheel 212 is connected to one end of the transmission shaft 213, the other end of the transmission shaft 213 is rotatably connected to the material distribution tray 22 through the cavity wall of the material containing cavity 12a, and the two driving wheels 212 are in transmission connection through a transmission belt.

In this embodiment, the driving motor 211 and the transmission shaft 213 are in transmission connection through the two transmission wheels 212, which is beneficial to firmly installing the driving motor 211 on one hand, and on the other hand, prevents the vibration generated when the driving motor 211 works from being directly transmitted to the turntable 222, thereby affecting the adsorption of the through holes 2221 to the screws.

Further, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, in the present embodiment, the machine body 1 includes a box body 11 and a material distribution box 12, wherein the box body 11 is formed with a mounting cavity 111 and an opening 112, and the driving member 21 is disposed in the mounting cavity 111; the material distributing box 12 is arranged in the box body 11 and is arranged corresponding to the opening 112, the material containing cavity 12a communicated with the opening 112 is arranged on the material distributing box 12, and the output shaft of the driving piece 21 penetrates through the material distributing box 12 and is connected with the material distributing plate 22.

It can be understood that the box 11 includes a base and a cover, the cover covers the base and encloses with the base to form an installation cavity 111, and the cover is opened with an opening 112. The base of the box body 11 is used for installing and fixing the distributing box 12, the driving piece 21, the electromagnetic valve 4 and other structures, and the cover body covers the base and is used for protecting the distributing box 12, the driving piece 21 and the electromagnetic valve 4 from being exposed outside.

In this embodiment, the distribution box 12 is disposed in the mounting cavity 111, the distribution box 12 is formed with a containing cavity 12a, the containing cavity 12a is of a groove structure, and a notch of the containing cavity 12a is correspondingly communicated with the opening 112, so that screws can be conveniently inserted into the containing cavity 12 a. It will be appreciated that the distribution box 12 and the box 11 may be integrally formed, which facilitates the processing of the machine body 1 and improves the stability. The material distributing box 12 and the box body 11 can also be arranged in a split mode, so that the material distributing box 12 and the box body 11 can be conveniently machined, and the assembling efficiency and the maintenance efficiency are improved.

In the present embodiment, the case 11 has a square or rectangular parallelepiped structure. The distribution box 12 may be provided in a square or rectangular parallelepiped configuration. In order to facilitate the full contact between the distributing tray 22 and the screws in the material containing cavity 12a, the bottom of the distributing tray 12 (i.e. the bottom wall of the material containing cavity 12 a) is inclined, so that the material containing cavity 12a can slide down to the distributing tray 22 through the inclined bottom wall.

Further, as shown in fig. 2 and fig. 3, in the present embodiment, the material distribution box 12 includes a bottom plate 121 and a side plate 122, wherein the bottom plate 121 is accommodated in the mounting cavity 111 and connected to the bottom wall of the mounting cavity 111, the bottom plate 121 is disposed in an inclined manner, and the output shaft of the driving member 21 penetrates through the bottom plate 121 and is connected to the material distribution plate 22; the side plate 122 is accommodated in the mounting cavity 111 and connected with the bottom plate 121, and the bottom plate 121 and the side plate 122 enclose to form a material containing cavity 12a communicated with the opening 112.

It can be understood that the bottom plate 121 is a plate-shaped structure, the side plates 122 are arc-shaped structures, and the side plates 122 and the bottom plate 121 enclose to form a material containing cavity 12a with a notch. In order to smoothly convey the screws adsorbed in the through holes 2221 of the turntable 222 to the openings 112 for material taking, as shown in fig. 2, in the present embodiment, the bottom plate 121 is disposed in an inclined manner. In the present embodiment, in order to collect the screws of the material containing cavity 12a to the rotary disc 222 and make the through holes 2221 of the rotary disc 222 fully contact with the screws in the material containing cavity 12a, the connecting portion of the side plate 122 and the lower end of the bottom plate 121 is arranged in an arc shape and is arranged in an inclined manner.

In this embodiment, the bottom plate 121 is provided with a mounting groove 1212, the bottom plate 221 is mounted in the mounting groove 1212 in a limited manner, the rotary plate 222 is abutted to the bottom plate 221, and the part of the rotary plate 222 extends into the mounting groove 1212, so that the screw can be effectively prevented from entering between the bottom plate 221 and the rotary plate 222 or between the mounting groove 1212 and the rotary plate 222 in the rotation process of the rotary plate 222.

Further, as shown in fig. 2, in the present embodiment, an included angle between the bottom plate 121 and the bottom wall of the mounting cavity 111 is defined as θ, and 90 ° < θ < 180 °. The included angle θ may be selected to be 100 °, 110 °, 120 °, 130 °, 140 °, 150 °, 160 °, 170 °. Alternatively, 110 ≦ θ ≦ 160. So set up, be favorable to making carousel 222 be the slope setting to be favorable to guaranteeing that the screw in through-hole 2221 still is in through-hole 2221 and is difficult to the landing when carousel 222 stops rotating and vacuum generator 3 stops adsorbing.

Further, in this embodiment, the screw feeding device 100 further includes a material blocking member disposed on the wall of the material containing cavity 12a, and the material blocking member is disposed adjacent to the material distribution tray 22. It is understood that the dam may be rod-shaped or rod-shaped. One end of the material blocking part is connected to the bottom plate 121, the other end of the material blocking part extends out and is located above the rotary disc 222, and the distance between the material blocking part and the rotary disc 222 is smaller than the length of the screw, so that the vacuum generator 3 can block the screw adsorbed by the through hole 2221, if the nut of the screw is blocked at the through hole 2221, and when the screw rod of the screw extends out, when the rotary disc 222 rotates to the position where the screw corresponds to the material blocking part, the material blocking part can block the screw with the incorrect direction and fall into the material containing cavity 12 a. And the screw is picked up by the machine or manually at the correct pick-up location directly above the opening 112.

The utility model discloses a screw feedway 100 takes out the screw from flourishing material chamber 12a through adopting vacuum adsorption's mode, has avoided the little screw to extrude each other, the stack causes the card material. Meanwhile, through the arrangement of the current detection device, whether the turntable 222 is blocked or not is detected in a current detection mode of the current detection device, and if the blockage occurs, the driving motor 211 can be controlled to automatically rotate reversely, so that the material blocking machine is effectively prevented from being stopped.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A screw feeder, comprising:

the machine body is provided with a material containing cavity;

2. The screw feeding device according to claim 1, wherein the distributing tray includes a base plate connected to the wall of the material containing cavity and a rotating plate movably connected to the base plate, the rotating plate is provided with a plurality of through holes arranged at intervals, the output shaft of the driving member penetrates through the wall of the material containing cavity and the base plate and is connected to the rotating plate, and the driving member drives the rotating plate to rotate relative to the base plate.

3. The screw feeding device according to claim 2, wherein a cavity communicated with the plurality of through holes is formed between the base plate and the turntable, the base plate is provided with an air suction hole communicated with the cavity, and the cavity wall of the material containing cavity is provided with an air suction port corresponding to the air suction hole;

4. The screw feeding device according to claim 3, wherein a mounting groove is concavely formed on the wall of the material containing cavity, the base plate is mounted in the mounting groove, the suction opening is formed in the bottom wall of the mounting groove, the output shaft of the driving member penetrates through the bottom wall of the mounting groove and the base plate to be connected with the rotary plate, and the driving member drives the rotary plate to rotate along the surface of the base plate.

5. The screw feeding device according to claim 4, further comprising a solenoid valve disposed in said body, said solenoid valve being electrically connected to said driving member and said vacuum generator.

6. A screw feeding device as claimed in any one of claims 1 to 5, wherein said driving member comprises a driving motor provided in said body, two driving wheels and a transmission shaft, one of said driving wheels is connected to an output shaft of said driving motor, the other of said driving wheels is connected to one end of said transmission shaft, the other end of said transmission shaft is rotatably connected to said distributing tray through the wall of said material containing chamber, and said two driving wheels are connected by a transmission belt.

7. Screw feeding device according to any one of claims 1 to 5, characterised in that said body comprises:

8. The screw feeding device according to claim 7, wherein the distribution box comprises:

9. Screw feeder according to claim 8, characterised in that the angle between the base plate and the bottom wall of the mounting chamber is defined as θ, 90 ° < θ < 180 °.

10. The screw feeding device according to claim 1, further comprising a blocking member disposed on a wall of the material containing cavity, wherein the blocking member is disposed adjacent to the material distributing tray.