CN217076289U - Quantitative screw feeding device - Google Patents

Abstract

The application relates to the technical field of material conveying equipment, in particular to a quantitative screw feeding device, the feeding column is connected to the machine body in a rotating mode around the axis of the feeding column, the feeding column is located under the feeding hopper, a plurality of feeding grooves are formed in one end face of the feeding column, the feeding grooves are circumferentially arranged around the axis of the feeding column, a plurality of feeding grooves used for communicating the inside of the feeding hopper and the feeding grooves are formed in the side wall of the feeding column, the feeding grooves are in one-to-one correspondence with the feeding grooves, feeding screws with different pitches are connected to the groove walls of all the feeding grooves in a rotating mode, the axial direction of each feeding screw is the same as the axial direction of the feeding column, a plurality of driving pieces driving the feeding screws to rotate around the axis of the feeding columns are arranged on the feeding column, the driving pieces correspond to the feeding screws one to one, and the lower end face of the feeding hopper is attached to the side wall of the feeding column. This application can make things convenient for the workman to change the pay-off volume to the look master batch.

Description

Quantitative screw feeding device

Technical Field

The application relates to the technical field of material conveying equipment, in particular to a quantitative screw feeding device.

Background

The color master batch is a plastic colorant prepared by well dispersing pigment or additive and thermoplastic resin with high proportion, at present, the fiber is required to be dyed by the color master batch in the chemical fiber industry, so that the fiber with various colors can be produced, and because the color master batch is a high-concentration pigment product, the change of the color of the product is greatly influenced by a very small amount, workers are required to ensure quantitative feeding of the color master batch, and too much feeding and too little feeding can not be carried out at one time.

In the related art, the worker usually carries out quantitative feeding on the color master batches by adopting a screw feeding device, the screw feeding device comprises a machine body, an inlet hopper for the worker to pour the color master batches is fixedly connected onto the machine body, a feeding pipe is communicated below the inlet hopper, a feeding screw is rotationally connected into the feeding pipe, the feeding pipe is fixedly connected onto the machine body, a motor is fixedly connected onto the machine body, and an output shaft of the motor is coaxially and fixedly connected with the feeding screw.

When workers need to feed color master batches, the workers pour the color master batches into the feeding hopper, the color master batches enter the feeding pipe, the workers start the motor, the output shaft of the motor drives the feeding screw to rotate around the axis of the feeding screw, and the screw pitch of the feeding screw is fixed, so that the feeding screw can feed the color master batches quantitatively.

However, when workers need to change the feeding amount of the color master batches, the workers need to replace the feeding screw rod in the feeding pipe, time and labor are wasted, and the workers are inconvenient to change the feeding amount of the color master batches.

SUMMERY OF THE UTILITY MODEL

For the convenience workman changes the pay-off volume to the look master batch, this application provides a ration screw rod material feeding unit.

The application provides a pair of quantitative screw rod material feeding unit adopts following technical scheme: a quantitative screw feeding device comprises a machine body, wherein a feeding hopper is arranged on the machine body, a feeding column is arranged on the machine body, the feeding column is rotationally connected with the machine body around the axis of the feeding column, the feeding column is positioned under the feeding hopper, a plurality of feeding grooves are arranged on the end surface of one end of the feeding column, the feeding grooves are circumferentially arranged by taking the axis of the feeding column as the circle center, a plurality of feeding grooves for communicating the interior of the feeding hopper and the feeding groove are arranged on the side wall of the feeding column, the feeding grooves correspond to the feeding grooves one by one, feeding screws with different screw pitches are rotationally connected on the groove walls of all the feeding grooves, the axial direction of the feeding screw is the same as that of the feeding column, a plurality of driving pieces for driving the feeding screw to rotate around the axis of the feeding screw are arranged on the feeding column, the driving pieces correspond to the feeding screw rods one by one, and the lower end face of the feeding hopper is attached to the side wall of the feeding column.

Through adopting above-mentioned technical scheme, when the workman need change the pay-off volume to the look master batch, the workman rotates the pay-off post, make the pay-off post rotatory around its self axis, aim at the feeding chute that the feeding screw rod of required pitch corresponds into the hopper lower extreme until the workman, then the workman starts the driving piece that corresponds the feeding screw rod, the driving piece drives the feeding screw rod that corresponds and rotates around self axis, the workman pours the master batch into the hopper again, the master batch enters into the feeding chute through the feeding chute in, the feeding screw rod carries out the pay-off to the look master batch, thereby made things convenient for the workman to change the pay-off volume to the look master batch.

Optionally, a driving ring is coaxially arranged on the side wall of the feeding column, a limiting block is arranged on the inner wall of the driving ring, a limiting groove for the limiting block to be embedded in a sliding manner is formed in the outer wall of the feeding column, the extending direction of the limiting groove is the same as the axial direction of the feeding column, and a force application handle for workers to rotate the feeding column is arranged on the outer wall of the driving ring.

Through adopting above-mentioned technical scheme, when the workman need transmit the stock column soon, the workman grasps application of force handle and rotates, and application of force handle drives the drive and encircles its self axis rotatory, and the drive ring drives the stopper rotatory, because the stopper slides to inlay establishes at spacing inslot to it is rotatory around its self axis to drive the stock column, has made things convenient for the workman to rotate the stock column.

Optionally, be equipped with the suggestion subassembly on the organism, the suggestion subassembly is including locating the installation piece on the organism, the one end of installation piece orientation pay-off post is equipped with elastic protrusion, set up the joint groove of the protruding joint of a plurality of confession elasticity on the lateral wall of pay-off post, joint groove and feeding screw one-to-one.

Through adopting above-mentioned technical scheme, when the pay-off post was rotatory around self axis, the elastic bulge was contradicted and takes place deformation in the cell wall in joint groove, the elastic bulge with the separation of joint groove and contradict in pay-off post lateral wall, when the elastic bulge corresponds with the joint groove, the elastic bulge replied to natural state and inserted the joint inslot, the feed chute notch that corresponds with this joint groove this moment corresponds with the lower extreme that goes into the hopper to whether the notch that has made things convenient for the workman to confirm the feed chute corresponds with the lower extreme that goes into the hopper.

Optionally, a locking assembly for limiting rotation of the feeding column is arranged on the machine body, the locking assembly comprises a plurality of locking rods arranged on the machine body, the axial direction of each locking rod is the same as the axial direction of the feeding column, the locking rods correspond to the feeding screw rods one to one, a locking hole for the locking rods to be inserted and connected in a sliding mode is formed in the force application handle, one end of the limiting groove is close to each locking rod, and the other end of the limiting groove is far away from each locking rod.

Through adopting above-mentioned technical scheme, after the workman has rotated the pay-off post, the workman promotes the application of force handle for the drive ring drives the stopper and slides in the spacing groove, and the stopper slides towards the one end that is close to the locking lever, and it is downthehole at the locking until the locking lever slides to peg graft, thereby makes application of force handle, drive ring and pay-off post be difficult for taking place to rotate, has improved the stability of pay-off post, makes the feed chute that masterbatch pay-off in-process corresponds and the difficult emergence separation in hopper below.

Optionally, a first magnet is arranged on a groove wall of one end, close to the locking rod, of the limiting groove, and a second magnet attracted to the first magnet is arranged on one side, facing the first magnet, of the limiting block.

Through adopting above-mentioned technical scheme, when the locking lever slides and inserts the locking hole in, first magnet and the mutual laminating of second magnet adsorb for locking lever is difficult for separating with the locking hole under no exogenic action, has improved the stability of locking lever.

Optionally, a sealing assembly for preventing the material from entering the feeding chute is arranged on the feeding hopper, the sealing assembly comprises a sealing plate, and a sealing groove for the sealing plate to be slidably inserted into the feeding hopper is formed in the outer wall of the feeding hopper.

Through adopting above-mentioned technical scheme, when the workman need rotate the feeding column, the workman promotes the closing plate earlier and slides in the closing groove for the closing plate is contradicted in the inner wall of going into the hopper, and the masterbatch in going into the hopper is difficult for entering into the feeding groove, then, the workman will correspond the masterbatch in the feeding groove and continue the pay-off and accomplish, makes the masterbatch in the corresponding feeding groove empty the back, and the workman rotates the feeding column again and changes the pay-off volume to the masterbatch, has made things convenient for the feeding of workman control income hopper.

Optionally, an electric cylinder is arranged on the machine body, a piston rod of the electric cylinder is connected with the closing plate, and the axial direction of the piston rod of the electric cylinder is the same as the moving direction of the closing plate in the closing groove.

By adopting the technical scheme, when workers need to use the closing plate, the workers can drive the closing plate to slide in the closing groove only by starting the electric cylinder, and the workers can use the closing plate conveniently.

Optionally, the side wall of the feeding column is provided with a plurality of observation grooves communicated with the feeding grooves, the observation grooves correspond to the feeding grooves one to one, and observation windows used for shielding the notches of the observation grooves are arranged in the observation grooves.

Through adopting above-mentioned technical scheme, the workman only need look over the observation window can know the pay-off condition in corresponding the chute feeder, has also made things convenient for the pay-off screw pitch that the workman confirmed to use simultaneously.

To sum up, the application comprises the following beneficial technical effects:

1. through the arrangement of the machine body, the feeding hopper, the feeding column, the feeding groove, the feeding screw and the driving piece, workers can change the feeding amount of the color master batches conveniently;

2. through the arrangement of the driving ring, the limiting block, the limiting groove and the force application handle, workers can conveniently rotate the feeding column;

3. through the arrangement of the locking assembly, workers can conveniently limit the rotation of the feeding column, the stability of the feeding column is improved, and the feeding chute and the feeding hopper are not easily separated in the color master batch feeding process;

4. the stability of the locking rod is improved through the arrangement of the first magnet and the second magnet;

5. through the arrangement of the prompt component, a worker can conveniently determine whether the lower end of the feeding chute corresponds to the lower end of the feeding hopper or not;

6. through the arrangement of the sealing assembly, the feeding of the feeding hopper is conveniently controlled by workers;

7. through the arrangement of the electric cylinder, the sealing plate is convenient for workers to use, and the stability of the sealing plate is improved;

8. through the arrangement of the observation groove and the observation window, a worker can conveniently know the feeding condition in the corresponding feeding groove, and meanwhile, the worker can conveniently determine the pitch of the feeding screw rod to be used.

Drawings

FIG. 1 is a schematic diagram of the overall structure in the embodiment of the present application;

FIG. 2 is a schematic cross-sectional view showing the entire interior in the embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of the embodiment of the present application for showing a drive ring, a stopper groove, a force application handle, a first magnet, and a second magnet;

FIG. 4 is a schematic cross-sectional structural diagram for showing a cue assembly in an embodiment of the present application;

FIG. 5 is a schematic structural view showing a lock assembly in an embodiment of the present application;

fig. 6 is a schematic cross-sectional view of a closure assembly in an embodiment of the present application.

Reference numerals are as follows: 1. a body; 11. feeding into a hopper; 2. a feeding column; 21. a feed chute; 22. a feed chute; 23. a feed screw; 24. a motor; 3. a drive ring; 31. a limiting block; 32. a limiting groove; 33. a force application handle; 4. a prompt component; 41. mounting blocks; 42. an elastic protrusion; 43. a clamping groove; 5. a locking assembly; 51. a locking lever; 52. connecting blocks; 53. a locking hole; 6. a first magnet; 61. a second magnet; 7. a closure assembly; 71. a closing plate; 72. closing the groove; 73. an electric cylinder; 8. an observation tank; 81. and (4) an observation window.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses quantitative screw rod material feeding unit. As shown in fig. 1 and 2, a quantitative screw feeding device includes a vertically arranged machine body 1, a vertically arranged feeding hopper 11 is fixedly connected to the machine body 1, and a flared opening of the feeding hopper 11 is arranged upward. It is connected with pay-off post 2 to rotate on the organism 1, pay-off post 2 extends along the horizontal direction, the one end lateral wall of pay-off post 2 is located into hopper 11 under, the lower extreme that goes into hopper 11 is the arc setting and laminates in the lateral wall of pay-off post 2, organism 1 is worn to locate by the one end that pay-off post 2 kept away from into hopper 11, and a plurality of chute feeder 21 has been seted up to the one end terminal surface that pay-off post 2 kept away from into hopper 11, all chute feeder 21 arrange for centre of a circle circumference around the axis of pay-off post 2, the extending direction of chute feeder 21 is the same with the axial of pay-off post 2. The side wall of the feeding column 2 is provided with a plurality of feeding grooves 22, the feeding grooves 22 correspond to the feeding grooves 21 one by one, the feeding grooves 22 penetrate through the wall of the feeding groove 21, the feeding grooves 22 extend along the radial direction of the feeding column 2, and the feeding grooves 22 correspond to the lower end openings of the feeding hoppers 11. The wall of each feeding groove 21 is rotatably connected with a feeding screw 23, and the screw pitches of the feeding screws 23 are different. One end of the feeding column 2 close to the feeding hopper 11 is fixedly connected with a plurality of driving pieces for driving the feeding screw 23 to rotate around the axis of the feeding screw.

As shown in fig. 1 and fig. 2, in this embodiment, the number of the feeding troughs 21 is preferably four, the number of the feeding troughs 22 and the number of the driving members are the same as the number of the feeding troughs 21, in this embodiment, the driving members are motors 24, the axial direction of output shafts of the motors 24 is the same as the axial direction of the feeding columns 2, the motors 24 correspond to the feeding screws 23 one by one, and the output shafts of the motors 24 are coaxially and fixedly connected with the corresponding feeding screws 23.

When workers need to change the feeding amount of color master batches, the workers rotate the feeding column 2, so that the feeding column 2 rotates around the axis of the feeding column 2, the original feeding groove 21, the original feeding groove 22, the feeding screw 23 and the motor 24 are separated from the feeding hopper 11 at the same time until the notch of the new feeding groove 22 is aligned with the opening below the feeding hopper 11, the workers restart the corresponding motor 24, the output shaft of the motor 24 drives the corresponding feeding screw 23 to rotate around the axis of the output shaft of the motor 24, the workers pour the color master batches into the feeding hopper 11, the color master batches in the feeding hopper 11 pass through the feeding groove 22 to enter the feeding groove 21, at the moment, the feeding screw 23 rotates to push the color master batches entering the feeding groove 21 in a quantitative mode, the color master batches are conveyed quantitatively along the axial direction of the feeding column 2, and the feeding amount of the color master batches is changed conveniently according to the screw pitches of different feeding screws 23.

As shown in fig. 2 and fig. 3, the sliding sleeve is provided with a driving ring 3 on the side wall of the feeding column 2, the inner wall of the driving ring 3 is attached to the outer wall of the feeding column 2, a limiting block 31 is fixedly connected to the inner wall of the driving ring 3, a limiting groove 32 axially extending along the feeding column 2 is formed in the outer wall of the feeding column 2, the limiting block 31 is embedded in the limiting groove 32 in a sliding manner, a force application handle 33 is fixedly connected to the outer wall of the driving ring 3, when a worker needs to rotate the feeding column 2, the worker grasps the force application handle 33 to rotate, the force application handle 33 drives the driving ring 3 to rotate around the axis of the worker, the driving ring 3 drives the limiting block 31 to abut against the groove wall of the limiting groove 32, so that the feeding column 2 and the driving ring 3 rotate synchronously, and the worker can rotate the feeding column 2 conveniently.

As shown in fig. 1 and 4, a prompt component 4 is arranged on the machine body 1, the prompt component 4 includes an installation block 41 fixedly connected to the machine body 1, the installation block 41 is located between the driving ring 3 and the machine body 1, the installation block 41 is fixedly connected with an elastic protrusion 42 abutting against the side wall of the feeding column 2 towards the end face of one end of the feeding column 2, the cross section of the elastic protrusion 42 is semicircular, the elastic protrusion 42 abuts against the side wall of the feeding column 2 and deforms, and a plurality of clamping grooves 43 are formed in the side wall of the feeding column 2, in this embodiment, the number of the clamping grooves 43 is equal to the number of the feeding grooves 21, the clamping grooves 43 correspond to the feeding grooves 21 one to one, and all the clamping grooves 43 are circumferentially arranged around the axis of the feeding column 2 as the circle center.

When a worker rotates the feeding column 2, the elastic protrusion 42 abuts against the groove wall of the clamping groove 43 to deform, the elastic protrusion 42 and the groove wall of the clamping groove 43 are separated and then abut against the side wall of the feeding column 2 and keep a deformation state, until the notch of one feeding groove 22 corresponds to the lower end opening of the feeding hopper 11, the elastic protrusion 42 and the corresponding clamping groove 43 are opposite, the elastic protrusion 42 returns to a natural state and is inserted into the clamping groove 43, and a pause signal is fed back to the worker, so that the worker can conveniently determine whether the notch of the feeding groove 22 corresponds to the lower end of the feeding hopper 11.

As shown in fig. 5, a locking assembly 5 for locking the force-applying handle 33 to make the feeding column 2 not easy to rotate is disposed on the machine body 1, the locking assembly 5 includes a plurality of locking rods 51, in this embodiment, the number of the locking rods 51 is preferably four, the locking rods 51 are circumferentially arranged around the axis of the feeding column 2 as a circle center, the locking rods 51 are fixedly connected to the machine body 1, the axial direction of the locking rods 51 is the same as the axial direction of the feeding column 2, a connecting block 52 is fixedly connected to the force-applying handle 33, a locking hole 53 for the locking rods 51 to be slidably inserted is formed on the connecting block 52, when a worker completes rotation of the feeding column 2, the locking hole 53 corresponds to one of the locking rods 51, the worker pushes the force-applying handle 33, the force-applying handle 33 drives the driving ring 3 to move toward the locking rod 51, the driving ring 3 drives the limiting block 31 to move toward the locking rod 51 in the limiting groove 32 until the locking rod 51 is slidably inserted in the locking hole 53, therefore, the force application handle 33 and the driving ring 3 are not easy to rotate around the axis of the driving ring 3, and simultaneously, the driving ring 3 drives the limiting block 31 to abut against the groove wall of the limiting groove 32, so that the feeding column 2 is not easy to rotate around the axis of the driving ring.

As shown in fig. 3, the first magnet 6 is fixedly connected to the groove wall of the end of the limiting groove 32 close to the machine body 1 along the length direction, the second magnet 61 is fixedly connected to the end of the limiting block 31 facing the first magnet 6, the first magnet 6 and the second magnet 61 attract each other, when a worker needs to slide and insert the locking rod 51 into the locking hole 53, the worker pushes the force application handle 33 to move toward the machine body 1, at this time, the first magnet 6 attracts the second magnet 61, which is convenient for the worker to push the force application handle 33, and meanwhile, when the locking rod 51 is inserted into the locking hole 53, the first magnet 6 and the second magnet 61 are attached to each other and attracted to make the force application handle 33 not easily move under the condition of no external force, so that the locking rod 51 is not easily separated from the locking hole 53, and the stability of the locking rod 51 is improved.

As shown in fig. 1 and 6, a sealing assembly 7 for limiting the color master batches entering the feeding hopper 11 into the feeding chute 22 is arranged on the machine body 1, the sealing assembly 7 comprises an electric cylinder 73 fixedly connected to the machine body 1, the axial direction of a piston rod of the electric cylinder 73 is the same as the axial direction of the feeding column 2, a sealing plate 71 is fixedly connected to the piston rod of the electric cylinder 73, the sealing plate 71 is horizontally arranged, a sealing groove 72 penetrating through the inner wall of the feeding hopper 11 is formed in the outer wall of the feeding hopper 11, and the sealing plate 71 is slidably inserted into the sealing groove 72.

When a worker needs to rotate the feeding column 2, the worker starts the electric cylinder 73, a piston rod of the electric cylinder 73 pushes the closing plate 71 to slide in the closing groove 72 until the closing plate 71 abuts against the inner wall of the feeding hopper 11, at the moment, the closing plate 71 divides the feeding hopper 11 into an upper cavity and a lower cavity, the worker continues to keep the feeding screw 23 in the feeding groove 21 to rotate until the color master batches in the feeding groove 21 are conveyed, the worker repeats the action of rotating the feeding column 2, after the rotation is finished, the worker starts the electric cylinder 73 again, so that the electric cylinder 73 drives the closing plate 71 to slide in the closing groove 72, one end, far away from the electric cylinder 73, of the closing plate 71 sinks into the closing groove 72, and the worker can conveniently control feeding of the feeding hopper 11.

As shown in fig. 1, the side wall of the feeding column 2 is provided with a plurality of observation grooves 8 penetrating through the wall of the feeding groove 21, the wall of each observation groove 8 is fixedly connected with an observation window 81 for closing the notch of the observation groove 8, so that workers can know the accumulation condition of the color master batches in the feeding groove 21 by looking over the observation windows 81, and the pitch of the feeding screw 23 determined to be adopted by the workers is convenient.

The implementation principle of the quantitative screw feeding device in the embodiment of the application is as follows: when workers need to change the feeding amount of color master batches, firstly, the workers start the electric cylinder 73, the piston rod of the electric cylinder 73 pushes the closing plate 71 to slide in the closing groove 72, the feeding hopper 11 is closed, and the color master batches are not easy to enter the feeding groove 21.

Then, the worker pulls the force application handle 33, the force application handle 33 drives the driving ring 3 to slide, the driving ring 3 drives the limiting block 31 to slide in the limiting groove 32, at this time, the first magnet 6 is separated from the second magnet 61, the locking rod 51 is separated from the locking hole 53, the worker rotates the force application handle 33 again, the force application handle 33 drives the driving ring 3 and the limiting block 31 to rotate around the axis of the feeding column 2, the limiting block 31 drives the feeding column 2 to rotate around the axis thereof, at this time, the elastic protrusion 42 abuts against the groove wall of the clamping groove 43 to be deformed, the elastic protrusion 42 abuts against the side wall of the feeding column 2 after being separated from the clamping groove 43, the lower end opening of the feeding hopper 11 is separated from the original corresponding feeding groove 22, until the lower end opening of the feeding hopper 11 corresponds to one of the feeding grooves 22, the elastic protrusion 42 corresponds to the corresponding clamping groove 43, and the elastic protrusion 42 returns to the natural state and is clamped in the clamping groove 43, and feeding back a worker signal.

Then, the worker pushes the force application handle 33, the force application handle 33 drives the driving ring 3 to slide towards the direction close to the locking rod 51, the limiting block 31 drives the second magnet 61 to move towards the first magnet 6, when the locking rod 51 is inserted into the locking hole 53 in a sliding mode, the first magnet 6 and the second magnet 61 are mutually adsorbed, the material feeding column 2 is not prone to rotating, the worker starts the electric cylinder 73 again, the electric cylinder 73 drives the closing plate 71 to slide in the closing groove 72, and one end, far away from the electric cylinder 73, of the closing plate 71 sinks into the closing groove 72.

According to the actions, the feeding screw rods 23 with different pitches are replaced, so that workers can change the feeding amount of the color master batches conveniently.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a ration screw rod material feeding unit, includes organism (1), be equipped with into hopper (11) on organism (1), its characterized in that: the feeding device is characterized in that a feeding column (2) is arranged on the machine body (1), the feeding column (2) is connected to the machine body (1) in a rotating mode around the axis of the feeding column (2), the feeding column (2) is located under the feeding hopper (11), a plurality of feeding grooves (21) are formed in one end face of the feeding column (2), the feeding grooves (21) are circumferentially distributed by taking the axis of the feeding column (2) as the circle center, a plurality of feeding grooves (22) used for communicating the interior of the feeding hopper (11) with the feeding grooves (21) are formed in the side wall of the feeding column (2), the feeding grooves (22) correspond to the feeding grooves (21) one by one, feeding screws (23) with different screw pitches are rotatably connected to the wall of each feeding groove (21), the axial direction of each feeding screw (23) is the same as the axial direction of the feeding column (2), a plurality of driving pieces for driving the feeding screws (23) to rotate around the axis of the feeding columns (2) are arranged on the feeding column (2), the driving pieces correspond to the feeding screw rods (23) one by one, and the lower end face of the feeding hopper (11) is attached to the side wall of the feeding column (2).

2. The quantitative screw feeding device according to claim 1, wherein: the material conveying device is characterized in that a driving ring (3) is coaxially arranged on the side wall of the material conveying column (2), a limiting block (31) is arranged on the inner wall of the driving ring (3), a limiting groove (32) for the limiting block (31) to be embedded in a sliding mode is formed in the outer wall of the material conveying column (2), the extending direction of the limiting groove (32) is the same as the axial direction of the material conveying column (2), and a force application handle (33) for workers to rotate the material conveying column (2) is arranged on the outer wall of the driving ring (3).

3. The quantitative screw feeding device according to claim 2, wherein: be equipped with suggestion subassembly (4) on organism (1), installation piece (41) on locating organism (1) are drawn together to suggestion subassembly (4), installation piece (41) are equipped with elastic bulge (42) towards the one end of pay-off post (2), offer joint groove (43) of the protruding (42) joint of a plurality of confession elasticity on the lateral wall of pay-off post (2), joint groove (43) and pay-off screw rod (23) one-to-one.

4. The quantitative screw feeding device according to claim 2, wherein: be equipped with on organism (1) and be used for restricting the rotatory locking Assembly (5) of pay-off post (2), locking Assembly (5) include that a plurality of locates locking lever (51) on organism (1), the axial of locking lever (51) is the same with the axial of pay-off post (2), locking lever (51) and pay-off screw rod (23) one-to-one, set up on application of force handle (33) and supply locking lever (51) slip locking hole (53) of pegging graft, the one end of spacing groove (32) is close to locking lever (51), locking lever (51) are kept away from to the other end of spacing groove (32).

5. The quantitative screw feeding device according to claim 4, wherein: a first magnet (6) is arranged on the groove wall of one end, close to the locking rod (51), of the limiting groove (32), and a second magnet (61) which is mutually attracted with the first magnet (6) is arranged on one side, facing the first magnet (6), of the limiting block (31).

6. The quantitative screw feeding device according to claim 1, wherein: the feeding hopper (11) is provided with a sealing assembly (7) for preventing materials from entering the feeding chute (21), the sealing assembly (7) comprises a sealing plate (71), and the outer wall of the feeding hopper (11) is provided with a sealing groove (72) for the sealing plate (71) to be slidably inserted into the feeding hopper (11).

7. The quantitative screw feeding device of claim 6, wherein: an electric cylinder (73) is arranged on the machine body (1), a piston rod of the electric cylinder (73) is connected with the closing plate (71), and the axial direction of the piston rod of the electric cylinder (73) is the same as the moving direction of the closing plate (71) in the closing groove (72).

8. The quantitative screw feeding device according to claim 1, wherein: the side wall of the feeding column (2) is provided with a plurality of observation grooves (8) communicated with the feeding groove (21), the observation grooves (8) are in one-to-one correspondence with the feeding groove (21), and observation windows (81) used for shielding the notches of the observation grooves (8) are arranged in the observation grooves (8).

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