Screw conveyer with material quantifying function

Abstract

The invention relates to the technical field of conveying, in particular to a spiral conveyor with a material quantifying function, which comprises a servo motor, the servo motor is externally connected with a numerical control system, the output end of the servo motor is connected with a crushing mechanism, one end of the crushing mechanism is connected with a spiral conveying mechanism, and the crushing mechanism comprises a crushing assembly. The horizontal position of the smashing assembly is higher than the spiral conveying mechanism, a rotating assembly is arranged below the smashing assembly, fixing columns are fixedly connected to the lower portion of the rotating assembly, the two fixing columns are symmetrically distributed along the center of the rotating assembly, a threaded rod is arranged between the two fixing columns, and one end of the threaded rod is fixedly connected with a servo motor. The other end of the threaded rod is fixedly connected with the spiral conveying mechanism. The servo motor is connected with the threaded rod, the threaded rod is connected with the screw rod, the threaded rod can drive the rotating assembly and the smashing assembly to smash and mix materials while quantitative conveying of the materials is completed, and the phenomenon that the machine is stuck due to large-particle materials is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of conveying, in particular to a screw conveyor with a material quantitative function. Background Art

[0002] The quantitative principle of the screw conveyor with material quantitative function mainly involves the precise control of material flow and weight. This equipment is usually called a screw quantitative feeder or a weighing screw conveyor, which is widely used in cement plants, chemical industry, building materials and other fields for quantitative feeding of bulk materials. The screw quantitative feeder has the advantages of high precision, continuous feeding, durability and reliability. It can achieve accurate quantitative feeding of bulk materials to meet the requirements of different speeds on the production line. At the same time, it has a simple structure, convenient maintenance, can work continuously for a long time, and is suitable for feeding scenarios of various powders and fine particles. The present invention provides a screw conveyor with material quantitative function. On the basis of the screw quantitative feeder, the function of material grinding is added. While the machine conveys the material, it can also mix and crush the material, avoiding the situation where large particles of material get stuck in the spiral column and reducing machine loss. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a screw conveyor with a material quantitative function.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: a screw conveyor with a material quantitative function, comprising a servo motor, the servo motor is externally connected to a numerical control system, the output end of the servo motor is connected to a crushing mechanism, one end of the crushing mechanism is connected to a spiral transmission mechanism, the crushing mechanism comprises a crushing assembly, the horizontal position of the crushing assembly is higher than the spiral transmission mechanism, a rotating assembly is arranged below the crushing assembly, a fixed column is fixedly connected below the rotating assembly, there are two fixed columns, the two fixed columns are symmetrically distributed along the center of the rotating assembly, a threaded rod is arranged in the middle of the two fixed columns, the threaded rod passes through the center point of the fixed column, one end of the threaded rod is fixedly connected to the servo motor, and the other end of the threaded rod is fixedly connected to the spiral transmission mechanism.

[0005] As a preferred technical solution of the present invention, the rotating assembly includes a first rotator and a second rotator, the top end of the first rotator is fixedly connected to the bottom end of the crushing assembly, the two ends of the first rotator are fixedly connected to the second rotator, and a part of the first rotator is in a socket relationship with a part of the second rotator.

[0006] As a preferred technical solution of the present invention, the first rotator includes a sleeve column, a connecting column is sleeved inside the sleeve column, and the side of the connecting column is symmetrically connected to the first connecting rod, the bottom of the connecting column is fixedly connected to the rotating disk, an eccentric connecting column is fixedly connected to the rotating disk, the eccentric connecting column is far away from the center of the circle, the eccentric connecting column is fixedly connected to the rotating disk and the sleeve ring, the sleeve ring is sleeved on the sleeve rod, the two ends of the sleeve rod are fixedly connected to swing arms, and the middle of the two swing arms is connected to the swing column.

[0007] As a preferred technical solution of the present invention, the second rotator includes a gear, the center position of the gear is fixedly connected to the gear connecting rod, the gear connecting rod is fixedly connected to the receiving frame, the gear connecting rod is located at the center line of the receiving frame, the two ends of the gear connecting rod are sleeved with a third connecting rod, the third connecting rod is fixedly connected to a connecting round rod, the connecting round rod is sleeved with a swing arm, the two sides of the receiving frame are also fixedly connected to the second connecting rod, and the upper surface of the second connecting rod is fixedly connected to the first connecting rod.

[0008] As a preferred technical solution of the present invention, the crushing assembly includes a crushing material barrel, a crushing knife column is arranged inside the crushing material barrel, the bottom end of the crushing knife column is fixedly connected to the first gear, the bottom end of the first gear is fixedly connected to the receiving column, the receiving column passes through the bottom surface of the crushing material barrel and is fixedly connected to the second gear, the second gear is fixedly connected to the connecting column, and a material discharge ladder is provided on the outside of the crushing material barrel, and the lower end of the material discharge ladder is connected to the spiral conveying mechanism and is communicated with the spiral conveying mechanism.

[0009] As a preferred technical solution of the present invention, the crushing knife column includes a rotating column, the bottom of which passes through the first gear and is connected to the bottom surface of the crushing material barrel, and a crushing blade is fixedly connected to the rotating column, and the edge of the crushing blade is sharp.

[0010] As a preferred technical solution of the present invention, the spiral conveying mechanism includes a sleeve, a spiral rod is arranged inside the sleeve, a discharge port is opened on the upper surface of the sleeve, the discharge port is adapted to the end of the discharge ladder, and a material output port is opened below the sleeve.

[0011] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0012] 1. This screw conveyor with material quantitative function is provided with a threaded rod, one end of the threaded rod is fixedly connected to the servo motor, and the other end of the threaded rod is connected to the screw rod. When the servo motor outputs, the threaded rod rotates, and the meshing rotation of the gear is driven by the rotation of the threaded rod. The rotation of the gear is transmitted to the gear connecting rod by utilizing the connection relationship between the gear and the gear connecting rod. A third connecting rod is provided to connect the gear connecting rod and the connecting round rod, and the length of the third connecting rod is limited to ensure that it is restricted when rotating. Finally, the rotation of the gear is converted into a left and right reciprocating swinging motion of the connecting round rod, and then a swing column is fixedly connected to the connecting round rod, and a swing column is fixedly connected to the swing column. The movable arm transmits the motion to the swing arm, and the left and right swing is transmitted to the sleeve rod through the swing arm. The sleeve rod can be moved back and forth by using the sleeve ring, and an eccentric connecting column is fixedly connected to the sleeve ring, and the eccentric connecting column is fixedly connected to the rotating disk, so that the back and forth sliding of the sleeve ring is eventually converted into the self-rotation of the rotating disk. By setting the rotating disk and the connecting column fixedly connected, the connecting column is rotated, and the crushing knife column fixedly connected to the connecting column is rotated, so that the material entering the crushing material barrel can be stirred and ground, thereby avoiding jamming during transportation due to excessively large material particles, or wear on the parts of the spiral transmission mechanism due to large materials, thereby extending the service life of the machine.

[0013] 2. This type of screw conveyor with material quantitative function has a sharp edge of the crushing blade on the crushing knife column, and the rotating column is fixedly connected to the first gear, the first gear is fixedly connected to the receiving column, the receiving column is fixedly connected to the second gear, and the second gear is fixedly connected to the connecting column, so that the self-rotation of the connecting column is converted into the rotation of the second gear, and the self-rotation motion is transmitted to the crushing blade through the second gear. The crushing blade has the function of stirring and crushing the material after rotation. If the input material is unevenly mixed, after the self-rotation of the crushing blade, a uniformly mixed material will be obtained from the material output port, and it is ensured that the output material particles are roughly the same.

[0014] 3. This type of screw conveyor with material quantitative function is equipped with a discharge ladder, one end of which is connected to the discharge port, and the angle of the discharge ladder is inclined, with a certain height difference with the spiral transmission mechanism, ensuring that the material in the crushing mechanism can enter the sleeve completely and smoothly, avoiding the residual material left over from the last operation in the crushing mechanism, avoiding interference and pollution of the materials collected in this operation, and improving the purity of the material acquisition.

[0015] 4. This type of screw conveyor with material quantitative function is configured such that a sleeve ring slides on a sleeve rod, the sleeve ring is fixedly connected to an eccentric connecting column, both ends of the connecting column are fixedly connected to a first connecting rod, and the position of the eccentric connecting column is configured to be away from the center of the connecting column, thereby ensuring that when the sleeve ring slides back and forth on the sleeve rod, the eccentric connecting column can convert the movement of the sleeve rod into self-rotational movement, thereby providing a prerequisite for the self-rotation of the connecting column.

[0016] 5. This type of screw conveyor with material quantitative function connects the servo motor with the threaded rod, and the threaded rod with the spiral rod. When the servo motor drives the threaded rod to rotate, the threaded rod will transmit the rotation to the spiral rod at the same time. That is, this equipment can crush and stir the material while transporting, avoiding the situation where multiple motors drive the machine, saving machine costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the front structure of the present invention as a whole;

[0019] Figure 3 It is a schematic diagram of the anatomical structure of the present invention as a whole;

[0020] Figure 4 It is a structural schematic diagram of the crushing mechanism of the present invention;

[0021] Figure 5 It is a schematic diagram of the decomposed structure of the pulverizing mechanism of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the rotating assembly of the present invention;

[0023] Figure 7 is a schematic structural diagram of the first rotating device of the present invention;

[0024] Figure 8 is a schematic structural diagram of the second rotating device of the present invention;

[0025] Fig. 9 It is a schematic diagram of the overall structure of the pulverizing mechanism of the present invention;

[0026] Fig.10 It is a structural schematic diagram of the crushing knife column of the present invention;

[0027] Fig.11 It is a structural schematic diagram of the spiral transmission mechanism of the present invention.

[0028] Among them: 1. servo motor; 2. crushing mechanism; 21. crushing assembly; 211. material crushing cylinder; 212. crushing knife column; 2121. rotating column; 2122. crushing blade; 213. first gear; 214. receiving column; 215. second gear; 216. unloading ladder; 22. rotating assembly; 221. first rotating device; 2211. sleeve column; 2212. connecting column; 2213. rotating disk; 2214. eccentric connecting column; 2215. sleeve ring ; 2216, first connecting rod; 2217, swing column; 2218, swing arm; 2219, sleeve rod; 222, second rotator; 2221, gear; 2222, connecting round rod; 2223, receiving frame; 2224, second connecting rod; 2225, third connecting rod; 2226, gear connecting rod; 23, fixed column; 24, threaded rod; 3, spiral conveying mechanism; 31, discharge port; 32, screw rod; 33, sleeve; 34, material output port. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0030] Embodiment: Figure 1-Figure 11 As shown, a screw conveyor with a material quantitative function includes a servo motor 1, the servo motor 1 is externally connected to a numerical control system, the output end of the servo motor 1 is connected to a crushing mechanism 2, one end of the crushing mechanism 2 is connected to a spiral transmission mechanism 3, the crushing mechanism 2 includes a crushing component 21, the horizontal position of the crushing component 21 is higher than the spiral transmission mechanism 3, a rotating component 22 is arranged below the crushing component 21, a fixed column 23 is fixedly connected below the rotating component 22, there are two fixed columns 23, the two fixed columns 23 are symmetrically distributed along the center of the rotating component 22, a threaded rod 24 is arranged in the middle of the two fixed columns 23, the threaded rod 24 passes through the center point of the fixed column 23, one end of the threaded rod 24 is fixedly connected to the servo motor 1, and the other end of the threaded rod 24 is fixedly connected to the spiral transmission mechanism 3.

[0031] The rotating assembly 22 includes a first rotator 221 and a second rotator 222. The top end of the first rotator 221 is fixedly connected to the bottom end of the crushing assembly 21, and both ends of the first rotator 221 are fixedly connected to the second rotator 222. A part of the first rotator 221 is in a socketed relationship with a part of the second rotator 222.

[0032] The first rotator 221 includes a sleeve column 2211, the interior of the sleeve column 2211 is sleeved with a connecting column 2212, the side of the connecting column 2212 is symmetrically connected to the first connecting rod 2216, the bottom of the connecting column 2212 is fixedly connected to the rotating disk 2213, the rotating disk 2213 is fixedly connected with an eccentric connecting column 2214, the eccentric connecting column 2214 is far away from the center of the circle, the eccentric connecting column 2214 is fixedly connected to the rotating disk 2213 and the sleeve ring 2215, the sleeve ring 2215 is sleeved on the sleeve rod 2219, the two ends of the sleeve rod 2219 are fixedly connected with swing arms 2218, and the middle of the two swing arms 2218 is connected with a swing column 2217.

[0033] The second rotator 222 includes a gear 2221, the center position of the gear 2221 is fixedly connected to a gear connecting rod 2226, the gear connecting rod 2226 is fixedly connected to the receiving frame 2223, the gear connecting rod 2226 is located at the center line of the receiving frame 2223, both ends of the gear connecting rod 2226 are sleeved with a third connecting rod 2225, the third connecting rod 2225 is fixedly connected to a connecting round rod 2222, the connecting round rod 2222 is sleeved with a swing arm 2218, and the two sides of the receiving frame 2223 are also fixedly connected to second connecting rods 2224, and the upper surface of the second connecting rod 2224 is fixedly connected to the first connecting rod 2216.

[0034] The crushing assembly 21 includes a crushing material barrel 211, and a crushing knife column 212 is arranged inside the crushing material barrel 211. The bottom end of the crushing knife column 212 is fixedly connected to the first gear 213, and the bottom end of the first gear 213 is fixedly connected to the receiving column 214. The receiving column 214 passes through the bottom surface of the crushing material barrel 211 and is fixedly connected to the second gear 215. The second gear 215 is fixedly connected to the connecting column 2212. A material discharge ladder 216 is provided on the outside of the crushing material barrel 211. The lower end of the material discharge ladder 216 is connected to the spiral conveying mechanism 3 and communicates with the spiral conveying mechanism 3.

[0035] The crushing blade column 212 includes a rotating column 2121 , the bottom of which passes through the first gear 213 and is connected to the bottom surface of the crushing material barrel 211 , and a crushing blade 2122 is fixedly connected to the rotating column 2121 , and the edge of the crushing blade 2122 is sharp.

[0036] The spiral conveying mechanism 3 includes a sleeve 33 , a spiral rod 32 is arranged inside the sleeve 33 , a material discharge port 31 is provided on the upper surface of the sleeve 33 , the material discharge port 31 is adapted to the end of the material discharge ladder 216 , and a material output port 34 is provided below the sleeve 33 .

[0037] Working principle:

[0038] The first step is to turn on the servo motor 1, which starts to output to the crushing mechanism 2. The threaded rod 24 in the crushing mechanism 2 starts to rotate after receiving the drive from the servo motor 1. A plurality of threads are provided on the threaded rod 24, and the threads provided on the threaded rod 24 match the gear 2221. When the threaded rod 24 rotates, the gear 2221 meshing with the threaded rod 24 is driven to rotate. The gear 2221 is connected to the gear connecting rod 2226, that is, when the threaded rod 24 rotates, the gear connecting rod 2226 connected to the gear 2221 rotates along with the rotation of the gear 2221. Both ends of the gear connecting rod 2226 penetrate the receiving frame 2223 and are connected to the third connecting rod 2225. The length of the third connecting rod 2225 is limited. When the gear connecting rod 2226 rotates, the third connecting rod 2225 connected to the gear connecting rod 2226 will also rotate, but the third connecting rod 2225 is limited by its own length. When the gear connecting rod 2226 changes its rotation direction, the gear 2221 connected to the gear connecting rod 2226 will also change along with the change in the direction of the gear connecting rod 2226. The whole movement process is manifested as the third connecting rod 2225 rotates clockwise along with 226, and the third connecting rod 2225 is restricted by the receiving frame 2223, changing from clockwise rotation to counterclockwise rotation, driving the gear connecting rod 2226 connected to the third connecting rod 2225 to change its rotation direction, also from clockwise to counterclockwise, and the gear 2221 fixedly connected to the gear connecting rod 2226 will also change from clockwise rotation to counterclockwise rotation, until the third connecting rod 2225 contacts the receiving frame 2223 again, and the rotation direction changes again, that is, the third connecting rod 2225 and the gear 2221 make a left and right reciprocating swinging motion trajectory.

[0039] In the second step, the third connecting rod 2225 is fixedly connected to a connecting rod 2222, and the connecting rod 2222 is fixedly connected to a swing column 2217. Both ends of the swing column 2217 are fixedly connected to swing arms 2218. A sleeve rod 2219 is provided between the two swing arms 2218. When the third connecting rod 2225 in the first step performs a left-right reciprocating swinging motion, the connecting rod 2222 fixedly connected to the third connecting rod 2225 also performs a left-right reciprocating swinging motion. The swing column 2217 swings along with the third connecting rod 2225, and the swing arm 2218 connected to the swing column 2217 swings left and right along with the first rotator 221. The sleeve rod 2219 fixedly connected between the two swing arms 2218 also swings left and right. The sleeve rod 2219 is sleeved with a sleeve ring 2215, and the sleeve ring 2215 can slide back and forth on the sleeve rod 2219. The sleeve ring 2215 is fixedly connected with an eccentric connecting column 2214, and the eccentric connecting column 2214 penetrates the rotating The disk 2213 is fixedly connected to the rotating disk 2213. When the sleeve rod 2219 performs a left-right swinging motion, the sleeve ring 2215 sleeved on the sleeve rod 2219 slides back and forth on the sleeve rod 2219 driven by the sleeve rod 2219. Since the sleeve ring 2215 is restricted by the movement of the eccentric connecting column 2214, and the rotating disk 2213 is fixedly connected to the connecting column 2212, the connecting column 2212 is sleeved with a sleeve column 2211 on the outside, and the sleeve column 2211 is fixed by the first connecting rod 2216 fixedly connected at both ends. It is connected to the second connecting rod 2224, so the movement of the collar 2215 on the collar 2219 is converted into the rotational movement of the collar 2215, the collar 2215 is fixedly connected to the eccentric connecting column 2214, the eccentric connecting column 2214 rotates under the drive of the collar 2215, the eccentric connecting column 2214 is fixedly connected to the rotating disk 2213, the rotating disk 2213 rotates along with the eccentric connecting column 2214, and the connecting column 2212 fixedly connected to the rotating disk 2213 also rotates.

[0040] In the third step, the top of the connecting column 2212 is fixedly connected with the second gear 215. When the connecting column 2212 rotates, the second gear 215 connected with the connecting column 2212 also rotates. The second gear 215 is fixedly connected with the receiving column 214. The receiving column 214 is fixedly connected with the first gear 213. When the second gear 215 rotates, the receiving column 214 rotates with the second gear 215, and the first gear 213 rotates with the receiving column 214. The first gear 213 is connected with the crushing knife column 212. The crushing knife column 212 rotates with the first gear 213. The crushing blade 2122 is arranged on the crushing knife column 212. At this time, the operator can put the material to be transported into the crushing material barrel 211, and the material enters the crushing The material barrel 211 is then crushed by the rotation of the crushing blade 2122, and flows out from the discharge ladder 216 after being crushed. Under the action of gravity, it follows the track of the discharge ladder 216 into the discharge port 31, and enters the sleeve 33 through the discharge port 31. A spiral rod 32 is provided in the sleeve 33, and the spiral rod 32 is fixedly connected to one end of the threaded rod 24. When the threaded rod 24 rotates, the spiral rod 32 rotates driven by the threaded rod 24, and the material entering the sleeve 33 is transported by the rotating spiral rod 32 until it is transported to the material output port 34 and falls. A weighing bridge is provided below the material output port 34 for real-time weight detection. The weighing bridge accurately measures the weight of the material passing through it, and transmits the weight signal to the weighing controller, thereby finally realizing the quantitative transportation of the material.

[0041] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A screw conveyor with a material quantitative function, comprising a servo motor (1), the servo motor (1) is externally connected to a numerical control system, the output end of the servo motor (1) is connected to a crushing mechanism (2), one end of the crushing mechanism (2) is connected to a screw conveying mechanism (3), characterized in that: The pulverizing mechanism (2) comprises a pulverizing assembly (21). The horizontal position of the pulverizing assembly (21) is higher than that of the spiral conveying mechanism (3). A rotating assembly (22) is arranged below the pulverizing assembly (21). A fixed column (23) is fixedly connected below the rotating assembly (22). There are two fixed columns (23). The two fixed columns (23) are symmetrically distributed along the center of the rotating assembly (22). A threaded rod (24) is arranged between the two fixed columns (23). The threaded rod (24) passes through the center point of the fixed column (23). One end of the threaded rod (24) is fixedly connected to the servo motor (1), and the other end of the threaded rod (24) is fixedly connected to the spiral conveying mechanism (3).

2. A screw conveyor with material quantitative function according to claim 1, characterized in that: The rotating assembly (22) comprises a first rotating device (221) and a second rotating device (222); the top end of the first rotating device (221) is fixedly connected to the bottom end of the crushing assembly (21); both ends of the first rotating device (221) are fixedly connected to the second rotating device (222); a portion of the first rotating device (221) is in a sleeve-connected relationship with a portion of the second rotating device (222).

3. A screw conveyor with material quantitative function according to claim 2, characterized in that: The first rotator (221) comprises a sleeve column (2211), a connecting column (2212) is sleeved inside the sleeve column (2211), a first connecting rod (2216) is symmetrically connected to the side of the connecting column (2212), the bottom of the connecting column (2212) is fixedly connected to a rotating disk (2213), an eccentric connecting column (2214) is fixedly connected to the rotating disk (2213), the eccentric connecting column (2214) is far away from the center of the circle, the eccentric connecting column (2214) is fixedly connected to the rotating disk (2213) and the sleeve ring (2215), the sleeve ring (2215) is sleeved on the sleeve rod (2219), the two ends of the sleeve rod (2219) are fixedly connected to swing arms (2218), and the middle of the two swing arms (2218) is connected to a swing column (2217).

4. A screw conveyor with material quantitative function according to claim 2, characterized in that: The second rotator (222) comprises a gear (2221), the center position of the gear (2221) is fixedly connected to a gear connecting rod (2226), the gear connecting rod (2226) is fixedly connected to a receiving frame (2223), the gear connecting rod (2226) is located at the center line of the receiving frame (2223), the two ends of the gear connecting rod (2226) are sleeved with a third connecting rod (2225), the third connecting rod (2225) is fixedly connected to a connecting round rod (2222), the connecting round rod (2222) is sleeved with a swing arm (2218), the two sides of the receiving frame (2223) are also fixedly connected to a second connecting rod (2224), and the upper surface of the second connecting rod (2224) is fixedly connected to the first connecting rod (2216).

5. A screw conveyor with material quantitative function according to claim 1, characterized in that: The pulverizing assembly (21) comprises a pulverizing material barrel (211), a pulverizing knife column (212) is arranged inside the pulverizing material barrel (211), the bottom end of the pulverizing knife column (212) is fixedly connected to a first gear (213), the bottom end of the first gear (213) is fixedly connected to a receiving column (214), the receiving column (214) passes through the bottom surface of the pulverizing material barrel (211) and is fixedly connected to a second gear (215), the second gear (215) is fixedly connected to a connecting column (2212), a material discharge ladder (216) is provided on the outside of the pulverizing material barrel (211), and the lower end of the material discharge ladder (216) is connected to a spiral conveying mechanism (3) and communicates with the spiral conveying mechanism (3).

6. A screw conveyor with material quantitative function according to claim 5, characterized in that: The crushing blade column (212) comprises a rotating column (2121), the bottom of which passes through the first gear (213) and is connected to the bottom surface of the crushing material barrel (211), and a crushing blade (2122) is fixedly connected to the rotating column (2121), and the edge of the crushing blade (2122) is sharp.

7. A screw conveyor with material quantitative function according to claim 1, characterized in that: The spiral conveying mechanism (3) comprises a sleeve (33), a spiral rod (32) is arranged inside the sleeve (33), a material discharge port (31) is provided on the upper surface of the sleeve (33), the material discharge port (31) is adapted to the end of the material discharge ladder (216), and a material discharge port (34) is provided below the sleeve (33).

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