Metering device for color master batch production

Abstract

The invention discloses a metering device for color master batch production, which comprises an outer shell, a metering cylinder is arranged in an inner cavity of the outer shell, a window is arranged on the surface of the metering cylinder, a vibration structure is arranged in the inner cavity of the outer shell, and a second motor is mounted in the middle of the top end of the metering cylinder. The output end of the second motor is connected with a driving gear, one side of the driving gear is connected with a driven gear, and the bottom of the driven gear is connected with a linkage rod; through the arrangement of a first motor, an eccentric wheel, a movable rod, a first spring and other structures, the transverse reciprocating motion of the whole metering cylinder can be conveniently realized when the metering cylinder is used for storing and metering the color master batches subsequently, so that gaps among the color master batches can be reduced, and the color master batches can be better stored and metered; the distance or the gap between the color master batches is reduced, the overall practicability is higher, and the storage amount is larger.

Description

Technical Field

[0001] The present invention relates to the technical field of masterbatch production, and particularly to a metering device for masterbatch production. Background Art

[0002] Masterbatch, also known as colorant, is a molecular material colorant, also known as pigment preparation. It consists of three basic elements: pigment or dye, carrier, and additive. It is an aggregate obtained by uniformly attaching a constant amount of pigment or dye to resin, and can be called pigment concentrate.

[0003] Existing metering devices for masterbatch production mostly use a cylinder to achieve metering of masterbatch. However, since masterbatch itself is granular and there is no redundant structure inside the existing metering cylinder, when storing and metering masterbatch, when the granular masterbatch is input into the inner side of the metering cylinder, there will be a certain gap between the masterbatch particles, and the sizes of the masterbatch particles are uneven, which will further lead to uneven sizes of the gaps. As a result, the stored amount will decrease during subsequent metering of masterbatch, and it will also affect the subsequent metering of masterbatch, with poor overall practicality. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a metering device for masterbatch production, which can solve the technical problems that existing metering devices for masterbatch production mostly use a cylinder to achieve metering of masterbatch. However, since masterbatch itself is granular and there is no redundant structure inside the existing metering cylinder, when storing and metering masterbatch, when the granular masterbatch is input into the inner side of the metering cylinder, there will be a certain gap between the masterbatch particles, and the sizes of the masterbatch particles are uneven, which will further lead to uneven sizes of the gaps. As a result, the stored amount will decrease during subsequent metering of masterbatch, and it will also affect the subsequent metering of masterbatch, with poor overall practicality.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A metering device for masterbatch production, including an outer shell. A metering cylinder is arranged in the inner cavity of the outer shell, and a viewing window is arranged on the surface of the metering cylinder. A vibration structure is arranged in the inner cavity of the outer shell. A second motor is installed in the middle of the top of the metering cylinder, and the output end of the second motor is connected to a driving gear. One side of the driving gear is connected to a driven gear, and the bottom of the driven gear is connected to a linkage rod. A first spiral blade is sleeved on the outer surface of the linkage rod. A toothed ring is distributed on the side of the driven gear away from the driving gear; The vibration structure includes a movable rod fixedly connected to one side of the top of the metering cylinder, and the other end of the movable rod is connected with a movable block. A first spring is sleeved on the outer surface of the movable rod. A fixed seat is fixedly installed on the side wall of the outer housing, and a first motor is fixedly installed on the top of the fixed seat. The output end of the first motor is connected with an eccentric wheel.

[0006] As a preferred technical solution of the present invention, a lower pressing plate is arranged at the bottom of the inner cavity of the metering cylinder, and one side of the bottom of the lower pressing plate is connected with a lower pressing rod. A second spring is sleeved on the outer surface of the lower pressing rod. A pressure sensor is arranged at the bottom of the inner cavity of the outer housing. When the pressure sensor receives longitudinal pressure, it will transmit data to the control display screen.

[0007] As a preferred technical solution of the present invention, a feeding port is opened on one side of the top of the metering cylinder, and a screening groove is communicated with one side of the feeding port.

[0008] As a preferred technical solution of the present invention, a flow dividing plate is arranged in the inner cavity of the feeding port, and a second spiral blade is connected to the bottom of the flow dividing plate. A sieve plate is distributed below the second spiral blade, and a diversion seat is distributed at one end of the sieve plate away from the second spiral blade. A partition plate is arranged at the bottom of the diversion seat.

[0009] As a preferred technical solution of the present invention, the metering cylinder is slidably connected to the outer housing through the movable rod, and the movable rods are symmetrically distributed along the vertical center line of the metering cylinder.

[0010] As a preferred technical solution of the present invention, the driving gear is meshed with the driven gear through teeth, and the driven gear is meshed with the toothed ring. When the driving gear rotates, it will drive the driven gear to move accordingly, so that the driven gear makes a circular motion along the toothed ring.

[0011] As a preferred technical solution of the present invention, a rotating connection is formed between the linkage rod and the driven gear, and the linkage rods are symmetrically distributed in the inner cavity of the metering cylinder.

[0012] As a preferred technical solution of the present invention, the lower pressing plate is slidably connected to the metering cylinder through the lower pressing rod, and the lower pressing rods are symmetrically distributed along the vertical center line of the lower pressing plate. The arrangement of the lower pressing rods can improve the stability of the lower pressing plate during longitudinal movement.

[0013] As a preferred technical solution of the present invention, the screening groove penetrates through one side of the top of the metering cylinder and is communicated with the outside, and the screening groove and the metering cylinder form an integrated structure. The screening groove is used to discharge screened impurities, particulate matters, etc.

[0014] As a preferred technical solution of the present invention, a plurality of holes are equidistantly arranged on the surface of the flow dividing plate along the center point, and the flow dividing plate is rotatably connected to the second spiral blade. The arrangement of the flow dividing plate can perform a flow dividing process on the masterbatch input into the inner side of the metering cylinder.

[0015] Compared with the prior art, the beneficial effects that the present invention can achieve are: 1. By setting structures such as the first motor, the eccentric wheel, the movable rod, and the first spring, it is convenient to realize the horizontal reciprocating movement of the entire metering cylinder when using the metering cylinder to store and meter the masterbatch subsequently. Thereby, the gap between the masterbatches can be reduced, so as to better store and meter the masterbatch, reduce the distance or gap between the masterbatches, with higher overall practicality and more storage capacity. When the first motor works, the eccentric wheel will rotate accordingly, and then the rotation of the eccentric wheel is used to horizontally push the movable block. Under the action of the movable seat, the movable rod will move horizontally accordingly, realizing the horizontal movement of the metering cylinder. Combining the deformation of the first spring and the rotation of the eccentric wheel when the movable block moves horizontally can realize the horizontal reciprocating movement of the metering cylinder, so as to use the metering cylinder to store and meter more masterbatches; 2. By setting structures such as the second motor, the driving gear, the driven gear, and the toothed ring, the circular motion of the linkage rod inside the metering cylinder can be realized, and at the same time, the movement of the first spiral blade can be realized. Furthermore, the masterbatch input into the metering cylinder can be stirred, so as to better compress the gap between the masterbatches and store and meter more masterbatches. The work of the second motor will cause the driving gear connected to its output end to rotate accordingly. Since the driving gear and the driven gear are meshed through teeth, and the driven gear and the toothed ring are also meshed through teeth, the rotation of the driven gear can be realized by using the rotation of the driving gear. At the same time, the driven gear will perform a circular motion along the toothed ring, so as to facilitate the subsequent movement of the second spiral blade driven by the linkage rod. And the second spiral blade is rotatably connected to the linkage rod, thereby effectively compressing the gap between the masterbatches; 3. By setting the feed port, screening slot and sieve plate and other structures, the masterbatch can be simply filtered when it is input into the inner side of the metering cylinder, so that the larger particles mixed in the masterbatch can be effectively removed to prevent the masterbatch from being mixed with more impurities and affecting the subsequent metering of the masterbatch. The overall practicality is higher. When the masterbatch is input into the inner side of the feed port, it is simply diverted through the diverter plate, and then the second spiral blade can effectively assist the diverted masterbatch to fall onto the surface of the sieve plate under the rotation of the second spiral blade, and then the sieve plate is used to screen the masterbatch. Since there is a certain inclination angle between the sieve plate and the metering cylinder, the screened impurities can be screened out through the screening slot to achieve the purpose of filtering and removing impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a metering device for masterbatch production of the present invention; Figure 2 This is a schematic diagram of the structure of the metering cylinder of the metering device for masterbatch production of the present invention when viewed from above; Figure 3 It is a schematic diagram of the top view of the metering cylinder of the metering device for masterbatch production of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the metering cylinder of the metering device for masterbatch production of the present invention; Figure 5 It is a schematic diagram of the side view of the lower pressure plate of the metering device for masterbatch production of the present invention; Figure 6 The metering device for masterbatch production of the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 7 The metering device for masterbatch production of the present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 8 The figure is a schematic diagram of the side view of the outer shell of the metering device for masterbatch production of the present invention.

[0017] Wherein: 1. outer shell; 2. metering cylinder; 3. window; 4. movable rod; 5. movable block; 6. first spring; 7. fixed seat; 8. first motor; 9. eccentric wheel; 10. second motor; 11. driving gear; 12. driven gear; 13. linkage rod; 14. first spiral blade; 15. gear ring; 16. lower pressure plate; 17. lower pressure rod; 18. second spring; 19. pressure sensor; 20. inlet; 21. sieving slot; 22. diverter plate; 23. second spiral blade; 24. sieve plate; 25. guide seat; 26. partition. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0019] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 8 As shown in the figures, the present invention provides a metering device for masterbatch production, which includes an outer shell 1. A metering cylinder 2 is arranged in the inner cavity of the outer shell 1, and a window 3 is arranged on the surface of the metering cylinder 2. A vibration structure is arranged in the inner cavity of the outer shell 1. The vibration structure includes a movable rod 4 fixedly connected to one side of the top of the metering cylinder 2, and the other end of the movable rod 4 is connected to a movable block 5. A first spring 6 is sleeved on the outer surface of the movable rod 4. A fixed seat 7 is fixedly installed on the side wall of the outer shell 1, and a first motor 8 is fixedly installed on the top of the fixed seat 7. The output end of the first motor 8 is connected to an eccentric wheel 9. A second motor 10 is installed in the middle of the top of the metering cylinder 2, and the output end of the second motor 10 is connected to a driving gear 11. One side of the driving gear 11 is connected to a driven gear 12, and the bottom of the driven gear 12 is connected to a linkage rod 13. A first spiral blade 14 is sleeved on the outer surface of the linkage rod 13. A toothed ring 15 is distributed on the side of the driven gear 12 away from the driving gear 11; When in use, the masterbatch is input into the inner side of the metering cylinder 2 through the opening at the top of the outer shell 1. At the same time, the vibration of the metering cylinder 2 is realized by the operation of the first motor 8, so as to facilitate better subsequent storage and metering processing of the masterbatch, and can effectively reduce the gap between the masterbatches for storing more masterbatches; As a further implementation manner of this embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 8As shown in the figure, a measuring cylinder 2 is arranged in the inner cavity of the outer shell 1, and a window 3 is arranged on the surface of the measuring cylinder 2. A discharge port controlled by an electromagnetic valve to open and close is arranged at the back of the bottom end of the measuring cylinder 2, and the discharge port extends to one side of the outer shell 1. A slide rail for the discharge port to shake is arranged on the back surface of the outer shell 1. The measuring cylinder 2 is slidably connected to the outer shell 1 through a movable rod 4, and the movable rods 4 are symmetrically distributed along the vertical center line of the measuring cylinder 2. A vibration structure is arranged in the inner cavity of the outer shell 1. The vibration structure includes a movable rod 4 fixedly connected to one side of the top end of the measuring cylinder 2, and the other end of the movable rod 4 is connected to a movable block 5. A first spring 6 is sleeved on the outer surface of the movable rod 4. A fixed seat 7 is fixedly installed on the side wall of the outer shell 1, and a first motor 8 is fixedly installed on the top end of the fixed seat 7. The output end of the first motor 8 is connected to an eccentric wheel 9. A second motor 10 is installed in the middle of the top end of the measuring cylinder 2, and the output end of the second motor 10 is connected to a driving gear 11. The driving gear 11 is meshed with a driven gear 12 through teeth, and the driven gear 12 is meshed with a toothed ring 15. One side of the driving gear 11 is connected to a driven gear 12, and the bottom of the driven gear 12 is connected to a linkage rod 13. The linkage rod 13 is rotatably connected to the driven gear 12, and the linkage rods 13 are symmetrically distributed in the inner cavity of the measuring cylinder 2. A first spiral blade 14 is sleeved on the outer surface of the linkage rod 13. A toothed ring 15 is distributed on the side of the driven gear 12 away from the driving gear 11. A lower pressing plate 16 is arranged at the bottom of the inner cavity of the measuring cylinder 2, and one side of the bottom of the lower pressing plate 16 is connected to a lower pressing rod 17. The lower pressing plate 16 is slidably connected to the measuring cylinder 2 through the lower pressing rod 17, and the lower pressing rods 17 are symmetrically distributed along the vertical center line of the lower pressing plate 16. A second spring 18 is sleeved on the outer surface of the lower pressing rod 17. A pressure sensor 19 is arranged at the bottom of the inner cavity of the outer shell 1, and the pressure sensor 19 is electrically connected to a control terminal arranged on the side wall of the outer shell 1; When the masterbatch is input into the inner side of the metering cylinder 2, the first motor 8 starts to work through the control terminal. Then, the first motor 8 works and the eccentric wheel 9 connected to its output end rotates accordingly. Under the rotation of the eccentric wheel 9, the movable block 5 moves horizontally. Then, the horizontally moving movable block 5 squeezes the movable rod 4 fixedly connected to one side of it, so as to horizontally push the metering cylinder 2 by the movable rod 4. At this time, another movable rod 4 arranged on the other side of the metering cylinder 2 also moves horizontally. At the same time, when the movable rod 4 moves horizontally, the movable block 5 squeezes the first spring 6, realizing the deformation of the first spring 6. By using the reverse force generated by the deformation of the first spring 6 and the rotation of the eccentric wheel 9, the horizontal reciprocating motion of the metering cylinder 2 can be realized, and the vibration treatment of the metering cylinder 2 can be realized, so that the masterbatch input into the interior of the metering cylinder 2 can be stored better, and at the same time, the gap existing between the masterbatches can be reduced. When the masterbatch is input into the inner side of the metering cylinder 2, the second motor 10 works and the driving gear 11 connected to its output end rotates accordingly. Since the driving gear 11 is meshed with the driven gear 12 through teeth, the movement of the driven gear 12 can be realized by the rotation of the driving gear 11. And since the other side of the driven gear 12 is meshed with the toothed ring 15 through teeth, the driven gear 12 will move in a circular motion along the toothed ring 15. When the driven gear 12 moves, the linkage rod 13 arranged in the middle of its bottom end will move in a circular motion accordingly, so as to perform a simple stirring treatment on the masterbatch input into the interior of the metering cylinder 2. Combining with the vibration of the metering cylinder 2 can further compress the distance between the masterbatches. Since the linkage rod 13 is rotationally connected to the driven gear 12, the rotation of the first spiral blade 14 can be realized when the linkage rod 13 moves in a circular motion, which is convenient for better stirring treatment of the masterbatch subsequently. At the same time, under the action of gravity, the masterbatch presses down the lower pressing plate 16 arranged at the bottom of the inner cavity of the metering cylinder 2, and then the lower pressing plate 16 squeezes the lower pressing rod 17 fixedly connected to its bottom, and then the lower pressing rod 17 drives the second spring 18 to deform accordingly, and the lower pressing rod 17 squeezes the pressure sensor 19, so as to perform a weighing treatment on the masterbatch stored inside the metering cylinder 2. During weighing, both motors stop moving to prevent affecting the accuracy of subsequent weighing; As a further implementation manner of this embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 7As shown in the figure, a feeding port 20 is provided on one side of the top end of the measuring cylinder 2, and a screening groove 21 is communicated with one side of the feeding port 20. The screening groove 21 penetrates through one side of the top end of the measuring cylinder 2 and is communicated with the outside. The screening groove 21 and the measuring cylinder 2 form an integrated structure. A flow dividing plate 22 is arranged in the inner cavity of the feeding port 20, and a second spiral blade 23 is connected to the bottom of the flow dividing plate 22. A plurality of holes are equidistantly arranged on the surface of the flow dividing plate 22 along the center point. The flow dividing plate 22 and the second spiral blade 23 are rotationally connected. A sieve plate 24 is distributed below the second spiral blade 23, and a diversion seat 25 is distributed at one end of the sieve plate 24 away from the second spiral blade 23. The size of the holes formed on the surface of the sieve plate 24 allows the masterbatch to flow through. A partition plate 26 is arranged at the bottom of the diversion seat 25; When the masterbatch is input into the inner side of the feeding port 20, the plurality of holes equidistantly arranged on the surface of the flow dividing plate 22 along the center point can be used to simply divide the masterbatch input into the measuring cylinder 2. Subsequently, the masterbatch enters the inner side of the feeding port 20. Since the second spiral blade 23 and the flow dividing plate 22 are rotationally connected, the rotation of the second spiral blade 23 will be realized when the masterbatch is input into the inner side of the feeding port 20. The rotating second spiral blade 23 is used to achieve the purpose of auxiliary feeding. Then, the divided masterbatch falls onto the surface of the sieve plate 24. Since a plurality of sieve holes are arranged on the surface of the sieve plate 24 and the sieve plate 24 and the measuring cylinder 2 are inclined, the impurity particles doped in the masterbatch can be effectively removed by using the plurality of sieve holes arranged. The screened impurities will be discharged through the screening groove 21 to achieve the purpose of impurity removal. Subsequently, the masterbatch after screening treatment is input into the inner side of the measuring cylinder 2 along the plurality of holes formed on the surface of the diversion seat 25, which is convenient for subsequent metering treatment of the masterbatch; Specific working principle: During use, first input the masterbatch into the inner side of the feeding port 20. Then, utilize the multiple holes equidistantly opened along the center point on the surface of the shunt plate 22 to simply shunt the masterbatch input into the metering cylinder 2. Subsequently, the masterbatch enters the inner side of the feeding port 20. Since the second spiral blade 23 is rotatably connected to the shunt plate 22, when the masterbatch is input into the inner side of the feeding port 20, the second spiral blade 23 will rotate. Use the rotating second spiral blade 23 to achieve the purpose of auxiliary feeding. Then, the shunted masterbatch falls onto the surface of the sieve plate 24. Since there are multiple sieve holes on the surface of the sieve plate 24 and the sieve plate 24 is inclined with respect to the metering cylinder 2, the multiple sieve holes can be used to effectively remove the impurity particles doped in the masterbatch. The sieved impurities will be discharged through the sieve-out groove 21 to achieve the purpose of impurity removal. Subsequently, the masterbatch after sieving is input into the inner side of the metering cylinder 2 along the multiple holes opened on the surface of the guide seat 25, facilitating subsequent metering of the masterbatch. When the masterbatch is input into the inner side of the metering cylinder 2, the first motor 8 starts to work through the control terminal. Then, when the first motor 8 works, the eccentric wheel 9 connected to its output end rotates accordingly. Under the rotation of the eccentric wheel 9, the movable block 5 will move horizontally. Then, the horizontally moving movable block 5 presses the movable rod 4 fixedly connected to one side thereof, thereby horizontally pushing the metering cylinder 2 by the movable rod 4. At this time, another movable rod 4 provided on the other side of the metering cylinder 2 also moves horizontally. At the same time, when the movable rod 4 moves horizontally, the movable block 5 will press the first spring 6, causing deformation of the first spring 6. Utilize the reverse force generated by the deformation of the first spring 6 and the rotation of the eccentric wheel 9 to achieve the horizontal reciprocating movement of the metering cylinder 2, realizing the vibration treatment of the metering cylinder 2, so as to better store the masterbatch input into the metering cylinder 2 and at the same time reduce the gap existing between the masterbatch particles. When the masterbatch is input into the inner side of the metering cylinder 2, the second motor 10 works and the driving gear 11 connected to its output end rotates accordingly. Since the driving gear 11 is meshed with the driven gear 12 through teeth, the rotation of the driving gear 11 will cause the movement of the driven gear 12. And since the other side of the driven gear 12 is meshed with the toothed ring 15 through teeth, the driven gear 12 will perform a circular motion along the toothed ring 15. When the driven gear 12 moves, it will drive the linkage rod 13 provided in the middle of its bottom end to perform a circular motion accordingly, thereby simply stirring the masterbatch input into the metering cylinder 2. Combining with the vibration of the metering cylinder 2 can further compress the distance between the masterbatch particles. Since the linkage rod 13 is rotatably connected to the driven gear 12, when the linkage rod 13 performs a circular motion, the first spiral blade 14 will rotate, facilitating subsequent better stirring of the masterbatch. At the same time, under the action of gravity, the masterbatch will press down the lower pressing plate 16 provided at the bottom of the inner cavity of the metering cylinder 2.Furthermore, the lower pressing plate 16 presses the lower pressing rod 17 fixedly connected to its bottom. Then, the lower pressing rod 17 drives the second spring 18 to deform accordingly, and the lower pressing rod 17 presses the pressure sensor 19. Thus, the masterbatch stored inside the metering cylinder 2 can be weighed. During weighing, both motors stop to prevent affecting the accuracy of subsequent weighing.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A metering device for masterbatch production, comprising an outer shell (1), characterized in that: The inner cavity of the outer shell (1) is provided with a metering cylinder (2), and a window (3) is provided on the surface of the metering cylinder (2); the inner cavity of the outer shell (1) is provided with a vibration structure; a second motor (10) is installed in the middle of the top end of the metering cylinder (2); the output end of the second motor (10) is connected to a driving gear (11); one side of the driving gear (11) is connected to a driven gear (12); the bottom of the driven gear (12) is connected to a linkage rod (13); the outer surface of the linkage rod (13) is sleeved with a first spiral leaf (14); and a gear ring (15) is distributed on the side of the driven gear (12) away from the driving gear (11); The vibration structure comprises a movable rod (4) fixedly connected to one side of the top end of the metering cylinder (2), and the other end of the movable rod (4) is connected to a movable block (5), the outer surface of the movable rod (4) is sleeved with a first spring (6), the side wall of the outer shell (1) is fixedly mounted with a fixing seat (7), and the top end of the fixing seat (7) is fixedly mounted with a first motor (8), and the output end of the first motor (8) is connected to an eccentric wheel (9).

2. A metering device for masterbatch production according to claim 1, characterized in that: A lower pressure plate (16) is arranged at the bottom of the inner cavity of the metering cylinder (2), and a lower pressure rod (17) is connected to one side of the bottom of the lower pressure plate (16). A second spring (18) is sleeved on the outer surface of the lower pressure rod (17). A pressure sensor (19) is arranged at the bottom of the inner cavity of the outer shell (1).

3. A metering device for masterbatch production according to claim 1, characterized in that: A material inlet (20) is provided on one side of the top end of the metering cylinder (2), and a screening groove (21) is connected to one side of the material inlet (20).

4. A metering device for masterbatch production according to claim 3, characterized in that: The inner cavity of the feed port (20) is provided with a flow divider plate (22), and the bottom of the flow divider plate (22) is connected to a second spiral leaf (23), a sieve plate (24) is distributed below the second spiral leaf (23), and a flow guide seat (25) is distributed at one end of the sieve plate (24) away from the second spiral leaf (23), and a partition plate (26) is provided at the bottom of the flow guide seat (25).

5. A metering device for masterbatch production according to claim 1, characterized in that: The metering cylinder (2) is slidably connected to the outer shell (1) via the movable rod (4), and the movable rod (4) is symmetrically distributed along the vertical center line of the metering cylinder (2).

6. A metering device for masterbatch production according to claim 1, characterized in that: The driving gear (11) is meshedly connected with the driven gear (12) via teeth, and the driven gear (12) is meshedly connected with the gear ring (15).

7. A metering device for masterbatch production according to claim 1, characterized in that: The linkage rod (13) and the driven gear (12) are rotationally connected, and the linkage rod (13) is symmetrically distributed in the inner cavity of the metering cylinder (2).

8. A metering device for masterbatch production according to claim 2, characterized in that: The lower pressing plate (16) is slidably connected to the metering cylinder (2) via the lower pressing rod (17), and the lower pressing rod (17) is symmetrically distributed along the vertical center line of the lower pressing plate (16).

9. A metering device for masterbatch production according to claim 3, characterized in that: The screening groove (21) penetrates through one side of the top end of the metering cylinder (2) and is in communication with the outside, and the screening groove (21) and the metering cylinder (2) form an integrated structure.

10. A metering device for masterbatch production according to claim 4, characterized in that: The surface of the diverter plate (22) is provided with a plurality of holes equidistantly along the center point, and the diverter plate (22) and the second spiral blade (23) are rotationally connected.

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