Anti-blocking mechanism of granulator

By combining an air guide pipe and an air jet nozzle, compressed air is used to clean the mesh of the pellet mill feed pipe in a non-contact manner, which solves the problem of clogging by sticky materials and achieves efficient cleaning and protection of the screen cylinder.

CN223490899UActive Publication Date: 2025-10-31HEILONGJIANG CHUNHUA QIUSHI GRAIN & OIL CO LTD
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Patent Information

Application Number
CN202422786000.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-10-31
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

When processing viscous materials, the screen cylinder holes of existing pellet mills are prone to clogging. Traditional brush cleaning methods can easily damage the screen cylinder and are not very effective.

Method used

The system uses a combination of air guide pipe and jet nozzle to clean the mesh of the feed pipe in a non-contact manner with compressed air. The air guide pipe is rotated periodically by rotating the mounting ring to blow away residual impurities.

Benefits of technology

It effectively prevents the feed pipe from clogging, avoids scratches on the screen cylinder surface, and improves cleaning efficiency and equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an anti-blocking mechanism of a granulator, which comprises a granulator body and a feed pipe, an anti-blocking component is mounted on the feed pipe, a mounting ring is connected with the feed pipe through a bearing, an air guide pipe is fixedly connected in a limiting groove of the mounting ring, air nozzles are uniformly distributed along the air guide pipe, and the air nozzles are arranged on the feed pipe. The air spraying head is perpendicular to the meshes in the feeding pipe, the locking piece is used for fixing the using position of the mounting ring, the air guide pipe is connected with an external compressed air pipe, compressed air enters the air guide pipe and is blown into the meshes of the feeding pipe through the air spraying head, and the feeding pipe is connected with the air guide pipe through the locking piece. And then the bearing rotates the mounting ring to drive the air guide pipe to periodically rotate around the feeding pipe, so that impurities left in the meshes of the feeding pipe are blown off, the meshes of the feeding pipe are cleaned, compressed air is used for cleaning the meshes of the feeding pipe, a traditional brush cleaning mode is changed, and scratches on the surface of the feeding pipe are prevented.
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Description

Technical Field

[0001] This utility model relates to the field of granulator technology, and in particular to an anti-clogging mechanism for a granulator. Background Technology

[0002] Rotary granulators are widely used in the pharmaceutical, food, powdered medicine, chemical, and solid beverage industries. They are mainly used to form the required granules from well-mixed materials, and are particularly suitable for materials with high viscosity. The working principle of the equipment is to add the mixed materials into the feed cylinder, and the materials pass through the holes of the screen cylinder under the pressure of the rotating blades, thereby forming granules.

[0003] The size of the particles is controlled by the screen cylinder holes. Sticky materials tend to stick to the screen cylinder holes, causing blockage. Usually, a brush is used to manually clean the screen cylinder holes to prevent material from clogging them. However, soft brush bristles can easily remain in the screen cylinder holes during cleaning, while hard brushes can easily damage the surface of the screen cylinder. Therefore, we propose an anti-clogging mechanism for the granulator. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-clogging mechanism for a granulator. This anti-clogging mechanism connects the air guide pipe to an external compressed air pipe and uses compressed air to perform non-contact cleaning of the mesh of the feed pipe, preventing scratches from appearing on the surface of the feed pipe.

[0005] This utility model provides an anti-clogging mechanism for a granulator, including a granulator body and a feed pipe, wherein an anti-clogging component is installed on the feed pipe, and the anti-clogging component uses compressed air to perform non-contact unblocking of the mesh on the feed pipe;

[0006] The anti-clogging component includes a mounting ring, an air duct, an air jet head, and a locking element;

[0007] The mounting ring is connected to the feed pipe via a bearing. The air guide pipe is fixedly connected to the limiting groove of the mounting ring. The jet nozzles are evenly distributed along the air guide pipe. The jet nozzles and the mesh on the feed pipe are vertically arranged. The locking member is used to fix the position of the mounting ring.

[0008] Preferably, a feeding assembly is installed on the feeding pipe;

[0009] The feeding assembly includes a feeding shell, a slide bar, a insert plate, a partition plate, a connecting plate, a reset component, and a driving component;

[0010] The bottom discharge hole of the feed housing is connected to the feed pipe. The slide rod is inserted into the through hole of the feed housing. The insert plate is fixedly connected to one end of the slide rod located in the cavity of the feed housing. The connecting plate is fixedly connected to the end of the slide rod away from the feed housing. A spacer plate is inserted between adjacent insert plates. The spacer plate is fixedly connected to the side of the feed housing away from the slide rod. The reset member is used to drive the connecting plate to reset. The driving member is used to push the connecting plate to move laterally.

[0011] Preferably, the reset component includes a push rod, a cylinder, a baffle, and an elastic element;

[0012] One end of the push rod is fixedly connected to the connecting plate, and the other end of the push rod is inserted into the cavity of the cylinder. The baffle is fixedly connected to the end of the cylinder away from the push rod, and the end of the baffle away from the cylinder is fixedly connected to the feed shell. The elastic element is inserted into the cavity of the cylinder and is located between the push rod and the baffle.

[0013] Preferably, the driving component includes a connector, a motor, a rotating shaft, and a cam;

[0014] The motor is connected to the granulator body via the connector, the rotating shaft is fixedly connected to the output end of the motor, the cam is fixedly connected to the end of the rotating shaft away from the motor, and the outer periphery of the cam abuts against the connecting plate.

[0015] Preferably, the connector includes a U-shaped bracket and bolts;

[0016] The top of the U-shaped frame is fixedly connected to the motor, and the U-shaped frame is connected to the pellet mill body by bolts.

[0017] Preferably, the locking element includes a lug and a positioning pin;

[0018] The bottom end of the ear plate is fixedly connected to the mounting ring, and the ear plate is connected to the feed pipe through the positioning pin.

[0019] Preferably, a flange is fixedly connected to the top end of the air guide pipe, and the flange is used to connect to an external compressed air pipeline.

[0020] Preferably, the connecting plate has an arc-shaped protrusion on the side away from the slide rod.

[0021] Preferably, the elastic element is a compression spring.

[0022] Preferably, the insert plate and the spacer plate are arranged alternately.

[0023] This utility model provides an improved anti-clogging mechanism for a granulator, which has the following improvements and advantages compared with the prior art:

[0024] By using the granulator body, feed pipe, mounting ring, air guide pipe, jet nozzle, locking parts, etc., when cleaning the residue stuck in the feed pipe mesh, the air guide pipe is connected to an external compressed air pipe. Compressed air enters the air guide pipe and is blown into the feed pipe mesh through the jet nozzle. Then, the mounting ring rotates through the bearing, causing the air guide pipe to rotate periodically around the feed pipe, thereby blowing off the impurities remaining in the feed pipe mesh and cleaning the feed pipe mesh. Using compressed air to clean the feed pipe mesh changes the traditional brush cleaning method and prevents scratches on the surface of the feed pipe. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the feed pipe, mounting ring, and air guide pipe in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the feed shell, slide bar, and partition plate in this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the cylinder, the push rod, and the elastic element in this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the cam, shaft and motor in this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1-Pelletizer body, 11-Feed pipe, 2-Anti-clogging component, 21-Mounting ring, 22-Air guide pipe, 221-Flange, 23-Air jet head, 24-Locking component, 241-Ear plate, 242-Positioning pin, 3-Feeding component, 31-Feeding shell, 32-Slide rod, 33-Insert plate, 34-Spare plate, 35-Connecting plate, 36-Reset component, 361-Top rod, 362-Cylinder, 363-Baffle, 364-Elastic component, 37-Drive component, 371-Connecting component, 371a-U-shaped frame, 371b-Bolt, 372-Motor, 373-Rotating shaft, 374-Cam. Detailed Implementation

[0033] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this embodiment, as Figure 1 and Figure 2As shown, an anti-clogging mechanism for a pellet mill includes a pellet mill body 1 and a feed pipe 11. An anti-clogging component 2 is installed on the feed pipe 11. The anti-clogging component 2 uses compressed air to unclog the mesh on the feed pipe 11 in a non-contact manner. The anti-clogging component 2 includes a mounting ring 21, an air guide pipe 22, an air jet head 23, and a locking member 24. The mounting ring 21 is connected to the feed pipe 11 through a bearing. The air guide pipe 22 is fixedly connected in the limiting groove of the mounting ring 21. The air jet head 23 is evenly distributed along the air guide pipe 22. The air jet head 23 is perpendicular to the mesh on the feed pipe 11. The locking member 24 is used to fix the position of the mounting ring 21.

[0037] Therefore, when cleaning the residue retained in the mesh of the feed pipe 11, the air guide pipe 22 is connected to the external compressed air pipe. Compressed air enters the air guide pipe 22 and is blown into the mesh of the feed pipe 11 through the jet nozzle 23. Then, the mounting ring 21 is rotated by the bearing, and the mounting ring 21 drives the air guide pipe 22 to rotate periodically around the feed pipe 11, thereby blowing off the impurities remaining in the mesh of the feed pipe 11 to clean the mesh of the feed pipe 11 and prevent the feed pipe 11 in the pellet mill body 1 from becoming blocked.

[0038] Furthermore, the feed pipe 11 is used to convey materials into the pellet mill body 1. There are discharge mesh holes distributed on the outer periphery of the feed pipe 11. The mounting ring 21 can rotate along the outer periphery of the feed pipe 11. The air guide pipe 22 is connected to the external compressed air pipe. Multiple jet nozzles 23 are provided, and the jet nozzles 23 are arranged along the vertical direction of the air guide pipe 22. The jet nozzles 23 and the mesh holes on the feed pipe 11 are arranged vertically to facilitate compressed air blowing towards the feed pipe 11. When the mounting ring 21 does not need to rotate, the locking member 24 is used to fix the mounting ring 21.

[0039] In some embodiments, such as Figure 3 and Figure 4 As shown, a feeding assembly 3 is installed on the feeding pipe 11. The feeding assembly 3 includes a feeding shell 31, a slide rod 32, an insert plate 33, a spacer plate 34, a connecting plate 35, a reset component 36, and a driving component 37. The bottom discharge hole of the feeding shell 31 is connected to the feeding pipe 11. The slide rod 32 is inserted into the through hole of the feeding shell 31. The insert plate 33 is fixedly connected to one end of the slide rod 32 located in the cavity of the feeding shell 31. The connecting plate 35 is fixedly connected to the end of the slide rod 32 away from the feeding shell 31. A spacer plate 34 is inserted between adjacent insert plates 33. The spacer plate 34 is fixedly connected to the side of the feeding shell 31 away from the slide rod 32. The reset component 36 is used to drive the connecting plate 35 to reset. The driving component 37 is used to push the connecting plate 35 to move laterally.

[0040] Furthermore, the bottom of the feed shell 31 is machined with a discharge port, the slide bar 32 slides laterally in the through hole on the side wall of the feed shell 31, the insert plate 33 is located between adjacent partition plates 34, and the connecting plate 35 connects multiple slide bars 32 together, and the connecting plate 35 drives multiple slide bars 32 to move laterally together. When the material is put into the feed shell 31, the staggered partition plates 34 and insert plates 33 disperse the material to prevent the material from clumping.

[0041] In some embodiments, such as Figure 4 As shown, the reset component 36 includes a push rod 361, a cylinder 362, a baffle 363, and an elastic element 364. One end of the push rod 361 is fixedly connected to the connecting plate 35, and the other end of the push rod 361 is inserted into the cavity of the cylinder 362. The baffle 363 is fixedly connected to the end of the cylinder 362 away from the push rod 361, and the end of the baffle 363 away from the cylinder 362 is fixedly connected to the feed shell 31. The elastic element 364 is inserted into the cavity of the cylinder 362 and is located between the push rod 361 and the baffle 363.

[0042] Furthermore, when the push rod 361 moves in the cavity of the cylinder 362, it drives the connecting plate 35 to move. The baffle 363 is used to fix the cylinder 362 and the feed shell 31. The elastic potential energy of the elastic element 364 drives the push rod 361 to reset in the cylinder 362, and then the push rod 361 drives the connecting plate 35 to reset.

[0043] In some embodiments, such as Figure 5 As shown, the drive unit 371 includes a connector 371, a motor 372, a rotating shaft 373, and a cam 374. The motor 372 is connected to the pellet mill body 1 through the connector 371. The rotating shaft 373 is fixedly connected to the output end of the motor 372. The cam 374 is fixedly connected to the end of the rotating shaft 373 away from the motor 372. The outer periphery of the cam 374 abuts against the connecting plate 35.

[0044] Furthermore, the connector 371 is used to fix the position of the motor 372 on the pellet mill body 1, and the rotating shaft 373 is used to drive the cam 374 to rotate, and the rotation of the cam 374 pushes the connecting plate 35 to shift.

[0045] In some embodiments, such as Figure 5 As shown, the connector 371 includes a U-shaped frame 371a and a bolt 371b. The top end of the U-shaped frame 371a is fixedly connected to the motor 372, and the U-shaped frame 371a is connected to the pellet mill body 1 by the bolt 371b.

[0046] Furthermore, the top of the U-shaped frame 371a is used to support the motor 372, and the bolts 371b are used to connect the U-shaped frame 371a and the pellet mill body 1.

[0047] In some embodiments, such as Figure 2As shown, the locking member 24 includes an ear plate 241 and a positioning pin 242. The bottom end of the ear plate 241 is fixedly connected to the mounting ring 21, and the ear plate 241 is connected to the feed tube 11 through the positioning pin 242.

[0048] Furthermore, the ear plate 241 and the mounting ring 21 are arranged vertically, the outer wall of the positioning pin 242 is machined with threads, and the feed pipe 11 is machined with a groove that matches the positioning pin 242.

[0049] In some embodiments, such as Figure 1 As shown, a flange 221 is fixedly connected to the top end of the air duct 22. The flange 221 is used to connect to an external compressed air pipeline.

[0050] Furthermore, the design of flange 221 makes the connection between the external compressed air pipeline and air guide pipe 22 more convenient.

[0051] In some embodiments, such as Figure 5 As shown, the side of the connecting plate 35 away from the slide bar 32 is machined with an arc-shaped protrusion.

[0052] Furthermore, the arc-shaped protrusion on the connecting plate 35 facilitates its contact with the cam 374, allowing the cam 374 to push the connecting plate 35 to move laterally.

[0053] In some embodiments, such as Figure 4 As shown, elastic element 364 is a compression spring.

[0054] Furthermore, the elastic element 364 is designed as a compression spring to facilitate the reset of the push rod 361 within the cylinder 362.

[0055] In some embodiments, such as Figure 3 As shown, the insert plate 33 and the spacer plate 34 are arranged alternately.

[0056] Furthermore, with the insert plate 33 and the partition plate 34 arranged alternately, the material fed into the feed shell 31 can be squeezed and dispersed.

[0057] The working principle of this application is illustrated below with a preferred embodiment:

[0058] The motor 372 is started, and the motor 372 drives the cam 374 to rotate via the shaft 373. The protruding part of the cam 374 contacts the protruding part of the connecting plate 35, and the cam 374 pushes the connecting plate 35 to move laterally. As the sliding rod 32 moves laterally with the connecting plate 35, the insert plate 33 on the sliding rod 32 moves in the gap between the partition plates 34. When the cam 374 and the connecting plate 35 separate, the elastic element 364 drives the push rod 361 to reset in the cylinder 362, feeding the material into the feed shell 31. The reciprocating motion of the insert plate 33, in conjunction with the partition plates 34, disperses the material, allowing it to pass through... The bottom of the feed shell 31 enters the feed pipe 11 for processing. Under the pressure of the rotating grinding blade in the feed pipe 11, the material passes through the mesh of the feed pipe 11 and forms particles. The air guide pipe 22 is connected to the external compressed air pipe. Compressed air enters the air guide pipe 22 and is blown into the mesh of the feed pipe 11 through the jet head 23. The positioning pin 242 in the rotating ear plate 241 separates from the feed pipe 11. Then, the bearing rotating mounting ring 21 drives the air guide pipe 22 to rotate periodically around the feed pipe 11, thereby blowing off the impurities remaining in the mesh of the feed pipe 11 to clear the mesh of the feed pipe 11.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An anti-clogging mechanism for a pellet mill, comprising a pellet mill body (1) and a feed pipe (11), characterized in that, An anti-clogging component (2) is installed on the feed pipe (11). The anti-clogging component (2) uses compressed air to unclog the mesh on the feed pipe (11) in a non-contact manner. The anti-clogging component (2) includes a mounting ring (21), an air duct (22), an air nozzle (23), and a locking element (24); The mounting ring (21) is connected to the feed pipe (11) via a bearing. The air guide pipe (22) is fixedly connected to the limiting groove of the mounting ring (21). The jet nozzles (23) are evenly distributed along the air guide pipe (22). The mesh on the jet nozzles (23) and the feed pipe (11) is vertically arranged. The locking member (24) is used to fix the position of the mounting ring (21).

2. The anti-clogging mechanism for a granulator according to claim 1, characterized in that, The feed pipe (11) is equipped with a feed assembly (3); The feeding assembly (3) includes a feeding shell (31), a slide bar (32), an insert plate (33), a partition plate (34), a connecting plate (35), a reset component (36), and a driving component (37); The bottom discharge hole of the feed shell (31) is connected to the feed pipe (11). The slide rod (32) is inserted into the through hole of the feed shell (31). The insert plate (33) is fixedly connected to one end of the slide rod (32) located in the cavity of the feed shell (31). The connecting plate (35) is fixedly connected to one end of the slide rod (32) away from the feed shell (31). A spacer plate (34) is inserted between adjacent insert plates (33). The spacer plate (34) is fixedly connected to the side of the feed shell (31) away from the slide rod (32). The reset member (36) is used to drive the connecting plate (35) to reset. The driving member (37) is used to push the connecting plate (35) to move laterally.

3. The anti-clogging mechanism for a granulator according to claim 2, characterized in that, The reset component (36) includes a push rod (361), a cylinder (362), a baffle (363), and an elastic component (364); One end of the push rod (361) is fixedly connected to the connecting plate (35), and the other end of the push rod (361) is inserted into the cavity of the cylinder (362). The baffle (363) is fixedly connected to the end of the cylinder (362) away from the push rod (361), and the end of the baffle (363) away from the cylinder (362) is fixedly connected to the feed shell (31). The elastic element (364) is inserted into the cavity of the cylinder (362) and is located between the push rod (361) and the baffle (363).

4. The anti-clogging mechanism for a granulator according to claim 2, characterized in that, The drive unit (37) includes a connector (371), a motor (372), a rotating shaft (373), and a cam (374); The motor (372) is connected to the pellet mill body (1) through the connector (371), the rotating shaft (373) is fixedly connected to the output end of the motor (372), the cam (374) is fixedly connected to the end of the rotating shaft (373) away from the motor (372), and the outer periphery of the cam (374) abuts against the connecting plate (35).

5. The anti-clogging mechanism for a granulator according to claim 4, characterized in that, The connector (371) includes a U-shaped bracket (371a) and a bolt (371b); The top of the U-shaped frame (371a) is fixedly connected to the motor (372), and the U-shaped frame (371a) is connected to the pellet mill body (1) by the bolt (371b).

6. The anti-clogging mechanism for a granulator according to claim 1, characterized in that, The locking element (24) includes a lug (241) and a positioning pin (242); The bottom end of the ear plate (241) is fixedly connected to the mounting ring (21), and the ear plate (241) is connected to the feed pipe (11) through the positioning pin (242).

7. The anti-clogging mechanism for a granulator according to claim 1, characterized in that, A flange (221) is fixedly connected to the top end of the air guide pipe (22), and the flange (221) is used to connect to an external compressed air pipeline.

8. The anti-clogging mechanism for a granulator according to claim 2, characterized in that, The connecting plate (35) has an arc-shaped protrusion on the side away from the slide bar (32).

9. The anti-clogging mechanism for a granulator according to claim 3, characterized in that, The elastic element (364) is a compression spring.

10. The anti-clogging mechanism for a granulator according to claim 2, characterized in that, The insert plate (33) and the spacer plate (34) are arranged alternately.