Modularized quick-release screen device of oscillating granulator

The modular quick-release screen device solves the problem of needing to stop the machine when changing the screen in the dual-shaft gyratory granulator, realizing convenient installation and disassembly of the screen, improving work efficiency and ensuring continuous operation and energy saving of the equipment.

CN224071907UActive Publication Date: 2026-04-03YANTAI JUXIAN PHARMA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing twin-shaft oscillating granulator requires shutdown when changing the screen, which affects work efficiency.

Method used

A modular quick-release screen device was designed. The feed hopper is separated by a partition, which allows the screen to be replaced without stopping the machine. The screen can be easily installed and removed by an arc-shaped mounting plate and mounting bolts. Combined with the transmission and positioning components, the stability of the screen and energy-saving operation are ensured.

Benefits of technology

Modular disassembly and installation of the screen has been achieved, which has improved work efficiency, reduced downtime, and ensured continuous operation and energy saving of the equipment.

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Abstract

The utility model provides a modular quick-release screen device of a swinging granulator, which belongs to the technical field of swinging granulators and comprises a supporting seat, a case is fixedly arranged on the right side of the upper surface of the supporting seat, a feed hopper is fixedly arranged above the outer side surface of the case, and two arc-shaped screens are arranged at the bottom of the feed hopper in a penetrating manner. Two rotary scraping assemblies are rotationally arranged above the outer side surface of the case; according to the swing granulator, the partition plates are arranged, when a certain arc-shaped screen needs to be replaced, the partition plates are inserted into the sliding grooves in the left side and the right side of the feeding hopper, the effect of separating the two sides of the feeding hopper is achieved, raw materials are not added on the side where the arc-shaped screen needs to be replaced, materials do not need to be added on the side where the arc-shaped screen needs to be replaced, and the swing granulator continues to work; and manufactured particles fall off from one side of the arc-shaped screen, so that modular disassembly of the arc-shaped screen is realized, shutdown is not needed when the arc-shaped screen is replaced, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of gyratory pellet mill technology, and in particular to a modular quick-release screen device for a gyratory pellet mill. Background Technology

[0002] A gyratory granulator is a widely used piece of equipment in the pharmaceutical, chemical, and food industries. It is primarily used to granulate moist, powdery materials. The gyratory granulator utilizes the periodic gyratory motion of a rotating drum to compact the material within the drum and form granules through a screen. A motor drives the rotating drum to rotate, and the gyratory motion of the mold inside the drum ensures the material is evenly distributed and compacted. The material enters through the feed inlet and, through the rotation and gyratory motion, is compacted into granules within the grooves of the mold.

[0003] Oscillating pellet mills are divided into single-shaft oscillating pellet mills and double-shaft oscillating pellet mills. Double-shaft oscillating pellet mills are usually equipped with two screens. When a screen on a double-shaft oscillating pellet mill needs to be replaced, both shafts of the double-shaft pellet mill need to stop working to replace the screen, which affects work efficiency.

[0004] For example, in the prior art, the patent with authorization announcement number CN220276915U discloses a swing pellet mill. The arc-shaped screens of the two rolling units of this device are integrated. When replacing them, the machine needs to be stopped. Moreover, the feed hopper of this device will affect the replacement of the screens, thus affecting the working efficiency. Therefore, a modular quick-release screen device for a swing pellet mill is designed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology, and to propose a modular quick-release screen device for a gyratory pellet mill.

[0006] The technical problem to be solved by this utility model is to provide a modular quick-release screen device for a gyratory pellet mill, which solves the problem in the prior art that when a screen needs to be replaced in a twin-shaft pellet mill, the machine needs to be stopped to replace the screen, which affects the working efficiency.

[0007] This utility model provides a modular quick-release screen device for a gyratory pellet mill, including a support base, a housing, a feed hopper, an arc-shaped screen, a rotating scraper assembly, and a partition. The housing is fixedly installed on the right side of the upper surface of the support base. The feed hopper is fixedly installed above the outer surface of the housing. Two arc-shaped screens are installed through the bottom of the feed hopper. Two rotating scraper assemblies are rotatably installed above the outer surface of the housing. A drive motor is installed inside the housing. The output end of the drive motor is connected to one of the rotating scraper assemblies. A linkage assembly is installed at the outer ends of the two rotating scraper assemblies. Slide grooves are opened on both the left and right sides of the center of the feed hopper, and partitions are slidably installed in the slide grooves.

[0008] Preferably, the rotating scraper assembly includes multiple scrapers and fixed disks at the left and right ends of the multiple scrapers, with the scrapers positioned away from the center of the fixed disks.

[0009] Preferably, the arc-shaped screen includes an arc-shaped mounting plate and mounting bolts. The arc-shaped mounting plate is fixedly installed on the outer side of the right end of the arc-shaped screen, and multiple mounting bolts are threaded onto the arc-shaped mounting plate.

[0010] Preferably, the left side surface of the chassis has multiple mounting holes that match the mounting bolts.

[0011] Preferably, a positioning component for positioning the arc-shaped screen is installed on the left side of the feed hopper. The positioning component includes a screw that is rotatably mounted on the lower left end of the feed hopper via a bearing. A connecting plate is threaded onto the upper part of the screw, and an arc-shaped positioning plate is fixedly mounted on the bottom of the connecting plate.

[0012] Preferably, when the right side surface of the connecting plate is attached to the surface of the feed hopper, the arc-shaped positioning plate extends into the lower left side of the arc-shaped screen, and the diameter of the arc-shaped positioning plate is equal to the diameter of the arc-shaped screen.

[0013] Preferably, the linkage component includes a drive pulley fixed to the left end of the outer rotating scraper assembly and a driven pulley fixed to the left end of the inner scraper assembly, and a transmission belt is sleeved between the drive pulley and the driven pulley.

[0014] Preferably, a material collection hopper is fixedly installed below the outer surface of the casing, and there is a distance between the material collection hopper and the arc-shaped screen.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] 1. This utility model features a partition. When a curved screen needs to be replaced, the partition is inserted into the sliding grooves on both sides of the feed hopper, effectively separating the two sides of the feed hopper. The side requiring replacement of the curved screen does not need to add raw materials, while the side not requiring replacement does. The oscillating pellet mill continues to operate, and the produced pellets fall from the side where the curved screen does not need replacement. This modular design enables the disassembly of the curved screen, eliminating the need to stop the machine when replacing the curved screen and increasing work efficiency.

[0017] 2. This utility model is equipped with an arc-shaped mounting plate and mounting bolts. When installing the arc-shaped screen, simply align the mounting bolts on the arc-shaped mounting plate with the mounting holes inside the machine box and tighten the mounting bolts to achieve the installation of the arc-shaped screen. The installation and disassembly are convenient.

[0018] 3. This utility model is equipped with a positioning component. After the arc-shaped screen is installed, by rotating the screw, the screw drives the connecting plate to move to one side of the feed hopper, so that the arc-shaped positioning plate extends into the lower left side of the arc-shaped screen, thereby achieving the effect of supporting the lower left side of the arc-shaped screen 4 and ensuring the stability of the arc-shaped screen after installation.

[0019] 4. This utility model is equipped with a transmission component. The drive motor drives the outer rotating scraper component to rotate back and forth, which causes the drive pulley to rotate back and forth. The drive pulley drives the driven pulley and the inner rotating scraper component to rotate through the transmission belt. A single motor can drive two scraper components to rotate, which is more energy-efficient.

[0020] 5. This utility model is equipped with a collection hopper, which can collect the granular material extruded from the arc-shaped screen, making it convenient for subsequent bagging. Moreover, there is a distance between the collection hopper and the arc-shaped screen, so the collection hopper will not affect the disassembly and installation of the arc-shaped screen. Attached Figure Description

[0021] 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. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a top view of the cross-sectional structure of this utility model.

[0024] Figure 3 This is a three-dimensional structural diagram of the rotating scraper assembly of this utility model.

[0025] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0026] Figure 5 This utility model Figure 1 Enlarged structural diagram at point B.

[0027] [Figure Labels]

[0028] 1. Support base; 2. Chassis; 3. Feed hopper; 4. Arc-shaped screen; 401. Arc-shaped mounting plate; 402. Mounting bolts; 5. Scraper; 501. Fixed plate; 6. Partition plate; 7. Drive motor; 8. Drive pulley; 9. Driven pulley; 10. Transmission belt; 11. Screw; 12. Connecting plate; 13. Arc-shaped positioning plate; 14. Collection hopper. Detailed Implementation

[0029] Example:

[0030] like Figures 1-5 As shown, an embodiment of this utility model provides a modular quick-release screen device for a gyratory pellet mill, including a support base 1, a housing 2, a feed hopper 3, an arc-shaped screen 4, a rotating scraper assembly, and a partition 6. The housing 2 is fixedly installed on the right side of the upper surface of the support base 1. The feed hopper 3 is fixedly installed above the outer surface of the housing 2. Two arc-shaped screens 4 are installed through the bottom of the feed hopper 3. Two rotating scraper assemblies are rotatably installed above the outer surface of the housing 2. A drive motor 7 is installed inside the housing 2. The output end of the drive motor 7 is connected to one of the rotating scraper assemblies. A linkage assembly is installed at the outer ends of the two rotating scraper assemblies. Slide grooves are opened on both the left and right sides of the center of the feed hopper 3, and partitions 6 are slidably installed in the slide grooves.

[0031] In actual use, the raw materials to be granulated are added into the feed hopper 3, and the material falls into the two arc-shaped screens 4. The drive motor 7 drives a rotating scraper assembly to rotate back and forth. The rotating scraper assembly drives another scraper assembly to rotate back and forth through the linkage assembly, squeezing the material in the arc-shaped screen 4 out of the through holes of the arc-shaped screen 4 to achieve the granulation effect.

[0032] By installing partitions 6, when a certain arc-shaped screen 4 needs to be replaced, the partitions 6 are inserted into the grooves on the left and right sides of the feed hopper 3 to separate the two sides of the feed hopper 3. The side of the arc-shaped screen 4 that needs to be replaced does not need to add raw materials, while the side that does not need to be replaced does. The gyratory pellet mill continues to work, and the produced pellets fall from the side of the arc-shaped screen 4 that does not need to be replaced. This configuration enables modular disassembly of the arc-shaped screen 4, and the machine does not need to be stopped when replacing the arc-shaped screen 4, thus increasing work efficiency.

[0033] In this embodiment, the rotating scraping assembly includes multiple scrapers 5 and fixed disks 501 fixed at the left and right ends of the multiple scrapers 5. The scrapers 5 are located away from the center of the fixed disks 501, which facilitates the scrapers 5 to scrape the material in the arc screen 4 and facilitates the extrusion of granular material from the through holes on the arc screen 4.

[0034] In this embodiment, the arc-shaped screen 4 includes an arc-shaped mounting plate 401 and mounting bolts 402. The arc-shaped mounting plate 401 is fixedly installed on the outer side of the right end of the arc-shaped screen 4, and multiple mounting bolts 402 are threaded onto the arc-shaped mounting plate 401.

[0035] In this embodiment, the left side surface of the chassis 2 has multiple mounting holes that match the mounting bolts 402.

[0036] With the arc-shaped mounting plate 401 and mounting bolts 402, when installing the arc-shaped screen 4, simply align the mounting bolts 402 on the arc-shaped mounting plate 401 with the mounting holes inside the housing 2 and tighten the mounting bolts 402 to achieve the installation of the arc-shaped screen 4. The installation and disassembly are convenient.

[0037] In this embodiment, a positioning component for positioning the arc-shaped screen 4 is installed on the left side of the feed hopper 3. The positioning component includes a screw 11 that is rotatably mounted on the lower left end of the feed hopper 3 via a bearing. A connecting plate 12 is threaded onto the upper part of the screw 11, and an arc-shaped positioning plate 13 is fixedly mounted on the bottom of the connecting plate 12.

[0038] In this embodiment, when the right side surface of the connecting plate 12 is attached to the surface of the feed hopper 3, the arc-shaped positioning plate 13 extends into the lower left side of the arc-shaped screen 4, and the diameter of the arc-shaped positioning plate 13 is equal to the diameter of the arc-shaped screen 4.

[0039] With the positioning component installed, after the arc screen 4 is installed, the screw 11 is rotated, and the screw 11 drives the connecting plate 12 to move to one side of the feed hopper 3, so that the arc positioning plate 13 extends into the lower left side of the arc screen 4, thereby achieving the effect of supporting the lower left side of the arc screen 4 and ensuring the stability of the arc screen 4 after installation.

[0040] In this embodiment, the linkage component includes a drive pulley 8 fixed to the left end of the outer rotating scraper assembly and a driven pulley 9 fixed to the left end of the inner scraper assembly. A transmission belt 10 is sleeved between the drive pulley 8 and the driven pulley 9.

[0041] With a transmission component, the drive motor 7 drives the outer rotating scraper assembly to rotate back and forth, causing the drive pulley 8 to rotate back and forth. The drive pulley 8 drives the driven pulley 9 and the inner rotating scraper assembly to rotate through the transmission belt 10. A single motor can drive two scraper assemblies to rotate, which is more energy-efficient.

[0042] In this embodiment, a material collection hopper 14 is fixedly installed below the outer surface of the casing 2, and there is a distance between the material collection hopper 14 and the arc-shaped screen 4.

[0043] By providing a collection hopper 14, the granular material extruded from the arc screen 4 can be collected, which is convenient for subsequent bagging. Moreover, there is a distance between the collection hopper 14 and the arc screen 4, so the collection hopper 14 will not affect the disassembly and installation of the arc screen 4.

[0044] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A modular quick-release screen assembly for a swing granulator, characterized by: Including support seat (1), machine case (2), feed hopper (3), arc screen (4), rotating scraping assembly and partition (6), the upper surface right side of the support seat (1) is fixedly provided with machine case (2), the upper surface of the outside of machine case (2) is fixedly provided with feed hopper (3), the bottom of feed hopper (3) is provided with two arc screen (4), the outside of machine case (2) is rotatably provided with two rotating scraping assembly, the inside of machine case (2) is installed with drive motor (7), the output end of drive motor (7) is connected with one rotating scraping assembly, the outer end of two rotating scraping assembly is installed with linkage assembly, the inside of feed hopper (3) is provided with chute on the left and right sides, and the partition (6) is slidably arranged in the chute.

2. The modular quick-release screen assembly for a gyratory particulate machine of claim 1, wherein: The rotating scraping assembly includes a plurality of scrapers (5) and a fixed disc (501) fixed to the left and right ends of the plurality of scrapers (5), and the scraper (5) is arranged away from the center of the fixed disc (501).

3. The modular quick-release screen assembly for a gyratory particulate machine of claim 2, wherein: The arc screen (4) includes an arc mounting plate (401) and a mounting bolt (402), the right end of the arc screen (4) is fixedly provided with an arc mounting plate (401), and a plurality of mounting bolts (402) are threadedly connected to the arc mounting plate (401).

4. The modular quick-release screen assembly for a gyratory particulate machine of claim 3, wherein: A plurality of mounting holes matched with the mounting bolts (402) are formed in the left side surface of the machine case (2).

5. The modular quick-release screen assembly for a swing mill as claimed in claim 1, wherein: A positioning assembly for positioning the arc screen (4) is mounted on the left side of the feed hopper (3), the positioning assembly includes a screw rod (11) rotatably arranged below the left end of the feed hopper (3) through a bearing, a connecting plate (12) is threadedly connected to the upper end of the screw rod (11), and an arc positioning plate (13) is fixedly arranged at the bottom of the connecting plate (12).

6. The modular quick-release screen assembly for a gyratory particulate machine of claim 5, wherein: When the right side surface of the connecting plate (12) is attached to the surface of the feed hopper (3), the arc positioning plate (13) extends into the left lower side of the arc screen (4), and the diameter of the arc positioning plate (13) corresponds to the diameter of the arc screen (4).

7. The modular quick-release screen assembly for a gyratory particulate machine of claim 6, wherein: The linkage assembly includes a driving pulley (8) fixed to the left end of the outer rotating scraping assembly and a driven pulley (9) fixed to the left end of the inner rotating scraping assembly, and a transmission belt (10) is sleeved between the driving pulley (8) and the driven pulley (9).

8. The modular quick-release screen assembly for a swing mill as claimed in claim 1, wherein: A collecting hopper (14) is fixedly arranged below the outside surface of the machine case (2), and there is a distance between the collecting hopper (14) and the arc screen (4).

Citation Information

Patent Citations

  • Oscillating granulator

    CN220276915U