Granule dispensing hopper screw conveyor flight spacing adjustment device
By designing an adjustable granule dispensing and metering hopper screw conveyor blade spacing device, the problem of cumbersome adjustment caused by fixed blades was solved, realizing flexible adjustment of conveying volume and quick disassembly of the feed hopper, thus improving production efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 天长亿帆制药有限公司
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-07
AI Technical Summary
The existing granule dispensing metering hopper has a fixed spiral blade structure, which means that when dealing with different granule characteristics or packaging specifications, the entire set of blades or conveying components must be replaced, making the adjustment process cumbersome and causing long downtime.
A device for adjusting the spacing of the spiral conveyor blades in a granule dispensing and metering hopper was designed. Through the cooperation of components such as a convex frame, connecting shaft, sealing plate, blade frame, slide bar, and T-shaped bar, the blade frame can be adjusted at equal intervals, flexibly adjusting the single conveying volume. Furthermore, through the cooperation of an L-shaped block, a limiting rod, and a spring, the feeding hopper can be quickly installed, disassembled, and cleaned.
It improves the dispensing accuracy and the applicability of the device, reduces the frequency of blade replacement, enhances operational stability and the ease of cleaning the feed hopper, and adapts to the needs of different granule types and packaging specifications.
Smart Images

Figure CN224466768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of granule conveying technology, and in particular to a device for adjusting the spacing between the blades of a spiral conveyor for granule dispensing and metering hopper. Background Technology
[0002] Granules are dried granular preparations made by mixing drugs with suitable excipients. They are typically produced through processes such as granulation and drying, and their particle size generally ranges from 100 micrometers to 2 millimeters. They combine the characteristics of powders and capsules, maintaining drug stability while facilitating dosage dispensing. Compared to tablets, they dissolve more easily and are absorbed more quickly. Widely used in the food, pharmaceutical, and chemical industries, the accuracy of their packaging and metering directly affects product quality and production efficiency. Therefore, a dispensing and metering hopper with an adjustable blade spacing device is required.
[0003] The granule dispensing and metering hopper screw conveyor blade spacing adjustment device is a mechanism used for conveying and quantitatively dispensing granular materials. It usually adopts a screw conveyor structure to transport granules from the raw material silo to the metering hopper for quantitative feeding. In the past, the screw blade structure was usually fixed and the spacing between the blades was not adjustable. This meant that when dealing with different granule characteristics or packaging specifications, it was necessary to replace the entire set of blades or conveying components, which was a cumbersome adjustment process and resulted in long downtime. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a granule dispensing metering hopper spiral conveyor blade spacing adjustment device, which aims to improve the problem that the spiral blade structure is usually fixed, and when dealing with different granule characteristics or packaging specifications, the entire set of blades or conveying components need to be replaced.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A granule dispensing and metering hopper screw conveyor blade spacing adjustment device includes a housing. The housing contains a feed hopper and a discharge hopper. A motor is fixedly connected to the outer wall of the housing. The output end of the motor passes through the interior of the housing and is fixedly connected to a convex frame. A connecting shaft is rotatably connected inside the convex frame. A sealing plate is installed inside the connecting shaft. A circular block is slidably connected inside both the connecting shaft and the sealing plate. A paddle frame is fixedly connected to the outer wall of the circular block. A sliding rod is slidably connected inside the paddle frame. Both ends of the sliding rod are fixedly connected to the outer wall of the convex frame. A T-shaped rod is rotatably connected inside the convex frame. The outer wall of the T-shaped rod is fixedly connected to the interior of the connecting shaft. A limit assembly is installed inside the T-shaped rod.
[0007] Preferably, the limiting component includes a pin, the outer wall of which is slidably connected to the inside of the T-shaped rod, and the outer wall of the pin is disposed inside the convex frame.
[0008] Preferably, the outer wall of the convex frame is rotatably connected to the inside of the housing, and the inner wall of the blade frame is slidably connected to the outer wall of the connecting shaft.
[0009] Preferably, the inside of the feed hopper is provided with L-shaped block one and L-shaped block two, and the inside of L-shaped block one and L-shaped block two is slidably connected with a limit rod.
[0010] Preferably, a spring is fixedly connected to the outer wall of the L-shaped block one, and the outer wall of the spring is fixedly connected to the outer wall of the L-shaped block two.
[0011] Preferably, the lower surfaces of both L-shaped block one and L-shaped block two are fixedly connected to support seats, and the support seats are slidably connected to bases.
[0012] Preferably, the lower surface of the base is fixedly connected to the upper surface of the housing, and a fixing rod is fixedly connected to the upper surface of the support base.
[0013] Preferably, the outer wall of the fixing rod is slidably connected to a T-shaped frame, and the outer wall of the T-shaped frame is rotatably connected to the inside of the base.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, through the cooperation between the convex frame, connecting shaft, sealing sheet, round block, blade frame, slide bar, T-shaped bar and limiting component, the T-shaped bar is rotated to make the blade frame equidistantly adjusted position. The single conveying volume can be flexibly adjusted according to the type of granules and the target packaging quantity, thereby improving the dispensing accuracy, expanding the applicability of the device and reducing the blade replacement frequency.
[0016] 2. In this utility model, the feeding hopper can be quickly installed and disassembled through the cooperation between L-shaped block one, L-shaped block two, limiting rod, spring, support seat, base, fixing rod and T-shaped frame, which facilitates the cleaning of residual materials between the box and the feeding hopper. By changing different feeding hoppers to adapt to the adjustment of the screw blade spacing, the material flow rate of the feeding hopper is matched with the screw conveying speed, thereby improving the stability of the device operation. Attached Figure Description
[0017] Figure 1 This is a perspective view of the granule dispensing and metering hopper spiral conveyor blade spacing adjustment device proposed in this utility model.
[0018] Figure 2 This is a partial structural diagram of the pin of the granule dispensing and metering hopper spiral conveyor blade spacing adjustment device proposed in this utility model.
[0019] Figure 3 This is a partial structural diagram of the circular block of the granule dispensing and metering hopper spiral conveyor blade spacing adjustment device proposed in this utility model.
[0020] Figure 4 This is a partial structural diagram of the limiting rod of the granule dispensing and metering hopper spiral conveyor blade spacing adjustment device proposed in this utility model.
[0021] Legend:
[0022] 1. Housing; 2. Feed hopper; 3. Discharge hopper; 4. Motor; 5. Convex frame; 6. Connecting shaft; 7. Sealing plate; 8. Round block; 9. Paddle frame; 10. Slide rod; 11. T-shaped rod; 12. Pin; 13. L-shaped block one; 14. L-shaped block two; 15. Limiting rod; 16. Spring; 17. Support seat; 18. Base; 19. Fixing rod; 20. T-shaped frame. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides a granule dispensing metering hopper spiral conveyor blade spacing adjustment device, including a housing 1, a feeding hopper 2 and a discharging hopper 3 inside the housing 1, a motor 4 fixedly connected to the outer wall of the housing 1, the output end of the motor 4 passing through the interior of the housing 1 and fixedly connected to a convex frame 5, a connecting shaft 6 rotatably connected inside the convex frame 5, a sealing plate 7 inside the connecting shaft 6, a circular block 8 slidably connected inside both the connecting shaft 6 and the sealing plate 7, a paddle frame 9 fixedly connected to the outer wall of the circular block 8, a sliding rod 10 slidably connected inside the paddle frame 9, both ends of the sliding rod 10 fixedly connected to the outer wall of the convex frame 5, a T-shaped rod 11 rotatably connected inside the convex frame 5, the outer wall of the T-shaped rod 11 fixedly connected to the interior of the connecting shaft 6, and a limit component inside the T-shaped rod 11;
[0025] Specifically, the convex frame 5 is driven by the motor 4. The convex frame 5, connecting shaft 6, paddle frame 9, and slide bar 10 can be considered as a whole, facilitating the rotation of the paddle frame 9 to convey the granules inside the housing 1. A control valve is installed inside the hopper 3 to control the material inside the hopper 3 and to meter the material for dispensing. The T-shaped rod 11 is limited by a limiting component, causing the housing 1 to rotate with the convex frame 5, thereby preventing accidental rotation of the connecting shaft 6. The connecting shaft 6 has multiple arc-shaped grooves inside, and each arc-shaped groove is curved... The different degrees facilitate the sliding of the round block 8 within the groove. The slide rod 10 limits the position of the blade holder 9, thereby adjusting the position of the blade holder 9 on the outer wall of the connecting shaft 6 and adjusting the blade spacing. A sealing plate 7 is provided on the inner wall of the arc-shaped groove to prevent granules from entering the arc-shaped groove and affecting the movement of the blade holder 9. The sealing plate 7 is flexible and has an opening inside. When the position of the blade holder 9 is not adjusted, the sealing plate 7 remains sealed. When the position of the blade holder 9 is adjusted, the round block 8 will press against the opening of the sealing plate 7, causing the sealing plate 7 to open and close simultaneously.
[0026] Reference Figure 2 The limiting component includes a pin 12, the outer wall of which is slidably connected to the inside of the T-shaped rod 11, and the outer wall of the pin 12 is located inside the convex frame 5.
[0027] Specifically, the pin 12 is set inside the T-shaped rod 11, and the pin 12 is set to the commonly available automatic spring type, which makes it easy to lock the right side of the pin 12 inside the convex frame 5, so as to prevent the pin 12 from sliding out of the convex frame 5 due to the centrifugal force generated when the convex frame 5 rotates. When not needed, the left side of the pin 12 can also be installed to slide the pin 12 out of the convex frame 5.
[0028] Reference Figure 2 and Figure 3 The outer wall of the convex frame 5 is rotatably connected to the inside of the housing 1, and the inner wall of the blade frame 9 is slidably connected to the outer wall of the connecting shaft 6.
[0029] Specifically, both ends of the connecting shaft 6 are provided with convex brackets 5, and the convex brackets 5 on both sides rotate inside the housing 1, thereby supporting the rotation of the connecting shaft 6. The outer wall of the connecting shaft 6 is used for the movement of the blade frame 9.
[0030] Reference Figure 1 and Figure 4The feed hopper 2 is equipped with an L-shaped block 13 and an L-shaped block 24 inside, and a limit rod 15 is slidably connected inside the L-shaped block 13 and the L-shaped block 2. A spring 16 is fixedly connected to the outer wall of the L-shaped block 13, and the outer wall of the spring 16 is fixedly connected to the outer wall of the L-shaped block 2. A support seat 17 is fixedly connected to the lower surface of both the L-shaped block 13 and the L-shaped block 2. A base 18 is slidably connected inside the support seat 17. The lower surface of the base 18 is fixedly connected to the upper surface of the box 1, and a fixing rod 19 is fixedly connected to the upper surface of the support seat 17. A T-shaped frame 20 is slidably connected to the outer wall of the fixing rod 19, and the outer wall of the T-shaped frame 20 is rotatably connected to the inside of the base 18.
[0031] Specifically, when installing the feed hopper 2, the feed hopper 2 is slid into the interior of the housing 1. Mounting blocks are provided on both sides of the feed hopper 2, and the interior of the mounting blocks has grooves that match the outer walls of L-shaped blocks 13 and 14. This allows the L-shaped blocks 13 and 14 to move to both sides under the elastic force of the spring 16, so that the outer walls of L-shaped blocks 13 and 14 slide into the grooves, thereby limiting the installation of the feed hopper 2. A slide rail is provided on the upper surface of the base 18 to restrict the movement of the support 17. A short rod is provided in the middle of the T-shaped frame 20, which rotates inside the base 18. The interior of the T-shaped frame 20 has grooves for the movement of the fixing rod 19, thereby facilitating the synchronous movement of the fixing rod 19 on both sides and the support 17.
[0032] Working principle: When using this device, the granules are fed into the housing 1 through the feed hopper 2. Then, the motor 4 is started, driving the convex frame 5 to rotate inside the housing 1. The convex frames 5 on both sides, through the slide rod 10 and the blade frame 9, form a whole. At the same time, the pin 12 is inserted into the inside of the left convex frame 5, causing the T-shaped rod 11 and the connecting shaft 6 to rotate with the convex frame 5. This avoids the centrifugal force generated by the rotation of the multiple blade frames 9 on the outer wall of the connecting shaft 6, which would cause the connecting shaft 6 to shift. The rotation of the connecting shaft 6 then moves the contents of the housing 1. The granules are conveyed through the feed hopper 3 and then distributed to other equipment after metering. When the motor 4 is not running, the granules inside the box 1 are emptied. The pin 12 is pulled out of the left convex frame 5, so that the T-shaped rod 11 no longer follows the convex frame 5. The T-shaped rod 11 is rotated, which drives the connecting shaft 6 to rotate inside the convex frames 5 on both sides. Under the action of the arc groove opened in the connecting shaft 6 by the round block 8 and the sealing plate 7, the blade frame 9 is driven to move towards the center of the connecting shaft 6 on the outer wall of the sealing plate 7 and the slide rod 10, thereby adjusting the spacing of the blade frame 9.
[0033] By pressing L-shaped blocks 13 and 14, they move towards the center of the base 18 under the limit of the limiting rod 15, compressing the spring 16. At the same time, the support seats 17 on both sides move towards the T-shaped frame 20. The base 18 limits the movement of the support seats 17. The support seats 17 drive the fixed rod 19 to move, thereby driving the T-shaped frame 20 to rotate. Under the action of the T-shaped frame 20, the fixed rod 19 and the support seats 17, the normal movement of L-shaped blocks 13 and 14 is ensured. After the movement of L-shaped blocks 13 and 14, they slide out of the inside of the feed hopper 2, and the feed hopper 2 is no longer limited, making it easy to slide the feed hopper 2 out of the box 1. During use, this device not only adjusts the spacing between multiple paddle frames 9 to control the material conveying volume, but also enables quick installation and disassembly of the feed hopper 2, facilitating cleaning or maintenance of the feed hopper 2.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A granule dispensing hopper screw conveyor flight spacing adjustment device comprising a housing (1) characterised in that: The box (1) is provided with a feed hopper (2) and a discharge hopper (3). The outer wall of the box (1) is fixedly connected to a motor (4). The output end of the motor (4) passes through the inside of the box (1) and is fixedly connected to a convex frame (5). The convex frame (5) is rotatably connected to a connecting shaft (6). The connecting shaft (6) is provided with a sealing plate (7). The connecting shaft (6) and the sealing plate (7) are both slidably connected to a round block (8). The outer wall of the round block (8) is fixedly connected to a blade frame (9). The blade frame (9) is slidably connected to a slide rod (10). Both ends of the slide rod (10) are fixedly connected to the outer wall of the convex frame (5). The convex frame (5) is rotatably connected to a T-shaped rod (11). The outer wall of the T-shaped rod (11) is fixedly connected to the inside of the connecting shaft (6). The T-shaped rod (11) is provided with a limit component inside.
2. The granule dispensing hopper screw conveyor flight spacing adjustment device of claim 1, wherein: The limiting component includes a pin (12), the outer wall of which is slidably connected to the inside of the T-shaped rod (11), and the outer wall of the pin (12) is disposed inside the convex frame (5).
3. The granule dispensing and metering hopper screw conveyor blade spacing adjustment device according to claim 1, characterized in that: The outer wall of the convex frame (5) is rotatably connected to the inside of the housing (1), and the inner wall of the blade frame (9) is slidably connected to the outer wall of the connecting shaft (6).
4. The granule dispensing and metering hopper screw conveyor blade spacing adjustment device according to claim 1, characterized in that: The feed hopper (2) is provided with an L-shaped block one (13) and an L-shaped block two (14) inside, and a limit rod (15) is slidably connected inside the L-shaped block one (13) and the L-shaped block two (14).
5. The granule dispensing and metering hopper screw conveyor blade spacing adjustment device according to claim 4, characterized in that: A spring (16) is fixedly connected to the outer wall of the first L-shaped block (13), and the outer wall of the spring (16) is fixedly connected to the outer wall of the second L-shaped block (14).
6. The granule dispensing and metering hopper screw conveyor blade spacing adjustment device according to claim 4, characterized in that: The lower surfaces of L-shaped block one (13) and L-shaped block two (14) are fixedly connected to support bases (17), and the support bases (17) are slidably connected to the interior of the support bases (17).
7. The granule dispensing and metering hopper screw conveyor blade spacing adjustment device according to claim 6, characterized in that: The lower surface of the base (18) is fixedly connected to the upper surface of the box (1), and the upper surface of the support (17) is fixedly connected to a fixing rod (19).
8. The granule dispensing and metering hopper screw conveyor blade spacing adjustment device according to claim 7, characterized in that: The outer wall of the fixed rod (19) is slidably connected to a T-shaped frame (20), and the outer wall of the T-shaped frame (20) is rotatably connected to the inside of the base (18).