Rotary knife granulator

By designing the control box and feeding structure, the problem of unstable feed rate in rotary granulators was solved, enabling continuous feeding and stable control of materials, and improving the stability of particle quality and particle size distribution.

CN223747702UActive Publication Date: 2026-01-02王洋
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Patent Information

Application Number
CN202422724246.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2026-01-02
Estimated Expiration
2034-11-08

AI Technical Summary

Technical Problem

Existing rotary granulators have difficulty in continuously controlling the feed rate, resulting in excessive or insufficient feed, which affects the quality and size distribution of the granules.

Method used

The design includes a material control box and feeding structure, comprising a frame plate and a connecting pipe. The continuous feeding of materials is controlled by a transmission belt and pulley system to ensure a stable feeding rate.

Benefits of technology

It enables continuous feeding and stable control of materials, preventing too much or too little material in the granulation box, and improving the stability of particle quality and particle size distribution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rotary knife granulator, relates to the technical field of granulators, aims to solve the technical problems that the feeding amount is inconvenient to continuously control at present, and the feeding amount is too large and too small, and comprises a base, a granulation mechanism arranged on the base and a feeding mechanism arranged on the granulation mechanism, the granulation mechanism comprises a granulation box and a material containing box, the granulation box is installed at the upper end of the base, a cutter shaft is rotationally installed in the granulation box, a cutter rest is installed on the cutter shaft, a movable cutter is installed on the cutter rest through a bolt, static cutters are installed on the portions, located on the two sides of the cutter shaft, in the granulation box, and a sieve plate is installed on the portion, located below the cutter shaft, in the granulation box; the material containing box is installed at the upper end of the granulation box through bolts, the feeding mechanism comprises a material control box, the material control box is installed at the upper end of the material containing box through bolts, and a feeding hopper is arranged on the upper portion of the side end face of the material control box. The feeding device has the advantages that the feeding device is provided with a feeding structure, so that materials can continuously enter the granulation box, and the feeding amount can be controlled in the feeding process.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pelletizer technical field more specifically, relate to a rotary knife pelletizer. BACKGROUND

[0002] The rotary knife pelletizer is a kind of equipment for making material into granular, commonly used in pharmaceutical, food, chemical industry etc. Material is sent into the working area of rotary knife pelletizer after preliminary processing, under the rotation of rotary knife, interact with static knife, are continuously sheared, extruded, finally form the granule meeting the requirements, these granules are discharged from equipment after screening by screen mesh etc.

[0003] The rotary knife pelletizer is a kind of equipment for making material into granular, commonly used in pharmaceutical, food, chemical industry etc. Material is sent into the working area of rotary knife pelletizer after preliminary processing, under the rotation of rotary knife, interact with static knife, are continuously sheared, extruded, finally form the granule meeting the requirements, these granules are discharged from equipment after screening by screen mesh etc. UTILITY MODEL CONTENT

[0004] The utility model discloses a rotary knife pelletizer to overcome the prior art's insufficient, adapt to reality needs, provide a rotary knife pelletizer to solve the current technical problem of not being convenient for continuously controlling the amount of feeding, easily leading to the amount of feeding being too much and the amount of feeding being too little.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a rotary knife pelletizer, including base and the granulating mechanism of installing on base and the feeding mechanism of setting on granulating mechanism, the granulating mechanism includes granulating box and material containing box, the granulating box is installed on base upper end, the knife shaft is rotatably installed in the granulating box, the knife holder is installed on the knife shaft, the moving knife is installed on the knife holder by bolt, the static knife is installed in the granulating box and located the both sides of the knife shaft, the sieve plate is installed in the granulating box and located the below of the knife shaft, the material containing box is installed on the upper end of the granulating box by bolt;

[0006] The feeding mechanism includes control material box, the control material box is installed on the upper end of the material containing box by bolt, the side end face upper position of control material box is provided with feeding hopper.

[0007] Preferably, the upper end surface of the base is provided with a motor on one side, a first pulley is installed on the transmission shaft of the motor, a second pulley and a third pulley are installed on the knife shaft extending out of the granulating box, and a transmission belt is arranged between the second pulley and the first pulley.

[0008] Preferably, the inner wall of the material control box is provided with a frame plate, a discharging cavity is formed between the frame plate and the inner wall of the material control box, the frame plate is triangularly arranged, and the outer surface of the frame plate is arc-shaped.

[0009] Preferably, the material control box is rotatably provided with a feeding shaft, the feeding shaft is provided with an array of mounting rods, and the mounting rods are provided at the ends with feeding hoppers.

[0010] Preferably, the side end of the material control box is rotatably provided with a first rotating shaft, the first rotating shaft is provided with a fourth belt pulley and a fifth belt pulley, a transmission belt is arranged between the fourth belt pulley and the third belt pulley, the side end of the material control box is rotatably provided with a second rotating shaft on one side of the first rotating shaft, the second rotating shaft is provided with a sixth belt pulley and a first bevel gear, a transmission belt is arranged between the sixth belt pulley and the fifth belt pulley, the front end of the material control box is rotatably provided with a third rotating shaft, the third rotating shaft is provided with a seventh belt pulley and a second bevel gear, the first bevel gear is in meshing connection with the second bevel gear, the feeding shaft extends out of the material control box and is provided with an eighth belt pulley, and a transmission belt is arranged between the seventh belt pulley and the eighth belt pulley.

[0011] Compared with the prior art, the present application has the following beneficial effects:

[0012] 1. The present application realizes continuous feeding of the material and control of the feeding amount by the design of the rotating shaft and the feeding hopper structure, so that the material can continuously enter the granulating box, the feeding amount is controlled in the feeding process, and the problem of inconvenient continuous control of the feeding amount, easy overfeeding and underfeeding is solved.

[0013] 2. The present application further realizes guiding of the material by the arc-shaped arrangement of the frame plate and the communication pipe, so that the material in the discharging cavity can slide down to the communication pipe along the arc surface, the material can slide into the granulating box, and the feeding work can be performed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a front view of the present application;

[0015] Figure 2 FIG. 2 is a sectional view of the present application;

[0016] Figure 3 FIG. 3 is a sectional view of the front view of the present application;

[0017] Figure 4 The exploded view of the utility model;

[0018] Figure 5 The partial structure schematic view of the utility model.

[0019] Explanation of reference numerals in the drawing: 101, base; 102, motor; 103, first belt pulley; 200, granulating mechanism; 201, granulating box; 202, cutter shaft; 203, cutter holder; 204, moving cutter; 205, stationary cutter; 206, sieve plate; 207, second belt pulley; 208, third belt pulley; 209, material containing box; 300, feeding mechanism; 301, material control box; 302, feeding shaft; 303, mounting rod; 304, feeding hopper; 305, frame plate; 306, communication pipe; 307, fourth belt pulley; 308, eighth belt pulley; 309, seventh belt pulley; 310, second bevel gear; 311, first bevel gear; 312, fifth belt pulley; 313, feeding hopper. DETAILED DESCRIPTION

[0020] As Figures 1 to 5 shown, the utility model relates to a rotary cutter granulator, including base 101 and install granulating mechanism 200 on base 101 and set up on granulating mechanism 200 feeding mechanism 300, granulating mechanism 200 includes granulating box 201 and material containing box 209, granulating box 201 installs on base 101 upper end, and the cutter shaft 202 rotationally installed in granulating box 201, and the cutter holder 203 is installed on cutter shaft 202, and the moving cutter 204 is installed on cutter holder 203 through bolt, and the stationary cutter 205 is installed in granulating box 201 and located cutter shaft 202 both sides, and the sieve plate 206 is installed in granulating box 201 and located cutter shaft 202 below, and the material containing box 209 is installed on the upper end of granulating box 201 through bolt;

[0021] Feeding mechanism 300 includes material control box 301, and material control box 301 is installed on the upper end of material containing box 209 through bolt, and the feeding hopper 313 is arranged at the upper position of the side end face of material control box 301. The utility model discloses a feeding structure, so that the material can continuously enter the granulating box 201, and the feeding amount is controlled in the feeding process, so that the problems of too much or too little material in the granulating box 201 can be prevented. The utility model discloses an integral drive through the motor 102, and the speed of the feeding shaft 202 rotation can be controlled by changing the size of the eighth belt pulley 308 and the seventh belt pulley 309, and the size of the eighth belt pulley 308 and the seventh belt pulley 309 is set according to the actual feeding amount.

[0022] Specifically, the base 101 upper end face side is provided with a motor 102, the conveying shaft of the motor 102 is provided with a first belt pulley 103, the cutter shaft 202 extends out of the granulating box 201 and is provided with a second belt pulley 207 and a third belt pulley 208, and the second belt pulley 207 and the first belt pulley 103 are provided with a transmission belt. The motor 102 can drive the first belt pulley 103 to drive the second belt pulley 207 to rotate the cutter shaft 202.

[0023] Further, the inner wall of the material control box 301 is provided with a frame plate 305, the frame plate 305 and the inner wall of the material control box 301 form a discharging cavity, the frame plate 305 is triangularly arranged, and the outer surface of the frame plate 305 is arc-shaped. The rear end of the material control box 301 is provided with a communication pipe 306, the communication pipe 306 is arc-shaped, and the two ends of the arc-shaped communication pipe 306 are straight pipes. The beginning of the communication pipe 306 communicates with the discharging cavity, and the end of the communication pipe 306 communicates with the material container 209. The arc surface of the frame plate 305 can make the material in the discharging cavity slide down to the communication pipe 306, and the arc-shaped communication pipe 306 can guide the material to enter the granulating box 201, which can cooperate with the feeding work.

[0024] It is worth mentioning that the material control box 301 is rotatably installed with a feeding shaft 302, and the feeding shaft 302 is provided with an array of mounting rods 303 at the end thereof, and the mounting rods 303 are provided with feeding hoppers 304 at the ends thereof.

[0025] It is worth mentioning that the side end of the material control box 301 is rotatably installed with a first rotating shaft, the first rotating shaft is provided with a fourth belt pulley 307 and a fifth belt pulley 312, the fourth belt pulley 307 and the third belt pulley 208 are provided with a transmission belt, the side end of the material control box 301 is rotatably installed with a second rotating shaft on one side of the first rotating shaft, the second rotating shaft is provided with a sixth belt pulley and a first bevel gear 311, the sixth belt pulley and the fifth belt pulley 312 are provided with a transmission belt, the front end of the material control box 301 is rotatably installed with a third rotating shaft, the third rotating shaft is provided with a seventh belt pulley 309 and a second bevel gear 310, the first bevel gear 311 and the second bevel gear 310 are meshed and connected, the feeding shaft 302 extends out of the material control box 301 and is provided with an eighth belt pulley 308, and the seventh belt pulley 309 and the eighth belt pulley 308 are provided with a transmission belt. The cutter shaft 202 can rotate the third belt pulley 208, the third belt pulley 208 can drive the fourth belt pulley 307 to rotate the first rotating shaft, the fifth belt pulley 312 can drive the sixth belt pulley to rotate the second rotating shaft, the first bevel gear 311 can drive the second bevel gear 310 to rotate the third rotating shaft, and the seventh belt pulley 309 can drive the eighth belt pulley 308 to rotate the feeding shaft 302.

[0026] Working principle: the embodiment provides a rotary knife granulator, when using, through the motor 102 work drive, material is added from the feeding hopper 313 to the control material box 301, the feeding shaft 302 rotates and can make the feeding hopper 304 move along the feeding shaft 302 axis, can be loaded into the feeding hopper 304 in the control material box 301, with the feeding hopper 304 upward movement, the material in the feeding hopper 304 can be poured into the lower cavity, the material can slide down to the communicating pipe 306 along the camber, the material can enter into the granulation box 201 through the arc communicating pipe 306, with the knife shaft 202 rotation can make the movable knife 204 annular motion, cooperate with the fixed setting static knife 205 can extrude, shear the material, the material can be screened through the sieve plate 206 after extruding, shearing, the screened material can be discharged from the opening at the lower end of the granulation box 201.

[0027] The embodiments of the utility model discloses the better embodiment, but is not limited to this, the ordinary skill of the art, easily understands the spirit of the utility model according to the above-mentioned embodiment, and makes different extension and change, but as long as not departing from the spirit of the utility model, all are within the protection scope of the utility model.

Claims

1. A rotary knife granulator characterized by, The application relates to a granulating device, which comprises a base (101), a granulating mechanism (200) mounted on the base (101), and a feeding mechanism (300) arranged on the granulating mechanism (200), wherein the granulating mechanism (200) comprises a granulating box (201) and a material containing box (209), the granulating box (201) is mounted on the upper end of the base (101), a cutter shaft (202) is rotatably arranged in the granulating box (201), a cutter holder (203) is mounted on the cutter shaft (202), a moving cutter (204) is bolted on the cutter holder (203), static cutters (205) are arranged on both sides of the cutter shaft (202) in the granulating box (201), and a sieve plate (206) is arranged below the cutter shaft (202) in the granulating box (201); the material containing box (209) is bolted on the upper end of the granulating box (201). The feeding mechanism (300) comprises a material control box (301), the material control box (301) is bolted on the upper end of the material containing box (209), and a feeding hopper (313) is arranged on the upper part of the side end face of the material control box (301).

2. A rotary knife granulator according to claim 1, characterised in that A motor (102) is arranged on one side of the upper end face of the base (101), a first belt pulley (103) is mounted on the transmission shaft of the motor (102), a second belt pulley (207) and a third belt pulley (208) are arranged on the cutter shaft (202) extending out of the granulating box (201), and a transmission belt is arranged between the second belt pulley (207) and the first belt pulley (103).

3. A rotary knife granulator as claimed in claim 1, wherein A frame plate (305) is arranged on the inner wall of the material control box (301), a discharging cavity is formed between the frame plate (305) and the inner wall of the material control box (301), the frame plate (305) is arranged in a triangular shape, the outer surface of the frame plate (305) is arranged in an arc shape, a communication pipe (306) is arranged on the rear end of the material control box (301), the communication pipe (306) is arranged in an arc shape, the two ends of the arc shape of the communication pipe (306) are arranged in straight pipes, the initial end of the communication pipe (306) communicates with the discharging cavity, and the terminal end of the communication pipe (306) communicates with the material containing box (209).

4. A rotary knife granulator according to claim 3, wherein An upper feeding shaft (302) is rotatably arranged in the material control box (301), a plurality of mounting rods (303) are arranged on the upper feeding shaft (302) in an array, and an upper feeding hopper (304) is mounted on the terminal end of the mounting rod (303).

5. A rotary knife granulator according to claim 4, characterised in that The side end of the material control box (301) is rotatably connected with a first rotating shaft, the first rotating shaft is provided with a fourth belt pulley (307) and a fifth belt pulley (312), the fourth belt pulley (307) and a third belt pulley (208) are provided with a transmission belt, the side end of the material control box (301) is rotatably connected with a second rotating shaft on one side of the first rotating shaft, the second rotating shaft is provided with a sixth belt pulley and a first bevel gear (311), the sixth belt pulley and the fifth belt pulley (312) are provided with a transmission belt, the front end of the material control box (301) is rotatably connected with a third rotating shaft, the third rotating shaft is provided with a seventh belt pulley (309) and a second bevel gear (310), the first bevel gear (311) and the second bevel gear (310) are meshed and connected, and the feeding shaft (302) extends out of the material control box (301) and is provided with an eighth belt pulley (308), the seventh belt pulley (309) and the eighth belt pulley (308) are provided with a transmission belt.