Double-screw extrusion forming machine for large-particle slow-release fertilizer

By combining crushing blades and spiral conveyor blades, the problems of poor extrusion molding and part damage caused by the large size of slow-release fertilizer raw materials were solved, and uniform extrusion and multi-specification product production were achieved.

CN223697654UActive Publication Date: 2025-12-23QINGDAO SANFU ORGANIC COMPOUND FERTILIZER CO LTD
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Patent Information

Application Number
CN202520091247.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-12-23
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

In existing technologies, the raw materials for slow-release fertilizers are relatively large, resulting in poor extrusion molding effects. Furthermore, pouring too much fertilizer at once increases the screw rotation resistance, damages extrusion molding machine parts, and shortens the service life.

Method used

The slow-release fertilizer raw material is pulverized into small particles using a pulverizing blade, and fed evenly using a spiral conveyor blade. The diameter of the extrusion molding hole can be adjusted by replacing the double discharge cover through a disassembly and assembly mechanism.

Benefits of technology

It achieves uniform extrusion molding of slow-release fertilizer, protects the parts of the extrusion molding machine, extends the equipment life, and can produce slow-release fertilizer products of different specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a large-particle slow-release fertilizer twin-screw extrusion forming machine which comprises a workbench, the top of the workbench is fixedly connected with an extrusion forming machine shell, the top of the extrusion forming machine shell is fixedly connected with a crushing box, the side wall of the crushing box is fixedly connected with a crushing motor, and the crushing motor is fixedly connected with a screw rod. The output end of the smashing motor is fixedly connected with a transmission rod, the transmission rod penetrates through the smashing box and is rotationally connected with the smashing box, the outer wall of the transmission rod is fixedly connected with a plurality of smashing blades, and a uniform discharging mechanism is arranged in the smashing box. According to the utility model, slow-release fertilizer raw materials can be cut and crushed through the crushing blade, so that the slow-release fertilizer raw materials are crushed into small-particle materials, the materials can be uniformly fed through the spiral conveying blade, the subsequent extrusion forming effect is good, and parts of the extrusion forming machine can be protected; and the double discharging covers and the extrusion forming holes can be replaced through the dismounting and mounting mechanism, so that products with different diameters are obtained.
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Description

TECHNICAL FIELD

[0001] The utility model relates to extrusion forming machine technical field especially relates to a kind of big granule slow-release fertilizer double-screw extrusion forming machine. BACKGROUND

[0002] With the development of modern agriculture, slow-release fertilizer is widely applied due to its slow release of nutrients, improved fertilizer utilization and reduced fertilization frequency. Double-screw extrusion forming machines are needed during slow-release fertilizer production.

[0003] When processing slow-release fertilizer raw materials through a double-screw extrusion forming machine, the slow-release fertilizer raw materials are injected into the extrusion forming machine. However, the slow-release fertilizer raw materials are relatively large, which affects the subsequent extrusion forming effect. Additionally, when too much slow-release fertilizer raw material is poured at once, the excessive slow-release fertilizer raw material increases the rotational resistance of the screw, which easily damages the parts of the extrusion forming machine and reduces the service life of the extrusion forming machine. To solve the above problems, a big granule slow-release fertilizer double-screw extrusion forming machine is proposed in this application. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides a big granule slow-release fertilizer double-screw extrusion forming machine. The crushing blades can cut and crush the slow-release fertilizer raw materials into small granular materials. The spiral conveying blades can uniformly feed the materials, and the subsequent extrusion forming effect is good. The parts of the extrusion forming machine are protected. The dismounting mechanism can replace the double-discharge covers and extrusion forming holes to obtain products with different diameters.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a kind of big particle slow-release fertilizer double screw extrusion forming machine, including workbench, the top of the workbench is fixedly connected with extrusion forming machine shell, the top of the extrusion forming machine shell is fixedly connected with pulverization box, the top of the pulverization box is fixedly connected with big particle slow-release fertilizer raw material feeding hopper, the side wall of the pulverization box is fixedly connected with pulverization motor, the output of the pulverization motor is fixedly connected with transmission rod, the transmission rod passes through pulverization box and is rotatably connected with it, the outer wall of the transmission rod is fixedly connected with multiple pulverization blades, uniform discharge mechanism is equipped in the pulverization box, the top of the extrusion forming machine shell is fixedly connected with fixed hopper, the side wall of the workbench is fixedly connected with servo motor, two screw shafts rotatably connected with it are provided on the extrusion forming machine shell and pass through, the outer wall of each screw shaft is fixedly connected with screw thread, the outer wall of each screw shaft is fixedly connected with gear, two gears are meshed with each other, the screw shaft of front side is fixedly connected with the output of servo motor, the outer wall of the extrusion forming machine shell is equipped with double discharge cover, two dismounting mechanisms are equipped between the extrusion forming machine shell and double discharge cover.

[0007] Preferably, the uniform discharge mechanism includes a rotating rod that passes through the pulverization box and is rotatably connected therewith, the outer wall of the transmission rod and the outer wall of the rotating rod are collectively provided with a belt wheel belt, the outer wall of the rotating rod is fixedly connected with a spiral conveying blade, the side wall of the pulverization box is fixedly connected with a discharge hopper, and the rotating rod and the spiral conveying blade are both provided through the discharge hopper.

[0008] Preferably, the dismounting mechanism includes a T-shaped bolt that passes through the double discharge cover and is slidably connected therewith, the outer wall of the T-shaped bolt is provided with a spring, and the two ends of the spring are fixedly connected with the double discharge cover and the T-shaped bolt, respectively, a spring is formed on the extrusion forming machine shell, and the T-shaped bolt is arranged by being inserted into the spring.

[0009] Preferably, the outer wall of the transmission rod is fixedly connected with a driving belt wheel, the outer wall of the rotating rod is fixedly connected with a driven belt wheel, and the belt wheel belt is provided on the outer walls of the driving belt wheel and the driven belt wheel.

[0010] Preferably, the side wall of the workbench is fixedly connected with a motor support plate, and the servo motor is arranged on and fixedly connected with the motor support plate.

[0011] Preferably, a plurality of extrusion forming holes are formed through the double discharge cover.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The output end of the pulverization motor drives the transmission rod and the plurality of pulverization blades to rotate, the plurality of pulverization blades can cut and pulverize the raw materials of the slow-release fertilizer by rotating, the raw materials are broken into small particle materials, and the subsequent extrusion forming process is facilitated.

[0014] 2, by transmission rod rotation belt drive, rotating rod, screw conveying blade rotation, through the screw conveying blade rotation can be transported to the small particle material after crushing, make it uniform discharge into the fixed hopper, extrusion molding process, and can be protected to the parts of the extrusion molding machine.

[0015] 3, the staff hold two T-shaped bolt to move in opposite directions, in this process, the spring is stretched, until the two T-shaped bolt are separated from the positioning hole, the double discharge cover can be removed, by changing different double discharge cover, the diameter of the extrusion molding hole can be adjusted, and different specifications of large particle slow-release fertilizer products can be obtained.

[0016] In summary, the raw material of slow-release fertilizer can be cut and crushed by the crushing blade, so that it is crushed into small particle material, the material can be uniformly fed by the screw conveying blade, the subsequent extrusion molding effect is good, and the parts of the extrusion molding machine can be protected; the double discharge cover and the extrusion molding hole can be replaced by the dismounting mechanism to obtain products with different diameters. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the first structure schematic view of a large particle slow-release fertilizer double screw extrusion molding machine provided by the utility model;

[0018] Figure 2 It is the second structure schematic view of a large particle slow-release fertilizer double screw extrusion molding machine provided by the utility model;

[0019] Figure 3 It is the first cross section schematic view of a large particle slow-release fertilizer double screw extrusion molding machine provided by the utility model;

[0020] Figure 4 It is the second cross section schematic view of a large particle slow-release fertilizer double screw extrusion molding machine provided by the utility model;

[0021] Figure 5 It is Figure 4 The structure enlarged view of A in the middle.

[0022] In the drawing: 1 workbench, 2 extrusion molding machine shell, 3 crushing box, 4 large particle slow-release fertilizer raw material feeding hopper, 5 crushing motor, 6 transmission rod, 7 crushing blade, 8 belt drive, 9 rotating rod, 10 screw conveying blade, 11 fixed hopper, 12 servo motor, 13 screw shaft, 14 gear, 15 screw thread, 16 double discharge cover, 17 T-shaped bolt, 18 spring, 19 positioning hole, 20 extrusion molding hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] With reference to Figures 1-5 A large-particle slow-release fertilizer double-screw extruding forming machine, including workbench 1, the top of workbench 1 is fixedly connected with extruding forming machine shell 2, the top of extruding forming machine shell 2 is fixedly connected with crushing box 3, the top of crushing box 3 is fixedly connected with large-particle slow-release fertilizer raw material feeding hopper 4, the side wall of crushing box 3 is fixedly connected with crushing motor 5, the output end of crushing motor 5 is fixedly connected with transmission rod 6, transmission rod 6 penetrates crushing box 3 and is rotationally connected therewith, the outer wall of transmission rod 6 is fixedly connected with multiple crushing blades 7, and the slow-release fertilizer raw material can be cut and crushed by multiple crushing blades 7, so that it is broken into small-particle materials.

[0025] The crushing box 3 is provided with a uniform discharging mechanism, the uniform discharging mechanism includes a rotating rod 9 penetrating the crushing box 3 and rotationally connected therewith, the outer wall of the transmission rod 6 and the outer wall of the rotating rod 9 are jointly sleeved with a belt wheel 8, the outer wall of the transmission rod 6 is fixedly connected with a driving belt wheel, the outer wall of the rotating rod 9 is fixedly connected with a driven belt wheel, the belt wheel 8 is sleeved on the outer walls of the driving belt wheel and the driven belt wheel, the outer wall of the rotating rod 9 is fixedly connected with a spiral conveying blade 10, the side wall of the crushing box 3 is fixedly connected with a discharge hopper, the rotating rod 9 and the spiral conveying blade 10 are both provided through the discharge hopper, and the small-particle materials can be conveyed by the rotation of the spiral conveying blade 10, so that the raw materials are uniformly fed into the extruding forming machine.

[0026] The top of the extruding forming machine shell 2 is fixedly connected with a fixed hopper 11, the side wall of the workbench 1 is fixedly connected with a servo motor 12, the side wall of the workbench 1 is fixedly connected with a motor support plate, the servo motor 12 is arranged on the motor support plate and fixedly connected therewith, two screw shafts 13 rotationally connected with the extruding forming machine shell 2 are provided through the extruding forming machine shell 2, the outer wall of each screw shaft 13 is fixedly connected with a screw thread 15, the outer wall of each screw shaft 13 is fixedly connected with a gear 14, the two gears 14 are meshed with each other, the front screw shaft 13 is fixedly connected with the output end of the servo motor 12, and the screw shaft 13 and the screw thread 15 can be rotated by the servo motor 12, so that the extruding forming operation is realized.

[0027] The outer wall of the extrusion molding machine shell 2 is sleeved with a double discharge cover 16, a plurality of extrusion molding holes 20 are provided through the double discharge cover 16, the material is discharged through the extrusion molding holes 20 to form a column, and slow-release fertilizer raw materials are obtained; two dismounting mechanisms are arranged between the extrusion molding machine shell 2 and the double discharge cover 16, the dismounting mechanism comprises a T-shaped bolt 17 which is slidably connected through the double discharge cover 16, the outer wall of the T-shaped bolt 17 is sleeved with a spring 18, the two ends of the spring 18 are fixedly connected with the double discharge cover 16 and the T-shaped bolt 17 respectively, the spring 18 is provided on the extrusion molding machine shell 2, and the T-shaped bolt 17 is inserted into the spring 18, so that the double discharge cover 16 can be replaced, the diameter specification of the extrusion molding hole 20 can be adjusted, and products with different diameters can be obtained.

[0028] In the utility model, the staff pours the slow-release fertilizer raw materials into the crushing box 3 through the large-particle slow-release fertilizer raw material feeding hopper 4, starts the crushing motor 5, drives the transmission rod 6 and the plurality of crushing blades 7 to rotate through the output end of the crushing motor 5, cuts and crushes the slow-release fertilizer raw materials through the rotation of the plurality of crushing blades 7, breaks the slow-release fertilizer raw materials into small-particle materials, and facilitates the subsequent extrusion molding process; the belt wheel belt 8, the rotary rod 9 and the spiral conveying blade 10 are driven to rotate through the rotation of the transmission rod 6, the small-particle materials after crushing are conveyed through the rotation of the spiral conveying blade 10, and the small-particle materials are uniformly discharged into the fixed hopper 11 to carry out the extrusion molding process; the front screw rod 13 and the gear 14 and the rear gear 14 and the screw rod 13 are driven to rotate through the output end of the servo motor 12, the small-particle materials are extruded and molded through the synchronous rotation of the two screw rods 13 and the rotation of the screw thread 15, and the large-particle slow-release fertilizer is obtained; the staff holds the two T-shaped bolts 17 and moves them away from each other, the spring 18 is stretched in this process, until the two T-shaped bolts 17 are separated from the positioning holes 19, the double discharge cover 16 can be removed, the diameter of the extrusion molding hole 20 can be adjusted through the replacement of different double discharge covers 16, and the large-particle slow-release fertilizer products with different specifications are obtained.

[0029] The utility model discloses a crushing blade and spiral conveying blade are set up in cooperation, and the slow-release fertilizer raw materials are poured into the extrusion molding machine in prior art, the slow-release fertilizer raw materials are big, the subsequent extrusion molding effect is not good, and when the slow-release fertilizer raw materials are poured too much at a time, the slow-release fertilizer raw materials are too much, the rotation resistance of screw rod is increased, the parts of extrusion molding machine are easily damaged, and the service life of extrusion molding machine is reduced.

Claims

1. A double screw extrusion molding machine for large granular slow release fertilizer comprising a workbench (1), characterized in that, The top of the workbench (1) is fixedly connected with an extrusion forming shell (2), the top of the extrusion forming shell (2) is fixedly connected with a crushing box (3), the top of the crushing box (3) is fixedly connected with a large particle slow-release fertilizer raw material feeding hopper (4), the side wall of the crushing box (3) is fixedly connected with a crushing motor (5), the output end of the crushing motor (5) is fixedly connected with a transmission rod (6), the transmission rod (6) penetrates through the crushing box (3) and is rotatably connected therewith, a plurality of crushing blades (7) are fixedly connected to the outer wall of the transmission rod (6), the crushing box (3) is provided with a uniform discharging mechanism, the top of the extrusion forming shell (2) is fixedly connected with a fixed hopper (11), the side wall of the workbench (1) is fixedly connected with a servo motor (12), two screw shafts (13) rotatably connected with the extrusion forming shell (2) are provided on the extrusion forming shell (2), the outer wall of each screw shaft (13) is fixedly connected with a screw thread (15), the outer wall of each screw shaft (13) is fixedly connected with a gear (14), the two gears (14) are meshed with each other, the screw shaft (13) on the front side is fixedly connected with the output end of the servo motor (12), the outer wall of the extrusion forming shell (2) is sleeved with a double discharging cover (16), and two dismounting mechanisms are arranged between the extrusion forming shell (2) and the double discharging cover (16).

2. The twin-screw extrusion molding machine for large granular slow release fertilizer according to claim 1, characterized in that, The uniform discharging mechanism comprises a rotating rod (9) penetrating through the crushing box (3) and rotatably connected therewith, the outer wall of the transmission rod (6) and the outer wall of the rotating rod (9) are jointly sleeved with a belt wheel belt (8), the outer wall of the rotating rod (9) is fixedly connected with a spiral conveying blade (10), and the side wall of the crushing box (3) is fixedly connected with a discharging hopper.

3. The twin-screw extrusion molding machine for large granular slow release fertilizer according to claim 1, characterized in that, The dismounting mechanism comprises a T-shaped bolt (17) penetrating through the double discharging cover (16) and slidably connected therewith, the outer wall of the T-shaped bolt (17) is sleeved with a spring (18), and the two ends of the spring (18) are fixedly connected with the double discharging cover (16) and the T-shaped bolt (17) respectively, the spring (18) is arranged on the extrusion forming shell (2), and the T-shaped bolt (17) is arranged in the spring (18).

4. The twin-screw extrusion molding machine for large granular slow release fertilizer according to claim 2, characterized in that, The outer wall of the transmission rod (6) is fixedly connected with a driving pulley, the outer wall of the rotating rod (9) is fixedly connected with a driven pulley, and the belt wheel belt (8) is sleeved on the outer walls of the driving pulley and the driven pulley.

5. The twin-screw extrusion molding machine for large granular slow release fertilizer according to claim 1, characterized in that, The side wall of the workbench (1) is fixedly connected with a motor support plate, and the servo motor (12) is arranged on and fixedly connected with the motor support plate.

6. The twin-screw extrusion molding machine for large granular slow release fertilizer according to claim 3, characterized in that, A plurality of extrusion forming holes (20) are provided on the double discharging cover (16).