A multi-size screening pulverizer

Abstract

The utility model belongs to the technical field of crushing equipment, especially is involved in a kind of multi-particle size screening pulverizer, including crushing box, rotatable with crushing cutter is equipped in the inside of crushing box, the circumference of crushing box is evenly distributed with a feed hopper and several discharge ports, the inner wall of crushing box is detachably provided with several screening components of different mesh diameters, and the screening components are respectively set to face discharge port;The inner wall of crushing box is detachably provided with stop plate, and the stop plate is used to block screening component.Utilizing screening component, once feeding, the finished product of multiple particle sizes can be obtained simultaneously, and the crushing and screening efficiency is greatly improved. According to different particle size requirements, corresponding screening component can be selected for work screening.

Description

Technical Field

[0001] This utility model belongs to the technical field of crushing equipment, and in particular relates to a multi-size screening and crushing machine. Background Technology

[0002] In many industries, such as pharmaceuticals, chemicals, mining, and food processing, the crushing and sieving of materials is often required. This is especially true for laboratory samples, where sample crushing is the first step in analytical testing. Most tests have requirements for the particle size of the crushed sample, and even for the same sample, different analytical tests may have different particle size requirements. Therefore, sample crushing equipment plays a crucial role in improving the accuracy of analytical results.

[0003] Traditional crushing equipment has the following disadvantages:

[0004] Traditional crushing equipment has limited functionality, produces uneven particle size after crushing, or makes it difficult to control the particle size. It often requires manual screening operations, which further increases labor costs, especially when multiple particle size requirements are met. This not only results in low efficiency but also easily leads to material waste and environmental pollution. Utility Model Content

[0005] In view of the technical problems existing in the background art, this utility model provides a multi-size screening and pulverizing machine, which can screen materials of different particle sizes during the pulverizing process, ensure the uniformity of the pulverized particle size, and improve the pulverizing and screening efficiency of materials.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] A multi-size screening and pulverizing machine includes a pulverizing box, inside which rotatably pulverizing blades are installed. A feed hopper and several discharge ports are evenly distributed around the circumference of the pulverizing box. Several screening components with different screen hole diameters are detachably installed on the inner wall of the pulverizing box, and the screening components are respectively positioned opposite the discharge ports. A stop plate is detachably installed on the inner wall of the pulverizing box for blocking the screening components.

[0008] Optionally, a rotating ring is integrally connected to the bottom end of the stop plate, and a rotating groove is provided on the bottom side of the crushing box, with the rotating ring rotatably disposed in the rotating groove.

[0009] Optionally, a handle is provided at the upper end of the stop plate.

[0010] Optionally, the upper end of the crushing chamber is hinged with a cover.

[0011] Optionally, the inside of the cover is evenly distributed with several rod limiting blocks, with two adjacent limiting blocks forming a group, and the two limiting blocks forming a bayonet. The number of bayonet is the same as the total number of the discharge port and the feed hopper. When the cover closes the crushing box, the handle is accommodated inside the cover and is locked in the bayonet.

[0012] Optionally, the upper end of the limiting block is provided with an arc-shaped guide slope.

[0013] Optionally, the inner wall of the crushing box is provided with an arc-shaped mounting groove, which is positioned directly opposite the discharge port, and the screening component is mounted in the mounting groove by screws.

[0014] Optionally, the cover is provided with an exhaust port.

[0015] Optionally, the multi-size screening and pulverizing mill further includes a drive mechanism for driving the pulverizing blades to rotate. The drive mechanism includes a motor and a coupling. One side of the motor is connected to the coupling, and one side of the coupling is connected to the pulverizing blades via an output shaft. A conical base is integrally extended from the bottom side of the pulverizing chamber. A limit hole and a shaft hole are sequentially formed inside the base from bottom to top. The shaft hole communicates with the interior of the pulverizing chamber. The coupling is disposed in the limit hole, and the output shaft is disposed in the shaft hole.

[0016] Optionally, the feed hopper is provided with a slot, and a plate is slidably disposed in the slot.

[0017] This utility model has the following advantages and beneficial effects:

[0018] In this invention, a feeding hopper and several discharge ports are evenly distributed around the circumference of the crushing chamber. Several screening components with different screen diameters are detachably installed on the inner wall of the crushing chamber. During the crushing process, the screening components can be used to simultaneously obtain finished products of multiple particle sizes with a single feeding, eliminating the need for manual screening and significantly improving crushing and screening efficiency. Secondly, a stop plate is detachably installed on the inner wall of the crushing chamber to block the screening components. This structure allows the stop plate to block screening components that are not currently needed, based on the specific particle size requirements of the material. Therefore, appropriate screening components can be selected for working screening according to different particle size requirements. Attached Figure Description

[0019] Figure 1 This is one of the structural diagrams of the multi-size screening and pulverizing machine in this utility model;

[0020] Figure 2 This is the second structural diagram of the multi-size screening and pulverizing machine in this utility model;

[0021] Figure 3This is a front view of the multi-size screening and pulverizing machine of this utility model;

[0022] Figure 4 for Figure 3 A cross-sectional view along the AA direction;

[0023] Figure 5 for Figure 4 A magnified view of a portion of point a.

[0024] Figure 6 This is a structural diagram of the drive mechanism and the crushing blade in this utility model;

[0025] Figure 7 This is one of the structural diagrams of the crushing box in this utility model;

[0026] Figure 8 This is the second structural diagram of the crushing box in this utility model;

[0027] Figure 9 This is a cross-sectional view of the crushing box in this utility model;

[0028] Figure 10 This is a structural diagram of the cover body in this utility model;

[0029] Figure 11 This is a structural diagram of the screening component in this utility model;

[0030] Figure 12 This is a structural diagram of the stop plate of this utility model.

[0031] Reference numerals: 1-Crushing box, 11-Discharge port, 12-Feed hopper, 13-Hinge, 14-Stop block, 15-Marking scale, 16-Base, 161-Shaft hole, 162-Limiting hole, 163-Threaded hole, 17-Slot, 18-Rotating groove, 19-Mounting groove, 2-Cover body, 21-Connecting block, 22-Pin, 23-Limiting block, 24-Guide slope, 25-Balance, 26-Exhaust port, 3-Motor, 31-Coupling, 32-Output shaft, 33-Crushing blade, 4-Sieving assembly, 41-Sieve hole, 42-Counterhead hole, 5-Stop plate, 51-Handle, 52-Rotating ring, 6-Insert plate, 61-Handle. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] Example

[0035] like Figures 1-12 As shown, a multi-particle-size screening and pulverizing machine includes a crushing box 1. Inside the crushing box 1, rotatable crushing blades 33 are mounted. The crushing blades 33 have a serrated design, enabling rapid and effective crushing of materials. A feed hopper 12 and several discharge ports 11 are evenly distributed around the circumference of the crushing box 1. In this invention, the number of discharge ports 11 is set to three. Several screening components 4 with different screen hole diameters 41 are detachably mounted on the inner wall of the crushing box 1. The number of screening components 4 is the same as the number of discharge ports 11, and the screening components 4 are positioned directly opposite the discharge ports 11, i.e., the screening components 4 are positioned at the discharge ports 11 for screening. At least one stop plate 5 is detachably mounted on the inner wall of the crushing box 1, and the stop plate 5 is used to block the screening components 4.

[0036] In this invention, a feeding hopper 12 and several discharge ports 11 are evenly distributed around the circumference of the crushing chamber 1. Several screening components 4 with different screen hole diameters 41 are detachably installed on the inner wall of the crushing chamber 1. During the crushing process, multiple particle sizes can be obtained simultaneously through a single feeding using the screening components 4, eliminating the need for manual screening and significantly improving crushing and screening efficiency. Secondly, a stop plate 5 is detachably installed on the inner wall of the crushing chamber 1 to block the screening components 4. This structure allows for the use of the stop plate 5 to block screening components 4 that are not currently needed, based on specific material crushing particle size requirements. This enables the selection of appropriate screening components 4 for different particle size requirements.

[0037] Furthermore, a rotating ring 52 is integrally connected to the bottom end of the stop plate 5, and a rotating groove 18 is provided on the bottom side of the crushing box 1. The rotating ring 52 is rotatably disposed in the rotating groove 18. The rotating ring 52 is used to realize the movable installation of the stop plate 5. When adjusting the position of the stop plate 5, it is only necessary to rotate the stop plate 5 to the corresponding position of the screening component 4 to block the screening component 4 and close the corresponding discharge port 11.

[0038] Furthermore, a handle 51 is provided at the upper end of the stop plate 5. The upper end of the handle 51 extends from the upper end of the crushing box 1, making it easy for a person to hold the handle 51 and rotate it to adjust the position of the stop plate 5.

[0039] In this invention, a cover 2 is hinged to the upper end of a crushing chamber 1. Specifically, a U-shaped hinge portion 13 is provided at the upper end of the crushing chamber 1, and a connecting block 21 is provided on one side of the cover 2. A pin 22 is provided on the connecting block 21, and the pin 22 is rotatably disposed in the through hole of the hinge portion 13. A stop block 14 is provided at the rear side of the hinge portion 13. When the cover 2 is fully opened, the connecting block 21 abuts against the stop block 14 to fix the position of the cover 2.

[0040] Furthermore, four markings 15 are evenly distributed around the upper circumference of the crushing box 1. The bottom side of the markings 15 faces the discharge port 11 and the feed hopper 12, and are used to position the discharge port 11 and the feed hopper 12. When the handle 51 is turned, the stop plate 5 can be precisely adjusted to the corresponding discharge port 11 or feed hopper 12 position by observing the position of the handle 51 and the markings 15. When the stop plate 5 is adjusted to the corresponding discharge port 11 position, it blocks the screening component 4. When the stop plate 5 is adjusted to the corresponding feed hopper 12 position, it blocks the feed hopper 12 and stops feeding. At the same time, it can also prevent material from flying out of the feed hopper 12 when the crushing blades 33 are working.

[0041] In this invention, the interior of the cover 2 is evenly distributed with several rod-limiting blocks 23. Two adjacent limiting blocks 23 form a group, and a latch 25 is formed between two limiting blocks 23. The number of latches 25 is the same as the total number of the discharge port 11 and the feed hopper 12. The latches 25 correspond to the feed hopper 12 / discharge port 11. When the cover 2 closes the crushing chamber 1, the handle 51 is housed inside the cover 2 and is locked in the latch 25. This design allows for the limiting installation of the handle 51 and the installation and fixation of the stop plate 5, preventing it from changing position due to the impact and rotation of the material during crushing. Using the latches 25 and the handle 51, when the cover 2 is closed, the handle 51 is positioned in the latches 25, thus fixing the stop plate 5.

[0042] Furthermore, the upper end of the limiting block 23 is provided with an arc-shaped guide slope 24. When the positions of the handle 51 and the feed hopper 12 or the discharge port 11 are not directly aligned, but have some error, the guide slope 24 can guide the handle 51 to be inserted into the slot 25. When the cover 2 is closed, the handle 51 is accurately engaged, which in turn enables the precise positioning and installation of the stop plate 5.

[0043] Furthermore, the inner wall of the crushing box 1 is provided with an arc-shaped mounting groove 19, which is positioned directly opposite the discharge port 11. The screening component 4 includes several screen holes 41 and several countersunk holes 42 on both sides. The screening component 4 is installed in the mounting groove 19 by screws, which pass through the countersunk holes 42 and are threaded into the threaded holes on the inner wall of the mounting groove 19.

[0044] Furthermore, the cover 2 is provided with an exhaust port 26, which can be used to exhaust air during crushing.

[0045] In this invention, the multi-size screening and pulverizing mill also includes a drive mechanism for driving the pulverizing blades 33 to rotate. The drive mechanism includes a motor 3 and a coupling 31. One side of the motor 3 is connected to the coupling 31, and one side of the coupling 31 is connected to the pulverizing blades 33 via an output shaft 32. A conical base 16 is integrally extended from the bottom side of the pulverizing chamber 1. The interior of the base 16 has a limiting hole 162 and a shaft hole 161 sequentially formed from bottom to top. The shaft hole 161 communicates with the interior of the pulverizing chamber 1. The coupling 31 is disposed in the limiting hole 162, and the output shaft 32 is disposed in the shaft hole 161. Several threaded holes 163 are evenly distributed on the base 16 outside the limiting hole 162. The motor 3 is fixed to the housing by bolts screwed into the threaded holes 163.

[0046] Furthermore, the feed hopper 12 is cone-shaped, and a slot 17 is provided on the feed hopper 12. An insert plate 6 is slidably disposed in the slot 17, and a handle 61 is provided at the upper end of the insert plate 6. The feed hopper 12 is opened and closed by the insert plate 6 to realize the feeding operation.

[0047] In this invention, a vibration motor can also be added to generate high-frequency vibration, which enables the crushed material to be screened more efficiently on the screen.

[0048] In this invention, an electrical control module system can be added. This system connects to the drive motor and the vibration motor, enabling automated control of functions such as equipment start-up, stop, and speed adjustment. It can automatically control the crushing time and stop time according to the required particle size of the material to be crushed, facilitating switching between different particle sizes.

[0049] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-particle-size screening and pulverizing mill, comprising a pulverizing chamber, wherein pulverizing blades are rotatably disposed inside the pulverizing chamber, characterized in that: The crushing box has a feed hopper and several discharge ports evenly distributed around its circumference. The inner wall of the crushing box is detachably equipped with several screening components with different screen hole diameters, and the screening components are respectively positioned opposite the discharge ports. The inner wall of the crushing box is detachably equipped with a stop plate, which is used to block the screening components.

2. The multi-size screening and pulverizing mill according to claim 1, characterized in that: The bottom end of the stop plate is integrally connected to a rotating ring, and the bottom side of the crushing box is provided with a rotating groove, in which the rotating ring is rotatably disposed.

3. The multi-particle-size screening and pulverizing mill according to claim 2, characterized in that: A handle is provided at the upper end of the stop plate.

4. The multi-size screening and pulverizing mill according to claim 3, characterized in that: The upper end of the crushing box is hinged with a cover.

5. The multi-size screening and pulverizing mill according to claim 4, characterized in that: The inside of the cover is evenly distributed with several rod limiting blocks. Two adjacent limiting blocks form a group, and the two limiting blocks form a bayonet. The number of bayonet is the same as the total number of the discharge port and the feed hopper. When the cover closes the crushing box, the handle is accommodated inside the cover and is locked in the bayonet.

6. The multi-size screening and pulverizing mill according to claim 5, characterized in that: The upper end of the limiting block is provided with an arc-shaped guide slope.

7. The multi-size screening and pulverizing mill according to claim 1, characterized in that: The inner wall of the crushing box is provided with an arc-shaped mounting groove, which is positioned directly opposite the discharge port. The screening component is installed in the mounting groove by screws.

8. The multi-size screening and pulverizing mill according to claim 4, characterized in that: The cover is provided with an exhaust port.

9. The multi-size screening and pulverizing mill according to claim 1, characterized in that: It also includes a drive mechanism for driving the crushing blade to rotate. The drive mechanism includes a motor and a coupling. One side of the motor is connected to the coupling, and one side of the coupling is connected to the crushing blade through an output shaft. A conical base is integrally extended from the bottom side of the crushing box. The interior of the base has a limit hole and a shaft hole sequentially formed from bottom to top. The shaft hole communicates with the interior of the crushing box. The coupling is disposed in the limit hole, and the output shaft is disposed in the shaft hole.

10. The multi-particle-size screening and pulverizing mill according to claim 1, characterized in that: The feed hopper is provided with a slot, and a plate is slidably installed in the slot.

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