Solid material uniform pulverizing device

Abstract

The utility model discloses a solid material even smashing device relates to the field of pharmaceutical intermediates. Solid material even smashing device, including processing jar, still include: a plurality of guide rod, circumferential equidistance fixed connection in the inner wall of processing jar, wherein, the guide rod is slidably connected with screen cloth, the utility model discloses, and screen cloth cooperation cam, spring's reciprocating jolt, let material contact with smashing knife multiple times, guarantee smashing evenness, avoid excessive smashing and screen cloth blockage again, realize the automation of smashing flow, and continuous, screen cloth jolt realizes material automatic screening, and qualified material separates in time, the air flow of the air injection hole of external air source, one aspect optimization material distribution promotes screening efficiency, the other side reverse cleaning screen cloth hole, solve the problem of particle jamming, guarantee screening function sustained and stable, reduce manual maintenance, improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical intermediates technology, specifically, it relates to a device for uniformly pulverizing solid materials. Background Technology

[0002] In the process of pulverizing solid materials in pharmaceutical intermediates, achieving uniform pulverization and efficient sieving is the core requirement for improving production quality and efficiency. An ideal pulverizing device should not only be able to crush materials to a suitable particle size, but also have the function of automatic sieving and preventing screen blockage, thereby ensuring the continuity of the pulverizing process, reducing manual intervention, and adapting to the pace of industrial-scale production.

[0003] However, existing solid material crushing equipment still has the following defects in practical applications. Many devices have fixed screen structures and rely solely on the gravity of the material itself for screening, resulting in low screening efficiency and failure to separate qualified materials in a timely manner, affecting the overall production progress. At the same time, when material particles are stuck in the screen mesh, there is a lack of effective cleaning methods, which easily causes screen blockage. Once blocked, operators need to frequently stop the machine to manually clean it, which not only increases labor intensity but also seriously reduces production efficiency. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a solid material uniform crushing device that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A solid material uniform pulverizing device includes a processing tank and further includes: multiple guide rods, circumferentially and equidistantly fixed to the inner wall of the processing tank, wherein a screen is slidably connected to each guide rod, and a limit block is fixedly connected to the upper end of each guide rod; a spring sleeved on the guide rod, one end of which is fixedly connected to the upper end face of the screen, and the other end of which is fixedly connected to the limit block; a rotating shaft rotatably connected inside the processing tank, wherein a cam is fixedly connected to the rotating shaft, and the cam is located below the screen; a rotating shaft rotatably connected to the screen, wherein a pulverizing blade is fixedly installed on the rotating shaft, and a hollow cavity is formed on the rotating shaft, and a hollow rod communicating with the hollow cavity is fixedly installed at the lower end of the rotating shaft, wherein an air jet hole facing the lower end face of the screen is formed on the hollow rod; and an air supply pipe for an external air source, which is connected to the hollow cavity through a rotary joint, the rotary joint being located at the upper end of the rotating shaft.

[0007] Preferably, a bellows sleeve is fitted onto the guide rod, one end of which is fixedly connected to the upper end face of the screen, and the other end is fixedly connected to the limiting block.

[0008] Preferably, the upper end of the processing tank is open, and a cover plate is detachably connected to the upper end of the processing tank by fixing bolts.

[0009] To drive the rotating shaft to rotate the crushing blade and crush the solid material added to the processing tank, a rotating sleeve is rotatably connected to the cover plate. The rotating sleeve is fitted onto the rotating shaft. A protrusion is integrally formed on the inner wall of the rotating sleeve. A guide groove is provided at the upper end of the rotating shaft, and the protrusion is slidably connected in the guide groove. The system also includes a motor fixedly installed on the cover plate. Gears are fixedly installed on the output ends of both the rotating shaft and the motor, and the two gears are meshed together.

[0010] In order to drive the rotating shaft to rotate the cam, preferably, a second motor is fixedly installed on the outer wall of the processing tank, and one end of the rotating shaft is fixedly connected to the output end of the second motor.

[0011] To reduce material residue at the bottom of the tank, preferably, the lower end of the processing tank is provided with a discharge port, and the inner wall of the lower end of the processing tank is conical.

[0012] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0013] In this invention, the screen, in conjunction with the cam and spring, reciprocates and bounces, allowing the material to come into contact with the crushing blade multiple times. This ensures uniform crushing while avoiding over-crushing and screen clogging, thus achieving automation and continuity of the crushing process.

[0014] The screen vibration enables automatic material screening, and qualified materials are separated in a timely manner; the airflow from the jet holes of the external air source optimizes material distribution and improves screening efficiency, while also cleaning the screen holes in reverse to solve the problem of particle blockage, ensuring continuous and stable screening function, reducing manual maintenance, and improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the processing tank of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 This is a utility model Figure 1 Enlarged view of section A;

[0019] Figure 5 This is a utility model Figure 1 Enlarged view of section B.

[0020] In the diagram: 1. Processing tank; 101. Cover plate; 102. Discharge port; 2. Screen; 201. Rotating shaft; 202. Crusher; 203. Rotating sleeve; 204. Guide groove; 205. Gear; 206. Motor 1; 3. Guide rod; 301. Limiting block; 302. Spring; 303. Rotating shaft; 304. Cam; 305. Motor 2; 4. Hollow cavity; 401. Hollow rod; 402. Jet nozzle; 403. Gas supply pipe; 5. Bellows sleeve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] Example 1:

[0023] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A solid material uniform crushing device includes a processing tank 1 and further includes: multiple guide rods 3, circumferentially and equidistantly fixedly connected to the inner wall of the processing tank 1, wherein a screen 2 is slidably connected to the guide rod 3, and a limit block 301 is fixedly connected to the upper end of the guide rod 3; a spring 302 sleeved on the guide rod 3, one end of which is fixedly connected to the upper end face of the screen 2, and the other end is fixedly connected to the limit block 301; a rotating shaft 303, rotatably connected inside the processing tank 1, wherein a cam 304 is fixedly connected to the rotating shaft 303. The wheel 304 is located below the screen 2; the rotating shaft 201 is rotatably connected to the screen 2, wherein the pulverizing blade 202 is fixedly installed on the rotating shaft 201, the rotating shaft 201 has a hollow cavity 4, the lower end of the rotating shaft 201 is fixedly installed with a hollow rod 401 communicating with the hollow cavity 4, and the hollow rod 401 has an air jet hole 402 facing the lower end face of the screen 2; the air supply pipe 403 connected to the external air source is connected to the hollow cavity 4 through a rotary joint, and the rotary joint is located at the upper end of the rotating shaft 201.

[0024] The upper end of the processing tank 1 is open, and a cover plate 101 is detachably connected to the upper end of the processing tank 1 by fixing bolts.

[0025] A rotating sleeve 203 is rotatably connected to the cover plate 101. The rotating sleeve 203 is sleeved on the rotating shaft 201. A protrusion is integrally formed on the inner wall of the rotating sleeve 203. A guide groove 204 is opened at the upper end of the rotating shaft 201, and the protrusion is slidably connected in the guide groove 204. The cover plate 101 also includes a motor 206 fixedly installed on the cover plate 101. Gears 205 are fixedly installed on the output ends of the rotating shaft 201 and the motor 206, and the two gears 205 are meshed together.

[0026] A second motor 305 is fixedly installed on the outer wall of the processing tank 1, and one end of the rotating shaft 303 is fixedly connected to the output end of the second motor 305.

[0027] First, the solid material to be crushed is added into the processing tank 1 through the opening at the top. The cover plate 101 is installed on the top of the processing tank 1 using fixing bolts to seal the processing tank 1.

[0028] When motor 1 (206) and motor 2 (305) are started, the gear 205 at the output end of motor 1 (206) rotates, driving the other gear 205 meshing with it and the rotating shaft 201 to rotate. The crushing blade 202 rotates at high speed with the rotating shaft 201.

[0029] When motor 305 starts, its output torque drives the rotating shaft 303 to rotate. Cam 304 moves in a circular motion with the rotating shaft 303. When cam 304 rotates to contact the lower end face of screen 2, it lifts screen 2, causing screen 2 to slide upwards along guide rod 3, compressing spring 302. Cam 304 continues to rotate, separating from the lower end face of screen 2. The restoring force of spring 302 causes screen 2 to move downwards. This cycle repeats, causing screen 2 to bounce up and down. During this bouncing motion, screen 2 can lift the solid material to be crushed added to the tank. The screen 2 is brought into contact with the high-speed rotating crushing blade 202. Through cutting and impact, large solid materials are broken into smaller pieces. At this time, the crushed material smaller than the mesh size of the screen 2 falls through the mesh under the combined action of gravity and the shaking of the screen 2. The material larger than the mesh size is blocked by the screen 2 and is lifted up when the screen 2 shakes, and then comes into contact with the rotating crushing blade 202 again for secondary crushing. This avoids the accumulation of material and blockage of the screen 2, and also prevents the material from continuously contacting the crushing blade 202 and causing over-crushing, thus ensuring the uniformity of crushing.

[0030] During the crushing process, the external air source is turned on, and the gas is transported through the air supply pipe 403, enters the hollow cavity 4 of the rotating shaft 201 through the rotary joint, and then flows into the hollow rod 401 and is ejected from the jet hole 402. The ejected airflow disturbs the material in the processing tank 1, making the material distribution more uniform and improving the screening efficiency. On the other hand, it impacts the mesh of the screen 2. When material particles are stuck in the mesh of the screen 2 due to screening, the airflow impacts in the opposite direction from the lower end of the mesh, giving the particles an outward force, overcoming the friction and jamming force between the particles and the mesh, and blowing the stuck particles out of the mesh. This achieves reverse cleaning of the mesh of the screen 2, prevents the mesh from clogging, ensures the continuous and stable screening function of the screen 2, and improves production efficiency.

[0031] It should be further explained that during the rotation of cam 304 and hollow rod 401, when cam 304 pushes screen 2 upward, hollow rod 401 and cam 304 are in an interleaved state. When cam 304 separates from screen 2, the positional state of hollow rod 401 and cam 304 (e.g., ...) Figure 1 As shown), therefore, when crushing solid materials, the hollow rod 401 will not interfere with the rotation of the cam 304;

[0032] The gas pipe 403 is a stretchable and retractable hose, so the gas pipe 403 will not interfere with the installation and removal of the cover plate 101.

[0033] Example 2:

[0034] Reference Figure 4 The solid material uniform crushing device is basically the same as that in Example 1. Furthermore, a bellows sleeve 5 is sleeved on the guide rod 3. One end of the bellows sleeve 5 is fixedly connected to the upper end face of the screen 2, and the other end is fixedly connected to the limiting block 301.

[0035] When the screen 2 is lifted upward by the cam 304, the bellows sleeve 5 is compressed. Under the action of the spring 302, the screen 2 returns to its original position downward, and the bellows sleeve 5 is stretched. The bellows sleeve 5, relying on its own telescopic structure, always covers the guide rod 3 and the spring 302 when the screen 2 is moving, preventing dust and fine material particles generated during the crushing process from entering the sliding joint between the guide rod 3 and the screen 2, avoiding the screen 2 from sliding and getting stuck due to particle accumulation, and ensuring the smooth up-and-down reciprocating movement of the screen 2.

[0036] Example 3:

[0037] Reference Figure 1 The solid material uniform crushing device is basically the same as that in Example 1. Furthermore, the lower end of the processing tank 1 is provided with a discharge port 102, and the inner wall of the lower end of the processing tank 1 is conical.

[0038] After the material is crushed, the qualified fine material falls through the screen 2 and is guided by the inclined surface of the conical inner wall at the lower end of the processing tank 1 to flow towards the discharge port 102. Under the action of gravity, the material is discharged from the processing tank 1 through the discharge port 102. The conical inner wall guides the material to converge and discharge, which is smoother and more thorough than the straight cylindrical inner wall, reducing the material residue at the lower end of the processing tank 1 and improving the material utilization rate. At the same time, the discharge port 102 facilitates the collection of qualified crushed material, simplifies the subsequent material collection process, and improves the continuity and efficiency of production.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A device for uniformly pulverizing solid materials, comprising a processing tank (1), characterized in that, Also includes: Multiple guide rods (3) are fixedly connected to the inner wall of the processing tank (1) at equal intervals around the circumference. A screen (2) is slidably connected to the guide rod (3), and a limit block (301) is fixedly connected to the upper end of the guide rod (3). The spring (302) sleeved on the guide rod (3) has one end fixedly connected to the upper end face of the screen (2) and the other end fixedly connected to the limiting block (301); A rotating shaft (303) is rotatably connected inside the processing tank (1), wherein a cam (304) is fixedly connected to the rotating shaft (303), and the cam (304) is located below the screen (2); A rotating shaft (201) is rotatably connected to the screen (2). A crushing blade (202) is fixedly installed on the rotating shaft (201). A hollow cavity (4) is opened on the rotating shaft (201). A hollow rod (401) communicating with the hollow cavity (4) is fixedly installed at the lower end of the rotating shaft (201). An air jet hole (402) facing the lower end face of the screen (2) is opened on the hollow rod (401). The gas supply pipe (403) of the external gas source is connected to the hollow cavity (4) through a rotary joint, which is located at the upper end of the rotating shaft (201).

2. The solid material uniform pulverizing device according to claim 1, characterized in that, The guide rod (3) is fitted with a bellows sleeve (5), one end of which is fixedly connected to the upper end face of the screen (2), and the other end is fixedly connected to the limiting block (301).

3. The solid material uniform pulverizing device according to claim 1, characterized in that, The upper end of the processing tank (1) is open, and a cover plate (101) is detachably connected to the upper end of the processing tank (1) by fixing bolts.

4. The solid material uniform pulverizing device according to claim 3, characterized in that, A rotating sleeve (203) is rotatably connected to the cover plate (101). The rotating sleeve (203) is sleeved on the rotating shaft (201). A protrusion is integrally formed on the inner wall of the rotating sleeve (203). A guide groove (204) is opened at the upper end of the rotating shaft (201). The protrusion is slidably connected in the guide groove (204). It also includes a motor (206) fixedly installed on the cover plate (101). Gears (205) are fixedly installed on the output ends of the rotating shaft (201) and the motor (206), and the two gears (205) are meshed together.

5. The solid material uniform pulverizing device according to claim 1, characterized in that, A second motor (305) is fixedly installed on the outer wall of the processing tank (1), and one end of the rotating shaft (303) is fixedly connected to the output end of the second motor (305).

6. The solid material uniform pulverizing device according to claim 1, characterized in that, The lower end of the processing tank (1) is provided with a discharge port (102), and the inner wall of the lower end of the processing tank (1) is conical.

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