A multi-stage pulverizer

Abstract

The utility model discloses a multistage pulverizer belongs to the technical field of pulverizer, a multistage pulverizer, including the pulverizer box still includes: the two groups of rubbing rollers of interlaced setting in the inside of pulverizer box, the lateral wall of pulverizer box is provided with the drive mechanism, the drive mechanism is used to rotate the connection to rubbing roller, the both sides of pulverizer box are opened to have the guide groove, the inside slide coupling of guide groove has extrusion and crushes, through fixed link, rotary lever drive slide link reciprocating sliding along the guide groove, drive extrusion board to carry out the preliminary extrusion and breakage to medicinal material, subsequently two groups of rubbing rollers of interlaced setting carry out secondary refinement to the medicinal material after pre -treatment, form progressive type pulverization process, this structure can adapt the different texture of traditional single -stage pulverization's particle size uneven problem, ensure that the medicinal material particle size is consistent, and promote the homogeneity of subsequent processing, preparation ingredient distribution.

Description

Technical Field

[0001] This utility model relates to the field of pulverizer technology, and in particular to a multi-stage pulverizer. Background Technology

[0002] In the field of traditional Chinese medicine processing, pulverizers are key equipment for refining medicinal materials and improving the extraction efficiency of active ingredients. Their pulverizing effect directly affects subsequent processing, preparation quality, and medicinal value. Currently, traditional medicinal material pulverizers have significant limitations in practical applications: Traditional herbal medicine grinders mostly rely on a single-stage grinding structure, processing herbs in a single grinding operation. Due to the wide variety of Chinese medicinal herbs and their significant differences in texture—for example, root and rhizome herbs are hard, flower and leaf herbs are brittle, and vine herbs are rich in fiber—single-stage grinding is insufficient to handle the diverse characteristics of these herbs. This results in uneven particle size after grinding, often with some herbs being over-ground into fine powder while others remain coarse particles. This directly affects the uniformity of the herbal components, thereby reducing the stability of subsequent extraction and preparation processes.

[0003] Meanwhile, for coarse-grained medicinal materials that do not meet the standards after single-stage grinding, manual screening and repeated grinding are required. This not only increases the number of operation steps and labor costs, and prolongs the production cycle, but also causes the effective components of the medicinal materials to be easily lost due to mechanical friction and heat generation, reducing the medicinal value of the materials. In addition, although some equipment is equipped with simple screens, it lacks an effective anti-clogging and automatic circulation mechanism. The screens are easily entangled by fibrous medicinal materials or blocked by sticky components, resulting in low screening efficiency and the inability to achieve efficient separation of qualified fine powder from coarse particles, further exacerbating the problem of unstable grinding quality.

[0004] Therefore, in order to address this problem, this utility model presents a multi-stage pulverizer. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a multi-stage crusher.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A multi-stage pulverizer includes a pulverizing chamber and two sets of pulverizing rollers staggered inside the pulverizing chamber. A driving mechanism is provided on the side wall of the pulverizing chamber for rotatingly connecting the pulverizing rollers. Guide grooves are provided on both sides of the pulverizing chamber, and a compression pulverizer is slidably connected inside the guide grooves. The compression pulverizer includes a rotating disk fixed to the end of the pulverizing roller. A fixed rod is fixedly connected to the surface of the rotating disk, and a rotating rod is slidably connected to the surface of the fixed rod. The rotating rod is rotatably connected to the side wall of the pulverizing chamber via a rotating shaft. A sliding rod is slidably connected inside the rotating rod, and the sliding rod slides inside the guide groove. An extrusion plate is fixedly connected to the end of the sliding rod.

[0007] Preferably, the drive mechanism includes a servo motor fixed to the side wall of the crushing box, the output end of the servo motor is fixedly connected to a main gear, the surface of the main gear is meshed with a secondary gear, and both the main gear and the secondary gear are fixed to the ends of the two sets of crushing rollers.

[0008] Preferably, the drive mechanism further includes a striking rod that rotates inside the crushing chamber, and the secondary gear is used to drive the end of the striking rod.

[0009] Preferably, the striking rod includes a drive shaft that rotates inside the crushing chamber, and a plurality of connecting ropes are fixed to the surface of the drive shaft, with striking balls fixedly connected to the ends of the plurality of connecting ropes.

[0010] Preferably, the inner wall of the crushing box is fixedly connected with a filter screen, the filter screen is located directly below the crushing roller, and the filter screen is in contact with the surface of the hitting ball.

[0011] Preferably, a guide plate is fixedly connected inside the crushing box, and a discharge port is fixedly connected to the side wall of the crushing box, with the discharge port located on one side of the guide plate.

[0012] Preferably, a lifting mechanism is fixedly connected to the back of the crushing box, and the lifting mechanism is located on one side of the filter screen.

[0013] Preferably, the lifting mechanism includes a fixed cylinder disposed on the back of the crushing box, the inner wall of the fixed cylinder is rotatably connected to an auger via a drive unit, and the surface of the fixed cylinder is respectively fixedly connected to a feed pipe and a discharge pipe, both of which are fixed to the back of the crushing box.

[0014] Compared with the prior art, this utility model provides a multi-stage pulverizer with the following advantages: 1. In the extrusion crushing process, as the rotating disc rotates with the crushing roller, the sliding rod is driven by the fixed rod and the rotating rod to slide back and forth along the guide groove, which drives the extrusion plate to initially crush the medicinal materials. Subsequently, two sets of staggered crushing rollers further refine the pre-treated medicinal materials, forming a progressive crushing process. This structure can be adapted to Chinese medicinal materials of different textures such as rhizomes, flowers and leaves, and vines, solving the problem of uneven particle size in traditional single-stage crushing, ensuring that the particle size of medicinal materials is consistent, and improving the uniformity of component distribution in subsequent processing and preparation. 2. The filter screen can screen the crushed medicinal materials in real time. The qualified fine powder falls through the screen holes to the guide plate and is collected through the discharge port. The unqualified coarse particles enter the fixed cylinder through the feed pipe of the lifting mechanism and are sent back to the crushing box for re-crushing under the drive of the auger. This process does not require manual screening and return of materials, which shortens the production cycle and reduces the mechanical friction heat generated by repeated processing, thus reducing the risk of loss of effective ingredients in the medicinal materials. 3. In the drive mechanism, the drive shaft of the striking rod is driven by the secondary gear to rotate, so that the striking ball at the end of the connecting rope continuously strikes the surface of the filter screen. This effectively prevents fibrous medicinal materials from entangled or sticky components from clogging the screen holes, ensuring efficient and stable screening. It also avoids the impact of continuous high temperature on medicinal materials due to clogging and retention, reduces the loss of heat-sensitive components such as volatile oils and glycosides, and protects the medicinal value of Chinese medicinal materials. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a multi-stage pulverizer proposed in this utility model; Figure 2 This is a schematic diagram of the extrusion crushing structure of a multi-stage crusher proposed in this utility model; Figure 3 This is a schematic diagram of the drive mechanism structure of a multi-stage pulverizer proposed in this utility model; Figure 4 This is a cross-sectional structural diagram of a multi-stage crusher proposed in this utility model.

[0016] In the diagram: 1. Crushing box; 11. Filter screen; 12. Guide plate; 13. Discharge port; 2. Crushing roller; 3. Drive mechanism; 31. Servo motor; 32. Main gear; 33. Secondary gear; 34. Impact rod; 341. Drive shaft; 342. Connecting rope; 343. Impact ball; 4. Guide groove; 5. Extrusion crushing; 51. Rotary disc; 52. Fixed rod; 53. Rotating rod; 54. Sliding rod; 55. Extrusion plate; 6. Lifting mechanism; 61. Fixed cylinder; 62. Screwdriver; 63. Feed pipe; 64. Discharge pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Example 1: Reference Figures 1-4 A multi-stage pulverizer includes a pulverizing chamber 1 and two sets of pulverizing rollers 2 arranged alternately inside the pulverizing chamber 1. A drive mechanism 3 is provided on the side wall of the pulverizing chamber 1, which is rotatably connected to the pulverizing rollers 2. Guide grooves 4 are provided on both sides of the pulverizing chamber 1, and a compression pulverizer 5 is slidably connected inside the guide grooves 4. The compression pulverizer 5 includes a rotating disk 51 fixed to the end of the pulverizing rollers 2. A fixing rod 52 is fixedly connected to the surface of the rotating disk 51, and a rotating rod 53 is slidably connected to the surface of the fixing rod 52. The rotating rod 53 is connected to the pulverizer... The side wall of the crushing box 1 is rotatably connected by a rotating shaft. A sliding rod 54 is slidably connected inside the rotating rod 53. The sliding rod 54 slides inside the guide groove 4, and the end of the sliding rod 54 is fixedly connected to the extrusion plate 55. A filter screen 11 is fixedly connected to the inner wall of the crushing box 1. The filter screen 11 is located directly below the crushing roller 2, and the filter screen 11 is in contact with the surface of the striking ball 343. A guide plate 12 is fixedly connected inside the crushing box 1. A discharge port 13 is fixedly connected to the side wall of the crushing box 1. The discharge port 13 is located on one side of the guide plate 12.

[0020] In this invention, during use, the medicinal materials are first placed into the pulverizing chamber 1. Then, driven by the pulverizing roller 2, the medicinal materials are pulverized. The pulverizing roller 2 continues to rotate under the operation of the drive mechanism 3 on the side wall of the pulverizing chamber 1, thus pulverizing the medicinal materials. Simultaneously, the operation of the pulverizing roller 2 drives the internal extrusion pulverizer 5 of the drive mechanism 3 to operate. As the rotating disk 51 rotates with the pulverizing roller 2, it simultaneously drives the surface fixing rod 52 and the rotating rod. When the rotating rod 53 is working, the sliding rod 54 and the extrusion plate 55 can be moved back and forth. When the extrusion plate 55 is in a forward and backward position, the medicinal materials can be initially crushed. Under the multi-stage crushing treatment of the medicinal materials, the particle size is ensured to be uniform, the difference in component distribution is reduced, and the product quality of the crushed medicinal materials is further improved. Then, with the setting of the filter screen 11, the crushed medicinal materials can be screened, so that the qualified medicinal materials fall onto the surface of the guide plate 12, and then are conveyed to the discharge port 13 for discharge and collection treatment.

[0021] Example 2: Reference Figures 1-4 Similar to Embodiment 1, but further: the drive mechanism 3 includes a servo motor 31 fixed to the side wall of the crushing box 1. The output end of the servo motor 31 is fixedly connected to a main gear 32. The surface of the main gear 32 is meshed with a secondary gear 33. Both the main gear 32 and the secondary gear 33 are fixed to the ends of the two sets of crushing rollers 2. The drive mechanism 3 also includes a striking rod 34 rotating inside the crushing box 1. The secondary gear 33 is used to drive the end of the striking rod 34. The striking rod 34 includes a drive shaft 341 rotating inside the crushing box 1. Several connecting ropes 342 are fixed to the surface of the drive shaft 341. The ends of the several connecting ropes 342 are fixedly connected to striking balls 343. Filter screens 11 are fixedly connected to the inner wall of the crushing box 1. The filter screens 11 are located directly below the crushing rollers 2, and the filter screens 11 are in contact with the surface of the striking balls 343.

[0022] With the drive mechanism 3 in place, when the servo motor 31 drives the main gear 32 to rotate, the main gear 32 can drive the surface-meshing auxiliary gear 33 to rotate synchronously. Since the main gear 32 and the auxiliary gear 33 are both fixed at the end of the crushing roller 2, they can synchronously drive the two sets of crushing rollers 2 to rotate, thus ensuring that the crushing roller 2 can crush the medicinal materials. Furthermore, the rotation of the auxiliary gear 33 can synchronously drive the striking rod 34 to rotate. With the rotation of the drive shaft 341, several connecting ropes 342 and striking balls 343 on the surface can rotate synchronously. During the rotation of the striking balls 343, they can strike the bottom of the filter screen 11, causing the filter screen 11 to vibrate, thereby accelerating the sieving efficiency of the filter screen 11 and preventing the filter holes of the filter screen 11 from becoming clogged. The filter screen 11 is used to sieve the crushed medicinal materials.

[0023] As a supplementary explanation, both the striking rod 34 and the secondary gear 33 have synchronous pulleys on their surfaces. The surfaces of the synchronous pulleys mesh with a synchronous belt. When the synchronous pulleys on the surface of the secondary gear 33 rotate, they can synchronously drive the surface of the striking rod 34 to rotate synchronously.

[0024] Example 3: Reference Figure 4 Similar to Example 1, but further: a lifting mechanism 6 is fixedly connected to the back of the crushing box 1. The lifting mechanism 6 is located on one side of the filter screen 11. The lifting mechanism 6 includes a fixed cylinder 61 disposed on the back of the crushing box 1. An auger 62 is rotatably connected to the inner wall of the fixed cylinder 61 through a drive unit. A feed pipe 63 and a discharge pipe 64 are fixedly connected to the surface of the fixed cylinder 61 respectively. Both the feed pipe 63 and the discharge pipe 64 are fixed to the back of the crushing box 1.

[0025] With the lifting mechanism 6 in place, when the auger 62 inside the fixed cylinder 61 rotates, the medicinal materials that cannot be filtered by the filter screen 11 can be discharged into the feed pipe 63. Then, with the auger 62 rotating, the medicinal materials at the bottom of the fixed cylinder 61 are conveyed upwards. With the discharge pipe 64 on the side wall of the fixed cylinder 61, the upwardly conveyed medicinal materials can be discharged back into the crushing box 1, thereby crushing the medicinal materials again to ensure the quality of the crushed medicinal materials.

[0026] In addition, the top drive unit of the auger 62 is an AC motor, and the inlet position of the feed pipe 63 is flush with the discharge port of the filter screen 11, so that the uncrushed medicinal materials can be recycled and crushed again. The inclination angle of the feed pipe 63 can be set from 0 degrees to 45 degrees, with 15 degrees being preferred. A 15-degree inclination angle of the feed pipe 63 can better facilitate the automatic collection of uncrushed medicinal materials under gravity.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage pulverizer, comprising a pulverizing chamber (1), characterized in that, Also includes: Two sets of crushing rollers (2) are staggered inside the crushing box (1). A drive mechanism (3) is provided on the side wall of the crushing box (1). The drive mechanism (3) is used to rotate the crushing rollers (2). Guide grooves (4) are provided on both sides of the crushing box (1). Extrusion crushing (5) is slidably connected inside the guide grooves (4). The extrusion crushing (5) includes a rotating disk (51) fixed to the end of the crushing roller (2). A fixed rod (52) is fixedly connected to the surface of the rotating disk (51). A rotating rod (53) is slidably connected to the surface of the fixed rod (52). The rotating rod (53) is rotatably connected to the side wall of the crushing box (1) through a rotating shaft. A sliding rod (54) is slidably connected inside the rotating rod (53). The sliding rod (54) slides inside the guide groove (4), and the end of the sliding rod (54) is fixedly connected to an extrusion plate (55).

2. The multi-stage pulverizer according to claim 1, characterized in that, The drive mechanism (3) includes a servo motor (31) fixed to the side wall of the crushing box (1). The output end of the servo motor (31) is fixedly connected to a main gear (32). The surface of the main gear (32) is meshed with a secondary gear (33). The main gear (32) and the secondary gear (33) are both fixed to the ends of the two sets of crushing rollers (2).

3. A multi-stage pulverizer according to claim 2, characterized in that, The drive mechanism (3) also includes a striking rod (34) that rotates inside the crushing chamber (1), and the secondary gear (33) is used to drive the end of the striking rod (34).

4. A multi-stage pulverizer according to claim 3, characterized in that, The striking rod (34) includes a drive shaft (341) that rotates inside the crushing box (1). Several connecting ropes (342) are fixed on the surface of the drive shaft (341), and each of the ends of the several connecting ropes (342) is fixedly connected to a striking ball (343).

5. A multi-stage pulverizer according to claim 1, characterized in that, The inner wall of the crushing box (1) is fixedly connected with a filter screen (11), the filter screen (11) is located directly below the crushing roller (2), and the filter screen (11) is in contact with the surface of the hitting ball (343).

6. A multi-stage pulverizer according to claim 1, characterized in that, The crushing box (1) is fixedly connected to a guide plate (12), and the side wall of the crushing box (1) is fixedly connected to a discharge port (13), which is located on one side of the guide plate (12).

7. A multi-stage pulverizer according to claim 1, characterized in that, A lifting mechanism (6) is fixedly connected to the back of the crushing box (1), and the lifting mechanism (6) is located on one side of the filter screen (11).

8. A multi-stage pulverizer according to claim 7, characterized in that, The lifting mechanism (6) includes a fixed cylinder (61) disposed on the back of the crushing box (1). The inner wall of the fixed cylinder (61) is rotatably connected to an auger (62) via a drive unit. The surface of the fixed cylinder (61) is fixedly connected to a feed pipe (63) and a discharge pipe (64). The feed pipe (63) and the discharge pipe (64) are both fixed on the back of the crushing box (1).

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