A pulverizing unit with multiple screening channels, a pulverizer with the unit and a pulverizing method

Abstract

The present invention discloses a multi-channel screening and pulverizing unit, a pulverizer with the unit and a pulverizing method, and the present invention relates to the technical field of pulverizers. The multi-channel screening and pulverizing unit, the pulverizer with the unit and the pulverizing method are provided by arranging a pulverizing blade assembly in a coarse-grained pulverizing chamber, a medium-grained pulverizing chamber and a fine-grained pulverizing chamber, and the length of the pulverizing blade in each pulverizing blade assembly increases sequentially. According to the principle that the longer the blade length and the more the number of cutting edges, the smaller the pulverized particles, the pulverizing blade assemblies in the coarse-grained pulverizing chamber, the medium-grained pulverizing chamber and the fine-grained pulverizing chamber have the advantages of gradually increasing pulverizing intensity and gradually decreasing pulverized particle size, further improving the pulverizing efficiency of Chinese medicinal materials, and the cylinder and the pulverizing shaft are of split design and connected by a locking nut, so that the pulverizing blade can be disassembled and replaced after being worn, avoiding the situation of replacing the pulverizing blade assembly as a whole, thereby saving the use cost.

Description

Technical Field

[0001] The invention relates to the technical field of pulverizers, in particular to a pulverizing unit with multiple screening channels, a pulverizer with the unit and a pulverizing method. Background Art

[0002] In the process of making Chinese patent medicine, in order to fully exert the efficacy of the medicine, the medicinal materials need to be crushed by crushing equipment. When crushing Chinese medicinal materials, the existing Chinese medicinal material crusher often cannot completely crush the medicinal materials, and there will be particles of different sizes. The incompletely crushed medicinal materials are mixed into the medicinal material powder, which directly affects the quality of the medicinal materials, resulting in the need to screen out large particles again and put them into the crushing process again, which leads to a long crushing process and reduces the efficiency of medicinal material crushing. For this reason, the present invention proposes a multi-pass screening and crushing unit, a crusher with this unit, and a crushing method to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a multi-channel screening and crushing unit, a grinder with the unit and a crushing method, which solves the problem that the existing Chinese medicinal material grinder cannot completely crush the medicinal materials when crushing the Chinese medicinal materials, resulting in particles of different sizes. The incompletely crushed medicinal materials are mixed into the medicinal material powder, which directly affects the quality of the medicinal materials, resulting in the need to screen out large particles again and put them into the crushing process again, thereby causing the crushing process to be too long and reducing the efficiency of the medicinal material crushing.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: In the first aspect, a multi-channel screening and crushing unit comprises a supporting cylinder, a conical discharge pipe for outputting Chinese medicinal material powder is fixedly connected to the bottom of the supporting cylinder, and support frames are fixedly connected to both sides of the outer wall of the supporting cylinder, and discharge guide plates are fixedly connected on the opposite side walls of the support frames on both sides and below the conical discharge pipe, and the first and second protective plates are detachably provided at both ends of the supporting cylinder by bolts, and a crushing mechanism for crushing Chinese medicinal materials is arranged inside the supporting cylinder and on the opposite side walls of the first and second protective plates and rotates together, a feeding operation port for adding medicinal materials is formed between the top of the first protective plate and the inner cavity of the supporting cylinder, a servo motor and a control panel are fixedly arranged on the outer wall of the second protective plate, an adjusting chamber is formed between the crushing mechanism and the inner wall of the supporting cylinder cavity, an arc-shaped driving plate is fixedly arranged on the inner wall of the supporting cylinder and inside the adjusting chamber, and a gear ring is fixedly arranged on one side of the inner body of the supporting cylinder cavity.

[0005] Preferably, the pulverizing mechanism comprises a pulverizing cylinder and a first sealing plate and a second sealing plate detachably connected at both ends of the pulverizing cylinder by bolts, a feeding port for adding Chinese medicinal materials is provided on an outer wall of the second sealing plate away from the first sealing plate, a sealing plug is threadedly connected inside the feeding port, a transmission shaft is arranged inside the pulverizing cylinder, a partition plate and a first screening component, a second screening component and a third screening component for screening Chinese medicinal materials are respectively arranged on the outer wall of the transmission shaft, and useful A coarse-grained grinding chamber for storing coarse particles of Chinese medicinal materials, a medium-grained grinding chamber for storing medium particles of Chinese medicinal materials, a fine-grained grinding chamber for storing fine particles of Chinese medicinal materials is formed between the second screening component and the third screening component, and a crushing knife assembly for crushing Chinese medicinal materials is rotatably arranged inside the coarse-grained grinding chamber, the medium-grained grinding chamber and the fine-grained grinding chamber, a discharge port for discharging Chinese medicinal material powder is provided on the outer wall of the crushing cylinder and between the partition and the third screening component, and a balance gear meshing with the gear ring is rotatably connected to the outer wall of the first sealing plate.

[0006] Preferably, one end of the transmission shaft slides through the first sealing plate and is fixedly connected to the output shaft of the servo motor, and the other end of the transmission shaft slides through the second sealing plate and forms a detachable rotatable connection with the first protective plate.

[0007] Preferably, the crushing knife assembly includes a crushing shaft and a driving gear fixedly connected to one end of the crushing shaft and meshing with a gear ring, and a stud fixedly connected to the other end of the crushing shaft, guide grooves are evenly opened on the outer wall of the crushing shaft, and a cylinder is slidably sleeved on the outer wall of the crushing shaft, a plurality of crushing blades are evenly fixedly connected to the outer wall of the cylinder, guide blocks matching the guide grooves are equidistantly fixedly connected to the inner wall of the cylinder, a locking nut is threadedly sleeved on the external side of the stud for limiting the position of the cylinder relative to the crushing shaft, and the lengths of the crushing blades located in the coarse-grained crushing chamber, the medium-grained crushing chamber and the fine-grained crushing chamber increase sequentially.

[0008] Preferably, the first screening assembly includes a screen plate fixedly connected to the outer wall of the transmission shaft and slide rails fixedly connected to both sides of the outer wall of the screen plate, a baffle is slidably sleeved on the outer walls of the two slide rails, an arc block is fixedly connected to the end of the baffle away from the screen plate, a spring is fixedly connected between the arc block and the outer wall of the crushing barrel, and bristles are evenly fixedly provided on the opposite side walls of the baffle and the screen plate.

[0009] Preferably, the first screening component, the second screening component and the third screening component are identical in structure except that the screening particle sizes decrease successively, and the baffle slides through the crushing cylinder and extends to the outside.

[0010] Preferably, the arc-shaped driving plate is provided with rounded corners at both ends and has a thickness of three centimeters.

[0011] In a second aspect, the present invention further discloses a pulverizer with a pulverizing unit, including a pulverizing unit with multiple screening channels.

[0012] In a third aspect, the present invention further discloses a pulverizing method of a pulverizer with a multi-channel screening pulverizing unit, the method comprising the following steps:

[0013] Step 1: Pre-treatment for crushing: Use a cleaning device to clean the Chinese medicinal materials, and then use a drying device to dry the Chinese medicinal materials. After drying, cool them for standby use. Before crushing, press the reset button inside the control panel, and put the Chinese medicinal materials into the crushing mechanism through the Chinese medicinal materials feeding port on the crushing mechanism;

[0014] Step 2: Crushing: Use the control panel to start the servo motor to drive the crushing mechanism to rotate. Since the crushing structure inside the crushing mechanism is driven by the gear ring to rotate, the Chinese medicinal materials inside are crushed;

[0015] Step 3: Collecting medicinal materials: After crushing, the Chinese medicinal material particles that meet the requirements fall onto the top of the discharge guide plate through the conical discharge pipe, and the Chinese medicinal material particles slide down from both sides of the top of the discharge guide plate due to gravity.

[0016] Preferably, the servo motor rotates at a constant speed of 60 r / min.

[0017] Beneficial Effects

[0018] The invention provides a multi-channel screening and pulverizing unit, a pulverizer with the unit and a pulverizing method.

[0019] Compared with the prior art, it has the following beneficial effects:

[0020] 1. A multi-pass screening and crushing unit, a crusher with the unit and a crushing method, wherein a conical discharge pipe for discharging Chinese medicinal material powder is fixedly connected to the bottom of a bearing cylinder, and support frames are fixedly connected to both sides of the outer wall of the bearing cylinder, and discharge guide plates are fixedly connected to the opposite side walls of the support frames on both sides and located below the conical discharge pipe, and the first and second protective plates are detachably provided at both ends of the bearing cylinder through bolts, and a crushing mechanism for crushing Chinese medicinal materials is provided inside the bearing cylinder and on the opposite side walls of the first and second protective plates and rotates together, and a feeding operation is formed between the top of the first protective plate and the inner cavity of the bearing cylinder to facilitate the operation of adding medicinal materials A servo motor and a control panel are fixedly arranged on the outer wall of the second protective plate, an adjusting cavity is formed between the grinding mechanism and the inner wall of the bearing cylinder cavity, an arc-shaped driving plate is fixedly arranged on the inner wall of the bearing cylinder and inside the adjusting cavity, and a gear ring is fixedly arranged on one side of the bearing cylinder cavity, which solves the problem that the existing Chinese medicinal material grinders cannot completely crush the medicinal materials when crushing the Chinese medicinal materials, and there will be particles of different sizes. The incompletely crushed medicinal materials are mixed into the medicinal material powder, which directly affects the quality of the medicinal materials, resulting in the need to screen out large particles again and put them into the grinding process again, thereby resulting in a long grinding process and reducing the efficiency of medicinal material grinding.

[0021] 2. A multi-pass screening and crushing unit, a crusher with the unit and a crushing method, wherein a coarse-grained crushing chamber, a medium-grained crushing chamber and a fine-grained crushing chamber are arranged in the crushing mechanism, so that after the Chinese medicinal materials are crushed in the coarse-grained crushing chamber, the Chinese medicinal materials particles that meet the screening requirements of the first screening component inside the coarse-grained crushing chamber enter the medium-grained crushing chamber under the action of gravity, and then are screened by the second screening component. Only a part of the Chinese medicinal materials particles that meet the screening requirements enter the fine-grained crushing chamber under the action of gravity, and are crushed again and output. The Chinese medicinal materials are crushed three times, and after each crushing, the Chinese medicinal materials can be screened by their own gravity during the rotation of the crushing drum, thereby ensuring the uniformity of the particle size of the crushed Chinese medicinal materials and avoiding affecting the quality of the medicinal materials. Secondly, the present invention has a high degree of automation, and the crushing process does not require manual intervention, which simplifies the crushing process flow and improves the efficiency of medicinal material crushing.

[0022] 3. A multi-pass screening and crushing unit, a crusher with the unit and a crushing method, wherein a crushing knife assembly is arranged in a coarse-grained crushing chamber, a medium-grained crushing chamber and a fine-grained crushing chamber, and the length of the crushing blade in each crushing knife assembly increases successively. According to the principle that the blade length, blade shape and number of cutting edges are directly related to the size of the crushed particles, the longer the blade length and the greater the number of cutting edges, the smaller the crushed particles. Therefore, the crushing knife assembly is arranged in the coarse-grained crushing chamber, the medium-grained crushing chamber and the fine-grained crushing chamber, which has the advantages of gradually increasing the crushing intensity and gradually reducing the crushing particle size, further improving the crushing efficiency of Chinese medicinal materials. Moreover, the cylinder body and the crushing shaft are of split design and are connected by a locking nut. Therefore, the crushing blade can be disassembled and replaced after being worn, avoiding the situation of replacing the crushing knife assembly as a whole, thereby saving the use cost.

[0023] 4. A multi-pass screening and crushing unit, a crusher with the unit and a crushing method, which are connected by meshing of a driving gear and a gear ring. When the crushing barrel rotates, the driving gear and the gear ring form a linkage, thereby achieving the purpose of driving the crushing knife assembly to rotate. There is no need to set a separate driving device for the rotation of the crushing knife assembly, which saves the cost of setting up the driving device and makes the structure simpler, which is convenient for subsequent inspection and maintenance; secondly, the radius of the gear ring is much larger than the driving gear, which can increase its rotation speed during the rotation of the driving gear around it, thereby improving the crushing effect of the Chinese herbal medicine.

[0024] 5. A multi-channel screening and crushing unit, a crusher with such a unit, and a crushing method. Through the arrangement of an arc-shaped driving plate, the baffle can be controlled at a specific position to block or release the screening plate during the rotation of the first screening component, the second screening component, and the third screening component. When blocking, it can prevent small-particle Chinese herbal medicines from flowing back from the medium-particle crushing chamber to the coarse-particle crushing chamber, and small-particle Chinese herbal medicines from flowing back from the fine-particle crushing chamber to the fine-particle crushing chamber, thereby achieving the purpose of timing the opening and closing of the screening plate. The control process has a simple structure, low manufacturing cost, and is convenient for subsequent use and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the second overall three-dimensional structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the explosion structure of the present invention;

[0029] Figure 5It is a schematic diagram of the structure of the meshing state of the ring gear, the driving gear and the balance gear of the present invention;

[0030] Figure 6 This is a schematic diagram of the first explosion structure of the crushing mechanism of the present invention;

[0031] Figure 7 This is a schematic diagram of the second explosion structure of the crushing mechanism of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the crushing knife assembly of the present invention;

[0033] Fig. 9 This is a schematic diagram of the enlarged structure of part A of the present invention;

[0034] Fig.10 This is a schematic diagram of the first explosion structure of the first screening component of the present invention;

[0035] Fig.11 This is a schematic diagram of the second explosion structure of the first screening component of the present invention;

[0036] Fig.12 This is a schematic diagram of the enlarged structure of part B of the present invention.

[0037] In the figure: 1, bearing cylinder; 2, conical discharge pipe; 3, support frame; 4, discharge guide plate; 5, crushing mechanism; 51, crushing cylinder; 52, first sealing plate; 53, second sealing plate; 54, feeding port; 55, sealing plug; 56, transmission shaft; 57, partition; 58, first screening component; 581, screening plate; 582, slide rail; 583, baffle; 584, arc block; 585, spring; 586, bristles; 59, second screening component; 510, third screening component; 511, coarse-grained crushing chamber ; 512, medium-sized particle size crushing chamber; 513, fine-sized particle size crushing chamber; 514, crushing knife assembly; 5141, crushing shaft; 5142, driving gear; 5143, guide groove; 5144, cylinder; 5145, crushing blade; 5146, guide block; 5147, locking nut; 515, discharge port; 516, balance gear; 6, first protective plate; 7, feeding operation port; 8, second protective plate; 9, servo motor; 10, control panel; 11, adjustment chamber; 12, arc-shaped drive plate; 13, gear ring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The present invention provides four technical solutions:

[0040] like Figure 1-5 The first embodiment is shown: a multi-channel screening and crushing unit, comprising a supporting cylinder 1, a conical discharge pipe 2 for outputting Chinese medicinal material powder is fixedly connected to the bottom of the supporting cylinder 1, and support frames 3 are fixedly connected to both sides of the outer wall of the supporting cylinder 1, and discharge guide plates 4 are fixedly connected on the opposite side walls of the support frames 3 on both sides and below the conical discharge pipe 2. The cross-sectional shape of the discharge guide plates 4 in the X-axis direction is an inverted "V" shape, which can ensure that the crushed Chinese medicinal material powder can slide to both sides along the top of the discharge guide plates 4 under the action of gravity. The first and second protective plates 6 and 8 are detachably provided at both ends of the supporting cylinder 1 by bolts, and a crushing mechanism 5 for crushing Chinese medicinal materials is provided inside the supporting cylinder 1 and on the opposite side walls of the first and second protective plates 6 and 8, which rotates together. A feeding operation port 7 is formed between the top of the first protective plate 6 and the inner cavity of the carrier tube 1 for convenient operation of adding medicinal materials. A servo motor 9 and a control panel 10 are fixedly arranged on the outer wall of the second protective plate 8. A switch button for controlling the servo motor 9 to turn on or off and a reset button for the output shaft of the servo motor 9 to restore the original position are arranged inside the control panel 10, ensuring that the coarse-grained crushing chamber 511 can always reach the position opposite to the feeding port 54 after pressing the reset button each time. An adjustment chamber 11 is formed between the crushing mechanism 5 and the inner wall of the cavity of the carrier tube 1. An arc-shaped driving plate 12 is fixedly arranged on the inner wall of the carrier tube 1 and located inside the adjustment chamber 11. The arc-shaped driving plate 12 is provided with rounded corners at both ends and has a thickness of three centimeters. A gear ring 13 is fixedly arranged on one side of the cavity of the carrier tube 1. A discharge port connected to the conical discharge pipe 2 is opened at the bottom of the carrier tube 1.

[0041] like Figure 6-7The second embodiment is shown, which mainly differs from the first embodiment in that: a multi-channel screening and pulverizing unit, the pulverizing mechanism 5 includes a pulverizing barrel 51 and a first sealing plate 52 and a second sealing plate 53 which are detachably connected to both ends of the pulverizing barrel 51 by bolts, a feeding port 54 for adding Chinese medicinal materials is provided on the outer wall of the second sealing plate 53 away from the first sealing plate 52, after the second sealing plate 53 and the pulverizing barrel 51 are installed, the feeding port 54 is connected to the coarse-grained pulverizing chamber 511, that is, when the Chinese medicinal materials are added, they are added into the coarse-grained pulverizing chamber 511, a sealing plug 55 is threadedly connected inside the feeding port 54, and a cross protrusion is provided on the outer wall of the sealing plug 55 away from the second sealing plate 53 for easy tightening or loosening, a transmission shaft 56 is provided inside the pulverizing barrel 51, and a partition plate 57 and a first screening component 58, a second screening component 59, and a third screening component 510 for screening Chinese medicinal materials are respectively provided on the outer wall of the transmission shaft 56. A coarse-grained grinding chamber 511 for storing coarse particles of Chinese medicinal materials and a medium-grained grinding chamber 512 for storing medium particles of Chinese medicinal materials are respectively formed between the component 58 and the partition 57 and the second screening component 59. A fine-grained grinding chamber 513 for storing fine particles of Chinese medicinal materials is formed between the second screening component 59 and the third screening component 510. A crushing knife assembly 514 for crushing Chinese medicinal materials is rotatably arranged inside the coarse-grained grinding chamber 511, the medium-grained grinding chamber 512 and the fine-grained grinding chamber 513. A discharge port 515 for discharging Chinese medicinal material powder is provided on the outer wall of the crushing cylinder 51 and located between the partition 57 and the third screening component 510. A balance gear 516 meshing with the gear ring 13 is rotatably connected to the outer wall of the first sealing plate 52. One end of the transmission shaft 56 slides through the first sealing plate 52 and is fixedly connected to the output shaft of the servo motor 9, and the other end of the transmission shaft 56 slides through the second sealing plate 53 and forms a detachable rotatable connection with the first protective plate 6.

[0042] like Figure 8-9The third embodiment is shown, which is mainly different from the second embodiment in that: a multi-pass screening and crushing unit, the crushing blade assembly 514 includes a crushing shaft 5141 and a driving gear 5142 fixedly connected to one end of the crushing shaft 5141 and meshingly connected to the gear ring 13, and a stud fixedly connected to the other end of the crushing shaft 5141, the outer wall of the crushing shaft 5141 is evenly provided with guide grooves 5143, and the outer wall of the crushing shaft 5141 is slidably sleeved with a cylinder 5144, and the outer wall of the cylinder 5144 is evenly fixedly connected with a plurality of crushing blades 5143. 45. The inner wall of the cylinder 5144 is equidistantly fixedly connected with guide blocks 5146 that match the guide grooves 5143. The external threaded sleeve of the stud is provided with a locking nut 5147 for limiting the position of the cylinder 5144 relative to the crushing shaft 5141. The crushing blades 5145 located in the coarse-grained crushing chamber 511, the medium-grained crushing chamber 512 and the fine-grained crushing chamber 513 increase in length successively. According to the principle that the blade length, blade shape and the number of cutting edges are directly related to the size of the crushed particles, the longer the blade length and the more cutting edges there are, the smaller the crushed particles will be.

[0043] like Figure 10-12 A fourth embodiment is shown, which mainly differs from the third embodiment in that: a multi-channel screening and crushing unit, the first screening component 58 includes a screening plate 581 fixedly connected to the outer wall of the transmission shaft 56 and slide rails 582 fixedly connected to both sides of the outer wall of the screening plate 581, a baffle 583 is slidably sleeved on the outer walls of the two slide rails 582, an arc block 584 is fixedly connected to the end of the baffle 583 away from the screening plate 581, a spring 585 is fixedly connected between the arc block 584 and the outer wall of the crushing barrel 51, bristles 586 are evenly fixedly provided on the opposite side walls of the baffle 583 and the screening plate 581, and the first screening component 58, the second screening component 59 and the third screening component 510 are the same in structure except that the screening particle size decreases successively, and the baffle 583 slides through the crushing barrel 51 and extends to the outside.

[0044] The embodiment of the present invention further discloses a pulverizer with a pulverizing unit, including a pulverizing unit with multiple screening channels.

[0045] The embodiment of the present invention further provides a pulverizing method of a pulverizer with a multi-channel screening pulverizing unit and the pulverizing method of the pulverizer with the unit, the method comprising the following steps:

[0046] Step 1, crushing pretreatment: use the cleaning equipment to clean the Chinese medicinal materials and then use the drying equipment to dry the Chinese medicinal materials. After drying, cool them for standby use. Before crushing, press the reset button inside the control panel 10 and put the Chinese medicinal materials into the crushing mechanism 5 through the Chinese medicinal materials feeding port on the crushing mechanism 5;

[0047] Step 2, crushing: using the control panel 10 to start the servo motor 9 to drive the crushing mechanism 5 to rotate, the servo motor 9 rotates at a constant speed of 60r / min, because the crushing structure inside the crushing mechanism 5 is driven by the gear ring 13 to rotate, the Chinese medicinal materials inside are crushed;

[0048] Step 3, collecting medicinal materials: After being crushed, the Chinese medicinal material particles that meet the requirements fall onto the top of the discharge guide plate 4 through the conical discharge pipe 2, and the Chinese medicinal material particles slide down from both sides of the top of the discharge guide plate 4 due to gravity.

[0049] When in use, first press the reset button on the control panel 10 to control the servo motor 9 to drive the pulverizing mechanism to rotate clockwise to ensure that the feeding port 54 is aligned with the feeding operation port 7, then manually unscrew the sealing plug 55, and put the washed and dried Chinese medicinal materials into the coarse-grained pulverizing chamber 511 through the feeding port 54, then screw the sealing plug 55 into the feeding port 54 again, and then use the switch button on the control panel 10 to turn on the servo motor 9. Since the output shaft of the servo motor 9 is connected to the transmission shaft 56, when the servo motor 9 rotates, the entire pulverizing mechanism is pulverized. The crushing mechanism 5 rotates as a whole. Since the driving gear 5142, the balance gear 516 and the gear ring 13 in the crushing blade assembly 514 are meshed and connected, the balance gear 516 plays a stabilizing role when the crushing cylinder 51 rotates. The driving gear 5142 is driven by the gear ring 13 to rotate while the crushing cylinder 51 rotates synchronously. Since the radius of the gear ring 13 is much larger than the radius of the driving gear 5142, the driving gear 5142 can accelerate the rotation relative to the gear ring 13. After the speed of the crushing blade 5145 increases, the Chinese herbal medicine is crushed.When the first screening component 58 rotates in the gap area between the two ends of the arc-shaped driving plate 12, the Chinese herbal medicine put into the coarse-grained grinding chamber 511 is initially crushed, and the Chinese herbal medicine accumulates on the surface of the screening plate 581 due to gravity. After being initially crushed by the crushing knife component 514, the Chinese herbal medicine particles slightly smaller than the inner diameter of the sieve holes on the surface of the screening plate 581 fall into the medium-grained grinding chamber 512 through the sieve holes on its surface, and the medium-grained Chinese herbal medicine particles are crushed again by the crushing knife component 514 inside the medium-grained grinding chamber 512. The fine-grained Chinese herbal medicine passes through the sieve holes on the surface of the second screening component 59 and enters the large to fine-grained grinding chamber. In the cavity 513, the pulverizing knife assembly 514 located inside the fine-grained pulverizing cavity 513 performs fine pulverization again. When the first screening assembly 58 rotates to contact the arc angle at the bottom end of the arc driving plate 12 and continues to slide along the surface of the arc driving plate 12, the arc block 584 is pushed by the arc driving plate 12 to slide along the surface of the screening plate 581, and the baffle 583 blocks the sieve holes on the surface of the screening plate 581. At the same time, the sieve holes in the second screening assembly 59 and the third screening assembly 510 cannot perform screening work. At the same time, the bristles 586 clean the surface of the screening plate 581 to prevent the surface of the screening plate 581 from The sieve holes are blocked, when the first screening component 58 slides to the lowest point along the inner wall of the arc driving plate 12, the third screening component 510 reaches the uppermost part of the inner wall of the arc driving plate 12, and when the third screening component 510 continues to rotate from this position, the third screening component 510 gradually changes from a state perpendicular to the ground to a state parallel to the horizontal plane, and the arc block 584 loses the push of the arc driving plate 12. Under the elastic force of the spring 585, the baffle 583 moves away from the screening plate 581, and the sieve holes on the surface of the screening plate 581 are exposed, so that screening can be performed again, and the fine-grained Chinese medicinal materials in the fine-grained crushing chamber 513 are fine-grained. Under the action of gravity, it falls into the adjustment chamber 11 through the arc driving plate 12, and falls on the top of the discharge guide plate 4 through the conical discharge pipe 2, and then it can be collected. When the crushing blade 5145 needs to be replaced after long-term use, first remove the first protective plate 6, then remove the second sealing plate 53 from the crushing cylinder 51, expose the crushing knife assembly 514, then unscrew the locking nut 5147, and then pull the cylinder 5144 out from the outer wall of the crushing shaft 5141, then replace the cylinder 5144 and the crushing blade 5145 as a whole, and tighten the locking nut 5147. ;

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel screening and crushing unit, comprising a carrier cylinder (1), characterized in that: A conical discharge pipe (2) for discharging Chinese medicinal material powder is fixedly connected to the bottom of the support cylinder (1), and support frames (3) are fixedly connected to both sides of the outer wall of the support cylinder (1). Discharge guide plates (4) are fixedly connected to the opposite side walls of the support frames (3) on both sides and located below the conical discharge pipe (2). A first protective plate (6) and a second protective plate (8) are detachably provided at both ends of the support cylinder (1) via bolts. A protective plate for crushing Chinese medicinal material powder is provided inside the support cylinder (1) and is located on the opposite side walls of the first protective plate (6) and the second protective plate (8) and is rotatable together. A medicinal material crushing mechanism (5), a feeding operation port (7) for facilitating the operation of adding medicinal materials is formed between the top of the first protective plate (6) and the inner cavity of the carrier cylinder (1), a servo motor (9) and a control panel (10) are fixedly arranged on the outer wall of the second protective plate (8), an adjustment cavity (11) is formed between the crushing mechanism (5) and the inner wall of the cavity of the carrier cylinder (1), an arc-shaped driving plate (12) is fixedly arranged on the inner wall of the carrier cylinder (1) and located inside the adjustment cavity (11), and a gear ring (13) is fixedly arranged on one side of the inner cavity of the carrier cylinder (1); The first screening assembly (58) comprises a screening plate (581) fixedly connected to the outer wall of the transmission shaft (56) and slide rails (582) fixedly connected to both sides of the outer wall of the screening plate (581); a baffle (583) is slidably sleeved on the outer walls of the two slide rails (582); an end of the baffle (583) away from the screening plate (581) is fixedly connected to an arc block (584); The pulverizing mechanism (5) comprises a pulverizing cylinder (51) and a first sealing plate (52) and a second sealing plate (53) which are detachably connected to both ends of the pulverizing cylinder (51) by bolts; a feeding port (54) for adding Chinese medicinal materials is provided on an outer wall of the second sealing plate (53) on a side away from the first sealing plate (52); a sealing plug (55) is threadedly connected to the inside of the feeding port (54); a transmission shaft (56) is provided inside the pulverizing cylinder (51); a partition plate (57) and a first screening component (58), a second screening component (59), and a third screening component (510) for screening Chinese medicinal materials are respectively provided on the outer wall of the transmission shaft (56); the partition plate (57), the first screening component (58), the second screening component (59), and the third screening component (510) are circumferentially distributed inside the pulverizing cylinder (51); the first screening component (56) is provided on the outer wall of the transmission shaft (56); 8) A coarse-grained pulverizing chamber (511) for storing coarse particles of Chinese medicinal materials and a medium-grained pulverizing chamber (512) for storing medium particles of Chinese medicinal materials are respectively formed between the second screening assembly (59) and the third screening assembly (510), and a fine-grained pulverizing chamber (513) for storing fine particles of Chinese medicinal materials is formed between the second screening assembly (59) and the third screening assembly (510). A pulverizing knife assembly (514) for pulverizing Chinese medicinal materials is rotatably arranged inside the coarse-grained pulverizing chamber (511), the medium-grained pulverizing chamber (512) and the fine-grained pulverizing chamber (513). A discharge port (515) for discharging Chinese medicinal material powder is provided on the outer wall of the pulverizing cylinder (51) and is located between the partition (57) and the third screening assembly (510). A balance gear (516) meshing with the gear ring (13) is rotatably connected to the outer wall of the first sealing plate (52).

2. The multi-pass screening and crushing unit according to claim 1, characterized in that: One end of the transmission shaft (56) slides through the first sealing plate (52) and is fixedly connected to the output shaft of the servo motor (9), and the other end of the transmission shaft (56) slides through the second sealing plate (53) and forms a detachable rotation connection with the first protection plate (6).

3. The multi-pass screening and crushing unit according to claim 1, characterized in that: The crushing blade assembly (514) comprises a crushing shaft (5141), a driving gear (5142) fixedly connected to one end of the crushing shaft (5141) and meshingly connected to the gear ring (13), and a stud fixedly connected to the other end of the crushing shaft (5141). The outer wall of the crushing shaft (5141) is evenly provided with guide grooves (5143), and a cylinder (5144) is slidably sleeved on the outer wall of the crushing shaft (5141). The outer wall of the cylinder (5144) is evenly fixedly connected with a plurality of The inner wall of the cylinder (5144) is fixedly connected with guide blocks (5146) matching the guide grooves (5143) at equal intervals. The outer threaded sleeve of the stud is provided with a locking nut (5147) for limiting the position of the cylinder (5144) relative to the crushing shaft (5141). The crushing blades (5145) located in the coarse-grained crushing chamber (511), the medium-grained crushing chamber (512) and the fine-grained crushing chamber (513) are increased in length in sequence.

4. The multi-pass screening and crushing unit according to claim 1, characterized in that: A spring (585) is fixedly connected between the arc-shaped block (584) and the outer wall of the pulverizing cylinder (51), and bristles (586) are evenly and fixedly arranged on the opposite side walls of the baffle plate (583) and the screening plate (581).

5. The multi-pass screening and crushing unit according to claim 4, characterized in that: The first screening assembly (58), the second screening assembly (59) and the third screening assembly (510) have the same structure except that the screening particle sizes decrease in sequence. The baffle (583) slides through the pulverizing cylinder (51) and extends to the outside.

6. The multi-pass screening and crushing unit according to claim 1, characterized in that: The arc-shaped driving plate (12) is provided with rounded corners at both ends and has a thickness of three centimeters.

7. A pulverizer with a pulverizing unit, characterized in that: It comprises a multi-pass screening and crushing unit as described in any one of claims 1 to 6.

8. A method for pulverizing the pulverizer with pulverizing unit according to claim 7, characterized in that: The method comprises the following steps: Step 1: Pre-crushing treatment: After cleaning the Chinese medicinal materials with a cleaning device, the Chinese medicinal materials are dried with a drying device. After drying, the Chinese medicinal materials are cooled for standby use. Before crushing, the reset button inside the control panel (10) is pressed, and the Chinese medicinal materials are placed into the crushing mechanism (5) through the Chinese medicinal materials feeding port on the crushing mechanism (5); Step 2: crushing: using the control panel (10) to start the servo motor (9) to drive the crushing mechanism (5) to rotate, the crushing structure inside the crushing mechanism (5) is driven by the gear ring (13) to rotate, and the Chinese medicinal materials inside are crushed; Step 3: Collecting medicinal materials: After being crushed, the Chinese medicinal material particles that meet the requirements fall onto the top of the discharge guide plate (4) through the conical discharge pipe (2), and the Chinese medicinal material particles slide down from both sides of the top of the discharge guide plate (4) due to the action of gravity.

9. A comminution method with a multi-pass screening and comminution unit according to claim 8, characterized in that: The servo motor (9) rotates at a constant speed of 60 r / min.

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