Crushing device for biological enzyme preparation and capable of preventing raw material pollution

Abstract

The invention relates to the technical field of crushing equipment, in particular to a biological enzyme preparation crushing device capable of preventing raw material pollution, which comprises a crushing cylinder, a crushing mechanism and a regulation and control mechanism, the crushing mechanism comprises a driving rod, a fixed end, a movable end, a transmission assembly and a plurality of knife rests, the opening degree of the feeding port is changed through the regulating mechanism to regulate the feeding rate of raw materials, the driving rod is synchronously driven to move in the moving process, and the movable end is driven to move through the driving rod; the plurality of knife rests are expanded or contracted at equal intervals between the fixed end and the movable end, so that the crushing mechanism can realize differentiated crushing aiming at raw materials with different physical properties. The problem of non-uniform crushing caused by one-time dumping is solved, the equipment can flexibly adapt to particle size changes of raw materials by dynamically changing gaps between the knife rests, the phenomena of crushing blind areas and excessive crushing caused by non-uniform feeding are reduced, and the risk of damage to biological enzyme activity is reduced while the crushing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of crushing equipment, in particular to a crushing device for preparing biological enzymes and preventing raw material contamination. Background Art

[0002] Existing bio-enzyme raw material crushing processes primarily rely on two methods for contamination control: performing the crushing operation within a sterile space, and disinfecting and sterilizing the crushed raw materials. However, the former requires the construction of a separate sterile environment, which places extremely high demands on site cleanliness and consumes significant energy. The latter requires additional sterilization equipment and processes, which not only increases energy consumption but also may affect the activity of the raw materials due to secondary processing. Both methods involve energy waste or demanding site requirements.

[0003] In response to the special needs of bio-enzyme preparation, Chinese Patent Authorization Announcement No. CN117680252B discloses a raw material crusher for bio-enzyme preparation, which is equipped with a raw material barrel fixing mechanism and a feeding mechanism. The raw material flows directly into the crushing box through a sliding and docking sealing structure to avoid contamination during the dumping process. The device integrates a crushing box and a grinding box, and switches between crushing and grinding modes by driving an electric cylinder to control the flip plate, and uses a filter screen to control the particle size of the raw material. However, the existing solution still has defects in the adaptability of feed uniformity and crushing efficiency. Since the raw material barrel is inverted on the top of the crushing barrel, the feed speed of the raw material barrel is easily uncontrollable when dumping the raw material, which may cause material accumulation or uneven crushing in the crushing box. At the same time, since the cutters in the crushing barrel are mostly fixed structures, it is difficult to dynamically adjust the cutters according to the real-time feeding status, which affects the processing effect of raw materials with different physical properties. Summary of the Invention

[0004] In response to the above problems, a crushing device for bio-enzyme preparation is provided to prevent raw material contamination. The feed rate of the raw materials is regulated by changing the opening of the feed port through a regulating mechanism. During the movement of the device, a driving rod is synchronously driven to move. The driving rod drives the movement of the moving end, so that multiple tool holders are equidistantly expanded or contracted between the fixed end and the moving end, so that the crushing mechanism can achieve differentiated crushing for raw materials with different physical properties, solving the problem of uneven crushing caused by one-time dumping. By dynamically changing the gap between the tool holders, the equipment can flexibly adapt to changes in the particle size of the raw materials.

[0005] In order to solve the problems of the prior art, the present invention provides a crushing device for preparing bio-enzymes that prevents raw material contamination, comprising a crushing barrel and a crushing mechanism arranged in the crushing barrel, a feed port being provided on the top of the crushing barrel, an inverted raw material bucket being provided on the feed port, and a regulating mechanism for regulating the raw material feeding rate being provided on the feed port; the crushing mechanism comprises a fixed end fixedly connected to the crushing barrel and a movable end capable of moving along the axial direction of the crushing barrel; a plurality of tool holders sliding equidistantly along the axis of the crushing barrel are provided between the fixed end and the movable end, and each tool holder is provided with a plurality of cutting tools; the crushing mechanism is also provided with a driving rod and a transmission assembly for synchronously adjusting the spacing between the plurality of tool holders, one end of the driving rod is connected to the regulating mechanism for transmission, and the other end of the driving rod is connected to the movable end; the transmission assembly is provided on the plurality of tool holders; when the regulating mechanism drives the driving rod to move, the spacing between the tool holders on the crushing mechanism changes with the feed rate.

[0006] Preferably, a rotatable drive shaft is provided in the crushing barrel, and a spline is provided on the surface of the drive shaft. Multiple tool holders are sleeved on the drive shaft. The tool holder is a cylindrical structure. Adjacent tool holders are sleeved on each other to form a telescopic nested structure. The inner wall of the tool holder is provided with a keyway matching the spline.

[0007] Preferably, a mounting shaft is provided on the tool holder, and the transmission assembly includes connecting rod components that are the same in number and one-to-one with the tool holder, each connecting rod component is connected to two adjacent tool holders, and the connecting rod component includes two mounting brackets that can move relative to each other in the horizontal direction, and the two mounting brackets are hinged with connecting rods, and the ends of the two connecting rods that are close to each other are both mounted on the mounting shafts of the adjacent tool holders.

[0008] Preferably, a partition is provided in the tool holder, and a slide groove extending radially along the crushing cylinder is provided on the partition. The transmission assembly also includes a mounting rod arranged between the movable end and the fixed end. The mounting rod is a retractable structure, and the mounting rod is slidably matched with the slide groove. The mounting rod is sleeved on the mounting frame of all connecting rod components.

[0009] Preferably, the regulating mechanism includes a blocking block and a driving assembly, the blocking plate can be slid along the axial direction of the crushing cylinder and is arranged at the feed port, the driving assembly is arranged below the blocking plate, and the driving rod can be moved along the axial direction of the crushing cylinder and is arranged below the driving assembly, and the blocking block and the driving rod are both connected to the driving assembly in a transmission manner.

[0010] Preferably, a first screw extending along the axial direction of the crushing barrel is provided below the blocking block, a first sleeve threadedly matched with the first screw is provided on the first screw, and the first sleeve is transmission-connected to the driving assembly.

[0011] Preferably, the driving rod includes a second screw connected to the movable end and a second sleeve threadedly matched with the second screw, and a positioning piece for fixing is provided on the second sleeve.

[0012] Preferably, a support frame is provided at the bottom of the crushing drum, a rotatable turntable is provided below the support frame, a plurality of fan-shaped screens are evenly distributed along the circumference of the turntable, the apertures of the sieve holes of adjacent screens are arranged in sequence from small to large, and a plurality of baffles matching the screens are provided on the support frame.

[0013] Preferably, a gear ring is provided on the edge of the turntable, a gear meshing with the gear ring is provided in the crushing barrel, and a first rotary drive motor for driving the gear to rotate is provided on the crushing barrel.

[0014] Preferably, the regulating mechanism is provided with a sensor for identifying the raw material.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can rotatably install the regulating mechanism on the feed port, or install the regulating mechanism on the feed port so that it can slide along the axial direction of the feed port, thereby changing the opening of the feed port to accurately control the feed rate of the raw materials. During the movement of the regulating mechanism, the driving rod of the crushing mechanism is synchronously driven to move, thereby pushing or pulling the mobile end connected to the driving rod to move along the axial direction of the crushing cylinder. Through the movement of the mobile end, multiple tool holders can be expanded or contracted equidistantly between the fixed end and the mobile end, ensuring that the spacing between the multiple tool holders can change evenly, driving the spacing of the tools to be adjusted accordingly, so that the crushing mechanism can achieve differentiated crushing for raw materials with different physical properties. It solves the problem of uneven crushing caused by one-time dumping. By dynamically changing the gap between the tool holders, the equipment can flexibly adapt to the particle size changes of the raw materials, reduce the crushing blind spots and over-crushing caused by uneven feeding, and reduce the risk of damage to the activity of the biological enzyme while improving the crushing efficiency.

[0016] 2. Through the coordination of splines and keyways, this invention cleverly decouples the rotational motion of the drive shaft from the axial sliding of the toolholder, achieving both crushing performance and dynamic spacing adjustment, thus avoiding the limitations of traditional fixed toolholders in adapting to varying feed rates. The telescopic nesting of adjacent toolholders enables multi-stage crushing gap adjustment within the limited space of the crushing drum, significantly improving space utilization. This also ensures that the toolholders remain coaxial during sliding, effectively reducing vibration and noise caused by eccentricity and extending the equipment's service life.

[0017] 3. This invention utilizes a support frame, a turntable, and multiple screens to rapidly switch between different mesh sizes without the need for screen removal and replacement, significantly simplifying the process. This makes it particularly suitable for the refined particle size grading required for enzyme preparation. The turntable's uniform circumferential distribution ensures stable and regular rotational switching. Combined with the precise positioning of the baffle, this avoids the chaotic screening caused by the simultaneous operation of multiple mesh sizes, thereby improving screening accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a crushing device for preparing bio-enzymes to prevent raw material contamination.

[0019] Figure 2 The present invention is a schematic diagram of the cross-sectional structure of a crushing device for preparing bio-enzymes to prevent raw material contamination when the regulating mechanism opens the feed port.

[0020] Figure 3 The present invention is a schematic diagram of the three-dimensional cross-sectional structure of a crushing device for preparing bio-enzymes to prevent raw material contamination when the regulating mechanism opens the feed port.

[0021] Figure 4 The present invention is a schematic diagram of the cross-sectional structure of a crushing device for preparing bio-enzymes to prevent raw material contamination when the regulating mechanism closes the feed port.

[0022] Figure 5 The present invention is a schematic diagram of the three-dimensional cross-sectional structure of a crushing device for preparing bio-enzymes to prevent raw material contamination when the regulating mechanism closes the feed port.

[0023] Figure 6 The present invention is a schematic diagram of the three-dimensional structure inside the crushing cylinder of a crushing device for preparing biological enzymes to prevent raw material contamination.

[0024] Figure 7 The present invention is a schematic diagram of the three-dimensional structure of a crushing mechanism in a crushing device for preparing a biological enzyme to prevent contamination of raw materials.

[0025] Figure 8 The present invention is a three-dimensional structural diagram of a blade holder and a transmission component in a crushing device for preparing a bio-enzyme to prevent raw material contamination.

[0026] Figure 9 This is a schematic diagram of the three-dimensional structure of the blade holder in a crushing device for preparing bio-enzymes to prevent raw material contamination. Figure 1 .

[0027] Figure 10 This is a schematic diagram of the three-dimensional structure of the blade holder in a crushing device for preparing bio-enzymes to prevent raw material contamination. Figure 2 .

[0028] The numbers in the figure are: 1. Crushing barrel; 11. Feed inlet; 111. Raw material barrel; 112. Control mechanism; 1121. Blocking block; 11212. First screw; 11213. First sleeve; 1122. Drive assembly; 12. Crushing mechanism; 121. Fixed end; 122. Moving end; 123. Tool holder; 1231. Tool; 1232. Mounting shaft; 1233. Partition; 12331. Slide; 124. Drive rod; 1241. Second screw; 1242. Second sleeve; 125. Transmission assembly; 1251. Connecting rod component; 12511. Connecting rod; 1252. Mounting rod; 1253. Mounting frame; 13. Drive shaft; 14. Support frame; 141. Turntable; 1411. Screen; 1412. Gear ring; 142. Baffle; 15. Gear; 151. First rotary drive motor. DETAILED DESCRIPTION

[0029] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 7 The figure shows a crushing device for preparing bio-enzymes to prevent raw material contamination, comprising a crushing drum 1 and a crushing mechanism 12 arranged in the crushing drum 1. The top of the crushing drum 1 is provided with a feed port 11, an inverted raw material bucket 111 is provided on the feed port 11, and a control mechanism 112 for regulating the feed rate of the raw material is provided on the feed port 11; the crushing mechanism 12 comprises a fixed end 121 fixedly connected to the crushing drum 1 and a movable end 122 capable of moving along the axis of the crushing drum 1; a plurality of equidistant crushing mechanisms are provided between the fixed end 121 and the movable end 122. The tool holder 123 slides along the axis of the cylinder 1, and each tool holder 123 is provided with multiple cutters 1231; the crushing mechanism 12 is also provided with a driving rod 124 and a transmission assembly 125 for synchronously adjusting the spacing between multiple tool holders 123, one end of the driving rod 124 is connected to the regulating mechanism 112 for transmission, and the other end of the driving rod 124 is connected to the movable end 122; the transmission assembly 125 is set on multiple tool holders 123; when the regulating mechanism 112 drives the driving rod 124 to move, the spacing between the tool holders 123 on the crushing mechanism 12 changes with the feed rate.

[0031] When the bio-enzyme raw material needs to be crushed, the raw material enters the feed port 11 at the top of the crushing cylinder 1 through the raw material barrel 111. Since the raw material barrel 111 in the prior art is inverted, although it is convenient for docking and feeding, it is easy to cause the feed rate to be uncontrollable, and it is easy to cause the contact between the raw material and the crushing mechanism 12 to be uneven. The traditional fixed crushing mechanism 12 is difficult to adapt to the crushing needs of raw materials of different sizes. In this device, the regulating mechanism 112 can be rotatably installed on the feed port 11, or the regulating mechanism 112 can be slidably installed on the feed port 11 along the axial direction of the feed port 11. By changing the opening of the feed port 11, the feed rate of the raw material can be accurately controlled. During the movement of the regulating mechanism 112, the driving rod 124 of the crushing mechanism 12 is synchronously driven to move. Since the other end of the driving rod 124 is connected to the movable end 122 of the crushing mechanism 12, the movable end 122 is pushed or pulled to move along the axial direction of the crushing cylinder 1. Since the fixed end 121 is fixedly connected to the crushing cylinder 1 (a bracket may be provided inside the crushing cylinder 1 to be connected thereto), the movement of the movable end 122 enables the multiple tool holders 123 to be equidistantly expanded or contracted between the fixed end 121 and the movable end 122, thereby ensuring that the spacing between the multiple tool holders 123 can change evenly, driving the spacing of the cutters 1231 to be adjusted accordingly, so that the crushing mechanism 12 can achieve differentiated crushing for raw materials with different physical properties.

[0032] Specifically, when the feeding rate increases, the movable end 122 moves away from the fixed end 121, and the spacing between the tool holders 123 expands to match the coarse crushing requirements of rapid feeding; when the feeding rate decreases, the movable end 122 approaches the fixed end 121, and the spacing between the tool holders 123 decreases to achieve fine crushing. Through dynamic adjustment, the spacing between the tool holders 123 is adapted to the feeding rate in real time to ensure that the raw materials can be effectively crushed under different feed amounts.

[0033] Through the linkage setting of the control mechanism 112 and the crushing mechanism 12, the precise movement of the control mechanism 112 avoids the exposure of raw materials and external contamination caused by traditional dumping methods. In conjunction with the closed structure of the crushing barrel 1, the aseptic safety of the bio-enzyme preparation process is significantly improved. At the same time, the synchronous adjustment of the spacing between the multiple tool holders 123 ensures uniform contact between the raw materials and the cutting tools 1231, solving the problem of uneven crushing caused by one-time dumping. By dynamically changing the gap between the tool holders 123, the equipment can flexibly adapt to changes in the particle size of the raw materials, reducing the crushing blind spots and excessive crushing caused by uneven feeding, while improving crushing efficiency and reducing the risk of damage to the activity of the bio-enzyme. Parameter self-adaptation is achieved through mechanical linkage, eliminating the need for a complex electronic control system, combining reliability and cost advantages, and is suitable for efficient, low-damage crushing processes for a variety of bio-enzyme raw materials.

[0034] It should be noted that the above structure is mainly for the initial crushing of biological enzymes, and there are other subsequent processes. The crushing barrel tank can also be configured to be connected with the tanks of other processes to form a complete process.

[0035] like Figures 2 to 8 As shown: a rotatable drive shaft 13 is provided in the crushing barrel 1, and a spline is provided on the surface of the drive shaft 13. A plurality of tool holders 123 are sleeved on the drive shaft 13. The tool holders 123 are cylindrical structures. Adjacent tool holders 123 are sleeved on each other to form a telescopic nested structure. The inner wall of the tool holder 123 is provided with a keyway matching the spline.

[0036] The driving shaft 13 is driven by an external driving mechanism. When the driving shaft 13 rotates, the splines on its surface cooperate with the keyways on the inner wall of the tool holder 123 to transmit the rotational torque of the driving shaft 13 to each tool holder 123, so that all the tool holders 123 rotate synchronously with the rotation of the driving shaft 13, thereby crushing the raw materials in the crushing drum 1.

[0037] Because adjacent tool holders 123 employ a telescopic nesting structure nested within one another, and slide on splines via keyways, when the control mechanism 112 drives the movable end 122 to move axially along the crushing drum 1, the displacement of the movable end 122, via the transmission assembly 125, drives all tool holders 123 to slide synchronously on the drive shaft 13. The coordination of the splines and keyways ensures that the tool holders 123 continuously receive rotational power during sliding, while also ensuring that adjacent tool holders 123 maintain coaxiality during telescopic nesting, allowing the spacing between tool holders 123 to be dynamically and evenly adjusted according to the feed rate. In this process, the cylindrical structure of the tool holders 123 enhances their structural stability during high-speed rotation and sliding, preventing deformation or offset due to uneven force.

[0038] By combining splines with keyways, the rotational motion of the drive shaft 13 is cleverly decoupled from the axial sliding of the tool holder 123, achieving both the crushing function and the need for dynamic spacing adjustment, thus avoiding the limitation of the traditional fixed tool holder 123 being unable to adapt to different feed rates. The telescopic nesting arrangement of adjacent tool holders 123 enables the equipment to adjust the multi-stage crushing gap within the limited space of the crushing barrel 1, significantly improving space utilization. At the same time, it ensures that the tool holder 123 always remains coaxial during the sliding process, effectively reducing vibration and noise caused by eccentricity and extending the service life of the equipment. It is suitable for scenarios where strict requirements are placed on the particle size of raw materials in the preparation of bio-enzymes, providing reliable guarantees for the sterile and efficient crushing of bio-enzyme raw materials.

[0039] like Figures 2 to 10As shown: a mounting shaft 1232 is provided on the tool holder 123, and the transmission assembly 125 includes connecting rod components 1251 that are the same in number and one-to-one with the tool holders 123, each connecting rod component 1251 is connected to two adjacent tool holders 123, and the connecting rod component 1251 includes two mounting brackets 1253 that can move relative to each other in the horizontal direction, and the two mounting brackets 1253 are hinged with connecting rods 12511, and the ends of the two connecting rods 12511 that are close to each other are both sleeved on the mounting shafts 1232 of the adjacent tool holders 123.

[0040] When the control mechanism 112 drives the movable end 122 to move via the drive rod 124, the connecting rod component 1251 of the transmission assembly 125 is activated accordingly, causing the two mounting brackets 1253 of each connecting rod component 1251 to move horizontally relative to each other. Because the mounting brackets 1253 are hingedly connected to the connecting rod 12511, this movement is converted into an angular change in the connecting rod 12511. When the two mounting brackets 1253 move horizontally away from each other, the connecting rod 12511 hinged on the mounting brackets 1253 expands outward and, through its connecting end sleeved on the mounting shaft 1232 of the adjacent tool holder 123, pulls the adjacent tool holders 123 toward each other along the axis of the crushing drum 1, thereby reducing the distance between the two adjacent tool holders 123. When the mounting brackets 1253 move toward each other, the connecting rod 12511 contracts inward, pushing the adjacent tool holders 123 away from each other along the axis, thereby increasing the distance between the two adjacent tool holders 123. Since each connecting rod component 1251 is connected to the adjacent tool holders 123 one by one, and the horizontal movement of the mounting frame 1253 is linked as a whole through the transmission assembly 125, all tool holders 123 can adjust the spacing synchronously and equidistantly, so that the crushing gap between the cutters 1231 on two adjacent tool holders 123 changes dynamically with the feed rate, thereby achieving adaptive crushing of raw materials with different flow rates.

[0041] The transmission assembly 125 utilizes the geometric motion characteristics of the mechanical connecting rod 12511 to convert the horizontal driving force into the adjustment of the spacing of the tool holder 123 in the axial direction of the crushing barrel 1. This allows for the synchronous linkage of multiple tool holders 123 without the need for a complex transmission mechanism, resulting in a compact structure and high transmission efficiency. By providing multiple connecting rod components 1251 corresponding to the tool holders 123, the uniformity and consistency of the adjustment of the spacing between two adjacent tool holders 123 are ensured, thereby avoiding crushing blind spots or equipment vibrations caused by local uneven force. The articulation of the mounting frame 1253 and the connecting rod 12511, as well as the sleeve arrangement of the connecting rod 12511 and the mounting shaft 1232, allow the tool holder 123 to slide freely along the axis while maintaining structural stability when the drive shaft 13 drives the tool holder 123 to rotate, thereby achieving the dual functional compatibility of rotary crushing and spacing adjustment. In addition, the horizontal movement of the mounting frame 1253 effectively utilizes the space inside the crushing drum 1, making the layout of the transmission component 125 more reasonable. Combined with the closed structure of the crushing drum 1, the risk of raw material leakage is further reduced, meeting the stringent requirements for equipment sealing, reliability and crushing accuracy in the process of bio-enzyme preparation.

[0042] like Figures 5 to 10 As shown: a partition 1233 is provided in the tool holder 123, and a slide groove 12331 extending radially along the crushing cylinder 1 is provided on the partition 1233. The transmission assembly 125 also includes a mounting rod 1252 arranged between the movable end 122 and the fixed end 121. The mounting rod 1252 is a retractable structure, and the mounting rod 1252 is slidably matched with the slide groove 12331. The mounting rod 1252 is sleeved on the mounting frame 1253 of all connecting rod components 1251.

[0043] When the regulating mechanism 112 drives the movable end 122 to move along the axis of the crushing cylinder 1, the mounting rod 1252 located between the movable end 122 and the fixed end 121 will be extended and retracted accordingly. At the same time, the two connecting rods 12511 will be folded or unfolded due to the mutually hinged ends. Moreover, since the mounting rod 1252 is sleeved on the mounting bracket 1253 of all the connecting rod components 1251, the mounting rod 1252 will slide along the slide groove 12331 on the partition 1233 while extending and retracting, so that the axial extension and retraction movement of the mounting rod 1252 will be converted into a radial thrust or pull on the mounting bracket 1253. The force is used to realize the movement of multiple mounting brackets 1253. When the mounting rod 1252 is extended, it pulls the mounting bracket 1253 radially inward, so that the two mounting brackets 1253 of the same connecting rod component 1251 move toward each other in the horizontal direction, and the adjacent tool holders 123 are pulled closer to each other along the axial direction through the hinged connecting rod 12511, thereby increasing the distance between the two adjacent tool holders 123; when the mounting rod 1252 is contracted, the radial thrust causes the mounting brackets 1253 to move away from each other, and the connecting rod 12511 pushes the two adjacent tool holders 123 closer together, thereby reducing the distance between the two adjacent tool holders 123.

[0044] During this process, the slide groove 12331 of the partition 1233 provides radial guidance for the mounting rod 1252, ensuring that the telescopic movement of the mounting rod 1252 is accurately transmitted to each mounting frame 1253, realizing the synchronous movement of all connecting rod components 1251, and then driving multiple tool holders 123 to evenly adjust the spacing, so that the crushing gap of the tool 1231 is dynamically matched with the feed rate.

[0045] The geometric characteristics of mechanical transmission are utilized to achieve synchronous and equidistant adjustment of the spacing between multiple tool holders 123. The arrangement of partitions 1233 and chute 12331 not only provides support and guidance for mounting rod 1252, enhancing the stability of the transmission process, but also effectively utilizes the internal space of tool holder 123 through radial layout, making the transmission assembly 125 compact and avoiding the problem of traditional axial transmission occupying excessive space within the crushing drum 1.

[0046] The mounting rod 1252 nests all mounting brackets 1253, ensuring a single power source drives the coordinated movement of all connecting rod components 1251, reducing energy loss in the transmission link and improving the device's responsiveness. Furthermore, the precision-machined sliding fit between the chute 12331 and the mounting rod 1252 reduces friction and extends the device's service life. This, combined with the nested structure of the blade holder 123, further enhances the sealing of the crushing process, preventing raw material leakage and external contamination, thus meeting the dual requirements of a sterile environment and crushing precision for bio-enzyme preparation.

[0047] like Figures 2 to 5 As shown: the regulating mechanism 112 includes a blocking block 1121 and a driving assembly 1122. The blocking block 1121 can slide along the axial direction of the crushing cylinder 1 and is arranged at the feed port 11. The driving assembly 1122 is arranged below the blocking block 1121. The driving rod 124 can move along the axial direction of the crushing cylinder 1 and is arranged below the driving assembly 1122. The blocking block 1121 and the driving rod 124 are both transmission-connected to the driving assembly 1122.

[0048] The drive assembly 1122 is preferably a bidirectional air cylinder, hydraulic cylinder or electric push rod. When the drive assembly 1122 is started, the driving force it outputs is synchronously transmitted to the blocking block 1121 and the driving rod 124 along the axis of the crushing barrel 1, causing the blocking block 1121 to slide along the axis of the feed port 11. By changing the opening of the feed port 11, the raw material feed rate is regulated. At the same time, the driving force is transmitted to the mobile end 122 of the crushing mechanism 12 through the driving rod 124, and the transmission assembly 125 drives the multiple tool holders 123 to synchronously adjust the spacing, so that the crushing gap between the cutters 1231 is dynamically matched to the feed rate. This synchronous drive mechanism ensures that when the feed rate increases, the spacing between the tool holders 123 is correspondingly expanded to meet the crushing requirements of fast feed; when the feed rate decreases, the spacing between the tool holders 123 is synchronously reduced to achieve fine crushing, thereby forming an adaptive closed-loop control system that adapts to the feed rate. This significantly improves the collaborative working efficiency of the equipment. The synchronous transmission of the barrier block 1121 and the drive rod 124 avoids the parameter mismatch errors that can occur with traditional step-by-step adjustment methods, ensuring that the crushing process is always in optimal working condition. The modular layout of the drive assembly 1122 makes the equipment more compact, reduces the use of additional transmission components, and reduces the risk of failure and maintenance costs. This meets the adaptability requirements of the bio-enzyme preparation process to different working environments, enabling simultaneous adjustment of multiple parameters through a single power input, providing reliable guarantees for the efficient and precise crushing of bio-enzyme raw materials.

[0049] It should be noted that the driving assembly 1122 can also be configured as other driving structures to drive the blocking block 1121 to move, and linkage is achieved by directly connecting the blocking block 1121 to the driving rod 124 of the crushing mechanism 12.

[0050] like Figures 2 to 5 As shown, a first screw 11212 extending along the axial direction of the crushing cylinder 1 is provided below the blocking block 1121 , a first sleeve 11213 threadedly engaged with the first screw 11212 is provided on the first screw 11212 , and the first sleeve 11213 is transmission-connected to the driving assembly 1122 .

[0051] After the drive assembly 1122 adjusts the opening of the feed port 11, it can perform auxiliary fine adjustment by rotating the first screw 11212 under the blocking block 1121. The first screw 11212 extends along the axis of the crushing barrel 1, and forms a thread pair with the first sleeve 11213 sleeved thereon. The first screw 11212 is driven to rotate manually or by a servo motor. The first sleeve 11213 rises and falls slightly along the axial direction due to the thread fit, driving the blocking block 1121 to adjust the opening based on the main drive position. Accurately match the difference in feeding requirements caused by changes in raw material viscosity or particle size. After the adjustment is completed, the transmission connection between the first sleeve 11213 and the drive assembly 1122 remains stable, ensuring that the auxiliary adjustment amount is accurately transmitted to the feed port 11, so that the opening and the distance between the tool holder 123 of the crushing mechanism 12 reach a better matching state. This compensates for the lack of drive precision and meets the stringent requirements for raw material flow in enzyme preparation. The self-locking function of the threaded pair effectively prevents position drift of the barrier block 1121 due to long-term vibration or temperature changes, ensuring long-term stability after opening adjustment. With its simple structure, low modification cost, and strong adaptability, it significantly improves the accuracy and reliability of feed control, providing dual guarantees for uniform crushing of enzyme raw materials and precise control of process parameters.

[0052] like Figures 2 to 7 As shown, the driving rod 124 includes a second screw rod 1241 connected to the moving end 122 and a second sleeve 1242 threadedly matched with the second screw rod 1241, and a positioning piece for fixing is provided on the second sleeve 1242.

[0053] After the drive assembly 1122 adjusts the spacing between the multiple blade holders 123 of the crushing mechanism 12 via the drive rod 124, it can also rotate the second screw 1241 connected to the movable end 122, threadedly engaging the second sleeve 1242 to slightly move the second sleeve 1242 along the axis of the crushing drum 1, thereby driving the movable end 122 for telescopic adjustment. After adjustment, positioning members (such as locknuts, locating pins, etc.) on the second sleeve 1242 secure the relative rotational position of the second sleeve 1242 and the second screw 1241. This prevents the screw from rotating due to rotational vibration of the drive shaft 13 or impact forces from the raw material during the crushing process, ensuring that the spacing between the blade holders 123 remains stable at the target value. This meets the stringent requirements for crushing clearance in bio-enzyme preparation and avoids uneven crushing or over-grinding of the raw material due to spacing deviations. The positioning members' locking action on the screw rotation effectively solves the problem of deviation caused by vibration in traditional threaded drives. This is particularly suitable for high-speed crushing applications, ensuring that the spacing of the blade holders 123 remains stable even during high-speed rotation and cutting.

[0054] like Figures 2 to 7As shown: a support frame 14 is provided at the bottom of the crushing drum 1, and a rotatable turntable 141 is provided below the support frame 14. The turntable 141 has a plurality of fan-shaped screens 1411 evenly distributed along the circumference, and the apertures of the sieve holes of adjacent screens 1411 are arranged in order from small to large. A plurality of baffles 142 that match the screens 1411 are provided on the support frame 14.

[0055] When the crushed raw materials are screened, the turntable 141 below the support frame 14 rotates about the central axis, and the fan-shaped screens 1411 evenly distributed along the circumference of the turntable 141 rotate synchronously with the turntable 141. Because the support frame 14 is provided with multiple baffles 142 that match the screens 1411, the support frame 14 has multiple fan-shaped areas where the screens 1411 are exposed. When the turntable 141 rotates, the screens 1411 that match the raw materials are fully exposed, while the remaining fan-shaped screens 1411 are blocked by the baffles 142. Since the apertures of adjacent sector-shaped screens 1411 are arranged in order from small to large (the screens 1411 in the figure are only for illustration, and the screens of different sizes are not drawn), each rotation of the turntable 141 can switch to the next size of screen, thereby achieving graded screening of raw materials of different particle sizes. When the raw material particle size is small, the small screen area is selected to be exposed to intercept large particles of impurities; when the raw material needs to pass quickly, it is switched to the large screen area to improve the screening efficiency, thereby flexibly adjusting the screening specifications according to the requirements of the crushing process. The rapid switching of screen hole specifications is achieved without the need to disassemble and replace the screen 1411, which significantly simplifies the operating process and is particularly suitable for the refined classification requirements of raw material particle size in the preparation of bio-enzymes. The circumferential uniform distribution of the turntable 141 ensures the stability and regularity of the rotation switching. Combined with the precise positioning of the baffle 142, it avoids the screening confusion caused by the simultaneous operation of multiple sizes of screen holes, thereby improving the screening accuracy.

[0056] like Figures 2 to 6 As shown, a gear ring 1412 is sleeved on the edge of the turntable 141, a gear 15 meshing with the gear ring 1412 is provided in the crushing drum 1, and a first rotary drive motor 151 is provided on the crushing drum 1 to drive the gear 15 to rotate.

[0057] When the mesh size on turntable 141 needs to be changed, the first rotary drive motor 151 is activated, driving the connected gear 15 to rotate. Because gear 15 meshes with the ring gear 1412 on the edge of turntable 141, the rotation of gear 15 is transmitted to turntable 141 through ring gear 1412, causing turntable 141 to rotate at a constant speed around its central axis. This exposes the mesh 1411 of the corresponding size, thus meeting the screening requirements of different raw material particle sizes.

[0058] like Figures 2 to 6 As shown: the regulating mechanism 112 is provided with a sensor for identifying the raw material.

[0059] The control mechanism 112 is equipped with a sensor (not shown), preferably a photoelectric sensor, mounted on the feed inlet 11. This sensor detects the degree of light obstruction by the raw material and identifies the raw material's particle size, flow rate, and distribution. When the raw material passes through the detection zone, the sensor converts the physical signal into an electrical signal and transmits it to the back-end control system. Based on this sensor data, the back-end control system automatically adjusts the parameters of the drive assembly 1122. If the raw material particles are too large, the control mechanism 112 uses screws to reduce the opening of the feed inlet 11 and the spacing between the blade holders 123 to enhance crushing intensity. If the flow rate fluctuates, the mesh screen 1411 and the rotating disk 141 are linked to adjust the aperture to optimize screening efficiency. This sensor enables the control mechanism 112 to sense the raw material state in real time, breaking the limitations of traditional equipment that relies on preset parameters. This non-contact detection eliminates physical losses and accurately captures raw material particle size differences, providing a basis for dynamic adjustment of crushing parameters and enhancing automation and intelligence. The linkage between the sensor and the control mechanism 112 shortens the parameter adjustment cycle, enabling the system to quickly adapt to raw material changes and maintain stable crushing results during continuous production, thus supporting efficient and refined production of bio-enzyme preparation.

[0060] The above embodiments merely represent one or more embodiments of the present invention, and while the descriptions thereof are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A crushing device for preparing a bio-enzyme to prevent raw material contamination, comprising a crushing cylinder (1) and a crushing mechanism (12) arranged in the crushing cylinder (1), wherein a feed port (11) is provided at the top of the crushing cylinder (1), and an inverted raw material barrel (111) is provided on the feed port (11), characterized in that: The feed port (11) is provided with a regulating mechanism (112) for regulating the feed rate of the raw materials; The crushing mechanism (12) comprises a fixed end (121) fixedly connected to the crushing cylinder (1) and a movable end (122) movable along the axis of the crushing cylinder (1); A plurality of tool holders (123) are provided between the fixed end (121) and the movable end (122) and slide along the axis of the crushing cylinder (1) at equal intervals, and each tool holder (123) is provided with a plurality of cutting tools (1231); The crushing mechanism (12) is also provided with a driving rod (124) and a transmission assembly (125) for synchronously adjusting the spacing between the plurality of blade holders (123). One end of the driving rod (124) is in transmission connection with the regulating mechanism (112), and the other end of the driving rod (124) is connected to the moving end (122); The transmission assembly (125) is arranged on the plurality of tool holders (123); When the regulating mechanism (112) drives the driving rod (124) to move, the spacing between the blade holders (123) on the crushing mechanism (12) changes with the feed rate.

2. A bio-enzyme preparation crushing device for preventing raw material contamination according to claim 1, characterized in that: A rotatable drive shaft (13) is provided in the crushing cylinder (1), and a spline is provided on the surface of the drive shaft (13). A plurality of tool holders (123) are sleeved on the drive shaft (13). The tool holders (123) are cylindrical structures. Adjacent tool holders (123) are sleeved on each other to form a telescopic nesting structure. The inner wall of the tool holder (123) is provided with a keyway matching the spline.

3. The bio-enzyme preparation crushing device for preventing raw material contamination according to claim 1, characterized in that: The tool holder (123) is provided with a mounting shaft (1232), and the transmission assembly (125) includes connecting rod components (1251) that are the same in number and one-to-one corresponding to the tool holders (123), and each connecting rod component (1251) is connected to two adjacent tool holders (123). The connecting rod component (1251) includes two mounting frames (1253) that can move relative to each other in the horizontal direction, and the two mounting frames (1253) are both hinged with connecting rods (12511), and the ends of the two connecting rods (12511) that are close to each other are both sleeved on the mounting shafts (1232) of the adjacent tool holders (123).

4. A bio-enzyme preparation crushing device for preventing raw material contamination according to claim 3, characterized in that: A partition (1233) is provided in the tool holder (123), and a slide groove (12331) extending radially along the crushing cylinder (1) is provided on the partition (1233). The transmission assembly (125) further includes a mounting rod (1252) provided between the movable end (122) and the fixed end (121). The mounting rod (1252) is a retractable structure, and the mounting rod (1252) is slidably matched with the slide groove (12331). The mounting rod (1252) is sleeved on the mounting frame (1253) of all the connecting rod components (1251).

5. The bio-enzyme preparation crushing device for preventing raw material contamination according to claim 1, characterized in that: The regulating mechanism (112) includes a blocking block (1121) and a driving assembly (1122). The blocking block (1121) is slidable along the axial direction of the crushing cylinder (1) and is arranged at the feed port (11). The driving assembly (1122) is arranged below the blocking block (1121). The driving rod (124) is movable along the axial direction of the crushing cylinder (1) and is arranged below the driving assembly (1122). Both the blocking block (1121) and the driving rod (124) are in transmission connection with the driving assembly (1122).

6. A bio-enzyme preparation crushing device for preventing raw material contamination according to claim 5, characterized in that: A first screw (11212) extending along the axial direction of the crushing cylinder (1) is provided below the blocking block (1121). A first sleeve (11213) threadedly engaged with the first screw (11212) is provided on the first screw (11212). The first sleeve (11213) is in transmission connection with the driving assembly (1122).

7. The bio-enzyme preparation crushing device for preventing raw material contamination according to claim 5, characterized in that: The driving rod (124) comprises a second screw rod (1241) connected to the movable end (122) and a second sleeve (1242) threadedly engaged with the second screw rod (1241). A positioning member for fixing is provided on the second sleeve (1242).

8. The bio-enzyme preparation crushing device for preventing raw material contamination according to claim 1, characterized in that: A support frame (14) is provided at the bottom of the crushing cylinder (1), a rotatable turntable (141) is provided below the support frame (14), a plurality of fan-shaped screens (1411) are evenly distributed along the circumference of the turntable (141), the apertures of adjacent screens (1411) are arranged in ascending order, and a plurality of baffles (142) are provided on the support frame (14) and matched with the screens (1411).

9. The bio-enzyme preparation crushing device for preventing raw material contamination according to claim 8, characterized in that: A gear ring (1412) is sleeved on the edge of the rotating disk (141), a gear (15) meshingly connected to the gear ring (1412) is provided in the crushing cylinder (1), and a first rotary drive motor (151) for driving the gear (15) to rotate is provided on the crushing cylinder (1).

10. The bio-enzyme preparation crushing device for preventing raw material contamination according to claim 1, characterized in that: The regulating mechanism (112) is provided with a sensor for identifying the raw material.

Images