Digital smart mill

Abstract

The utility model discloses a kind of digital intelligent flour mill, through digital technology upgrading, solve the problem of inconvenient gap adjustment of flour roller in the flour process of existing flour mill. Laser ranging sensor for measuring the gap between fast roller and slow roller in flour roller assembly is installed on the side plate of mill box, pressure sensor is arranged in servo drive mechanism and detects the working pressure between fast roller and slow roller, and the gap between fast roller and slow roller has adjusting action under the driving action of servo drive mechanism;Laser ranging sensor and pressure sensor are electrically connected with touch display screen by electric control module. The equipment is adjusted by the setting of servo motor and pressure sensor, laser ranging sensor, and traditional manual adjusting function is replaced by servo motor and touch display screen digital display combination mode to adjust roller spacing and roller pressure.

Description

Technical Field

[0001] This utility model relates to the field of digital transformation technology for grinding mills for grains, dried chili peppers, etc. Background Technology

[0002] Traditional, outdated equipment relies heavily on the experience of seasoned operators, lacking data-driven, predictable, and visualized capabilities. Therefore, industrial upgrading of milling equipment, particularly wheat mills, necessitates digital transformation. For instance, our company applied for a patent in 2016 for a small milling mill, published in document CN201620661266.5. This document details a small milling mill featuring a manually adjustable lever, allowing for manual adjustment of the grinding roller gap and thus the particle size of the milled flour.

[0003] Based on the needs of industrial upgrading, our company has developed this digital intelligent grinding mill. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a digital intelligent grinding mill that, through digital technology upgrades, solves the problem of inconvenient adjustment of the grinding roller gap during the grinding process in existing grinding mills.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A digital intelligent grinding mill is characterized in that: at least one grinding roller assembly for grinding materials is provided in the grinding box of the grinding mill; a laser rangefinder sensor for measuring the gap between the fast roller and the slow roller in the grinding roller assembly is installed on the side plate of the grinding box; a pressure sensor is installed in the servo drive mechanism to detect the working pressure between the fast roller and the slow roller; and the gap between the fast roller and the slow roller has an adjustment action under the driving action of the servo drive mechanism; the laser rangefinder sensor and the pressure sensor are electrically connected to the touch screen through an electronic control module.

[0006] Furthermore, the two ends of the fast roller are mounted on the side plate of the grinding box via bearing assemblies, and the two ends of the slow roller are mounted in the rocker arm via bearing assemblies. The lower end of the rocker arm is hinged to the side plate of the grinding box, and the upper end of the rocker arm is a drive mounting point, which is mechanically connected to the servo drive mechanism.

[0007] Furthermore, the servo drive mechanism includes a servo motor, a screw, a screw sleeve, a pull rod, an anti-torsion sleeve, an elastic element, and a pressure sensor. The servo motor is mounted on the grinding box, and the motor shaft of the servo motor is mechanically connected to the screw. The screw is threadedly connected to the screw sleeve, and the screw sleeve is fixedly connected to the pull rod. The pull rod passes through the drive mounting point, the anti-torsion sleeve, the elastic element, and the pressure sensor, and is fixedly connected to the drive mounting point with a nut. The pressure sensor is clamped by a gasket and measures the inter-roller pressure generated by the servo motor drive.

[0008] Furthermore, the mating surfaces of the anti-torsion sleeve and the rocker arm are provided with a concave-convex insertion structure to prevent the pull rod from twisting.

[0009] Furthermore, the elastic element is either a compression spring or a disc spring.

[0010] Furthermore, the upper end of the grinding box is a feeding hopper, and a feeding roller and a feeding roller motor for driving the feeding roller to feed materials at a uniform speed are arranged below the feeding hopper.

[0011] Furthermore, the laser rangefinder, pressure sensor, touch screen, servo motor, feed roller motor, and grinding roller motor are connected to the I / O port of the electronic control module.

[0012] Furthermore, the touch display screen is mounted on the outer wall of the grinding box in a cantilever and suspension combination, giving it a floating visual effect.

[0013] Furthermore, pulleys are provided at the outer ends of the fast and slow rollers, and tensioning wheels and steering wheels are installed on the side plates of the grinding box to establish a belt drive, which is powered by the grinding roller motor.

[0014] Furthermore, the grinding roller assembly is a two- or three-row grinding roller assembly arranged vertically.

[0015] The beneficial effects of this utility model are: This equipment uses a combination of servo motors, pressure sensors, and laser rangefinders to adjust the roller gap and roller pressure, replacing the traditional manual adjustment function with a combination of servo motors and touch screen digital display. Based on sensor sensing, the servo motor replaces manual adjustment of the grinding roller gap.

[0016] This equipment incorporates electronic components such as a servo motor, laser rangefinder, pressure sensor, and floating touchscreen display, replacing the original manual adjustment mechanism with a servo motor drive mechanism. This intelligent digital control system adjusts the distance between the two grinding rollers more intelligently and evenly. This automated equipment has significant implications for the industrial upgrading of dried chili powder production.

[0017] After the upgrade, this equipment can be widely used in the production of dried chili powder, as well as in the production of grains such as soybeans, corn, and wheat. It can also be used for powder production in the fields of medicine, feed, and chemicals. Attached Figure Description

[0018] Figure 1 This is the front view of the device.

[0019] Figure 2 This is a schematic diagram of the grinding principle of this equipment.

[0020] Figure 3 This is a partial view of the servo drive mechanism of this device.

[0021] Figure 4 This is the electrical control schematic diagram of this equipment.

[0022] In the picture: 100 grinding box; 200 feed hopper, 210 feed roller; 300 grinding roller assembly, 310 fast roller, 320 slow roller, 330 rocker arm, 332 steel pin, 331 drive mounting point; 400 Servo drive mechanism, 410 Servo motor, 420 Screw, 430 Screw sleeve, 440 Tie rod, 450 Anti-torsion sleeve, 451 Concave-convex plug structure, 460 Nut, 470 Elastic element, 480 Pressure sensor, 490 Laser rangefinder sensor. 500 touchscreen display. Detailed Implementation

[0023] This utility model provides a novel digital intelligent grinding mill, applicable to chili powder production, grain powder production, and other processing scenarios, and is a type of grain processing machinery. This technology is a digital intelligent grinding equipment developed based on our existing 6F2580 model with manual adjustment, and is currently widely used in the production of our 6F2580-4CZ model digital intelligent grinding mill.

[0024] Basic Implementation refer to Figures 1 to 4This equipment utilizes a servo drive mechanism. This mechanism, based on the original manual adjustment, adds functional components such as a laser rangefinder 490, a pressure sensor 480, a touch screen display 500, and a servo motor 410. Through rational mechanical design, it achieves digital electronic control of the grinding roller spacing, transforming the original manual adjustment function into intelligent digital adjustment. That is, by adjusting the spacing and pressure between the grinding rollers, it can adapt to the grinding of different products. For example, different roller spacings and pressures can be matched for dried chili peppers, wheat, corn, and miscellaneous grains to achieve optimal grinding results. Simultaneously, the increased automation reduces the skill requirements for operators, making the production process more intelligent. This has positive implications for the production of dried chili pepper powder (pigment extraction), such as effectively ensuring superior color value and quality of the chili powder.

[0025] The electrical control module of this equipment can be a single-chip microcomputer module or a PLC module, which can realize remote, precise and synchronous adjustment of the rolling gap through instructions.

[0026] Further, refer to Figure 4 The aforementioned laser rangefinder 490, pressure sensor 480, touch screen 500, servo motor 410, feed roller motor, grinding roller motor, etc. are all connected to the I / O port of the electronic control module and are electrically connected. They perform corresponding actions and transmit signals through the instructions of the electronic control module.

[0027] Further, refer to Figure 1 The aforementioned touch display screen 500 is mounted on the outside of the grinding box 100 in a cantilever and hanging combination, which has a floating visual effect and is ergonomic, providing suitable operation performance.

[0028] This equipment can be widely used in chili powder production, as well as in the powder production of grains such as soybeans, wheat, and corn. It can also be extended to adjacent powder production facilities in fields such as pharmaceuticals, chemicals, and feed.

[0029] Furthermore, the main frame of this equipment is a grinding box 100, made of food-grade stainless steel. This grinding box 100 is also the main place for grinding. At the upper end of the grinding box 100 is a feed hopper 200, which is funnel-shaped. Below the feed hopper 200 is a feeding roller 210 and a geared motor that drives the feeding roller 210 to feed materials at a uniform speed. At the lower end is a powder discharge port. Inside the grinding box 100, there are two grinding roller assemblies 300. Directly above each grinding roller assembly 300 is a collecting hopper for collecting materials and feeding them to the grinding roller assembly 300.

[0030] refer to Figure 2In this embodiment, two grinding roller assemblies 300 are provided to achieve two-stage grinding, and the two grinding assemblies can be adjusted independently to achieve precise control.

[0031] Furthermore, under certain grinding requirements, the aforementioned grinding roller assembly 300 can also be set separately, that is, set as a single-stage grinding or a three-stage grinding. Whether it is set as a single-stage or multi-stage grinding, it should fall within the protection scope of this utility model and must not be imitated.

[0032] Let's take one of the grinding roller assemblies 300 as an example for detailed description. Specifically, the grinding roller assembly 300 includes a fast roller 310 and a slow roller 320. The fast roller 310 is fixedly mounted on the side plate of the grinding box 100 of the equipment by a bearing assembly. Meanwhile, the two ends of the slow roller 320 are mounted on the middle of a rocker arm 330 by a bearing assembly. The lower end of the rocker arm 330 is hinged to the side plate of the grinding box 100 by a steel pin or a steel pin shaft 332. A drive mounting point 331 is provided at the upper end of the rocker arm 330.

[0033] Furthermore, the aforementioned rocker arm 330 drive mounting point 331 is a U-shaped groove structure used to mount the tie rod 440.

[0034] Furthermore, pulleys are provided at the outer ends of the fast roller 310 and slow roller 320, and tensioning pulleys and steering pulleys are installed on the outer side of the side plate of the grinding box 100. A belt drive is established between the pulleys, tensioning pulleys and steering pulleys of the fast roller 310 and slow roller 320. This belt drive is a mechanical transmission mode, and within the foreseeable range, it can be a synchronous belt, a belt, etc., all of which are within the protection scope of this technology. Protection is requested.

[0035] As a replaceable design, a compression spring is provided between the bearing housing of the fast roller 310 and the rocker arm 330. The presence of this compression spring gives the fast roller and the slow roller an expanded elastic force. That is, a compression spring mounting groove is provided in the bearing housing and the rocker arm 330. A compression spring is reasonably positioned between the fast roller 310 and the slow roller 320 to maintain the roller spacing and to be linked with the servo drive mechanism 400 to realize the adjustment and reset of the roller spacing.

[0036] Both of the above-mentioned compression spring installation methods should be fully protected and must not be violated.

[0037] The aforementioned fast roller 310 and slow roller 320 are driven by a grinding roller motor via belt transmission. Under the drive of this motor, the two rollers perform grinding operations. To control the distance between the fast roller 310 and slow roller 320, i.e., the shaft spacing, a servo drive mechanism 400 is designed. This servo drive mechanism 400 includes a servo motor 410, a screw 420, a screw sleeve 430, a pull rod 440, an anti-torsion sleeve 450, a gasket, an elastic element 470, a pressure sensor 480, and a laser rangefinder sensor 490. The servo motor 410 is fixedly mounted on the grinding box 100 via a motor mount and is tilted. The motor shaft of the servo motor 410 is mechanically connected to the screw 420 via a coupling. The screw 420 and the screw sleeve 430 are threadedly connected, and the screw sleeve 430 and the pull rod 440 are fixedly connected and secured together using set screws. The pull rod 440 passes through the drive mounting point 331 at the upper end of the rocker arm 330 and is positioned using a nut 460. An elastic element 470 is fitted onto the distal end of the pull rod 440 that passes through the rocker arm 330 and secured with the nut 460. In this embodiment, the elastic element 470 can be a compression spring or a disc spring, both of which should be protected. A pressure sensor 480 is provided in the elastic element 470 or between the elastic element 470 and the nut 460. For example, when the elastic element 470 is a compression spring, a shim needs to be added as a carrier for the pressure sensor 480, that is, the pressure sensor 480 is held between two shims, and the shim is placed between the compression spring and the nut 460 to measure the roller pressure generated by the servo motor 410.

[0038] Furthermore, an anti-torsion sleeve 450 is provided between the aforementioned elastic element 470 and the rocker arm 330 drive mounting point 331. The anti-torsion sleeve 450 is fixed to the pull rod, for example, through a threaded connection. Specifically, the anti-torsion sleeve 450 is threaded onto the pull rod 440, and under the pressure of the elastic element 470, it adheres to the rocker arm 330. A concave-convex insertion structure 451 is provided at the mating surface of the anti-torsion sleeve 450 and the rocker arm 330. For example, as shown in this embodiment, a protrusion is provided on the anti-torsion sleeve 450, and a groove is provided on the rocker arm 330. This design ensures that when the screw 420 rotates, the pull rod remains relatively stationary, thus achieving an axial length change between the pull rod and the screw, thereby driving the rocker arm to swing.

[0039] A laser rangefinder sensor 490 is installed on the side plate of the grinding box 100 and near the pull rod 440 on the rocker arm 330. It is used to measure the displacement of the pull rod 440 and thus obtain the change data of the gap between the two rollers.

[0040] Furthermore, the installation position of the laser rangefinder sensor 490 in the illustration is merely for illustrative purposes and is not a limitation on the position. As long as the installation point can achieve dynamic ranging of the rocker arm or lever, it should be within the protection scope of this utility model, and protection is requested.

[0041] The intelligent control process of this device is as follows: First, material (such as dried chili peppers) is fed into the hopper at the top of the grinding chamber 100. The machine is then started. The material in the hopper 200 is ground and falls into the grinding gap of the first grinding roller assembly 300 by the mechanical action of the feeding roller 210. During the grinding process, the gap and pressure between the two grinding rollers (fast roller and slow roller) can be adjusted by the servo motor 410. Specifically, the gap and pressure values ​​are input through the touch screen 500. This command drives the servo motor 410 to rotate, causing the motor shaft of the servo motor to rotate and pull the rollers to rotate. The aforementioned screw 420 rotates relative to the screw sleeve 430, while the screw sleeve 430 remains stationary. Therefore, during this process, the servo motor 410 drives the pull rod 440 axially via the lead screw transmission of the screw 420 and screw sleeve 430, thereby adjusting the swing angle of the rocker arm 330. During this process, pressure data dynamically changes and is displayed on the touch screen 500, allowing operators to more intuitively adjust the gap by observing the pressure data. This adjustment plays a decisive role in the powder quality and powdering effect, thus ensuring the powder production quality. This invention, through the combination of a pressure sensor 480, a laser rangefinder sensor 490, and a touch screen 500, allows the pressure data during the adjustment process to be directly displayed on the touch screen, reducing the operator's workload, increasing the adjustment speed, and digitizing and displaying the process that previously relied on experience. This solves and avoids the problem of poor powder production results caused by insufficient operator experience.

[0042] This technology is applicable to the digital transformation of the entire range of 36F22 / 6F22 / 6F25 series products currently produced by our company.

[0043] This technology can be used for the development of new equipment models, as well as for the digital upgrading and transformation of old equipment, and has a wide range of applications.

[0044] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Without departing from the spirit of the present utility model, all modifications and improvements to the present utility model by those skilled in the art should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A digital intelligent grinding mill, characterized in that: The grinding mill has at least one grinding roller assembly (300) for grinding materials in the grinding box (100). A laser range sensor (490) is installed on the side plate of the grinding box to measure the gap between the fast roller (310) and the slow roller (320) in the grinding roller assembly (300). A pressure sensor (480) is installed in the servo drive mechanism (400) to detect the working pressure between the fast roller (310) and the slow roller (320). The gap between the fast roller (310) and the slow roller (320) is adjusted under the driving action of the servo drive mechanism (400). The laser range sensor (490) and the pressure sensor (480) are electrically connected to the touch screen (500) through the electronic control module.

2. The digital intelligent grinding mill according to claim 1, characterized in that, The fast roller (310) is mounted on the side plate of the grinding box at both ends via bearing assemblies, and the slow roller (320) is mounted in the rocker arm (330) at both ends via bearing assemblies. The lower end of the rocker arm (330) is hinged to the side plate of the grinding box. The upper end of the rocker arm (330) is a drive mounting point (331), which is mechanically connected to the servo drive mechanism (400).

3. The digital intelligent grinding mill according to claim 2, characterized in that, The servo drive mechanism (400) includes a servo motor (410), a screw (420), a screw sleeve (430), a pull rod (440), an anti-torsion sleeve (450), an elastic element (470), and a pressure sensor (480). The servo motor (410) is mounted on the grinding box (100). The motor shaft of the servo motor (410) is mechanically connected to the screw (420). The screw (420) is threadedly connected to the screw sleeve (430). The screw sleeve (430) is fixedly connected to the pull rod (440). The pull rod (440) passes through the drive mounting point (331), the anti-torsion sleeve (450), the elastic element (470), and the pressure sensor (480) and is fixedly connected to the drive mounting point (331) with a nut (460). The pressure sensor (480) is held by a gasket and measures the inter-roller pressure generated by the servo motor (410).

4. The digital intelligent grinding mill according to claim 3, characterized in that, The mating surfaces of the anti-torsion sleeve (450) and the rocker arm (330) are provided with a concave-convex insertion structure (451) to prevent the pull rod (440) from twisting.

5. The digital intelligent grinding mill according to claim 4, characterized in that, The elastic element (470) is either a compression spring or a disc spring.

6. The digital intelligent grinding mill according to claim 5, characterized in that, The upper end of the grinding box (100) is a feeding hopper (200), and a feeding roller (210) and a feeding roller motor that drives the feeding roller (210) to feed at a uniform speed are arranged below the feeding hopper (200).

7. The digital intelligent grinding mill according to claim 6, characterized in that, The laser rangefinder (490), pressure sensor (480), touch screen (500), servo motor (410), feed roller motor and grinding roller motor are connected to the I / O port of the electrical control module.

8. The digital intelligent grinding mill according to claim 1, characterized in that, The touch display screen (500) is mounted on the outer wall of the grinding box (100) in a cantilever and suspension combination and has a floating visual effect.

9. The digital intelligent grinding mill according to claim 1, characterized in that, The fast roller (310) and slow roller (320) are equipped with pulleys at their outer ends, and tensioning wheels and steering wheels are installed on the side plates of the grinding box to establish a belt drive, which is powered by the grinding roller motor.

10. The digital intelligent grinding mill according to claim 1, characterized in that, The grinding roller assembly (300) consists of two or three grinding roller assemblies arranged vertically.

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