Valve moving type material selecting device based on database and control method

Abstract

The invention relates to a valve moving type material selecting device based on a database and a control method, the material selecting device comprises a driving system, a shell part, a rotating part, a butt joint part, a material injection part and a database management system; the database management system stores raw material data; the driving system comprises a servo motor and a speed reducer; the shell part comprises a rack and an index plate, and the index plate is mounted on the rack; the rotating part comprises a rotating shaft and a nylon disc; and the butt joint part is used for butt joint of the rotating part and the injection part. The method has the beneficial effects that the environment parameters and the equipment wear coefficient are fused through the database to generate the composite target angle, so that the problem of large indexing angle positioning error caused by environment fluctuation and equipment aging in the prior art is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automatic control, and in particular relates to a valve-actuated material selection device based on a database and a control method thereof. Background Art

[0002] With the rapid development of industrial automation technology, the demand for automated raw material selection and filling in production lines is increasing. Traditional production models involve manual material selection, which is cumbersome, inefficient, and prone to errors. While existing automated material selection devices can achieve partial automation, they still have limitations in accuracy and flexibility, failing to fully meet the demands of high-precision, high-efficiency production. Therefore, a new, efficient, flexible, and accurate raw material selection and filling device is urgently needed. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a valve-actuated material selection device and a control method based on a database.

[0004] In a first aspect, a valve-actuated material selection device based on a database is provided, comprising:

[0005] Drive system, housing components, rotating components, docking components, injection components and database management system;

[0006] Among them, the database management system stores raw material data for generating a target rotation angle signal; the drive system includes a servo motor and a reducer for receiving the target rotation angle signal generated by the database management system and driving the rotating component to rotate; the shell component includes a frame and a dividing plate, and the dividing plate is installed on the frame; the rotating component includes a rotating shaft and a nylon disk, the rotating shaft is connected to the servo motor through the reducer, and the nylon disk is connected to the rotating shaft; the docking component is used to dock the rotating component and the injection component.

[0007] Preferably, the rotating component also includes a rotating frame, a rotating sleeve, a rotating transition plate, a reducer gear, a magnetic cylinder plate, a stroke connecting plate, and a nylon disk fixing plate; wherein, the upper portion of the rotating frame is connected to the frame of the shell component for fixing the rotating component; a rotating sleeve and a rotating transition plate are installed below the rotating shaft for controlling the nylon disk to rotate to a corresponding angle; the reducer gear is connected to the reducer and is installed with a rotating shaft; a magnetic cylinder plate is installed below the rotating transition plate; the stroke connecting plate is used to connect the magnetic cylinder plate and the nylon disk fixing plate, and the nylon disk is installed on the nylon disk fixing plate.

[0008] Preferably, the docking components include a cylinder, a pull rod, a pull rod support seat, a pull rod axle pin, a pull rod bearing, a support seat bearing, and a support seat axle pin; the cylinder is connected to the magnetic cylinder plate, and the end of the cylinder is connected to the pull rod and the pull rod support seat; the pull rod is equipped with a pull rod bearing and a pull rod axle pin, and the pull rod support seat is equipped with a support seat bearing and a support seat axle pin.

[0009] Preferably, the injection components include a valve seat slider, a valve seat track, a valve body fixing seat, a valve body, a spray hole, a wiping device, a pipeline system, and a flow meter; the valve seat slider is fixed on a dividing plate, one end of the valve seat track is connected to the valve body fixing seat, the upper end of the valve body is connected to the valve body fixing seat, and the lower end of the valve body is connected to the spray hole for injecting raw materials; the wiping device is installed on the dividing plate for wiping the spray hole after the injection is completed.

[0010] Preferably, the shell component further includes a main board on the rack and a middle frame large plate; the main board on the rack is connected to the rack and is used to fix the rotating frame of the rotating component; the middle frame large plate is used to install the dividing plate on the rack.

[0011] Preferably, the raw material data stored in the database includes: raw material ID, temperature compensation coefficient, humidity compensation coefficient, historical optimal indexing angle and equipment wear correction parameters.

[0012] In a second aspect, a control method for a valve-actuated material selection device based on a database as described in any one of the first aspects is provided, comprising:

[0013] Step 1: Receive the raw material selection instruction and query the database to obtain the standard indexing angle;

[0014] Step 2: Calculate the target rotation angle according to the standard indexing angle and the compensation coefficient;

[0015] Step 3: According to the target rotation angle, the servo motor is driven to rotate the nylon disk 39; the injection component performs injection;

[0016] Step 4: Obtain the actual rotation angle through the angle sensor, and determine whether the deviation between the actual rotation angle and the target rotation angle is greater than the angle deviation threshold. If so, perform an emergency shutdown and record the accident; if not, execute step 5;

[0017] Step 5: Obtain the actual injection amount through the flow meter, and determine whether the deviation between the actual injection amount and the preset target injection amount is greater than the injection amount deviation threshold. If so, emergency shutdown and accident recording are performed; if not, the compensation coefficient is updated.

[0018] Preferably, in step 2, the target rotation angle is calculated as follows:

[0019]

[0020] in, is the target rotation angle, is the standard indexing angle, is the temperature compensation coefficient, is the temperature deviation, is the humidity compensation coefficient, is the humidity deviation, is the equipment wear coefficient, is the accumulated wear value.

[0021] Preferably, in step 3, the injection component adopts a phased injection method during the process of injecting the raw material, and the injection amount is gradually reduced each time.

[0022] The beneficial effects of the present invention are:

[0023] 1. This invention generates a composite target angle by fusing environmental parameters (temperature, humidity) and equipment wear coefficients into a database, thus overcoming the large indexing angle positioning error problem caused by environmental fluctuations and equipment aging in the existing technology. It improves the nylon disk rotation angle accuracy to ±0.1°, which is five times higher than the traditional device (±0.5°).

[0024] 2. The present invention adopts a step-by-step decreasing filling algorithm, which uses the flow meter to feedback data in real time and gradually reduce the injection amount, thus overcoming the cumulative error problem caused by inertia or residue in traditional continuous filling, thereby reducing the filling error rate from the traditional ±3% to ±0.5%, and improving the micro-injection accuracy by 6 times.

[0025] 3. This invention adopts a magnetic cylinder plate and a dual-bearing linkage mechanism. Through the precise matching of the tie rod bearing and the support seat bearing, it overcomes the positioning deviation and wear problems caused by friction of traditional docking components, thereby achieving a docking success rate of 99.8% (compared to 95.2% for traditional devices), reducing the wear of key components by 75% (bearing wear is reduced from 48.7μm to 12.3μm), and extending the equipment life by 30%.

[0026] 4. This invention uses a high-precision sensor to monitor rotation angle deviation in real time and combines it with a random forest algorithm to dynamically update the compensation coefficient. This overcomes the limitations of existing technologies that rely on manual adjustment based on experience, thereby achieving adaptive parameter optimization. After 1,000 consecutive runs, the system's angle deviation remains within ±0.1°, improving stability by 76%.

[0027] 5. The present invention adopts a coordinated design of valve seat track, sliding and wiping device, and automatically cleans the spray hole through steel balls, thus overcoming the problem of raw material residue clogging the spray hole, thereby reducing the spray hole residue from the traditional 0.15mL / time to 0.02mL / time, improving the cleaning efficiency by 86%, and reducing the frequency of maintenance shutdowns by more than 50%. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a database architecture diagram provided by the present invention;

[0029] Figure 2 It is a data flow diagram of the material selection method provided by the present invention;

[0030] Figure 3 A schematic structural diagram of a valve-actuated material selection device based on a database provided by the present invention;

[0031] Figure 4 A schematic structural diagram of the housing component provided by the present invention;

[0032] Figure 5 A schematic diagram of the structure of the drive system and rotating components provided by the present invention;

[0033] Figure 6 A schematic structural diagram of the docking component provided by the present invention;

[0034] Figure 7 A schematic structural diagram of the injection component provided by the present invention;

[0035] Explanation of the accompanying drawings: 1: driving system; 2: housing component; 3: rotating component; 4: docking component; 5: injection component; 11: servo motor; 12: reducer; 21: frame; 22: dividing plate; 23: main board on the frame; 24: middle frame large plate; 31: rotating frame; 32: rotating shaft; 33: rotating sleeve; 34: rotating transition plate; 35: reducer gear; 36: magnetic cylinder plate; 37: stroke connecting plate; 38: nylon disk fixing plate; 39: nylon disk; 41: cylinder; 42: pull rod; 43: pull rod support seat; 44: pull rod shaft pin; 45: pull rod bearing; 46: support seat bearing; 47: support seat shaft pin; 51: valve seat slider; 52: valve seat track; 53: valve body fixing seat; 54: valve body; 55: spray hole; 56: wiping device; 57: piping system; 58: flow meter. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the following examples. The following examples are provided only to facilitate understanding of the present invention. It should be noted that, without departing from the principles of the present invention, it is possible for a person skilled in the art to make various modifications to the present invention, and such improvements and modifications fall within the scope of the claims of the present invention.

[0037] Example 1:

[0038] To solve the problems of the prior art, Example 1 of the present application provides a valve-actuated material selection device based on a database, comprising:

[0039] Drive system 1, shell component 2, rotating component 3, docking component 4, injection component 5 and database management system; through the storage and control of raw material data in the database, the device can intelligently select and add different raw materials according to preset conditions.

[0040] Among them, the database management system stores raw material data for generating a target rotation angle signal; the drive system 1 includes a servo motor 11 and a reducer 12, for receiving the target rotation angle signal generated by the database management system and driving the rotating component 3 to rotate; the shell component 2 includes a frame 21 and a dividing plate 22, the dividing plate 22 is installed on the frame 21, and 160 groups of mounting holes are evenly distributed thereon for fixing the valve seat slider 51, and each group of holes corresponds to the positioning coordinates of the injection component of a raw material; the rotating component 3 includes a rotating shaft 32 and a nylon disk 39, the rotating shaft 32 is connected to the servo motor 11 through the reducer 12, and the nylon disk 39 is connected to the rotating shaft 32; the docking component 4 is used to dock the rotating component 3 and the injection component 5.

[0041] Among them, the database architecture is a hierarchical structure, such as Figure 1 As shown, the database architecture includes the basic layer: raw material static data and equipment parameter library; the operation layer: indexing angle matrix and injection pressure parameter table; the optimization layer: historical operation record library, environmental compensation library and equipment wear model.

[0042] The rotating component 3 also includes a rotating frame 31, a rotating sleeve 33, a rotating transition plate 34, a reducer gear 35, a magnetic cylinder plate 36, a stroke connecting plate 37, and a nylon disk fixing plate 38; wherein the rotating frame 31 is connected to the frame 21 of the shell part 2 above and is used to fix the rotating component 3; a rotating sleeve 33 and a rotating transition plate 34 are installed below the rotating shaft 32, the rotating sleeve 33 is used to protect the rotating shaft 32, and the rotating transition plate 34 is used to control the nylon disk 39 to rotate to the corresponding angle; the reducer gear 35 is connected to the rotating shaft 32; The reducer 12 is connected and is equipped with a rotating shaft 32; the rotating transition plate 34 is used to connect the rotating shaft 32 and the magnetic cylinder plate 36, and the magnetic cylinder plate 36 is installed under the rotating transition plate 34; the stroke connecting plate 37 is used to connect the magnetic cylinder plate 36 and the nylon disk fixing plate 38, and the nylon disk 39 is installed on the nylon disk fixing plate 38, and is used to be driven by the servo motor 11 to accurately rotate to the target angle, so that its center hole is accurately aligned with the specified raw material position on the dividing plate 22, thereby realizing selective injection of 160 kinds of raw materials.

[0043] The rotating component 3 can reduce the output speed of the servo motor 11 by adjusting the gear ratio of the reducer 12 while maintaining the output of torque, so as to accurately control the angle of the rotating device, thereby controlling the nylon disk 39 in the rotating component to rotate to the specified position according to the angle data stored in the database, completing the selection of the required raw materials, and further improving the accuracy and stability of the angle control.

[0044] The housing component 2 further includes a main frame 23 on the frame and a large middle frame plate 24 ; the main frame 23 on the frame is connected to the frame 21 for fixing the rotating frame 31 of the rotating component 3 ; the large middle frame plate 24 is used to mount the indexing plate 22 on the frame 21 .

[0045] Example 2:

[0046] Based on Example 1, Example 2 of the present application provides a more specific database-based valve-actuated material selection device, including:

[0047] Drive system 1, housing component 2, rotating component 3, docking component 4, injection component 5 and database management system;

[0048] The database management system stores raw material data for generating target rotation angle signals. This database stores raw material data including raw material ID, temperature compensation coefficient, humidity compensation coefficient, historically optimal indexing angle, and equipment wear correction parameters. Specifically, the rotating component can adjust the reducer's gear ratio to reduce the servo motor's output speed while maintaining torque output, precisely controlling the rotating device's angle. Based on the angle data stored in the database, the nylon disc in the rotating component is controlled to rotate to a specified position, selecting the desired raw material and further improving the accuracy and stability of angle control.

[0049] The drive system 1 includes a servo motor 11 and a reducer 12, which are used to receive the target rotation angle signal generated by the database management system and drive the rotating component 3 to rotate; the shell component 2 includes a frame 21 and a dividing plate 22, and the dividing plate 22 is installed on the frame 21; the rotating component 3 includes a rotating shaft 32 and a nylon disk 39, and the rotating shaft 32 is connected to the servo motor 11 through the reducer 12, and the nylon disk 39 is connected to the rotating shaft 32; the docking component 4 is used to dock the rotating component 3 and the injection component 5.

[0050] The docking component 4 includes a cylinder 41, a pull rod 42, a pull rod support seat 43, a pull rod axle pin 44, a pull rod bearing 45, a support seat bearing 46, and a support seat axle pin 47. The cylinder 41 is connected to the magnetic cylinder plate 36, and the end of the cylinder 41 is connected to the pull rod 42 and the pull rod support seat 43. The pull rod bearing 45 and the pull rod axle pin 44 are installed on the pull rod 42, and the support seat bearing 46 and the support seat axle pin 47 are installed on the pull rod support seat 43. The two bearings can ensure the precise docking between the docking component 4 and the injection component 5. At the same time, the bearings play a key role in the expansion and contraction process of the cylinder 41, effectively reducing the friction between the docking component 4 and the front end of the injection component 5, thereby ensuring a smooth docking operation, reducing wear, and extending the service life of the equipment.

[0051] The injection component 5 includes a valve seat slider 51, a valve seat track 52, a valve body fixing seat 53, a valve body 54, a spray hole 55, a wiping device 56, a pipeline system 57, and a flow meter 58. The valve seat slider 51 is fixed on the indexing plate 22 and is slidably connected to the valve seat track 52. One end of the valve seat track 52 is connected to the valve body fixing seat 53 for sliding the valve body 54. The upper end of the valve body 54 is connected to the valve body fixing seat 53, and the lower end of the valve body 54 is connected to the spray hole 55 for injecting raw materials. The wiping device 56 is installed on the indexing plate 22 and is used to wipe the spray hole 55 after the injection is completed. The wiping device 56 includes a steel ball, a steel ball seat, and a steel ball seat connecting rod. One end of the steel ball seat connecting rod is connected to the indexing plate 22 of the shell component 2, and the other end is equipped with a steel ball seat. The steel ball is installed on the steel ball seat and is used to wipe the spray hole 55 after the injection is completed to ensure that the spray hole 55 is clean. In addition, a pipeline system 57 and a flow meter 58 are connected to the valve body 54 for accurately controlling the amount of injected raw materials.

[0052] In addition, the valve-actuated material selection device includes a safety device that monitors the pressure of the pipeline system 57 in real time via a pressure sensor. When the pressure reaches 10.5 MPa or above, or when other abnormal conditions occur, the control unit initiates emergency protection: closing the emergency stop valve and cutting off the raw material supply; de-energizing the servo motor 11 and locking the rotating component 3; and demagnetizing the magnetic cylinder plate 36, causing the injection component 5 to return to its original position. The current raw material ID, injected volume, and pressure value are recorded in a database management system, enabling fault traceability. Therefore, this application can prevent failures caused by excessive pressure or other abnormal conditions. It also incorporates a filter to ensure raw material purity and stable system operation. This invention utilizes an integrated design of a safety device and filter. Through an emergency stop mechanism triggered by a pressure threshold (10.5 MPa) and raw material impurity filtration, it overcomes the risk of failure associated with traditional equipment due to pressure overload or raw material contamination, thereby reducing the system failure rate by 60% and ensuring production safety and raw material purity.

[0053] It should be noted that the parts in this embodiment that are the same or similar to those in Example 1 can be referenced to each other and will not be described in detail in this application.

[0054] Example 3:

[0055] Based on Example 2, Example 3 of the present application provides a control method for a valve-driven material selection device based on a database. Before use, all relevant data of raw materials (such as name, physical properties, filling amount and selection angle) are stored in the database system. During the production process, the control system automatically queries the database according to actual needs and retrieves the corresponding raw material information. Specifically, Figure 2 As shown, the method includes:

[0056] Step 1: Receive the raw material selection instruction and query the database to obtain the standard indexing angle.

[0057] For example, the raw material selection instruction is for the user to input the ID of the required raw material and the target filling amount according to the recipe. Then, the database can be queried based on the raw material ID to retrieve the corresponding static parameters, such as the standard indexing angle.

[0058] Step 2: Calculate the target rotation angle according to the standard indexing angle and the compensation coefficient.

[0059] Specifically, the current ambient temperature and humidity are collected by sensors, the pre-stored compensation coefficient table and historical operation records are retrieved, the temperature compensation coefficient, humidity compensation coefficient, and current wear coefficient are obtained, and the target angle is output according to the calculation formula for generating the composite target angle. The calculation formula for the target rotation angle is:

[0060]

[0061] in, is the target rotation angle, is the standard indexing angle, is the temperature compensation coefficient (unit: 1 / °C), which is calibrated by experiments and the typical value is 0.002 / °C. is the temperature deviation (the difference between the current temperature and the standard temperature of 20°C, unit: °C), is the humidity compensation coefficient (unit: 1 / %RH), which is calibrated by experiments and the typical value is 0.001 / %RH. is the humidity deviation (the difference between the current humidity and the standard humidity of 50%RH, unit: %RH), is the equipment wear coefficient, It is the accumulated wear value, quantified based on parameters such as gear clearance and bearing wear.

[0062] Step 3: According to the target rotation angle, the servo motor 11 is driven to rotate the nylon disk 39; and the injection component 5 performs injection.

[0063] Specifically, the target rotation angle is converted into a pulse signal, and the servo motor 11 reduces the speed and amplifies the torque through the reducer 12 to ensure precise transmission of the rotating shaft 32. The database management system retrieves the pre-stored reducer gear ratio parameter i and calculates the output pulse number of the servo motor 11 according to the formula:

[0064]

[0065] in, = is the servo motor encoder resolution. The servo motor 11 drives the reducer 12 based on the pulse count. The reducer gear 35 reduces the output speed to 1 / i times and amplifies the torque to i times. This ensures that the rotating shaft 32 precisely controls the rotation angle of the nylon disc 39 with low speed and high torque. When the nylon disc 39 reaches the specified position, the material is selected.

[0066] The present invention adopts a gear ratio parameterized control and closed-loop calibration mechanism, dynamically adjusting the speed and torque of the rotating shaft 32 through the pulse number of the servo motor 11, thereby overcoming the cumulative deviation problem caused by gear wear in traditional open-loop control, thereby reducing the angular error rate after long-term operation from ≥1.5% to ≤0.2%, shortening the single positioning time to 0.5 seconds (compared to 1.2 seconds in traditional devices), and improving efficiency by 30%.

[0067] After the rotating component 3 rotates to the designated position, the tie rod bearing 45 and the support seat bearing 46 mate with the valve body mounting 53, completing the docking of the docking component 4 and the injection component 5. Once docking is complete, the cylinder 41 contracts, and the valve body 54 and the nozzle 55 slide along the valve seat track 52, translating to the center of the nylon disc 39. This ensures that the nozzle is aligned with the material during each injection and that the material is accurately injected into the desired location. The valve-actuated material selection method, by controlling the rotation angle of the nylon disc 39, ensures precise control of the nozzle 55 position when selecting different materials, preventing material mixing and improving feeding accuracy and equipment efficiency. Furthermore, the piping system 57 and flowmeter 58 monitor and adjust the injection volume of the nozzle 55 in real time. The flowmeter 58 provides real-time feedback on the injection volume, and error data is fed back to the database to update the optimization model (see subsequent step 5).

[0068] In addition, in step 3, the injection component 5 adopts a fractional injection method during the injection of raw materials, with the injection amount gradually reduced each time to ensure that the amount of liquid injected each time is smaller and smaller, which is used to effectively reduce the error of each injection and optimize the injection accuracy. The formula for the fractional injection method is:

[0069]

[0070] Among them, the attenuation coefficient k=0.05.

[0071] Step 4: Obtain the actual rotation angle through the angle sensor, and determine whether the deviation between the actual rotation angle and the target rotation angle is greater than the angle deviation threshold. If so, perform an emergency shutdown and record the accident; if not, execute step 5.

[0072] For example, a high-precision angle sensor is installed at the end of the rotating shaft 32 to monitor the actual angle and calculate whether the angle deviation is greater than 0.1°. If so, an emergency stop is performed and the accident is recorded. If not, the next step is performed.

[0073] Step 5: Obtain the actual injection amount through the flow meter 58, and determine whether the deviation between the actual injection amount and the preset target injection amount is greater than the injection amount deviation threshold. If so, emergency shutdown is performed and the accident is recorded; if not, the compensation coefficient is updated.

[0074] For example, the flow meter 58 monitors the injection volume in real time, calculates the flow meter error, and determines whether the error is greater than 0.5%. If so, an emergency shutdown is performed and the accident is recorded. If not, based on the random forest algorithm, historical operation data is analyzed, and the compensation coefficient and wear coefficient are updated to optimize the next operation.

[0075] In addition, after the filling is completed, the cylinder 41 extends, the filling component returns to its initial position, the valve seat track 52 returns to its original state, the wiping device 56 cleans the nozzle 55, and the filling of the raw materials is completed. After that, prepare for the next round of raw material selection and filling. The entire process is controlled by the cooperation of the servo motor and the precision reducer. Combined with the data in the database, the present invention can realize automated and precise raw material filling. The control method not only reduces manual operation and improves production efficiency, but also can adjust the dosage of raw materials in real time during the filling process, avoiding the common error problems in traditional batching methods. Through the implementation of the present invention, the problems of inaccurate filling and complex equipment in the existing technology can be effectively solved, and it has the following advantages: accurate filling and automated control of raw materials are achieved, reducing the complexity of manual operation; improving the overall efficiency of the production line and shortening the production cycle; ensuring the accuracy and consistency of each injection, avoiding production quality problems caused by inaccurate feeding; providing a flexible control method, selecting and filling raw materials through the database, and adapting to diverse production needs.

[0076] To verify the effectiveness of the present invention's technical solution, the device was compared with an existing device (XYZ-2000 material selection device) under a test environment of 25±5°C and 50±10% humidity. The test materials used were chemical liquids with viscosities ranging from 10 to 1000 mPa·s. The accuracy of the indexing angle, the injection error rate, and the device lifespan were tested at various temperatures.

[0077] The indexing angle deviation of the present invention and the XYZ-2000 device was tested at different temperatures (20°C, 30°C, and 40°C). Each set was repeated 10 times, and the average value was calculated. The experimental results are shown in Table 1. The dynamic compensation algorithm (temperature compensation coefficient α = 0.002 / °C) controls the angle deviation to within ±0.12°. However, due to the lack of a compensation mechanism, the deviation of the existing technology increases significantly with increasing temperature.

[0078] Table 1 Comparison of indexing angle accuracy at different temperatures

[0079]

[0080] Taking a target injection volume of 100 mL as an example, 50 consecutive injections were performed, and the error rate (the percentage deviation between the actual injection volume and the target value) was calculated. The experimental results are shown in Table 2. The present invention uses a step-by-step decreasing injection algorithm (attenuation coefficient k = 0.05), which effectively suppresses overshoot caused by inertia, reducing the error rate to 0.45%. The standard deviation is also smaller, indicating better stability.

[0081] Table 2 Comparison of injection error rates of different equipment

[0082]

[0083] After 1000 consecutive runs, the wear of key components (tie rod bearings and nylon discs) was measured. The experimental results, shown in Table 3, show that the proposed design, which utilizes a magnetic cylinder plate and dual-bearing linkage, reduces friction by 70%, increases the docking success rate to 99.8%, and reduces the wear of key components to only one-quarter of that of existing technologies, significantly extending the equipment life.

[0084] Table 3 Life test of different equipment

[0085]

[0086] It should be noted that the method provided in this embodiment is the method corresponding to the device provided in Example 2. Therefore, the parts in this embodiment that are the same or similar to those in Example 2 can be referenced to each other and will not be repeated in this application.

Claims

1. A valve-driven material selection device based on a database, characterized in that: include: Drive system, housing components, rotating components, docking components, injection components and database management system; Among them, the database management system stores raw material data for generating a target rotation angle signal; the drive system includes a servo motor and a reducer for receiving the target rotation angle signal generated by the database management system and driving the rotating component to rotate; the shell component includes a frame and a dividing plate, and the dividing plate is installed on the frame; the rotating component includes a rotating shaft and a nylon disk, the rotating shaft is connected to the servo motor through the reducer, and the nylon disk is connected to the rotating shaft; the docking component is used to dock the rotating component and the injection component.

2. The valve-driven material selection device based on a database according to claim 1, characterized in that: The rotating component also includes a rotating frame, a rotating sleeve, a rotating transition plate, a reducer gear, a magnetic cylinder plate, a stroke connecting plate, and a nylon disk fixing plate; wherein the rotating frame is connected to the frame of the shell component above and is used to fix the rotating component; a rotating sleeve and a rotating transition plate are installed below the rotating shaft to control the nylon disk to rotate to a corresponding angle; the reducer gear is connected to the reducer and is installed with a rotating shaft; a magnetic cylinder plate is installed below the rotating transition plate; the stroke connecting plate is used to connect the magnetic cylinder plate and the nylon disk fixing plate, and the nylon disk is installed on the nylon disk fixing plate.

3. The valve-driven material selection device based on a database according to claim 2, characterized in that: The docking components include a cylinder, a pull rod, a pull rod support seat, a pull rod axle pin, a pull rod bearing, a support seat bearing, and a support seat axle pin; the cylinder is connected to the magnetic cylinder plate, and the end of the cylinder is connected to the pull rod and the pull rod support seat; the pull rod is equipped with a pull rod bearing and a pull rod axle pin, and the pull rod support seat is equipped with a support seat bearing and a support seat axle pin.

4. The valve-actuated material selection device based on a database according to claim 3, characterized in that: The injection components include a valve seat slider, a valve seat track, a valve body fixing seat, a valve body, a spray hole, a wiping device, a pipeline system, and a flow meter; the valve seat slider is fixed on the dividing plate, one end of the valve seat track is connected to the valve body fixing seat, the upper end of the valve body is connected to the valve body fixing seat, and the lower end of the valve body is connected to the spray hole for injecting raw materials; the wiping device is installed on the dividing plate and is used to wipe the spray hole after the injection is completed.

5. The valve-actuated material selection device based on a database according to claim 4, characterized in that: The shell component also includes a main board on the frame and a middle frame large plate; the main board on the frame is connected to the frame and is used to fix the rotating frame of the rotating component; the middle frame large plate is used to install the indexing plate on the frame.

6. The valve-actuated material selection device based on a database according to claim 5, characterized in that: The raw material data stored in the database include: raw material ID, temperature compensation coefficient, humidity compensation coefficient, historical optimal indexing angle and equipment wear correction parameter.

7. A control method for a valve-actuated material selection device based on a database according to any one of claims 1 to 6, characterized in that: include: Step 1: Receive the raw material selection instruction and query the database to obtain the standard indexing angle; Step 2: Calculate the target rotation angle according to the standard indexing angle and the compensation coefficient; Step 3: According to the target rotation angle, the servo motor is driven to rotate the nylon disk; the injection component performs injection; Step 4: Obtain the actual rotation angle through the angle sensor, and determine whether the deviation between the actual rotation angle and the target rotation angle is greater than the angle deviation threshold. If so, perform an emergency shutdown and record the accident; if not, execute step 5; Step 5: Obtain the actual injection amount through the flow meter, and determine whether the deviation between the actual injection amount and the preset target injection amount is greater than the injection amount deviation threshold. If so, emergency shutdown and accident recording are performed; if not, the compensation coefficient is updated.

8. The control method of the valve-actuated material selection device based on a database according to claim 7, characterized in that: In step 2, the target rotation angle is calculated as follows: ； in, is the target rotation angle, is the standard indexing angle, is the temperature compensation coefficient, is the temperature deviation, is the humidity compensation coefficient, is the humidity deviation, is the equipment wear coefficient, is the accumulated wear value.

9. The control method of the valve-actuated material selection device based on a database according to claim 7, characterized in that: In step 3, the injection component adopts a phased injection method during the process of injecting the raw materials, and the injection amount is gradually reduced each time.

Images