CN117245871A - Injection molding machine control system with high position repetition precision - Google Patents
Injection molding machine control system with high position repetition precision Download PDFInfo
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- CN117245871A CN117245871A CN202311255231.2A CN202311255231A CN117245871A CN 117245871 A CN117245871 A CN 117245871A CN 202311255231 A CN202311255231 A CN 202311255231A CN 117245871 A CN117245871 A CN 117245871A
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- injection molding
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- molding machine
- hydraulic mechanism
- control system
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 127
- 230000007246 mechanism Effects 0.000 claims abstract description 70
- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000007924 injection Substances 0.000 description 45
- 238000002347 injection Methods 0.000 description 45
- 238000001514 detection method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/7605—Viscosity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76083—Position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76568—Position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76822—Phase or stage of control
- B29C2945/76859—Injection
Abstract
The invention relates to an injection molding machine control system with high position repetition precision, and belongs to the technical field of injection molding. The invention relates to a hydraulic injection molding machine, which comprises a control module, an injection molding mechanism, a hydraulic mechanism, a viscosity detector, a pressure sensor and a displacement sensor, wherein the injection molding mechanism, the hydraulic mechanism, the viscosity detector, the pressure sensor and the displacement sensor are in communication connection with the control module, the viscosity detector and the displacement sensor are both arranged in the injection molding mechanism and detect the material viscosity and the injection molding position in the injection molding mechanism, the pressure sensor is arranged in the hydraulic mechanism and detects the pressure provided by the hydraulic mechanism, and the control module adjusts the output force of the hydraulic mechanism according to the results of the displacement sensor and the viscosity detector and monitors the output force through the pressure sensor to realize negative feedback.
Description
Technical Field
The invention belongs to the technical field of injection molding, and particularly relates to an injection molding machine control system with high position repetition precision.
Background
Because the injection molding process is very complicated, the precision of injection molded products is generally divided into appearance quality including dimensional precision, smoothness, etc., and internal quality including strength, toughness, internal stress distribution, molecular orientation force, etc. The appearance shape, the size, the polymer raw materials of different products are different, and the like, so that appearance quality indexes such as appearance size and the like are difficult to be suitable for all injection molding products, and therefore, the injection molding industry currently generally adopts injection molding repetition precision to describe the quality of injection molding products, namely, repeated injection molding products are repeated for a plurality of times in weight to describe the injection molding quality, and therefore, how to realize high repetition precision control of injection molding is a key problem of injection molding control.
The key process of injection molding is injection and pressure maintaining, so that high-precision injection repetition precision can be realized only by precisely controlling the injection and pressure maintaining processes. In order to realize the injection repetition precision control, the control precision of process parameters, such as the speed, pressure and position of the injection and pressure maintaining process, is high.
The conventional injection molding machine only transmits the electronic ruler signal to the upper computer for display and check, and does not carry out position closed-loop adjustment, and strictly speaking, the servo control system of the conventional injection molding machine is only a semi-closed-loop system, for example, fig. 1 is a control system of the conventional injection molding machine, and only feeds back the motor rotation speed through an encoder, but cannot effectively carry out closed-loop control on the load position.
Therefore, achieving high repetition accuracy control of injection molding in order to improve the positional accuracy during injection is a key issue in injection molding control.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an injection molding machine control system with high position repetition precision, and solves the problem that the existing injection molding machine system cannot effectively control the position of a load to cause low repetition precision.
The aim of the invention can be achieved by the following technical scheme: the utility model provides an injection molding machine control system of high position repetition precision, includes control module and with control module communication connection's injection molding machine, hydraulic pressure mechanism, viscosity detector, pressure sensor and displacement sensor, viscosity detector and displacement sensor all install in injection molding machine and detect the material viscosity in the mechanism of moulding plastics and the position of moulding plastics, pressure sensor installs in hydraulic pressure mechanism and detects the pressure that hydraulic pressure mechanism provided, control module adjusts hydraulic pressure mechanism's output force and monitors through pressure sensor according to displacement sensor and viscosity detector's result and realize the negative feedback.
As a preferable technical scheme of the invention, the injection molding mechanism comprises an injection molding cylinder, a screw rod, a hopper and a driving assembly, wherein the screw rod is positioned in the injection molding cylinder, the tail part of the screw rod is connected with the driving assembly, the driving assembly is connected with the hydraulic mechanism, an injection molding opening is formed in the top of the injection molding cylinder, the hopper is arranged on the injection molding opening, the viscosity detector is arranged in the injection molding cylinder, and the displacement sensor is arranged on the screw rod.
As a preferred embodiment of the present invention, the drive assembly is composed of a hydraulic motor.
As a preferable technical scheme of the invention, the injection molding mechanism is also internally provided with a temperature detector, the temperature detector is arranged in the injection molding cylinder, and the temperature detector detects the temperature of the injection molding cylinder and is in communication connection with the control module.
As a preferable technical scheme of the invention, the control module comprises a frequency converter, a pressure control algorithm unit, a position closed-loop algorithm unit and a rotating speed closed-loop algorithm unit, wherein the pressure control algorithm unit and the position closed-loop algorithm unit are calculated according to input preset instructions and then are transmitted to the frequency converter, the frequency converter outputs rotating speed values to the rotating speed closed-loop algorithm unit according to received data, the rotating speed closed-loop algorithm unit is calculated according to the received rotating speed values and preset flow instructions and then is output to a hydraulic mechanism, and the hydraulic mechanism adjusts output force according to the received data so that the injection molding position of the injection molding mechanism reaches the preset position.
As a preferable technical scheme of the invention, the control module further comprises an encoder, and the encoder feeds back the execution effect of the hydraulic mechanism to the input end of the rotating speed closed loop algorithm unit.
As a preferred solution of the present invention, the viscosity detector and the temperature detector both cause interference in the calculation of the position closed loop algorithm unit.
As a preferred technical scheme of the invention, the displacement sensor feeds back the injection molding position to the input end of the position closed-loop algorithm unit.
As a preferred technical scheme of the invention, the pressure sensor transmits and feeds back pressure data of the hydraulic mechanism to the input end of the pressure control algorithm unit.
The beneficial effects of the invention are as follows: the injection molding machine has the advantages that the material viscosity in the injection molding mechanism and the injection molding position are detected, the detection result is input into the control module as feedback, the pressure sensor is used for detecting the output force of the hydraulic mechanism, the input force of the hydraulic mechanism is controlled through algorithm calculation in the control module, the injection molding position is adjusted, the injection molding machine can accurately control the injection molding position according to different load conditions when the injection molding machine performs injection molding, and the problem that the existing injection molding machine system cannot effectively control the load position to cause low repetition precision is solved.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of a control system of a conventional injection molding machine;
FIG. 2 is a schematic diagram of a control system of the injection molding machine of the present invention;
FIG. 3 is a schematic diagram of an injection molding machine according to the present invention;
description of the main reference signs
In the figure: 1. an injection molding mechanism; 11. an injection molding cylinder; 12. a screw; 13. a hopper; 14. a drive assembly; 2. a hydraulic mechanism; 3. a viscosity detector; 4. a pressure sensor; 5. a displacement sensor; 6. a temperature detector; 71. a frequency converter; 72. a pressure control algorithm unit; 73. a position closed loop algorithm unit; 74. a rotating speed closed loop algorithm unit; 75. an encoder.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-3, the embodiment provides a control system of an injection molding machine with high position repetition precision, which comprises a control module, an injection molding mechanism 1, a hydraulic mechanism 2, a viscosity detector 3, a pressure sensor 4 and a displacement sensor 5, wherein the injection molding mechanism 1, the hydraulic mechanism 2, the viscosity detector 3 and the displacement sensor 5 are in communication connection with the control module, the viscosity detector 3 and the displacement sensor 5 are respectively arranged in the injection molding mechanism 1 and detect the viscosity of the material in the injection molding mechanism 1 and the position of the injection molding, the pressure sensor 4 is arranged in the hydraulic mechanism 2 and detects the pressure provided by the hydraulic mechanism 2, the control module adjusts the output force of the hydraulic mechanism 2 according to the results of the displacement sensor 5 and the viscosity detector 3 and monitors the output force of the hydraulic mechanism 2 through the pressure sensor 4 to realize negative feedback, in the injection molding process, the preset parameters are firstly input into the injection molding machine, in the injection molding process, the viscosity detector 3, the displacement sensor 5 and the pressure sensor 4 detect the viscosity of the material in the injection molding mechanism 1, the injection molding position and the output force of the hydraulic mechanism 2 at the moment respectively, if the viscosity of the material is larger than the preset viscosity is detected, the detection position of the material in the injection molding process is larger than the preset viscosity, the detection position of the displacement sensor 5 is smaller than the preset value, the preset position of the preset value is required to be calculated, and the hydraulic pressure sensor 2 is not required to be equal to the output to the preset value according to the result of the detection result; if the viscosity of the material is detected to be smaller than the preset viscosity at the moment, the resistance generated in the injection molding process is small, the injection molding position is larger than the preset position at the moment, and the situation of excessive injection molding is caused, the control module calculates the comparison according to the detection result of the pressure sensor 4 and the viscosity equivalent of the material, so that the hydraulic mechanism 2 can achieve the preset value by reducing the output force at the moment, and the calculation result is transmitted to the hydraulic mechanism 2 for adjustment; through the testing result of displacement sensor 5 and viscosity detector 3, through the calculation of control module and compare with the testing result of pressure sensor 4 and adjust the output value of hydraulic mechanism 2 to this guarantees the accuracy of injection position, makes the injection molding machine in injection molding's high repetition precision control, and reduces the time of injection molding machine adjustment, improves production efficiency.
In order to better detect the injection position and the material viscosity, in this embodiment, the injection mechanism 1 includes an injection cylinder 11, a screw 12, a hopper 13 and a driving component 14, the screw 12 is located in the injection cylinder 11 and the tail is connected with the driving component 14, the driving component 14 is connected with the hydraulic mechanism 2, the injection port is formed in the top of the injection cylinder 11, the hopper 13 is mounted on the injection port, the viscosity detector 3 is mounted in the injection cylinder 11, the displacement sensor 5 is mounted on the screw 12, during injection, materials enter the injection cylinder 11 from the hopper 13 to melt, the driving component 14 drives the screw 12 to inject the melted materials, the viscosity detector 3 located in the injection cylinder 11 detects the viscosity of the materials, meanwhile, after the viscosity detector 3 detects the viscosity of the materials and transmits the detection result to the control module to enable the hydraulic mechanism 2 to adjust the output value, after the screw 12 reaches the injection position, the displacement sensor 5 detects the injection position at the moment, and transmits the detection result to the control module to judge whether the injection position is consistent with the preset position, if the preset position is inconsistent with the preset position, the preset position is again, the accuracy is ensured, and the final adjustment is carried out if the preset position is not consistent.
In order to better complete the injection molding process, in an embodiment, the driving assembly 14 is composed of a hydraulic motor, the response speed of the hydraulic motor is very high, and large torque can be generated in a short time, so that the hydraulic motor is adjusted according to the control of the control module more quickly, and when the hydraulic motor works, the friction coefficient of the driving part of the hydraulic motor is small, and the output and transmission force is stable, so that the hydraulic motor works stably and reliably, meanwhile, the hydraulic motor can conveniently control the working state through the hydraulic control system, and the output torque and the rotating speed of the hydraulic motor are finely adjusted, so that the output force can be more accurate.
In order to better control the injection molding process, improve the injection molding repetition precision, in an embodiment, a temperature detector 6 is further arranged in the injection molding mechanism 1, the temperature detector 6 is installed in the injection molding cylinder 11, the temperature of the injection molding cylinder 11 is detected by the temperature detector 6, the injection molding temperature in the injection molding cylinder 11 is detected by the temperature detector 6, and the detection result is transmitted to a control module, and the temperature of the injection molding cylinder 11 can be kept consistent in the injection molding process through the adjustment of the control module, so that the reduction of resistance caused by the reduction of the viscosity of the material due to the excessively high temperature in the injection molding process is avoided, the injection molding position of the screw 12 is far away from the injection molding position, or the increase of the resistance caused by the excessively low temperature in the injection molding cylinder 11, the injection molding position of the screw 12 is smaller than the preset injection molding position, and the injection molding quality is reduced due to the change of the temperature.
In addition, the viscosities of the solutions of different materials at the same temperature are different, so that the temperature detector 6 is matched with the viscosity detector 3 to obtain the viscosity of the different materials at the same temperature, the debugging time for injection molding production of the different materials is reduced, and the injection molding repetition precision is improved.
In order to better control the injection position and improve the precision of the injection position, thereby improving the repetition precision of injection, in one embodiment, the control module comprises a frequency converter 71, a pressure control algorithm unit 72, a position closed-loop algorithm unit 73 and a rotating speed closed-loop algorithm unit 74, wherein the pressure control algorithm unit 72 and the position closed-loop algorithm unit 73 are calculated according to input preset instructions and then are transmitted to the frequency converter 71, the frequency converter 71 outputs a rotating speed value to the rotating speed closed-loop algorithm unit 74 according to received data, the rotating speed closed-loop algorithm unit 74 is calculated according to the received rotating speed value and preset flow instructions and then is output to the hydraulic mechanism 2, the hydraulic mechanism 2 adjusts output force according to the received data so that the injection position of the injection mechanism 1 reaches the preset position, and when injection is performed, the injection machine inputs the pressure instruction of the initial hydraulic mechanism 2 and the injection position instruction to the pressure control algorithm unit 72 and the position closed-loop algorithm unit 73 to calculate, the pressure control algorithm unit 72 and the position closed-loop algorithm unit 73 are transmitted to the frequency converter 71 according to the calculated result to obtain the rotating speed of the screw 12, and the rotating speed closed-loop algorithm unit 74 is calculated according to the received rotating speed value and the preset flow instruction and then is output to the hydraulic mechanism 2 to obtain the injection position of the screw 12, and then the injection process is completed; the screw 12 can accurately reach the injection molding position by calculating through different algorithms, and the repetition precision of injection molding is improved.
In order to better obtain the accurate rotation speed to reduce the error of the injection molding position, in an embodiment, the control module further includes an encoder 75, the encoder 75 feeds back the execution effect in the hydraulic mechanism 2 to the input end of the rotation speed closed-loop algorithm unit 74, and provides accurate position and speed feedback signals through the encoder 75, so that the control module can monitor and control the motion process more accurately, ensure to grasp the current position information in real time, so as to realize more accurate position control, and can react and adjust the output value of the rotation speed closed-loop algorithm unit 74 in real time, thereby improving the stability of the system.
In order to further reduce the error of the injection position in the injection process, in an embodiment, the viscosity detector 3 and the temperature detector 6 both interfere with the calculation of the position closed-loop algorithm unit 73, and the viscosity and the temperature of the material can affect the injection process, so that the viscosity and the temperature of the material are input into the position closed-loop algorithm unit 73 as interference values, the precision of the injection position is improved by calculating the interference values, and the reduction of the injection position precision caused by the error of the position calculation caused by external factors is avoided, thereby reducing the repetition precision of injection.
In order to make the injection position coincide with the predetermined position, the error is reduced, and in one embodiment, the displacement sensor 5 feeds back the injection position to the input of the position closed-loop algorithm unit 73, and in the whole closed-loop control, factors having a great influence on the accuracy are temperature and the accuracy of the displacement sensor 5. Tests show that when the oil temperature exceeds 45 degrees, the repeated precision of the conventional injection is changed greatly, so that a temperature dynamic compensation algorithm is added in a position closed-loop algorithm to compensate the repeated precision change caused by the oil viscosity change; the accuracy of the displacement sensor 5 determines the accuracy of the feedback reading, and when the accuracy of the displacement sensor 5 is low, the larger the change in the feedback to the algorithm is, the larger the deviation occurs, the algorithm can be adjusted or the supplementary algorithm can be called.
In order to improve the accuracy of the injection position and to extend the service life of the injection machine, in one embodiment, the pressure sensor 4 feeds back the pressure data transmission of the hydraulic mechanism 2 to the input end of the pressure control algorithm unit 72, and the frequency converter 71 compares the pressure fed back by the pressure sensor 4 with a set maximum pressure during the whole injection action, and if the pressure reaches the maximum pressure, the position closed-loop algorithm is stopped, and the pressure loop is started to control, so that the machine structure can be protected, and damage caused by the excessive pressure can be prevented. When the injection position reaches the set position, the frequency converter 71 makes the position closed-loop algorithm stop, and then sends a position closed-loop algorithm end signal by SDO.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (9)
1. The utility model provides a high position repetition accuracy's injection molding machine control system which characterized in that: the device comprises a control module, an injection molding mechanism, a hydraulic mechanism, a viscosity detector, a pressure sensor and a displacement sensor, wherein the injection molding mechanism, the hydraulic mechanism, the viscosity detector, the pressure sensor and the displacement sensor are in communication connection with the control module, the viscosity detector and the displacement sensor are all installed in the injection molding mechanism and detect the viscosity of materials in the injection molding mechanism and the injection molding position, the pressure sensor is installed in the hydraulic mechanism and detects the pressure provided by the hydraulic mechanism, and the control module adjusts the output force of the hydraulic mechanism according to the results of the displacement sensor and the viscosity detector and monitors the output force through the pressure sensor to realize negative feedback.
2. The high position repeat precision injection molding machine control system of claim 1, wherein: the injection molding mechanism comprises an injection molding barrel, a screw rod, a hopper and a driving assembly, wherein the screw rod is positioned in the injection molding barrel, the tail part of the screw rod is connected with the driving assembly, the driving assembly is connected with the hydraulic mechanism, an injection molding opening is formed in the top of the injection molding barrel, the hopper is arranged on the injection molding opening, the viscosity detector is arranged in the injection molding barrel, and the displacement sensor is arranged on the screw rod.
3. The high position repeat precision injection molding machine control system of claim 2, wherein: the drive assembly is comprised of a hydraulic motor.
4. The high position repeat precision injection molding machine control system of claim 2, wherein: the injection molding machine is characterized in that a temperature detector is further arranged in the injection molding mechanism, the temperature detector is arranged in the injection molding cylinder, and the temperature detector detects the temperature of the injection molding cylinder and is in communication connection with the control module.
5. The high position repeat precision injection molding machine control system of claim 4, wherein: the control module comprises a frequency converter, a pressure control algorithm unit, a position closed-loop algorithm unit and a rotating speed closed-loop algorithm unit, wherein the pressure control algorithm unit and the position closed-loop algorithm unit are calculated according to input preset instructions and then are transmitted to the frequency converter, the frequency converter outputs rotating speed values to the rotating speed closed-loop algorithm unit according to received data, the rotating speed closed-loop algorithm unit is calculated according to the received rotating speed values and preset flow instructions and then is output to a hydraulic mechanism, and the hydraulic mechanism adjusts output force according to the received data so that the injection molding position of the injection molding mechanism reaches the preset position.
6. The high position repeat precision injection molding machine control system of claim 5, wherein: the control module further comprises an encoder, and the encoder feeds back the execution effect of the hydraulic mechanism to the input end of the rotating speed closed loop algorithm unit.
7. The high position repeat precision injection molding machine control system of claim 5, wherein: the viscosity detector and the temperature detector both interfere with the computation of the position closed loop algorithm unit.
8. The high position repeat precision injection molding machine control system of claim 5, wherein: the displacement sensor feeds back the injection molding position to the input end of the position closed-loop algorithm unit.
9. The high position repeat precision injection molding machine control system of claim 5, wherein: the pressure sensor transmits and feeds back pressure data of the hydraulic mechanism to the input end of the pressure control algorithm unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311255231.2A CN117245871A (en) | 2023-09-27 | 2023-09-27 | Injection molding machine control system with high position repetition precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311255231.2A CN117245871A (en) | 2023-09-27 | 2023-09-27 | Injection molding machine control system with high position repetition precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117245871A true CN117245871A (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311255231.2A Pending CN117245871A (en) | 2023-09-27 | 2023-09-27 | Injection molding machine control system with high position repetition precision |
Country Status (1)
| Country | Link |
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| CN (1) | CN117245871A (en) |
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2023
- 2023-09-27 CN CN202311255231.2A patent/CN117245871A/en active Pending
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