An intelligent control system for the injection molding process of dust suction hose

Abstract

The present invention belongs to the technical field of vacuum hose injection molding control, and specifically discloses an intelligent control system for vacuum hose injection molding process, the system comprising a plastic injection molding monitoring module, a plastic injection molding judgment module, a steel wire spiral monitoring module, a steel wire spiral judgment module, a steel wire embedding monitoring module, a steel wire embedding judgment module, an information base, and an equipment operation control terminal; the present invention reduces the scrap rate of the vacuum hose by preparatory monitoring and control of the spiral state before the steel wire is embedded in the hose, thereby avoiding waste of resources, and at the same time, by monitoring and controlling the embedding state of the steel wire when it is embedded in the hose, solves the lag problem of only monitoring the spiral state after the steel wire is completely spirally embedded in the hose, realizes real-time monitoring and control of the steel wire spirally embedded hose, avoids the problem of untimely control, thereby ensuring the subsequent molding quality and ensuring the durability of subsequent use.

Description

Technical Field

[0001] The invention belongs to the technical field of dust suction hose injection molding control and relates to an intelligent control system for a dust suction hose injection molding process. Background Art

[0002] The vacuum hose is a key component of the vacuum cleaner. It connects the vacuum cleaner main unit and various vacuum accessories. It is widely used in vacuum cleaner accessories, cleaning equipment, medical equipment, industrial hoses and other fields. The vacuum hose is usually obtained by injection molding. In order to ensure the durability of the vacuum hose, it is necessary to control its injection molding.

[0003] Currently, the control of vacuum hose injection molding is mainly concentrated on the injection molding end, and insufficient attention is paid to the subsequent molding end. There are also the following deficiencies: 1. Currently, there is no preparatory monitoring and control of the spiral state of the steel wire spiral before it is embedded in the hose, which leads to an increase in the scrap rate of the vacuum hose, thereby causing waste of resources and reduced production efficiency.

[0004] 2. Currently, only the spiral state of the steel wire after it is completely spirally embedded in the hose is monitored, and real-time monitoring and control of the steel wire spirally embedded in the hose is not performed. There is a problem of untimely control, which makes it impossible to guarantee the subsequent molding quality and the durability of subsequent use. Summary of the invention

[0005] In view of this, in order to solve the problems raised in the above background technology, an intelligent control system for the injection molding process of a vacuum hose is now proposed.

[0006] The purpose of the present invention can be achieved through the following technical solutions: The present invention provides an intelligent control system for the injection molding process of a dust suction hose, the system comprising: a plastic injection monitoring module, used to record the target processed dust suction hose as a target hose and monitor the injection molding data of the target hose.

[0007] The plastic injection molding judgment module is used to judge the injection molding state. If the injection molding state is qualified, the wire spiral monitoring module is started.

[0008] The wire spiral monitoring module is used to monitor the spiral data of the current wire spiral equipment, including the number of wire spiral turns, the outer diameter of each spiral wire and the spacing between each spiral wire, and monitor the rotation speed of the spiral tube in the current spiral equipment.

[0009] The wire spiral judgment module is used to judge the spiral state. If the spiral state is unqualified, the equipment operation control terminal is started, otherwise the wire embedding monitoring module is started.

[0010] The steel wire embedding monitoring module is used to monitor the image of the steel wire embedded in the hose when the target hose is being steel wire embedded.

[0011] The steel wire embedding judgment module is used to judge the steel wire embedding state. If the steel wire embedding state is unqualified, the equipment operation control terminal is started.

[0012] The information library is used to store the number of bubbles, bubble area, number of voids and void area allowed during injection molding of the target hose, store the standard hose outer diameter and standard wall thickness of the target hose, store the standard steel wire embedding image corresponding to the target hose, and store the standard spiral pitch of the steel wire, standard steel wire outer diameter, allowed spiral pitch range and allowed steel wire outer diameter range when the target hose is embedded with the steel wire.

[0013] The equipment operation control terminal is used to confirm the spiral control speed value of the spiral equipment and the embedded control speed value of the spiral equipment, and perform spiral control and embedded control respectively according to the spiral control speed value and the embedded control speed value of the spiral equipment.

[0014] Furthermore, the injection molding state judgment includes: extracting the number of bubbles, the total bubble area, the number of cavities and the total cavity area from the injection molding data of the target hose, and recording them as , , and , and then calculate the injection state defect degree .

[0015] The hose outer diameter and hose wall thickness are extracted from the injection molding data of the target hose and recorded as and , and extract the standard hose outer diameter and standard wall thickness of the target hose from the information database, which are recorded as and .

[0016] Statistics of injection molding dimensional conformity , , and They are the reference hose outer diameter difference and hose wall thickness difference.

[0017] Statistical injection molding state consistency , , and The reference injection molding state defect degree and injection molding state dimensional conformity are set respectively.

[0018] like , the injection molding state is unqualified as the injection molding state judgment result, otherwise the injection molding state is qualified as the injection molding state judgment result.

[0019] Furthermore, the statistical injection molding defect degree includes: extracting the number of bubbles, bubble area, number of cavities and area allowed during injection molding of the target hose from the information database, and recording them as , , and .

[0020] Statistics of injection molding defects , , Represents a natural constant.

[0021] Furthermore, the spiral state judgment includes: recording the number of spiral turns of the steel wire and the outer diameter of the steel wire corresponding to each spiral turn of the steel wire as and , The number of spiral turns of the wire is numbered. , and then analyze the wire outer diameter fit .

[0022] According to the number of spiral turns of the steel wire, the spiral steel wires are grouped into spiral steel wire groups in pairs. According to the distance between the spiral steel wires in each spiral steel wire group, the wire spacing consistency is obtained by analyzing the wire outer diameter consistency in the same way. .

[0023] Statistical spiral state consistency , , and They are respectively the reference wire outer diameter fit and wire spacing fit.

[0024] like , then the spiral state is unqualified as the spiral state judgment result, otherwise the spiral state is qualified as the spiral state judgment result.

[0025] Furthermore, the analysis of the steel wire outer diameter matching degree includes: extracting the standard steel wire outer diameter and the permitted steel wire outer diameter range of the steel wire when the target hose corresponds to the steel wire embedded in the information library, recording the standard steel wire outer diameter as , and make a difference between the upper limit of the permitted outer diameter range and the standard outer diameter of the steel wire, and take the difference as the standard deviation of the outer diameter of the steel wire, recorded as .

[0026] The outer diameter of each spiral wire is subtracted from the outer diameter of the standard wire to obtain the outer diameter difference of each wire. If the outer diameter difference of a certain wire is within the allowable outer diameter difference range, the spiral wire corresponding to the outer diameter difference of the wire is recorded as qualified wire. The number of qualified wires is counted and recorded as .

[0027] The maximum outer diameter and the minimum outer diameter are extracted from the outer diameters corresponding to each coil of spiral wire and recorded as and .

[0028] Statistics of wire outer diameter fit , , and They are respectively the reference qualified wire outer diameter number ratio and wire outer diameter difference.

[0029] Furthermore, the wire embedding state judgment comprises: extracting a standard wire embedding image corresponding to the target hose from the information library, overlaying and comparing the standard wire embedding image with the image of the wire embedded in the hose, and then calculating the wire embedding position coincidence degree. .

[0030] According to the image of the wire embedded in the hose, the embedding angle of each wire loop is confirmed, and then the consistency of the wire embedding posture is analyzed. .

[0031] Statistics of wire embedding state consistency , , and are the influence weights of the set wire embedding position fit and the influence weights of the wire embedding posture fit, respectively. , .

[0032] like , then the embedded state is unqualified as the wire embedded state judgment result, otherwise the wire embedded state is qualified as the wire embedded state judgment result.

[0033] Furthermore, the counting of the degree of coincidence of the steel wire embedding position includes: if the position of a circle of steel wire in the image where the steel wire has been embedded in the hose completely coincides with the position of a circle of steel wire in the standard steel wire embedding image, then the circle of steel wire is recorded as a steel wire circle with a qualified position embedding, and the number of steel wire circles with a qualified position embedding is counted and recorded as , and extract the number of embedded wire loops from the image where the wire has been embedded in the hose, recorded as .

[0034] Statistics of wire embedding position fit , , The ratio of the number of qualified wire rings used as reference is set.

[0035] Furthermore, the analysis of the conformity of the wire embedding posture includes: confirming the embedding inclination angle of each circle of wire according to the image of the wire embedded in the hose, and similarly confirming the embedding inclination angle of the reference wire in the standard wire embedding image corresponding to the target hose, and recording the embedding inclination angle of each circle of wire and the embedding inclination angle of the reference wire as and , The number of the wire embedded in the hose ring. .

[0036] Statistics of wire embedding posture consistency , , The inclination difference of the reference wire embedded in the hose is set.

[0037] Furthermore, the determination of the spiral control speed value of the spiral device includes: A1, extracting the spiral outer diameter fit The matching degree of wire spacing ,like and , judge that the current spiral control mode is the spiral outer diameter control mode, calculate the average outer diameter of each spiral wire corresponding to the spiral wire, and get the average outer diameter value, which is recorded as ,Will , , and The control factor judgment model is imported to output a control factor item, wherein the control factor item is one of the spiral tube speed being too fast and the spiral tube speed being too slow.

[0038] A2. If the control factor is that the current spiral tube speed is too fast, and The difference is matched with the corresponding set spiral speed difference of each control speed value to obtain a matching control speed value, and the difference between the current spiral tube speed and the matching control speed value is used as the spiral control speed value of the spiral device.

[0039] A3. If the control factor is that the current spiral tube speed is too slow, and The difference is matched with the corresponding set spiral speed difference of each control speed value to obtain a matching control speed value, and the sum of the current spiral tube speed and the matching control speed value is used as the spiral control speed value of the spiral device.

[0040] A4. If and , determine that the current spiral control mode is the spiral pitch control mode, and confirm the spiral control speed value of the spiral device under the spiral pitch control mode in the same way as the method for confirming the spiral control speed value of the spiral device under the spiral outer diameter control mode.

[0041] A5. If and , record the current control mode as the comprehensive control mode, and select the maximum value from the spiral control speed value of the spiral device in the spiral outer diameter control mode and the spiral control speed value of the spiral device in the spiral pitch control mode as the spiral control speed value of the spiral device under the comprehensive spiral control mode.

[0042] Furthermore, the confirmation of the embedded control speed value of the spiral device includes: extracting the maximum spacing, the minimum spacing and the spacing of each circle of steel wire embedded in the hose from the image of the steel wire embedded in the hose, and at the same time calculating the average of the spacing of each circle of steel wire to obtain the average spacing, and confirming the embedded control speed value of the spiral device in the same way according to the method for confirming the spiral control speed value of the spiral device under the spiral pitch control method.

[0043] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention reduces the scrap rate of the vacuum hose by preparatory monitoring and control of the spiral state of the steel wire before it is embedded in the hose, thereby avoiding waste of resources and improving production efficiency.

[0044] (2) When judging the spiral state of the steel wire, the present invention can more comprehensively evaluate the spiral state of the steel wire by analyzing the two dimensions of the steel wire outer diameter matching degree and the steel wire spacing matching degree, thereby improving the accuracy of the steel wire spiral state judgment, and at the same time facilitating timely management of the steel wire before embedding, thereby promoting the reliability of subsequent steel wire embedding.

[0045] (3) The present invention monitors and controls the embedding state of the steel wire when it is embedded in the hose, thereby solving the lag problem of the current spiral state monitoring that is only performed after the steel wire is completely spirally embedded in the hose. The present invention realizes real-time monitoring and control of the steel wire spirally embedded in the hose, avoiding the problem of untimely control, thereby ensuring the subsequent molding quality and the durability of subsequent use, while improving the market competitiveness of the vacuum hose and, on another level, improving customer satisfaction.

[0046] (4) When judging the embedded state of the steel wire, the present invention can more accurately judge the embedded state of the steel wire by analyzing the two indicators of the wire embedding position fit and the wire embedding posture fit, thereby reducing the misjudgment caused by a single indicator and improving the accuracy of the wire embedding state, thereby accurately regulating the subsequent wire embedding state.

[0047] (5) When confirming the spiral control speed value of the spiral equipment, the present invention confirms it through the spiral control mode and the control factor item, and performs targeted confirmation of the spiral control speed value according to different spiral control modes and control factor items, thereby avoiding the problem of low efficiency of the current multiple controls, improving the targetedness and effectiveness of the control, and reducing the impact on the quality of the subsequent steel wire embedded in the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0049] Figure 1 It is a schematic diagram of the connection of each module of the system of the present invention.

[0050] Figure 2 This is a schematic diagram of the target hose of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1 As shown, the present invention provides an intelligent control system for the injection molding process of a dust suction hose, the system comprising: a plastic injection molding monitoring module, a plastic injection molding judgment module, a steel wire spiral monitoring module, a steel wire spiral judgment module, a steel wire embedding monitoring module, a steel wire embedding judgment module, an information library, and an equipment operation control terminal.

[0053] In the above, the plastic injection molding judgment module is respectively connected to the plastic injection molding monitoring module, the wire spiral monitoring module and the information library, the wire spiral judgment module is respectively connected to the wire spiral monitoring module, the wire embedding monitoring module, the information library and the equipment operation control terminal, and the wire embedding judgment module is also respectively connected to the wire embedding monitoring module, the equipment operation control terminal and the information library.

[0054] The plastic injection molding monitoring module is used to record the target processing vacuum hose as the target hose and monitor the injection molding data of the target hose.

[0055] The plastic injection judging module is used to judge the injection state. If the injection state is qualified, the wire spiral monitoring module is started.

[0056] Exemplarily, the injection molding state judgment includes: extracting the number of bubbles, the total bubble area, the number of cavities and the total cavity area from the injection molding data of the target hose, and recording them as , , and , and then calculate the injection state defect degree .

[0057] Furthermore, the statistical injection molding defect degree includes: extracting the number of bubbles, bubble area, number of cavities and area allowed during injection molding of the target hose from the information database, and recording them as , , and .

[0058] Statistics of injection molding defects , , Represents a natural constant.

[0059] The hose outer diameter and hose wall thickness are extracted from the injection molding data of the target hose and recorded as and , and extract the standard hose outer diameter and standard wall thickness of the target hose from the information database, which are recorded as and .

[0060] It should be added that the outer diameter of the hose is monitored by a camera installed in the injection molded product monitoring area, the wall thickness of the hose is monitored by an ultrasonic thickness gauge installed in the injection molded product monitoring area, and the number of bubbles, bubble area, number of voids and void area are monitored by an X-ray detector installed in the injection molded product monitoring area.

[0061] Statistics of injection molding dimensional conformity , , and They are the reference hose outer diameter difference and hose wall thickness difference.

[0062] It should be added that and All of them are extracted from the hose injection molding technical specification table. For the convenience of analysis, and The specific values ​​can be 0.5 mm and 0.05 mm respectively.

[0063] Statistical injection molding state consistency , , and The reference injection molding state defect degree and injection molding state dimensional conformity are set respectively.

[0064] It should be added that When the value is 0.5, it indicates that the defect degree of injection molding is in a critical state. When the value is greater than 0.5, it indicates that there are defects in the injection molding state, so As a reference value for the degree of defects in the injection molding state, When the value is 0, it indicates that the size of the injection molding state is in the critical state, that is, it just meets the critical requirements. Therefore, The value of should be a real number greater than 0. For the convenience of analysis, the specific value can be 0.1.

[0065] like , the injection molding state is unqualified as the injection molding state judgment result, otherwise the injection molding state is qualified as the injection molding state judgment result.

[0066] The wire spiral monitoring module is used to monitor the spiral data of the current wire spiral equipment, including the number of wire spiral turns, the outer diameter of each spiral wire corresponding to each turn and the spacing between each spiral wire, and monitor the rotation speed of the spiral tube in the current spiral equipment.

[0067] It should be added that the number of spiral turns of the steel wire, the outer diameter of each spiral wire corresponding to the spiral wire, and the spacing between each spiral wire are all extracted from the corresponding images monitored by the camera, and the rotation speed of the spiral tube is monitored by a rotation speed sensor installed on the spiral equipment.

[0068] The wire spiral judgment module is used to judge the spiral state. If the spiral state is unqualified, the equipment operation control terminal is started, otherwise the wire embedding monitoring module is started.

[0069] Exemplarily, the spiral state judgment includes: recording the number of spiral turns of the steel wire and the outer diameter of the steel wire corresponding to each spiral turn of the steel wire as and , The number of spiral turns of the wire is numbered. , and then analyze the wire outer diameter fit .

[0070] Furthermore, the analysis of the steel wire outer diameter matching degree includes: extracting the standard steel wire outer diameter and the permitted steel wire outer diameter range of the steel wire when the target hose corresponds to the steel wire embedded in the information library, recording the standard steel wire outer diameter as , and make a difference between the upper limit of the permitted outer diameter range and the standard outer diameter of the steel wire, and take the difference as the standard deviation of the outer diameter of the steel wire, recorded as .

[0071] The outer diameter of each spiral wire is subtracted from the outer diameter of the standard wire to obtain the outer diameter difference of each wire. If the outer diameter difference of a certain wire is within the allowable outer diameter difference range, the spiral wire corresponding to the outer diameter difference of the wire is recorded as qualified wire. The number of qualified wires is counted and recorded as .

[0072] The maximum outer diameter and the minimum outer diameter are extracted from the outer diameters corresponding to each coil of spiral wire and recorded as and .

[0073] Statistics of wire outer diameter fit , , and They are respectively the reference qualified wire outer diameter number ratio and wire outer diameter difference.

[0074] It should be added that when the ratio of the number of qualified steel wires to the number of steel wire spiral turns is greater than 0.9, it indicates that the spiral state is qualified at this time, so The value can be 0.9. It is extracted from the hose injection molding technical specification table. For the convenience of analysis, The specific value can be 0.1 mm.

[0075] According to the number of spiral turns of the steel wire, the spiral steel wires are grouped into spiral steel wire groups in pairs. According to the distance between the spiral steel wires in each spiral steel wire group, the wire spacing consistency is obtained by analyzing the wire outer diameter consistency in the same way. .

[0076] Statistical spiral state consistency , , and They are respectively the reference wire outer diameter fit and wire spacing fit.

[0077] It should be added that When the value is 0, it indicates that the outer diameter of the wire is in a critical matching state, that is, when , indicating that the outer diameter of the steel wire meets the spiral requirements, so The value of should be a real number slightly greater than 0. For the convenience of analysis, The reference value of can be 0.1. The reference value can be The reference value of is obtained in the same way.

[0078] When judging the spiral state of the steel wire, the embodiment of the present invention can more comprehensively evaluate the spiral state of the steel wire by analyzing the two dimensions of the steel wire outer diameter matching degree and the steel wire spacing matching degree, thereby improving the accuracy of the steel wire spiral state judgment, and at the same time facilitating timely management of the steel wire before embedding, thereby promoting the reliability of subsequent steel wire embedding.

[0079] like , then the spiral state is unqualified as the spiral state judgment result, otherwise the spiral state is qualified as the spiral state judgment result.

[0080] The embodiment of the present invention reduces the scrap rate of the vacuum hose by preparatory monitoring and control of the spiral state of the steel wire before it is embedded in the hose, thereby avoiding waste of resources and improving production efficiency.

[0081] The steel wire embedding monitoring module is used to monitor the image of the steel wire being embedded in the target hose when the steel wire is embedded in the hose.

[0082] The steel wire embedding judgment module is used to judge the steel wire embedding state. If the steel wire embedding state is unqualified, the equipment operation control terminal is started.

[0083] Exemplarily, the wire embedding state judgment includes: extracting a standard wire embedding image corresponding to the target hose from the information library, overlaying and comparing the standard wire embedding image with the image of the wire embedded in the hose, and then calculating the wire embedding position coincidence degree. .

[0084] Furthermore, the counting of the degree of coincidence of the steel wire embedding position includes: if the position of a circle of steel wire in the image where the steel wire has been embedded in the hose completely coincides with the position of a circle of steel wire in the standard steel wire embedding image, then the circle of steel wire is recorded as a steel wire circle with a qualified position embedding, and the number of steel wire circles with a qualified position embedding is counted and recorded as , and extract the number of qualified embedded wire loops from the image of the wire embedded in the hose, recorded as .

[0085] Statistics of wire embedding position fit , , The ratio of the number of qualified wire rings used as reference is set.

[0086] It should be added that when the ratio of the number of wire rings embedded in the qualified position to the number of wire rings embedded in the qualified position is greater than 0.9, it indicates that the wire embedding state is qualified at this time, so The value can be 0.9.

[0087] According to the image of the wire embedded in the hose, the embedding angle of each wire loop is confirmed, and then the consistency of the wire embedding posture is analyzed. .

[0088] Furthermore, the analysis of the conformity of the wire embedding posture includes: confirming the embedding inclination angle of each circle of wire according to the image of the wire embedded in the hose, and similarly confirming the embedding inclination angle of the reference wire in the standard wire embedding image corresponding to the target hose, and recording the embedding inclination angle of each circle of wire and the embedding inclination angle of the reference wire as and , The number of the wire embedded in the hose ring. .

[0089] It should be added that the specific method for confirming the embedding angle of each circle of steel wire is: take the top and bottom points of each steel ring as the center line, and make a line parallel to the bottom surface of the hose as the reference line, and take the angle between each center line and its reference line as the embedding angle of each circle of steel wire.

[0090] Statistics of wire embedding posture consistency , , The inclination difference of the reference wire embedded in the hose is set.

[0091] It should be added that It is extracted from the hose injection molding technical specification table. For the convenience of analysis, The specific value can be 5 degrees.

[0092] Statistics of wire embedding state consistency , , and are the influence weights of the set wire embedding position fit and the influence weights of the wire embedding posture fit, respectively. , .

[0093] It should be added that the weight of the influence of the wire embedding position fit is set smaller than the weight of the influence of the wire embedding posture fit because the fit of the wire embedding posture is directly related to the interaction and stress distribution between the wire and the plastic material, so the weight of the influence of the wire embedding posture fit is usually given a higher proportion. For the convenience of analysis, the specific value of the fit influence weight can be , .

[0094] When judging the embedded state of the steel wire, the embodiment of the present invention can more accurately judge the embedded state of the steel wire by analyzing the two indicators of the wire embedding position fit and the wire embedding posture fit, thereby reducing the misjudgment caused by a single indicator and improving the accuracy of the wire embedding state, thereby accurately regulating the subsequent wire embedding state.

[0095] like , then the embedded state is unqualified as the wire embedded state judgment result, otherwise the wire embedded state is qualified as the wire embedded state judgment result.

[0096] The embodiment of the present invention monitors and controls the embedding state of the steel wire when it is embedded in the hose, thereby solving the lag problem of the current spiral state monitoring only after the steel wire is completely spirally embedded in the hose, and realizes real-time monitoring and control of the steel wire spirally embedded in the hose, avoiding the problem of untimely control, thereby ensuring the subsequent molding quality and the durability of subsequent use, while improving the market competitiveness of the vacuum hose and improving customer satisfaction on another level.

[0097] The information database is used to store the number of bubbles, bubble area, number of holes and hole area allowed during injection molding of the target hose, store the standard hose outer diameter and standard wall thickness of the target hose, store the standard steel wire embedding image corresponding to the target hose, and store the standard spiral pitch of the steel wire, standard steel wire outer diameter, allowed spiral pitch range and allowed steel wire outer diameter range when the target hose is embedded with the steel wire.

[0098] The equipment operation control terminal is used to confirm the spiral control speed value of the spiral equipment and the embedded control speed value of the spiral equipment, and perform spiral control and embedded control respectively according to the spiral control speed value and the embedded control speed value of the spiral equipment.

[0099] Exemplarily, the determination of the spiral control speed value of the spiral device includes: A1, extracting the spiral outer diameter fit The matching degree of wire spacing ,like and , judge that the current spiral control mode is the spiral outer diameter control mode, calculate the average outer diameter of each spiral wire corresponding to the spiral wire, and get the average outer diameter value, which is recorded as ,Will , , and The control factor judgment model is imported to output a control factor item, wherein the control factor item is one of the spiral tube speed being too fast and the spiral tube speed being too slow.

[0100] It should be added that the specific confirmation process of the control cause judgment model is as follows: and Make a difference to get the maximum outer diameter difference, and and If the maximum and minimum outer diameter differences are both within the allowed outer diameter difference range, and For comparison, when At this time, the spiral tube speed is too fast as the control factor, otherwise the spiral tube speed is too slow as the control factor.

[0101] If the maximum outer diameter difference is not within the permitted outer diameter difference range and the minimum outer diameter difference is within or not within the permitted outer diameter difference range, and For comparison, when At this time, the spiral tube speed is too fast as the control factor, otherwise the spiral tube speed is too slow as the control factor.

[0102] If the minimum outer diameter difference is not within the permitted outer diameter difference range and the maximum outer diameter difference is within the permitted outer diameter difference range, and For comparison, when At this time, the spiral tube speed is too fast as the control factor, otherwise the spiral tube speed is too slow as the control factor.

[0103] A2. If the control factor is that the current spiral tube speed is too fast, and The difference is matched with the corresponding set spiral speed difference of each control speed value to obtain a matching control speed value, and the difference between the current spiral tube speed and the matching control speed value is used as the spiral control speed value of the spiral device.

[0104] A3. If the control factor is that the current spiral tube speed is too slow, and The difference is matched with the corresponding set spiral speed difference of each control speed value to obtain a matching control speed value, and the sum of the current spiral tube speed and the matching control speed value is used as the spiral control speed value of the spiral device.

[0105] A4. If and , determine that the current spiral control mode is the spiral pitch control mode, and confirm the spiral control speed value of the spiral device under the spiral pitch control mode in the same way as the method for confirming the spiral control speed value of the spiral device under the spiral outer diameter control mode.

[0106] A5. If and , record the current control mode as the comprehensive control mode, and select the maximum value from the spiral control speed value of the spiral device in the spiral outer diameter control mode and the spiral control speed value of the spiral device in the spiral pitch control mode as the spiral control speed value of the spiral device under the comprehensive spiral control mode.

[0107] It should be added that controlling with the maximum deviation can ensure the effectiveness of the spiral control method.

[0108] When confirming the spiral control speed value of the spiral equipment, the embodiment of the present invention confirms it through the spiral control mode and the control factor item, and performs targeted confirmation of the spiral control speed value according to different spiral control modes and control factor items, thereby avoiding the problem of low efficiency of the current multiple controls, improving the targetedness and effectiveness of the control, and reducing the impact on the quality of the subsequent steel wire embedded finished product.

[0109] Exemplarily, the method of confirming the embedded control speed value of the spiral device includes: extracting the maximum spacing, the minimum spacing and the spacing of each circle of steel wire embedded in the hose from the image of the steel wire embedded in the hose, and at the same time calculating the average of the spacing of each circle of steel wire to obtain the average spacing, and confirming the embedded control speed value of the spiral device in the same way according to the method for confirming the spiral control speed value of the spiral device under the spiral pitch control method.

[0110] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. An intelligent control system for the injection molding process of a vacuum hose, characterized in that: The system includes: A plastic injection molding monitoring module, used for recording a target processing vacuum hose as a target hose and monitoring the injection molding data of the target hose; Plastic injection judgment module, used to judge the injection state. If the injection state is qualified, the wire spiral monitoring module is started; The wire spiral monitoring module is used to monitor the spiral data of the current wire spiral equipment, including the number of wire spiral turns, the outer diameter of each spiral wire and the spacing between each spiral wire, and monitor the rotation speed of the spiral tube in the current spiral equipment; The wire spiral judgment module is used to judge the spiral state. If the spiral state is unqualified, the equipment operation control terminal is started, otherwise the wire embedding monitoring module is started; A steel wire embedding monitoring module is used to monitor the image of the steel wire being embedded in the target hose when the steel wire is embedded in the hose; The wire embedding judgment module is used to judge the wire embedding state. If the wire embedding state is unqualified, the equipment operation control terminal is started; An information library for storing the number of bubbles, bubble area, number of cavities and cavities area permitted during injection molding of a target hose, storing the standard hose outer diameter and standard wall thickness of the target hose, storing the standard steel wire embedding image corresponding to the target hose, and storing the standard spiral pitch, standard steel wire outer diameter, permitted spiral pitch range and permitted steel wire outer diameter range of the steel wire when the target hose is embedded; The equipment operation control terminal is used to confirm the spiral control speed value of the spiral equipment and the embedded control speed value of the spiral equipment, and perform spiral control and embedded control respectively according to the spiral control speed value and the embedded control speed value of the spiral equipment.

2. According to claim 1, the intelligent control system for the injection molding process of a vacuum hose is characterized by: The step of judging the injection molding state includes: The number of bubbles, total bubble area, number of voids and total void area are extracted from the injection molding data of the target hose and recorded as , , and , and then calculate the injection state defect degree ; The hose outer diameter and hose wall thickness are extracted from the injection molding data of the target hose and recorded as and , and extract the standard hose outer diameter and standard wall thickness of the target hose from the information database, which are recorded as and ; Statistics of injection molding dimensional conformity , , and They are the difference in hose outer diameter and hose wall thickness for setting reference respectively; Statistical injection molding state consistency , , and The reference injection molding state defect degree and injection molding state dimensional conformity are set respectively; like , the injection molding state is unqualified as the injection molding state judgment result, otherwise the injection molding state is qualified as the injection molding state judgment result.

3. The intelligent control system for the injection molding process of a vacuum hose according to claim 2, characterized in that: The statistical injection molding state defect degree includes: The number of bubbles, bubble area, number of cavities and area allowed during injection molding of the target hose are extracted from the information database and recorded as , , and ; Statistics of injection molding defects , , Represents a natural constant.

4. The intelligent control system for the injection molding process of a vacuum hose according to claim 1, characterized in that: The spiral state determination comprises: The number of spiral turns of the steel wire and the outer diameter of the steel wire corresponding to each spiral turn of the steel wire are recorded as and , The number of spiral turns of the wire is numbered. , and then analyze the wire outer diameter fit ; According to the number of spiral turns of the steel wire, the spiral steel wires are grouped into spiral steel wire groups in pairs. According to the distance between the spiral steel wires in each spiral steel wire group, the wire spacing consistency is obtained by analyzing the wire outer diameter consistency in the same way. ; Statistical spiral state consistency , , and They are respectively the set reference wire outer diameter matching and wire spacing matching; like , then the spiral state is unqualified as the spiral state judgment result, otherwise the spiral state is qualified as the spiral state judgment result.

5. The intelligent control system for the injection molding process of a vacuum hose according to claim 4, characterized in that: The analysis of the steel wire outer diameter conformity includes: The standard outer diameter of the steel wire and the permitted outer diameter range of the steel wire when the steel wire of the target hose is embedded are extracted from the information database, and the standard outer diameter of the steel wire is recorded as , and make a difference between the upper limit of the permitted outer diameter range and the standard outer diameter of the steel wire, and take the difference as the standard deviation of the outer diameter of the steel wire, recorded as ; The outer diameter of each spiral wire is subtracted from the outer diameter of the standard wire to obtain the outer diameter difference of each wire. If the outer diameter difference of a certain wire is within the allowable outer diameter difference range, the spiral wire corresponding to the outer diameter difference of the wire is recorded as qualified wire. The number of qualified wires is counted and recorded as ; The maximum outer diameter and the minimum outer diameter are extracted from the outer diameters corresponding to each coil of spiral wire and recorded as and ; Statistics of wire outer diameter fit , , and They are respectively the reference qualified wire outer diameter number ratio and wire outer diameter difference.

6. The intelligent control system for the vacuum hose injection molding process according to claim 1, characterized in that: The step of judging the wire embedding state includes: Extract the standard wire embedding image corresponding to the target hose from the information database, overlap and compare the standard wire embedding image with the image of the hose where the wire has been embedded, and then calculate the degree of coincidence of the wire embedding position ; According to the image of the wire embedded in the hose, the embedding angle of each wire loop is confirmed, and then the consistency of the wire embedding posture is analyzed. ; Statistics of wire embedding state consistency , , and are the influence weights of the set wire embedding position fit and the influence weights of the wire embedding posture fit, respectively. , ; like , then the embedded state is unqualified as the wire embedded state judgment result, otherwise the wire embedded state is qualified as the wire embedded state judgment result.

7. The intelligent control system for the injection molding process of a vacuum hose according to claim 6, characterized in that: The statistical steel wire embedding position fit includes: If the position of a circle of steel wire in the image where the steel wire has been embedded in the hose completely coincides with the position of a circle of steel wire in the standard steel wire embedded image, then the circle of steel wire is recorded as a steel wire circle with qualified position embedding, and the number of steel wire circles with qualified position embedding is counted and recorded as , and extract the number of embedded wire loops from the image where the wire has been embedded in the hose, recorded as ; Statistics of wire embedding position fit , , The ratio of the number of qualified wire rings used as reference is set.

8. The intelligent control system for the vacuum hose injection molding process according to claim 6, characterized in that: The analysis of the consistency of the wire embedding posture includes: According to the image of the steel wire embedded in the hose, the embedding inclination angle of each circle of steel wire is confirmed. Similarly, the embedding inclination angle of the reference steel wire in the standard steel wire embedding image corresponding to the target hose is confirmed, and the embedding inclination angle of each circle of steel wire and the embedding inclination angle of the reference steel wire are recorded as and , The number of the wire embedded in the hose ring. ; Statistics of wire embedding posture consistency , , The inclination difference of the reference wire embedded in the hose is set.

9. The intelligent control system for the vacuum hose injection molding process according to claim 5, characterized in that: The step of confirming the spiral control speed value of the spiral device includes: A1. Extract the fit of spiral outer diameter The matching degree of wire spacing ,like and , judge that the current spiral control mode is the spiral outer diameter control mode, calculate the average outer diameter of each spiral wire corresponding to the spiral wire, and get the average outer diameter value, which is recorded as ,Will , , and Importing a control factor judgment model to output a control factor item, wherein the control factor item is one of a spiral tube speed being too fast and a spiral tube speed being too slow; A2. If the control factor is that the current spiral tube speed is too fast, and The difference is matched with the corresponding spiral speed difference of each control speed value to obtain a matched control speed value, and the difference between the current spiral tube speed and the matched control speed value is used as the spiral control speed value of the spiral device; A3. If the control factor is that the current spiral tube speed is too slow, and The difference is matched with the corresponding spiral speed difference of each control speed value to obtain a matched control speed value, and the sum of the current spiral tube speed and the matched control speed value is used as the spiral control speed value of the spiral device; A4. If and , determine that the current spiral control mode is the spiral pitch control mode, and confirm the spiral control speed value of the spiral device under the spiral pitch control mode in the same way as the confirmation method of the spiral control speed value of the spiral device under the spiral outer diameter control mode; A5. If and , record the current control mode as the comprehensive control mode, and select the maximum value from the spiral control speed value of the spiral device in the spiral outer diameter control mode and the spiral control speed value of the spiral device in the spiral pitch control mode as the spiral control speed value of the spiral device under the comprehensive spiral control mode.

10. The intelligent control system for the injection molding process of a vacuum hose according to claim 7, characterized in that: The step of confirming the embedded control speed value of the spiral device includes: The maximum spacing, minimum spacing and spacing of each circle of steel wire embedded in the hose are extracted from the image of the steel wire embedded in the hose. At the same time, the spacing of each circle of steel wire is averaged to obtain the average spacing. The embedded control speed value of the spiral device is confirmed in the same way as the confirmation method of the spiral control speed value of the spiral device under the spiral pitch control method.

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