CN115256882A

CN115256882A - Injection blow hollow molding control system based on multi-data monitoring

Info

Publication number: CN115256882A
Application number: CN202211170002.6A
Authority: CN
Inventors: 何志斌; 倪爱明
Original assignee: Zhangjiagang Lianxin Plastics Machinery Co ltd
Current assignee: Zhangjiagang Lianxin Plastics Machinery Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2022-11-01
Anticipated expiration: 2042-09-26
Also published as: CN115256882B

Abstract

The invention relates to the technical field of injection-blow molding equipment, in particular to an injection-blow hollow molding control system based on multi-data monitoring, which comprises a temperature-adjusting core module, an injection molding module, a blow molding module, a detection module and a molding control module, wherein the temperature-adjusting core module, the injection molding module, the blow molding module, the detection module and the molding control module are used for cooperatively completing an injection-blow molding process of a molded product.

Description

Injection blow hollow molding control system based on multi-data monitoring

Technical Field

The invention relates to the technical field of injection blow molding equipment, in particular to an injection blow hollow molding control system based on multi-data monitoring.

Background

The injection blow molding process includes the steps of injecting molten plastic into an injection mold by an injection machine to form a pipe blank, molding the pipe blank on a hollow male mold with micropores on the peripheral wall, moving the pipe blank into the blow mold while the pipe blank is hot, closing the mold, introducing compressed air into a pipeline of a core rod to make the parison expand and attach to the cavity wall of the mold, and finally, keeping pressure, cooling and shaping, releasing the compressed air, opening the mold and taking out the plastic part. The injection blow molding is characterized by accurate size, no need of secondary processing of the produced parts, stable weight of the parts, no leftover materials and flash, beautiful and smooth appearance, wherein the process factors influencing the molding by the injection blow molding process mainly comprise temperature, pressure and time, and if the stability of the process parameters cannot be ensured in the injection blow molding process of the products, the quality of the produced products is seriously influenced.

Chinese patent publication no: CN114161684A discloses a medicine bottle processing is with annotating blow hollow forming machine, including the workstation, the upper end of workstation is installed and is injected the organism, the support frame and is annotated blow hollow forming assembly, the upper end of injecting the organism is connected with into the hopper, the discharge end of injecting the organism is connected with the feed end of the hollow forming assembly of annotating blowing, fixed mounting has electrical control cabinet and industrial control computer on the support frame, the outer wall of the hollow forming assembly of annotating blowing is fixed with the cage, the preceding lateral wall of workstation still is fixed with adjustable conveying ejection of compact structure. Therefore, the forming machine can flexibly change the position of discharging, the design is more reasonable, the forming machine is convenient to guide medicine bottles into the medicine bottle collecting barrels at different positions, the processing efficiency of the medicine bottles is improved, the processing parameters existing in the injection-blow hollow forming process are more, the product quality is greatly influenced by actual working temperatures, pressures and time in the production process, and the quality of prepared products can be seriously influenced if deviation occurs in the production process parameters.

Disclosure of Invention

Therefore, the invention provides an injection blow molding control system based on multi-data monitoring, which is used for solving the problem of poor product quality stability caused by incapability of monitoring production process parameters in the prior art.

In order to achieve the above object, the present invention provides an injection blow molding control system based on multiple data monitoring, comprising:

the temperature-adjusting core module is connected with a blowing port of the injection-blowing hollow molding machine and used for heating the parison core rod to a preset injection molding temperature and heating the parison core rod with the pipe parison to a preset blow molding temperature;

the injection molding module is connected with the temperature-regulating core module and is used for introducing molten injection molding raw materials with set temperature and set quality into an injection molding cavity formed by matching the temperature-regulating core and the injection molding mold sleeve so as to prepare a pipe blank;

the blow molding module is connected with the temperature-adjusting core module and is used for blowing gas into a blow molding cavity formed by matching the temperature-adjusting core and the blow molding die sleeve so as to prepare the pipe blank into a molded product;

the detection module is respectively connected with the temperature-adjusting core module, the injection molding module and the blow molding module and is used for detecting processing technological parameters, equipment parameters and raw material parameters in the injection-blow hollow molding process;

and the molding control module is respectively connected with the temperature-adjusting core module, the injection molding module, the blow molding module and the detection module, and is used for judging the corresponding processing process conditions according to the detected processing process parameters in the injection-blow hollow molding process, correspondingly adjusting the subsequent processing process parameters, and adjusting the preset blow molding blowing pressure and the preset injection molding preparation temperature of the system according to the material thickness of the prepared molded product so as to enable the size of the molded product prepared by injection-blow hollow molding to meet the standard.

Further, the detection module is configured to detect a temperature of each position of the parison core rod, a raw material temperature in the injection raw material barrel, an injection temperature of an injection raw material discharge port, a duration of injection pressure maintaining, an actual temperature of the parison on the parison core rod, a blowing pressure, a blowing preparation temperature of the parison core rod for heating the inner layer, a duration of injection preparation heating of the parison core rod, and a material thickness of a preset position of a product.

Further, the molding control module is used for determining whether the parison core rod completes injection molding preparation and determining injection raw material injection temperature and injection pressure maintaining time according to the detected actual temperature value of the parison core rod, determining the blow molding preparation temperature and blow molding blowing pressure of the heating inner layer of the parison core rod according to the actual temperature of the pipe blank prepared by injection molding, determining whether the working efficiency of heating work is qualified according to the heating time used by the parison core rod to complete injection molding preparation, and adjusting the blow molding blowing pressure preset by the system and the preset injection preparation temperature according to the material thickness of the prepared molded product.

Further, the temperature-regulating mandrel module comprises a plurality of parison mandrels and mandrel heating modules, wherein,

for a single parison core rod, the single parison core rod is connected with the blowing port and is used as an injection molding inner die sleeve of the tube blank to be matched with the injection molding die sleeve to form a tube blank injection molding die cavity, and a heating inner layer is arranged in the parison core rod and is used for heating the parison core rod to a set temperature;

the mandrel heating module is connected with the single parison mandrel and used for heating through the mandrel heating module to adjust the temperature of the corresponding position on the parison mandrel to a preset value.

Further, the forming control module controls the core rod heating module to heat the parison core rod and determines whether the parison core rod completes injection preparation according to the difference value delta TI between the temperature TI of any position of the parison core rod detected by the detection module and the corresponding preset heating temperature standard TI, the forming control module is provided with a parison core rod temperature difference standard delta T, wherein the delta T is more than 0 and less than 5 ℃, the difference value delta TI = TI-TI between TI and TI is set,

when the delta ti is less than or equal to delta T, the forming control module judges that the temperature difference meets the standard and the parison core rod finishes injection preparation, and controls the blowing nozzle to clamp the parison core rod and the injection mold sleeve which finishes injection preparation to mold so as to inject a pipe blank;

when delta ti is larger than delta T, the forming control module determines that the temperature difference does not meet the standard and the parison core rod is not prepared for injection molding, and the forming control module controls the core rod heating module to continue heating the parison core rod so that the temperature of the parison core rod meets the temperature difference standard.

Further, the forming control module determines an adjusting mode for the injection molding raw material injection temperature and the injection molding pressure maintaining time according to the average temperature TA of the parison core rod detected by the detection module, and is provided with a first parison core rod average temperature standard TA1, a second parison core rod average temperature standard TA2, a first raw material temperature adjusting coefficient alpha 1, a second raw material temperature adjusting coefficient alpha 2 and a third raw material temperature adjusting coefficient alpha 3, wherein TA1 is more than TA2,1 is more than alpha 1 and less than 1.3 is more than alpha 2 and less than alpha 3,

when TA is less than TA1, the molding control module judges that the core rod temperature of the parison is lower than a standard, and adjusts the injection temperature of the injection molding raw material and the injection molding pressure maintaining time length by adopting a first raw material temperature adjusting coefficient alpha 1, the molding control module adjusts the injection temperature of the injection molding raw material to tb, adjusts the injection molding pressure maintaining time length to hb, and sets tb = tb0 x alpha 1 and hb = hb0 x alpha 1, wherein tb0 is a preset injection molding preparation temperature of the injection molding raw material, and tb0 is a preset injection molding pressure maintaining time length;

when TA1 is more than or equal to TA and is less than or equal to TA2, the forming control module judges that the core rod temperature of the parison meets the standard, and adjusts the injection temperature of the injection molding raw material and the injection molding pressure maintaining time length by adopting a second raw material temperature adjusting coefficient alpha 2, wherein tb = tb0 x alpha 2, hb = hb0 x alpha 2;

when TA is more than TA2, the molding control module judges that the temperature of the parison core rod is higher than a standard, adjusts the injection temperature of the injection molding raw material and the injection pressure maintaining time length by adopting a third raw material temperature adjusting coefficient alpha 3, and sets tb = tb0 × alpha 3 and hb = hb0 × alpha 3.

Furthermore, the forming control module determines the blow-molding preparation temperature and the blow-molding blowing pressure of the heating inner layer of the parison core rod according to the difference value delta TC between the actual temperature TC and tb of the tube blank formed on the parison core rod detected by the detection module, the forming control module is provided with a first tube blank temperature difference standard delta TC1, a second tube blank temperature difference standard delta TC2, a first parison core rod heat-preservation regulating coefficient beta 1 and a second parison core rod heat-preservation regulating coefficient beta 2, wherein delta TC1 is more than 0 and less than delta TC2, beta 1 is more than 0.7 and less than 1 and less than beta 2 and less than 1.6, the difference value delta TC = tb-TC between TC and tb is set,

when the delta TC is less than or equal to the delta TC1, the forming control module determines that the temperature difference of the pipe blank is low, the blow molding preparation temperature and the blow molding blowing pressure are adjusted by adopting a first blank core rod heat preservation adjustment coefficient beta 1, the forming control module marks the blow molding preparation temperature of the adjusted blank core rod as td and the blow molding blowing pressure as pd, and td = td0 x β 1, pd =pd0x (2- β 1) is set, wherein td0 is the blow molding preparation temperature of the preset blank core rod, pd0 is the preset blow molding blowing pressure, and 0.5tb is more than td0 and is more than tb;

when delta TC1 is more than delta TC and less than delta TC2, the forming control module determines that the temperature difference of the pipe blank meets the standard, the blow-molding preparation temperature and the blow-molding blowing pressure do not need to be adjusted, and td = td0 and pd = pd0 are set;

when the delta TC is larger than or equal to the delta TC2, the forming control module judges that the temperature difference of the tube blank is higher than the standard, adjusts the blow molding preparation temperature and the blow molding blowing pressure by adopting a second blank core rod heat preservation adjustment coefficient beta 2, and sets td = td0 x beta 2 and pd = pd0 x beta 2.

Further, the forming control module calculates the average heating time ht of the single core rod heating module on the core rod of the parison according to the heating time of any parison core rod by the single core rod heating module detected by the detection module and compares the ht with the single-process time standard of the core rod heating module to determine whether the working efficiency of the single core rod heating module is qualified, when the working efficiency of the core rod heating module is determined to be unqualified, the forming control module calculates the actual working efficiency ratio E according to the ht and the H0 and compares the E with the preset working efficiency ratio E0 to determine the poor working state of the core rod heating module equipment, the forming control module is provided with the single-process time standard H0 of the core rod heating module and the preset working efficiency ratio E0, wherein the H0 is more than 0, the E0 is more than 1 and less than 2.5, the actual working efficiency ratio E = ht/H0 is set,

when ht is less than or equal to H0, the forming control module judges that the working efficiency of the mandrel heating module is qualified;

when ht is more than H0, the forming control module judges that the working efficiency of the mandrel heating module is unqualified,

if E is less than or equal to E0, the forming control module judges that the heating efficiency of the core rod heating module equipment meets the low-efficiency standard and the core rod heating module is aged;

if E is larger than E0, the forming control module judges that the heating efficiency of the core rod heating module equipment exceeds the low-efficiency standard and the heating of the core rod heating module is invalid, and the forming control module moves out the core rod heating module for maintenance or replacement.

Further, the forming control module calculates a comparison result between the material thickness variation delta R and a preset product material thickness difference value standard delta R0 according to the maximum value and the minimum value in the material thickness data of the preset position of the formed product detected by the detection module to determine whether the preset blow molding blow pressure in the blow molding process meets the standard or not, the forming control module is provided with a preset product standard material thickness R0 and a preset product material thickness difference value standard delta R0, wherein delta R0 is more than 0 and less than R0,

when delta R is less than or equal to delta R0, the forming control module judges that the material thickness change meets the standard and the preset blow molding blow air pressure meets the standard, and the forming control module does not need to adjust the preset blow molding blow air pressure;

when delta R is larger than delta R0, the forming control module judges that the material thickness change does not meet the standard and the preset blow molding blow air pressure does not meet the standard, and the forming control module adjusts the preset blow molding blow air pressure according to the delta R.

Further, the forming control module determines an adjustment amount aiming at the preset blow molding blow air pressure according to the delta R, and is provided with a first material thickness deviation reference standard delta R1, a second material thickness deviation reference standard delta R2, a first pressure regulating coefficient omega 1, a second pressure regulating coefficient omega 2 and a third pressure regulating coefficient omega 3, wherein delta R0 is more than delta R1 and less than delta R2,1 is more than omega 1 and less than omega 2 and less than omega 3,

when the delta R is not more than the delta R1, the forming control module judges that the material thickness deviation meets a first adjusting standard, and the forming control module adjusts the preset blow molding blow pressure to pd0', and sets pd0' = pd0 multiplied by omega 1;

when the delta R1 is larger than the delta R and is not larger than the delta R2, the forming control module judges that the material thickness deviation meets a second adjusting standard, and the forming control module adjusts the preset blow molding blowing pressure to pd0', and sets pd0' = pd0 multiplied by omega 2;

and when the delta R is larger than the delta R1, the forming control module judges that the material thickness deviation meets a third adjusting standard, and the forming control module adjusts the preset blow molding blowing pressure to pd0', and sets pd0' = pd0 multiplied by omega 3.

Further, the molding control module determines whether blow molding pressure adjustment can be realized according to the comparison result of the adjusted preset blow molding blow pressure value pd0' and the blow molding pressure threshold value, the molding control module is provided with a blow molding pressure threshold value PDmax,

when pd0 'is less than or equal to PDmax, the molding control module judges that blow molding pressure adjustment can be realized and adjusts the preset blow molding blow pressure to pd0';

when pd0' is greater than PDmax, the molding control module judges that the blow molding pressure adjustment cannot be realized, the molding control module adjusts the preset blow molding blow pressure to PDmax and adjusts the preset injection molding preparation temperature of the injection molding raw material to tb0 multiplied by mu, wherein mu is a related injection molding temperature adjustment coefficient, and 1 & ltmu & lt 1.2.

Further, still include execution manipulator module, its respectively with the temperature regulating core module the module of moulding plastics the blow molding module the detection module and the shaping control module links to each other, be used for with the parison plug with the blowing mouth is connected and will be connected with the blowing mouth of parison plug with mould cover or blow molding die cover compound die are in order to prepare the shaping product.

Compared with the prior art, the injection-blow molding process of the molded product is completed by the cooperation of the temperature-adjusting core module, the injection molding module, the blow molding module, the detection module and the molding control module, corresponding process parameters and process parameters are monitored in real time in each process link of the molding process, and subsequent process parameters are correspondingly adjusted, so that the injection-blow hollow molding control system based on multi-data monitoring can effectively ensure that the process adjustment can be performed according to the actual equipment state and product state so as to adjust the molding size of the product to be within a standard range, and the molded product prepared by the system has good quality stability.

Furthermore, the temperature-adjusting mandrel module is provided with a plurality of parison mandrels and a plurality of mandrel heating modules, the mandrel heating modules are used for adjusting the temperatures of the corresponding positions of the parison mandrels to preset values through heating, the temperature of the parison mandrels can be effectively adjusted to a temperature suitable for blow molding after injection molding of an injection molding machine before injection molding, and the mandrel heating modules for heating different positions to corresponding temperatures can effectively ensure that injection blow molded products with complex shapes can be formed through blow molding, so that the application field of the invention is further expanded.

Furthermore, the forming control module is provided with a parison core rod temperature difference standard delta T which is used as a reference index for judging whether the parison core rod completes injection preparation or not, the temperature TI at any position of the parison core rod is compared with a corresponding preset heating temperature standard TI, and whether the parison core rod completes injection preparation or not is determined according to the difference delta TI between TI and TI, so that the temperature consistency of an injection mold during injection can be ensured by effectively adjusting the actual temperature of the parison core rod to be within a preset heating temperature range before injection, and the temperature consistency of the injection mold during injection can be ensured by effectively detecting the temperature of the parison core rod, thereby ensuring the consistency of the prepared tube blank.

Furthermore, the forming control module is provided with a first blank core rod average temperature standard TA1, a second blank core rod average temperature standard TA2, a first raw material temperature regulating coefficient alpha 1, a second raw material temperature regulating coefficient alpha 2 and a third raw material temperature regulating coefficient alpha 3, and the forming control module determines a regulating mode aiming at the injection raw material injection temperature and the injection pressure maintaining time length according to the average temperature TA of the blank core rod.

Furthermore, the forming control module is provided with a first pipe blank temperature difference standard delta TC1, a second pipe blank temperature difference standard delta TC2, a first parison core heat preservation adjustment coefficient beta 1 and a second parison core heat preservation adjustment coefficient beta 2, the forming control module determines the blow-molding preparation temperature and the blow-molding blowing pressure of the heating inner layer of the parison core rod according to delta TC, the difference between the actual temperature TC of the pipe blank and the injection temperature of the injection raw material shows the cooling range of the pipe blank after injection molding is completed, the pipe blank needs to be subjected to plastic deformation through the blowing pressure during blow molding to be attached to the inner surface of a blow mold sleeve to form a formed product, the blow-molding preparation temperature of the heating inner layer of the parison core rod can be used for blow molding the pipe blank to keep the temperature of the corresponding blow molding temperature, the blow molding temperature is too high, the pipe blank is accumulated to the lower part before being blown to cause the material shortage of the blow molding product, the blow molding temperature is too low, the product is not blown to the preset size after the blow molding deformation force is large, the inner layer heating temperature of the parison core rod is adjusted, and the effective stability of the blow molding temperature of the pipe blank and the blow molding pressure of the blow molding product is further guaranteed.

Furthermore, the forming control module is provided with a mandrel heating module single-process time standard H0 and a preset working efficiency ratio E0, the forming control module compares ht with H0 to determine whether the working efficiency of a single mandrel heating module is qualified or not and determines the poor working state of the mandrel heating module equipment according to the ratio E of ht to H0 when the working efficiency is unqualified, the working efficiency of the mandrel heating module is effectively judged by monitoring the heating duration of the single mandrel heating module to screen the mandrel heating modules which do not accord with the working efficiency, the system can be ensured to efficiently operate by detecting the supply and demand durations of single stations, and therefore the working time for preparing formed products has stability.

Furthermore, the forming control module is provided with a preset product standard material thickness R0 and a preset product material thickness difference value standard delta R0, the forming control module compares the delta R with the delta R0 to determine whether the preset blow molding blowing pressure in the blow molding process is proper or not, whether the blow molding process parameters in the blow molding process can prepare qualified products or not can be judged by detecting the material thickness of the corresponding position of the formed product, if the material thickness of the corresponding position of the prepared formed product is not qualified, the blow molding process parameters are set unreasonably in a reverse pushing mode, the pipe blank extension situation in the blow molding process can be reflected through the material thickness, the pipe blank extension accords with the material thickness uniformity degree through adjusting the blow molding blowing pressure, and the stability of the product quality can be further ensured through adjusting the preset process parameters.

Further, the forming control module is provided with a first material thickness deviation reference standard delta R1, a second material thickness deviation reference standard delta R2, a first pressure regulating coefficient omega 1, a second pressure regulating coefficient omega 2 and a third pressure regulating coefficient omega 3, when the forming control module judges that the material thickness change does not meet the standard and the preset blow molding blow pressure is inappropriate, the forming control module determines an adjusting mode aiming at the preset blow molding blow pressure according to delta R, the pipe blank extension condition in blow molding can be reflected through the deviation amount of the material thickness, the blow molding pressure value can adjust the extension condition of the pipe blank, therefore, the material thickness of a product prepared by adopting the blow molding blow pressure value can be effectively adjusted through the material thickness change, and the stability of the product quality can be further effectively ensured through adjusting the preset process parameters.

Furthermore, the forming control module of the present invention is provided with a blowing pressure threshold PDmax, when the forming control module determines that the preset blowing pressure needs to be adjusted to pd0', the forming control module compares pd0' with PDmax to determine whether the blowing pressure adjustment can be achieved, and the device has a use limit, when the size of the product after being formed cannot be adjusted by a single parameter, the size after being blow-formed can also be adjusted by adjusting the temperature of the tube blank associated with the tube blank extension condition in the blowing process, and at this time, the temperature of the tube blank is mainly affected by the injection temperature of the raw material during injection, so that the actual temperature of the tube blank before the tube blank corresponding to the preset injection preparation temperature of the injection raw material is adjusted to tb0 × μ by adjusting the preset injection preparation temperature of the injection raw material to be adjusted to tb0 × μ, which can affect the tube blank extension condition in the blowing process, and further ensure that the system of the present invention can ensure the stability of the product quality by adjusting the preset process parameters.

Furthermore, the system also comprises an execution manipulator module which is used for connecting the parison core rod with the blowing port, matching the blowing port connected with the parison core rod with the injection mold sleeve or the blow mold sleeve to prepare a molded product, and finishing the action linkage of the temperature-adjusting core module, the injection mold module, the blow mold module and the detection module in the product preparation process through a mechanical arm, so that the working efficiency of the system can be expanded, and the flexibility and the maneuverability of each process can be improved.

Drawings

FIG. 1 is a schematic structural diagram of an injection blow molding hollow molding control system based on multiple data monitoring according to an embodiment of the present invention;

FIG. 2 is a block diagram of an injection blow molding control system based on multi-data monitoring according to the present invention;

fig. 3 is a schematic structural diagram of a temperature-adjustable core module according to an embodiment of the invention.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in conjunction with the following examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 and fig. 2, wherein fig. 1 is a schematic structural diagram of an injection-blow hollow molding control system based on multiple data monitoring according to an embodiment of the present invention, and fig. 2 is a block diagram of the injection-blow hollow molding control system based on multiple data monitoring according to the present invention, the present invention provides an injection-blow hollow molding control system based on multiple data monitoring, including:

the temperature-adjusting core module 1 is connected with a blowing port 31 of the injection-blow hollow molding machine and used for heating the parison core rod to a preset injection molding temperature and heating the parison core rod with the pipe parison to a preset blow molding temperature;

the injection molding module 2 is connected with the temperature-regulating core module 1 and is used for preparing a pipe blank by introducing a molten injection molding raw material with set temperature and set quality into an injection molding cavity formed by matching the temperature-regulating core and the injection molding mold sleeve;

the blow molding module 3 is connected with the temperature-adjusting core module 1 and is used for introducing gas with set pressure and temperature into a blow molding cavity formed by matching the temperature-adjusting core and a blow molding sleeve so as to prepare the pipe blank into a molded product;

a detection module (not shown in the figure) which is respectively connected with the temperature-adjusting core module 1, the injection module 2 and the blow molding module 3 and is used for detecting processing technological parameters, equipment parameters and raw material parameters in the injection-blow hollow molding process;

and the molding control module (not shown in the figure) is respectively connected with the temperature-adjusting core module 1, the injection molding module 2, the blow molding module 3 and the detection module, and is used for judging the corresponding processing process conditions according to the detected processing process parameters in the injection-blow hollow molding process, correspondingly adjusting the subsequent processing process parameters, and adjusting the preset blow molding blowing pressure of the system and the preset injection molding preparation temperature according to the material thickness of the prepared molded product so as to enable the size of the molded product prepared by the injection-blow hollow molding to meet the standard.

Specifically, the detection module is used for detecting the temperature of each position of the parison core rod, the raw material temperature in the injection raw material barrel, the injection temperature of an injection raw material discharge port, the injection pressure maintaining time, the actual temperature of the pipe blank on the parison core rod, the blow molding blowing pressure, the blow molding preparation temperature of the parison core rod heating inner layer, the injection preparation heating time of the parison core rod and the material thickness of a preset position of a product;

the forming control module is used for determining whether the parison core rod completes injection preparation or not and determining injection raw material injection temperature and injection pressure maintaining time length according to the detected actual temperature value of the parison core rod, determining the blow molding preparation temperature and blow molding blowing pressure of the heating inner layer of the parison core rod according to the actual temperature of the pipe blank prepared by injection, determining whether the working efficiency of heating work is qualified or not according to the heating time length for the parison core rod to complete injection preparation, and adjusting the blow molding blowing pressure preset by the system and the preset injection preparation temperature according to the material thickness of the prepared formed product.

According to the injection-blow molding process, the injection-blow molding process of the molded product is completed by the cooperation of the temperature-adjusting core module, the injection molding module, the blow molding module, the detection module and the molding control module, corresponding process parameters and process parameters are monitored in real time in each process link of the molding process, and subsequent process parameters are correspondingly adjusted, so that the injection-blow hollow molding control system based on multi-data monitoring can effectively ensure that the process adjustment can be performed according to the actual equipment state and product state so as to adjust the molding size of the product to be within a standard range, and the molded product prepared by the system has good quality stability.

Referring to fig. 3, wherein fig. 3 is a schematic structural diagram of a temperature-adjusting mandrel module according to an embodiment of the present invention, the temperature-adjusting mandrel module includes a plurality of parison mandrels 11 and a mandrel heating module 12, wherein,

for a single parison core rod 11, the parison core rod is connected with the blowing port and used as an injection inner mold sleeve of the tube blank to be matched with the injection mold sleeve to form a tube blank injection mold cavity, and a heating inner layer 111 is arranged in the parison core rod 11 and used for heating the parison core rod to a set temperature;

the mandrel heating module 12 is connected to a single preform mandrel 11, and configured to heat through the heating wall 121 of the mandrel heating module 12 to adjust the temperature of the corresponding position on the preform mandrel 11 to a preset value, wherein the heating temperature of each position on the heating wall 121 of the mandrel heating module 12 can be set to different temperatures as required to adjust the temperature of the corresponding position on the preform mandrel 11 to the corresponding temperature.

The temperature-adjusting core module is provided with a plurality of parison core rods and a plurality of core rod heating modules, the core rod heating modules are used for adjusting the temperature of the corresponding positions of the parison core rods to a preset value through heating, the temperature of the parison core rods can be effectively adjusted to the temperature suitable for blow molding after injection molding of an injection molding machine before injection molding, the core rod heating modules for heating different parts to the corresponding temperatures are arranged, the injection blow molded products with complex shapes can be effectively formed through blow molding, the application field of the invention is further expanded, meanwhile, the temperature of the parison core rods can be increased through the core rod heating modules in an external heating mode, on one hand, the temperature of the corresponding positions of the parison core rods can be adjusted to a preset value through adjusting the temperatures of the different positions of the core rod heating modules, on the other hand, the primary heating function is moved out from the inside of the parison core rods, and only the heat preservation function is kept inside the parison core rods, the design size of the parison core rods can be greatly reduced, and the sizes of the molded products which can be manufactured by the parison core rods are richer.

Specifically, the forming control module is provided with a parison core rod temperature difference standard delta T, wherein delta T is more than 0 and less than 5 ℃, the forming control module controls the core rod heating module to heat the parison core rod, the forming control module compares the temperature TI of any position of the parison core rod detected by the detection module with the corresponding preset heating temperature standard TI thereof and determines whether the parison core rod completes injection preparation or not according to the difference delta TI between TI and TI, and delta TI = TI-TI is set,

The forming control module is provided with a parison core rod temperature difference standard delta T which is used as a reference index for judging whether the parison core rod finishes injection preparation or not, the temperature TI of any position of the parison core rod is compared with a corresponding preset heating temperature standard TI, and whether the parison core rod finishes injection preparation or not is determined according to the difference delta TI between TI and TI, so that the temperature consistency of an injection mold during injection can be ensured by effectively adjusting the actual temperature of the parison core rod to be within a preset heating temperature range before injection, and the temperature consistency of the injection mold during injection can be ensured by effectively detecting the temperature of the parison core rod by the system disclosed by the invention, thereby ensuring the consistency of the prepared pipe blank.

Specifically, the forming control module is provided with a first parison core rod average temperature standard TA1, a second parison core rod average temperature standard TA2, a first raw material temperature regulating coefficient alpha 1, a second raw material temperature regulating coefficient alpha 2 and a third raw material temperature regulating coefficient alpha 3, wherein TA1 is more than TA2,1 is more than alpha 1 and more than 1.3 is more than alpha 2 and less than alpha 3, when the parison core rod and the injection mold are sleeved and matched, the forming control module determines a regulating mode aiming at the injection molding raw material injection temperature and the injection molding pressure maintaining time length according to the average temperature TA of the parison core rod detected by the detection module,

when TA is less than TA1, the molding control module judges that the temperature of the parison core rod is lower than the standard, and adjusts the injection molding raw material injection temperature and the injection molding pressure maintaining time length by adopting a first raw material temperature adjusting coefficient alpha 1, the molding control module adjusts the injection molding raw material injection temperature to tb, adjusts the injection molding pressure maintaining time length to hb, and sets tb = tb0 × alpha 1 and hb = hb0 × alpha 1, wherein tb0 is a preset injection molding preparation temperature of the injection molding raw material, and tb0 is a preset injection molding pressure maintaining time length;

The forming control module is provided with a first parison core rod average temperature standard TA1, a second parison core rod average temperature standard TA2, a first raw material temperature regulating coefficient alpha 1, a second raw material temperature regulating coefficient alpha 2 and a third raw material temperature regulating coefficient alpha 3, and the forming control module determines a regulating mode aiming at the injection molding raw material injection temperature and the injection molding pressure maintaining time length according to the average temperature TA of the parison core rod.

Specifically, the forming control module is provided with a first pipe blank temperature difference standard delta TC1, a second pipe blank temperature difference standard delta TC2, a first parison core rod heat preservation regulating coefficient beta 1 and a second parison core rod heat preservation regulating coefficient beta 2, wherein delta TC1 is more than 0 and less than delta TC2, beta 1 is more than 0.7 and less than beta 1 and less than beta 2 and less than 1.6, after the injection and pressure maintaining are completed, the forming control module controls the injection mold sleeve to be separated from the parison core rod, the forming control module controls the detection module to detect the actual temperature TC of the pipe blank formed on the parison core rod, determines the blow molding preparation temperature and the blow molding blowing pressure of the heating inner layer of the parison core rod according to the difference delta TC between TC and tb, and sets delta TC = tb-tb,

when delta TC is less than or equal to delta TC1, the forming control module judges that the temperature difference of the pipe blank is low, the blow molding preparation temperature and the blow molding blowing pressure are adjusted by adopting a first blank core rod heat preservation adjustment coefficient beta 1, the forming control module marks the blow molding preparation temperature of the adjusted blank core rod as td and the blow molding blowing pressure after adjustment as pd, and td = td0 x beta 1, pd =pd0x (2-beta 1) is set, wherein td0 is the blow molding preparation temperature of the preset blank core rod, pd0 is the preset blow molding blowing pressure, and 0.5tb is more than td0 and less than tb;

when delta TC1 is larger than delta TC and smaller than delta TC2, the forming control module judges that the temperature difference of the pipe blank meets the standard, the blow molding preparation temperature and the blow molding blowing pressure do not need to be adjusted, and td = td0 and pd = pd0 are set;

The forming control module is provided with a first pipe blank temperature difference standard delta TC1, a second pipe blank temperature difference standard delta TC2, a first parison core rod heat preservation regulating coefficient beta 1 and a second parison core rod heat preservation regulating coefficient beta 2, the forming control module determines the blow molding preparation temperature and the blow molding blowing pressure of the heating inner layer of the parison core rod according to delta TC, the difference value of the actual temperature TC of the pipe blank and the injection temperature of the injection raw material reflects the cooling range of the pipe blank after the injection molding is finished, and the pipe blank is subjected to plastic deformation and is attached to the inner surface of a blow molding mold sleeve to form a formed product through the blow molding pressure during the blow molding, the blow molding preparation temperature of the parison core rod heating inner layer is determined according to delta TC, the tube parison can be kept warm to the corresponding blow molding temperature for blow molding, the blow molding temperature is too high, the tube parison can be accumulated to the lower part before blow molding of a blow molded product, the upper part of the blow molded product is short of material, the blow molding temperature is too low, the blow molding deformation force is large, and the product is not blown to the preset size to cause insufficient blow molding, so that the temperature of the tube parison is adjusted through the inner layer heating of the parison core rod, the blow molding temperature of the tube parison is ensured to be consistent with the blow molding pressure and the actual temperature of the tube parison during blow molding, and the size stability of the blow molded product is further effectively ensured.

Specifically, the forming control module is provided with a mandrel heating module single-process time standard H0 and a preset working efficiency ratio E0, wherein H0 is more than 0, E0 is more than 1 and less than 2.5, when the forming control module controls the mandrel heating module to heat the parison mandrel, the forming control module controls the detection module to record the heating time hi of a single mandrel heating module on any parison mandrel and calculate the average heating time ht of the single mandrel heating module on the parison mandrel, the forming control module compares the ht with the H0 to determine whether the working efficiency of the single mandrel heating module is qualified or not,

when ht is greater than H0, the forming control module judges that the working efficiency of the mandrel heating module is unqualified, the forming control module determines the poor working state of the mandrel heating module equipment according to the ratio e of ht to H0, and sets e = ht/H0;

The forming control module is provided with a single-process time standard H0 of the mandrel heating module and a preset working efficiency ratio E0, the forming control module compares ht with H0 to determine whether the working efficiency of the single mandrel heating module is qualified or not and determines the poor working state of the mandrel heating module equipment according to the ratio E of ht to H0 when the working efficiency is unqualified, the working efficiency of the mandrel heating module is effectively judged by monitoring the heating duration of the single mandrel heating module to screen the mandrel heating modules which do not accord with the working efficiency, and the system can be ensured to be operated efficiently by detecting the supply and demand duration of a single station, so that the working time for preparing a formed product has stability.

Specifically, the forming control module is provided with a preset product standard material thickness R0 and a preset product material thickness difference value standard delta R0, wherein delta R0 is more than 0 and less than R0, after the pipe blank is prepared into a formed product through blow molding, the forming control module controls the detection module to detect the material thickness of a preset position of the formed product and calculate the material thickness variation delta R according to the maximum value and the minimum value in the detected product material thickness data, the forming control module compares the delta R with the delta R0 to determine whether the preset blow molding blow pressure in the blow molding process meets the standard or not,

when the delta R is less than or equal to the delta R0, the forming control module judges that the material thickness change meets the standard and the preset blow molding blow pressure meets the standard, and the forming control module does not need to adjust the preset blow molding blow pressure;

The forming control module is provided with a preset product standard material thickness R0 and a preset product material thickness difference value standard delta R0, the forming control module compares the delta R with the delta R0 to determine whether the preset blow molding blowing pressure in the blow molding process is proper or not, whether the qualified product can be prepared by the blow molding process parameters in the blow molding process can be judged by detecting the material thickness of the corresponding position of the formed product, if the material thickness of the corresponding position of the prepared formed product is unqualified, the blow molding process parameters are set unreasonably in a reverse pushing mode, the pipe blank extension condition in the blow molding process can be reflected through the material thickness, the pipe blank extension meets the material thickness uniformity degree through adjusting the blow molding blowing pressure, and the stability of the product quality can be further guaranteed through adjusting the preset process parameters.

Specifically, the forming control module is provided with a first material thickness deviation reference standard delta R1, a second material thickness deviation reference standard delta R2, a first pressure regulating coefficient omega 1, a second pressure regulating coefficient omega 2 and a third pressure regulating coefficient omega 3, wherein delta R0 is more than delta R1 and less than delta R2,1 is more than 1 and less than omega 2 and less than omega 3, when the forming control module judges that the material thickness change does not accord with the standard and the preset blow molding blow air pressure is not proper, the forming control module determines an adjusting mode aiming at the preset blow molding blow air pressure according to delta R,

and when the delta R is larger than the delta R1, the forming control module judges that the stock thickness deviation meets a third adjusting standard, and the forming control module adjusts the preset blow molding blow pressure to pd0', and sets pd0' = pd0 multiplied by omega 3.

The forming control module is provided with a first material thickness deviation reference standard delta R1, a second material thickness deviation reference standard delta R2, a first pressure regulating coefficient omega 1, a second pressure regulating coefficient omega 2 and a third pressure regulating coefficient omega 3, when the forming control module judges that the material thickness variation does not meet the standard and the preset blow molding blow pressure is improper, the forming control module determines an adjusting mode aiming at the preset blow molding blow pressure according to delta R, the pipe blank extension condition in blow molding can be reflected through the deviation amount of the material thickness, the blow molding pressure value can adjust the extension condition of the pipe blank, therefore, the material thickness of a product prepared by adopting the blow molding blow pressure value can be effectively adjusted through the adjustment of the blow molding blow pressure value through the material thickness variation, and the stability of the product quality can be further effectively guaranteed through the adjustment of preset process parameters.

Specifically, the molding control module is provided with a blowing pressure threshold PDmax, when the molding control module determines that the preset blowing pressure needs to be adjusted to pd0', the molding control module compares pd0' with PDmax to determine whether the blowing pressure adjustment can be achieved,

The forming control module is provided with a blowing pressure threshold value PDmax, when the forming control module judges that the preset blowing pressure needs to be adjusted to pd0', the forming control module compares pd0' with PDmax to determine whether the blowing pressure adjustment can be realized, the equipment has a use limit value, when the size of the product after forming cannot be adjusted through a single parameter, the size after blow forming can also be adjusted by adjusting the temperature of the tube blank associated with the tube blank extension condition in the blow forming process, and at the moment, the temperature of the tube blank is mainly influenced by the injection temperature of the raw material during injection, so that the actual temperature of the tube blank before blow forming of the tube blank is correspondingly improved by adjusting the preset injection preparation temperature of the injection raw material to tb0 multiplied by mu, and the tube blank extension condition in the blow forming process can be influenced, and the stability of the product quality can be ensured by adjusting the preset process parameters.

Particularly, still include execution manipulator module, its respectively with the temperature regulating core module the module of moulding plastics the blow molding module the detection module and the shaping control module links to each other, be used for with the parison plug with the blowing mouth is connected and will be connected with the blowing mouth of parison plug with mould cover or blow molding die cover compound die are in order to prepare the shaping product.

The system also comprises an execution manipulator module which is used for connecting the parison mandril with the blowing port, combining the blowing port connected with the parison mandril with the injection mold sleeve or the blow mold sleeve to prepare a molded product, and finishing the action connection of the temperature-regulating core module, the injection mold module, the blow mold module and the detection module in the product preparation process through a manipulator, so that the working efficiency of the system can be expanded, and the flexibility and the maneuverability of each process can be improved.

Example 1:

in the embodiment, the food-grade beverage bottle is prepared by using the injection molding raw materials of 80 parts of food-grade polypropylene resin, 15 parts of food-grade high-density polyethylene and 5 parts of color master batch; in the embodiment, an injection-blow hollow molding control system based on multi-data monitoring is provided with 8 blowing ports connected with parison core rods, a temperature-adjusting parison core module is provided with 200 parison core rods and 40 sleeve core rod heating modules for continuous production, and the system can prepare 8 molded products;

the molding control module is provided with:

the mixing temperature of the injection molding raw materials is 180 ℃;

the injection amount of the raw materials is 240g;

presetting injection molding pressure maintaining pressure of 120MPa;

presetting injection pressure of 70MPa;

the temperature difference standard delta T of the parison core rod is =3 ℃;

the average temperature standard of the first parison core rod is TA1=100 ℃;

the average temperature standard of the second type embryonic core rod is TA2=120 ℃;

a first raw material temperature adjustment coefficient α 1=1.1;

the second raw material temperature adjustment coefficient α 2=1.4;

the third material temperature adjustment coefficient α 3=1.6;

tb0 is the preset injection preparation temperature =200 ℃ of the injection raw material;

tb0 is preset injection molding pressure maintaining time =5 seconds;

the blow molding time is 8 seconds;

the exhaust time is 1.5 seconds;

presetting blow molding blowing pressure of 8MPa;

a first pipe blank temperature difference standard delta TC1=10 ℃;

a second tube blank temperature difference standard delta TC2=20 ℃;

the heat preservation regulating coefficient beta 1 of the first parison core rod is not less than 0.85;

the heat preservation regulating coefficient beta 2 of the second type embryo core rod is not less than 1.3;

the time standard H0=2min of the single procedure of the core rod heating module;

presetting a working efficiency ratio E0=2;

presetting a product standard material thickness R0=0.18mm;

presetting a standard delta R0=0.15mm for the thickness difference of the product;

the first stock thickness deviation is referenced to standard Δ R1=0.1mm;

the second stock thickness deviation is referenced to standard Δ R2=0.25mm;

a first voltage regulation coefficient ω 1=1.2;

a second regulation coefficient ω 2=1.5;

a third regulation coefficient ω 3=1.7;

blow pressure threshold PDmax =30MPa;

the associated injection temperature adjustment coefficient μ =1.15.

Example 2:

this embodiment is based on embodiment 1, and can realize a single injection molding function or blow molding function by using only the injection mold sleeve or only the blow mold sleeve, thereby facilitating flexible application of the system.

Example 3:

in this embodiment, on the basis of embodiment 1, the parison core rods with different shapes and the corresponding core rod heating modules are arranged, so that different products can be produced simultaneously, the working flexibility of the system of the present invention is improved, the parison core rods are flexibly arranged, the working efficiency of the system is ensured, the system is under a higher working load, and the use cost is reduced.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is apparent to those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can be within the protection scope of the invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an annotate and blow cavity shaping control system based on multidata monitoring which characterized in that includes:

the temperature-adjusting core module is connected with a blowing port of the injection-blowing hollow forming machine and used for heating the parison core rod to a preset injection molding temperature and heating the parison core rod with the pipe parison to a preset blow molding temperature;

the injection molding module is connected with the temperature-regulating core module and is used for preparing a pipe blank by introducing a molten injection molding raw material with set temperature and set quality into an injection molding cavity formed by matching the temperature-regulating core and the injection molding mold sleeve;

the blow molding module is connected with the temperature-adjusting core module and is used for blowing gas into a blow molding cavity formed by matching the temperature-adjusting core and the blow molding sleeve so as to prepare the pipe blank into a molded product;

2. The multiple data monitoring based injection blow molding hollow forming control system according to claim 1, wherein the temperature adjusting mandrel module comprises a plurality of parison mandrels and mandrel heating modules, wherein,

for a single parison core rod, the parison core rod is connected with the blowing port and is used as an injection inner die sleeve of a tube parison to be matched with the injection die sleeve to form a tube parison injection die cavity, and a heating inner layer is arranged in the parison core rod and is used for heating the parison core rod to a set temperature;

3. The injection-blow hollow molding control system based on multiple data monitoring as claimed in claim 2, wherein the molding control module controls the core rod heating module to heat the parison core rod and determines whether the parison core rod completes the injection preparation according to a difference Δ TI between a temperature TI at any position of the parison core rod detected by the detection module and a corresponding preset heating temperature standard TI, the molding control module is provided with a parison core rod temperature difference standard Δ T, wherein Δ T is greater than 0 and less than 5 ℃, a difference Δ TI = TI-TI between TI and TI is set,

when the delta ti is less than or equal to the delta T, the forming control module judges that the temperature difference meets the standard and the parison core rod finishes injection preparation, and controls the blowing nozzle to clamp the parison core rod and the injection mold sleeve which finishes injection preparation to mold a pipe blank;

4. The injection-blow hollow molding control system based on multiple data monitoring according to claim 3, wherein the molding control module determines the adjustment manner for the injection molding material injection temperature and the injection molding dwell time period according to the average temperature TA of the parison core rod detected by the detection module, the molding control module is provided with a first parison core rod average temperature criterion TA1, a second parison core rod average temperature criterion TA2, a first material temperature adjustment coefficient α 1, a second material temperature adjustment coefficient α 2, and a third material temperature adjustment coefficient α 3, wherein TA1 < TA2,1 < α 1.3 < α 2 < α 3,

when TA1 is not less than TA and not more than TA2, the forming control module judges that the temperature of the parison core rod meets the standard, and adjusts the injection molding raw material injection temperature and the injection molding pressure maintaining duration by adopting a second raw material temperature adjusting coefficient alpha 2, and tb = tb0 × alpha 2 and hb = hb0 × alpha 2 are set;

when TA is larger than TA2, the molding control module judges that the temperature of the parison core rod is higher than the standard, adjusts the injection molding raw material injection temperature and the injection molding pressure maintaining time length by adopting a third raw material temperature adjusting coefficient alpha 3, and sets tb = tb0 × alpha 3 and hb = hb0 × alpha 3.

5. The multiple data monitoring-based injection-blow hollow molding control system according to claim 4, wherein the molding control module determines the blow-molding preparation temperature for heating the inner layer of the parison core rod and the blow-molding blowing pressure according to the difference Δ TC between the actual temperature TC of the tube blank formed on the parison core rod and tb detected by the detection module, the molding control module is provided with a first tube blank temperature difference criterion Δ TC1, a second tube blank temperature difference criterion Δ TC2, a first parison core rod thermal insulation adjustment coefficient β 1 and a second parison core rod thermal insulation adjustment coefficient β 2, wherein Δ TC1 is greater than 0 and less than Δ TC2, β 1 is greater than 0.7 and less than β 2 and less than 1.6, and the difference Δ TC = tb-TC between TC and tb is set,

when the delta TC is larger than or equal to the delta TC2, the forming control module determines that the temperature difference of the tube blank is higher than a standard value, adjusts the blow molding preparation temperature and the blow molding blowing pressure by adopting a second blank core rod heat preservation adjusting coefficient beta 2, and sets td = td0 x beta 2 and pd = pd0 x beta 2.

6. The injection blow hollow molding control system based on multiple data monitoring as claimed in claim 3, wherein the molding control module calculates the average heating time ht of a single mandrel heating module for any one of the parison mandrels according to the heating time of the single mandrel heating module detected by the detection module and compares the ht with the single process time standard of the mandrel heating module to determine whether the working efficiency of the single mandrel heating module is qualified, and when the working efficiency of the mandrel heating module is determined to be unqualified, the molding control module calculates the actual working efficiency ratio E according to ht and H0 and compares E with the preset working efficiency ratio E0 to determine the working failure state of the mandrel heating module equipment, and is provided with the single process time standard H0 of the mandrel heating module and the preset working efficiency ratio E0, wherein H0 is greater than 0,1 is greater than E0 and less than 2.5, and the actual working efficiency ratio E = ht/H0 is set,

7. The multiple data monitoring-based injection-blow hollow molding control system according to claim 5, wherein the molding control module determines whether the preset blow molding blow pressure during the blow molding process meets the standard or not by calculating the comparison result of the material thickness variation Δ R and the preset product material thickness difference standard Δ R0 according to the maximum value and the minimum value in the material thickness data of the preset position of the molded product detected by the detection module, the molding control module is provided with a preset product standard material thickness R0 and a preset product material thickness difference standard Δ R0, where Δ R0 is greater than 0 and less than R0,

8. The injection-blow hollow molding control system based on multiple data monitoring as claimed in claim 7, wherein the molding control module determines an adjustment amount for a preset blow molding blow pressure according to Δ R, and the molding control module is provided with a first material thickness deviation reference standard Δ R1, a second material thickness deviation reference standard Δ R2, a first pressure regulating coefficient ω 1, a second pressure regulating coefficient ω 2, and a third pressure regulating coefficient ω 3, wherein Δ R0 < Δ R1 < Δ R2,1 < ω 2 < ω 3,

when the delta R is less than or equal to the delta R1, the forming control module judges that the material thickness deviation meets a first adjusting standard, and the forming control module adjusts the preset blow molding blowing pressure to pd0', and sets pd0' = pd0 multiplied by omega 1;

when the delta R1 is larger than the delta R and is smaller than or equal to the delta R2, the forming control module judges that the material thickness deviation meets a second adjusting standard, and the forming control module adjusts the preset blow molding blowing pressure to pd0', and sets pd0' = pd0 multiplied by omega 2;

9. The multiple data monitoring-based injection-blow hollow molding control system according to claim 7, wherein the molding control module determines whether blow pressure adjustment can be achieved according to a comparison result between the adjusted preset blow pressure value pd0' and a blow pressure threshold value, the molding control module is provided with a blow pressure threshold value PDmax,

when pd0 'is less than or equal to PDmax, the molding control module judges that the blow molding pressure adjustment can be realized and adjusts the preset blow molding blow pressure to pd0';

when pd0' is greater than PDmax, the molding control module judges that the blow molding pressure adjustment cannot be realized, and the molding control module adjusts the preset blow molding blow pressure to PDmax and adjusts the preset injection molding preparation temperature of the injection molding raw material to tb0 multiplied by mu, wherein mu is a relevant injection molding temperature adjustment coefficient, and 1 is more than mu and less than 1.2.

10. The multiple data monitoring-based injection-blow hollow molding control system according to any one of claims 1-9, further comprising an execution robot module respectively connected to the temperature-adjusting mandrel module, the injection molding module, the blow molding module, the detection module, and the molding control module, for connecting the parison mandrel with the blow port and combining the blow port connected with the parison mandrel with the injection mold sleeve or the blow mold sleeve to prepare a molded product.