A method, device, equipment and medium for switching injection molding parameters

Abstract

The present invention discloses a method, device, equipment and medium for switching injection molding parameters. The method comprises: when it is determined that an injection molding machine is in a first injection molding stage, and performs a glue injection operation according to a control mode selected in the first injection molding stage and a first injection molding parameter corresponding to the first injection molding stage, obtaining first physical data; when the first physical data reaches a first physical data threshold corresponding to a physical quantity to which the first physical data belongs, determining that the glue injection operation of the first injection molding stage is completed; judging whether the first injection molding stage is the last injection molding stage; when the first injection molding stage is not the last injection molding stage, obtaining a control mode selected in a second injection molding stage and a second injection molding parameter corresponding to the second injection molding stage; completing the glue injection operation in the second injection molding stage according to the control mode and the second injection molding parameter selected in the second injection molding stage; or, when it is determined that the first injection molding stage is the last injection molding stage, ending the glue injection operation.

Description

Technical Field

[0001] The present invention relates to the field of injection molding technology, and in particular to a method, device, equipment and medium for switching injection molding parameters. Background Art

[0002] Injection molding technology is a common technology for producing industrial products. Usually, during the injection molding process, it is necessary to switch the injection molding parameters according to the structural changes and quality requirements of the product.

[0003] At present, the common practice in the industry is to use the position of the injection screw as the basis for switching the injection parameters. Although this method can complete the production of products, the actual filling situation of the rubber inside the mold is not directly reflected when switching the injection parameters, resulting in differences in the quality of the final products produced.

[0004] Therefore, how to accurately grasp the switching timing of injection molding parameters and improve product quality has become a problem that needs to be solved at present. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the switching timing of injection molding parameters is inaccurate due to changes in factors such as materials and temperature, resulting in unstable quality of finished products, thereby providing a method, device, equipment and medium for switching injection molding parameters.

[0006] In a first aspect, the present invention provides a method for switching injection molding parameters, comprising:

[0007] When it is determined that the injection molding machine is in the first injection molding stage, and performs the glue injection operation according to the control mode selected in the first injection molding stage and the first injection molding parameters corresponding to the first injection molding stage, the first physical data is obtained, and the first physical data is data corresponding to the physical quantity used to indicate the glue injection progress in the first injection molding stage; when the first physical data reaches the first physical data threshold value corresponding to the physical quantity to which the first physical data belongs, it is determined that the glue injection operation of the first injection molding stage is completed; it is judged whether the first injection molding stage is the last injection molding stage; when the first injection molding stage is not the last injection molding stage, the control mode selected in the second injection molding stage and the second injection molding parameters corresponding to the second injection molding stage are obtained, and the second injection molding stage is the next injection molding stage of the first injection molding stage; according to the control mode and the second injection molding parameters selected in the second injection molding stage, the glue injection operation in the second injection molding stage is completed; or, when it is determined that the first injection molding stage is the last injection molding stage, the glue injection operation is ended.

[0008] After selecting the control mode of the first injection molding stage and the injection molding parameters corresponding to the first injection molding stage, the present invention obtains the first physical data when starting the injection molding work of the first injection molding stage, compares the first physical data with the first physical data threshold, and determines whether the injection molding work of the first injection molding stage can be ended according to the comparison result. After determining that the injection molding work of the first injection molding stage can be ended, it is necessary to further determine whether the first injection molding stage is the last injection molding stage in the injection molding process to determine whether the injection molding work of the next stage is required. When it is determined that the first injection molding stage is not the last injection molding stage, the control mode selected for the second injection molding stage and the injection molding parameters corresponding to the second injection molding stage are obtained, and the injection molding work of the second injection molding stage is started; when it is determined that the first injection molding stage is the last injection molding stage, the injection molding process is ended. In the present invention, whether the first physical data reaches the first physical data threshold is used as the basis for switching the injection molding parameters. When the sensor control mode is selected in the injection molding stage, the above method can be used to fully consider the actual filling situation of the rubber material inside the injection mold when switching the injection molding parameters. When the internal filling situation reaches the threshold of the corresponding stage, the injection molding parameters can be switched, thereby ensuring the quality of the product. In the method provided by the present invention, the control mode of each injection molding stage can also be selected according to actual needs, ensuring the versatility of the injection molding equipment and improving the flexibility during use.

[0009] In combination with the first aspect, in a first embodiment of the first aspect, the control mode selected in each injection molding stage includes one of the following:

[0010] Screw position control mode or sensor control mode.

[0011] In combination with the first aspect, in a second embodiment of the first aspect, when it is determined that the injection molding machine is in the first injection molding stage, the glue injection operation is performed according to the control mode selected in the first injection molding stage and the first injection molding parameters corresponding to the first injection molding stage, including:

[0012] According to the mapping relationship between the hot runner and the control parameter, collecting the control parameter corresponding to each of the hot runners;

[0013] When the control parameter reaches a preset control condition, the hot runner is controlled, wherein the hot runner is a channel for the rubber material to enter the injection mold cavity.

[0014] In combination with the first aspect, in a third embodiment of the first aspect, determining whether the first injection molding stage is the last injection molding stage includes:

[0015] Acquire a second injection molding parameter; compare the second injection molding parameter with a preset injection molding parameter to generate a first comparison result; and determine whether the first injection molding stage is the last injection molding stage based on the first comparison result.

[0016] In combination with the first aspect, in a fourth embodiment of the first aspect, when determining that the injection operation of the first injection molding stage is completed, the method includes:

[0017] Update the accumulated injection segment number of the preset storage location.

[0018] In combination with the first aspect, in a fifth embodiment of the first aspect, determining whether the first injection molding stage is the last injection molding stage includes:

[0019] The accumulated number of injection molding segments is read; the accumulated number of injection molding segments is compared with a preset segment number threshold to generate a second comparison result; and based on the second comparison result, it is determined whether the first injection molding stage is the last injection molding stage.

[0020] In combination with the first aspect, in a sixth embodiment of the first aspect, after determining that the first injection molding stage is the last injection molding stage, the method further includes:

[0021] Starting from the moment when the first injection molding stage is determined to be the last injection molding stage, the injection operation is performed within a preset time period according to the injection molding parameters corresponding to the preset pressure holding stage.

[0022] In a second aspect, the present invention provides a device for switching injection molding parameters, comprising:

[0023] The first acquisition module is used to acquire the first physical data when it is determined that the injection molding machine performs the injection operation in the first injection molding stage according to the control mode selected in the first injection molding stage and the first injection molding parameters corresponding to the first injection molding stage. The first physical data is data corresponding to the physical quantity used to indicate the progress of the injection in the first injection molding stage; the determination module is used to determine that the injection operation in the first injection molding stage is completed when the first physical data reaches the first physical data threshold corresponding to the physical quantity to which the first physical data belongs; the judgment module is used to judge whether the first injection molding stage is the last injection molding stage; the second acquisition module is used to acquire the control mode selected in the second injection molding stage and the second injection molding parameters corresponding to the second injection molding stage when the first injection molding stage is not the last injection molding stage, and the second injection molding stage is the next injection molding stage of the first injection molding stage; the first injection molding module is used to complete the injection operation in the second injection molding stage according to the control mode and the second injection molding parameters selected in the second injection molding stage; the first control module is used to end the injection operation when it is determined that the first injection molding stage is the last injection molding stage.

[0024] In a third aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory being used to store a computer program, and when the computer program is executed by the processor, the processor executes a method for switching injection molding parameters as described in any one of the invention contents.

[0025] In a fourth aspect, the present invention provides a computer-readable storage medium, characterized in that the computer-readable storage medium is used to store computer instructions, and when the computer instructions are executed by a processor, a method for switching injection molding parameters as described in any one of the invention contents is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A flow chart of a method for switching injection molding parameters provided by an embodiment of the present invention;

[0028] Figure 2 A connection diagram of a switching device for injection molding parameters provided by the present invention;

[0029] Figure 3 A computer equipment connection diagram provided for the present invention. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0031] Before elaborating on the content of the scheme of the present application, a brief description is first given of the equipment used in the method of the present invention, namely, the injection molding machine. The injection molding machine, also known as the injection molding machine or injection machine, is the main molding equipment for making plastic products of various shapes from thermoplastics or thermosetting plastics using plastic molding molds. The working principle of the injection molding machine is to inject the molten plastic into the closed mold cavity with the help of the thrust of the screw, and obtain the desired product after solidification and shaping. As a production equipment for batch plastic products, the injection molding machine has the primary task of ensuring the quality of the product, and the quality of the product is closely related to the switching of injection molding parameters. In a complete injection molding process, several injection molding stages are required, and the selection of injection molding parameters for each injection molding stage is related to the size and complexity of the product. Simple products can be quickly molded in one or two stages, while large and complex molds need to be injection molded in multiple stages.

[0032] The present invention discloses a method for switching injection molding parameters, such as Figure 1 As shown, the following steps are included:

[0033] S11: when it is determined that the injection molding machine is in the first injection molding stage, and performs the glue injection operation according to the control mode selected in the first injection molding stage and the first injection molding parameters corresponding to the first injection molding stage, first physical data is acquired.

[0034] Specifically, the first injection molding stage is any one of at least one injection molding stage included in the entire injection molding process.

[0035] Specifically, a control mode may be selected in each injection molding stage, and the control modes include but are not limited to a screw position control mode and a sensor control mode.

[0036] Specifically, each injection molding stage corresponds to a set of injection molding parameters, and the injection molding parameters include but are not limited to injection molding speed, injection molding pressure, etc.

[0037] Specifically, the first physical data is data collected in the first injection molding stage, and is data corresponding to a physical quantity used to indicate the progress of the injection molding in the first injection molding stage. The first physical data is collected by a sensor corresponding to the first injection molding stage, and the installation position and type of the sensor are related to the control mode selected in the injection molding stage.

[0038] For example, when the control mode selected in the injection molding stage is the screw position control mode, the sensor is installed at the screw head, and the sensor type is a displacement sensor, which is used to collect the distance between the injection molding screw head and the nozzle. When the control mode selected in the injection molding stage is the sensor control mode, the sensor is installed inside the injection mold, the type of sensor corresponds to the structural characteristics of the injection molded product, and the specific installation position of the sensor inside the injection mold corresponds to the injection molding stage to which it belongs.

[0039] Exemplarily, after the injection molding product is determined and before the injection molding operation is started, the injection molding information is determined based on the structural characteristics of the injection molding product itself, and the injection molding information includes: ① the injection molding stage corresponding to the injection molding product; ② the injection molding parameters corresponding to each injection molding stage; ③ the control mode selected for each injection molding stage; ④ the sensor type corresponding to each injection molding stage; ⑤ the physical threshold corresponding to the physical data collected by the sensor at each injection molding stage. It should be noted that in the sensor control mode, the sensor type corresponding to each injection molding stage can be the same or different. In this embodiment, the injection molding information corresponding to the injection molding product is shown in Table 1.

[0040]

[0041] Table 1

[0042] After receiving the injection molding signal (the injection molding signal is a sign of the start of injection molding), the first injection molding stage is entered, and the injection molding operation of the first injection molding stage is started according to the first injection molding parameters corresponding to the first injection molding stage and the control mode selected in the first injection molding stage. After starting the injection molding operation, the first physical data is directly obtained. In this embodiment, the first physical data is the distance between the injection molding screw head and the nozzle.

[0043] S12: When the first physical data reaches a first physical data threshold corresponding to the physical quantity to which the first physical data belongs, it is determined that the injection operation of the first injection molding stage is completed.

[0044] Specifically, the first physical data threshold is a mark value indicating the end of the glue injection operation in the first injection molding stage.

[0045] Exemplarily, still taking the previous embodiment as an example, in the previous embodiment, the screw position control mode is selected in the first injection molding stage. After the injection molding operation of the first injection molding stage is started, the distance between the injection molding screw head and the nozzle is collected by the #1 displacement sensor. When the distance between the injection molding screw head and the nozzle reaches the corresponding distance threshold of 80, it indicates that the first injection molding stage is ended. At this time, the injection operation of the first injection molding stage is stopped.

[0046] S13: Determine whether the first injection molding stage is the last injection molding stage.

[0047] Specifically, after the injection operation of the first injection molding stage is completed, it is necessary to further determine whether the first injection molding stage is the last injection molding stage. The specific determination process can be determined by comparing the second injection molding parameters corresponding to the second injection molding stage with the preset injection molding parameters, or by comparing the cumulative number of injection molding stages with the preset injection molding stage number threshold. The determination method is not specifically limited here and can be determined according to actual conditions.

[0048] S14: When the first injection molding stage is not the last injection molding stage, obtaining a control mode selected for the second injection molding stage and second injection molding parameters corresponding to the second injection molding stage.

[0049] Specifically, the second injection molding stage is the next injection molding stage of the first injection molding stage.

[0050] S15: completing the glue injection operation in the second injection molding stage according to the control mode and the second injection molding parameters selected in the second injection molding stage.

[0051] Specifically, after the glue injection operation of the second injection molding stage is started, the second physical data is obtained, and after the second physical data is obtained, steps S12 to S13 are continued to be performed, that is, by judging whether the second physical data reaches the second physical data threshold, it is judged whether the glue injection operation of the second injection molding stage is completed, and after the glue injection operation of the second injection molding stage is completed, it is further judged whether the second injection molding stage is the last injection molding stage in the injection molding process. Among them, the control mode selected in the second injection molding stage is independent of the control mode selected in the first injection molding stage, and the physical quantity to which the second physical data belongs is also independent of the physical quantity to which the first physical data belongs, and only corresponds to the second injection molding stage.

[0052] For example, still taking the above embodiment as an example, after entering the second injection molding stage, the temperature data collected by the #2 temperature sensor is obtained. When the temperature data reaches 20, it indicates that the second injection molding stage is over, and the injection operation of the second injection molding stage is stopped. At the same time, it is determined whether the second injection molding stage is the last injection molding stage in this injection molding process. If not, continue to enter the third injection molding stage. The execution process of the third injection molding stage is the same as that of the first injection molding stage and the second injection molding stage.

[0053] S16: Alternatively, when it is determined that the first injection molding stage is the last injection molding stage, the glue injection operation is ended.

[0054] Specifically, the injection molding machine adopts at least one control mode for injection molding in all injection molding stages.

[0055] For example, when it is determined that the first injection molding stage is the last injection molding stage, and after the glue injection operation of the first injection molding stage is finished, the glue injection operation can be finished directly, and the injection molded product can be taken out after cooling for a period of time.

[0056] After selecting the control mode of the first injection molding stage and the injection molding parameters corresponding to the first injection molding stage, the present invention obtains the first physical data when starting the injection molding work of the first injection molding stage, compares the first physical data with the first physical data threshold, and determines whether the injection molding work of the first injection molding stage can be ended according to the comparison result. After determining that the injection molding work of the first injection molding stage can be ended, it is necessary to further determine whether the first injection molding stage is the last injection molding stage in the injection molding process to determine whether the injection molding work of the next stage is required. When it is determined that the first injection molding stage is not the last injection molding stage, the control mode selected for the second injection molding stage and the injection molding parameters corresponding to the second injection molding stage are obtained, and the injection molding work of the second injection molding stage is started; when it is determined that the first injection molding stage is the last injection molding stage, the injection molding process is ended. In the present invention, whether the first physical data reaches the first physical data threshold is used as the basis for switching the injection molding parameters. When the sensor control mode is selected in the injection molding stage, the above method can be used to fully consider the actual filling situation of the rubber material inside the injection mold when switching the injection molding parameters. When the internal filling situation reaches the threshold of the corresponding stage, the injection molding parameters can be switched, thereby ensuring the quality of the product. In the method provided by the present invention, the control mode of each injection molding stage can also be selected according to actual needs, ensuring the versatility of the injection molding equipment and improving the flexibility during use.

[0057] In an optional embodiment, when it is determined that the injection molding machine is in the first injection molding stage, performing the glue injection operation according to the control mode selected in the first injection molding stage and the first injection molding parameters corresponding to the first injection molding stage, it includes:

[0058] According to the mapping relationship between the hot runner and the control parameters, the control parameters corresponding to each hot runner are collected; when the control parameters reach the preset control conditions, the hot runner is controlled, wherein the hot runner is a channel for the rubber material to enter the injection mold cavity.

[0059] Exemplarily, the control parameters are acquired by sensors.

[0060] Exemplarily, a hot runner is a channel for the rubber to enter the cavity of the injection mold. The channel has a heating function so that the rubber in the channel always remains in a molten state. In an injection molding machine, there is at least one hot runner. During the injection molding process, each hot runner is opened and closed independently of each other. The opening and closing of the hot runner is only determined by the preset control conditions and has no necessary connection with the injection molding stage. Among them, the control conditions include the control conditions corresponding to when the hot runner is opened and the control conditions corresponding to when the hot runner is closed.

[0061] In this embodiment, there are two hot runners in the injection molding machine, and the mapping relationship between the hot runners and the control conditions is shown in Table 2. After receiving the injection signal and entering the first injection stage to start the injection operation, all sensors installed on the injection molding machine begin to collect control parameters. When the control parameters collected by the sensor reach the corresponding control conditions, the hot runner can be controlled, including opening and closing.

[0062]

[0063] Table 2

[0064] For example, after receiving the injection molding signal, all sensors start to collect data. Since the #4 signal sensor is used to collect the injection molding signal, the #4 signal sensor will first reach the control condition for opening the #1 hot runner, and then open the #1 hot runner. (It should be noted that the #4 signal sensor is used to collect the injection molding signal. When the injection molding signal is collected, the value is 1, and when the injection molding signal is not collected, the value is 0). After the #1 hot runner is turned on, when the pressure data (control parameter) collected by the #2 pressure sensor reaches the set value of 10, the #1 hot runner is closed. The control of the #2 hot runner is the same. When the temperature data (control parameter) collected by the #1 temperature sensor reaches the set value for opening the #2 hot runner, the #2 hot runner is opened. When the #3 humidity sensor reaches the set value for closing the #2 hot runner, the #2 hot runner is closed. The opening and closing of #2 hot runner are independent of #1 hot runner. Therefore, #2 hot runner may be opened during the opening of #1 hot runner, or it may be opened after #1 hot runner is closed. The opening or closing of #2 hot runner is based only on whether the corresponding control conditions for opening or closing are met.

[0065] Since injection molding products are different, the control conditions corresponding to the opening and closing of each hot runner are closely related to the characteristics of the injection molding product itself. After the injection molding product is determined, the control conditions corresponding to each hot runner are set according to the structural characteristics of the injection molding product itself.

[0066] In an optional embodiment, determining whether the first injection molding stage is the last injection molding stage includes:

[0067] Acquire a second injection molding parameter; compare the second injection molding parameter with a preset injection molding parameter to generate a first comparison result; and determine whether the first injection molding stage is the last injection molding stage based on the first comparison result.

[0068] Exemplarily, when the first comparison result is that the second injection molding parameter is consistent with the preset injection molding parameter, it is determined that the first injection molding stage is the last injection molding stage; when the second comparison result is that the second injection molding parameter is inconsistent with the preset injection molding parameter, it is determined that the first injection molding stage is not the last injection molding stage.

[0069] In this embodiment, when it is determined that the injection molding process of the injection molding product is divided into n injection molding stages according to the structural characteristics of the injection molding product, an injection molding stage will be added after the nth injection molding stage, and the injection molding parameters corresponding to the injection molding stage will be set to 0. It is not necessary to set the remaining injection molding information in this injection molding stage because the injection molding stage only serves as an end mark.

[0070] Assume that, in another embodiment, the injection molding process of the injection molding product is divided into two injection molding stages. Then, according to the above description, after the second injection molding stage, there is another injection molding stage to mark the end of the injection molding process (equivalent to the injection molding product having three injection molding stages, two actual injection molding stages and one injection molding stage marking the end). After the injection molding operation of the first injection molding stage is completed, the second injection molding parameter corresponding to the second injection molding stage (i.e., the next injection molding stage of the first injection molding stage) is obtained, and the second injection molding parameter is compared with the preset injection molding parameter (i.e., 0). When the two are consistent, it means that the first injection molding stage is the last injection molding stage, and the injection molding operation of the injection molding product is ended. When the two are inconsistent, it means that the first injection molding stage is not the last injection molding stage, then the second injection molding stage is entered to perform the injection molding operation of the second injection molding stage. When it is determined that the injection molding operation of the second injection molding stage is over, the injection molding parameter corresponding to the third injection molding stage is read. Similarly, the third injection molding parameter is compared with the preset injection molding parameter, and it is determined whether the second injection molding stage is the last injection molding stage according to the comparison result.

[0071] In an optional embodiment, when determining that the injection operation of the first injection molding stage is completed, the method includes:

[0072] Update the accumulated injection segment number of the preset storage location.

[0073] For example, before the injection molding operation of the injection molding product is started, the cumulative injection molding segment number is an initial value of 0. After the injection molding operation of the injection molding product is started, when it is determined that the injection molding operation of an injection molding stage is completed, the current cumulative injection molding segment number is immediately increased by 1 to complete the update operation of the cumulative injection molding segment number. The preset position can be any position in the injection molding machine memory.

[0074] For example, the injection molding process of a certain injection molding product is divided into three injection molding stages. Before entering the injection molding stage, the cumulative number of injection molding stages is set to 0. After entering the injection molding stage, and when it is determined that the glue injection operation of the first injection molding stage is completed, 1 is directly added to the cumulative number of injection molding stages corresponding to the end time of the glue injection operation. At this time, the cumulative number of injection molding stages is updated to 1.

[0075] In an optional embodiment, determining whether the first injection molding stage is the last injection molding stage includes:

[0076] The accumulated number of injection molding segments is read; the accumulated number of injection molding segments is compared with a preset segment number threshold to generate a second comparison result; and based on the second comparison result, it is determined whether the first injection molding stage is the last injection molding stage.

[0077] Exemplarily, when the second comparison result is that the cumulative number of injection molding segments is equal to the preset segment number threshold, it indicates that the first injection molding stage is the last injection molding stage; when the second comparison result is that the cumulative number of injection molding segments is less than the preset segment number threshold, it indicates that the first injection molding stage is not the last injection molding stage.

[0078] Exemplarily, before starting the injection molding operation, after determining the number of injection molding segments of the injection molding product, the number of injection molding segments is saved as a preset segment threshold in a preset storage location, and the cumulative number of injection molding segments is set to 0. For example, if the injection molding process of a certain injection molding product is divided into three injection molding stages, the preset segment threshold is 3, and the preset segment threshold 3 is saved in a preset storage location. When it is determined that the injection operation of the first injection molding stage is completed, the update of the cumulative number of injection molding segments is completed, that is, it is changed from 0 to 1. After completing the update of the cumulative number of injection molding segments, first, read the cumulative number of injection molding segments, such as the cumulative number of injection molding segments read is 1. Then, compare the cumulative number of injection molding segments with the preset segment threshold, 1<3, so the first injection molding stage is not the last injection molding stage, then enter the next injection molding stage to continue to complete the injection molding. Until the cumulative number of injection molding segments read reaches the preset segment threshold 3, it is determined that the corresponding injection molding stage is the last injection molding stage.

[0079] In an optional embodiment, after determining that the first injection molding stage is the last injection molding stage, the method further includes:

[0080] Starting from the moment when the first injection molding stage is determined to be the last injection molding stage, the injection operation is performed within a preset time period according to the injection molding parameters corresponding to the preset pressure holding stage.

[0081] For example, after determining that the first injection molding stage is the last injection molding stage in the entire injection molding process, the injection molding process can be ended directly, or the last stage of the injection molding process, namely the pressure holding stage, can be entered. In the pressure holding stage, there will be pre-set injection molding parameters corresponding to the pressure holding stage. Starting from the moment when the first injection molding stage is determined to be the last injection molding stage, the injection operation is performed within the preset time period according to the injection molding parameters corresponding to the preset pressure holding stage, and the glue is continuously pushed forward for a period of time to prevent the product surface from shrinking due to cooling, so that the final product is fuller and more shiny.

[0082] For example, in the pressure holding stage, the corresponding injection parameters are (a, b). After the injection operation of the first injection stage is completed, the injection molding machine continues the injection molding operation for another 10 seconds according to the injection molding parameters (a, b) corresponding to the pressure holding stage. After 10 seconds, the injection molding process can be completed. After cooling, take out the injection molded product.

[0083] In a second aspect, the present invention provides a device for switching injection molding parameters, such as Figure 2 As shown, including:

[0084] The first acquisition module 21 is used to acquire first physical data when it is determined that the injection molding machine is in the first injection molding stage and performs the injection operation according to the control mode selected in the first injection molding stage and the first injection molding parameters corresponding to the first injection molding stage. The first physical data is data corresponding to a physical quantity indicating the progress of the injection in the first injection molding stage.

[0085] The determination module 22 is used to determine that the injection operation of the first injection molding stage is completed when the first physical data reaches a first physical data threshold corresponding to the physical quantity to which the first physical data belongs.

[0086] The judging module 23 is used to judge whether the first injection molding stage is the last injection molding stage.

[0087] The second acquisition module 24 is used to acquire the control mode selected for the second injection molding stage and the second injection molding parameters corresponding to the second injection molding stage when the first injection molding stage is not the last injection molding stage. The second injection molding stage is the next injection molding stage of the first injection molding stage.

[0088] The first injection molding module 25 is used to complete the glue injection operation in the second injection molding stage according to the control mode and the second injection molding parameters selected in the second injection molding stage.

[0089] The first control module 26 is used to end the glue injection operation when it is determined that the first injection stage is the last injection stage.

[0090] In an optional embodiment, it also includes:

[0091] An acquisition module is used to collect the control parameters corresponding to each hot runner according to the mapping relationship between the hot runner and the control parameters; a second control module is used to control the hot runner when the control parameters reach a preset control condition, wherein the hot runner is a channel for the rubber to enter the injection mold cavity.

[0092] In an optional embodiment, the judging module 23 includes:

[0093] The acquisition submodule is used to acquire the second injection molding parameters; the comparison submodule is used to compare the second injection molding parameters with the preset injection molding parameters to generate a first comparison result; the judgment submodule is used to judge whether the first injection molding stage is the last injection molding stage based on the first comparison result.

[0094] In an optional embodiment, it also includes:

[0095] The update module is used to update the cumulative number of injection molding segments in the preset storage location.

[0096] In an optional embodiment, the judging module 23 includes:

[0097] The reading submodule is used to read the cumulative number of injection molding segments; the comparing submodule is used to compare the cumulative number of injection molding segments with a preset segment number threshold to generate a second comparison result; and the judging submodule is used to judge whether the first injection molding stage is the last injection molding stage based on the second comparison result.

[0098] In an optional embodiment, after the first control module 26, the following is further included:

[0099] The second injection molding module is used to start from the moment when the first injection molding stage is determined to be the last injection molding stage, and to perform the injection operation within a preset time period according to the injection molding parameters corresponding to the preset pressure holding stage.

[0100] This embodiment provides a computer device, such as Figure 3 As shown, the computer device may include at least one processor 31, at least one communication interface 32, at least one communication bus 33 and at least one memory 34, wherein the communication interface 32 may include a display screen (Display), a keyboard (Keyboard), and the optional communication interface 32 may also include a standard wired interface and a wireless interface. The memory 34 may be a high-speed RAM memory (Random Access Memory, volatile random access memory) or a non-volatile memory (non-volatile memory), such as at least one disk storage. The memory 34 may also be at least one storage device located away from the aforementioned processor 31. The processor 31 may be combined with Figure 3 In the described device, the memory 34 stores an application program, and the processor 31 calls the program code stored in the memory 34 to execute the method for switching injection molding parameters of any of the above method embodiments.

[0101] The communication bus 33 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The communication bus 33 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0102] Among them, the memory 34 may include a volatile memory (English: volatile memory), such as a random access memory (English: random-access memory, abbreviated: RAM); the memory may also include a non-volatile memory (English: non-volatile memory), such as a flash memory (English: flash memory), a hard disk drive (English: hard disk drive, abbreviated: HDD) or a solid-state drive (English: solid-state drive, abbreviated: SSD); the memory 34 may also include a combination of the above types of memory.

[0103] The processor 31 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and a NP.

[0104] The processor 31 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof. Optionally, the memory 34 is also used to store program instructions. The processor 31 may call program instructions to implement the method for switching injection molding parameters in any embodiment of the present invention.

[0105] This embodiment provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions can execute the method for switching injection molding parameters in any of the above method embodiments. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory (Flash Memory), a hard disk (HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above types of memory.

[0106] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A method for switching injection molding parameters, characterized in that: include: When it is determined that the injection molding machine is in the first injection molding stage, and performs the glue injection operation according to the control mode selected in the first injection molding stage and the first injection molding parameters corresponding to the first injection molding stage, first physical data is obtained, where the first physical data is data corresponding to a physical quantity indicating the glue injection progress in the first injection molding stage; When the first physical data reaches a first physical data threshold corresponding to the physical quantity to which the first physical data belongs, determining that the injection operation of the first injection molding stage is completed; Determining whether the first injection molding stage is the last injection molding stage; When the first injection molding stage is not the last injection molding stage, obtaining a control mode selected for a second injection molding stage and second injection molding parameters corresponding to the second injection molding stage, the second injection molding stage being the next injection molding stage of the first injection molding stage; According to the control mode and the second injection molding parameters selected in the second injection molding stage, the glue injection operation in the second injection molding stage is completed; Alternatively, when it is determined that the first injection molding stage is the last injection molding stage, the glue injection operation is ended; The control mode selected in each injection molding stage includes one of the following: screw position control mode or sensor control mode. When the control mode selected in the injection molding stage is the screw position control mode, the sensor is installed on the screw head, and the sensor type is a displacement sensor; when the control mode selected in the injection molding stage is the sensor control mode, the sensor is installed inside the injection mold, the type of sensor corresponds to the structural characteristics of the injection molded product, and the specific installation position of the sensor inside the injection mold corresponds to the injection molding stage to which it belongs.

2. The method for switching injection molding parameters according to claim 1, characterized in that: When it is determined that the injection molding machine is in the first injection molding stage, the glue injection operation is performed according to the control mode selected in the first injection molding stage and the first injection molding parameters corresponding to the first injection molding stage, including: According to the mapping relationship between the hot runner and the control parameter, collecting the control parameter corresponding to each of the hot runners; When the control parameter reaches a preset control condition, the hot runner is controlled, wherein the hot runner is a channel for the rubber material to enter the injection mold cavity.

3. The method for switching injection molding parameters according to any one of claims 1 to 2, characterized in that: The determining whether the first injection molding stage is the last injection molding stage comprises: Obtain the second injection molding parameters; Comparing the second injection molding parameter with the preset injection molding parameter to generate a first comparison result; Based on the first comparison result, it is determined whether the first injection molding stage is the last injection molding stage.

4. The method for switching injection molding parameters according to claim 1, characterized in that: When determining that the injection operation of the first injection molding stage is completed, it includes: Update the accumulated injection segment number of the preset storage location.

5. The method for switching injection molding parameters according to claim 4, characterized in that: The determining whether the first injection molding stage is the last injection molding stage comprises: Reading the accumulated number of injection molding sections; Compare the accumulated injection molding segment number with a preset segment number threshold to generate a second comparison result; Based on the second comparison result, it is determined whether the first injection molding stage is the last injection molding stage.

6. The method for switching injection molding parameters according to claim 1, characterized in that: After determining that the first injection molding stage is the last injection molding stage, the method further includes: Starting from the moment when the first injection molding stage is determined to be the last injection molding stage, the injection operation is performed within a preset time period according to the injection molding parameters corresponding to the preset pressure holding stage.

7. A device for switching injection molding parameters, characterized in that: include: A first acquisition module, configured to acquire first physical data when it is determined that the injection molding machine performs a glue injection operation in a first injection molding stage according to a control mode selected in the first injection molding stage and first injection molding parameters corresponding to the first injection molding stage, wherein the first physical data is data corresponding to a physical quantity indicating a glue injection progress in the first injection molding stage; a determination module, configured to determine that the injection operation of the first injection molding stage is completed when the first physical data reaches a first physical data threshold corresponding to the physical quantity to which the first physical data belongs; A judging module, used for judging whether the first injection molding stage is the last injection molding stage; A second acquisition module, for acquiring a control mode selected for a second injection molding stage and second injection molding parameters corresponding to the second injection molding stage when the first injection molding stage is not the last injection molding stage, the second injection molding stage being the next injection molding stage of the first injection molding stage; A first injection molding module, used for completing the glue injection operation in the second injection molding stage according to the control mode and the second injection molding parameters selected in the second injection molding stage; The first control module is used to end the injection operation when it is determined that the first injection molding stage is the last injection molding stage; the control mode selected in each injection molding stage includes one of the following: a screw position control mode or a sensor control mode. When the control mode selected in the injection molding stage is the screw position control mode, the sensor is installed on the screw head, and the sensor type is a displacement sensor; when the control mode selected in the injection molding stage is the sensor control mode, the sensor is installed inside the injection mold, the type of the sensor corresponds to the structural characteristics of the injection molded product, and the specific installation position of the sensor inside the injection mold corresponds to the injection molding stage to which it belongs.

8. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory is used to store a computer program, and when the computer program is executed by the processor, the processor executes the method for switching injection molding parameters as described in any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store computer instructions. When the computer instructions are executed by a processor, the method for switching injection molding parameters according to any one of claims 1 to 6 is implemented.

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