Control system for a blow-molder

Abstract

The application discloses a control system of an injection-blowing machine and relates to the technical field of injection-blowing machines. The control system comprises an integrated mold opening and closing device, an injection mold opening and closing device, a mold temperature mold opening and closing device and a blow mold opening and closing device; a first motor is connected with the integrated mold opening and closing device, and the first motor is used for driving the injection mold opening and closing device, the mold temperature mold opening and closing device and the blow mold opening and closing device to open or close simultaneously. The injection mold opening and closing device, the mold temperature mold opening and closing device and the blow mold opening and closing device are integrated in the integrated mold opening and closing device, and one motor is used for driving simultaneously, so that the number of motors required is reduced, the cost is lowered, the action instructions issued to the motor are reduced, the control process of the whole control system is simplified, the whole production cycle is shortened due to simultaneous movement of the devices, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of injection molding machine technology, and more particularly to a control system for an injection molding machine. Background Technology

[0002] Injection blow molding is a plastic processing technology that combines injection molding and blow molding. It is mainly used to produce high-precision, high-sealing hollow plastic products (such as medicine bottles, cosmetic bottles, etc.).

[0003] In related technologies, each unit in the injection blow molding machine control system is independently controlled, with corresponding motors driving different devices (at least including injection molding mold opening and closing devices, mold temperature mold opening and closing devices, and blow molding mold opening and closing devices). This results in a large number of motors required for the entire control system, leading to higher costs. Furthermore, the independent control of each motor requires the main control system to issue multiple action commands to the corresponding motors sequentially according to the process flow. Upon receiving the commands, the motors drive the corresponding devices, making the control process complex. The sequential movement of each device also results in a longer production cycle and lower production efficiency. Utility Model Content

[0004] The purpose of this application is to provide a control system for an injection molding machine to solve the problems of a large number of motors required, high cost, complex control process, and low production efficiency in related technologies.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, embodiments of this application provide a control system for an injection blow molding machine, comprising: an integrated mold opening and closing device, the integrated mold opening and closing device including an injection molding mold opening and closing device, a mold temperature mold opening and closing device, and a blow molding mold opening and closing device; a first motor connected to the integrated mold opening and closing device, the first motor being used to drive the injection molding mold opening and closing device, the mold temperature mold opening and closing device, and the blow molding mold opening and closing device to simultaneously open or close the mold.

[0007] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0008] The control system of the injection blow molding machine in this embodiment includes an integrated mold opening and closing device and a first motor. The integrated mold opening and closing device includes an injection molding mold opening and closing device, a mold temperature molding mold opening and closing device, and a blow molding mold opening and closing device. The first motor is connected to the integrated mold opening and closing device and is used to drive the injection molding mold opening and closing device, the mold temperature molding mold opening and closing device, and the blow molding mold opening and closing device to open or close the mold simultaneously. By integrating the injection molding mold opening and closing device, the mold temperature molding mold opening and closing device, and the blow molding mold opening and closing device into an integrated mold opening and closing device and using a single motor for simultaneous drive, the number of required motors is reduced (from 3 to 1), reducing costs. Furthermore, the number of action commands issued to the motor is reduced (from 3 to 1), simplifying the control flow of the entire control system. The simultaneous movement of all devices shortens the entire production cycle and improves production efficiency. Attached Figure Description

[0009] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0010] Figure 1 This is a schematic diagram of the injection blow molding process for plastics in related technologies;

[0011] Figure 2 This is a schematic diagram of the control system of an injection blow molding machine in related technologies;

[0012] Figure 3 A schematic diagram of the control system of an injection blow molding machine provided for one embodiment of this application;

[0013] Figure 4 This is a schematic diagram of the structure of an integrated mold opening and closing device provided in one embodiment of this application. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0015] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein. Furthermore, "and / or" in this application indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship. It should be noted that all data involved in this application was obtained with the user's authorization.

[0016] like Figure 1 As shown, the injection blow molding process mainly includes the following processes: pre-plasticizing process, injection molding process, mold temperature control process, blow molding process, and demolding process, each corresponding to different units. The core flow of the injection blow molding process is divided into the following two stages: 1) Injection stage, where molten plastic is injected into the injection mold to form a tubular preform, which is wrapped around a mandrel and cooled to solidify; 2) Blow molding stage, where the mandrel with the preform is transferred to the blow mold, compressed air is introduced to cause the preform to expand and fit against the inner wall of the blow mold, and it is demolded after cooling.

[0017] Figure 2 This is a schematic diagram of the control system of an injection molding machine in related technologies. For example... Figure 2 As shown, the control system of an injection blow molding machine includes a main control system 21, a drive system 22, a first motor 23, a second motor 24, a third motor 25, an injection molding mold opening and closing device 26 in the injection molding system, a mold temperature mold opening and closing device 27 in the mold temperature system, and a blow molding mold opening and closing device 28 in the blow molding system. Each motor drives the corresponding device to move. The entire control system requires three motors for the mold opening and closing action, resulting in high costs. In addition, the main control system needs to issue three action commands to the corresponding three motors in sequence according to the process flow. After receiving the commands, the motors drive the corresponding devices to move, which makes the control flow of the entire control system complex. Moreover, the sequential movement of each device results in a long production cycle and low production efficiency. To address these issues, this application proposes a control system for an injection blow molding machine to solve the problems of a large number of required motors, high costs, complex control flow, and low production efficiency in related technologies.

[0018] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0019] Figure 3 This is a schematic diagram of the control system of an injection molding machine provided as an embodiment of this application. Figure 3 As shown, the control system of the injection blow molding machine in this embodiment of the application may specifically include: an integrated mold opening and closing device 31 and a first motor 23. Wherein,

[0020] The integrated mold opening and closing device 31 includes an injection molding mold opening and closing device 26 in the injection molding system, a mold temperature mold opening and closing device 27 in the mold temperature system, and a blow molding mold opening and closing device 28 in the blow molding system.

[0021] The first motor 23 is connected to the integrated mold opening and closing device 31. The first motor 23 is used to drive the injection molding mold opening and closing device 26, the mold temperature mold opening and closing device 27 and the blow molding mold opening and closing device 28 to open or close the mold simultaneously.

[0022] Among them, such as Figure 4 As shown, Figure 3 The integrated mold opening and closing device 31 may also include: a fixed base 41 and a connecting block 42.

[0023] Figure 3 The injection molding mold opening and closing device 26 may specifically include: a fixed mold platen 261 for injection molding and a moving mold platen 262 for injection molding.

[0024] Figure 3 The mold temperature opening and closing device 27 may specifically include: a mold temperature opening and closing fixed mold platen 271 and a mold temperature opening and closing moving mold platen 272.

[0025] Figure 3 The blow molding opening and closing device 28 may specifically include: a fixed mold platen 281 for blow molding opening and closing and a moving mold platen 282 for blow molding opening and closing.

[0026] The fixing base 41 is connected to the injection mold opening and closing fixed platen 261 in the injection mold opening and closing device, the mold temperature opening and closing fixed platen 271 in the mold temperature opening and closing device, and the blow mold opening and closing fixed platen 281 in the blow mold opening and closing device, respectively, so as to fix the injection mold opening and closing fixed platen 261, the mold temperature opening and closing fixed platen 271, and the blow mold opening and closing fixed platen 281.

[0027] The connecting block 42 is connected to the first motor 23, the injection molding mold opening and closing moving platen 262 in the injection molding mold opening and closing device, the mold temperature opening and closing moving platen 272 in the mold temperature opening and closing device, and the blow molding mold opening and closing moving platen 282 in the blow molding mold opening and closing device. The first motor 23 is used to drive the connecting block 42 to move, so as to drive the injection molding mold opening and closing moving platen 262, the mold temperature opening and closing moving platen 272 and the blow molding mold opening and closing moving platen 282 to move toward or away from the corresponding injection molding mold opening and closing fixed platen 261, the mold temperature opening and closing fixed platen 271 and the blow molding mold opening and closing fixed platen 281.

[0028] When the injection mold opening and closing moving platen 262, the mold temperature opening and closing moving platen 272, and the blow molding opening and closing moving platen 282 move toward the corresponding injection mold opening and closing stationary platen 261, the mold temperature opening and closing stationary platen 271, and the blow molding opening and closing stationary platen 281, the mold closing action is realized.

[0029] When the injection molding mold opening and closing moving platen 262, the mold temperature opening and closing moving platen 272, and the blow molding mold opening and closing moving platen 282 move away from the corresponding injection molding mold opening and closing fixed platen 261, the mold temperature opening and closing fixed platen 271, and the blow molding mold opening and closing fixed platen 281, the mold opening action is realized.

[0030] Furthermore, such as Figure 4 As shown, Figure 3 The integrated mold opening and closing device 31 may also include a pull rod 43.

[0031] The pull rod 43 is connected to the fixed base 41 and the connecting block 42 respectively. The connecting block 42 can move along the pull rod 43 under the drive of the first motor 23.

[0032] The number of tie rods 43 can be two, with the two tie rods 43 located on both sides of the injection molding mold opening and closing device, the mold temperature mold opening and closing device, and the blow molding mold opening and closing device, respectively.

[0033] Furthermore, such as Figure 3 As shown, the control system of the injection blow molding machine in this embodiment of the application may further include: a drive system 22.

[0034] The drive system 22 is connected to the first motor 23. The drive system 22 is used to output a first drive signal to the first motor 23 so that the injection molding mold opening and closing device 26, the mold temperature mold opening and closing device 27 and the blow molding mold opening and closing device 28 can be driven by the first motor 23 to open or close the mold simultaneously.

[0035] Furthermore, such as Figure 3 As shown, the control system of the injection blow molding machine in this embodiment of the application may further include: a main control system 21.

[0036] The main control system 21 is connected to the drive system 22. The main control system 21 is used to output a first action command to the drive system 22 to control the drive system 22 to output a first drive signal to the first motor 23.

[0037] Furthermore, such as Figure 3 As shown, the drive system 22 may specifically include a rectifier module 221 and a first inverter module 222.

[0038] The rectifier module 221 is connected to an external AC power supply and is used to convert the first AC signal output by the external AC power supply into a DC signal.

[0039] The first inverter module 222 is connected to the main control system 21, the rectifier module 221 and the first motor 23 respectively. The first inverter module 222 is used to output a first drive signal to the first motor 23 according to the first action command output by the main control system 21, and to convert the DC signal output by the rectifier module 221 into a second AC signal and output the second AC signal to the first motor 23.

[0040] Furthermore, such as Figure 3 As shown, the control system of the injection blow molding machine in this embodiment of the application may further include: a second motor 24.

[0041] The second motor 24 is connected to the injection device 29 and the drive system 22 in the pre-plasticizing system. The drive system 22 is also used to output a second drive signal to the second motor 24 so as to drive the injection device 29 to operate through the second motor 24.

[0042] Correspondingly, the main control system 21 is also used to: output a second action command to the drive system 22, so as to control the drive system 22 to output a second drive signal to the second motor 24.

[0043] The drive system 22 may further include a second inverter module 223. The second inverter module 223 is connected to the main control system 21, the rectifier module 221, and the second motor 24. The second inverter module 223 is used to output a second drive signal to the second motor 24 according to the second action command output by the main control system 21, and to convert the DC signal output by the rectifier module 221 into a third AC signal and output the third AC signal to the second motor 24.

[0044] Furthermore, such as Figure 3 As shown, the control system of the injection blow molding machine in this embodiment of the application may further include: a third motor 25.

[0045] The third motor 25 is connected to the robot arm 30 and the drive system 22 in the demolding system. The drive system 22 is also used to output a third drive signal to the third motor 25 so as to drive the robot arm 30 to move through the third motor 25.

[0046] Correspondingly, the main control system 21 is also used to: output a third action command to the drive system 22, so as to control the drive system 22 to output a third drive signal to the third motor 25.

[0047] The drive system 22 may further include a third inverter module 224. The third inverter module 224 is connected to the main control system 21, the rectifier module 221 and the third motor 25 respectively. The third inverter module 224 is used to output a third drive signal to the third motor 25 according to the third action command output by the main control system 21, and to convert the DC signal output by the rectifier module 221 into a fourth AC signal and output the fourth AC signal to the third motor 25.

[0048] Furthermore, such as Figure 3As shown, the main control system 21 may specifically include: a human machine interface (HMI) 211, a main controller 212, and a motion control card 213. The main controller 212 is connected to the HMI 211 and the motion control card 213, respectively. The motion control card 213 is connected to each inverter module in the drive system 22, such as the first inverter module 222, the second inverter module 223, and the third inverter module 224.

[0049] The human-machine interface 221 can input data via buttons and touch screen, and output data via screen display, enabling interactive functions such as data display, action operation, parameter setting, etc.

[0050] In summary, the control system of the injection blow molding machine in this application integrates the injection molding mold opening and closing device, the mold temperature mold opening and closing device, and the blow molding mold opening and closing device into an integrated mold opening and closing device, and uses a single motor for simultaneous drive. This reduces the number of required motors and inverter modules (from 3 to 1), lowering costs. Furthermore, it reduces the number of action commands sent to the motor (from 3 to 1), simplifying the control flow of the entire control system. Simultaneous movement of all devices shortens the entire production cycle, improves production efficiency, and enhances the synchronization of control across all devices. The second and third motors also enable drive control of the injection unit in the pre-plasticizing system and the robotic arm in the demolding system.

[0051] The systems, devices, modules, or units described in the above embodiments can be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, a computer can be, for example, a personal computer, laptop computer, cellular phone, camera phone, smartphone, personal digital assistant, media player, navigation device, email device, game console, tablet computer, wearable device, or any combination of these devices.

[0052] For ease of description, the above devices are described separately by function as various units. Of course, in implementing this application, the functions of each unit can be implemented in one or more software and / or hardware.

[0053] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0054] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0055] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0056] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0057] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0058] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0059] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0060] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0061] This application can be described in the general context of computer-executable instructions, such as program modules, that are executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform a specific task or implement a specific abstract data type. This application can also be practiced in distributed computing environments where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0062] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0063] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A control system for an injection molding machine, characterized in that, include: An integrated mold opening and closing device, comprising an injection molding mold opening and closing device, a mold temperature mold opening and closing device, and a blow molding mold opening and closing device; A first motor is connected to the integrated mold opening and closing device. The first motor is used to drive the injection molding mold opening and closing device, the mold temperature mold opening and closing device, and the blow molding mold opening and closing device to open or close the mold simultaneously.

2. The control system according to claim 1, characterized in that, The integrated mold opening and closing device also includes: The fixed base is connected to the injection mold opening and closing fixed platen in the injection mold opening and closing device, the mold temperature opening and closing fixed platen in the mold temperature opening and closing device, and the blow mold opening and closing fixed platen in the blow mold opening and closing device. A connecting block is provided, which is connected to the first motor, the injection molding moving platen in the injection molding opening and closing device, the mold temperature opening and closing moving platen in the mold temperature opening and closing device, and the blow molding moving platen in the blow molding opening and closing device. The first motor is used to drive the connecting block to move, so as to drive the injection molding moving platen, the mold temperature opening and closing moving platen, and the blow molding moving platen to move toward or away from the corresponding injection molding fixed platen, the mold temperature opening and closing fixed platen, and the blow molding fixed platen.

3. The control system according to claim 2, characterized in that, The integrated mold opening and closing device also includes: A pull rod is connected to both the fixed base and the connecting block, and the connecting block can move along the pull rod.

4. The control system according to claim 3, characterized in that, The number of tie rods is two, and the two tie rods are respectively located on both sides of the injection molding mold opening and closing device, the mold temperature mold opening and closing device, and the blow molding mold opening and closing device.

5. The control system according to claim 1, characterized in that, Also includes: A drive system is connected to the first motor. The drive system is used to output a first drive signal to the first motor so as to drive the injection molding mold opening and closing device, the mold temperature mold opening and closing device and the blow molding mold opening and closing device to open or close the mold simultaneously through the first motor.

6. The control system according to claim 5, characterized in that, Also includes: A main control system is connected to the drive system. The main control system is used to output a first action command to the drive system to control the drive system to output the first drive signal to the first motor.

7. The control system according to claim 6, characterized in that, The drive system includes: A rectifier module is connected to an external AC power supply and is used to convert a first AC signal output by the external AC power supply into a DC signal. The first inverter module is connected to the main control system, the rectifier module and the first motor respectively. The first inverter module is used to output the first drive signal to the first motor according to the first action command output by the main control system, and to convert the DC signal output by the rectifier module into a second AC signal and output the second AC signal to the first motor.

8. The control system according to claim 7, characterized in that, Also includes: The second motor is connected to the injection device in the pre-plasticizing system and the drive system, respectively. The drive system is also used to output a second drive signal to the second motor to drive the injection device to operate through the second motor.

9. The control system according to claim 8, characterized in that, Also includes: The third motor is connected to both the robot arm in the demolding system and the drive system. The drive system is also used to output a third drive signal to the third motor to drive the robot arm to move.

10. The control system according to claim 9, characterized in that, The main control system is also configured to: output a second action command to the drive system to control the drive system to output the second drive signal to the second motor; or, output a third action command to the drive system to control the drive system to output the third drive signal to the third motor; The drive system also includes: The second inverter module is connected to the main control system, the rectifier module, and the second motor. The second inverter module is used to output a second drive signal to the second motor according to the second action command output by the main control system, and to convert the DC signal output by the rectifier module into a third AC signal and output the third AC signal to the second motor; or... The third inverter module is connected to the main control system, the rectifier module and the third motor respectively. The third inverter module is used to output the third drive signal to the third motor according to the third action command output by the main control system, and to convert the DC signal output by the rectifier module into a fourth AC signal and output the fourth AC signal to the third motor.

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