CN111775422B - Speed-increasing control method of injection molding machine - Google Patents
Speed-increasing control method of injection molding machine Download PDFInfo
- Publication number
- CN111775422B CN111775422B CN202010546981.5A CN202010546981A CN111775422B CN 111775422 B CN111775422 B CN 111775422B CN 202010546981 A CN202010546981 A CN 202010546981A CN 111775422 B CN111775422 B CN 111775422B
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- Prior art keywords
- injection molding
- speed
- molding machine
- voltage output
- rotation speed
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76595—Velocity
- B29C2945/76605—Velocity rotational movement
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a speed-increasing control method of an injection molding machine, which is characterized by comprising the following steps: (1) within design tolerance, the maximum rotational speed of the drive of the injection molding machine is adjusted to(1+ A)% of the rated rotation speed, wherein A represents the increase of the rotation speed and A is more than 0; (2) presetting the linear percentage of the system output voltage of each action of the injection molding machine, and reducing the linear percentage of the flow voltage output by the system to the linear percentage when the system does not need to be accelerated in normal work
Maintaining the rotation speed of the driver of the injection molding machine at a rated rotation speed; (3) when the speed is increased, the maximum value of the pressure voltage output by the system is adjusted downwards
Description
Technical Field
The invention relates to the field of injection molding machines, in particular to a speed-up control method of an injection molding machine.
Background
In the process of producing products by the injection molding machine, the machine action speed of each stage is of a certain degree, particularly, in the injection molding process of the injection molding machine, the injection speed is closely related to the molding of the products, particularly, for the molding of thin-wall short-period products, the injection speed plays a crucial role in the molding quality and the molding efficiency of the products, the injection speed is high, and the molding quality and the molding efficiency of the products are high.
At present, the injection speed increasing of the injection molding machine mainly comprises the following two modes: one is to enlarge the power system of the injection molding equipment, increase the discharge capacity, control the injection pressure to be unchanged, and improve the injection speed, and the mode has higher cost; the other injection oil cylinder adopted by the injection molding equipment adopts a differential oil circuit design (such as double-rod injection, oil return is supplemented to an injection cavity), the injection pressure is reduced, and the injection oil cylinder is high in cost in such a mode. Therefore, the problem that how to realize the speed increase of the injection molding machine to improve the molding quality and the molding efficiency of injection molding products on the basis of not increasing the equipment cost becomes urgent to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a speed-up control method of an injection molding machine, which can accelerate the action of the injection molding machine to improve the molding quality and the molding efficiency of injection molding products on the basis of not increasing the equipment cost.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a speed increasing control method of an injection molding machine comprises the following steps:
(1) within a design allowable range, adjusting the maximum rotating speed of a driver of the injection molding machine to be (1+ A)% of the rated rotating speed, wherein A represents the amplification of the rotating speed, and A is more than 0;
(2) presetting the linear percentage of the system output voltage of each action of the injection molding machine, and reducing the linear percentage of the flow voltage output by the system to the linear percentage when the system works normally without increasing the speed
Maintaining the rotating speed of a driver of the injection molding machine at a rated rotating speed;
(3) when the speed is increased, the maximum value of the pressure voltage output by the system is adjusted downwards
The linear percentage of the flow voltage output by the system was set to 100%.
Compared with the prior art, the invention has the advantages that: by utilizing the characteristic that the maximum rotating speed of the injection molding machine driver can be improved within a certain range, the rotating speed of the driver is maintained within the range of the rated rotating speed in the stage that the speed is not required to be increased by setting the output voltage of the system, and the speed of the driver can be improved within a short time within a controllable range in the stage that the speed is required to be increased on the premise that the rated power of the driver is not changed, so that the speed is increased on the basis of not increasing any equipment cost, and the forming quality and the forming efficiency of injection molding products can be effectively improved.
Detailed Description
The present invention is described in further detail below with reference to examples.
A speed increasing control method of an injection molding machine comprises the following steps:
(1) within a design allowable range, adjusting the maximum rotating speed of a driver of the injection molding machine to be (1+ A)% of the rated rotating speed, wherein A represents the increase of the rotating speed, and A is more than 0;
(2) the linear percentage of the output voltage of each action system of the injection molding machine is preset, when the injection molding machine works normally without increasing the speed,reducing the linear percentage of the flow voltage output by the system to
Maintaining the actual rotational speed of the injection molding machine driver below the rated rotational speed;
(3) when the speed is increased, the maximum value of the pressure voltage output by the system is adjusted downwards
The linear percentage of the flow voltage output by the system was set to 100%.
The rated rotation speed of the driver of the conventional injection molding machine is usually 2100r/min, in this embodiment, a is 0.2, then in step (1), the maximum rotation speed of the driver of the injection molding machine is adjusted to 120% of the rated rotation speed, that is, the maximum rotation speed of the motor is set to 2520 r/min; the pressure voltage output by the system controls the torque of the motor, the flow voltage of the system controls the rotating speed of the motor, and then the linear percentage of the flow voltage output by the system is reduced to 83% when the system works normally without a speed increasing requirement according to a principle formula P of a servo motor Tn N (wherein P represents the rated power of the motor, Tn represents the rated torque of the motor, and N represents the rated rotating speed of the motor); aiming at the working stage (not limited to the injection stage) with the requirement of speed increase, the maximum value of the output pressure voltage of the system is reduced by 16.7%, the linear percentage of the flow voltage output by the system is set as 100%, and under the condition of ensuring that the rated power of the motor is not changed, the rotating speed of the motor is increased, the speed increase is realized, and the molding quality and the molding efficiency of an injection molding product can be effectively improved.
Claims (1)
1. A speed increasing control method of an injection molding machine is characterized by comprising the following steps:
(1) within a design allowable range, adjusting the maximum rotating speed of a driver of the injection molding machine to be (1+ A)% of the rated rotating speed, wherein A represents the increase of the rotating speed, and A is more than 0;
(2) linear hundred of system output voltage for presetting each action of injection molding machineWhen the system works normally without increasing speed, the linear percentage of the flow voltage output by the system is reduced to
Maintaining the rotation speed of the driver of the injection molding machine at a rated rotation speed;
(3) when the speed is increased, the maximum value of the pressure voltage output by the system is adjusted downwards
The linear percentage of the flow voltage output by the system was set to 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010546981.5A CN111775422B (en) | 2020-06-16 | 2020-06-16 | Speed-increasing control method of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010546981.5A CN111775422B (en) | 2020-06-16 | 2020-06-16 | Speed-increasing control method of injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111775422A CN111775422A (en) | 2020-10-16 |
| CN111775422B true CN111775422B (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010546981.5A Active CN111775422B (en) | 2020-06-16 | 2020-06-16 | Speed-increasing control method of injection molding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN111775422B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1489518A (en) * | 2001-02-07 | 2004-04-14 | ����� | Method for controlling injection process and injection unit |
| CN105772680A (en) * | 2015-01-09 | 2016-07-20 | 东芝机械株式会社 | Injection apparatus, molding apparatus, and molding method |
| CN106382278A (en) * | 2016-10-08 | 2017-02-08 | 广州智光节能有限公司 | Hydraulic system control method and device |
-
2020
- 2020-06-16 CN CN202010546981.5A patent/CN111775422B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1489518A (en) * | 2001-02-07 | 2004-04-14 | ����� | Method for controlling injection process and injection unit |
| CN105772680A (en) * | 2015-01-09 | 2016-07-20 | 东芝机械株式会社 | Injection apparatus, molding apparatus, and molding method |
| CN106382278A (en) * | 2016-10-08 | 2017-02-08 | 广州智光节能有限公司 | Hydraulic system control method and device |
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| Publication number | Publication date |
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| CN111775422A (en) | 2020-10-16 |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 337000 Qingyuan Industrial Park, Anyuan Industrial Park, Anyuan District, Pingxiang City, Jiangxi Province Applicant after: Bole Intelligent Equipment Co.,Ltd. Address before: 315821 Jiangnan export processing trade zone, Beilun District, Ningbo City, Zhejiang Province Applicant before: Bole Intelligent Equipment Co.,Ltd. Address after: 315821 Jiangnan export processing trade zone, Beilun District, Ningbo City, Zhejiang Province Applicant after: Bole Intelligent Equipment Co.,Ltd. Address before: 315821 Jiangnan export processing trade zone, Beilun District, Ningbo City, Zhejiang Province Applicant before: NINGBO SHUANGMA MACHINERY INDUSTRY Co.,Ltd. |
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