An integral rotating mold frame, a lower mold frame rotation control system and a control method

Abstract

The present application relates to the technical field of mold frame equipment, and in particular to an integral rotating mold frame, a lower mold frame rotation control system and a control method; robots on some existing automated production lines require precise angle control to ensure accurate placement of inserts and rapid mold closing operations of the mold frame. Therefore, the existing rotatable mold frames have poor rotation accuracy, which results in certain limitations on their application in such automated production lines. The control system provided by the present application includes a human-machine interaction unit, a control unit and a drive unit. The operator inputs the rotation angle of the lower mold through the human-machine interaction unit, and the control unit calculates the rotation angle of the lower mold frame drive member according to the rotation angle of the lower mold, thereby controlling the rotation of the lower mold frame drive member of the drive unit to achieve the effect of accurately controlling the rotation angle of the lower mold frame.

Description

Technical Field

[0001] The present application relates to the technical field of mold frame equipment, and in particular to an integral rotating mold frame, a lower mold frame rotation control system and a control method. Background Art

[0002] With the development of industrial automation and precision manufacturing technology, the design and functionality of the mold frame, as the supporting mechanism of the mold, have received widespread attention.

[0003] In the existing mold frame design, in order to facilitate the operators to perform operations such as upper and lower mold cleaning and insert placement, many mold frames are designed to be flippable. However, the current mold frame lower mold rotation angle control is not precise enough, resulting in a large deviation in the actual lower mold frame after rotation. Some existing robots on automated production lines require precise angle control to ensure accurate placement of inserts and rapid mold closing operations. Therefore, the existing rotatable mold frames have poor rotation accuracy, which limits their application in such automated production lines. Summary of the invention

[0004] In view of one or more of the problems existing in the prior art, the present application provides a lower mold frame rotation control system in a first aspect, which is used to control the rotation angle of the lower mold frame on a rotating bracket connected thereto, comprising:

[0005] A lower mold frame, including a lower mold frame rotation center, used for connecting with the rotating bracket;

[0006] Human-computer interaction unit, used to input basic data;

[0007] A control unit, connected to the human-machine interaction unit, configured to calculate the rotation angle according to the basic data and output a control signal to the driving unit;

[0008] A driving unit, the driving unit is connected to the lower mold frame and the control unit respectively, and is used to control the rotation of the lower mold frame according to a received control signal;

[0009] Wherein, the driving unit comprises a lower mold frame driving member and a lower mold frame transmission member, the lower mold frame transmission member comprises: a first crank and a first connecting rod, one end of the first crank is connected to the lower mold frame driving member, the other end of the first crank is connected to one end of the first connecting rod, and the other end of the first connecting rod is connected to the lower mold frame; the lower mold frame is driven by the lower mold frame driving member, so as to rotate with the rotation center of the lower mold frame as the axis;

[0010] The basic data includes the preset rotation angle of the lower mold frame drive member Or the lower mold frame rotates to a preset angle ;

[0011] The execution method of calculating the rotation angle according to the basic data includes:

[0012] Calculate intermediate variables;

[0013] When the basic data includes the lower mold frame driving member rotating a preset angle Calculate the corresponding rotation angle of the lower mold frame ;or

[0014] When the basic data includes the preset angle of rotation of the lower mold frame Calculate the corresponding rotation angle of the lower mold frame drive .

[0015] The lower mold frame rotation control system provided by the present application realizes precise control of the rotation angle of the lower mold frame by integrating an advanced human-machine interaction unit and a control unit. The system can automatically calculate and generate corresponding control signals according to the preset rotation angle of the lower mold frame driving member or the preset rotation angle of the lower mold frame input by the operator, and drive the lower mold frame to rotate precisely. This precise control not only improves production efficiency and product quality, but also reduces the need for manual adjustment and reduces the risk of errors and equipment failures caused by improper operation.

[0016] In some embodiments of the present application, the basic data also includes: the zero-position coordinate value (A, B) of the first connecting rod fixed point and the zero-position coordinate value (C, D) of the lower mold frame driving member axis center in the coordinate system established with the lower mold frame rotation center as the origin, as well as the first crank length and the first connecting rod length; by inputting the zero-position coordinate value of the first connecting rod fixed point and the lower mold frame driving member axis center, as well as the first crank and the first connecting rod length, the system can accurately describe the geometric relationship of the lower mold frame transmission mechanism. These data provide a basis for subsequent calculations and ensure the accuracy of the calculations.

[0017] The calculation of intermediate variables includes:

[0018] According to the zero-position coordinate values ​​of the first connecting rod fixing point and the lower mold frame driving member shaft center, the zero-position angle A1 between the straight line determined by the first connecting rod fixing point and the lower mold frame driving member shaft center and the horizontal direction is calculated;

[0019] According to the zero-position coordinate values ​​of the first connecting rod fixing point and the center of the lower mold frame driving member shaft, the zero-position length L1 of the line connecting the first connecting rod fixing point and the center of the lower mold frame driving member shaft is calculated;

[0020] The zero position angle A2 of the angle formed by the straight line determined by the first connecting rod fixing point and the axis center of the lower mold frame driving member and the straight line determined by the connecting shaft center and the axis center of the lower mold frame driving member is calculated according to the zero position length L1, the first connecting rod length and the first crank length;

[0021] According to the zero angle A1 and the zero angle A2, the zero angle A3 between the straight line determined by the axis center of the lower mold frame driving member and the center of the connecting axis and the vertical direction is calculated;

[0022] According to the zero position coordinate value (C, D) of the axis center of the lower mold frame driving member, the length of the first connecting rod and the zero position angle A3, the zero position coordinate value (Middle_Shift_X, Middle_Shift_Y) of the connecting axis center is calculated;

[0023] The zero-position length L3 is calculated based on the zero-position coordinate value of the fixed point of the first connecting rod.

[0024] These detailed geometric parameter inputs and intermediate variable calculations enable the system to adapt to lower mold frame transmission mechanisms of different sizes and structures, enhancing the system's versatility and adaptability. Whether in molds of different sizes or in different production environments, the system can provide precise control, improving production efficiency and product quality.

[0025] In some embodiments of the present application, when the basic data includes the lower mold frame driving member rotating a preset angle Calculate the corresponding rotation angle of the lower mold frame include:

[0026] According to the preset angle of rotation of the lower mold frame drive , the zero position coordinate value of the axis center of the lower mold frame drive member, the length of the first connecting rod, and the zero position angle A3 are used to calculate the rotation angle of the lower mold frame drive member: The instantaneous coordinate value of the rear connecting axis center;

[0027] According to the instantaneous coordinate value of the center of the connecting shaft, the instantaneous distance L2 from the center of the connecting shaft to the rotation center of the lower mold frame is calculated;

[0028] According to the zero length L3, the instantaneous distance L2, and the length of the first crank, the instantaneous angle A5 formed by the straight line determined by the fixed point of the first connecting rod and the rotation center of the lower mold frame and the straight line determined by the center of the connecting shaft and the rotation center of the lower mold frame is calculated;

[0029] According to the instantaneous coordinate value of the center of the connecting shaft, the instantaneous angle A6 of the angle between the straight line determined by the center of the connecting shaft and the rotation center of the lower mold frame and the horizontal direction is calculated;

[0030] The preset rotation angle of the lower mold frame drive is obtained according to the instantaneous angle A5, instantaneous angle A6 and the zero coordinate value of the first connecting rod fixed point. The rotation angle of the lower mold frame .

[0031] Through the above detailed geometric relationship modeling and angle calculation, the system can more accurately determine the actual rotation angle of the lower mold frame after the lower mold frame drive member rotates the preset angle. This precise control reduces the operational deviation caused by geometric errors and ensures the high accuracy of the lower mold frame rotation.

[0032] In some embodiments of the present application, when the basic data includes a preset angle for rotating the lower mold frame Calculate the corresponding rotation angle of the lower mold frame drive include:

[0033] According to the preset angle of rotation of the lower mold frame The instantaneous angle A1_a between the straight line determined by the fixed point of the rear first link and the axis center of the lower mold frame drive member and the horizontal direction and the preset rotation angle of the lower mold frame The instantaneous angle A2_a formed by the straight line determined by the fixed point of the rear first connecting rod and the axis center of the lower mold frame driving member and the straight line determined by the center of the connecting shaft and the axis center of the lower mold frame driving member is calculated to obtain the preset rotation angle of the lower mold frame. The instantaneous angle A3_a between the straight line determined by the axis center of the rear lower mold frame driving member and the center of the connecting axis and the vertical direction;

[0034] According to the preset angle of rotation of the lower mold frame The instantaneous angle A3_a and the zero angle A3 between the straight line determined by the axis center of the rear lower mold frame drive member and the center of the connecting axis and the vertical direction are used to calculate the preset rotation angle of the lower mold frame. Rotation angle of rear lower mold frame drive .

[0035] In some embodiments of the present application, the process of calculating the instantaneous angle A2_a is as follows:

[0036] According to the zero position coordinate value of the first connecting rod fixed point, the zero position angle A7 of the angle between the straight line formed by the first connecting rod fixed point and the rotation center of the lower mold frame and the horizontal direction is calculated;

[0037] According to the zero angle A7 and the preset angle of the lower mold frame rotation , calculate the preset rotation angle of the lower mold frame The instantaneous angle A7_a between the straight line formed by the fixed point of the rear first link and the rotation center of the lower mold frame and the horizontal direction;

[0038] According to the zero length L3 and the instantaneous angle A7_a, the preset rotation angle of the lower mold frame is calculated. The instantaneous coordinate value of the fixed point of the first rear link (Middle_Shift_X_a, Middle_Shift_Y_a);

[0039] According to the preset angle of rotation of the lower mold frame The preset rotation angle of the lower mold frame is calculated by the instantaneous coordinate value of the fixed point of the rear first connecting rod and the zero position coordinate value of the axis center of the lower mold frame driving member. The instantaneous length L1_a of the line connecting the fixed point of the rear first connecting rod and the center of the shaft of the lower mold frame driving member;

[0040] According to the instantaneous length L1_a, the length of the first connecting rod, and the length of the first crank, the preset rotation angle of the lower mold frame is calculated. The instantaneous angle A2_a formed by the straight line determined by the fixed point of the rear first connecting rod and the center of the lower mold frame driving member axis and the straight line determined by the center of the connecting shaft and the center of the lower mold frame driving member axis.

[0041] In some embodiments of the present application, the preset rotation angle of the lower mold frame is calculated by the following formula: The instantaneous angle A1_a between the straight line determined by the fixed point of the first rear link and the axis center of the lower mold frame drive and the horizontal direction:

[0042]

[0043] Among them, π is the ratio of a circle to its circumference.

[0044] A second aspect of the present application provides a method for controlling the rotation of a lower mold frame, comprising:

[0045] Input basic data into the human-machine interaction unit, the basic data including the preset angle of rotation of the lower mold frame drive member Or the lower mold frame rotates to a preset angle ;

[0046] Calculate the rotation angle and output the control signal;

[0047] Control the rotation of the lower mold base;

[0048] Wherein, the calculation of the rotation angle comprises:

[0049] Calculate intermediate variables;

[0050] When the basic data includes the lower mold frame driving member rotating a preset angle Calculate the corresponding rotation angle of the lower mold frame ;or

[0051] When the basic data is a preset angle for the lower mold frame to rotate Calculate the corresponding rotation angle of the lower mold frame drive .

[0052] By calculating intermediate variables and detailed geometric relationship modeling, the system can accurately calculate the rotation angle of the lower mold frame corresponding to the preset rotation angle of the lower mold frame driver, or the rotation angle of the lower mold frame driver corresponding to the preset rotation angle of the lower mold frame. This high-precision control reduces the operational deviation caused by geometric errors and ensures the accuracy of the lower mold frame rotation. At the same time, automated calculation and control signal generation reduce dependence on human intervention, reduce errors and equipment failure risks caused by improper human operation, and improve production efficiency and product quality.

[0053] In some embodiments of the present application, the basic data further includes: the zero-position coordinate value (A, B) of the first connecting rod fixed point and the zero-position coordinate value (C, D) of the center of the shaft of the lower mold frame driving member in the coordinate system established with the rotation center of the lower mold frame as the origin, as well as the first crank length and the first connecting rod length;

[0054] The calculation of intermediate variables includes:

[0055] According to the zero-position coordinate values ​​of the first connecting rod fixing point and the lower mold frame driving member shaft center, the zero-position angle A1 between the straight line determined by the first connecting rod fixing point and the lower mold frame driving member shaft center and the horizontal direction is calculated;

[0056] According to the zero-position coordinate values ​​of the first connecting rod fixing point and the center of the lower mold frame driving member shaft, the zero-position length L1 of the line connecting the first connecting rod fixing point and the center of the lower mold frame driving member shaft is calculated;

[0057] The zero position angle A2 of the angle formed by the straight line determined by the first connecting rod fixing point and the axis center of the lower mold frame driving member and the straight line determined by the connecting shaft center and the axis center of the lower mold frame driving member is calculated according to the zero position length L1, the first connecting rod length and the first crank length;

[0058] According to the zero angle A1 and the zero angle A2, the zero angle A3 between the straight line determined by the axis center of the lower mold frame driving member and the center of the connecting axis and the vertical direction is calculated;

[0059] According to the zero position coordinate value (C, D) of the axis center of the lower mold frame driving member, the length of the first connecting rod and the zero position angle A3, the zero position coordinate value (Middle_Shift_X, Middle_Shift_Y) of the connecting axis center is calculated;

[0060] The zero-position length L3 is calculated based on the zero-position coordinate value of the fixed point of the first connecting rod.

[0061] In some embodiments of the present application, when the basic data includes the lower mold frame driving member rotating a preset angle Calculate the corresponding rotation angle of the lower mold frame include:

[0062] According to the preset angle of rotation of the lower mold frame drive , the zero position coordinate value of the axis center of the lower mold frame drive member, the length of the first connecting rod, and the zero position angle A3 are used to calculate the rotation angle of the lower mold frame drive member: The instantaneous coordinate value of the rear connecting axis center;

[0063] According to the instantaneous coordinate value of the center of the connecting shaft, the instantaneous distance L2 from the center of the connecting shaft to the rotation center of the lower mold frame is calculated;

[0064] According to the zero length L3, the instantaneous distance L2, and the length of the first crank, the instantaneous angle A5 formed by the straight line determined by the fixed point of the first connecting rod and the rotation center of the lower mold frame and the straight line determined by the center of the connecting shaft and the rotation center of the lower mold frame is calculated;

[0065] According to the instantaneous coordinate value of the center of the connecting shaft, the instantaneous angle A6 of the angle between the straight line determined by the center of the connecting shaft and the rotation center of the lower mold frame and the horizontal direction is calculated;

[0066] The preset rotation angle of the lower mold frame drive is obtained according to the instantaneous angle A5, instantaneous angle A6 and the zero coordinate value of the first connecting rod fixed point. The rotation angle of the lower mold frame .

[0067] In some embodiments of the present application, when the basic data includes a preset angle for rotating the lower mold frame Calculate the corresponding rotation angle of the lower mold frame drive include:

[0068] According to the preset angle of rotation of the lower mold frame The instantaneous angle A1_a between the straight line determined by the fixed point of the rear first link and the axis center of the lower mold frame drive member and the horizontal direction and the preset rotation angle of the lower mold frame The instantaneous angle A2_a formed by the straight line determined by the fixed point of the rear first connecting rod and the axis center of the lower mold frame driving member and the straight line determined by the center of the connecting shaft and the axis center of the lower mold frame driving member is calculated to obtain the preset rotation angle of the lower mold frame. The instantaneous angle A3_a between the straight line determined by the axis center of the rear lower mold frame driving member and the center of the connecting axis and the vertical direction;

[0069] According to the preset angle of rotation of the lower mold frame The instantaneous angle A3_a and the zero angle A3 between the straight line determined by the axis center of the rear lower mold frame drive member and the center of the connecting axis and the vertical direction are used to calculate the preset rotation angle of the lower mold frame. Rotation angle of rear lower mold frame drive .

[0070] In some embodiments of the present application, the process of calculating the instantaneous angle A2_a is as follows:

[0071] According to the zero position coordinate value of the first connecting rod fixed point, the zero position angle A7 of the angle between the straight line formed by the first connecting rod fixed point and the rotation center of the lower mold frame and the horizontal direction is calculated;

[0072] According to the zero angle A7 and the preset angle of the lower mold frame rotation , calculate the preset rotation angle of the lower mold frame The instantaneous angle A7_a between the straight line formed by the fixed point of the rear first link and the rotation center of the lower mold frame and the horizontal direction;

[0073] According to the zero length L3 and the instantaneous angle A7_a, the preset rotation angle of the lower mold frame is calculated. The instantaneous coordinate value of the fixed point of the first rear link (Middle_Shift_X_a, Middle_Shift_Y_a);

[0074] According to the preset angle of rotation of the lower mold frame The preset rotation angle of the lower mold frame is calculated by the instantaneous coordinate value of the fixed point of the rear first connecting rod and the zero position coordinate value of the axis center of the lower mold frame driving member. The instantaneous length L1_a of the line connecting the fixed point of the rear first connecting rod and the center of the shaft of the lower mold frame driving member;

[0075] According to the instantaneous length L1_a, the length of the first connecting rod, and the length of the first crank, the preset rotation angle of the lower mold frame is calculated. The instantaneous angle A2_a formed by the straight line determined by the fixed point of the rear first connecting rod and the center of the lower mold frame driving member axis and the straight line determined by the center of the connecting shaft and the center of the lower mold frame driving member axis.

[0076] In some embodiments of the present application, the preset rotation angle of the lower mold frame is calculated by the following formula: The instantaneous angle A1_a between the straight line determined by the fixed point of the first rear link and the axis center of the lower mold frame drive and the horizontal direction:

[0077]

[0078] Among them, π is the ratio of a circle to its circumference.

[0079] A third aspect of the present application provides an integral rotating mold frame, including the system in the above embodiment, and further comprising:

[0080] Bottom frame;

[0081] A rotating bracket, comprising a bracket rotating assembly, a bracket rotating center and a bracket driving member, wherein the rotating bracket is rotatably connected to the bottom frame at the bracket rotating center through the bracket rotating assembly, and the rotating bracket is driven by the bracket driving member to rotate around the bracket rotating center as an axis;

[0082] The upper mold frame includes an upper mold frame rotating assembly, an upper mold frame rotation center and an upper mold frame driving member. The upper mold frame is rotatably connected to the rotating bracket at the upper mold frame rotation center through the upper mold frame rotating assembly. The upper mold frame is driven by the upper mold frame driving member to rotate around the upper mold frame rotation center as the axis.

[0083] The overall rotating mold frame uses a multi-stage rotating design of the bottom frame, rotating bracket, lower mold frame and upper mold frame, allowing the operator to easily adjust the angle of the mold. This multi-stage rotation function not only reduces repetitive movements such as bending and stretching arms, improving operator comfort, but also makes mold cleaning and insert placement more convenient, reducing operation time and steps, and improving production efficiency.

[0084] In some embodiments of the present application, the bracket driving component is disposed on the bottom frame, and the bracket driving component is connected to the rotating bracket through a bracket transmission component to drive the rotating bracket to rotate.

[0085] In some embodiments of the present application, the support transmission member includes:

[0086] A driving gear driven by an output shaft of the support driving member;

[0087] An arc-shaped rack meshing with the driving gear, wherein the arc-shaped rack is fixedly connected to the rotating bracket.

[0088] In some embodiments of the present application, the arc-shaped rack is provided with a limiter, and the limiter is used to limit the movement range of the arc-shaped rack to prevent excessive rotation.

[0089] In some embodiments of the present application, the lower mold frame driving member is disposed on the rotating bracket, and the lower mold frame driving member is connected to the lower mold frame through a lower mold frame transmission member to drive the lower mold frame to rotate.

[0090] In some embodiments of the present application, the upper mold frame driving member is disposed on the upper mold frame, and the upper mold frame driving member is connected to the rotating bracket through an upper mold frame transmission member to drive the upper mold frame to rotate.

[0091] In some embodiments of the present application, the upper mold frame transmission member includes:

[0092] a second crank, one end of which is connected to the upper mold frame driving member;

[0093] A second connecting rod, one end of the second connecting rod is connected to the other end of the second crank, and the other end of the second connecting rod is connected to the rotating bracket.

[0094] One or more of the above embodiments of the present application have at least the following beneficial effects:

[0095] The integrated rotating mold frame provided in the present application has a multi-stage rotation function through the rotating bracket, the lower mold frame and the upper mold frame, so that the operator can easily adjust the angle of the mold, reduce repetitive movements such as bending over and stretching arms, and improve operating comfort; the multi-stage rotation function makes mold cleaning and insert placement more convenient, reduces operation time and steps, and improves production efficiency; at the same time, it reduces the situation where operators maintain bad postures for a long time, reduces the incidence of occupational diseases, and improves the safety of the working environment.

[0096] The lower mold frame rotation control system provided by the present application significantly improves the accuracy and convenience of adjusting the mold frame for placing molds in the field of industrial automation by integrating advanced human-computer interaction interface and precise calculation program. The system can automatically calculate and control the rotation angle of the lower mold frame drive member to achieve precise positioning of the lower mold frame, thereby reducing the need for manual adjustment and reducing the risk of errors and equipment failures caused by improper operation.

[0097] In addition, the system enhances the flexibility and adaptability of the production line, enabling it to work seamlessly with a variety of automated equipment such as robotic feeding systems, improving production efficiency and product consistency. By reducing manual intervention, the system also reduces labor intensity and workplace safety risks, while reducing long-term maintenance costs and improving overall equipment stability and reliability. In summary, this application not only improves the level of automation in the production process, but also brings the dual advantages of cost-effectiveness and operational safety to enterprises, and is a reflection of the advancement of industrial automation technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0098] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0099] Figure 1 is a structural schematic diagram of a lower mold frame rotation control system provided by an exemplary embodiment of the present application;

[0100] Figure 2 It is a schematic diagram of the lower mold frame structure of an integral mold frame provided by an exemplary embodiment of the present application;

[0101] Figure 3 It is a simple abstract line drawing of the rotation structure of the lower mold frame of the integral rotating mold frame provided by an exemplary embodiment of the present application;

[0102] Figure 4 It is a schematic diagram of the overall rotating mold frame structure provided by an exemplary embodiment of the present application;

[0103] Figure 5 It is a schematic diagram of the bottom frame structure of an integral rotating mold frame provided by an exemplary embodiment of the present application;

[0104] Figure 6 It is a schematic diagram of the assembly structure of a rotating bracket, an upper mold frame and a lower mold frame in one state of an integral rotating mold frame provided by an exemplary embodiment of the present application;

[0105] Figure 7 is a schematic diagram of the overall rotating mold frame structure from another angle provided by an exemplary embodiment of the present application;

[0106] Figure 8 It is a schematic diagram of an upper mold frame structure of an integral mold frame in one direction provided by an exemplary embodiment of the present application;

[0107] Fig. 9 It is a schematic diagram of an upper mold frame structure of an integral mold frame in another direction provided by an exemplary embodiment of the present application;

[0108] Fig.10 It is a schematic diagram of the assembly structure of the rotating bracket, the upper mold frame and the lower mold frame in another state of the integral mold frame provided by an exemplary embodiment of the present application;

[0109] Fig.11 yes Fig.10 Section view along section line AA;

[0110] Fig.12 yes Fig.11 Enlarged view of point B in the middle.

[0111] Reference numerals:

[0112] 100. Human-computer interaction unit;

[0113] 200. control unit;

[0114] 300, drive unit;

[0115] 1. Bottom frame;

[0116] 2. Rotating bracket; 21. Bracket rotating assembly; 211. First rotating shaft; 212. First bearing member; 22. Bracket rotation center; 23. Bracket driving member; 24. Bracket transmission member; 241. Driving gear; 242. Arc rack; 2421. Limiting member; 25. Lifting slide; 26. Guide rail;

[0117] 3. Lower mold frame; 31. Lower mold frame rotating assembly; 312. Second bearing member; 32. Lower mold frame rotation center; 33. Lower mold frame driving member; 33', lower mold frame driving member axis center; 34. Lower mold frame transmission member; 34', lower mold frame transmission member connecting axis center; 341. First crank; 342. First connecting rod; 342', first connecting rod fixing point;

[0118] 4. Upper mold frame; 41. Upper mold frame rotating assembly; 411. Third rotating shaft; 412. Third bearing member; 42. Upper mold frame rotation center; 43. Upper mold frame driving member; 44. Upper mold frame transmission member; 441. Second crank; 442. Second connecting rod. DETAILED DESCRIPTION

[0119] Embodiments of the present application will be described in detail below, examples of which are shown in the accompanying drawings, and the components of the embodiments of the present application generally described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application claimed for protection, but merely represents selected embodiments of the present application.

[0120] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0121] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0122] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0123] The following will be combined Figure 1-Figure 12 The technical solution of the present application is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Figure 1 is a schematic diagram of the structure of a lower mold frame rotation control system provided by an exemplary embodiment of the present application; Figure 2 Shown is a schematic diagram of the lower mold frame structure of the overall mold frame provided in one embodiment of the present application.

[0124] See also Figure 1 and Figure 2, a lower mold frame rotation control system provided in the first aspect of the present application is used to control the rotation angle of the lower mold frame 3 on the rotating bracket connected thereto, comprising: a human-machine interaction unit 100, a control unit 200, a driving unit 300 and the lower mold frame 3;

[0125] The human-machine interaction unit 100 includes a display. The human-machine interaction unit 100 has a display function, which can display the system status, operation menu and input interface; the human-machine interaction unit 100 has an input function, which can allow the operator to input the required lower mold frame rotation angle, lower mold frame drive member rotation angle or other related parameters; in some embodiments of the present application, the human-machine interaction unit 100 also includes control buttons such as start, stop, and emergency stop, which are used to directly control the rotation action of the lower mold frame.

[0126] The human-machine interaction unit 100 is connected to the control unit 200 via a bus, and the human-machine interaction unit 100 has a built-in communication interface, such as Ethernet, serial port or wireless module, to achieve data exchange with the control unit 200;

[0127] The control unit 200 is connected to the driving unit 300 via a bus. The control unit 200 can receive basic data input by the human-machine interaction unit 100. The processor inside the control unit 200 can calculate the rotation angle of the lower mold frame driving member 33 or the lower mold frame 3 according to the input basic data. The control unit 200 can generate a control signal and transmit it to the driving unit 300.

[0128] The control unit 200 contains a memory inside, and the memory stores a computer program for calculating the rotation angle according to the input basic data.

[0129] The drive unit 300 is connected to the lower mold frame 3, and can receive the control signal from the control unit 200 and convert it into an actual action that can drive the lower mold frame drive member 33 to move. The drive unit 300 may include a motor controller, a power management circuit, and any necessary sensors to monitor the status during the driving process.

[0130] See also Figure 2 and Figure 6 The lower mold frame 3 includes a lower mold frame rotation center 32 for connecting with the rotating bracket 2.

[0131] See also Figure 2 The driving unit 300 includes a lower mold frame driving member 33 and a lower mold frame transmission member 34. The lower mold frame transmission member 34 includes: a first crank 341 and a first connecting rod 342. One end of the first crank 341 is connected to the lower mold frame driving member 33, and the other end of the first crank 341 is connected to one end of the first connecting rod 342, and the other end of the first connecting rod 342 is connected to the lower mold frame 34; the lower mold frame 3 is driven by the lower mold frame driving member 33, so as to rotate around the lower mold frame rotation center 32 as the axis.

[0132] When the driving unit 300 receives the control signal from the control unit 200, the lower mold frame driving member 33 is activated and starts to rotate. Since the first crank 341 is movably connected to the lower mold frame driving member 33, it is driven to rotate accordingly. The first connecting rod 342 is also movably connected to the first crank 341, so when the first crank 341 rotates, the first connecting rod 342 also rotates accordingly. One end of the lower mold frame 3 is movably connected to the first connecting rod 342, and the other end is rotatably set on the fixed mold frame through the lower mold frame rotation center 32. Therefore, when the first connecting rod 342 rotates, the lower mold frame 3 rotates with the lower mold frame rotation center 32 as the axis, thereby realizing the rotation of the lower mold frame 3.

[0133] The lower mold frame driving member 33 can be a power member such as a motor.

[0134] The basic data input by the operator through the human-machine interaction unit 100 includes: the lower mold frame driving member rotates a preset angle Or the lower mold frame rotates to a preset angle .

[0135] In some embodiments, the basic data input by the operator through the human-machine interaction unit 100 also includes: the zero-position coordinate value (A, B) of the first connecting rod fixed point 342' and the zero-position coordinate value (C, D) of the lower mold frame driving member axis center 33' in the coordinate system with the lower mold frame rotation center 32 as the origin, as well as the first crank length L4 and the first connecting rod length L5, and the possible desired rotation angle of the lower mold frame driving member , Desired rotation angle of the lower mold frame or other relevant data.

[0136] The first connecting rod fixing point 342 ′ is the connection point between the first connecting rod 342 and the lower mold frame 3 .

[0137] In some embodiments of the present application, in order to facilitate the intuitive expression of the angle calculation method, Figure 2 The initial state of the lower mold frame structure shown (i.e., the state where the lower mold frame is placed horizontally) is abstracted into Figure 3 The structure shown, see Figure 3 , the execution method of calculating the rotation angle according to the basic data includes:

[0138] S100, calculating intermediate variables according to basic data, the intermediate variables including zero position angle and zero position length, this step includes:

[0139] According to the zero position coordinate value (A, B) of the first connecting rod fixed point 342' and the zero position coordinate value (C, D) of the lower mold frame driving member shaft center 33', the zero position X coordinate value difference Swing_Motor_X and the zero position Y coordinate value difference Swing_Motor_Y of the first connecting rod fixed point and the lower mold frame driving member shaft center are calculated, and the formula used is as follows:

[0140]

[0141]

[0142] According to the zero position coordinate values ​​of the first connecting rod fixing point 342' and the lower mold frame driving member axis center 33', the zero position angle A1 between the straight line determined by the first connecting rod fixing point 342' and the lower mold frame driving member axis center 33' and the horizontal direction is calculated. The formula used in this step is as follows:

[0143]

[0144] Among them, π is the ratio of a circle to its circumference.

[0145] According to the zero-position coordinate values ​​of the first connecting rod fixing point 342' and the lower mold frame driving member shaft center 33', the zero-position length L1 of the line connecting the first connecting rod fixing point 342' and the lower mold frame driving member shaft center 33' is calculated. The formula used in this step is as follows:

[0146]

[0147] The zero position angle A2 of the angle formed by the straight line determined by the first connecting rod fixing point 342' and the lower mold frame driving member shaft center 33' and the straight line determined by the lower mold frame transmission member connecting shaft center 34' and the lower mold frame driving member shaft center 33' is calculated according to the zero position length L1, the first connecting rod length L5 and the first crank length L4. The formula used in this step is as follows:

[0148]

[0149] The center 34 ′ of the lower mold frame transmission member connecting shaft is the connection point between the first crank 341 and the first connecting rod 342 .

[0150] According to the zero angle A1 and the zero angle A2, the zero angle A3 between the straight line determined by the axis center 33' of the lower mold frame driving member and the center of the connecting axis and the vertical direction is calculated. The formula used in this step is as follows:

[0151]

[0152] According to the zero position coordinate value (C, D) of the lower mold frame drive shaft center 33', the first connecting rod length L5 and the zero position angle A3, the zero position coordinate value (Middle_Shift_X, Middle_Shift_Y) of the lower mold frame transmission member connecting shaft center 34' is calculated. The formula used in this step is as follows:

[0153]

[0154]

[0155] According to the zero position coordinate value (A, B) of the first connecting rod fixed point 342', the zero position length L3 is calculated. The formula used in this step is as follows:

[0156]

[0157] When the input basic data includes the preset angle of rotation of the mold frame drive When step S100 is followed by step S200, the corresponding lower mold frame rotation angle is calculated according to the basic data and the intermediate variables. , the steps include:

[0158] According to the preset angle of rotation of the lower mold frame drive , the zero position coordinate value (C, D) of the axis center 33' of the lower mold frame driving member, the length L5 of the first connecting rod, and the zero position angle A3 are calculated to obtain the preset rotation angle of the lower mold frame driving member 33 The instantaneous coordinate value of the center 34' of the rear lower mold frame transmission member connecting shaft (Value[1], Value[0]). The formula used in this step is as follows:

[0159]

[0160]

[0161] According to the instantaneous coordinate value (Value[1], Value[0]) of the center 34' of the lower mold frame transmission member connecting shaft, the instantaneous distance L2 from the center 34' of the lower mold frame transmission member connecting shaft to the lower mold frame rotation center 32 is calculated. The formula used in this step is as follows:

[0162]

[0163] According to the zero length L3, the instantaneous distance L2, and the first crank length L4, the instantaneous angle A5 formed by the straight line determined by the first connecting rod fixed point 342' and the lower mold frame rotation center 32 and the straight line determined by the lower mold frame transmission member connecting shaft center 34' and the lower mold frame rotation center 32 is calculated. The formula used in this step is as follows:

[0164]

[0165] According to the instantaneous coordinate value (Value[1], Value[0]) of the center 34' of the lower mold frame transmission member connecting shaft, the instantaneous angle A6 of the angle between the straight line determined by the center 34' of the lower mold frame transmission member connecting shaft and the lower mold frame rotation center 32 and the horizontal direction is calculated. The formula used in this step is as follows:

[0166]

[0167] The preset rotation angle of the lower mold frame driving member is obtained according to the instantaneous angle A5, the instantaneous angle A6, and the zero position coordinate value (A, B) of the first connecting rod fixed point 342'. Rear lower mold frame rotation angle , the formula used in this step is as follows:

[0168]

[0169] The operator can input the desired rotation angle of the lower mold frame drive member through the human-machine interaction unit 100 through the control system and calculation method. The control unit 200 uses the above calculation method to calculate the final rotation angle of the lower mold frame after the lower mold frame driving member 33 rotates the angle according to the input basic data. At this time, the calculated rotation angle of the lower mold frame can be fed back to the operator through the human-machine interaction interface 100, and the lower mold frame driving member can also be controlled to rotate to a preset angle. , or it can also perform new calculations based on user instructions.

[0170] When the input basic data includes the preset angle of rotation of the lower mold frame When step S100 is followed by step S200', the corresponding rotation angle of the lower mold frame driving member is calculated according to the basic data and the intermediate variable. , the steps include:

[0171] According to the zero position coordinate value (A, B) of the first connecting rod fixing point 342', the zero position angle A7 of the angle between the straight line formed by the first connecting rod fixing point 342' and the lower mold frame rotation center 32 and the horizontal direction is calculated. The formula used in this step is as follows:

[0172]

[0173] According to the zero angle A7 and the preset angle of the lower mold frame rotation , calculate the preset rotation angle of the lower mold frame The instantaneous angle A7_a between the straight line formed by the rear first link fixing point 342' and the lower mold frame rotation center 32 and the horizontal direction, the formula used in this step is as follows:

[0174]

[0175] According to the zero length L3 and the instantaneous angle A7_a, the preset rotation angle of the lower mold frame is calculated. The instantaneous coordinate value (Middle_Shift_X_a, Middle_Shift_Y_a) of the rear first link fixed point 342' is as follows:

[0176]

[0177]

[0178] According to the preset angle of rotation of the lower mold frame The preset rotation angle of the lower mold frame is calculated by the instantaneous coordinate value (Middle_Shift_X_a, Middle_Shift_Y_a) of the fixed point 342' of the rear first connecting rod and the zero position coordinate value (C, D) of the axis center 33' of the lower mold frame driving member. The instantaneous length L1_a of the line connecting the rear first connecting rod fixing point 342' and the lower mold frame driving member axis center 33', the formula used in this step is as follows:

[0179]

[0180] According to the instantaneous length L1_a, the first connecting rod length L5, and the first crank length L4, the preset rotation angle of the lower mold frame is calculated. The instantaneous angle A2_a formed by the straight line determined by the rear first connecting rod fixing point 342' and the lower mold frame driving member axis center 33' and the straight line determined by the lower mold frame transmission member connecting axis center 34' and the lower mold frame driving member axis center 33' is as follows:

[0181]

[0182] The preset rotation angle of the lower mold frame is calculated by the following formula The instantaneous angle A1_a between the straight line defined by the rear first connecting rod fixing point 342' and the lower mold frame driving member axis center 33' and the horizontal direction is:

[0183]

[0184] According to the preset angle of rotation of the lower mold frame The instantaneous angle A1_a between the straight line determined by the rear first connecting rod fixing point 342' and the lower mold frame driving member axis center 33' and the horizontal direction and the preset rotation angle of the lower mold frame are The preset rotation angle of the lower mold frame is calculated by the instantaneous angle A2_a formed by the straight line determined by the fixed point 342' of the rear first connecting rod and the axis center 33' of the lower mold frame driving member and the straight line determined by the axis center 34' of the lower mold frame transmission member and the axis center 33' of the lower mold frame driving member. The instantaneous angle A3_a between the straight line determined by the axis center 33' of the rear lower mold frame driving member and the axis center 34' of the lower mold frame transmission member and the vertical direction, the formula used in this step is as follows:

[0185]

[0186] According to the preset angle of rotation of the lower mold frame The instantaneous angle A3_a and the zero angle A3 between the straight line determined by the axis center 33' of the rear lower mold frame driving member and the axis center 34' of the lower mold frame transmission member and the vertical direction are calculated to obtain the preset rotation angle of the lower mold frame. The rotation angle of the rear lower mold frame drive is , the formula used in this step is as follows:

[0187]

[0188] The operator can input the preset angle of rotation of the lower mold frame through the human-machine interaction unit 100 through the control system and calculation method. The control unit 200 uses the above calculation method to calculate the angle of rotation of the lower mold frame driving member to achieve the desired lower mold frame rotation angle according to the input basic data. , and controls the lower mold frame drive member 33 according to the calculated angle Make a rotation.

[0189] In some embodiments of the present application, the memory inside the control unit 200 stores a computer program to implement the above method, and the computer program is as follows:

[0190] REGION Init

[0191] #tPI := 3.1415926;

[0192] END_REGION

[0193] REGION Common data

[0194] #tPlateValue.A := 960

[0195] #tPlateValue.B := 422

[0196] #tPlateValue.C := 826

[0197] #tPlateValue.D := 386

[0198] #tPlateValue.L4 := 260

[0199] #tPlateValue.L5 :=190

[0200] #tPlateValue.Swing_Motor_X := #tPlateValue.A-#tPlateValue.C;

[0201] #tPlateValue.Swing_Motor_Y := #tPlateValue.B- #tPlateValue.D;

[0202] #tPlateValue.A1 := ATAN(#tPlateValue.Swing_Motor_Y / #tPlateValue.Swing_Motor_X) * 180.0 / #tPI;

[0203] #tPlateValue.L1 :=SQRT(#tPlateValue.Swing_Motor_X*#tPlateValue.Swing_Motor_X+#tPlateValue.Swing_Motor_Y * #tPlateValue.Swing_Motor_Y);

[0204] #tPlateValue.A2 := ACOS((#tPlateValue.L1 * #tPlateValue.L1 +#tPlateValue.L5 *#tPlateValue.L5 – #tPlateValue.L4 *#tPlateValue.L4) / (2.0 *#tPlateValue.L1 * #tPlateValue.L5)) * 180.0 / #tPI;

[0205] #tPlateValue.A3 := 90.0 - #tPlateValue.A2 + #tPlateValue.A1;

[0206] #tPlateValue.Middle_Shift_X := #tPlateValue.C + #tPlateValue.L5* SIN(#tPlateValue.A3 * #tPI / 180.0);

[0207] #tPlateValue.Middle_Shift_Y := -#tPlateValue.L5 * COS(#tPlateValue.A3* #tPI / 180.0) + #tPlateValue.D;

[0208] #tPlateValue.L3 := SQRT(#tPlateValue.A * #tPlateValue.A + #tPlateValue.B * #tPlateValue.B);

[0209] END_REGION

[0210] REGION Motor -> Plate / / Convert the preset rotation angle of the lower mold frame drive to the lower mold frame rotation angle and set it as the preset rotation angle of the lower mold frame drive #IN_Degree_Shift

[0211] #tPlateValue.Value[0] := #tPlateValue.D – #tPlateValue.L5 * COS((#tPlateValue.A3 + #IN_Degree_Shift) * #tPI / 180.0);

[0212] #tPlateValue.Value[1] := #tPlateValue.C + #tPlateValue.L5 * SIN((#tPlateValue.A3 + #IN_Degree_Shift) * #tPI / 180.0);

[0213] #tPlateValue.L2:=SQRT(#tPlateValue.Value[1]*#tPlateValue.Value[1]+#tPlateValue.Value[0]*#tPlateValue.Value[0]);

[0214] #tPlateValue.A5 := ACOS((#tPlateValue.L3*#tPlateValue.L3 + #tPlateValue.L2* #tPlateValue.L2 – #tPlateValue.L4 * #tPlateValue.L4) / (2.0 *#tPlateValue.L2 * #tPlateValue.L3 )) * 180.0 / #tPI;

[0215] #tPlateValue.A6 := ATAN( #tPlateValue.Value[0] / #tPlateValue.Value[1]) * 180.0 / #tPI;

[0216] #Out_Degree_Plate := #tPlateValue.A6 + #tPlateValue.A5 - ATAN(#tPlateValue.B / #tPlateValue.A) * 180.0 / #tPI;

[0217] END_REGION

[0218] REGION Plate -> Motor / / Convert the preset angle of rotation of the lower mold frame to the rotation angle of the lower mold frame drive component and set it as the preset angle of rotation of the lower mold frame #IN_Degree_Plate

[0219] #tPlateValue.A7 := ATAN(#tPlateValue.B / #tPlateValue.A) * 180.0 / #tPI;

[0220] #tPlateValue.A7_a := #tPlateValue.A7 + #IN_Degree_Plate;

[0221] #tPlateValue.Middle_Shift_X_a := #tPlateValue.L3 * COS(#tPlateValue.A7_a * #tPI / 180.0);

[0222] #tPlateValue.Middle_Shift_Y_a := #tPlateValue.L3 * SIN(#tPlateValue.A7_a * #tPI / 180.0);

[0223] #tPlateValue.L1_a:=SQRT((#tPlateValue.Middle_Shift_X_a-#tPlateValue.C) * (#tPlateValue.Middle_Shift_X_a - #tPlateValue.C) + (#tPlateValue.Middle_Shift_Y_a - #tPlateValue.D) * (#tPlateValue.Middle_Shift_Y_a - #tPlateValue.D));

[0224] #tPlateValue.A2_a := ACOS((#tPlateValue.L1_a * #tPlateValue.L1_a + #tPlateValue.L5 *#tPlateValue. L5 – #tPlateValue.L4 * #tPlateValue.L4) / (2.0* #tPlateValue.L1_a * #tPlateValue.L5)) * 180.0 / #tPI;

[0225] IF ATAN((#tPlateValue.Middle_Shift_Y_a-#tPlateValue.D) / (#tPlateValue.Middle_Shift_X_a - #tPlateValue.C)) * 180.0 / #tPI>= 0.0 THEN

[0226] #tPlateValue.A1_a:=ATAN((#tPlateValue.Middle_Shift_Y_a-#tPlateValue.D) / (#tPlateValue.Middle_Shift_X_a - #tPlateValue.C)) * 180 / #tPI;

[0227] ELSE

[0228] #tPlateValue.A1_a := 180.0 + ATAN((#tPlateValue.Middle_Shift_Y_a - #tPlateValue.D) / (#tPlateValue.Middle_Shift_X_a - #tPlateValue.C)) * 180.0 / #tPI;

[0229] END_IF;

[0230] #tPlateValue.A3_a := 90 + (- #tPlateValue.A2_a + #tPlateValue.A1_a);

[0231] #Out_Degree_Shift := #tPlateValue.A3_a - #tPlateValue.A3;

[0232] END_REGION

[0233] The second aspect of the present application provides a method for controlling the rotation of a lower mold frame, which can achieve precise control of the rotation of the lower mold frame and improve production efficiency. Specifically, the method includes the following steps:

[0234] S1. Input data

[0235] The operator inputs necessary data through the human-machine interaction unit. These data include at least:

[0236] The zero coordinate value (A, B) of the first connecting rod fixed point in the coordinate system established with the mold base rotation center as the origin

[0237] Zero position coordinate value of the lower mold frame drive shaft center (C, D)

[0238] First crank length L4

[0239] First connecting rod length L5

[0240] In addition, the operator can also input the preset angle of rotation of the lower mold frame through the human-machine interaction unit. Or the lower mold frame drive rotates to a preset angle , and other related parameters. The human-machine interaction unit has a display function that can display the system status, operation menu and input interface, as well as an input function that allows the operator to input various required parameters.

[0241] S2, calculate the lower mold frame drive or the lower mold frame rotation angle, and generate the corresponding control signal

[0242] The control unit receives the input basic data from the human-machine interaction unit and performs a series of calculations based on the basic data. When the input basic data includes the preset angle of rotation of the lower mold frame drive member, When the corresponding lower mold frame rotation angle is calculated based on the basic data and intermediate variables ;or

[0243] When the basic data includes the preset angle of rotation of the lower mold frame When the corresponding rotation angle of the lower mold frame drive is calculated based on the basic data and intermediate variables .

[0244] S3, drives the lower mold frame driving part to rotate according to the control signal, thereby driving the lower mold frame to rotate

[0245] The driving unit receives a control signal from the control unit and drives the lower mold frame driving member to rotate according to the signal. The rotation of the lower mold frame driving member is transmitted to the lower mold frame through the lower mold frame transmission member (including the first crank and the first connecting rod), so that the lower mold frame rotates around the rotation center of the lower mold frame, thereby realizing precise angle adjustment of the lower mold frame.

[0246] like Figure 4 FIG. 1 is a schematic diagram of the overall rotating mold frame structure provided by an embodiment of the present application. Figure 5 Shown is a schematic diagram of the bottom frame structure of an integral rotating mold frame provided in one embodiment of the present application.

[0247] See also Figure 4 and Figure 5 , the third aspect of the present application provides an integral rotating mold frame, including the system in the above embodiment, and further including: a bottom frame 1, a rotating bracket 2, and an upper mold frame 4;

[0248] The bottom frame 1 is the basic supporting structure of the whole rotating mold frame, which is used to bear all the weight of the rotating bracket 2, the lower mold frame 3 and the upper mold frame 4, and ensure the stability and reliability of the whole mold frame. The bottom frame 1 is usually made of high-strength steel, which has sufficient rigidity and durability to withstand the high pressure and temperature generated during the injection molding process.

[0249] The rotating bracket 2 is rotatably connected to the bottom frame 1 at the bracket rotation center 22 through the bracket rotation assembly 21, and the bracket driving member 23 drives the rotating bracket 2 to rotate around the bracket rotation center 22 as the axis, so as to achieve a wide range of angle adjustment of the overall mold frame. The bracket driving member 23 can be an electric motor, a hydraulic motor or other forms of power devices, and ensures the stability and accuracy of the rotating bracket 2 at different positions by accurately controlling the rotation angle.

[0250] like Figure 6 FIG. 1 is a schematic diagram of the assembly structure of a rotating bracket, an upper mold frame and a lower mold frame in a rotating state of an integral rotating mold frame provided by an embodiment of the present application, as shown in FIG. Figure 7 Shown is a schematic diagram of the overall rotating mold frame structure from another angle provided by the embodiment.

[0251] For a specific example, see Figure 6 and Figure 7As shown, the support rotating assembly 21 includes a first rotating shaft 211 and a first bearing 212. The first bearing 212 is fixed to the bottom frame 1, one end of the first rotating shaft 211 is connected to the first bearing 212, and the other end is connected to the rotating support 2 at the support rotation center 22, so that the rotating support 2 can realize the rotation action.

[0252] Through a wide range of angle adjustments, the rotating bracket can adapt to different injection molding machines and production line layouts, improving production flexibility. For example, when producing different models of automotive parts, the position of the mold can be optimized by adjusting the angle of the rotating bracket, thereby improving production efficiency and product quality.

[0253] In some embodiments of the present application, see Figure 4 and Figure 5 As shown, two bracket driving members 23 are arranged on both sides of the bottom frame 1, and the bracket driving member 23 on each side is connected to the rotating bracket 2 through the bracket transmission member 24 to drive the rotating bracket 2 to rotate. By arranging the bracket driving member 23 on the bottom frame 1, it is possible to ensure that the driving member is installed firmly, reduce vibration and displacement, and improve the stability of the overall system.

[0254] In some embodiments of the present application, see Figure 4 and Figure 5 As shown, the support transmission member 24 includes a driving gear 241 and an arc-shaped rack 242 meshing with the driving gear. The driving gear 241 is driven by the output shaft of the support driving member 23 ; the arc-shaped rack 242 is fixedly connected to the rotating support 2 .

[0255] The driving gear 241 is usually a high-precision gear, such as a helical gear or a herringbone gear, to ensure low noise and high precision during the transmission process. The design of the arc-shaped rack 242 allows the rotating bracket 2 to always remain in mesh with the driving gear 241 during the rotation process, ensuring the continuity and stability of the transmission.

[0256] In some embodiments of the present application, see Figures 4 to 6 As shown, the arc-shaped rack 242 is provided with a limiter 2421, which is used to limit the range of motion of the arc-shaped rack 242 to prevent excessive rotation. The limiter 2421 can be a mechanical stopper, a limit switch or other forms of physical obstacles, which are used to limit the range of motion of the arc-shaped rack 242. The setting of the limiter 2421 improves the safety of the system, prevents excessive rotation caused by improper operation or control system failure, and ensures that the rotating bracket 2 operates stably within a predetermined working range by limiting the range of motion of the arc-shaped rack 242, thereby improving the reliability and life of the system.

[0257] The lower mold frame 3 is rotatably connected to the rotating bracket 2 at the lower mold frame rotation center 32 through the lower mold frame rotating assembly 31. The lower mold frame driving member 33 drives the lower mold frame 3 to rotate around the lower mold frame rotation center 32 to achieve angle adjustment of the lower half of the mold. The lower mold frame driving member 33 can be an electric motor, a hydraulic motor or other forms of power devices, and the stability and accuracy of the lower mold frame at different positions are ensured by accurately controlling the rotation angle.

[0258] For a specific example, see Figure 2 and Figure 6 As shown, the lower mold frame rotating assembly 31 includes a second rotating shaft (not shown in the figure) and a second bearing member 312. The second bearing member 312 is fixed to the rotating bracket 2 to reduce the friction during the rotation process. One end of the second rotating shaft is connected to the second bearing 312, and the other end is connected to the lower mold frame 3 at the rotation center 32 of the lower mold frame, so that the lower mold frame 3 can realize the rotation action.

[0259] By adjusting the angle of the lower mold frame 3, it is possible to better adapt to complex mold structures, such as more convenient placement of inserts and improved positioning accuracy of inserts during insert injection molding. In addition, the independent rotation function of the lower mold frame 3 is also convenient for cleaning and maintenance of the mold.

[0260] In some embodiments of the present application, see Figure 2 and Figure 6 As shown, two lower mold frame driving members 33 are arranged on both sides of the rotating bracket 2, and each lower mold frame driving member 33 is connected to the lower mold frame 3 through a lower mold frame transmission member 34 to drive the lower mold frame 3 to rotate.

[0261] The connection point where the lower mold frame driving member 33 is connected to the lower mold frame 3 through the lower mold frame transmission member 34 should be at a certain distance from the lower mold frame rotation center 32, so that the driving force at the connection point can drive the lower mold frame 3 to rotate around the lower mold frame rotation center 32 as the axis.

[0262] The lower mold frame drive member 33 can be an electric motor, a hydraulic motor or a pneumatic motor, etc., and the specific selection depends on the load and precision requirements of the application. For example, in applications requiring high torque and low speed, a hydraulic motor can be selected; and in applications requiring high precision and fast response, a servo motor can be selected.

[0263] The lower mold frame drive member 33 is arranged on the rotating bracket 2, which can save space and make the entire device more compact. This installation method allows the lower mold frame drive member 33 to rotate with the rotating bracket 2, adapt to different working positions, and improve flexibility.

[0264] In some embodiments of the present application, see Figure 2 and Figure 6As shown, the lower mold frame transmission member 34 includes: a first crank 341 and a first connecting rod 342, one end of the first crank 341 is connected to the lower mold frame driving member 33; one end of the first connecting rod 342 is connected to the other end of the first crank 341, and the other end of the first connecting rod 342 is connected to the lower mold frame 3.

[0265] The main function of the first crank 341 is to convert the rotational motion of the lower mold frame driving member 33 into reciprocating motion. By adjusting the length of the first crank 341, the stroke and speed of the lower mold frame 3 can be changed. The main function of the first connecting rod 342 is to transmit the reciprocating motion of the first crank 341 to the lower mold frame 3, so as to realize the precise rotation of the lower mold frame 3.

[0266] The upper mold frame 4 is rotatably connected to the rotating bracket 2 at the upper mold frame rotation center 42 through the upper mold frame rotating assembly 41. The upper mold frame driving member 43 drives the upper mold frame 4 to rotate around the upper mold frame rotation center 42 to achieve angle adjustment of the upper half of the mold. The upper mold frame driving member 43 can be an electric motor, a hydraulic motor or other forms of power devices, and ensures the stability and accuracy of the upper mold frame at different positions by accurately controlling the rotation angle.

[0267] like Figure 8 FIG. 1 is a schematic diagram of an upper mold frame structure of an integral mold frame in one direction provided by an embodiment of the present application; Fig. 9 FIG. 1 is a schematic diagram of an upper mold frame structure of an integral mold frame in another direction provided by an embodiment of the present application; Fig.10 FIG. 1 is a schematic diagram of the assembly structure of the rotating bracket, the upper mold frame and the lower mold frame in another state of the integral mold frame provided by one embodiment of the present application; Fig.11 yes Fig.10 The cross-sectional view along the section line AA; Fig.12 yes Fig.11 Enlarged view of point B in the middle.

[0268] For a specific example, see Figure 6 , Figures 8 to 12 As shown, the upper mold frame rotating assembly 41 includes a third rotating shaft 411 and a third bearing member 412. One end of the third rotating shaft 411 is fixed to the upper mold frame 4, and the third bearing member 412 is fixed to the lifting slide 25 of the rotating bracket 2. The other end of the third rotating shaft 411 cooperates with the third bearing member 412 to enable the upper mold frame 4 to achieve a rotating motion. While the lifting slide 24 of the rotating bracket 2 is performing a lifting motion, it can drive the upper mold frame 4 to move up and down, so that the half mold on the upper mold frame 4 can achieve a mold closing and mold opening operation with the half mold on the lower mold frame 3.

[0269] By adjusting the angle of the upper mold frame 4, the closing and opening processes of the mold can be optimized, and the precision and speed of injection molding can be improved. For example, when producing electronic equipment housings, the angle of the upper mold frame can be adjusted to ensure tight closure of the mold, thereby reducing the generation of flash and burrs.

[0270] The integral rotating mold frame provided in the above-mentioned embodiments of the present application realizes flexible adjustment of the mold in multiple directions through a multi-level rotating structure, and is suitable for the production of products with complex shapes; the modular design makes each component easy to disassemble and maintain, reducing maintenance costs and downtime; it is suitable for a variety of injection molding application scenarios, such as injection molding of automotive parts, injection molding of electronic equipment housings, etc.

[0271] In some embodiments of the present application, see Figure 6 , Figures 8 to 12 As shown, two upper mold frame driving members 43 are arranged on both sides of the upper mold frame 4, and each upper mold frame driving member 43 is connected to the rotating bracket 2 through an upper mold frame transmission member 44 to drive the upper mold frame 4 to rotate.

[0272] The upper mold frame driving component 43 can be fixedly set on the upper mold frame 4. The connection point where the upper mold frame driving component 43 is connected to the rotating bracket 2 through the upper mold frame transmission component 44 is at a certain distance from the upper mold frame rotation center 42 of the upper mold frame 4, so that the reaction force of the force output at the upper mold frame rotation center 42 by the upper mold driving component 43 can prompt the upper mold frame 4 to rotate around the upper mold frame rotation center 42 as the axis.

[0273] In some embodiments of the present application, the upper mold frame transmission component 44 includes: a second crank 441 and a second connecting rod 442, one end of the second crank 441 is connected to the upper mold frame driving component 43; one end of the second connecting rod 442 is connected to the other end of the second crank 441, and the other end of the second connecting rod 442 is connected to the lifting slide 25 of the rotating bracket 2.

[0274] The main function of the second crank 441 is to convert the rotational motion of the upper mold frame driving member 43 into reciprocating motion. By adjusting the length of the second crank 441, the stroke and speed of the upper mold frame 4 can be changed. The length and angle of the second crank 441 can be adjusted by an adjustment mechanism to meet different work requirements.

[0275] The main function of the second connecting rod 442 is to transmit the force brought by the reciprocating motion of the second crank 441 to the lifting slide 25 of the rotating bracket 2, and to promote the rotation of the upper mold frame 4 through the reaction force of the force. By adjusting the length and angle of the second crank 441, the motion parameters of the upper mold frame 4 can be easily changed to meet different processing requirements.

[0276] The following is a description of the rotation process of the overall rotating mold frame:

[0277] Initial state:

[0278] Bottom frame 1: As the basic supporting structure of the entire rotating formwork, the bottom frame 1 is fixed on the ground to provide stable support.

[0279] The rotating bracket 2 is rotatably connected to the bottom frame 1 through the bracket rotating assembly 21 (including the first rotating shaft 211 and the first bearing member 212 ) and is in the initial position.

[0280] The lower mold frame 3 is rotatably connected to the rotating bracket 2 through the lower mold frame rotating assembly 31 (including the second rotating shaft and the second bearing member 312), and is in the initial position.

[0281] The upper mold frame 4 is rotatably connected to the rotating bracket 2 through the upper mold frame rotating assembly 41 (including the third rotating shaft 411 and the bearing member 412), and is in the initial position.

[0282] Rotation action of rotating bracket 2:

[0283] Start the support driving member 23: The support driving member 23 (which may be an electric motor, a hydraulic motor, etc.) is started, and its output shaft drives the driving gear 241 to rotate.

[0284] Gear transmission: The driving gear 241 meshes with the arc-shaped rack 242 to transmit the rotational motion to the arc-shaped rack 242.

[0285] Rotation of the rotating bracket 2: The arc-shaped rack 242 is fixedly connected to the rotating bracket 2, and its movement drives the rotating bracket 2 to rotate around the bracket rotation center 22. The limiter 2421 limits the movement range of the arc-shaped rack 242 to prevent excessive rotation, ensuring that the rotating bracket 2 operates stably within a predetermined working range.

[0286] Rotation action of lower mold frame 3:

[0287] Start the lower mold frame driving member 33: The lower mold frame driving member 33 is started, and its output shaft drives the first crank 341 to rotate.

[0288] Crank-connecting rod transmission: The rotational motion of the first crank 341 is transmitted to the lower mold frame 3 through the first connecting rod 342 .

[0289] Rotation of the lower mold frame 3: The lower mold frame 3 rotates around the lower mold frame rotation center 32 to adjust the angle of the lower half of the mold. The rotation angle of the lower mold frame 3 can be precisely controlled by adjusting the length or rotation angle of the first crank 341.

[0290] Rotational action of upper mold frame 4:

[0291] Start the upper mold frame driving member 43: The upper mold frame driving member 43 (which can be an electric motor, a hydraulic motor, etc.) is started, and its output shaft drives the second crank 441 to rotate.

[0292] Crank-connecting rod transmission: The rotational motion of the second crank 441 is transmitted to the lifting slide plate 25 of the rotating bracket 2 through the second connecting rod 442 .

[0293] Rotation of the upper mold frame 4: The movement of the second connecting rod 442 pushes the upper mold frame 4 to rotate around the upper mold frame rotation center 42 through the reaction force of the force. The rotation angle of the upper mold frame 4 can be precisely controlled by adjusting the length or rotation angle of the second crank 441.

[0294] Mould closing and mould opening operations:

[0295] Mold closing operation: The lifting slide plate 25 of the rotating bracket 2 cooperates with the guide rail 26 to perform lifting movement, driving the upper mold frame 4 to move up and down. When the upper mold frame 4 descends to a predetermined position, the half mold on the upper mold frame 4 is molded with the half mold on the lower mold frame 3 to complete the mold closing.

[0296] Mold opening operation: the lifting slide plate 25 of the rotating bracket 2 rises, driving the upper mold frame 4 to rise. When the upper mold frame 4 rises to a predetermined position, the half mold on the upper mold frame 4 is separated from the half mold on the lower mold frame 3, completing the mold opening.

[0297] Through the above-mentioned rotation process, the integral rotating mold frame of the present invention realizes multi-directional and multi-level precise rotation movements, and ensures the high precision of each mold frame component during the rotation process through the precise coordination of the multi-level transmission mechanism; the multi-level rotating structure enables the mold frame to adapt to different injection molding machines and production line layouts, thereby improving production flexibility.

[0298] It should be noted that the technical solutions in the various embodiments of the present application can be combined with each other, but the basis for the mutual combination is that it can be implemented by ordinary technicians in the field; when the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist, that is, it does not belong to the scope of protection of this application.

[0299] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A lower mold frame rotation control system, characterized in that: Used to control the rotation angle of the lower mold frame on the rotating bracket connected to it, including: A lower mold frame, including a lower mold frame rotation center, used for connecting with the rotating bracket; Human-computer interaction unit, used to input basic data; A control unit, connected to the human-machine interaction unit, configured to calculate the rotation angle according to the basic data and output a control signal to the driving unit; A driving unit, the driving unit is connected to the lower mold frame and the control unit respectively, and is used to control the rotation of the lower mold frame according to a received control signal; Wherein, the driving unit comprises a lower mold frame driving member and a lower mold frame transmission member, the lower mold frame transmission member comprises: a first crank and a first connecting rod, one end of the first crank is connected to the lower mold frame driving member, the other end of the first crank is connected to one end of the first connecting rod, and the other end of the first connecting rod is connected to the lower mold frame; the lower mold frame is driven by the lower mold frame driving member, so as to rotate with the rotation center of the lower mold frame as the axis; The basic data includes the preset rotation angle of the lower mold frame drive member Or the lower mold frame rotates to a preset angle ; The execution method of calculating the rotation angle according to the basic data includes: Calculate intermediate variables; When the basic data includes the lower mold frame driving member rotating a preset angle Calculate the corresponding rotation angle of the lower mold frame ;or When the basic data includes the preset angle of rotation of the lower mold frame Calculate the corresponding rotation angle of the lower mold frame drive .

2. The lower mold frame rotation control system according to claim 1, characterized in that: The basic data also includes: the zero-position coordinate value (A, B) of the first connecting rod fixed point and the zero-position coordinate value (C, D) of the center of the shaft of the lower mold frame driving member in the coordinate system established with the rotation center of the lower mold frame as the origin, as well as the first crank length and the first connecting rod length; The calculation of intermediate variables includes: According to the zero-position coordinate values ​​of the first connecting rod fixing point and the lower mold frame driving member shaft center, the zero-position angle A1 between the straight line determined by the first connecting rod fixing point and the lower mold frame driving member shaft center and the horizontal direction is calculated; According to the zero-position coordinate values ​​of the first connecting rod fixing point and the center of the lower mold frame driving member shaft, the zero-position length L1 of the line connecting the first connecting rod fixing point and the center of the lower mold frame driving member shaft is calculated; The zero position angle A2 of the angle formed by the straight line determined by the first connecting rod fixing point and the axis center of the lower mold frame driving member and the straight line determined by the connecting shaft center and the axis center of the lower mold frame driving member is calculated according to the zero position length L1, the first connecting rod length and the first crank length; According to the zero angle A1 and the zero angle A2, the zero angle A3 between the straight line determined by the axis center of the lower mold frame driving member and the center of the connecting axis and the vertical direction is calculated; According to the zero position coordinate value (C, D) of the axis center of the lower mold frame driving member, the length of the first connecting rod and the zero position angle A3, the zero position coordinate value (Middle_Shift_X, Middle_Shift_Y) of the connecting axis center is calculated; The zero-position length L3 is calculated based on the zero-position coordinate value of the fixed point of the first connecting rod.

3. The lower mold frame rotation control system according to claim 2, characterized in that: When the basic data includes the lower mold frame driving member rotating a preset angle Calculate the corresponding rotation angle of the lower mold frame include: According to the preset angle of rotation of the lower mold frame drive , the zero position coordinate value of the axis center of the lower mold frame drive member, the length of the first connecting rod, and the zero position angle A3 are used to calculate the rotation angle of the lower mold frame drive member: The instantaneous coordinate value of the rear connecting axis center; According to the instantaneous coordinate value of the center of the connecting shaft, the instantaneous distance L2 from the center of the connecting shaft to the rotation center of the lower mold frame is calculated; According to the zero length L3, the instantaneous distance L2, and the length of the first crank, the instantaneous angle A5 formed by the straight line determined by the fixed point of the first connecting rod and the rotation center of the lower mold frame and the straight line determined by the center of the connecting shaft and the rotation center of the lower mold frame is calculated; According to the instantaneous coordinate value of the center of the connecting shaft, the instantaneous angle A6 of the angle between the straight line determined by the center of the connecting shaft and the rotation center of the lower mold frame and the horizontal direction is calculated; The preset rotation angle of the lower mold frame drive is obtained according to the instantaneous angle A5, instantaneous angle A6 and the zero coordinate value of the first connecting rod fixed point. The rotation angle of the lower mold frame .

4. The lower mold frame rotation control system according to claim 2, characterized in that: When the basic data includes the preset angle of rotation of the lower mold frame Calculate the corresponding rotation angle of the lower mold frame drive include: According to the preset angle of rotation of the lower mold frame The instantaneous angle A1_a between the straight line determined by the fixed point of the rear first link and the center of the lower mold frame drive shaft and the horizontal direction and the preset angle of rotation of the lower mold frame The instantaneous angle A2_a formed by the straight line determined by the fixed point of the rear first connecting rod and the axis center of the lower mold frame driving member and the straight line determined by the center of the connecting shaft and the axis center of the lower mold frame driving member is calculated to obtain the preset rotation angle of the lower mold frame. The instantaneous angle A3_a between the straight line determined by the axis center of the rear lower mold frame driving member and the center of the connecting axis and the vertical direction; According to the preset angle of rotation of the lower mold frame The instantaneous angle A3_a and the zero angle A3 between the straight line determined by the axis center of the rear lower mold frame drive member and the center of the connecting axis and the vertical direction are used to calculate the preset rotation angle of the lower mold frame. Rotation angle of rear lower mold frame drive .

5. The lower mold frame rotation control system according to claim 4, characterized in that: The process of calculating the instantaneous angle A2_a is as follows: According to the zero position coordinate value of the first connecting rod fixed point, the zero position angle A7 of the angle between the straight line formed by the first connecting rod fixed point and the rotation center of the lower mold frame and the horizontal direction is calculated; According to the zero angle A7 and the preset angle of the lower mold frame rotation , calculate the preset rotation angle of the lower mold frame The instantaneous angle A7_a between the straight line formed by the fixed point of the rear first link and the rotation center of the lower mold frame and the horizontal direction; According to the zero length L3 and the instantaneous angle A7_a, the preset rotation angle of the lower mold frame is calculated. The instantaneous coordinate value of the fixed point of the first rear link (Middle_Shift_X_a, Middle_Shift_Y_a); According to the preset angle of rotation of the lower mold frame The preset rotation angle of the lower mold frame is calculated by the instantaneous coordinate value of the fixed point of the rear first connecting rod and the zero position coordinate value of the axis center of the lower mold frame driving member. The instantaneous length L1_a of the line connecting the fixed point of the rear first connecting rod and the center of the shaft of the lower mold frame driving member; According to the instantaneous length L1_a, the length of the first connecting rod, and the length of the first crank, the preset rotation angle of the lower mold frame is calculated. The instantaneous angle A2_a formed by the straight line determined by the fixed point of the rear first connecting rod and the center of the lower mold frame driving member axis and the straight line determined by the center of the connecting shaft and the center of the lower mold frame driving member axis.

6. The lower mold frame rotation control system according to claim 5, characterized in that: The preset angle of rotation of the lower mold frame is calculated by the following formula The instantaneous angle A1_a between the straight line determined by the fixed point of the first rear link and the axis center of the lower mold frame drive and the horizontal direction: Among them, π is the ratio of a circle to its circumference.

7. A method for controlling the rotation of a lower mold frame, characterized in that: include: Input basic data into the human-machine interaction unit, the basic data including the preset rotation angle of the lower mold frame drive member Or the lower mold frame rotates to a preset angle ; Calculate the rotation angle and output the control signal; Control the rotation of the lower mold base; Wherein, the calculating of the rotation angle comprises: Calculate intermediate variables; When the basic data includes the lower mold frame driving member rotating a preset angle Calculate the corresponding rotation angle of the lower mold frame ;or When the basic data includes the preset angle of rotation of the lower mold frame Calculate the corresponding rotation angle of the lower mold frame drive ; Wherein, the lower mold frame driving member is connected to the lower mold frame through a lower mold frame transmission member, and the lower mold frame transmission member includes: a first crank and a first connecting rod, one end of the first crank is connected to the lower mold frame driving member, the other end of the first crank is connected to one end of the first connecting rod, and the other end of the first connecting rod is connected to the lower mold frame; the lower mold frame is driven by the lower mold frame driving member, so as to rotate around the rotation center of the lower mold frame as the axis.

8. The method for controlling the rotation of the lower mold frame according to claim 7, characterized in that: The basic data also includes: the zero-position coordinate value (A, B) of the first connecting rod fixed point and the zero-position coordinate value (C, D) of the center of the lower mold frame driving member axis in the coordinate system established with the lower mold frame rotation center as the origin, as well as the first crank length and the first connecting rod length; The calculation of intermediate variables includes: According to the zero-position coordinate values ​​of the first connecting rod fixing point and the lower mold frame driving member shaft center, the zero-position angle A1 between the straight line determined by the first connecting rod fixing point and the lower mold frame driving member shaft center and the horizontal direction is calculated; According to the zero-position coordinate values ​​of the first connecting rod fixing point and the center of the lower mold frame driving member shaft, the zero-position length L1 of the line connecting the first connecting rod fixing point and the center of the lower mold frame driving member shaft is calculated; The zero position angle A2 of the angle formed by the straight line determined by the first connecting rod fixing point and the axis center of the lower mold frame driving member and the straight line determined by the connecting shaft center and the axis center of the lower mold frame driving member is calculated according to the zero position length L1, the first connecting rod length and the first crank length; According to the zero angle A1 and the zero angle A2, the zero angle A3 between the straight line determined by the axis center of the lower mold frame driving member and the center of the connecting axis and the vertical direction is calculated; According to the zero position coordinate value (C, D) of the axis center of the lower mold frame driving member, the length of the first connecting rod and the zero position angle A3, the zero position coordinate value (Middle_Shift_X, Middle_Shift_Y) of the connecting axis center is calculated; The zero-position length L3 is calculated based on the zero-position coordinate value of the fixed point of the first connecting rod.

9. The method for controlling the rotation of the lower mold frame according to claim 8, characterized in that: When the basic data includes the lower mold frame driving member rotating a preset angle Calculate the corresponding rotation angle of the lower mold frame include: According to the preset angle of rotation of the lower mold frame drive , the zero position coordinate value of the axis center of the lower mold frame drive member, the length of the first connecting rod, and the zero position angle A3 are used to calculate the rotation angle of the lower mold frame drive member: The instantaneous coordinate value of the rear connecting axis center; According to the instantaneous coordinate value of the center of the connecting shaft, the instantaneous distance L2 from the center of the connecting shaft to the rotation center of the lower mold frame is calculated; According to the zero length L3, the instantaneous distance L2, and the length of the first crank, the instantaneous angle A5 formed by the straight line determined by the fixed point of the first connecting rod and the rotation center of the lower mold frame and the straight line determined by the center of the connecting shaft and the rotation center of the lower mold frame is calculated; According to the instantaneous coordinate value of the center of the connecting shaft, the instantaneous angle A6 of the angle between the straight line determined by the center of the connecting shaft and the rotation center of the lower mold frame and the horizontal direction is calculated; The preset rotation angle of the lower mold frame drive is obtained according to the instantaneous angle A5, instantaneous angle A6 and the zero coordinate value of the first connecting rod fixed point. The rotation angle of the lower mold frame .

10. The lower mold frame rotation control method according to claim 8, characterized in that: When the basic data includes the preset angle of rotation of the lower mold frame Calculate the corresponding rotation angle of the lower mold frame drive include: According to the preset angle of rotation of the lower mold frame The instantaneous angle A1_a between the straight line determined by the fixed point of the rear first link and the center of the lower mold frame drive shaft and the horizontal direction and the preset angle of rotation of the lower mold frame The instantaneous angle A2_a formed by the straight line determined by the fixed point of the rear first connecting rod and the axis center of the lower mold frame driving member and the straight line determined by the center of the connecting shaft and the axis center of the lower mold frame driving member is calculated to obtain the preset rotation angle of the lower mold frame. The instantaneous angle A3_a between the straight line determined by the axis center of the rear lower mold frame driving member and the center of the connecting axis and the vertical direction; According to the preset angle of rotation of the lower mold frame The instantaneous angle A3_a and the zero angle A3 between the straight line determined by the axis center of the rear lower mold frame drive member and the center of the connecting axis and the vertical direction are used to calculate the preset rotation angle of the lower mold frame. Rotation angle of rear lower mold frame drive .

11. The method for controlling the rotation of the lower mold frame according to claim 10, characterized in that: The process of calculating the instantaneous angle A2_a is as follows: According to the zero position coordinate value of the first connecting rod fixed point, the zero position angle A7 of the angle between the straight line formed by the first connecting rod fixed point and the rotation center of the lower mold frame and the horizontal direction is calculated; According to the zero angle A7 and the preset angle of the lower mold frame rotation , calculate the preset rotation angle of the lower mold frame The instantaneous angle A7_a between the straight line formed by the fixed point of the rear first link and the rotation center of the lower mold frame and the horizontal direction; According to the zero length L3 and the instantaneous angle A7_a, the preset rotation angle of the lower mold frame is calculated. The instantaneous coordinate value of the fixed point of the first rear link (Middle_Shift_X_a, Middle_Shift_Y_a); According to the preset angle of rotation of the lower mold frame The preset rotation angle of the lower mold frame is calculated by the instantaneous coordinate value of the fixed point of the rear first connecting rod and the zero position coordinate value of the axis center of the lower mold frame driving member. The instantaneous length L1_a of the line connecting the fixed point of the rear first connecting rod and the center of the shaft of the lower mold frame driving member; According to the instantaneous length L1_a, the length of the first connecting rod, and the length of the first crank, the preset rotation angle of the lower mold frame is calculated. The instantaneous angle A2_a formed by the straight line determined by the fixed point of the rear first connecting rod and the center of the lower mold frame driving member axis and the straight line determined by the center of the connecting shaft and the center of the lower mold frame driving member axis.

12. The lower mold frame rotation control method according to claim 11, characterized in that: The preset angle of rotation of the lower mold frame is calculated by the following formula The instantaneous angle A1_a between the straight line determined by the fixed point of the first rear link and the axis center of the lower mold frame drive and the horizontal direction: Among them, π is the ratio of a circle to its circumference.

13. An integral rotating mold frame, characterized in that: The lower mold frame rotation control system according to any one of claims 1 to 6 further comprises: Bottom frame; A rotating bracket, comprising a bracket rotating assembly, a bracket rotating center and a bracket driving member, wherein the rotating bracket is rotatably connected to the bottom frame at the bracket rotating center through the bracket rotating assembly, and the rotating bracket is driven by the bracket driving member to rotate around the bracket rotating center as an axis; The upper mold frame includes an upper mold frame rotating assembly, an upper mold frame rotation center and an upper mold frame driving member. The upper mold frame is rotatably connected to the rotating bracket at the upper mold frame rotation center through the upper mold frame rotating assembly. The upper mold frame is driven by the upper mold frame driving member to rotate around the upper mold frame rotation center as the axis.

14. The integral rotating mold frame according to claim 13, characterized in that: The support driving member is arranged on the bottom frame, and the support driving member is connected with the rotating support through a support transmission member to drive the rotating support to rotate.

15. The integral rotating mold frame according to claim 14, characterized in that: The support transmission member comprises: A driving gear driven by an output shaft of the support driving member; An arc-shaped rack meshing with the driving gear, wherein the arc-shaped rack is fixedly connected to the rotating bracket.

16. The integral rotating mold frame according to claim 15, characterized in that: The arc-shaped rack is provided with a limiter, and the limiter is used to limit the movement range of the arc-shaped rack to prevent excessive rotation.

17. The integral rotating mold frame according to claim 13, characterized in that: The lower mold frame driving member is arranged on the rotating bracket, and the lower mold frame driving member is connected with the lower mold frame through a lower mold frame transmission member to drive the lower mold frame to rotate.

18. The integral rotating mold frame according to claim 13, characterized in that: The upper mold frame driving member is arranged on the upper mold frame, and the upper mold frame driving member is connected with the rotating bracket through an upper mold frame transmission member to drive the upper mold frame to rotate.

19. The integral rotating mold frame according to claim 18, characterized in that: The upper mold frame transmission member comprises: a second crank, one end of which is connected to the upper mold frame driving member; A second connecting rod, one end of the second connecting rod is connected to the other end of the second crank, and the other end of the second connecting rod is connected to the rotating bracket.

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