A mold cavity butt joint device for injection mold production

Abstract

The utility model relates to injection mold production equipment technical field, and disclose a kind of die cavity docking device for injection mold production, including base.The die cavity docking device for injection mold production, by embedding pressure sensor in the contact surface of moving plate and mold mounting seat, can real-time, accurately monitor the pressure change in the process of clamping, these pressure data are transmitted to control system in real time, compared with preset process parameters, to dynamically adjust the drive parameter of servo motor, ensure that the clamping pressure is always stable in the best range, this closed-loop control mechanism not only effectively avoids the product flash, material deficiency and other defects caused by pressure fluctuation, but also can analyze pressure curve, find out potential problems such as mold wear and blockage in time, provide scientific basis for preventive maintenance, in addition, the high-precision response characteristic of pressure sensor can capture the millisecond level pressure change in the injection molding process, provide accurate data support for process optimization.

Description

Technical Field

[0001] This utility model relates to the technical field of injection mold production equipment, specifically to a mold cavity docking device for injection mold production. Background Technology

[0002] In the injection mold production process, precise alignment of the mold cavity is a key step in ensuring the quality of mold forming.

[0003] The existing patent document CN220113898U discloses an injection mold. The utility model is equipped with a switch that guides the molten glue in the injection channel to the first mold cavity and the second mold cavity. When the first mold body and the second mold body are aligned and molded, product injection can be performed on the connected first mold cavity or the second mold cavity. After manually switching the orientation of the switch, another product can be injected, which is convenient and quick, does not require changing the mold, and improves production efficiency.

[0004] However, existing mold cavity docking devices used in injection mold production are not suitable for real-time and accurate monitoring of pressure changes during the mold closing process. They cannot compare and analyze the mold closing pressure data with preset process parameters, and therefore cannot dynamically adjust the parameters of the drive components to maintain the stability of the mold closing pressure. This can easily lead to defects such as flash and material shortage in the product due to pressure fluctuations. At the same time, without monitoring and analysis of the pressure curve, it is difficult to detect potential problems such as mold wear and blockage in a timely manner, and it cannot provide a scientific basis for preventive maintenance of the mold. Furthermore, it cannot capture subtle pressure changes during the injection process, which is not conducive to subsequent precise optimization of the production process. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this utility model is to provide a mold cavity docking device for injection mold production, so as to solve the problem mentioned in the background art that the existing mold cavity docking devices for injection mold production are not convenient for real-time and accurate monitoring of pressure changes during the mold closing process.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a mold cavity docking device for injection mold production, comprising a base, two movable plates vertically arranged above the base, mold mounting seats symmetrically distributed on the corresponding surfaces of the two movable plates, and pressure sensors embedded in the contact surfaces of the movable plates and the mold mounting seats.

[0007] As a further improvement to the above solution, a mounting groove is provided on one side of the upper surface of the base, and a servo motor is installed on one side inside the mounting groove.

[0008] As a further improvement to the above solution, a bidirectional lead screw is fixedly connected to the transmission end of the servo motor, and the end of the bidirectional lead screw away from the servo motor is connected to the mounting groove through a bearing.

[0009] As a further improvement to the above solution, the outer surface of the bidirectional lead screw is connected by two symmetrically distributed nut seats, and the movable plate is located on one side of the nut seats.

[0010] As a further improvement to the above solution, a guide block is fixedly connected to the side of the movable plate away from the nut seat, and a guide groove is provided on the side of the upper surface of the base away from the mounting groove, and the guide block and the guide groove are slidably engaged.

[0011] As a further improvement to the above solution, a support plate is vertically installed in the middle of one side of the upper surface of the base, and an electric telescopic rod is horizontally inserted through the middle of the support plate. A locking plate is fixedly connected to the transmission end of the electric telescopic rod.

[0012] As a further improvement to the above solution, two symmetrically distributed locking rods extend horizontally from the side of the locking plate away from the electric telescopic rod, and locking grooves are provided on the side of the two mold mounting seats near the support plate. The locking rods and locking grooves form a detachable locking structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This injection mold production cavity docking device, by embedding pressure sensors on the contact surface between the moving plate and the mold mounting base, can monitor pressure changes during the mold closing process in real time and accurately. These pressure data are transmitted to the control system in real time and compared with preset process parameters for analysis, thereby dynamically adjusting the drive parameters of the servo motor to ensure that the mold closing pressure is always stable within the optimal range. This closed-loop control mechanism not only effectively avoids defects such as flash and material shortage caused by pressure fluctuations, but also can detect potential problems such as mold wear and blockage in a timely manner by analyzing the pressure curve, providing a scientific basis for preventive maintenance. In addition, the high-precision response characteristics of the pressure sensor can capture millisecond-level pressure changes during the injection process, providing accurate data support for process optimization. 2. This injection mold cavity docking device uses a bidirectional screw to drive two moving plates to move synchronously in opposite directions, fundamentally solving the problem of uneven force distribution caused by traditional single-sided drive. During mold closing, the left and right threaded sections of the bidirectional screw drive the nut seat to move precisely in opposite directions, enabling the two mold mounting seats to approach synchronously. This avoids mold tilting and deformation caused by unilateral force. This symmetrical drive structure not only significantly improves mold closing accuracy but also effectively reduces stress concentration in various parts of the mold and extends the mold's service life. At the same time, the precise fit between the guide block and the guide groove further ensures the linear motion accuracy of the moving plates and reduces the impact of lateral offset on the quality of injection molded products. It is particularly suitable for the production needs of high-precision injection molded parts. 3. The mold cavity docking device for injection mold production adopts a mechanical locking structure driven by an electric telescopic rod, which provides a reliable secondary guarantee for mold cavity docking. When the mold is closed and the pressure reaches the set value, the electric telescopic rod pushes the locking plate, so that the locking rod is accurately inserted into the locking groove on the mold mounting seat, ensuring locking accuracy. During the injection process, the mechanical locking structure can withstand the huge thrust generated by high-pressure injection, effectively preventing mold cavity displacement and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the base of this utility model; Figure 3 This is a three-dimensional structural diagram of the movable plate of this utility model; Figure 4 This is an enlarged structural diagram showing a partial detail of the locking plate of this utility model.

[0015] In the diagram: 1. Base; 2. Moving plate; 3. Mold mounting base; 4. Pressure sensor; 5. Mounting groove; 6. Servo motor; 7. Two-way lead screw; 8. Nut seat; 9. Guide block; 10. Guide groove; 11. Support plate; 12. Electric telescopic rod; 13. Locking plate; 14. Locking rod; 15. Locking groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1 - Figure 4This utility model provides a technical solution: a mold cavity docking device for injection mold production, including a base 1, two movable plates 2 are vertically arranged above the base 1, mold mounting seats 3 are symmetrically distributed on the corresponding surfaces of the two movable plates 2, and pressure sensors 4 are embedded in the contact surfaces of the movable plates 2 and the mold mounting seats 3.

[0018] Throughout the mold closing process, the pressure sensor 4, embedded in the contact surface between the moving plate 2 and the mold mounting base 3, monitors the mold closing pressure in real time. This pressure data is quickly transmitted to the external PLC control system (not shown in the figure). The PLC control system will carefully compare and analyze the received actual pressure value with the preset process parameters. Once a pressure fluctuation is detected, the PLC control system will immediately dynamically adjust the drive parameters of the servo motor 6 to ensure that the mold closing pressure is always stable within the optimal process range, effectively avoiding product defects caused by unstable pressure.

[0019] A mounting groove 5 is provided on one side of the upper surface of the base 1. A servo motor 6 is installed on one side inside the mounting groove 5. A bidirectional lead screw 7 is fixedly connected to the transmission end of the servo motor 6. The end of the bidirectional lead screw 7 away from the servo motor 6 is connected to the mounting groove 5 through a bearing. Two symmetrically distributed nut seats 8 are connected to the outer surface of the bidirectional lead screw 7 through threads. A moving plate 2 is located on one side of the nut seats 8. A guide block 9 is fixedly connected to the side of the moving plate 2 away from the nut seats 8. A guide groove 10 is provided on the side of the upper surface of the base 1 away from the mounting groove 5. The guide block 9 slides with the guide groove 10. A support plate 11 is vertically installed in the middle of one side of the upper surface of the base 1. An electric telescopic rod 12 is horizontally passed through the middle of the support plate 11. A locking plate 13 is fixedly connected to the transmission end of the electric telescopic rod 12. Two symmetrically distributed locking rods 14 extend horizontally from the side of the locking plate 13 away from the electric telescopic rod 12. Locking grooves 15 are provided on the side of the two mold mounting seats 3 near the support plate 11. The locking rods 14 and the locking grooves 15 form a detachable locking structure.

[0020] When the device is started, the servo motor 6 begins to work and drives the bidirectional lead screw 7 to rotate. Because the surface of the bidirectional lead screw 7 has symmetrically distributed left-hand and right-hand threads, the two nut seats 8 connected to it will move synchronously and in opposite directions along the lead screw. Since the nut seats 8 are fixedly connected to the moving plate 2, the moving plate 2 will move together with the nut seats 8, thereby driving the mold mounting seats 3 mounted on the moving plate 2 to move synchronously in opposite directions. During the movement of the mold mounting seats 3, the guide block 9 slides smoothly within the guide groove 10, allowing the mold mounting seats 3 to precisely align. When the two mold mounting seats 3 are fully aligned and the pressure sensor 4 detects that the pressure has reached the set value, the PLC control system will... A working command is sent to the electric telescopic rod 12. After receiving the command, the transmission end of the electric telescopic rod 12 will push the locking plate 13 forward, so that the locking rod 14 on the locking plate 13 is accurately inserted into the locking groove 15 on the mold mounting base 3 to achieve mechanical locking. After the mechanical locking is formed, it can provide an additional strong locking force for the mold cavity, ensuring that the mold cavity will not be displaced during the high-pressure injection process. After the injection process is completed, the electric telescopic rod 12 will retract in the opposite direction, driving the locking rod 14 to exit from the locking groove 15 and releasing the mechanical locking state. Subsequently, the servo motor 6 reverses and drives the bidirectional lead screw 7 to rotate in the opposite direction, so that the two moving plates 2 move in opposite directions, realizing the mold opening action, thus completing a complete injection cycle.

[0021] Working Principle: When the device is started, the servo motor 6 begins to work and drives the bidirectional lead screw 7 to rotate. Because the surface of the bidirectional lead screw 7 has symmetrically distributed left-hand and right-hand threads, the two nut seats 8 connected to it will move synchronously and in opposite directions along the lead screw. Since the nut seats 8 are fixedly connected to the moving plate 2, the moving plate 2 will move together with the nut seats 8, thereby driving the mold mounting base 3 mounted on the moving plate 2 to move synchronously in opposite directions. During the movement of the mold mounting base 3, the guide block 9 slides smoothly within the guide groove 10, allowing the mold mounting base 3 to precisely align. Throughout the mold closing process, the pressure sensor 4 embedded in the contact surface between the moving plate 2 and the mold mounting base 3 will monitor the mold closing pressure in real time. This pressure data will be quickly transmitted to the external PLC control system (not shown in the figure). The PLC control system will carefully compare and analyze the received actual pressure value with the preset process parameters. Once a pressure fluctuation is detected, the PLC control system will immediately adjust the servo motor... The drive parameters of motor 6 are dynamically adjusted to ensure that the mold closing pressure remains stable within the optimal process range, effectively avoiding product defects caused by unstable pressure. When the two mold mounting seats 3 are fully aligned and the pressure sensor 4 detects that the pressure has reached the set value, the PLC control system sends a working command to the electric telescopic rod 12. After receiving the command, the transmission end of the electric telescopic rod 12 pushes the locking plate 13 forward, so that the locking rod 14 on the locking plate 13 is accurately inserted into the locking groove 15 on the mold mounting seat 3 to achieve mechanical locking. After the mechanical locking is formed, it can provide an additional strong locking force for the mold cavity, ensuring that the mold cavity will not be displaced during the high-pressure injection process. After the injection process is completed, the electric telescopic rod 12 will retract in the opposite direction, driving the locking rod 14 to exit from the locking groove 15 and releasing the mechanical locking state. Subsequently, the servo motor 6 reverses and drives the bidirectional lead screw 7 to rotate in the opposite direction, so that the two moving plates 2 move in opposite directions to realize the mold opening action, thus completing a complete injection cycle.

[0022] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A mold cavity docking device for injection mold production, comprising a base (1), characterized in that: Two movable plates (2) are vertically arranged above the base (1). The corresponding surfaces of the two movable plates (2) are provided with symmetrically distributed mold mounting seats (3). Pressure sensors (4) are embedded in the contact surfaces of the movable plates (2) and the mold mounting seats (3).

2. The mold cavity docking device for injection mold production according to claim 1, characterized in that: A mounting groove (5) is provided on one side of the upper surface of the base (1), and a servo motor (6) is installed on one side inside the mounting groove (5).

3. The mold cavity docking device for injection mold production according to claim 2, characterized in that: The transmission end of the servo motor (6) is fixedly connected to a bidirectional lead screw (7), and the end of the bidirectional lead screw (7) away from the servo motor (6) is connected to the mounting groove (5) through a bearing.

4. The mold cavity docking device for injection mold production according to claim 3, characterized in that: The outer surface of the bidirectional lead screw (7) is connected by two symmetrically distributed nut seats (8) through threads, and the moving plate (2) is located on one side of the nut seats (8).

5. The mold cavity docking device for injection mold production according to claim 1, characterized in that: The movable plate (2) is fixedly connected to a guide block (9) on the side away from the nut seat (8), and a guide groove (10) is provided on the upper surface of the base (1) on the side away from the mounting groove (5). The guide block (9) and the guide groove (10) are in sliding cooperation.

6. The mold cavity docking device for injection mold production according to claim 1, characterized in that: A support plate (11) is vertically installed in the middle of one side of the upper surface of the base (1), and an electric telescopic rod (12) is horizontally inserted through the middle of the support plate (11). A locking plate (13) is fixedly connected to the transmission end of the electric telescopic rod (12).

7. A mold cavity docking device for injection mold production according to claim 6, characterized in that: Two symmetrically distributed locking rods (14) extend horizontally from the side of the locking plate (13) away from the electric telescopic rod (12). Locking grooves (15) are provided on the side of the two mold mounting seats (3) near the support plate (11). The locking rods (14) and the locking grooves (15) form a detachable locking structure.

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