Fine adjustment mechanism of injection molding mold

Abstract

The utility model relates to the technical field of mold adjusting mechanisms, in particular to a fine adjustment mechanism of an injection molding mold, which comprises a mold carrier which is positioned at the uppermost part of the mechanism and is used for placing the injection molding mold, an opening is formed in the top of the movable base, a first servo motor connected with the bottom of the mold carrier is contained in an inner cavity of the movable base, the bottom of the movable base is connected with two lead screws through two vertically-staggered threaded sleeves, sliding frames are arranged at the two ends of each lead screw, and the lead screws are connected with guide rails on the sliding frames through sliding switching blocks. One end of the lead screw penetrates through the sliding adapter block and is connected with a second servo motor, the bottom of the second servo motor is connected with a sliding rail, and a controller of the first servo motor and a controller of the second servo motor are connected with a computer. The utility model has the advantages of high precision and high efficiency, and can quickly and accurately respond to movement and rotation in a larger range.

Description

Technical Field

[0001] This utility model relates to the technical field of mold adjustment mechanisms, specifically to a fine-tuning mechanism for injection molding molds. Background Technology

[0002] Fine-tuning mechanisms in injection molding molds are used for precise adjustments during mold setup and production to ensure product quality and dimensional accuracy. Traditional mold designs typically employ fixed structures, requiring disassembly and reprocessing for adjustments to mold size or position, which is time-consuming and costly. As manufacturing demands for precision and efficiency increase, fixed-structure molds struggle to meet these requirements. The introduction of fine-tuning mechanisms enhances mold flexibility and adjustability, allowing adjustments after mold assembly without disassembly, significantly improving setup efficiency.

[0003] To achieve precise control over the mold adjustment position, a computer-controlled coordinate network is needed, along with a high-precision transmission mechanism, closed-loop control, and intelligent algorithms. This allows for micron-level or even nanometer-level precision control, meeting the demands of modern manufacturing for high precision and efficiency. Most molds on the market rely solely on motors for adjustment, which fails to meet the required precision. Therefore, a micro-adjustment mechanism for injection molding molds is proposed to address this issue. Utility Model Content

[0004] The purpose of this invention is to provide a fine-tuning mechanism for injection molding dies to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The fine-tuning mechanism for an injection molding die includes a mold carrier located at the top of the mechanism for placing the injection molding die. A movable base is located directly below the mold carrier. The top of the movable base is open, and a first servo motor connected to the bottom of the mold carrier is housed in an internal cavity. The bottom of the movable base is connected to two horizontally intersecting lead screws via two integrally formed vertically intersecting threaded sleeves. Each lead screw has a sliding frame of the same length at both ends, perpendicular to the lead screw. The lead screws are slidably connected to guide rails on the sliding frames via sliding adapter blocks rotatably connected at both ends. One end of each lead screw passes through the sliding adapter block and is connected to a second servo motor. The bottom of each second servo motor is slidably connected to a slide rail of the same length and parallel to the guide rail on the same side. The controllers of the first and second servo motors are connected to a computer for recognizing adjustment commands via a wireless network.

[0007] Preferably, the top of the mold carrier is provided with a screw hole for fixing the injection molding mold, and the side wall and bottom of the mold carrier are fixedly connected to the output shaft of the first servo motor by bolts. The movable base, the first servo motor inside it, and the mold carrier are all in a horizontal state.

[0008] Preferably, the first servo motor is fixed to the inner wall of the movable base by bolts, and the rotation angle of the first servo motor is controlled by the adjustment command input from the computer. Except for the two ends of the threaded sleeve, the rest of the movable base does not contact the sliding frame.

[0009] Preferably, the length of the threaded sleeve is less than the length of the lead screw, the length of the threaded section inside the threaded sleeve is less than or equal to the length of the threaded sleeve body, the movable range of the threaded section inside the threaded sleeve is equal to the length of the threaded section of the lead screw, and the thread density of the two lead screws is equal and their lengths are matched.

[0010] Preferably, the length of the guide rail on the sliding frame is equal to the length of the thread on the lead screw surface parallel to it, and a roller is installed at the bottom of the sliding adapter block.

[0011] Preferably, a Cartesian coordinate system is established in the computer with any point as the origin in the area enclosed by the sliding frame. The two lead screws are respectively used as the X and Y axes. Every part that the threaded section of the lead screw can cover during the horizontal or vertical movement is represented by coordinates in the Cartesian coordinate system on the computer. The two ends of the threaded section of the threaded sleeve are displayed in the coordinate system by corresponding coordinate points. The addition or subtraction of the coordinate values ​​is proportional to the number of rotations of the lead screw.

[0012] Preferably, the length and height of each slide rail are adapted to the length and height of the nearest slide rail.

[0013] Preferably, for the destination coordinates input by the computer, the second servo motor that drives the threaded sleeve to move horizontally on the "X" axis is rotated first among the two second servo motors controlled by the computer, and the second servo motor that drives the threaded sleeve to move horizontally on the "Y" axis rotates after the threaded sleeve reaches the "X" axis point.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The fine-tuning mechanism of this injection molding die is monitored and dynamically adjusted in real time through an industrial computer. By utilizing a high-precision lead screw, it can achieve precise control at the micron or even nanometer level, meeting the demands of modern manufacturing for high precision and high efficiency.

[0016] 2. The fine-tuning mechanism of the injection mold can respond quickly and accurately to a relatively large range of movements, as well as perform 360° precise rotation adjustment, which greatly increases the efficiency and range of adjustment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a partial structural disassembly diagram of the utility model;

[0019] Figure 3 This is a top-view cross-section diagram of the structure in the utility model;

[0020] In the diagram: 1. Mold carrier; 2. First servo motor; 3. Moving base; 31. Threaded sleeve; 4. Lead screw; 41. Second servo motor; 5. Sliding frame; 6. Sliding adapter block; 7. Slide rail. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Please see Figures 1-3 This embodiment provides a technical solution:

[0023] The fine-tuning mechanism of the injection molding die includes a mold carrier 1 located at the top of the mechanism for placing the injection molding die. A movable base 3 is located directly below the mold carrier 1. The top of the movable base 3 is open and a first servo motor 2 connected to the bottom of the mold carrier 1 is housed in an internal cavity. The bottom of the movable base 3 is threaded with two horizontally intersecting screw rods 4 through two integrally formed vertically intersecting threaded sleeves 31. Each screw rod 4 has a sliding frame 5 of the same length and perpendicular to the screw rod 4 at both ends. The screw rod 4 is slidably connected to the guide rail on the sliding frame 5 through a sliding adapter block 6 rotatably connected at both ends. One end of each screw rod 4 passes through the sliding adapter block 6 and is connected to a second servo motor 41. The bottom of each second servo motor 41 is slidably connected to a slide rail 7 of the same length and parallel to the guide rail on the same side. The controllers of the first servo motor 2 and the second servo motor 41 are connected to a computer for recognizing adjustment commands via a wireless network.

[0024] In this embodiment, in order to prevent the equipment from tilting, the top of the mold carrier 1 is provided with a screw hole for fixing the injection molding mold, and the side wall and bottom of the mold carrier 1 are fixedly connected to the output shaft of the first servo motor 2 by bolts. The movable base 3 and the first servo motor 2 inside it and the mold carrier 1 are all in a horizontal state, so that the mold will not be inaccurate in position when fine-tuning.

[0025] Specifically, the first servo motor 2 is fixed to the inner wall of the movable base 3 by bolts. The rotation angle of the first servo motor 2 is controlled by the adjustment command input from the computer. When the corresponding rotation command is input into the computer, the first servo motor will rotate precisely by the corresponding angle, making the rotation fine adjustment more accurate. Except for the two ends of the threaded sleeve 31, the rest of the movable base 3 does not contact the sliding frame 5.

[0026] Furthermore, the length of the threaded sleeve 31 is less than the length of the lead screw 4, which allows for a greater range of movement of the threaded sleeve 31. The length of the threaded section inside the threaded sleeve 31 is less than or equal to the length of the sleeve body. The movable range of the threaded section inside the threaded sleeve 31 is equal to the length of the threaded section of the lead screw 4. For the sake of precision, when the threaded sleeve 31 moves to one end of the lead screw 4, since the sleeve body of the threaded sleeve 31 is longer than or equal to the length of its internal threaded section, it will prevent the internal threaded section of the threaded sleeve 31 from exceeding the threaded section of the lead screw 4. By setting a stop outside the threaded section of the lead screw 4, when one end of the threaded sleeve 31 contacts the stop, the ends of the threaded sections of the threaded sleeve 31 and the lead screw 4 near the stop are flush. The thread density of the two lead screws 4 is equal and their lengths are matched.

[0027] In addition, in order to make the movement of the lead screw 4 more precise and smooth, the length of the guide rail on a single sliding frame 5 is equal to the length of the thread on the surface of a lead screw 4 that is parallel to the guide rail, and rollers are installed at the bottom of the sliding adapter block 6.

[0028] Furthermore, to ensure precise adjustment, a Cartesian coordinate system is established in the computer within the area enclosed by the sliding frame 5, with any point as the origin. The two lead screws 4 serve as the X and Y axes, respectively. Each point covered by the threaded section of the lead screw 4 during its horizontal or vertical movement is represented by coordinates in the Cartesian coordinate system on the computer. The two ends of the internal threaded section of the threaded sleeve 31 are displayed in the coordinate system through corresponding coordinate points. By adjusting the coordinates of the two ends of the internal threaded section of the threaded sleeve 31, the requirement for precise control of the movement distance of the threaded sleeve 31 can be achieved. The addition or subtraction of the coordinate values ​​is proportional to the number of rotations of the lead screw 4. By adding or subtracting a certain number of coordinate values, the lead screw 4 will rotate a certain number of times to accurately reach the corresponding position.

[0029] Furthermore, the length and height of each slide rail 7 are adapted to the length and height of the nearest slide frame 5 guide rail, enabling the second servo motor 41 to slide smoothly.

[0030] Specifically, both second servo motors 41 are controlled to rotate by a program in the computer. For the destination coordinates input by the computer, the second servo motor 41 that drives the threaded sleeve 31 to move horizontally on the "X" axis rotates first. The second servo motor 41 that drives the threaded sleeve 31 to move horizontally on the "Y" axis rotates after the threaded sleeve 31 reaches the "X" axis point. When the control computer reads the input coordinates, one of the second servo motors 41, which is the "X" axis, starts and drives the connected lead screw 4 to rotate a specified number of revolutions. After reaching the "X" point, the other second servo motor 41 starts and drives the other connected lead screw 4 to rotate to the "Y" point.

[0031] When the micro-adjustment mechanism of the injection molding die of this utility model needs to be adjusted, the position coordinates or rotation angle to be adjusted can be input into the computer. The computer is wirelessly connected to the first servo motor 2 and the second servo motor 41 and controlled by the program. The second servo motor 41 located on the "X" axis starts and drives the lead screw 4 to rotate first. The moving base 3 follows the movement. The lead screw 4 on the "Y" axis and the second servo motor 41 on the "Y" axis slide together. After reaching the "X" point, the lead screw 4 on the "Y" axis and the second servo motor 41 on the "Y" axis rotate again and drive the moving base 3 to slide together to the required point. Then, the rotation angle is input into the computer to control the precise rotation of the mold carrier 1.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to these embodiments without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fine adjustment mechanism for an injection molding mold, characterized by: The utility model provides a kind of injection moulding machine, including the mould carrier (1) for placing injection moulding mould at the top of mechanism, the movable base (3) is provided with the bottom of the mould carrier (1), the top of the movable base (3) is opened and is contained with the first servo motor (2) being connected with the bottom of the mould carrier (1) in the cavity in the inside, the bottom of the movable base (3) is accommodated with two horizontal vertical interlaced lead screws (4) by the two vertical interlaced thread sleeve (31) of integrally formed, the both ends of each the lead screw (4) are equipped with the same length and vertical with this the lead screw (4) sliding frame (5), the lead screw (4) is slidably connected with the guide rail of the sliding frame (5) by the sliding adapter block (6) of both ends rotation connection, one end of each the lead screw (4) is connected with the second servo motor (41) and is connected with the sliding adapter block (6), the bottom of each the second servo motor (41) is slidably connected with the slide rail (7) being parallel with the same side guide rail and being equal length, the controller of the first servo motor (2) and the second servo motor (41) is connected with computer for identifying positioning instruction by wireless network.

2. The trim mechanism for an injection molding tool of claim 1, wherein: The top of the mould carrier (1) is provided with a threaded hole for fixing the injection molding mold, the side wall and the bottom of the mould carrier (1) are fixedly connected with the output shaft of the first servo motor (2) by bolts, and the movable base (3), the first servo motor (2) inside the movable base (3) and the mould carrier (1) are all in a horizontal state.

3. The trim mechanism for an injection molding tool of claim 1, wherein: The first servo motor (2) is fixed on the inner wall of the movable base (3) by bolts, the rotation angle of the first servo motor (2) is controlled by the positioning instruction input by the computer, and the whole movable base (3) is not in contact with the sliding frame (5) except the two ends of the thread sleeve (31).

4. The trim mechanism for an injection molding tool of claim 1, wherein: The length of the thread sleeve (31) is less than the length of the lead screw (4), the length of the thread segment inside the thread sleeve (31) is less than or equal to the length of the sleeve body of the thread sleeve (31), the movable range of the thread segment inside the thread sleeve (31) is equal to the length of the thread segment of the lead screw (4), and the thread densities of the two lead screws (4) are equal and the lengths are adapted.

5. The trim mechanism for an injection molding tool of claim 1, wherein: The length of the guide rail on the sliding frame (5) is equal to the length of the surface thread of the lead screw (4) parallel thereto, and the bottom of the sliding adapter block (6) is provided with a roller.

6. The trim mechanism for an injection mold of claim 1, wherein: In the computer, a plane rectangular coordinate system is established with an arbitrary point in the area surrounded by the sliding frame (5) as the origin, and the two lead screws (4) are respectively taken as the X and Y axes. Each place covered by the thread segment of the lead screw (4) during horizontal or vertical movement is represented by the coordinates of the plane coordinate system on the computer, the two ends of the thread segment inside the thread sleeve (31) are displayed by the corresponding coordinate points in the coordinate system, and the addition and subtraction of the coordinate values are in a geometric progression relationship with the number of turns of the lead screw (4).

7. The trim mechanism for an injection mold of claim 1, wherein: The length and height of each slide rail (7) are adapted to the length and height of the nearest guide rail of the sliding frame (5).

8. The trim mechanism for an injection molding tool of claim 6, wherein: For the destination coordinates input by computer, the second servo motor (41) driving the threaded sleeve (31) to move horizontally on the "X" axis is given priority to rotate, and the second servo motor (41) driving the threaded sleeve (31) to move horizontally on the "Y" axis rotates after the threaded sleeve (31) reaches the "X" axis point.

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