A shaping device for suppressing warpage of an injection molded part

Abstract

The application discloses a shaping device for inhibiting warping deformation of injection molding parts, relates to the technical field of shaping devices, and comprises a mounting frame, a workbench is threadedly mounted on the mounting frame, a pressing plate assembly is mounted on the workbench, two U-shaped plates are mounted on the workbench, movable plates are slidably mounted on the two U-shaped plates, rotating shafts are rotatably mounted on the sides of the two movable plates that are close to each other, and the like. When the mounting frame is used for shaping the warping deformation injection molding parts, the servo motor is used to drive the rotating shaft to rotate, the rotating shaft is used to drive the moving shaft to move, the moving shaft is used to drive the pressing plate assembly to move forward and backward, the pressing plate assembly is moved to the position where the injection molding part needs to be shaped and corrected, and then the driving mode on the mounting frame is used to drive the pressing plate to move downward to shape the injection molding part.

Description

Technical Field

[0001] This invention relates to the field of shaping device technology, and in particular to a shaping device for suppressing warping deformation of injection molded parts. Background Technology

[0002] Because the demolding temperature of plastic parts is relatively high, severe secondary shrinkage deformation will occur during the free cooling process, affecting the quality of the plastic parts. While existing technologies exist for stabilizing warpage in injection molded parts, these devices can only be adjusted at a certain angle and cannot adjust the pressure plate to any arbitrary position. Therefore, when using a pressure plate to suppress warpage, the limited movement of the pressure plate means that warped parts cannot be completely repaired. Thus, a stabilizing device to suppress warpage in injection molded parts is needed to meet this demand. Summary of the Invention

[0003] The purpose of this invention is to provide a shaping device for suppressing warping deformation of injection molded parts, so as to solve the problem mentioned in the background art that the existing pressure plate can only be adjusted at a fixed position and cannot be moved to any position of warping deformation of injection molded parts for repair.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a shaping device for suppressing warping deformation of injection molded parts, comprising a mounting frame, a worktable threaded onto the mounting frame, a pressure plate assembly mounted on the worktable, two U-shaped plates mounted on the worktable, movable plates slidably mounted on each of the two U-shaped plates, a rotating shaft rotatably mounted on one side of the two movable plates that are close to each other, a closed curved groove opened on the rotating shaft, a movable shaft slidably mounted on the inner wall of the closed curved groove, a cross block mounted on the movable shaft, and the cross block mounted on the pressure plate assembly.

[0005] Preferably, two connecting rods are installed on the movable plate located on one side, and gears are rotatably installed on the connecting rods. Gears mesh with toothed plates, and the toothed plates are installed on the U-shaped plate on one side.

[0006] Preferably, a plurality of support rods are mounted on the movable plate located on one side, and servo motors are mounted on the plurality of support rods, with rotating shafts mounted on the servo motors.

[0007] Preferably, a fixing plate is installed on the two movable plates, and a cross hole is opened on the fixing plate, and the cross block is slidably installed in the cross hole.

[0008] Preferably, a limiting groove is provided on the U-shaped plate, and the movable plate is slidably installed in the limiting groove.

[0009] Preferably, an electric telescopic rod is mounted on the gear, and two drive rods are rotatably mounted on the electric telescopic rod. A positioning block is mounted on the distal end of each of the two drive rods, and both positioning blocks are in contact with the inner wall of the rotating shaft.

[0010] Preferably, two adjusting rods are movably mounted on one side of the gear, and two drive rods are rotatably mounted on the two adjusting rods respectively.

[0011] The beneficial effects of this invention are:

[0012] In this invention, by setting up structures such as a rotating shaft, a cross block, a movable plate, and a moving shaft, when using a mounting frame to shape a warped injection molded part, a servo motor is first used to drive the rotating shaft to rotate, the rotating shaft drives the moving shaft to move, and the moving shaft drives the pressure plate assembly to move back and forth, moving the pressure plate assembly to the position where the injection molded part needs to be shaped. Then, the driving method on the mounting frame is used to drive the pressure plate to move downward to shape the injection molded part.

[0013] In this invention, by setting up structures such as gears, toothed plates, electric telescopic rods, and positioning blocks, when the pressure plate assembly cannot be moved to the required shaping position by simply moving back and forth, the electric telescopic rod drives the drive rod to rotate. The drive rod drives the positioning block to press against the inner wall of the rotating shaft, which facilitates the rotating shaft to drive the gear to rotate synchronously. The gear meshes and rotates on the toothed plate of the U-shaped plate, causing the pressure plate assembly to move left and right. This makes it easy to move the pressure plate assembly to any deformable position on the injection molded part to shape the warped position of the injection molded part. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the connection structure of the U-shaped plate, gear, and rotating shaft of the shaping device for suppressing warping deformation of injection molded parts proposed in this invention;

[0015] Figure 2 This is a schematic diagram of the structure of a shaping device for suppressing warping deformation of injection molded parts according to the present invention;

[0016] Figure 3 This is a schematic diagram of the connection structure of the toothed plate, gear, and rotating shaft of a shaping device for suppressing warping deformation of injection molded parts according to the present invention;

[0017] Figure 4 This is a cross-sectional structural diagram of the gears, movable plate, and rotating shaft of a shaping device for suppressing warping deformation of injection molded parts according to the present invention.

[0018] In the diagram: 1. Mounting bracket; 2. Workbench; 3. Pressure plate assembly; 4. U-shaped plate; 5. Servo motor; 6. Gear plate; 7. Limiting groove; 8. Gear; 9. Connecting rod; 10. Movable plate; 11. Fixed plate; 12. Rotating shaft; 13. Support rod; 14. Closed curved groove; 15. Moving shaft; 16. Cross block; 17. Cross hole; 18. Adjusting rod; 19. Electric telescopic rod; 20. Drive rod; 21. Positioning block. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figure 1-4 A shaping device for suppressing warping deformation of injection molded parts includes a mounting frame 1, a worktable 2 threaded onto the mounting frame 1, a pressure plate assembly 3 mounted on the worktable 2, two U-shaped plates 4 mounted on the worktable 2, movable plates 10 slidably mounted on each of the two U-shaped plates 4, a rotating shaft 12 rotatably mounted on one side of the two movable plates 10 that is close to each other, a closed curved groove 14 opened on the rotating shaft 12, a moving shaft 15 slidably mounted on the inner wall of the closed curved groove 14, a cross block 16 mounted on the moving shaft 15, and the cross block 16 mounted on the pressure plate assembly 3. A servo motor 5 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the moving shaft 15 to move, and the moving shaft 15 drives the pressure plate assembly 3 to move back and forth, moving the pressure plate assembly 3 to the position where the injection molded part needs to be shaped, and then the pressure plate is driven downward by the drive mechanism on the mounting frame 1 to perform the shaping process on the injection molded part.

[0021] Reference Figure 2-3 In this invention, two connecting rods 9 are installed on the movable plate 10 located on one side. A gear 8 is rotatably installed on the connecting rod 9. A toothed plate 6 meshes with the gear 8. The toothed plate 6 is installed on the U-shaped plate 4 on one side. The electric telescopic rod 19 drives the drive rod 20 to rotate. The drive rod 20 drives the positioning block 21 to press the inner wall of the rotating shaft 12, so that the rotating shaft 12 drives the gear 8 to rotate synchronously. The gear 8 meshes with the toothed plate 6 on the U-shaped plate 4 and rotates, driving the pressure plate assembly 3 to move left and right, so as to facilitate moving the pressure plate assembly 3 to any deformation position on the injection molded part for shaping and correction.

[0022] Reference Figure 1 In this invention, a plurality of support rods 13 are installed on the movable plate 10 located on one side, and a servo motor 5 is installed on the plurality of support rods 13. A rotating shaft 12 is installed on the servo motor 5. The servo motor 5 on the support rod 13 drives the rotating shaft 12 to rotate, thereby providing power for the back-and-forth movement of the pressure plate assembly 3.

[0023] Reference Figure 3 In this invention, a fixed plate 11 is installed on two movable plates 10. A cross hole 17 is provided on the fixed plate 11. A cross block 16 is slidably installed in the cross hole 17. By sliding the cross block 16 in the cross hole 17 on the fixed plate 11, the pressure plate assembly 3 can be accurately moved to the required position when moving back and forth without deviation.

[0024] Reference Figure 1 , 3 In this invention, a limiting groove 7 is provided on the U-shaped plate 4, and the movable plate 10 is slidably installed in the limiting groove 7. By moving the movable plate 10 in the limiting groove 7 on the U-shaped plate 4, the pressure plate assembly 3 can move precisely left and right.

[0025] Reference Figure 4 In this invention, an electric telescopic rod 19 is installed on the gear 8, and two drive rods 20 are rotatably installed on the electric telescopic rod 19. A positioning block 21 is installed at the far end of each of the two drive rods 20, and both positioning blocks 21 are in contact with the inner wall of the rotating shaft 12. Two adjusting rods 18 are movably installed on one side of the gear 8, and the two drive rods 20 are rotatably installed on the two adjusting rods 18 respectively. When the pressure plate assembly 3 cannot be moved to the required shaping position by only moving back and forth, the electric telescopic rod 19 drives the drive rods 20 on the adjusting rods 18 to rotate. The drive rods 20 drive the positioning blocks 21 to press against the inner wall of the rotating shaft 12, thereby facilitating the rotating shaft 12 to drive the gear 8 on the connecting rod 9 to rotate synchronously. The gear 8 meshes and rotates on the toothed plate 6 on the U-shaped plate 4, driving the pressure plate assembly 3 to move left and right.

[0026] Working principle of this invention:

[0027] When using mounting bracket 1 to shape a warped injection molded part, servo motor 5 drives the rotating shaft 12 on the movable plate 10 to rotate. The rotating shaft 12 drives the closed curved groove 14 to rotate, which in turn drives the moving shaft 15 to move. The moving shaft 15 causes the cross block 16 in the cross hole 17 on the fixed plate 11 to slide. The cross block 16 then moves the pressure plate assembly 3 back and forth, positioning it at the desired shape of the injection molded part. The mounting bracket 1 then drives the pressure plate downwards to shape the injection molded part. This process is repeated when only the back and forth movement is performed. When the pressure plate assembly 3 cannot be moved to the required shaping position, the electric telescopic rod 19 drives the drive rod 20 on the adjusting rod 18 to rotate. The drive rod 20 drives the positioning block 21 to press the inner wall of the rotating shaft 12, so that the rotating shaft 12 drives the gear 8 on the connecting rod 9 to rotate synchronously. The gear 8 meshes and rotates on the toothed plate 6 on the U-shaped plate 4, driving the movable plate 10 to move. The movement of the movable plate 10 drives the fixed plate 11 to move. The movement of the fixed plate 11 drives the pressure plate assembly 3 to move left and right, so that the pressure plate assembly 3 can be moved to any deformable position on the injection molded part for shaping and correction.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A shaping device for suppressing warpage deformation of injection molded parts, characterized in that, Includes a mounting frame (1), a workbench (2), and a pressure plate assembly (3) mounted on the workbench (2). The workbench (2) is threaded onto the mounting frame (1). Two U-shaped plates (4) are mounted on the workbench (2). Each of the two U-shaped plates (4) has a limit groove (7). Two movable plates (10) are slidably mounted in the corresponding limit groove (7). A rotating shaft (12) is rotatably mounted on one side of the two movable plates (10) that are close to each other. Multiple support rods (13) are mounted on one side of the movable plate (10). Servo motors (5) are mounted on the multiple support rods (13). The rotating shaft (12) is mounted on the servo motors (5). A closed curved groove (14) is provided on the rotating shaft (12), and a movable shaft (15) is slidably installed on the inner wall of the closed curved groove (14). A cross block (16) is installed on the movable shaft (15); a fixed plate (11) is installed on the two movable plates (10), and a cross hole (17) is provided on the fixed plate (11). The cross block (16) is slidably installed in the cross hole (17), and the cross block (16) is installed on the pressure plate assembly (3); Two connecting rods (9) are installed on the movable plate (10) located on one side. Gears (8) are rotatably installed on the two connecting rods (9). A toothed plate (6) meshes with the gears (8). The toothed plate (6) is installed on the U-shaped plate (4) on one side. An electric telescopic rod (19) is installed on the gear (8). Two drive rods (20) are rotatably installed on the electric telescopic rod (19). A positioning block (21) is installed at the far end of each of the two drive rods (20). Both positioning blocks (21) are in contact with the inner wall of the rotating shaft (12). When the electric telescopic rod (19) extends or retracts, it drives the drive rod (20) to rotate and causes the positioning block (21) to press against the inner wall of the rotating shaft (12). This causes the rotating shaft (12) to drive the gear (8) to rotate synchronously. The gear (8) meshes and rotates on the toothed plate (6), thereby driving the pressure plate assembly (3) to move left and right.

2. The shaping device for suppressing warpage deformation of injection molded parts according to claim 1, characterized in that: Two adjusting rods (18) are movably mounted on one side of the gear (8), and two driving rods (20) are rotatably mounted on the two adjusting rods (18).

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