Shaping tool for injection molded part

Abstract

The utility model discloses a shaping tool for injection molding parts, relates to the technical field of processing of injection molding parts, and solves the problems that a shaping mechanism is in a fixed state, the limitation of shaping injection molding parts with different widths is large, and the application of the whole tool is single. Four pressure sensors are fixed to the inner wall of the mounting groove, and the upper surfaces of the four pressure sensors are connected with placing plates. By unscrewing the limiting bolts, releasing the fixation of the mounting seats, moving the mounting seats in the horizontal direction and adjusting the distance among the three mounting seats under the matching of the adjusting grooves and the sliding blocks, through the assembling grooves formed in the placing plate, after the clamping blocks are aligned with the assembling grooves, the capacity expansion plate is pushed in the horizontal direction, and the mounting seats are fixed. The expansion plate can be assembled on the placing plate, the width of the placing plate is increased, it is guaranteed that wide injection molding parts can be shaped normally, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding processing, and in particular to a shaping fixture for injection molded parts. Background Technology

[0002] Injection molded parts refer to all injection-molded products produced by injection molding machines, including various packaging materials and parts. They are mainly made of materials such as polyethylene or polypropylene with the addition of various organic solvents. The choice of plastic parts is primarily determined by the type of plastic, its initial form, and the shape and size of the product. Injection molding is generally carried out using compression molding, transfer molding, or injection molding. Due to its inherent characteristics, injection molded parts will deform during placement, requiring reshaping to restore their original shape.

[0003] A Chinese utility model patent (publication number: CN219988288U) discloses a shaping fixture for injection molded parts, comprising a base for supporting the injection molded part, and a leather groove for placing the injection molded part on the upper surface of the base. Multiple quick-clamps are arranged around the outer periphery of the leather groove. The injection molded part is placed inside the leather groove, and the quick-clamps press the part in place, fixing its shape. It can control the shaping head on the quick-clamp side to clamp and fix the shape of the injection molded part according to the different usage requirements of the injection molded part, effectively preventing deformation during cooling, reducing product deformation, meeting welding requirements, and featuring a simple and reliable structure. It effectively reduces injection molded part deformation, prevents subsequent welding defects, lowers development costs, and improves work efficiency.

[0004] The above technical solution uses a quick clamp to clamp and fix the shape of the injection molded part according to the usage requirements of different injection molded parts by controlling the shaping head on the quick clamp side. However, when in use, since the shaping mechanism is in a fixed state, it has great limitations in shaping injection molded parts of different widths, resulting in a relatively simple application of this shaping fixture. Therefore, a shaping fixture for injection molded parts is proposed now. Utility Model Content

[0005] To address the limitation of a fixed forming mechanism for shaping injection molded parts of varying widths, which restricts the application of such fixtures, this invention provides a forming fixture for injection molded parts.

[0006] This utility model provides a forming fixture for injection molded parts, which adopts the following technical solution:

[0007] A forming fixture for injection molded parts includes a mounting base with an internal mounting groove. Four pressure sensors are fixed to the inner wall of the mounting groove. A placement plate is connected to the upper surface of each of the four pressure sensors. Three sets of mounting seats are mounted on the upper surface of the mounting base. A slider is fixed to the lower end of each of the three sets of mounting seats. An adjustment groove on the mounting base is slidably connected to the lower end of each slider. Limit bolts are installed on the side walls of each of the three sets of mounting seats, with the ends of the limit bolts abutting against the upper surface of the mounting base. Assembly grooves are formed on both sides of the placement plate. A locking block is slidably inserted into the assembly groove, and an expansion plate is fixed to one side of each locking block.

[0008] By adopting the above technical solution, the mounting base is released from its fixation by loosening the limiting bolts. With the cooperation of the adjusting groove and the slider, the mounting base is moved horizontally to adjust the distance between the three mounting bases. After aligning the locking block with the assembly groove opened on the placement plate, the expansion plate is pushed horizontally to assemble the expansion plate onto the placement plate, increasing the width of the placement plate and ensuring that wider injection molded parts can be properly shaped, thus improving practicality.

[0009] Optionally, each of the three sets of mounting bases has two fixing plates symmetrically arranged on its upper surface, and each of the two fixing plates has a fixing bolt installed on one side.

[0010] By adopting the above technical solution, the fixing plate and the mounting base can be disassembled by unscrewing the fixing bolts on the fixing plate, which facilitates maintenance.

[0011] Optionally, each of the two fixing plates is connected to a handle inside, and a first hinge rod is fixed inside the handle. Both ends of the first hinge rod are rotatably connected to the inner wall of the fixing plate through bearings.

[0012] By adopting the above technical solution, the handle can be manually pushed, and the movement of the handle can be ensured by the first hinge rod, thereby driving the movement of the clamping mechanism.

[0013] Optionally, a second hinge rod is rotatably connected to one side of the handle via a bearing, and a drive rod is fixed to the outer wall of the second hinge rod.

[0014] By adopting the above technical solution, the drive rod can be driven to move under the action of the second hinge rod.

[0015] Optionally, the end of the drive rod is hinged to a movable frame, and the lower end of the movable frame is rotatably connected to the inner wall of the fixed plate via a bearing.

[0016] By adopting the above technical solution, the placed injection molded parts are flattened by rotating the movable frame, making them convenient to use.

[0017] Optionally, a screw is installed inside the movable frame, and a clamping plate is fixed to the end of the screw.

[0018] By adopting the above technical solution, the screw on the movable frame drives the clamping plate to flatten the injection molded part.

[0019] Optionally, both sides of the movable frame are provided with nuts that are threadedly connected to the screw.

[0020] By adopting the above technical solution, the two nuts on the screw are loosened to move them away from the movable frame, thus adjusting the position of the clamping plate. After adjustment, the nuts are tightened, which facilitates the flattening of injection molded parts of different thicknesses.

[0021] In summary, this utility model has the following beneficial effects:

[0022] This utility model loosens the limiting bolts to release the fixing of the mounting base. With the cooperation of the adjusting groove and the slider, the mounting base is moved horizontally to adjust the distance between the three mounting bases. After aligning the locking block with the assembly groove opened on the placement plate, the expansion plate is pushed horizontally to assemble the expansion plate onto the placement plate, increasing the width of the placement plate and ensuring that wider injection molded parts can be properly shaped, thus improving practicality.

[0023] This utility model features a manually operated push handle. The first hinge rod ensures the movement of the handle, thereby driving the pressing mechanism. The screw on the movable frame drives the pressing plate to flatten the injection molded part. By loosening the two nuts on the screw and moving them away from the movable frame, the position of the pressing plate can be adjusted. After adjustment, the nuts can be tightened, making it convenient to flatten injection molded parts of different thicknesses. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the mounting base of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the placement plate of this utility model;

[0027] Figure 4 This is a utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Mounting base; 2. Mounting slot; 3. Pressure sensor; 4. Placement plate; 5. Adjustment slot; 6. Slider; 7. Limit bolt; 8. Assembly slot; 9. Mounting seat; 10. Fixing plate; 11. Fixing bolt; 12. Handle; 13. First hinge rod; 14. Second hinge rod; 15. Drive rod; 16. Movable frame; 17. Screw; 18. Pressure plate; 19. Nut; 20. Locking block; 21. Expansion plate. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 A forming fixture for injection molded parts includes a mounting base 1, an mounting groove 2 inside the mounting base 1, four pressure sensors 3 fixed to the inner wall of the mounting groove 2, and a placement plate 4 connected to the upper surface of each of the four pressure sensors 3. Three sets of mounting seats 9 are mounted on the upper surface of the mounting base 1, and sliders 6 are fixed to the lower ends of each of the three sets of mounting seats 9. Adjustment grooves 5 on the mounting base 1 are slidably connected to the lower ends of the sliders 6. Limit bolts 7 are installed on the side walls of each of the three sets of mounting seats 9, with the ends of the limit bolts 7 abutting against the upper surface of the mounting base 1. Mounting plates 4 have mounting... The mounting slot 8 has a sliding insert of a locking block 20 inside. An expansion plate 21 is fixed to one side of the locking block 20. By loosening the limiting bolt 7, the mounting seat 9 is released from its fixation. With the cooperation of the adjusting slot 5 and the slider 6, the mounting seat 9 is moved horizontally to adjust the distance between the three mounting seats 9. After aligning the locking block 20 with the mounting slot 8 on the placement plate 4, the expansion plate 21 is pushed horizontally to assemble the expansion plate 21 onto the placement plate 4, increasing the width of the placement plate 4. This ensures that wider injection molded parts can be properly shaped, improving practicality.

[0032] Reference Figure 1 and Figure 4 Three sets of mounting seats 9 are fixed on the upper surface of the mounting base 1. Two fixing plates 10 are symmetrically arranged on the upper surface of each of the three sets of mounting seats 9. Fixing bolts 11 are installed on one side of each of the two fixing plates 10. By unscrewing the fixing bolts 11 on the fixing plates 10, the fixing plates 10 and the mounting seats 9 can be disassembled for easy maintenance. Handles 12 are connected inside the two fixing plates 10. A first hinge rod 13 is fixed inside the handle 12. Both ends of the first hinge rod 13 are rotatably connected to the inner wall of the fixing plate 10 through bearings. Manually pushing the handle 12 can ensure the movement of the handle 12 through the first hinge rod 13, thereby driving the pressing mechanism to move.

[0033] Reference Figure 1 Figure 3 and Figure 4 A second hinge rod 14 is rotatably connected to one side of the handle 12 via a bearing. A drive rod 15 is fixed to the outer wall of the second hinge rod 14. Under the action of the second hinge rod 14, the drive rod 15 can be driven to move. A movable frame 16 is hinged to the end of the drive rod 15. The lower end of the movable frame 16 is rotatably connected to the inner wall of the fixed plate 10 via a bearing. By rotating the movable frame 16, the placed injection molded part is flattened for easy use. A screw 17 is installed inside the movable frame 16. A pressure plate 18 is fixed to the end of the screw 17. The screw 17 on the movable frame 16 drives the pressure plate 18 to flatten the injection molded part. Nuts 19 that are threadedly connected to the screw 17 are provided on both sides of the movable frame 16. By loosening the two nuts 19 on the screw 17 and moving the nuts 19 away from the movable frame 16, the position of the pressure plate 18 can be adjusted. After adjustment, the nuts 19 can be tightened to facilitate flattening injection molded parts of different thicknesses.

[0034] The implementation principle of this utility model is as follows: Before using the shaping fixture for injection molded parts, first place the mounting base 1 in a suitable position. Then, place the injection molded part to be shaped onto the placement plate 4 provided on the mounting base 1. Manually push the handle 12, which, through the first hinge rod 13 and the second hinge rod 14, causes the drive rod 15 to move, thereby rotating the movable frame 16. This causes the screw 17 on the movable frame 16 to drive the pressure plate 18 to flatten the injection molded part. The other two flattening mechanisms are driven using the same method. Loosen the two nuts 19 on the screw 17 to move them away from the movable frame 16, thus adjusting the position of the pressure plate 18. After adjustment, tighten the nuts 19. This facilitates flattening injection molded parts of different thicknesses and, by fixing… Unscrewing the fixing bolts 11 on plate 10 allows for the disassembly of the fixing plate 10 and mounting base 9, facilitating maintenance. When pressing the injection molded part, the pressure sensor 3 inside the mounting groove 2 detects the pressure applied to the injection molded part and displays it on an external display screen for easy use. When it is necessary to shape injection molded parts of different widths, the limiting bolts 7 can be loosened to release the fixing of the mounting base 9. With the cooperation of the adjusting groove 5 and the slider 6, the mounting base 9 can be moved horizontally to adjust the distance between the three mounting bases 9. By aligning the locking block 20 with the mounting groove 8 on the placement plate 4, the expansion plate 21 can be pushed horizontally to assemble the expansion plate 21 onto the placement plate 4, thereby increasing the width of the placement plate 4 and ensuring that wider injection molded parts can be shaped normally, improving practicality.

[0035] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A shaping tool for injection molded parts, comprising a mounting base (1), characterized in that: The mounting base (1) has an internal mounting groove (2). Four pressure sensors (3) are fixed on the inner wall of the mounting groove (2). The upper surfaces of the four pressure sensors (3) are connected to a placement plate (4). Three sets of mounting seats (9) are placed on the upper surface of the mounting base (1). The lower ends of the three sets of mounting seats (9) are fixed with sliders (6). The lower ends of the sliders (6) are slidably connected to an adjustment groove (5) on the mounting base (1). Limiting bolts (7) are installed on the side walls of the three sets of mounting seats (9). The ends of the limiting bolts (7) are abutted against the upper surface of the mounting base (1). Assembly grooves (8) are opened on both sides of the placement plate (4). A locking block (20) is slidably inserted into the interior of the assembly groove (8). An expansion plate (21) is fixed on one side of the locking block (20).

2. A trim tool for an injection molded part as defined in claim 1, wherein: The upper surfaces of the three sets of mounting bases (9) are symmetrically provided with two fixing plates (10), and fixing bolts (11) are installed on one side of each of the two fixing plates (10).

3. A trim tool for an injection molded part as defined in claim 2, wherein: Both of the fixed plates (10) are connected to a handle (12), and a first hinge rod (13) is fixed inside the handle (12). Both ends of the first hinge rod (13) are rotatably connected to the inner wall of the fixed plate (10) through bearings.

4. A trim tool for an injection molded part as defined in claim 3, wherein: One side of the handle (12) is rotatably connected to a second hinge rod (14) via a bearing, and a drive rod (15) is fixed to the outer wall of the second hinge rod (14).

5. A trim tool for an injection molded part as defined in claim 4, wherein: The end of the drive rod (15) is hinged to a movable frame (16), and the lower end of the movable frame (16) is rotatably connected to the inner wall of the fixed plate (10) through a bearing.

6. A trim tool for an injection molded part as defined in claim 5, wherein: The movable frame (16) is equipped with a screw (17) inside, and a clamping plate (18) is fixed to the end of the screw (17).

7. A trim tool for an injection molded part as defined in claim 6, wherein: Both sides of the movable frame (16) are provided with nuts (19) that are threadedly connected to the screw (17).

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