A material taking mechanism of an injection mold for an automobile accessory

Abstract

The utility model relates to the technical field of automobile parts injection moulding, especially to a material taking mechanism of automobile parts injection mould, including work table, the upper end of work table is installed to the demoulding mechanism that carries out injection demoulding to automobile gear, the upper end fixedly connected with support of work table, the upper end of support is installed motor, the lower extreme of support is installed to the trimming mechanism that carries out trimming to automobile gear, through the cooperation of round pin on carousel and sliding slot mechanism on trimming cutter, the rotation movement of second rotating shaft is converted into the stable, regular opening and closing shearing movement of trimming cutter, realizes the synchronous shearing to gear burr in revolution process.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts injection molding technology, and in particular to a material handling mechanism for automotive parts injection molds. Background Technology

[0002] In the automotive manufacturing industry, precision injection molded parts such as gears are widely used. After these parts are demolded, there are usually burrs and flashes left on the inner hole injection port and outer edge. They must be polished, trimmed and other subsequent treatments to meet assembly requirements.

[0003] Existing equipment is prone to gear misalignment during ejection and transfer in the mold. Subsequent processing is prone to problems such as burr residue and uneven shearing of flash due to reference deviation. Most trimming equipment cannot cover the local area of ​​the gear outer contour by the trimming knife, resulting in dead corners and flash residue, which requires secondary rework. In existing equipment, the opening and closing degree of the trimming knife is uneven and the shearing force is unstable, which can easily scratch the gear surface. Therefore, this utility model proposes a material handling mechanism for injection molds of automotive parts. Utility Model Content

[0004] The main objective of this invention is to provide a material handling mechanism for injection molds of automotive parts, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A material handling mechanism for an injection mold of automotive parts includes a worktable. A demolding mechanism for ejecting automotive gears from injection molding is installed at the upper end of the worktable. A bracket is fixedly connected to the upper end of the worktable. A motor is installed at the upper end of the bracket. A trimming mechanism for trimming automotive gears is installed at the lower end of the bracket.

[0007] Preferably, the demolding mechanism includes a demolding base fixedly connected to the worktable. A first electric telescopic rod is installed on the inner side of the demolding base. A first connecting rod is fixedly connected to the outer side of the output shaft of the first electric telescopic rod. Two symmetrical fixed rods are fixedly connected to the inner side of the first connecting rod. A support plate is fixedly connected to the upper end of the two fixed rods. A silicone pad is provided on the outer side of the support plate. The outer side of the support plate is slidably connected to the upper end of the demolding base.

[0008] Preferably, the upper end of the demolding base is fixedly connected to an installation shell, and two symmetrical second electric telescopic rods are installed on the inner side of the installation shell. The output shafts of the two second electric telescopic rods are fixedly connected to clamps.

[0009] Preferably, the trimming mechanism includes a first rotating shaft fixedly connected to the output shaft of the motor, a mounting block fixedly connected to the lower end of the first rotating shaft, and two symmetrical grinding discs fixedly connected to the outer side of the mounting block via the rotating shaft.

[0010] Preferably, a first gear is fixedly connected to the outer side of the first rotating shaft, a timing belt is meshed with the outer side of the first gear, a retaining tooth is arranged around the inner side of the timing belt, a second gear is meshed with the inner side of the timing belt through the retaining tooth, a second rotating shaft is fixedly connected to the inner side of the second gear, a second connecting rod is rotatably connected to the outer side of the second rotating shaft, and the other end of the second connecting rod is fixedly connected to the first rotating shaft.

[0011] Preferably, a turntable is fixedly connected to the lower end of the second rotating shaft, a round pin is fixedly connected to the lower end of the turntable, an arc-shaped sliding block is slidably connected to the outer side of the round pin via a slide bar, a slide rod is fixedly connected to the outer side of the arc-shaped sliding block, and the outer side of the slide rod is slidably connected to a linear guide groove opened at the lower end of the second connecting rod via a slider.

[0012] Preferably, the other end of the slide rod is fixedly connected to a mounting bracket, and the inner side of the mounting bracket is fixedly connected to two symmetrical third rotating shafts. The outer sides of the two third rotating shafts are slidably connected to a trimming knife through a sliding groove. The upper end of the trimming knife is rotatably connected to a fourth rotating shaft, and the upper ends of the two fourth rotating shafts are fixedly connected to the second connecting rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This device, through the cooperation of the support plate and the grinding disc, achieves the effect of lifting the formed gear and automatically positioning it to a precise processing height, laying the foundation for subsequent synchronous grinding and trimming processes and ensuring the uniformity of the processing benchmark; through the cooperation of the first rotating shaft driven by the motor and the second rotating shaft driven by the synchronous belt, the trimming knife rotates on its own axis while revolving around the gear, ensuring that the trimming action can accurately cover the entire outer contour of the gear; through the cooperation of the round pin on the turntable and the sliding groove mechanism on the trimming knife, the rotational motion of the second rotating shaft is transformed into a stable and regular opening and closing shearing motion of the trimming knife, realizing the synchronous shearing of the gear flash during the revolution. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the material handling mechanism of an injection mold for automotive parts according to this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the overall structure of the material handling mechanism of an injection mold for automotive parts according to this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the overall structure of the material handling and demolding mechanism of an injection mold for automotive parts according to this utility model.

[0019] Figure 4 This is a cross-sectional schematic diagram of the overall structure of the material handling and trimming mechanism of an injection mold for automotive parts according to this utility model.

[0020] Figure 5 This is a front view of the material handling and trimming mechanism of an injection mold for automotive parts according to the present invention.

[0021] Figure 6 This is a reverse view of the material handling and trimming mechanism of an injection mold for automotive parts according to this utility model.

[0022] In the diagram: 1. Workbench; 2. Demolding mechanism; 21. Demolding base; 22. First electric telescopic rod; 23. First connecting rod; 24. Fixed rod; 25. Support plate; 26. Mounting housing; 27. Second electric telescopic rod; 28. Clamping block; 3. Bracket; 4. Motor; 5. Trimming mechanism; 51. First rotating shaft; 52. Mounting block; 53. Grinding disc; 54. First gear; 55. Synchronous belt; 56. Second gear; 57. Second rotating shaft; 58. Second connecting rod; 59. Turntable; 510. Round pin; 511. Arc-shaped sliding block; 512. Sliding rod; 513. Mounting bracket; 514. Third rotating shaft; 515. Trimming knife; 516. Fourth rotating shaft. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1 - Figure 6The material handling mechanism of an injection mold for automotive parts shown includes a worktable 1. A demolding mechanism 2 for demolding automotive gears is installed on the upper end of the worktable 1. A bracket 3 is fixedly connected to the upper end of the worktable 1. A motor 4 is installed on the upper end of the bracket 3. A trimming mechanism 5 for trimming automotive gears is installed on the lower end of the bracket 3.

[0025] In this embodiment, the demolding mechanism 2 includes a demolding base 21 fixedly connected to the workbench 1. A first electric telescopic rod 22 is installed on the inner side of the demolding base 21. A first connecting rod 23 is fixedly connected to the outer side of the output shaft of the first electric telescopic rod 22. Two symmetrical fixed rods 24 are fixedly connected to the inner side of the first connecting rod 23. A support plate 25 is fixedly connected to the upper end of the two fixed rods 24. A silicone pad is provided on the outer side of the support plate 25. The outer side of the support plate 25 is slidably connected to the upper end of the demolding base 21.

[0026] Specifically, the demolding base 21 provides a stable mounting foundation for the entire demolding mechanism 2, ensuring that the positions of each component are fixed; the first electric telescopic rod 22 serves as the lifting power source, driving the first connecting rod 23 to rise and fall synchronously through the extension and retraction of the output shaft, and then the first connecting rod 23 transmits the power to two symmetrical fixed rods 24 to realize the vertical lifting and lowering of the support plate 25; the support plate 25 directly bears the injection-molded gear, and its sliding connection with the demolding base 21 can limit the movement trajectory of the support plate 25, avoid deviation during the lifting process, and ensure that the gear can be accurately lifted to the target height; the silicone pad on the outside of the support plate 25 can buffer the rigid contact between the support plate 25 and the gear, prevent the gear surface from being scratched, and protect the appearance and precision of the workpiece.

[0027] In this embodiment, the upper end of the demolding base 21 is fixedly connected to the mounting shell 26, and two symmetrical second electric telescopic rods 27 are installed on the inner side of the mounting shell 26. The output shafts of the two second electric telescopic rods 27 are fixedly connected to clamps 28.

[0028] Specifically, the mounting housing 26 is fixed to the upper end of the demolding base 21, providing mounting support and protection for the second electric telescopic rod 27 and the clamping blocks 28. During the injection molding process, the two clamping blocks 28 can be stored inside the mounting housing 26. When in use, they extend inward along with the second electric telescopic rod 27. The shape of the clamping blocks 28 is adapted to the inner hole of the gear. When the clamping blocks 28 extend inward and fit against the inner wall of the gear, they can be radially fixed from inside the gear to prevent the gear from rotating or shifting during subsequent grinding and trimming, thus ensuring the stability of the processing reference.

[0029] In this embodiment, the trimming mechanism 5 includes a first rotating shaft 51 fixedly connected to the output shaft of the motor 4. A mounting block 52 is fixedly connected to the lower end of the first rotating shaft 51. Two symmetrical grinding discs 53 are fixedly connected to the outer side of the mounting block 52 through the rotating shaft.

[0030] Specifically, the first rotating shaft 51 serves as the core power transmission component of the trimming mechanism 5. One end is fixed to the output shaft of the motor 4, which can directly transmit the rotational power of the motor 4 to the mounting block 52 at the lower end. The mounting block 52 provides a mounting carrier for the grinding disc 53. Its fixed connection with the first rotating shaft 51 ensures that the grinding disc 53 can rotate synchronously with the first rotating shaft 51. The two symmetrical grinding discs 53 are connected to the mounting block 52 through the rotating shaft and can rotate flexibly around their own rotating shaft. When the gear is lifted to align with the grinding disc 53, the rotational motion of the grinding disc 53 can accurately act on the burrs at the upper opening of the gear, achieving efficient removal of burrs.

[0031] In this embodiment, a first gear 54 is fixedly connected to the outer side of the first rotating shaft 51, a timing belt 55 is meshed with the outer side of the first gear 54, a retaining tooth is arranged around the inner side of the timing belt 55, a second gear 56 is meshed with the inner side of the timing belt 55 through the retaining tooth, a second rotating shaft 57 is fixedly connected to the inner side of the second gear 56, a second connecting rod 58 is rotatably connected to the outer side of the second rotating shaft 57, and the other end of the second connecting rod 58 is fixedly connected to the first rotating shaft 51.

[0032] Specifically, the first gear 54 is fixed to the outside of the first rotating shaft 51 and rotates synchronously with the first rotating shaft 51. It transmits rotational power to the synchronous belt 55 by meshing with the teeth on the inside of the synchronous belt 55. The synchronous belt 55 meshes with the second gear 56 through the teeth on its inside to achieve stable power transmission from the first gear 54 to the second gear 56, ensuring the transmission synchronization between the first rotating shaft 51 and the second rotating shaft 57. The second gear 56 is fixedly connected to the second rotating shaft 57 and can drive the second rotating shaft 57 to rotate. One end of the second connecting rod 58 is fixed to the first rotating shaft 51 and the other end is rotatably connected to the second rotating shaft 57. When the first rotating shaft 51 rotates, the second connecting rod 58 can drive the second rotating shaft 57 to revolve around the first rotating shaft 51, providing a motion basis for the trimming knife 515 to cover the outer contour of the gear.

[0033] In this embodiment, a turntable 59 is fixedly connected to the lower end of the second rotating shaft 57, a round pin 510 is fixedly connected to the lower end of the turntable 59, an arc-shaped sliding block 511 is slidably connected to the outer side of the round pin 510 via a slide bar, a slide rod 512 is fixedly connected to the outer side of the arc-shaped sliding block 511, and the outer side of the slide rod 512 is slidably connected to the linear guide groove opened at the lower end of the second connecting rod 58 via a slider.

[0034] Specifically, the turntable 59 is fixed to the lower end of the second rotating shaft 57 and rotates synchronously with the second rotating shaft 57, providing an installation position for the round pin 510; the round pin 510 is vertically fixed to the lower end of the turntable 59 and makes a circular motion when the turntable 59 rotates. Its outer slide bar can be embedded in the groove of the arc-shaped sliding block 511, and the circular motion is converted into the linear motion of the arc-shaped sliding block 511 through sliding cooperation; the arc-shaped sliding block 511 is fixedly connected to the slide rod 512 and can drive the slide rod 512 to move synchronously; the slider on the outer side of the slide rod 512 is slidably connected to the linear guide groove of the second connecting rod 58. The linear guide groove can limit the movement trajectory of the slide rod 512, ensuring that the slide rod 512 makes a stable reciprocating motion along a straight line, providing power and trajectory constraints for the opening and closing of the trimming knife 515.

[0035] In this embodiment, the other end of the slide rod 512 is fixedly connected to a mounting bracket 513. The inner side of the mounting bracket 513 is fixedly connected to two symmetrical third rotating shafts 514. The outer sides of the two third rotating shafts 514 are slidably connected to a trimming knife 515 through a sliding groove. The upper end of the trimming knife 515 is rotatably connected to a fourth rotating shaft 516. The upper ends of the two fourth rotating shafts 516 are fixedly connected to the second connecting rod 58.

[0036] Specifically, the mounting bracket 513 is fixed to the end of the slide rod 512 and moves synchronously with the reciprocating motion of the slide rod 512, providing a mounting carrier for the third rotating shaft 514; two symmetrical third rotating shafts 514 are fixed inside the mounting bracket 513, and their outer sides are embedded in the groove of the trimming knife 515. When the mounting bracket 513 moves, the third rotating shafts 514 can slide along the groove and push or pull the trimming knife 515; one end of the fourth rotating shaft 516 is fixed to the second connecting rod 58, and the other end is rotatably connected to the trimming knife 515, serving as the fulcrum for opening and closing the trimming knife 515; when the mounting bracket 513 drives the third rotating shaft 514 to move, the trimming knife 515 can rotate around the fourth rotating shaft 516 to realize the opening and closing shearing action, thereby precisely shearing the burrs on the outside of the gear.

[0037] Working principle: When the equipment is in use, the first electric telescopic rod 22 is activated, and its output shaft drives the two fixed rods 24 to move upward through the first connecting rod 23. The two fixed rods 24 drive the support plate 25 to move upward, pushing the gear formed on the upper end of the support plate 25 to the surface of the demolding base 21 until the upper end of the gear is aligned with the grinding disc 53. Then, the second electric telescopic rod 27 installed inside the mounting housing 26 is activated, and its output shaft drives the clamping block 28 to extend inward and fit against the inner wall of the gear to fix it.

[0038] Next, the motor 4 mounted on the upper end of the bracket 3 is started, and its output shaft drives the first rotating shaft 51 to rotate: on the one hand, the first rotating shaft 51 drives the mounting block 52 to rotate, and the mounting block 52 drives the grinding disc 53 to rotate through the rotating shaft to grind the burrs on the upper opening of the gear; on the other hand, the first rotating shaft 51 drives the first gear 54 to rotate, and the first gear 54 meshes with the timing belt 55 through the snap teeth, thereby driving the second gear 56 to rotate, and the second gear 56 further drives the second rotating shaft 57 to rotate.

[0039] Simultaneously, the second rotating shaft 57 drives the turntable 59 to rotate synchronously. The turntable 59 drives the arc-shaped sliding block 511 to move through the round pin 510. The arc-shaped sliding block 511 then pushes the slide rod 512 to reciprocate linearly along the linear guide groove on the second connecting rod 58. The slide rod 512 drives the mounting frame 513 to reciprocate. When the mounting frame 513 moves backward, the third rotating shaft 514 on its inner side moves backward along the slide groove on the outer side of the trimming knife 515, thereby pulling the trimming knife 515 and causing the two trimming knives 515 to rotate outward around the fourth rotating shaft 516 at their upper end, thus unfolding. When the mounting frame 513 moves forward, the third rotating shaft 514 pushes the trimming knife 515, causing the two trimming knives 515 to rotate inward, thus closing, thereby shearing the burrs on the outer side of the gear.

[0040] In addition, the first rotating shaft 51 drives the second connecting rod 58 to revolve around the center of the gear, and the second connecting rod 58 drives the second rotating shaft 57 to revolve synchronously; combined with the rotation of the second rotating shaft 57 driven by the second gear 56, the second rotating shaft 57 achieves rotation and revolution at the same time, and finally drives the trimming knife 515 to achieve the trimming action of opening and closing while rotating along the outside of the gear.

[0041] 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 illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A material handling mechanism for an injection mold for automotive parts, comprising a worktable (1), characterized in that: The upper end of the workbench (1) is equipped with a demolding mechanism (2) for injection molding and demolding of automotive gears. The upper end of the workbench (1) is fixedly connected with a bracket (3). The upper end of the bracket (3) is equipped with a motor (4). The lower end of the bracket (3) is equipped with a trimming mechanism (5) for trimming automotive gears.

2. The material handling mechanism for an injection mold for automotive parts according to claim 1, characterized in that: The demolding mechanism (2) includes a demolding base (21) fixedly connected to the workbench (1). A first electric telescopic rod (22) is installed on the inner side of the demolding base (21). A first connecting rod (23) is fixedly connected to the outer side of the output shaft of the first electric telescopic rod (22). Two symmetrical fixed rods (24) are fixedly connected to the inner side of the first connecting rod (23). A support plate (25) is fixedly connected to the upper end of the two fixed rods (24). A silicone pad is provided on the outer side of the support plate (25). The outer side of the support plate (25) is slidably connected to the upper end of the demolding base (21).

3. The material handling mechanism for an automotive parts injection mold according to claim 2, characterized in that: The upper end of the demolding base (21) is fixedly connected to the mounting shell (26), and two symmetrical second electric telescopic rods (27) are installed on the inner side of the mounting shell (26). The output shafts of the two second electric telescopic rods (27) are fixedly connected to clamps (28).

4. The material handling mechanism for an automotive parts injection mold according to claim 1, characterized in that: The trimming mechanism (5) includes a first rotating shaft (51) fixedly connected to the output shaft of the motor (4). A mounting block (52) is fixedly connected to the lower end of the first rotating shaft (51). Two symmetrical grinding discs (53) are fixedly connected to the outer side of the mounting block (52) through the rotating shaft.

5. The material handling mechanism for an injection mold for automotive parts according to claim 4, characterized in that: A first gear (54) is fixedly connected to the outer side of the first rotating shaft (51). A timing belt (55) is meshed with the outer side of the first gear (54). A retaining tooth is arranged around the inner side of the timing belt (55). A second gear (56) is meshed with the inner side of the timing belt (55) through the retaining tooth. A second rotating shaft (57) is fixedly connected to the inner side of the second gear (56). A second connecting rod (58) is rotatably connected to the outer side of the second rotating shaft (57). The other end of the second connecting rod (58) is fixedly connected to the first rotating shaft (51).

6. The material handling mechanism for an automotive parts injection mold according to claim 5, characterized in that: The lower end of the second rotating shaft (57) is fixedly connected to a turntable (59), the lower end of the turntable (59) is fixedly connected to a round pin (510), the outer side of the round pin (510) is slidably connected to an arc-shaped sliding block (511) via a slide bar, the outer side of the arc-shaped sliding block (511) is fixedly connected to a slide rod (512), and the outer side of the slide rod (512) is slidably connected to a linear guide groove opened at the lower end of the second connecting rod (58) via a slider.

7. The material handling mechanism for an injection mold for automotive parts according to claim 6, characterized in that: The other end of the slide rod (512) is fixedly connected to a mounting bracket (513). The inner side of the mounting bracket (513) is fixedly connected to two symmetrical third rotating shafts (514). The outer sides of the two third rotating shafts (514) are slidably connected to trimming blades (515) through sliding grooves. The upper end of the trimming blades (515) is rotatably connected to a fourth rotating shaft (516). The upper ends of the two fourth rotating shafts (516) are fixedly connected to the second connecting rod (58).

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