Water gap milling device for injection molding part

Abstract

The utility model provides the water gap milling device for the injection-molded part, which is used for milling the water gap at the thin-wall position of the injection-molded part, effectively protecting the yield of the injection-molded part and improving the water gap milling efficiency. Comprising a machine table, a feeding module and a milling cutter module, at least one jig module is connected to the feeding module in a driving mode, each jig module comprises a carrier plate, a spinning positioning assembly and a protection assembly, and a rotating coping assembly is arranged at any side end of the carrier plate and used for fixing a product to the carrier plate in the vertical direction; the protection assembly comprises a horizontal air cylinder and a protection ejector rod in driving connection with the horizontal air cylinder, a milling abutting plate is further arranged at the position, corresponding to a water gap of a product, of the carrier plate, the protection ejector rod corresponds to the milling abutting plate in position, and a milling opening is further formed in the milling abutting plate. The utility model is suitable for the technical field of injection molding part processing.

Description

Technical Field

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

[0002] Most electronic product casings require milling gates after injection molding and demolding. Due to the characteristics of the products, there are thin and weak areas on the casings, such as heat dissipation vents. If the gate is located at a heat dissipation vent or other weak area, conventional milling equipment can easily damage the casing. Therefore, the gate in this location is usually removed manually, which results in very low production efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a gate milling device for injection molded parts, which effectively protects the yield of injection molded parts and improves the efficiency of gate milling.

[0004] The technical solution adopted by this utility model is as follows: This utility model includes a machine base, a feeding module, and a milling cutter module. At least one set of fixture modules is driven and connected to the feeding module. The fixture module includes a carrier plate, a spinning positioning component, and a protective component. The rotating pressing component is disposed on any side of the carrier plate and is used to fix the product on the carrier plate from a vertical direction. The protective component includes a horizontal cylinder and a protective push rod driven and connected to the horizontal cylinder. A milling abutment is also provided on the carrier plate at the position corresponding to the product sprue. The protective push rod corresponds to the position of the milling abutment. A milling cut is also provided on the milling abutment.

[0005] Furthermore, the spinning positioning assembly includes a rotary cylinder fixedly mounted on the carrier plate and a lifting cylinder driven and connected to the rotary cylinder, and a positioning rod is also connected to the output end of the lifting cylinder.

[0006] Furthermore, the carrier plate is also provided with a contour placement groove, and the milling abutment can be detachably installed on the contour edge of the directional placement groove at a position corresponding to the product sprue.

[0007] Furthermore, elastic pads are provided on the end faces of the positioning rod, the protective top rod, and the milling abutment plate facing the contour placement groove.

[0008] Furthermore, the feeding module includes a horizontal cylinder, a slide rail, and a sliding block. The horizontal cylinder is disposed inside the machine base, the slide rail is disposed on the upper surface of the machine base, the sliding block is slidably connected to the slide rail under the drive of the horizontal cylinder, and the carrier plate is fixedly disposed on the sliding block.

[0009] Finally, the milling cutter module includes a frame mounted on the machine base, a movable cylinder mounted on top of the frame, a vertical cylinder driven by the movable cylinder via a movable block, and a pneumatic milling cutter driven by the vertical cylinder via a vertical slider. The projection line of the movable cylinder on the machine base is perpendicular to the horizontal cylinder.

[0010] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention uses a horizontal cylinder to drive the protective push rod to move into the contour placement groove until it, together with the milling abutment, clamps the wall surface where the product's sprue is located. It provides support from both the inside and outside of the product, reinforcing the wall surface of the sprue and preventing damage to the product due to the milling cutter's movement during the sprue milling process. This effectively improves the effect and efficiency of sprue milling. Therefore, this invention is specifically designed for sprue milling at thin-walled locations on injection molded parts, effectively protecting the yield of the injection molded parts and improving sprue milling efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the fixture mold;

[0013] Figure 3 This is a schematic diagram of the structure of the spinning positioning assembly;

[0014] Figure 4 This is a schematic diagram of the structure of the milling cutter module;

[0015] Figure 5 This is a schematic diagram of the feeding module. Detailed Implementation

[0016] like Figures 1 to 5As shown, this utility model includes a machine base 1, a feeding module 2, and a milling cutter module 3. The feeding module 2 is driven and connected to two sets of mirror-arranged fixture modules 4. The fixture module 4 includes a carrier plate 40, a spinning positioning component, and a protective component. The rotating pressing component is disposed on any side of the carrier plate 40 and is used to fix the product on the carrier plate 40 from the vertical direction. The protective component includes a horizontal cylinder 41 and a protective push rod 42 driven and connected to the horizontal cylinder 41. A milling abutment 43 is also disposed on the carrier plate 40 at the position corresponding to the product sprue. The protective push rod 42 is positioned corresponding to the milling abutment 43. A milling cut 44 is also disposed on the milling abutment 43. When milling the sprue on a product, the wall thickness of the injection-molded outer shell varies. If the sprue appears in a relatively thin position, the milling cutter may easily damage the wall when cutting the sprue with a hob. This invention uses the protective top rod 42 and the milling abutment 43 to clamp the sprue part of the product from both inside and outside the product, thereby improving the rigidity of this part and protecting the outer shell of the product during the milling process.

[0017] In this invention, the spinning positioning assembly includes a rotary cylinder 45 fixedly mounted on the carrier plate 40 and a lifting cylinder 46 drivenly connected to the rotary cylinder 45. A positioning rod 47 is also connected to the output end of the lifting cylinder 46. A contour placement groove 48 is also provided on the carrier plate 40, and a milling abutment 43 is detachably installed on the contour edge of the contour placement groove at a position corresponding to the product's sprue. Elastic gaskets are provided on the end faces of the positioning rod 47, the protective top rod 42, and the milling abutment 43 facing the contour placement groove 48, effectively preventing damage to the product.

[0018] In this invention, the feeding module 2 includes a feeding cylinder 20, a slide rail 21, and a sliding block 22. The feeding cylinder 20 is disposed inside the machine base 1, the slide rail 21 is disposed on the upper surface of the machine base 1, and the sliding block 22 is slidably connected to the slide rail 21 under the drive of the feeding cylinder 20. The carrier plate 40 is fixedly disposed on the sliding block 22. The milling cutter module 3 includes a frame 30 disposed on the machine base 1, a movable cylinder 31 disposed on the top of the frame 30, a vertical cylinder 33 driven and connected to the movable cylinder 31 via a movable block 32, and a pneumatic milling cutter 35 driven and connected to the vertical cylinder 33 via a vertical slider 34. The projection line of the movable cylinder 31 on the machine base 1 is perpendicular to the feeding cylinder 20.

[0019] This utility model uses the horizontal cylinder 41 to drive the protective top rod 42 to move into the contour placement groove 48 until it, together with the milling abutment plate 43, clamps the wall surface where the product sprue is located, providing support from both the inside and outside of the product, reinforcing the wall surface of the milled sprue, and avoiding damage to the product due to the movement of the milling cutter during the milling process, thus effectively improving the effect and efficiency of milling the product sprue.

[0020] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A milling device for injection molded parts, comprising a machine base (1), a feeding module (2), and a milling cutter module (3), characterized in that: At least one set of fixture modules (4) are driven and connected to the feeding module (2). The fixture module (4) includes a carrier plate (40), a spinning positioning component and a protective component. The spinning positioning component is disposed on any side of the carrier plate (40) and is used to fix the product on the carrier plate (40) from the vertical direction. The protective component includes a horizontal cylinder (41) and a protective top rod (42) driven and connected to the horizontal cylinder (41). A milling abutment plate (43) is also provided on the carrier plate (40) at the position corresponding to the product sprue. The protective top rod (42) is positioned corresponding to the position of the milling abutment plate (43). A milling cut (44) is also provided on the milling abutment plate (43).

2. The injection molding part milling device according to claim 1, characterized in that: The spinning positioning assembly includes a rotary cylinder (45) fixedly mounted on the carrier plate (40) and a lifting cylinder (46) driven and connected to the rotary cylinder (45). The output end of the lifting cylinder (46) is also connected to a positioning rod (47).

3. The injection molding part milling device according to claim 2, characterized in that: The carrier plate (40) is also provided with a contour placement groove (48), and the milling abutment plate (43) can be detachably installed on the contour edge of the directional placement groove at a position corresponding to the product sprue.

4. The injection molding part milling gate device according to claim 3, characterized in that: Elastic pads are provided on the end faces of the positioning rod (47), the protective top rod (42), and the milling abutment plate (43) facing the contour placement groove (48).

5. The injection molding part milling device according to claim 1, characterized in that: The feeding module (2) includes a feeding cylinder (20), a slide rail (21) and a sliding block (22). The feeding cylinder (20) is located inside the machine base (1). The slide rail (21) is located on the upper surface of the machine base (1). The sliding block (22) is slidably connected to the slide rail (21) under the drive of the feeding cylinder (20). The carrier plate (40) is fixedly located on the sliding block (22).

6. The injection molding part milling device according to claim 5, characterized in that: The milling cutter module (3) includes a frame (30) mounted on the machine base (1), a movable cylinder (31) mounted on the top of the frame (30), a vertical cylinder (33) driven and connected to the movable cylinder (31) via a movable block (32), and a pneumatic milling cutter (35) driven and connected to the vertical cylinder (33) via a vertical slider (34). The projection line of the movable cylinder (31) on the machine base (1) is perpendicular to the feeding cylinder (20).

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