Intelligent injection gear mold

By designing an intelligent injection gear mold, and utilizing structures such as drive gears and limit blocks, the problems of air bubbles and voids in gear injection molding are solved, achieving uniform cooling of the injection material and high-quality molding.

CN116852648BActive Publication Date: 2025-11-07ZHEJIANG JIEZHONG SCI & TECH CO LTD
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Patent Information

Application Number
CN202310860600.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-13
Publication Date
2025-11-07
Estimated Expiration
2043-07-13

AI Technical Summary

Technical Problem

Existing injection molding equipment has difficulty effectively removing air bubbles and voids from gears during production, resulting in lower product quality.

Method used

The intelligent injection gear mold is adopted. The injection mold is rotated by the active gear. Combined with the design of limit blocks, support rods and rollers, centrifugal force is used to ensure the uniformity of the injection material during cooling and to remove air bubbles.

Benefits of technology

The quality of gear products has been improved by uniform cooling and air bubble removal, which enhances the molding effect of the products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a kind of intelligent injection gear mold, including base, workbench, support frame and injection mold, the base is internally provided with limiting cavity, the chuck assembly is arranged in the limiting cavity, a plurality of first slots are formed in the workbench, the second connecting rod is arranged on the workbench, one end of the second connecting rod is connected with driving gear, the other end of the second connecting rod is connected with driving power supply, the driving power supply is built in the workbench, the opening is formed in the support frame, and the motor is arranged on the opening of the support frame.The scheme drives the injection mold to rotate by driving gear and fixes the injection mold by limiting block, support rod and roller connected with sliding block, so that the injection mold can rotate around the first connecting rod as the core during the injection cooling process, centrifugal force is generated, the uniformity of the injection material during cooling is ensured, the bubbles in the gear mold are discharged, and the product quality is improved.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of injection mold equipment, and particularly relates to an intelligent injection gear mold. BACKGROUND

[0002] Injection molding is an important production method at present and is gradually applied to the injection of gear molds, however, due to the special structure of gears, corresponding supporting equipment is needed in injection.

[0003] For example, Chinese Patent No. CN113414954B discloses an injection mold and an injection molding process. The injection mold comprises a base, a driving mechanism, an ejection mechanism and a cooling mechanism. The top of the base is fixedly connected with a baffle and a fixed frame respectively. The driving mechanism is located on one side of the fixed frame. The piston rod of the air cylinder is fixedly connected with one side of the moving plate. The inside of the movable frame is rotatably connected with a first screw rod. The outside of the first screw rod is meshingly connected with a first gear. The first gear is meshingly connected with a second gear. One side of the second gear is fixedly connected with one end of the fixed column. The above-mentioned patent has the advantages that the injection mold is convenient for demolding and rapid molding.

[0004] However, in the above-mentioned injection process, voids and bubbles are prone to occur at the gear of the gear-shaped mold, so it is difficult to remove the bubbles and voids of the gear when the above-mentioned injection equipment uses the gear-shaped mold for production, thereby causing the problem of low product quality. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present application provides an intelligent injection gear mold, which solves the problems raised in the above background.

[0007] (II) Technical solutions

[0008] To achieve the above-mentioned purposes, the present application is implemented by the following technical solutions: an intelligent injection gear mold, characterized by comprising a base, a workbench, a support frame and an injection mold. A first limiting cavity is formed in the base. A chuck assembly is arranged in the first limiting cavity. A plurality of first grooves are formed in the workbench. A second connecting rod is arranged on the workbench. One end of the second connecting rod is key-connected with a driving gear. The other end of the second connecting rod is connected with a driving power supply. The driving power supply is built-in in the workbench. An opening is formed in the support frame. An electric motor is arranged on the opening of the support frame. The output shaft of the electric motor is fixedly connected with a positioning assembly. The injection mold is sleeved on the positioning assembly.

[0009] Preferably, the chuck assembly comprises a chuck, a plurality of sliding blocks and a plurality of supporting rods, a plurality of second slots are formed in the chuck, the sliding blocks are fixedly arranged in the second slots, the supporting rods are arranged in the first slots respectively, one end of the supporting rod is fixedly connected with the sliding block, and the other end of the supporting rod is rotatably connected with a roller.

[0010] Preferably, one side of the chuck, where the sliding block is arranged, is fixedly connected with a fourth connecting rod, and the fourth connecting rod is fixedly connected to one side of the workbench close to the chuck.

[0011] Preferably, the plurality of second slots are arranged at equal arcs with the center of the chuck as the center.

[0012] Preferably, the positioning assembly comprises an electric push rod, a first connecting rod, a screw rod and a limiting block, the electric push rod is fixedly connected to the output shaft of the motor, the electric push rod is rotatably connected with the first connecting rod, the first connecting rod is provided with a hole, the screw rod is slidably connected to the hole of the first connecting rod, one end of the screw rod is rotatably connected with the limiting block, and the other end of the screw rod is fixedly connected with a knob.

[0013] Preferably, one end of the limiting block close to the first connecting rod is fixedly connected with a plurality of fixing rods, the first connecting rod is provided with a plurality of sliding grooves, and the fixing rods are slidably connected to the sliding grooves of the first connecting rod.

[0014] Preferably, the outer circular surface of the screw rod is provided with threads, the outer circular surface of the hole of the first connecting rod is provided with threads, and the threads on the outer circular surface of the screw rod are matched with the threads on the outer circular surface of the hole of the first connecting rod.

[0015] Preferably, the second connecting rod is provided with a second limiting cavity, the second limiting cavity is provided with a key groove, one side of the driving gear close to the second connecting rod is fixedly connected with a third connecting rod, the third connecting rod is provided with a key, and the key groove is matched with the key.

[0016] (Three) beneficial effects

[0017] The application provides an intelligent injection gear mold.

[0018] 1. The application drives the injection mold to rotate through the driving gear, and fixes the injection mold through the limiting block, the roller connected with the supporting rod and the sliding block, so that the injection mold can rotate around the first connecting rod during the injection cooling process, centrifugal force is generated, the uniformity of the injection material during cooling is ensured, air bubbles in the gear mold are discharged, and the product quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1This is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the assembly structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the present invention;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure of A in the middle;

[0023] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0024] In the diagram: 11. Base; 12. Worktable; 13. Support frame; 14. Motor; 15. Electric push rod; 16. First connecting rod; 17. Second connecting rod; 18. First limiting cavity; 19. Keyway; 20. Drive gear; 21. Third connecting rod; 22. Key; 25. Screw; 26. Limiting block; 27. Fixing rod; 28. Knob; 30. First slot; 31. Chuck; 32. Fourth connecting rod; 33. Second slot; 34. Slider; 35. Support rod; 36. Roller; 37. Second limiting cavity; 40. Injection mold. Detailed Implementation

[0025] This invention provides an intelligent injection gear mold, such as... Figures 1-5 As shown, it includes a base 11, a worktable 12, a support frame 13, a motor 14, an electric push rod 15, a first connecting rod 16, a second connecting rod 17, a first limiting cavity 18, a flat keyway 19, a drive gear 20, a third connecting rod 21, a flat key 22, a screw 25, a limiting block 26, a fixing rod 27, a knob 28, a first slot 30, a chuck 31, a fourth connecting rod 32, a second slot 33, a slider 34, a support rod 35, a roller 36, a second limiting cavity 37, and an injection mold 40.

[0026] like Figures 1-2 As shown, the base 11 is a cuboid base. A first limiting cavity 18 is provided on the side of the base 11 near the worktable 12. A chuck assembly is provided in the first limiting cavity 18. Four first slots 30 are provided on the worktable 12. The first slots 30 are long strip slots. A second connecting rod 17 is provided on the worktable 12. One end of the second connecting rod 17 is keyed to a drive gear 20. The other end of the second connecting rod 17 is connected to a drive power supply. The drive power supply is built into the worktable 12. The support frame 13 includes a vertical part and a horizontal part. The lower end of the vertical part of the support frame 13 is fixedly connected to the upper plane of the worktable 12. An opening is provided on the horizontal part of the support frame 13. A motor 14 is provided on the opening of the support frame 13. The output shaft of the motor 14 is fixedly connected to a positioning assembly. The injection mold 40 is sleeved on the positioning assembly. The drive gear 20 meshes with the injection mold 40.

[0027] The second connecting rod 17 is driven to rotate by the driving power source, thereby driving the driving gear 20 to rotate around the second connecting rod 17 as the axis. Since the driving gear 20 is engaged with the injection mold 40, the driving gear 20 drives the injection mold 40 to rotate around the first connecting rod 16 as the axis.

[0028] As shown in Figure 3 , the chuck assembly comprises a chuck 31, four sliding blocks 34 and four supporting rods 35. The chuck 31 is provided with a plurality of second grooves 33, and the sliding blocks 34 are slidably connected in the second grooves 33. The sliding blocks 34 are connected with elastic members on the inner wall of the second grooves 33 close to the center of the chuck 31. The four supporting rods 35 are arranged in the four first grooves 30 respectively. One end of the supporting rod 35 is fixedly connected with the sliding block 34, and the other end of the supporting rod 35 is rotatably connected with the roller 36. The chuck 31 is fixedly connected with the fourth connecting rod 32 on the side where the sliding block 34 is arranged. The fourth connecting rod 32 is fixedly connected with the workbench 12 close to the chuck 31. The plurality of second grooves 33 are arranged at equal angles with the center of the chuck 31 as the center.

[0029] The relative positions of the inner ring are fixedly limited by the four rollers 36, thereby ensuring that the driving gear 20 is engaged with the injection mold 40 and will not deviate when driving the injection mold 40 to rotate due to vibration. The spacing between the rollers 36 can be adjusted by sliding the sliding blocks 34 in the second grooves 33, thereby adapting to injection molds 40 with different inner diameters. Since the sliding blocks 34 and the second grooves 33 are provided with springs, the function of shock absorption is also achieved.

[0030] As shown in Figure 4 , the positioning assembly comprises an electric push rod 15, a first connecting rod 16, a screw rod 25 and a limiting block 26. The electric push rod 15 is fixedly connected with the output shaft of the motor 14. The electric push rod 15 is rotatably connected with the first connecting rod 16. The first connecting rod 16 is provided with a hole. The screw rod 25 is slidably connected with the hole of the first connecting rod 16. One end of the screw rod 25 is rotatably connected with the limiting block 26. The other end of the screw rod 25 is fixedly connected with the knob 28.

[0031] The limiting block 26 is fixedly connected with a plurality of fixed rods 27 close to one end of the first connecting rod 16. The first connecting rod 16 is provided with a plurality of sliding grooves. The fixed rods 27 are slidably connected with the sliding grooves of the first connecting rod 16. The outer circular surface of the screw rod 25 is provided with threads. The outer circular surface of the hole of the first connecting rod 16 is provided with threads. The threads on the outer circular surface of the screw rod 25 are matched with the threads on the outer circular surface of the hole of the first connecting rod 16.

[0032] The motor 14 provides driving force to the electric push rod 15 to control the first connecting rod 16 to rise and fall, and the distance between the limiting block 26 and the first connecting rod 16 is adjusted by rotating the knob 28, so that the limiting block 26 is tightly attached to the inner wall of the injection mold 40, so that the limiting block 26 achieves the purpose of limiting the position of the injection mold 40 in the vertical direction, thereby ensuring the engagement of the driving gear 20 with the injection mold 40.

[0033] As shown in Figure 5 The second connecting rod 17 is provided with a second limiting cavity 37, and the second limiting cavity 37 is provided with a key groove 19. The driving gear 20 is fixedly connected to the side close to the second connecting rod 17, and the third connecting rod 21 is provided with a key 22. The key groove 19 and the key 22 are matched, so that the driving gear 20 can be replaced.

[0034] When the gear injection is performed, first, the driving gear 20 is arranged on the second connecting rod 17, the injection mold 40 is placed on the workbench 12 and the driving gear 20 is engaged with the injection mold 40, the sliding block 34 is slid in the second slot 33 to the appropriate position so that the plurality of rollers 36 are located on the inner circular surface of the injection mold 40, then the motor 14 is started, the motor 14 drives the electric push rod 15 to extend and retract, the electric push rod 15 drives the first connecting rod 16 to move to the height corresponding to the injection mold 40, and the knob 28 is rotated to adjust the distance between the limiting block 26 and the first connecting rod 16, so that the limiting block 26 fixes the height of the injection mold 40, finally, the molten injection material is injected into the injection mold 40, and the driving power supply is started to drive the second connecting rod 17 to rotate, thereby driving the driving gear 20 to rotate around the second connecting rod 17 as the axis. Since the driving gear 20 is engaged with the injection mold 40, the driving gear 20 drives the injection mold 40 to rotate to provide centrifugal force to the injection mold 40, thereby ensuring the uniformity of the injection material when cooled.

[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An intelligent injection molded gear mold, characterized by: Including base (11), workbench (12), support frame (13) and injection mold (40), the first limiting cavity (18) is set in the base (11), the chuck assembly is provided in the first limiting cavity (18), the workbench (12) is provided with a plurality of first slot (30), the second connecting rod (17) is provided on the workbench (12), one end of the second connecting rod (17) is keyed with driving gear (20), the other end of the second connecting rod (17) is connected with driving power supply, the driving power supply is built in the workbench (12), the support frame (13) is provided with a hole, the motor (14) is provided on the hole of the support frame (13), the output shaft of the motor (14) is fixedly connected with the positioning assembly, the injection mold (40) is sleeved on the positioning assembly, the driving gear (20) is engaged with the injection mold (40); The chuck assembly includes chuck (31), a plurality of sliding blocks (34) and a plurality of supporting rods (35), a plurality of second slots (33) are formed in the chuck (31), the sliding block (34) is connected in the second slot (33), the sliding block (34) is connected with the inner wall of the second slot (33) on the side close to the center of the chuck (31), a plurality of supporting rods (35) are respectively arranged in a plurality of first slots (30), one end of the supporting rod (35) is fixedly connected with the sliding block (34), the other end of the supporting rod (35) is rotatably connected with the roller (36); The chuck (31) is fixedly connected with the fourth connecting rod (32) on the side where the sliding block (34) is arranged, and the fourth connecting rod (32) is fixedly connected to the side of the workbench (12) close to the chuck (31); The plurality of second slots (33) are arranged at equal arcs with the center of the chuck (31) as the center; The positioning assembly includes electric push rod (15), first connecting rod (16), screw rod (25) and limiting block (26), the electric push rod (15) is fixedly connected to the output shaft of the motor (14), the electric push rod (15) is rotatably connected with the first connecting rod (16), the first connecting rod (16) is provided with a hole, the screw rod (25) is slidably connected to the hole of the first connecting rod (16), one end of the screw rod (25) is rotatably connected to the limiting block (26), the other end of the screw rod (25) is fixedly connected with the knob (28); The limiting block (26) is fixedly connected with a plurality of fixed rods (27) on the end close to the first connecting rod (16), the first connecting rod (16) is provided with a plurality of sliding grooves, and the fixed rod (27) is slidably connected to the sliding groove of the first connecting rod (16); The outer circular surface of the screw rod (25) is provided with a thread, the outer circular surface of the first connecting rod (16) is provided with a thread, and the thread on the outer circular surface of the screw rod (25) is matched with the thread on the outer circular surface of the first connecting rod (16) hole. The second connecting rod (17) is provided with a second limiting cavity (37), the second limiting cavity (37) is provided with a flat key groove (19), the driving gear (20) is fixedly connected with a third connecting rod (21) on the side close to the second connecting rod (17), the third connecting rod (21) is provided with a flat key (22), and the flat key groove (19) is matched with the flat key (22).

Citation Information

Patent Citations

  • Injection molds and injection molding process

    CN113414954B

  • Synchronous belt pulley multi-groove parallel machining tool

    CN110883571A

  • Synchronous belt bubble removing equipment and using method thereof

    CN112026118A