Injection molding apparatus for adjustable wall thickness of plastic gears

Abstract

The utility model relates to gear processing technical field discloses a kind of injection molding device of adjustable plastic gear wall thickness, including base.The utility model is supported by support block to hydraulic cylinder one, at this time, hydraulic cylinder one is driven fixed plate to move by connecting rod, and fixed rod and hydraulic cylinder are fixed in the bottom of fixed plate, and fixed rod is fixed with movable mould, so that movable mould movement is adhered with fixed mould assembly, the output end of hydraulic cylinder is fixed sliding rod, and sliding rod is fixed with adjusting gear block simultaneously, so that adjusting gear block slides in the outer wall of shaping gear groove, feed pipe is communicated in adjusting gear block interior, raw material is entered into shaping gear groove by feed pipe, to complete shaping, by adjusting the sliding distance of adjusting gear block in shaping gear groove interior, gear of different thickness can be produced, to produce under the condition of not disassembling mould, reduce the frequency of replacing mould, improve overall production efficiency, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, and in particular to an injection molding device for adjusting the wall thickness of plastic gears. Background Technology

[0002] Injection molding equipment is a core tool in the field of plastic molding and processing. Its essence is to transform liquid or semi-liquid plastic raw materials into products with specific shapes and properties through precise design of the mold cavity and material filling. Relying on the closed mold space, the plastic raw materials complete the transformation from fluid to solid under high temperature and pressure, and finally obtain parts that meet the design requirements.

[0003] In existing technologies, when producing gears of different thicknesses, it is often necessary to change the mold. Each mold change requires machine downtime, which leads to production line stagnation, reduces overall production efficiency, and the mold change and debugging process is complex and cumbersome, wasting a lot of time and increasing production and time costs. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an injection molding device with adjustable plastic gear wall thickness.

[0005] This utility model is achieved by the following technical solution: an injection molding device with adjustable plastic gear wall thickness, including a base, a support rod fixedly connected to the top of the base, a top plate fixedly connected to the top of the support rod, a moving mold assembly provided on the top of the base, a fixed mold assembly provided on the top of the base, and a pusher assembly provided on the outer wall of the base;

[0006] The moving mold assembly includes a moving mold, which is slidably connected to the outer wall of a support rod. A shaping gear groove is provided inside the moving mold, and an adjusting gear block is slidably connected to the outer wall of the shaping gear groove. A feed pipe is connected inside the adjusting gear block. A sliding rod is fixedly connected to the top of the adjusting gear block, and a hydraulic cylinder is fixedly connected to the top of the sliding rod. A fixing plate is fixedly connected to the top of the hydraulic cylinder, and a fixing rod is fixedly connected to the bottom of the fixing plate. A connecting rod is fixedly connected to the end of the fixing plate away from the fixing rod, and a hydraulic cylinder is fixedly connected to the top of the connecting rod. A support block is fixedly connected to the outer wall of the hydraulic cylinder.

[0007] As a further improvement to the above solution, the feed pipe is slidably connected inside the moving mold, the sliding rod is slidably connected inside the moving mold, the fixed rod is fixedly connected to the top of the moving mold, the connecting rod is slidably connected inside the top plate, and the support block is fixedly connected to the top of the top plate.

[0008] Through the above technical solution, the support block supports the hydraulic cylinder one. At this time, the hydraulic cylinder one drives the fixed plate to move through the connecting rod. The fixed rod and the hydraulic cylinder are fixed at the bottom of the fixed plate. The fixed rod is fixed to the moving mold, so that the moving mold moves in contact with the fixed mold assembly. The output end of the hydraulic cylinder is fixed to the sliding rod, and the sliding rod is fixed to the adjusting gear block, so that the adjusting gear block slides on the outer wall of the shaping gear groove. The feed pipe is connected inside the adjusting gear block. The raw material enters the shaping gear groove through the feed pipe, thereby completing the shaping. By adjusting the sliding distance of the adjusting gear block inside the shaping gear groove, gears of different thicknesses can be produced. Thus, production can be carried out without disassembling the mold, reducing the frequency of mold replacement, improving the overall production efficiency, and reducing the production cost.

[0009] As a further improvement to the above solution, the fixed mold assembly includes a second hydraulic cylinder, which is fixedly connected to the top of the base. A telescopic rod is fixedly connected to the output end of the second hydraulic cylinder, and a fixed mold is slidably connected to the outer wall of the telescopic rod. The fixed mold is fixedly connected to the outer wall of the support rod.

[0010] As a further improvement to the above solution, the pusher assembly includes a fixed plate, which is fixedly connected to the outer wall of the fixed mold. A sliding groove is provided inside the fixed plate, and a slider is slidably connected to the outer wall of the sliding groove. A threaded rod is threadedly connected inside the slider.

[0011] As a further improvement to the above solution, the threaded rod is rotatably connected inside the fixed plate, and a motor is fixedly connected to the end of the threaded rod away from the slider. A support plate is fixedly connected to the outer wall of the motor, and the support plate is fixedly connected to the bottom of the fixed plate. A connecting plate is fixedly connected to the top of the slider.

[0012] As a further improvement to the above solution, a guide rod is fixedly connected to the outer wall of the connecting plate, a fixing block is slidably connected to the outer wall of the guide rod, the fixing block is fixedly connected to the top of the fixing plate, a push plate is fixedly connected to the end of the guide rod near the fixing block, a connecting plate is fixedly connected to the top of the push plate, a hollow plate is fixedly connected to the outer wall of the connecting plate, an air nozzle is connected inside the hollow plate, and an air pipe is connected inside the end of the hollow plate away from the connecting plate.

[0013] Through the above technical solution, the motor drives the threaded rod to rotate, and the threaded rod is threadedly connected to the slider, causing the slider to slide along the outer wall of the groove. A connecting plate is fixed at the top of the slider, and the connecting plate drives the guide rod to slide inside the fixed block. At the same time, the guide rod is fixed by a push plate, which moves along the surface of the fixed mold, thereby pushing the product to the discharge plate. This reduces the time for manual material handling, thereby reducing the risk of injury to personnel and ensuring their safety. Simultaneously, air pressure is blown through the hollow plate to the surface of the air nozzle. When the product is pushed away, the air nozzle simultaneously sprays high-pressure air onto the surfaces of the moving mold and the fixed mold, causing impurities to fall off and ensuring that no impurities remain in the next operation, thus ensuring the processing quality of the product.

[0014] As a further improvement to the above solution, a control panel is fixedly connected to the outer wall of the fixed mold, and a discharge plate is fixedly connected to the outer wall of the fixed mold.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention supports a hydraulic cylinder by a support block. The hydraulic cylinder drives a fixed plate to move via a connecting rod. A fixed rod and a hydraulic cylinder are fixed at the bottom of the fixed plate. The fixed rod is fixed to the moving mold, allowing the moving mold to move in contact with the fixed mold assembly. A sliding rod is fixed to the output end of the hydraulic cylinder, and the sliding rod is also fixed to an adjusting gear block. The adjusting gear block slides on the outer wall of the shaping gear groove. A feed pipe is connected inside the adjusting gear block, and the raw material enters the shaping gear groove through the feed pipe, thus completing the shaping. By adjusting the sliding distance of the adjusting gear block inside the shaping gear groove, gears of different thicknesses can be produced. This allows production without disassembling the mold, reducing the frequency of mold changes, improving overall production efficiency, and reducing production costs.

[0017] This invention uses a motor to drive a threaded rod to rotate. The threaded rod is threadedly connected to a slider, allowing the slider to slide along the outer wall of the groove. A connecting plate is fixed at the top of the slider, and the connecting plate drives a guide rod to slide inside the fixed block. Simultaneously, the guide rod is fixed by a push plate, causing the push plate to move along the surface of the fixed mold, thereby pushing the product to the discharge plate. This reduces the time spent on manual material handling, thereby reducing the risk of injury to personnel and ensuring their safety. At the same time, air pressure is blown through the hollow plate to the surface of the air nozzle. When the product is pushed away, the air nozzle simultaneously sprays high-pressure air onto the surfaces of the moving and fixed molds, removing impurities and ensuring that no impurities remain in the next operation, thus guaranteeing the processing quality of the product. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the moving mold assembly structure of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0021] Figure 4 This is a schematic diagram of the fixed mold assembly structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the pusher assembly structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the hollow plate structure of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Base; 2. Support rod; 3. Top plate; 4. Moving mold assembly; 401. Moving mold; 402. Fixed gear groove; 403. Adjusting gear block; 404. Feed pipe; 405. Sliding rod; 406. Hydraulic cylinder; 407. Fixing plate; 408. Fixing rod; 409. Connecting rod; 410. Hydraulic cylinder one; 411. Support block; 5. Fixed mold assembly; 501. Hydraulic cylinder two; 502. Telescopic rod; 503. Fixed mold; 6. Pushing assembly; 601. Fixing plate one; 602. Slide groove; 603. Slider; 604. Threaded rod; 605. Motor; 606. Support plate; 607. Connecting plate; 608. Guide rod; 609. Fixing block; 610. Push plate; 611. Connecting plate one; 612. Hollow plate; 613. Air nozzle; 614. Air pipe; 7. Control panel; 8. Discharge plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example:

[0028] Please combine Figure 1-6 This embodiment provides an injection molding device for adjusting the wall thickness of a plastic gear, including a base 1, a support rod 2 fixedly connected to the top of the base 1, a top plate 3 fixedly connected to the top of the support rod 2, a moving mold assembly 4 provided on the top of the base 1, a fixed mold assembly 5 provided on the top of the base 1, and a pusher assembly 6 provided on the outer wall of the base 1.

[0029] The moving mold assembly 4 includes a moving mold 401, which is slidably connected to the outer wall of the support rod 2. A shaping gear groove 402 is provided inside the moving mold 401. An adjusting gear block 403 is slidably connected to the outer wall of the shaping gear groove 402. A feed pipe 404 is connected inside the adjusting gear block 403. A sliding rod 405 is fixedly connected to the top of the adjusting gear block 403. A hydraulic cylinder 406 is fixedly connected to the top of the sliding rod 405. A fixing plate 407 is fixedly connected to the top of the hydraulic cylinder 406. A fixing rod 408 is fixedly connected to the bottom of the fixing plate 407. A connecting rod 409 is fixedly connected to the end of the fixing plate 407 away from the fixing rod 408. A hydraulic cylinder 410 is fixedly connected to the top of the connecting rod 409. A support block 411 is fixedly connected to the outer wall of the hydraulic cylinder 410.

[0030] The feed pipe 404 is slidably connected inside the moving mold 401, the sliding rod 405 is slidably connected inside the moving mold 401, the fixed rod 408 is fixedly connected to the top of the moving mold 401, the connecting rod 409 is slidably connected inside the top plate 3, and the support block 411 is fixedly connected to the top of the top plate 3.

[0031] The fixed mold assembly 5 includes a second hydraulic cylinder 501, which is fixedly connected to the top of the base 1. A telescopic rod 502 is fixedly connected to the output end of the second hydraulic cylinder 501. A fixed mold 503 is slidably connected to the outer wall of the telescopic rod 502. The fixed mold 503 is fixedly connected to the outer wall of the support rod 2.

[0032] The pusher assembly 6 includes a fixed plate 601, which is fixedly connected to the outer wall of the fixed mold 503. A groove 602 is provided inside the fixed plate 601, and a slider 603 is slidably connected to the outer wall of the groove 602. A threaded rod 604 is threadedly connected inside the slider 603.

[0033] The threaded rod 604 is rotatably connected inside the fixed plate 601. The end of the threaded rod 604 away from the slider 603 is fixedly connected to the motor 605. The outer wall of the motor 605 is fixedly connected to the support plate 606. The support plate 606 is fixedly connected to the bottom of the fixed plate 601. The top of the slider 603 is fixedly connected to the connecting plate 607.

[0034] A guide rod 608 is fixedly connected to the outer wall of the connecting plate 607. A fixing block 609 is slidably connected to the outer wall of the guide rod 608. The fixing block 609 is fixedly connected to the top of the fixing plate 601. A push plate 610 is fixedly connected to the end of the guide rod 608 near the fixing block 609. A connecting plate 611 is fixedly connected to the top of the push plate 610. A hollow plate 612 is fixedly connected to the outer wall of the connecting plate 611. An air nozzle 613 is connected inside the hollow plate 612. An air pipe 614 is connected inside the hollow plate 612 away from the connecting plate 611.

[0035] The outer wall of the fixed mold 503 is fixedly connected to a control panel 7, and the outer wall of the fixed mold 503 is fixedly connected to a discharge plate 8.

[0036] The implementation principle of the injection molding device with adjustable plastic gear wall thickness in this embodiment is as follows: the support block 411 supports the hydraulic cylinder 410. At this time, the hydraulic cylinder 410 drives the fixed plate 407 to move through the connecting rod 409. The fixed rod 408 and the hydraulic cylinder 406 are fixed at the bottom of the fixed plate 407. The fixed rod 408 is fixed to the moving mold 401, so that the moving mold 401 moves and fits with the fixed mold assembly 5. The output end of the hydraulic cylinder 406 is fixed to the sliding rod 405. At the same time, the sliding rod 405 is fixed to the adjusting gear block 403, so that the adjusting gear block 403 slides on the outer wall of the fixed gear groove 402. The feed pipe 404 is connected inside the adjusting gear block 403. The raw material enters the fixed gear groove 402 through the feed pipe 404. The gear is shaped within the gear groove 402. By adjusting the sliding distance of the adjusting gear block 403 within the shaped gear groove 402, gears of different thicknesses can be produced. This allows production without disassembling the mold, reducing the frequency of mold changes, improving overall production efficiency, and lowering production costs. Simultaneously, hydraulic cylinder 501 drives the telescopic rod 502 to slide inside the fixed mold 503. The telescopic rod 502 is always in contact with the bottom of the adjusting gear block 403 through a program, thus ensuring the hollow position in the middle of the gear during production. After the gear is formed, the moving mold 401 separates from the fixed mold 503. While the moving mold 401 is running, hydraulic cylinder 406 operates, pushing the product and causing it to detach. After the gear groove 402 is formed, the hydraulic cylinder 501 drives the telescopic rod 502 to retract, leaving the product on the surface of the fixed mold 503. Simultaneously, the telescopic rod 502 retracts below the surface of the fixed mold 503. At this time, the motor 605 drives the threaded rod 604 to rotate. The threaded rod 604 is threadedly connected to the slider 603, causing the slider 603 to slide along the outer wall of the groove 602. A connecting plate 607 is fixed at the top of the slider 603. The connecting plate 607 drives the guide rod 608 to slide inside the fixed block 609. The guide rod 608 is fixed by a push plate 610, causing the push plate 610 to move along the surface of the fixed mold 503, thereby pushing the product to the ejector plate 8, reducing the time spent manually handling the material and thus reducing personnel injury. To mitigate the risk of injury and ensure personnel safety, a connecting plate 611 is fixed to the top of the push plate 610. The connecting plate 611 is fixed to the hollow plate 612, which is connected to both the air nozzle 613 and the air pipe 614. Several air nozzles 613 are distributed on the upper and lower surfaces of the hollow plate 612. The air pipe 614 is connected to the equipment's air source. At this time, air pressure is blown through the hollow plate 612 to the surface of the air nozzle 613. When the product is pushed away, the air nozzle 613 simultaneously sprays high-pressure air onto the surfaces of the moving mold 401 and the fixed mold 503 to remove impurities, ensuring that no impurities remain during the next run and guaranteeing the processing quality of the product. The control panel 7 programs and controls the entire equipment to ensure continuous production.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An injection molding device for adjusting the wall thickness of a plastic gear, characterized in that, Includes a base (1), a support rod (2) fixedly connected to the top of the base (1), a top plate (3) fixedly connected to the top of the support rod (2), a moving mold assembly (4) provided on the top of the base (1), a fixed mold assembly (5) provided on the top of the base (1), and a pusher assembly (6) provided on the outer wall of the base (1). The moving mold assembly (4) includes a moving mold (401), which is slidably connected to the outer wall of the support rod (2). A shaping gear groove (402) is provided inside the moving mold (401). An adjusting gear block (403) is slidably connected to the outer wall of the shaping gear groove (402). A feed pipe (404) is connected inside the adjusting gear block (403). A sliding rod (405) is fixedly connected to the top of the adjusting gear block (403). 5) A hydraulic cylinder (406) is fixedly connected to the top. A fixing plate (407) is fixedly connected to the top of the hydraulic cylinder (406). A fixing rod (408) is fixedly connected to the bottom of the fixing plate (407). A connecting rod (409) is fixedly connected to the end of the fixing plate (407) away from the fixing rod (408). A hydraulic cylinder (410) is fixedly connected to the top of the connecting rod (409). A support block (411) is fixedly connected to the outer wall of the hydraulic cylinder (410).

2. The injection molding device for adjusting the wall thickness of a plastic gear as described in claim 1, characterized in that: The feed pipe (404) is slidably connected inside the moving mold (401), the sliding rod (405) is slidably connected inside the moving mold (401), the fixing rod (408) is fixedly connected to the top of the moving mold (401), the connecting rod (409) is slidably connected inside the top plate (3), and the support block (411) is fixedly connected to the top of the top plate (3).

3. The injection molding device for adjusting the wall thickness of a plastic gear as described in claim 1, characterized in that: The fixed mold assembly (5) includes a second hydraulic cylinder (501), which is fixedly connected to the top of the base (1). A telescopic rod (502) is fixedly connected to the output end of the second hydraulic cylinder (501). A fixed mold (503) is slidably connected to the outer wall of the telescopic rod (502), and the fixed mold (503) is fixedly connected to the outer wall of the support rod (2).

4. The injection molding device for adjusting the wall thickness of a plastic gear as described in claim 1, characterized in that: The pusher assembly (6) includes a fixing plate (601), which is fixedly connected to the outer wall of the fixed mold (503). A groove (602) is provided inside the fixing plate (601), and a slider (603) is slidably connected to the outer wall of the groove (602). A threaded rod (604) is threadedly connected inside the slider (603).

5. The injection molding device for adjusting the wall thickness of a plastic gear as described in claim 4, characterized in that: The threaded rod (604) is rotatably connected inside the first fixed plate (601). A motor (605) is fixedly connected to the end of the threaded rod (604) away from the slider (603). A support plate (606) is fixedly connected to the outer wall of the motor (605). The support plate (606) is fixedly connected to the bottom of the first fixed plate (601). A connecting plate (607) is fixedly connected to the top of the slider (603).

6. The injection molding device for adjusting the wall thickness of a plastic gear as described in claim 5, characterized in that: A guide rod (608) is fixedly connected to the outer wall of the connecting plate (607). A fixing block (609) is slidably connected to the outer wall of the guide rod (608). The fixing block (609) is fixedly connected to the top of the first fixing plate (601). A push plate (610) is fixedly connected to one end of the guide rod (608) near the fixing block (609). A connecting plate (611) is fixedly connected to the top of the push plate (610). A hollow plate (612) is fixedly connected to the outer wall of the first connecting plate (611). An air nozzle (613) is connected inside the hollow plate (612). An air pipe (614) is connected inside the hollow plate (612) away from the first connecting plate (611).

7. The injection molding device for adjusting the wall thickness of a plastic gear as described in claim 1, characterized in that: A control panel (7) is fixedly connected to the outer wall of the fixed mold (503), and a discharge plate (8) is fixedly connected to the outer wall of the fixed mold (503).

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