Plastic mold capable of preventing feeding mechanism from being blocked

Abstract

The utility model discloses a plastic mold with an anti-blocking feeding mechanism, and relates to the technical field of injection molds. Comprising a lower mold, the outer wall of the lower mold is fixedly connected with a limiting rod, the outer wall of the limiting rod is slidably connected with an upper mold, the injection device comprises a guiding device, the guiding device comprises an injection hopper, the outer wall of the injection hopper is slidably connected with a movable device, and a servo motor of the movable device drives a driven gear to rotate through a driving gear; the outer wall of the bottom of the rotating ring is fixedly connected with a scraping piece, the end, away from the rotating ring, of the scraping piece is fixedly connected with a limiting ring, the bottom end of the limiting ring is fixedly connected with a pushing block, the servo motor drives a driving gear to enable a driven gear ring to rotate, and the connected scraping piece is tightly attached to the inner wall of the injection hopper along with rotation to clean plastic raw materials; and the limiting ring and the pushing block are used for assisting, so that stable cleaning is guaranteed, the raw materials are pushed to smoothly enter the cavity, and the plastic raw materials are continuously and stably injected into the mold.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a plastic mold with an anti-clogging feeding mechanism. Background Technology

[0002] In the plastics manufacturing industry, plastic molds are key equipment to ensure product molding quality and production efficiency. As the application range of plastic products continues to expand, from everyday plastic products to precision electronic component housings, the performance requirements for plastic molds are increasing. However, existing plastic molds suffer from clogging problems in the feeding stage. Traditional plastic mold feeding mechanisms are mostly simple funnel-type and pipe-type designs. During the feeding process, plastic raw materials are prone to adhering to and accumulating on the feed inlet and inner wall of the flow channel due to their own viscosity, poor flowability, and the complex flow channel structure inside the mold. When producing some plastic products containing fillers, these substances can easily cause the raw materials to stick together more easily during injection. Once a blockage occurs, it will not only interrupt the production process and require operators to spend time cleaning, which will increase labor costs and downtime, but may also affect the molding quality of the product due to unsmooth feeding, resulting in defects such as bubbles and missing material, leading to an increase in scrap rate. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a plastic mold with an anti-clogging feeding mechanism. Through the design of the injection device and related structures, it solves the problem of easy clogging in traditional molds, thereby improving the stability and efficiency of plastic raw material injection, ensuring the continuity of the production process, guaranteeing the stability of the production process and the stability of product quality, and facilitating the orderly progress of the production process.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic mold for preventing blockage in the feeding mechanism, comprising a lower mold, a limiting rod fixedly connected to the outer wall of the lower mold, an upper mold slidably connected to the outer wall of the limiting rod, and an injection device, comprising a guiding device, the guiding device comprising an injection hopper, a movable device slidably connected to the outer wall of the injection hopper; the movable device comprising a servo motor, a driving gear fixedly connected to the output end of the servo motor, a driven gear ring disposed outside the servo motor, anti-detachment rings symmetrically fixedly connected to the outer wall of the driven gear ring, a rotating ring fixedly connected to the inner side wall of the driven gear ring, a scraper fixedly connected to the outer wall of the bottom of the rotating ring, a limiting ring fixedly connected to the end of the scraper away from the rotating ring, and a pushing block fixedly connected to the bottom end of the limiting ring.

[0007] Preferably, the outer wall of the injection hopper is fixedly connected to the inner wall of the upper mold, the outer wall of the servo motor is fixedly connected to the inner wall of the upper mold, the driving gear meshes with the driven gear ring, and the outer walls of the scraper and the limiting ring are slidably connected to the inner side wall of the injection hopper. In the injection device, the servo motor drives the driving gear to rotate the driven gear ring, and the connected scraper rotates and closely adheres to the inner wall of the injection hopper to clean the plastic material, preventing accumulation and blockage. The limiting ring and the pushing block assist in ensuring stable cleaning and smoothly pushing the material into the cavity, ensuring continuous and stable injection of the plastic material into the mold.

[0008] Preferably, the guiding device further includes a connecting ring, the outer wall of which is fixedly connected to a protective shell, both the outer wall of the connecting ring and the outer wall of the protective shell are provided with anti-detachment grooves, the outer wall of the protective shell is fixedly connected to a fixing shell, and the wall of the fixing shell is provided with a rotation hole.

[0009] Preferably, the outer wall of the bottom of the connecting ring is fixedly connected to the outer wall of the top of the injection hopper. The outer walls of the protective shell and the fixed shell are both fixedly connected to the inner wall of the upper mold. The outer wall of the connecting ring is slidably connected to the outer wall of the anti-detachment ring through an anti-detachment groove. The outer wall of the protective shell is slidably connected to the outer wall of the anti-detachment ring through an anti-detachment groove. The inner wall of the fixed shell is rotatably connected to the output end of the servo motor through a rotating hole. The inner wall of the fixed shell is slidably connected to the outer wall of the drive gear. The connecting ring, in conjunction with the anti-detachment groove and the anti-detachment ring, ensures the stable operation of the moving device. The protective shell and the fixed shell together prevent impurities from entering the gear position. All components work together to create a stable operating environment for the moving device, thereby reducing malfunctions, minimizing downtime caused by device problems, and ensuring production continuity.

[0010] (III) Beneficial Effects

[0011] This utility model provides a plastic mold with an anti-clogging feeding mechanism. It has the following beneficial effects:

[0012] (i) In the injection device, the servo motor drives the drive gear to rotate the driven gear ring. The connected scraper rotates and closely adheres to the inner wall of the injection hopper to clean the plastic material, preventing accumulation and blockage. The limiting ring and the push block assist in ensuring stable cleaning and smoothly pushing the material into the cavity, ensuring that the plastic material is continuously and stably injected into the mold, thereby ensuring the efficiency of feeding.

[0013] (ii) The plastic mold, through the connection ring to prevent detachment and the anti-detachment ring, ensures the stable operation of the moving device. The protective shell and the fixed shell work together to prevent impurities from entering the gear position. All components work together to create a stable operating environment for the moving device, thereby reducing failures, reducing downtime caused by device problems, and ensuring production continuity. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the injection device of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the guiding device of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the movable device of this utility model.

[0019] In the diagram: 1. Lower mold; 2. Limiting rod; 3. Upper mold; 4. Injection device; 41. Guiding device; 42. Movable device; 411. Injection hopper; 412. Connecting ring; 413. Anti-detachment groove; 414. Protective shell; 415. Fixed shell; 416. Rotating hole; 421. Servo motor; 422. Drive gear; 423. Driven gear ring; 424. Anti-detachment ring; 425. Rotating ring; 426. Scraper; 427. Limiting ring; 428. Push block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5This utility model provides a technical solution: a plastic mold with an anti-clogging feeding mechanism, including a lower mold 1, a limit rod 2 fixedly connected to the outer wall of the lower mold 1, an upper mold 3 slidably connected to the outer wall of the limit rod 2, and an injection device 4, including a guide device 41, an injection hopper 411, and a movable device 42 slidably connected to the outer wall of the injection hopper 411; the movable device 42 includes a servo motor 421, a drive gear 422 fixedly connected to the output end of the servo motor 421, a driven gear ring 423 externally disposed on the servo motor 421, and anti-detachment rings 424 symmetrically fixedly connected to the outer wall of the driven gear ring 423. A rotating ring 425 is fixedly connected to the inner side wall of the moving gear ring 423. A scraper 426 is fixedly connected to the outer wall at the bottom of the rotating ring 425. A limit ring 427 is fixedly connected to the end of the scraper 426 away from the rotating ring 425. A push block 428 is fixedly connected to the bottom end of the limit ring 427. Plastic raw material is poured in from the top of the injection hopper 411 and guided into the mold cavity through the injection hopper 411. The movable device 42 is installed in the injection hopper 411. When the servo motor 421 is started, its output end drives the drive gear 422 to rotate. Since the drive gear 422 meshes with the driven gear ring 423, the driven gear ring 423 begins to rotate around the axis of the ring 412.

[0022] The outer wall of the injection hopper 411 is fixedly connected to the inner wall of the upper mold 3. The outer wall of the servo motor 421 is fixedly connected to the inner wall of the upper mold 3. The driving gear 422 meshes with the driven gear ring 423. The outer walls of the scraper 426 and the limiting ring 427 are slidably connected to the inner side wall of the injection hopper 411. The anti-detachment ring 424, which is symmetrically fixed to the outer wall of the driven gear ring 423, cooperates with the anti-detachment groove 413 opened on the outer wall of the connecting ring 412 and the protective shell 414. This not only restricts the axial movement of the driven gear ring 423, but also ensures that it can rotate smoothly. The rotating ring 425, which is fixed to the inner side wall of the driven gear ring 423, rotates synchronously with the driven gear ring 423. The scraper 426 and the limiting ring 427 connected to the bottom of the rotating ring 425 also rotate accordingly. The scraper 426 slides close to the inner side wall of the injection hopper 411, which can clean the plastic material attached to the inner wall of the injection hopper 411 in time and prevent the material from accumulating and causing blockage.

[0023] The guiding device 41 also includes a connecting ring 412, a protective shell 414 is fixedly connected to the outer wall of the connecting ring 412, and anti-detachment grooves 413 are provided on the outer wall of both the connecting ring 412 and the outer wall of the protective shell 414. A fixing shell 415 is fixedly connected to the outer wall of the protective shell 414, and a rotation hole 416 is provided in the wall of the fixing shell 415.

[0024] The outer wall of the bottom of the connecting ring 412 is fixedly connected to the outer wall of the top of the injection hopper 411. The outer walls of the protective shell 414 and the fixed shell 415 are both fixedly connected to the inner wall of the upper mold 3. The outer wall of the connecting ring 412 is slidably connected to the outer wall of the anti-detachment ring 424 through the anti-detachment groove 413. The outer wall of the protective shell 414 is slidably connected to the outer wall of the anti-detachment ring 424 through the anti-detachment groove 413. The inner wall of the fixed shell 415 is rotatably connected to the output end of the servo motor 421 through the rotating hole 416. The inner wall of the fixed shell 415 is slidably connected to the outer wall of the drive gear 422. The connecting ring 412 is connected to the injection hopper 411. The anti-detachment groove 413 on its outer wall cooperates with the anti-detachment ring 424 to ensure the stable operation of the moving device 42. The protective shell 414 and the fixed shell 415 are fixed to the inner wall of the upper mold 3. The protective shell 414 plays a protective role for the moving device 42 and prevents external impurities from entering and affecting the operation of the device.

[0025] When in use, the anti-clogging plastic mold of the feeding mechanism is made up of the lower mold 1, the upper mold 3 and the injection device 4 working together to effectively ensure that the plastic raw material is smoothly injected into the mold cavity and reduce the occurrence of clogging. The lower mold 1 is the basic support part of the entire mold and is fixed on the worktable. The limiting rod 2 fixed on it guides and limits the movement of the upper mold 3, ensuring accurate alignment of the upper mold 3 and the lower mold 1 during the mold closing and opening process.

[0026] The injection device 4 is the main part that prevents the feeding mechanism from clogging. The injection hopper 411 in the guiding device 41 is fixed to the inner wall of the upper mold 3. The plastic raw material is poured in from the top of the injection hopper 411 and guided into the mold cavity through the injection hopper 411. The movable device 42 is installed in the injection hopper 411. When the servo motor 421 is started, its output end drives the drive gear 422 to rotate. Since the drive gear 422 meshes with the driven gear ring 423, the driven gear ring 423 begins to rotate around the axis of the connecting ring 412. The anti-detachment ring 424, which is symmetrically fixed on the outer wall of the driven gear ring 423, cooperates with the anti-detachment groove 413 opened on the outer wall of the connecting ring 412 and the protective shell 414, which restricts the axis of the driven gear ring 423. The rotating ring 425, which is fixed to the inner side wall of the driven gear ring 423, rotates synchronously with the driven gear ring 423. The scraper 426 and the limiting ring 427 connected to the bottom of the rotating ring 425 also rotate. The scraper 426 slides close to the inner side wall of the injection hopper 411, which can clean the plastic material attached to the inner wall of the injection hopper 411 in time and prevent the material from accumulating and causing blockage. The limiting ring 427 not only supports the scraper 426, but also further ensures the stability of the scraper 426 during the cleaning process. The push block 428 connected to the bottom of the limiting ring 427 can assist in pushing the falling plastic material during the rotation, so that the material can enter the mold cavity more smoothly.

[0027] The connecting ring 412 connects the injection hopper 411 to the upper mold 3. Its outer wall has an anti-detachment groove 413 that cooperates with the anti-detachment ring 424 to ensure stable operation of the movable device 42. The protective shell 414 and the fixed shell 415 are fixed to the inner wall of the upper mold 3. The protective shell 414 protects the movable device 42, preventing external impurities from entering and affecting its operation. The fixed shell 415 is rotatably connected to the output end of the servo motor 421 through a rotating hole 416, and simultaneously supports and limits the drive gear 422, ensuring its stability during rotation.

[0028] By setting up the injection device 4, the plastic mold can continuously clean the inner wall of the injection hopper 411 during the feeding process, assisting in pushing the raw material, thereby effectively avoiding blockage of the feeding mechanism, ensuring stable injection of plastic raw material into the mold, and reducing downtime caused by cleaning blockages.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic mold for preventing blockage of the feeding mechanism, comprising a lower mold (1), wherein a limiting rod (2) is fixedly connected to the outer wall of the lower mold (1), and an upper mold (3) is slidably connected to the outer wall of the limiting rod (2), characterized in that: Also includes: An injection device (4) is provided, which includes a guide device (41), which includes an injection bucket (411), and a movable device (42) is slidably connected to the outer wall of the injection bucket (411). The active device (42) includes a servo motor (421), the output end of which is fixedly connected to a drive gear (422), a driven gear ring (423) is provided on the outside of the servo motor (421), an anti-detachment ring (424) is symmetrically fixedly connected to the outer wall of the driven gear ring (423), a rotating ring (425) is fixedly connected to the inner side wall of the driven gear ring (423), a scraper (426) is fixedly connected to the outer wall at the bottom of the rotating ring (425), a limit ring (427) is fixedly connected to the end of the scraper (426) away from the rotating ring (425), and a push block (428) is fixedly connected to the bottom end of the limit ring (427).

2. A plastic mold for preventing blockage of the feeding mechanism according to claim 1, characterized in that: The outer wall of the injection bucket (411) is fixedly connected to the inner wall of the upper mold (3), and the outer wall of the servo motor (421) is fixedly connected to the inner wall of the upper mold (3).

3. A plastic mold for preventing blockage of the feeding mechanism according to claim 1, characterized in that: The driving gear (422) meshes with the driven gear ring (423), and the outer wall of the scraper (426) and the outer wall of the limiting ring (427) are slidably connected to the side wall inside the injection bucket (411).

4. A plastic mold for preventing blockage of the feeding mechanism according to claim 1, characterized in that: The guiding device (41) further includes a connecting ring (412), and a protective shell (414) is fixedly connected to the outer wall of the connecting ring (412). Both the outer wall of the connecting ring (412) and the outer wall of the protective shell (414) are provided with anti-detachment grooves (413). A fixing shell (415) is fixedly connected to the outer wall of the protective shell (414), and a rotating hole (416) is provided in the wall of the fixing shell (415).

5. A plastic mold for preventing blockage of the feeding mechanism according to claim 4, characterized in that: The outer wall at the bottom of the connecting ring (412) is fixedly connected to the outer wall at the top of the injection hopper (411), and the outer walls of the protective shell (414) and the fixed shell (415) are both fixedly connected to the inner wall of the upper mold (3).

6. A plastic mold for preventing blockage of the feeding mechanism according to claim 4, characterized in that: The outer wall of the connecting ring (412) is slidably connected to the outer wall of the anti-detachment ring (424) through the anti-detachment groove (413). The outer wall of the protective shell (414) is slidably connected to the outer wall of the anti-detachment ring (424) through the anti-detachment groove (413). The inner wall of the fixed shell (415) is rotatably connected to the output end of the servo motor (421) through the rotating hole (416). The inner wall of the fixed shell (415) is slidably connected to the outer wall of the drive gear (422).

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