A new type of multi-order mold opening drive inner row demolding structure

Abstract

The utility model relates to injection mold technical field discloses a novel multiple order demolding structure of driving inner row position, including opening mould order buckle machine, back reset buckle machine, front mould fixed plate, hot runner plate, backing plate, A board, guide block, inner row position main part, shovel, oblique and shrink core, the shrink core fixed setting is on the hot runner plate, the oblique and slide setting is between shovel and shrink core, the shovel fixed setting is in the backing plate, the inner row position main part slide setting is between shovel and guide block, opening mould order buckle machine and back reset buckle machine all fixed settings are in fixed mould side. In the utility model, the problem of traditional opening mould order single is solved by the multi-stage order opening mould control mechanism, avoids the movement interference of demolding part, provides reliable demolding scheme for complex internal reverse buckle and deep cavity product, its modular design collocates detachable connecting structure, enhances mould versatility and flexibility, greatly reduces the customization design, manufacturing cost, shortens production cycle.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a novel demolding structure that uses multi-sequence mold opening to drive the inner part. Background Technology

[0002] In the field of injection mold technology, for complex plastic products with internal undercuts, deep cavities, or multi-directional undercuts, the demolding process is a crucial step in ensuring product molding quality and production efficiency. Currently, the industry commonly uses internal sliding mechanisms or angled ejector mechanisms as the core demolding components. These mechanisms drive the movement of components through a single sequential mold opening action, achieving separation of the product from the mold cavity. Specifically, this type of traditional structure relies on a fixed transmission path, enabling the internal sliding mechanism or angled ejector to simultaneously complete the core pulling and unhooking actions during the mold opening process. It is suitable for the production of relatively simple plastic products and has been widely used in conventional injection molding production.

[0003] However, existing technical solutions have significant drawbacks and are difficult to meet the demolding requirements of complex structural products. On the one hand, the opening sequence of traditional demolding structures is fixed and singular, and can only achieve single-time synchronous core pulling and release. When the product has multiple sets of internal undercuts or molding obstructions in different directions, the movement trajectories of each demolding component are prone to interference, resulting in incomplete core pulling, failed release, or even product scratches and mold damage. On the other hand, existing structures are mostly customized designs for specific products, with fixed component connections and a lack of modular adaptability. They cannot be flexibly adjusted to adapt to products with different structural complexities, which not only limits the applicability of the mold but also leads to a longer design cycle and increased manufacturing costs for customized molds. In addition, the single-sequence mold opening design makes it difficult to accurately control the timing and stroke of each demolding step, resulting in insufficient demolding reliability for deep-cavity or multi-undercut products, further restricting the production efficiency and quality stability of complex plastic products.

[0004] Therefore, those skilled in the art have provided a novel demolding structure that uses multi-sequence mold opening to drive the inner part, in order to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a novel multi-sequence mold opening mechanism that drives the inner sliding part. Through the coordinated operation of the mold opening sequence locking machine and the rear reset locking machine, a multi-stage orderly mold opening control mechanism is constructed, completely solving the defect of the single mold opening action in traditional mold release structures. This ensures that the inclined pull and the inner sliding part complete the core pulling and unlocking actions sequentially and accurately, fundamentally avoiding interference between parts. Simultaneously, it provides a reliable and efficient mold release solution for complex plastic products with internal undercuts, deep cavities, or multi-directional undercuts, breaking through the limitations of traditional mold design and effectively guaranteeing product molding quality. Furthermore, this structure adopts a modular design with clear connections between components, and the backing plate and A-plate are detachably connected, allowing for flexible adaptation to the demolding needs of products with different structures. It breaks away from the inherent design thinking of traditional molds, significantly enhancing the versatility and flexibility of the mold, greatly reducing the design, manufacturing, and maintenance costs of customized molds, and shortening the production cycle.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A novel multi-sequence mold opening mechanism for demolding inner slides includes a mold opening sequence clamping device, a rear reset clamping device, a front mold fixing plate, a hot runner plate, a pad plate, an A plate, a guide block, an inner slide body, a shovel, a slanted puller, and a shrinking clip. The shrinking clip is fixedly mounted on the hot runner plate, the slanted puller is slidably mounted between the shovel and the shrinking clip, the shovel is fixedly mounted inside the pad plate, the inner slide body is slidably mounted between the shovel and the guide block, the mold opening sequence clamping device and the rear reset clamping device are both fixedly mounted on the fixed mold side, and the front mold fixing plate, the hot runner plate, the pad plate and the A plate are fixedly connected sequentially from top to bottom. Through the above technical solution, a modular demolding structure with multi-component collaboration is constructed. The mold opening sequence is controlled by the positional layout of the mold opening sequence buckle and the rear reset buckle. The sliding cooperation between the shrinking tool and the shovel and the oblique pull and inner sliding main body respectively provides a basis for multi-sequence actions, which solves the problem of the single mold opening sequence of the traditional structure. This makes it possible to demold complex internal undercut products in stages, and improves the mold's adaptability to complex products.

[0007] Furthermore, the shrinkage plate is fixedly disposed on the lower end face of the hot runner plate and is disposed adjacent to the inclined plate; The above technical solution clarifies the fixed position of the core shrinker and the hot runner plate, as well as their adjacent relationship with the inclined core puller. This ensures that the hot runner plate can directly drive the core shrinker to move synchronously when it moves, thereby providing power transmission for the inclined core puller, ensuring the timeliness and stability of the core pulling action, and avoiding demolding failures caused by power transmission delays.

[0008] Furthermore, the shovel is fixedly installed inside the pad, with one side slidingly engaged with the inclined puller and the other side slidingly engaged with the inner moving body; The above technical solution enables the loader to simultaneously have sliding cooperation functions with the inclined pull and the inner sliding body. It provides a stable guide trajectory for the inclined pull and can transmit motion power to the inner sliding body under the drive of the pad plate. This achieves bidirectional adaptation of a single component, simplifies the mold structure, reduces the setting of additional transmission components, and lowers the mold design and manufacturing costs.

[0009] Furthermore, the mold opening sequence fastener is fixedly installed at the corresponding position between the front mold fixing plate and the hot runner plate; Through the above technical solution, the mold opening sequence buckle machine can directly control the mold opening action between the front mold fixing plate and the hot runner plate, accurately control the start and stop timing of PL1 mold opening, and ensure that the oblique pull completes the core pulling action before entering the next mold opening stage. From the structural layout, it avoids the movement interference between the oblique pull and the inner sliding body.

[0010] Furthermore, the rear reset buckle is fixedly installed at the corresponding position between the pad plate and the front mold fixing plate; Through the above technical solution, the resetting buckle can promptly press against the pad during the PL1 mold opening stage, effectively preventing the pad from rebounding due to the mold opening impact force, ensuring the stability of the PL1 mold opening stage, providing structural support for the smooth start of the subsequent PL2 mold opening, and avoiding the disorder of the mold opening sequence caused by the pad rebound.

[0011] Furthermore, the guide block is fixedly mounted on plate A, and a guide groove adapted to the inner sliding body is provided on its inner side, and the inner sliding body is slidably mounted in the guide groove; By utilizing the above technical solution and the matching structure between the guide groove and the inner body, the disengagement action of the inner body is provided with guidance and limit, ensuring that the inner body moves smoothly along the preset trajectory, avoiding disengagement failure or product damage caused by movement deviation, and improving the accuracy of the demolding action and the product molding quality.

[0012] Furthermore, the cavity opened on the A plate contains a corresponding product, and the cavity is arranged adjacent to the inner sliding body and the oblique drawer; The above technical solution enables the cavity, the inner sliding body, and the inclined pull to form a close adjacent layout, which not only provides a complete molding space for the product, but also allows the inner sliding body and the inclined pull to directly act on the undercut part of the product during demolding, shortening the transmission path of the demolding force, ensuring that the product is smoothly released from the cavity, and avoiding deformation or scratches on the product during the demolding process.

[0013] Furthermore, the front mold fixing plate, hot runner plate and pad are all fixedly connected by fasteners, and the pad and plate A are detachably connected; Through the above technical solutions, the fastener connection between the front mold fixing plate, the hot runner plate and the pad plate ensures the structural stability of the main frame of the mold and resists the impact force during the mold opening process. The detachable connection between the pad plate and the A plate enhances the convenience of mold maintenance. The A plate can be quickly disassembled and replaced or internal parts can be adjusted according to the molding requirements of different products, which reduces the cycle and cost of customized production and improves the versatility of the mold.

[0014] This utility model has the following beneficial effects: 1. This utility model proposes a novel multi-sequence mold opening mechanism that drives the inner slide to release the mold. Through the coordinated operation of the mold opening sequence locking machine and the rear reset locking machine, a multi-stage orderly mold opening control mechanism is constructed. This effectively solves the defect of the single mold opening action of the traditional mold release structure, ensuring that the inclined pull and the inner slide body complete the core pulling and release actions in sequence. This avoids interference between parts from the root and greatly improves the stability and reliability of the demolding process.

[0015] 2. This utility model proposes a novel multi-sequence mold opening and inner sliding demolding structure, which is designed for complex plastic products with internal undercuts, deep cavities or multi-directional undercuts. Through the precise matching of shrinkage, scraper and oblique pull, and inner sliding body, it provides an efficient and reliable demolding solution, which breaks through the limitations of traditional mold design for demolding complex structure products, effectively reduces product deformation, scratches and other problems during demolding, and ensures product molding quality.

[0016] 3. The present invention proposes a novel multi-sequence mold opening mechanism that drives the inner part of the mold. It adopts a modular structural design with clear connections between the components and a reasonable layout. At the same time, the detachable connection design between the pad and the A plate allows it to flexibly adapt to the demolding requirements of different structural products, reducing the design and manufacturing costs of customized molds, shortening the production cycle, significantly enhancing the versatility and practical value of the mold, and breaking the inherent design thinking of traditional molds. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall assembly of a novel multi-sequence mold opening and inner-row demolding structure proposed in this utility model. Figure 2 This is an exploded isometric view of the shrinkage mechanism, shovel, inclined puller, inner slide and guide block of a novel multi-sequence mold opening and inner slide demolding structure proposed in this utility model. Figure 3 This is an isometric view of the assembly state of the shrinkage mechanism, shovel, inclined puller, inner slide and guide block of a novel multi-sequence mold opening and inner slide demolding structure proposed in this utility model. Figure 4This is an isometric view of the assembly state two of the demolding structure of the new multi-sequence mold opening driven inner slide, including the shrinkage chuck, shovel, oblique pull, inner slide and guide block. Figure 5 This is an isometric view of the overall mold opening state of a novel multi-sequence mold opening structure that drives the inner position for demolding, as proposed in this utility model. Figure 6 This is another perspective of the overall assembly isometric schematic diagram of a novel multi-sequence mold opening mechanism that drives the inner part of the mold release structure proposed in this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Mold opening sequence fastener; 2. Rear reset fastener; 3. Front mold fixing plate; 4. Hot runner plate; 5. Backing plate; 6. A plate; 7. Product; 8. Guide block; 9. Inner sliding body; 10. Scraper; 11. Angled pull; 12. Shrinking plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Reference Figure 1-6 This utility model provides a specific embodiment: a novel multi-sequence mold opening mechanism for driving the inner slide, comprising a mold opening sequence clamping mechanism 1, a rear reset clamping mechanism 2, a front mold fixing plate 3, a hot runner plate 4, a pad plate 5, an A plate 6, a guide block 8, an inner slide body 9, a shovel 10, a slanted drawer 11, and a shrinking bracket 12. The shrinking bracket 12 is fixedly mounted on the hot runner plate 4. The slanted drawer 11 is slidably mounted between the shovel 10 and the shrinking bracket 12. The shovel 10 is fixedly mounted inside the pad plate 5. The inner slide body 9 is slidably mounted between the shovel 10 and the guide block 8. The mold opening sequence clamping mechanism 1 and the rear reset clamping mechanism... Both are fixedly set on the fixed mold side. The front mold fixing plate 3, hot runner plate 4, pad plate 5 and A plate 6 are fixedly connected from top to bottom, forming a modular demolding structure with multiple components working together. The mold opening sequence is controlled by the position layout of the mold opening sequence buckle 1 and the rear reset buckle 2. The sliding cooperation between the shrinking plate 12 and the scraper 10 and the inclined pull 11 and the inner sliding body 9 respectively provides the basis for multi-sequence action, solves the problem of the single mold opening sequence of the traditional structure, and makes the staged demolding of complex internal undercut products 7 possible, improving the mold's adaptability to complex products 7.

[0021] The shrink tube 12 is fixedly installed on the lower end face of the hot runner plate 4 and adjacent to the inclined tube 11. This clarifies the fixed position of the shrink tube 12 and the hot runner plate 4, as well as their adjacent relationship with the inclined tube 11. This ensures that the hot runner plate 4 can directly drive the shrink tube 12 to move synchronously, thereby providing power transmission to the inclined tube 11. This guarantees the timeliness and stability of the core-pulling action and avoids demolding failures caused by delayed power transmission. The scraper 10 is fixedly installed inside the pad 5. One side of the scraper 10 slides with the inclined tube 11, and the other side slides with the inner sliding body 9. This allows the scraper 10 to simultaneously slide with both the inclined tube 11 and the inner sliding body 9, providing a stable guide trajectory for the inclined tube 11 and transmitting motion power to the inner sliding body 9 under the drive of the pad 5. This achieves bidirectional operation of a single component. The design simplifies the mold structure, reduces the need for additional transmission components, and lowers mold design and manufacturing costs. The mold opening sequence locking mechanism 1 is fixedly positioned between the front mold fixing plate 3 and the hot runner plate 4, allowing it to directly control the mold opening action between them. This accurately controls the start and stop timing of PL1 mold opening, ensuring that the angled puller 11 completes its core-pulling action before entering the next mold opening stage. The structural layout avoids motion interference between the angled puller 11 and the inner sliding body 9. The rear reset locking mechanism 2 is fixedly positioned between the pad 5 and the front mold fixing plate 3, allowing it to promptly press against the pad 5 during PL1 mold opening, effectively preventing the pad 5 from springing back due to the mold opening impact and ensuring the safety of PL1. The stability of the mold opening stage provides structural support for the smooth start of the subsequent PL2 mold opening, avoiding the disorder of the mold opening sequence caused by the springback of the pad 5. The guide block 8 is fixedly set on the A plate 6, and its inner side is provided with a guide groove that matches the inner slide body 9. The inner slide body 9 is slidably set in the guide groove. The matching structure between the guide groove and the inner slide body 9 provides guidance and limit for the release action of the inner slide body 9, ensuring that the inner slide body 9 moves smoothly along the preset trajectory, avoiding release failure or damage to the product 7 caused by movement deviation, and improving the accuracy of the demolding action and the molding quality of the product 7. The cavity opened on the A plate 6 is provided with the corresponding product 7, and the cavity is adjacent to the inner slide body 9 and the inclined drawer 11, so that the cavity and the inner slide body 9 and the inclined drawer 11 are in a certain shape. The closely spaced arrangement provides ample molding space for product 7 and allows the inner sliding body 9 and the angled pull 11 to directly act on the undercut portion of product 7 during demolding. This shortens the transmission path of the demolding force, ensuring product 7 smoothly detaches from the cavity and preventing deformation or scratches during demolding. The front mold fixing plate 3, hot runner plate 4, and backing plate 5 are all fixedly connected by fasteners. The backing plate 5 and A plate 6 are detachably connected. The fastener connection between the front mold fixing plate 3, hot runner plate 4, and backing plate 5 ensures the structural stability of the mold's main frame, resisting impact forces during mold opening. The detachable connection between backing plate 5 and A plate 6 enhances the ease of mold maintenance, allowing for quick disassembly and replacement of A plate 6 or adjustment of internal components according to the molding requirements of different products 7.This reduces the cycle time and cost of customized production and improves the versatility of molds.

[0022] Working principle: In the mold-closed state, product 7 is fitted into the cavity of plate A 6. The inclined pull 11 and the inner sliding body 9 are respectively positioned in the preset working position required for product 7 forming through cooperation with the scraper 10, the shrinking sag 12 and the guide block 8. All parts are tightly fitted and have no relative movement. When the mold starts the mold opening program, the mold opening sequence latch 1, which is fixed between the front mold fixing plate 3 and the hot runner plate 4, is activated first, controlling the first mold opening surface PL1 to open. The front mold fixing plate 3 and the hot runner plate 4 are separated relative to each other. The hot runner plate 4 synchronously drives the shrinking sag 12, which is fixed to its lower end face, to move along the mold opening direction. Since the shrinking sag 12 and the inclined pull 11 are adjacent and form a transmission cooperation, the shrinking sag 12 drives the inclined pull 11 to perform a core pulling action along the lateral sliding surface of the scraper 10 during the movement. At this time, the scraper 10 provides a stable guide trajectory for the inclined pull 11 to ensure that the core pulling action is accurate and in place. At the same time, the rear reset latch 2, which is fixed between the pad plate 5 and the front mold fixing plate 3, is activated immediately and tightly presses against the pad plate. 5. Effectively resists the impact force generated during the mold opening process, prevents the backing plate 5 from rebounding and shifting, and ensures the stability of the PL1 mold opening stage. After PL1 is in place, the inclined pull 11 is completely separated from the undercut part of the product 7 and the core is pulled out, the mold opening sequence locking machine 1 is unlocked, the second mold opening surface PL2 is started to open, and the backing plate 5 drives the shovel 10 embedded inside it to move synchronously with the mold opening action. At this time, the shovel 10 switches functions, and the sliding cooperation relationship between its other side and the inner sliding body 9 begins to play a role, transmitting motion power to the inner sliding body 9, driving the inner sliding body 9 to slide smoothly along the matching guide groove on the inner side of the guide block 8, and gradually completing the unhooking action. Since there is motion interference between the inclined pull 11 and the inner sliding body 9, the two-stage mold opening sequence controlled by the mold opening sequence locking machine 1 ensures that the two act in sequence and do not interfere with each other. Finally, under the synergistic action of the inclined pull 11 and the inner sliding body 9, the product 7 is smoothly separated from the cavity of the A plate 6, realizing the orderly and reliable demolding of the complex internal undercut structure product 7.

[0023] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0024] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. 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 novel demolding structure for a multi-sequence mold opening mechanism driving an inner slide, comprising a mold opening sequence clamping mechanism (1), a rear reset clamping mechanism (2), a front mold fixing plate (3), a hot runner plate (4), a pad plate (5), an A plate (6), a guide block (8), an inner slide body (9), a shovel mechanism (10), a slanted puller (11), and a shrinking sprue (12), characterized in that: The shrinkage plate (12) is fixedly mounted on the hot runner plate (4). The inclined puller (11) is slidably mounted between the shovel (10) and the shrinkage plate (12). The shovel (10) is fixedly mounted inside the pad plate (5). The inner sliding body (9) is slidably mounted between the shovel (10) and the guide block (8). The mold opening sequence fastener (1) and the rear reset fastener (2) are both fixedly mounted on the fixed mold side. The front mold fixing plate (3), the hot runner plate (4), the pad plate (5) and the A plate (6) are fixedly connected from top to bottom.

2. The novel multi-sequence mold opening and inner slide demolding structure according to claim 1, characterized in that: The shrink tube (12) is fixedly installed on the lower end face of the hot runner plate (4) and is installed adjacent to the inclined tube (11).

3. The novel multi-sequence mold opening and inner slide demolding structure according to claim 1, characterized in that: The shovel (10) is fixedly installed inside the pad (5), with one side slidingly engaged with the inclined pull (11) and the other side slidingly engaged with the inner moving body (9).

4. The novel multi-sequence mold opening and inner slide demolding structure according to claim 1, characterized in that: The mold opening sequence fastener (1) is fixedly installed at the corresponding position between the front mold fixing plate (3) and the hot runner plate (4).

5. The novel multi-sequence mold opening and inner slide demolding structure according to claim 1, characterized in that: The rear reset buckle (2) is fixedly installed at the corresponding position between the pad (5) and the front mold fixing plate (3).

6. The novel multi-sequence mold opening and inner slide demolding structure according to claim 1, characterized in that: The guide block (8) is fixedly mounted on plate A (6), and a guide groove adapted to the inner row body (9) is provided on its inner side. The inner row body (9) is slidably mounted in the guide groove.

7. The novel multi-sequence mold opening and inner slide demolding structure according to claim 1, characterized in that: The cavity opened on the A plate (6) contains a corresponding product (7), and the cavity is adjacent to the inner row body (9) and the oblique drawer (11).

8. The novel multi-sequence mold opening and inner slide demolding structure according to claim 1, characterized in that: The front mold fixing plate (3), hot runner plate (4) and pad plate (5) are all fixedly connected by fasteners, and the pad plate (5) and A plate (6) are detachably connected.

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