Die structure of multifunctional engine hood

By improving the mold structure and adopting a combination design of rear mold core, front mold core, slider and insert, the problems of complex mold structure and poor strength were solved, achieving efficient demolding and meeting product appearance requirements, reducing processing costs and increasing market share.

CN223720050UActive Publication Date: 2025-12-26ZHONGSHAN HORD RAPIDTOOLS CO LTD
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Patent Information

Application Number
CN202520164719.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2025-12-26
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

When traditional molds are used to process multi-sided concave snap-fit ​​parts with threaded inner holes in two directions, the mold structure is complex and the space is small, resulting in poor mold strength, easy deformation, and difficulty in meeting product assembly and appearance requirements.

Method used

The design incorporates components such as a rear mold core, a front mold core, a slider, and inserts. Through the cooperation of movable toothed inserts and sliders, the product can be simplified for demolding and venting. Combined with the core-pulling action of the slider driven by a hydraulic cylinder, the mold strength and product quality are ensured.

Benefits of technology

It improved the strength of the mold and the market share of the product, met the product assembly and appearance requirements, and controlled the processing cycle and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a die structure of a multifunctional engine cover, which comprises a rear die core, a die core, a die core, a die core and a die cover, wherein the middle part of the rear die core is fixedly connected with the die core; the front mold core is arranged above the rear mold core, and a mold cavity matched with the mold core is formed in the front mold core; the sliding blocks are arranged at the top of the rear mold core, the sliding blocks comprise the first sliding block, the third sliding block and the second sliding block which are adjacently arranged at the top of the rear mold core and are used for demolding and exhausting buckling positions on the outer side of a product, and a driving part is arranged on the outer side of the rear mold core and is used for driving the sliding blocks. The mold has the beneficial effects that movable insert teeth are formed at the tooth positions of the two inner holes, the left and right upper sliding blocks are used for core pulling to directly form concave buckling positions, and the two tooth position inserts are manually rotated after a product is formed, so that the product assembly and appearance requirements and the mold quality are ensured, the machining period and cost of the mold are controlled, the requirements of customers are met, and the production efficiency is improved. And the market share of the whole product is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, concretely is a mould structure of multi -functional engine bonnet. BACKGROUND

[0002] In the mould processing industry, the product of the appearance piece with two direction inner holes with a threaded outer appearance piece of multi-side inner concave shape buckle, because the inner thread is only with the inner side and the hole diameter is small, according to the traditional processing method, the thread rolling and sliding block structure (one straight sliding out of mould one rotation out of tooth) are made in two inner hole positions, and the complex mould structure and small space will cause the risk of poor mould strength and easy deformation. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a mould structure of multi -functional engine bonnet to solve the problem in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a mould structure of multi -functional engine bonnet, comprising:

[0005] The rear mold core is fixedly connected with a mold core in the middle part;

[0006] The front mold core is placed above the rear mold core, and the inside of the front mold core is provided with a mold cavity matched with the mold core;

[0007] The sliding block is placed on the top of the rear mold core, and the sliding block includes a sliding block one, a sliding block three and a sliding block two adjacently arranged on the top of the rear mold core, which is used for product outside buckle demolding and exhaust, and the outside of the rear mold core is provided with a driving part for driving the sliding block;

[0008] The insert is placed above the rear mold core, and the insert includes a movable tooth insert one and a movable tooth insert two, the movable tooth insert one is installed at the end of the sliding block one, and the movable tooth insert two is installed at the end of the sliding block three, which is used for simplifying thread demolding and exhaust.

[0009] As a preferred, the top of the front mold core is fixedly connected with a flow channel insert, and the bottom of the rear mold core is provided with a groove matched with the sliding block.

[0010] As a preferred, the top of the rear mold core is provided with a sliding groove for the sliding of the sliding block one, the sliding block two and the sliding block three, and the sliding block one and the sliding block two are symmetrical about the sliding block three.

[0011] As a preferred, the driving part includes three support frames fixedly connected to the outside of the rear mold core, and the middle part of each of the three support frames is fixedly connected with an oil cylinder, and the output end of each of the three oil cylinders is fixedly connected with a corresponding sliding block.

[0012] As preferred, the bottom of the rear mold core is fixedly connected with a base, the inside of the base is fixedly connected with a plurality of supporting columns, and the outside of the supporting columns is sleeved with springs.

[0013] As preferred, the inside of the base is provided with a needle plate, and the needle plate is in sliding connection with the supporting columns.

[0014] As preferred, the top of the needle plate is fixedly connected with a dome needle, and the dome needle is in sliding connection with the mold core.

[0015] Compared with the prior art, the beneficial effects of the utility model are that: through making movable inserts out of teeth at two inner hole tooth positions, directly out of concave buckle positions by left and right upper sliding blocks, and manually turning two tooth position inserts out after products are out, the product assembly, appearance requirements and mold quality are ensured, the processing period and cost of the mold are controlled, the needs of customers are met, and the market share of the overall product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the rear mold core of the utility model;

[0018] Figure 3 It is a structural schematic view of the front mold core of the utility model;

[0019] Figure 4 It is a front view of the utility model;

[0020] Figure 5 It is an explosion view of the utility model;

[0021] Figure 6 It is a structural schematic view of an oil cylinder of the utility model;

[0022] Figure 7 It is a structural schematic view of the utility model when the sliding blocks are assembled;

[0023] Figure 8 It is a structural schematic view of the utility model when the sliding blocks are separated;

[0024] Figure 9 It is a structural schematic view of a dome needle of the utility model.

[0025] In the drawing: 1, flow channel insert; 2, front mold core; 3, movable tooth insert one; 4, movable tooth insert two; 5, rear mold core; 6, sliding block one; 7, sliding block two; 8, sliding block three; 9, dome needle; 10, base; 11, needle plate; 12, spring; 13, supporting column; 14, supporting frame; 15, oil cylinder. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figure 1 、 2 , 3, 4, 5, 6, 7, 8, 9, the utility model provides a technical scheme: a mould structure of multifunctional engine hood, include: rear mould core 5, the middle part of rear mould core 5 is fixedly connected with mould core, front mould core 2 is placed in the upper of rear mould core 5, and the inside of front mould core 2 is equipped with the mould cavity that cooperates with mould core, slider is placed in the top of rear mould core 5, and slider includes slider one 6, slider three 8 and slider two 7 that are adjacent and are arranged in the top of rear mould core 5, is used for product outside buckle position demoulding and exhaust, and the outside of rear mould core 5 is equipped with driving portion for driving slider, insert part is placed in the upper of rear mould core 5, and insert part includes movable tooth insert part one 3 and movable tooth insert part two 4, movable tooth insert part one 3 is installed in the end of slider one 6, movable tooth insert part two 4 is installed in the end of slider three 8, and is used for simplifying thread demoulding and exhaust.

[0028] It should be noted that the utility model mould injection molding is completed to open the mould, and the runner is separated from the glue inlet to flow channel insert part 1 and front mould 2 by pulling the panel; continue to open the mould to separate AB plate, and the front mould 2 is synchronously separated from the product, and then the two oil cylinders 15 are controlled to core-pulling to drive the two sliders one 6 and slider three 8 to slide outward to separate the product buckle; then the other oil cylinder 15 is controlled to core-pulling to drive the slider 7 to slide outward to separate the product buckle; the pin plate 11 is pushed by the top pin to drive the dome needle 9 to eject the product from the movable tooth insert part one 3 and movable tooth insert part two 4 and rear mould 5; the product assembly with movable tooth insert part one 3 and movable tooth insert part two 4 is taken out and placed on the fixture; the movable tooth insert part one 3 and movable tooth insert part two 4 are manually taken out in order.

[0029] Please refer to Figure 4 、 5 , 6, the top of front mould core 2 is fixedly connected with flow channel insert part 1, and the bottom of rear mould core 5 is equipped with groove that cooperates with slider.

[0030] It should be noted that the utility model front mould core 2 is located in the upper portion of the mould, and is cooperated with rear mould core 5 to form the mould cavity of product; the inside of front mould core has space that cooperates with mould core, for forming the shape of product; flow channel insert part 1 is guided to melt plastics into mould cavity, is connected with the nozzle of injection molding machine, so that plastics can enter mould cavity along flow channel and be injected.

[0031] Please refer to Figure 2 、 5The top of the rear mold core 5 is provided with sliding grooves for the sliding blocks one 6, the sliding blocks two 7 and the sliding blocks three 8, the sliding blocks one 6 and the sliding blocks two 7 are symmetrical about the sliding blocks three 8, and the driving part comprises three supporting frames 14 fixed to the outside of the rear mold core 5, and the middle parts of the three supporting frames 14 are fixedly connected with oil cylinders 15, and the output ends of the three oil cylinders 15 are fixed with corresponding sliding blocks.

[0032] Need to explain, before the mold of the utility model closes, first reset the ejector pin 9 to the bottom, then put the movable tooth insert one 3 and the movable tooth insert two 4 into the sliding block according to the position sequence, make the movable tooth insert two 4 connect with the sliding blocks three 8, the movable tooth insert one 3 connect with the sliding blocks one 6, then push an oil cylinder 15 to move and slide the sliding blocks two 7 inward to reset, after reaching the position, continue to push two oil cylinders 15 to move and slide the sliding blocks one 6 and the sliding blocks three 8 inward to reset, after reaching the position, then close the front mold core 2, the rear mold core 5 and the AB plate, continue to close the mold to make the panel reach the position, finally the injection molding machine produces by injecting glue.

[0033] Please refer to Figure 5 、 7 、8、9, the bottom of the rear mold core 5 is fixedly connected with a base 10, a plurality of supporting columns 13 are fixedly connected in the base 10, springs 12 are sleeved on the outer sides of the supporting columns 13, a needle plate 11 is arranged in the base 10, the needle plate 11 is slidably connected with the supporting columns 13, a round ejector pin 9 is fixedly connected to the top of the needle plate 11, and the round ejector pin 9 is slidably connected with the mold core.

[0034] Need to explain, when demolding, the needle plate can slide according to the need, drive the round ejector pin 9 to eject the product from the movable tooth insert one 3 and the movable tooth insert two 4 and separate from the rear mold 5, help the product to be demolded smoothly, when the external force applied to the needle plate is removed, the needle plate drives the round ejector pin 9 to reset under the action of the spring 12, and the injection molding processing can be carried out again.

[0035] In the description of the utility model, it is understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0036] In addition, the terms "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so that the features limited by "first", "second", "third" and "fourth" can explicitly or implicitly include at least one of the features.

[0037] In the utility model, unless another explicit provision and limitation, the terms "mount", "set", "connect", "fix", "screw" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or become an integral whole, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through the intermediate medium, can be two element internal communication or two element's mutual action relation, unless another explicit limitation, for the ordinary skill in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0038] Although the embodiments of the utility model have been shown and described, for the ordinary skill in the art, it can be understood that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A mold structure of a multi-functional hood, characterized by: The utility model relates to a mould structure for injection moulding of a threaded product, which comprises: a rear mould core (5) with a mould core fixedly connected to the middle part of the rear mould core (5); a front mould core (2) placed above the rear mould core (5), the inside of the front mould core (2) being provided with a mould cavity matched with the mould core; a slide block placed on the top of the rear mould core (5), the slide block comprising a slide block one (6), a slide block three (8) and a slide block two (7) adjacently arranged on the top of the rear mould core (5) for product outside clamping position demoulding and air exhausting, the outside of the rear mould core (5) being provided with a driving part for driving the slide block; an insert placed above the rear mould core (5), the insert comprising a movable tooth insert one (3) and a movable tooth insert two (4), the movable tooth insert one (3) being installed at the end of the slide block one (6), the movable tooth insert two (4) being installed at the end of the slide block three (8) for simplifying threaded demoulding and air exhausting.

2. The mold structure for a multi-functional hood of claim 1, wherein: The top of the front mould core (2) is fixedly connected with a runner insert (1), and the bottom of the rear mould core (5) is provided with a groove matched with the slide block.

3. The mold structure for a multi-functional hood of claim 1, wherein: The top of the rear mould core (5) is provided with a sliding groove for the slide block one (6), the slide block two (7) and the slide block three (8) to slide, and the slide block one (6) and the slide block two (7) are symmetrical about the slide block three (8).

4. The mold structure for a multi-functional hood of claim 1, wherein: The driving part comprises three support frames (14) fixedly connected to the outside of the rear mould core (5), the middle part of each of the three support frames (14) being fixedly connected with an oil cylinder (15), and the output end of each of the three oil cylinders (15) being fixedly connected with a corresponding slide block.

5. The mold structure for a multi-functional hood of claim 1, wherein: The bottom of the rear mould core (5) is fixedly connected with a base (10), the inside of the base (10) being fixedly connected with a plurality of support columns (13), and the outside of the support columns (13) being sleeved with springs (12).

6. The mold structure for a multi-functional hood of claim 5, wherein: The inside of the base (10) is provided with a needle plate (11), and the needle plate (11) is slidably connected with the support columns (13).

7. The mold structure for a multi-functional hood of claim 6, wherein: The top of the needle plate (11) is fixedly connected with a round top needle (9), and the round top needle (9) is slidably connected with the mould core.