A mold for a discharge port

Abstract

This utility model discloses a mold for a discharge port, relating to the field of mold manufacturing technology. The mold aims to solve the problem of existing technologies being unable to integrally form complex discharge ports with lateral grooves or inverted internal cavities. This utility model includes a fixed mold part and a moving mold part; the core lies in the moving mold part, which houses a set of movable core assemblies. These movable core assemblies are mounted on a core fixing plate and include a fixed core and a first and second movable insert that can slide on a guide rail. The movable inserts are driven by a drive cylinder and can open and close relative to the fixed core. When the mold is closed, the movable inserts and the fixed core together form a complete core for molding the internal cavity of the part. After the mold is opened, the drive cylinder drives the movable inserts to retract, completing lateral core pulling and allowing the part to be easily demolded. This utility model features an ingenious structural design and a high degree of automation, enabling efficient and stable production of complex discharge ports, thus improving product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, and in particular to a mold for a discharge port. Background Technology

[0002] The discharge port is a common component in industrial equipment, especially in vibrating screens and sorting machines, where its structure directly affects the material conveying efficiency and the overall performance of the equipment. Some high-performance discharge ports are designed with complex structures such as lateral grooves and inverted designs in their internal cavities to achieve specific flow guiding or connection functions.

[0003] For discharge ports with complex structures, traditional straight-opening molds, due to their single opening direction, cannot smoothly demold parts with undercut features. Existing production methods typically employ two solutions: one is to use more complex molds with inclined guide pillars or hydraulic core-pulling mechanisms, but these molds have complex structures, high manufacturing costs, and are difficult to maintain; the other is to perform secondary machining on simply formed blanks, but this increases the number of processes, reduces production efficiency, and makes it difficult to guarantee machining accuracy.

[0004] Therefore, the market urgently needs a mold with a relatively simple structure, stable and reliable operation, and the ability to achieve automated production, specifically designed for forming such complex material outlets. Utility Model Content

[0005] The purpose of this application is to provide a mold for a discharge port, which aims to solve the problem in the prior art of efficiently and cost-effectively integrally molding discharge ports with internal cavity undercuts or complex lateral structures.

[0006] To achieve the above objectives, this application provides the following technical solution: a mold for a discharge port, comprising a fixed mold portion and a moving mold portion. The moving mold portion includes a core fixing plate, on which a set of movable core assemblies is provided. The movable core assembly includes a fixed core, a first movable insert, and a second movable insert. The mold also includes a drive mechanism, which is directly connected to the first movable insert for driving its movement. This solution achieves the integral molding of complex structural parts through a clever lateral core-pulling mechanism.

[0007] Preferably, a mechanical locking structure is provided between the first movable insert and the second movable insert, which synchronously drives the second movable insert to move when the first movable insert moves. This design requires only a single drive source to achieve synchronous linkage between the two sliders, simplifying the structure and ensuring the accuracy of the action.

[0008] Preferably, the driving mechanism is a drive cylinder. Cylinder drive has a fast response speed, is easy to automate, and improves production efficiency.

[0009] Preferably, the piston rod of the drive cylinder is provided with a piston rod guide sleeve to ensure the stability of the piston rod's linear motion. This effectively avoids piston rod offset and vibration during long stroke motion, ensuring the smooth operation and durability of the core-pulling mechanism.

[0010] Preferably, the moving mold section further includes a guide rail for guiding the movement of the first and second movable inserts, and both the first and second movable inserts are provided with guide grooves that slide in conjunction with the guide rail. This structure provides precise guidance for the reciprocating motion of the first and second movable inserts, ensuring positioning accuracy during core pulling and mold closing processes.

[0011] Preferably, the core fixing plate has a core positioning groove for mounting and fixing the core. This design ensures that the fixing core is in a stable and reliable reference position in the mold, which is the basis for ensuring the dimensional accuracy of the product.

[0012] Preferably, the fixed mold portion includes a concave mold plate, within which a cavity is formed for assembling with the movable core to form a closed mold cavity. The precise fit between the cavity and the movable core together defines the final shape and dimensions of the part.

[0013] In summary, the technical effects and advantages of this utility model are as follows: In this invention, by setting up a movable core assembly driven by a cylinder, the side core pulling function is realized. It can injection mold a discharge port with complex structures such as internal cavity undercut or side groove in one step without secondary processing, thus realizing the one-piece molding of complex structures.

[0014] In this invention, a drive cylinder is used as the power source to automate the core-pulling action. Compared with manual or semi-automatic molds, the production cycle is faster, the efficiency is significantly improved, the degree of automation is high, and the production efficiency is high.

[0015] In this invention, the movable insert moves under the guidance of a dedicated guide rail, ensuring the smoothness of the core pulling and mold closing process and the accuracy of positioning. This ensures the dimensional accuracy and quality stability of each part, resulting in a stable and reliable structure and high product quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a cross-sectional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the concave template of this utility model; Figure 4 This is a three-dimensional structural diagram of the core fixing plate of this utility model; Figure 5 This is an exploded three-dimensional structural diagram of the main components of the movable core assembly of this utility model; Figure 6 This is a side view of the movable core assembly of this utility model in the assembled state; Figure 7 This is a three-dimensional structural diagram of the second movable insert of this utility model; Figure 8 This is a three-dimensional structural diagram of the component of this utility model.

[0018] In the diagram: 1. Fixed mold base plate; 2. Concave mold plate; 3. Pad block; 4. Moving mold base plate; 5. Core fixing plate; 6. Sprue sleeve; 7. Drive cylinder; 8. Movable core assembly; 9. Guide rail; 10. Part; 11. Piston rod guide sleeve; 21. Cavity; 51. Core positioning groove; 52. Guide rail mounting seat; 53. Fixing hole; 81. Fixed core; 82. First movable insert; 83. Second movable insert; 84. Guide slide. Detailed Implementation

[0019] 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. Example

[0020] refer to Figure 1-8 The illustration shows a discharge mold, comprising a fixed mold portion and a moving mold portion. The fixed mold portion includes a fixed mold base plate 1 and a cavity mold plate 2. The fixed mold base plate 1 is used to fix the mold onto the fixed mold plate of the injection molding machine. The cavity mold plate 2 is provided with a sprue sleeve 6 for injecting molten material, and as shown... Figure 3 As shown, it has a cavity 21 inside for forming the outer contour of the part 10.

[0021] The moving mold section includes a pad block 3, a moving mold base plate 4, and a core fixing plate 5. The core fixing plate 5 is the core base of the moving mold section, such as... Figure 4 As shown, it has a core positioning groove 51 for precisely positioning and fixing the core 81, and a guide rail mounting base 52 and a fixing hole 53 for mounting the guide rail 9.

[0022] The key innovation of this embodiment lies in a set of movable core assemblies 8 disposed on the core fixing plate 5. Please refer to... Figure 5 and Figure 6 The movable core assembly 8 consists of three parts: a fixed core 81, a first movable insert 82, and a second movable insert 83. The fixed core 81 is installed in the core positioning groove 51 and remains stationary during mold operation. The first movable insert 82 and the second movable insert 83 are movable parts, each equipped with a guide groove 84.

[0023] The movement of the first movable insert 82 and the second movable insert 83 is achieved by the drive cylinder 7 and the guide rail 9. The guide rail 9 is fixed on the guide rail mounting base 52 of the core fixing plate 5. The first movable insert 82 and the second movable insert 83 slide with the guide rail 9 through the guide groove 84 on it. The drive cylinder 7 is fixed outside the mold, and the piston rod of the drive cylinder 7 is provided with a piston rod guide sleeve 11 to ensure the linear movement stability of the piston rod. Its piston rod is connected to the first movable insert 82, and a mechanical snap-fit ​​structure is provided between the first movable insert 82 and the second movable insert 83 to synchronously drive the second movable insert 83 to move when the first movable insert 82 moves.

[0024] The working principle of this practical application is as follows: Mold Closure: Before injection molding, the piston rod of the drive cylinder 7 extends, pushing the first movable insert 82 and the second movable insert 83 to slide forward along the guide rail 9 until they are tightly fitted with the fixed core 81, forming a complete core for constituting the inner cavity of the part 10. Subsequently, the entire moving mold part moves towards the fixed mold part, completing the final mold closure, so that the movable core assembly 8 and the cavity 21 form a sealed mold cavity.

[0025] Injection: Molten material is injected into the sealed mold cavity through the sprue sleeve 6 and then subjected to pressure holding and cooling.

[0026] Mold opening and core pulling: After cooling and solidification, the injection molding machine drives the moving mold part to retract, separating the fixed mold from the moving mold. Subsequently, the piston rod of the drive cylinder 7 retracts, pulling the first movable insert 82 and the second movable insert 83 to slide backward along the guide rail 9, disengaging from the undercut structure inside the part 10, and completing the lateral core pulling action.

[0027] Ejection: After the core pulling is completed, the part 10, which is no longer subject to undercut interference, is ejected from the core, completing one production cycle.

[0028] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0029] Components not described in detail in this article are existing technologies.

[0030] 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 embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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 mold for a discharge port, comprising a fixed mold portion and a moving mold portion, characterized in that: The moving mold part includes a core fixing plate (5), on which a set of movable core assembly (8) is provided; the movable core assembly (8) includes a fixed core (81), a first movable insert (82) and a second movable insert (83); the mold also includes a driving mechanism (7), which is directly connected to the first movable insert (82) and is used to drive its movement.

2. The discharge port mold according to claim 1, characterized in that: A mechanical snap-fit ​​structure is provided between the first movable insert (82) and the second movable insert (83) for synchronously driving the second movable insert (83) to move when the first movable insert (82) moves.

3. The discharge port mold according to claim 1, characterized in that: The drive mechanism (7) is a drive cylinder.

4. A discharge port mold according to claim 3, characterized in that: The piston rod of the drive cylinder is provided with a piston rod guide sleeve (11) to ensure the linear motion stability of the piston rod.

5. A discharge port mold according to claim 1, characterized in that: The moving part also includes a guide rail (9) for guiding the movement of the first movable insert (82) and the second movable insert (83). The first movable insert (82) and the second movable insert (83) are each provided with a guide groove (84) that slides with the guide rail (9).

6. A discharge port mold according to claim 1, characterized in that: The core fixing plate (5) is provided with a core positioning groove (51) for installing and positioning the fixed core (81).

7. A discharge port mold according to claim 1, characterized in that: The fixed mold part includes a concave mold plate (2), and the concave mold plate (2) has a cavity (21) for cooperating with the movable core assembly (8) to form a closed mold cavity.

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