Injection mold convenient to assemble

Abstract

The injection mold convenient to assemble comprises a base, a lower mold body, an upper mold body, a left mold core and a right mold core, a mold cavity is formed in the middle of the top end of the lower mold body, connecting openings are formed in the two sides of the upper mold body, clamping grooves are formed in the front portions and the rear portions of the connecting openings, bosses are arranged on the tops of the left mold core and the right mold core, and the left mold core and the right mold core are connected through the bosses. The front portion and the rear portion of the boss are each provided with a clamping strip, an upper mold core is arranged in the middle of the bottom end face of the upper mold, chamfers are arranged on the inner walls of the two sides of the mold cavity in a manner of inclining towards the middle of the mold cavity, chamfers are arranged on the outer side walls of the bottoms of the left mold core and the right mold core in a manner of inclining towards the inner sides, and positioning grooves are formed in the front portion and the rear portion of the top end face of the lower mold. Positioning blocks are arranged on the front portion and the rear portion of the bottom end face of the upper die. When the injection mold is assembled, the mold core does not need to be fixed by a bolt, so that the mold core is convenient to replace, the assembling efficiency is improved, and the assembling cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and specifically to an injection mold that is easy to assemble. Background Technology

[0002] Injection molds are tools used to produce plastic products, playing a crucial role in the injection molding process. This process involves injecting molten plastic into a mold cavity under high pressure using an injection molding machine, followed by cooling and solidification to obtain the final product. Injection molds are mainly divided into thermosetting plastic molds and thermoplastic plastic molds. Based on the molding process, they can be further subdivided into transfer molds, blow molds, casting molds, thermoforming molds, hot compression molds (compression molds), and injection molds. Injection molds can also be classified into cold runner molds and hot runner molds according to their gating systems.

[0003] Existing injection molds often require a large number of bolts to fix the upper mold, lower mold and mold core during assembly, which makes the assembly process cumbersome and inconvenient, and results in high assembly costs. Utility Model Content

[0004] The present invention provides an injection mold that is easy to assemble, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An easy-to-assemble injection mold includes a base, a lower mold, an upper mold, a left mold core, and a right mold core. The lower mold has a cavity at the center of its top end. The upper mold has connection ports on both sides, with slots at the front and rear of each connection port. The left and right mold cores each have a boss at their top, with retaining strips at the front and rear of each boss. The upper mold core is located at the center of the bottom end face of the upper mold. The inner walls on both sides of the cavity are chamfered towards the center of the cavity. The outer walls at the bottom of the left and right mold cores are chamfered inwards. The lower mold has positioning grooves at the front and rear of its top end face, and the upper mold has positioning blocks at the front and rear of its bottom end face.

[0007] Preferably, the top surface of the upper mold extends to the bottom surface and has several vent holes.

[0008] Preferably, the boss is embedded in the connection port, the card strip is embedded in the card slot, and the positioning block is embedded in the positioning groove.

[0009] Preferably, the outer walls of the left mold core and the right mold core are respectively attached to the inner walls of the two sides of the mold cavity.

[0010] Beneficial effects

[0011] The above-mentioned technical solutions in the easily assembled injection mold provided by this utility model embodiment have at least one of the following technical effects:

[0012] Through the above technical solution, the left and right mold cores are installed and fixed to the upper mold using a snap-fit ​​structure. This eliminates the need for a large number of bolts during injection mold assembly, making it easier to assemble and replace the left and right mold cores. This not only increases assembly efficiency but also reduces assembly costs. Furthermore, by providing chamfered structures on both sides of the mold cavity and the outer walls of the left and right mold cores, the left and right mold cores are clamped inwards by the chamfered structures, preventing them from expanding to the sides during injection, thus resulting in higher injection precision. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the lower mold structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the upper mold structure of this utility model;

[0017] The correspondence between the labels and component names in the attached figures is as follows:

[0018] 1. Base; 2. Lower mold; 3. Upper mold; 4. Left mold core; 5. Right mold core; 6. Mold cavity; 7. Connecting port; 8. Slot; 9. Boss; 10. Locking strip; 11. Upper mold core; 12. Positioning slot; 13. Positioning block; 14. Vent hole. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1-4 As shown, it is a structural schematic diagram of an injection mold that is easy to assemble according to a preferred embodiment of the present invention;

[0023] In this embodiment, the system includes a base 1, a lower mold 2, an upper mold 3, a left mold core 4, and a right mold core 5. The lower mold 2 has a cavity 6 at its top center. The upper mold 3 has connection ports 7 on both sides, each with a slot 8 at the front and rear. The two connection ports 7 are symmetrical. The left mold core 4 and the right mold core 5 each have a boss 9 at their top, with a retaining strip 10 at the front and rear. The left mold core 4 and the right mold core 5 are symmetrical. The upper mold 3... The upper mold core 11 is integrally provided in the middle of the bottom end face. The inner walls on both sides of the mold cavity 6 are inclined towards the middle of the mold cavity 6 and have chamfers. The outer bottom walls of the left mold core 4 and the right mold core 5 are inclined inward and have chamfers. The front and rear parts of the top surface of the lower mold 2 are provided with positioning grooves 12. The front and rear parts of the bottom end face of the upper mold 3 are provided with positioning blocks 13. The positioning blocks 13 and the positioning grooves 12 cooperate to play a positioning role, making it more convenient to assemble the upper mold 2 and the lower mold 3.

[0024] In this embodiment, the top surface of the upper mold 3 extends through to the bottom surface and is provided with a plurality of vent holes 14, through which excess air is discharged during injection molding.

[0025] In this embodiment, the boss 9 is snapped into the connection port 7, the clip 10 is snapped into the slot 8, and the positioning block 13 is snapped into the positioning groove 12. The snap-fit ​​structure eliminates the need for a large number of bolts during assembly, making assembly easier and reducing assembly costs.

[0026] In this embodiment, the outer walls of the left mold core 4 and the right mold core 5 are respectively attached to the inner walls of both sides of the mold cavity 6. This structure makes the installation of the left mold core 4 and the right mold core 5 with the mold cavity 6 more compact.

[0027] The present invention provides an easy-to-assemble injection mold. Its installation method, connection method, or setting method are all common mechanical methods. As long as it can achieve its beneficial effect, it can be implemented.

[0028] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.

[0029] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An injection mold that is easy to assemble, comprising a base (1), a lower mold (2), an upper mold (3), a left mold core (4), and a right mold core (5), characterized in that: A mold cavity (6) is provided in the middle of the top of the lower mold (2), connecting ports (7) are provided on both sides of the upper mold (3), and the front and rear parts of the connecting ports (7) are provided with clamping grooves (8), the tops of the left mold core (4) and the right mold core (5) are provided with bosses (9), and the front and rear parts of the bosses (9) are provided with clamping strips (10), an upper mold core (11) is provided in the middle of the bottom end surface of the upper mold (3), the inner walls on both sides of the mold cavity (6) are inclined toward the middle of the mold cavity (6) and chamfered, the outer side walls of the bottom of the left mold core (4) and the right mold core (5) are inclined inwardly and chamfered, the front and rear parts of the top end surface of the lower mold (2) are provided with positioning grooves (12), and the front and rear parts of the bottom end surface of the upper mold (3) are provided with positioning blocks (13).

2. The injection mold that is easy to assemble according to claim 1, characterized in that: The top end surface of the upper mold (3) is provided with a plurality of exhaust holes (14) extending from the bottom end surface.

3. The injection mold that is easy to assemble according to claim 1, characterized in that: The boss (9) is embedded in the connection port (7), the clamping strip (10) is embedded in the clamping slot (8), and the positioning block (13) is embedded in the positioning slot (12).

4. The easy-to-assemble injection mold according to claim 1, characterized in that: The outer side walls of the left mold core (4) and the right mold core (5) are respectively fitted with the inner side walls of the mold cavity (6).

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