A plastic injection mold

Abstract

The utility model relates to a kind of plastic injection mould, belong to injection mould field, including mould frame body, the front side of mould frame body is attached and is provided with mould body;Fixed assembly, slidingly set in the outer surface of mould frame body, for clamping and fixing to mould body;Control component, rotationally set in the inside of mould frame body, for controlling the movement of fixed assembly, by rotating the worm in control component can drive the synchronous movement of four plug-in plates in fixed assembly, make plug-in plate insert into the inside of slot or from the inside of slot, to realize the quick replacement of mould body, easy to operate, reduce the time of replacement consumption, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a plastic injection mold. Background Technology

[0002] Injection molds, as core equipment in the industrial production of plastic products, directly determine the molding precision, production efficiency, and quality stability of the finished products. In the specific workflow, the mold undergoes a series of processes, including receiving molten plastic, shaping it in the cavity, and cooling and solidifying it, ultimately producing various plastic products that meet design requirements. Leveraging its significant advantages such as high production efficiency, short molding cycle, and high degree of automation, injection molding technology has deeply penetrated many key sectors of the national economy, including electronics, automotive parts, medical devices, and daily necessities, becoming an indispensable and important component of modern manufacturing.

[0003] As consumer demand for personalized and diversified products continues to upgrade, injection molding manufacturers need to frequently change molds to adapt to the production of plastic parts with different specifications and structures. Against this backdrop, the ability to quickly change molds has become a key factor affecting the flexibility of production lines and overall production efficiency.

[0004] However, the mold installation method commonly used in the industry has significant limitations, relying on multiple bolts to rigidly fasten the mold to the mold frame. While this method can ensure installation stability to some extent during production, it exposes serious problems during mold replacement: operators must disassemble the fixing bolts on the old mold one by one, and then tighten them one by one after aligning the new mold. This is not only cumbersome, but also requires repeated adjustment of tool angles during disassembly and assembly because some bolts are located in the gaps between the mold frame and surrounding components. As a result, a single mold replacement operation often takes tens of minutes or even hours.

[0005] This inefficient mold-changing process directly leads to excessive downtime on the production line, severely restricting equipment utilization and production efficiency. This problem is particularly pronounced in multi-variety, small-batch production models, becoming a major technical bottleneck hindering injection molding companies from reducing costs, increasing efficiency, and rapidly responding to market demands. Therefore, developing a new injection mold installation structure that simplifies the mold-changing process and shortens changeover time has significant practical and industrial value. Utility Model Content

[0006] To overcome the technical defects of the existing technology, this utility model provides a plastic injection mold.

[0007] The technical solution adopted in this utility model includes: A mold frame body, wherein a mold body is fitted to the front side of the mold frame body; The fixing component is slidably disposed on the outer surface of the mold frame body and is used to clamp and fix the mold body; The control component is rotatably located inside the mold frame body and is used to control the movement of the fixed component.

[0008] Preferably, the fixing component includes: The mold frame is provided with four fixed frames. The outer surface of the mold frame body is provided with four first movable slots. The four fixed frames are slidably arranged inside the four first movable slots. The synchronous sliding of the four fixed frames inside the four first movable slots facilitates the clamping and fixing of the mold body. The mold body has four insert plates, and each of the four fixing frames has a second movable groove on its outer surface. The mold body has four slots on its outer surface. The four insert plates are slidably disposed inside the four second movable grooves and slots. The insert plates are inserted into the slots to achieve stable fixation of the mold body.

[0009] Preferably, the outer surface of the insert plate is rotatably connected to a first threaded rod, which is threadedly connected to the fixing frame. One end of the first threaded rod is fixedly connected to a knob. Rotating the knob drives the first threaded rod to rotate. The rotation of the first threaded rod can drive the insert plate to slide inside the second movable groove, thereby improving the adaptability of the device and enabling the fixing of mold bodies of different sizes.

[0010] Preferably, two limiting rods are fixedly connected to the inner surface of the first movable groove, and the fixed frame is slidably connected to the limiting rods. The setting of the limiting rods improves the sliding stability of the fixed frame.

[0011] Preferably, the control component includes: The rotating shaft has a first mounting groove inside the mold frame body. The rotating shaft is slidably disposed inside the first mounting groove. One end of the rotating shaft is fixedly connected to a first bevel gear. Four second bevel gears are meshed on the outer surface of the first bevel gear. During the rotation of the rotating shaft, the first bevel gear is driven to rotate, and the rotation of the first bevel gear drives the four second bevel gears to rotate. The second threaded rods are rotatably arranged on the inner surface of the first mounting groove. The four second threaded rods are respectively fixedly connected to the four second bevel gears and respectively threadedly connected to the four fixed brackets. During the rotation of the second bevel gears, the second threaded rods are driven to rotate synchronously. The rotation of the four second threaded rods drives the four fixed brackets to slide inside the first movable groove, thereby driving the insert plate to move synchronously and realizing the clamping function of the mold body.

[0012] Preferably, a second mounting groove is provided inside the mold frame body on one side of the first mounting groove. One end of the rotating shaft extends into the interior of the second mounting groove and is fixedly connected to a worm gear. A worm is rotatably connected to the inner surface of the second mounting groove. The worm gear and the worm are meshed together. Rotating the worm can drive the worm gear and the rotating shaft to rotate. At the same time, the stability of the fixation can be improved by the worm gear and the worm.

[0013] The beneficial effects of this utility model are: By rotating the worm gear in the control assembly, the four insert plates in the fixed assembly can be moved synchronously, allowing the insert plates to be inserted into or detached from the slots, thus enabling quick replacement of the mold body. The operation is simple, reduces replacement time, and improves production efficiency. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention.

[0015] Figure 2 This is a side sectional view of the mold frame body in this utility model.

[0016] Figure 3 This is a front cross-sectional view of the mold frame body in this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the fixing frame in this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Mold frame body; 11. Mold body; 2. First movable slot; 21. Fixed frame; 22. Second movable slot; 23. Insert plate; 24. Slot; 25. First threaded rod; 26. Knob; 27. Limiting rod; 3. First mounting slot; 31. Rotating shaft; 32. First bevel gear; 33. Second bevel gear; 34. Second threaded rod; 4. Second mounting slot; 41. Worm gear; 42. Worm. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings: As shown in the figure, this embodiment provides a plastic injection mold, including: Mold frame body 1, with mold body 11 attached to the front side of mold frame body 1; A fixing component is slidably disposed on the outer surface of the mold frame body 1 for clamping and fixing the mold body 11; The control component is rotatably located inside the mold frame body 1 and is used to control the movement of the fixed component.

[0020] Preferably, the fixing components include: The mold frame 11 is clamped and fixed by means of four fixed frames 21. The outer surface of the mold frame body 1 is provided with four first movable grooves 2. The four fixed frames 21 are slidably arranged inside the four first movable grooves 2 respectively. The synchronous sliding of the four fixed frames 21 inside the four first movable grooves 2 facilitates the clamping and fixing of the mold body 11. There are four insert plates 23. The outer surface of each of the four fixing brackets 21 is provided with a second movable groove 22. The outer surface of the mold body 11 is provided with four slots 24. The four insert plates 23 are slidably arranged inside the four second movable grooves 22 and slots 24 respectively. The insert plates 23 are inserted into the slots 24 to achieve stable fixation of the mold body 11.

[0021] Preferably, the outer surface of the insert plate 23 is rotatably connected to a first threaded rod 25, which is threadedly connected to the fixing frame 21. One end of the first threaded rod 25 is fixedly connected to a knob 26. Rotating the knob 26 drives the first threaded rod 25 to rotate. The rotation of the first threaded rod 25 can drive the insert plate 23 to slide inside the second movable groove 22, thereby improving the adaptability of the device and enabling it to fix mold bodies 11 of different sizes.

[0022] Preferably, two limiting rods 27 are fixedly connected to the inner surface of the first movable groove 2, and the fixed frame 21 is slidably connected to the limiting rods 27. The setting of the limiting rods 27 improves the sliding stability of the fixed frame 21.

[0023] Preferably, the control component includes: The rotating shaft 31 has a first mounting groove 3 inside the mold frame body 1. The rotating shaft 31 is slidably disposed inside the first mounting groove 3. One end of the rotating shaft 31 is fixedly connected to a first bevel gear 32. Four second bevel gears 33 are meshed on the outer surface of the first bevel gear 32. During the rotation of the rotating shaft 31, the first bevel gear 32 is driven to rotate, and the rotation of the first bevel gear 32 drives the four second bevel gears 33 to rotate. Four second threaded rods 34 are rotatably arranged on the inner surface of the first mounting groove 3. The four second threaded rods 34 are respectively fixedly connected to four second bevel gears 33 and respectively threadedly connected to four fixed brackets 21. During the rotation of the second bevel gears 33, the second threaded rods 34 are driven to rotate synchronously. The rotation of the four second threaded rods 34 drives the four fixed brackets 21 to slide inside the first movable groove 2, thereby driving the insert plate 23 to move synchronously and realize the clamping function of the mold body 11.

[0024] Preferably, a second mounting groove 4 is provided inside the mold frame body 1 on one side of the first mounting groove 3. One end of the rotating shaft 31 extends into the interior of the second mounting groove 4 and is fixedly connected to a worm gear 41. A worm 42 is rotatably connected to the inner surface of the second mounting groove 4. The worm gear 41 and the worm 42 are meshed together. Rotating the worm 42 can drive the worm gear 41 and the rotating shaft 31 to rotate. At the same time, the stability of the fixation can be improved by the worm gear 41 and the worm 42.

[0025] During use, rotating the knob 26 causes the first threaded rod 25 to rotate, thereby causing the insert plate 23 to slide inside the second movable groove 22. By adjusting the position of the four insert plates 23, the equipment can fix mold bodies 11 of different sizes. When fixing is required, the mold body 11 is placed at the center of the front side of the mold frame body 1. Then, rotating the worm gear 42 causes the worm wheel 41 and the rotating shaft 31 to rotate. During the rotation of the rotating shaft 31, the first bevel gear 32 rotates. The rotation of the first bevel gear 32 causes the four second bevel gears 33 and the second threaded rod 34 to rotate. The rotation of the four second threaded rods 34 causes the four fixing brackets 21 to slide inside the first movable groove 2, thereby causing the insert plates 23 to move synchronously, so that the insert plates 23 are inserted into or disengaged from the slot 24, thereby realizing the quick replacement of the mold body 11.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of the invention. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A plastic injection mold, characterized in that, include: The mold frame body (1) has a mold body (11) attached to its front side. The fixing component is slidably disposed on the outer surface of the mold frame body (1) for clamping and fixing the mold body (11); The control component is rotatably located inside the mold frame body (1) and is used to control the movement of the fixed component.

2. A plastic injection mold according to claim 1, characterized in that: The fixing component includes: The fixing frame (21) is provided in four parts. The outer surface of the mold frame body (1) is provided with four first movable grooves (2). The four fixing frames (21) are respectively slidably arranged inside the four first movable grooves (2). Insert plate (23), four insert plates (23) are provided, and the outer surface of the four fixing brackets (21) is provided with a second movable groove (22). The outer surface of the mold body (11) is provided with four slots (24). The four insert plates (23) are respectively slidably arranged inside the four second movable grooves (22) and slots (24).

3. A plastic injection mold according to claim 2, characterized in that: The outer surface of the insert plate (23) is rotatably connected to a first threaded rod (25), which is threadedly connected to the fixing frame (21). A knob (26) is fixedly connected to one end of the first threaded rod (25).

4. A plastic injection mold according to claim 2, characterized in that: Two limiting rods (27) are fixedly connected to the inner surface of the first movable groove (2), and the fixed frame (21) is slidably connected to the limiting rods (27).

5. A plastic injection mold according to claim 2, characterized in that: The control component includes: Rotating shaft (31), the mold frame body (1) has a first mounting groove (3) inside, the rotating shaft (31) is slidably disposed inside the first mounting groove (3), one end of the rotating shaft (31) is fixedly connected to a first bevel gear (32), and four second bevel gears (33) are meshed on the outer surface of the first bevel gear (32). The second threaded rod (34) is rotatably arranged on the inner surface of the first mounting groove (3). The four second threaded rods (34) are respectively fixedly connected to the four second bevel gears (33) and respectively threadedly connected to the four fixing brackets (21).

6. A plastic injection mold according to claim 5, characterized in that: The mold frame body (1) has a second mounting groove (4) on one side of the first mounting groove (3). One end of the rotating shaft (31) extends into the interior of the second mounting groove (4) and is fixedly connected to a worm gear (41). A worm (42) is rotatably connected to the inner surface of the second mounting groove (4). The worm gear (41) and the worm (42) are meshed together.

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