Plastic injection mold capable of quickly replacing mold core

Abstract

The utility model relates to the technical field of mold core replacement, in particular to a plastic injection mold capable of quickly replacing a mold core. The mold comprises a first mold, two rectangular holes are formed in one side of the first mold and are far away from each other, a dismounting assembly is arranged in the center of the first mold and comprises a mold core body, and clamping plates are fixedly connected to the positions, close to the two sides, of one side of the mold core body. A third extrusion plate is pushed through a telescopic air cylinder in the dismounting assembly, the third extrusion plate extrudes two second extrusion plates, so that the two second extrusion plates move oppositely, and meanwhile, the second extrusion plates drive two first extrusion plates to move oppositely; and the two first extrusion plates extrude the extrusion rectangular holes in the two clamping plates, so that the effect of fixing the mold core main body is achieved, meanwhile, the replacement efficiency of the mold core main body is improved, the time for replacing the mold core main body is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould core replacement technical field, concretely relates to a plastic injection mould of quick replacement mould core. BACKGROUND

[0002] Plastic injection molding is one of the most commonly used methods in plastic processing, and is widely used in many industries such as automobiles, electronics, household appliances and daily necessities. As the key tool of injection molding, the quality and performance of plastic injection mold directly affect the quality, production efficiency and cost of plastic products. A well-designed and high-precision injection mold can produce plastic products with accurate dimensions, good surface quality and stable performance, and can improve production efficiency and reduce production cost.

[0003] In the traditional plastic injection mold, the replacement of the mold core usually requires the use of multiple tools, and the disassembly and installation operations are complicated. The bolts fixing the mold core need to be unscrewed one by one, then the old mold core is taken out, the new mold core is accurately positioned and installed, and finally the bolts are tightened. This process often takes a lot of time, from a few hours to a whole day or even longer, which seriously affects the production efficiency. Therefore, a plastic injection mold with quick mold core replacement is proposed. SUMMARY

[0004] The utility model discloses a plastic injection mold with quick mold core replacement to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides a plastic injection mold with quick mold core replacement, which comprises a first mold, two rectangular holes are formed on one side of the first mold, the two rectangular holes are arranged away from each other, a disassembly assembly is arranged at the center position of the first mold, the disassembly assembly comprises a mold core body, a clamping plate is fixedly connected to one side of the mold core body near the two sides, an extrusion rectangular hole is formed on one side of each clamping plate, a plurality of sliding rails are fixedly connected to one side of the first mold, a first extrusion plate and a second extrusion plate are slidingly installed between the vertical two sliding rails, a U-shaped fixed plate is fixedly connected to the middle position of one side of the first mold, a telescopic cylinder is fixedly installed at the middle position of one side of the U-shaped fixed plate, and a third extrusion plate is fixedly connected to one end of the piston rod of the telescopic cylinder.

[0006] As a further improvement of the technical solution, a sliding rod is slidingly installed near the four corners of the first mold, a second mold is fixedly connected to one end of the four sliding rods, the four sliding rods limit the first mold, and an injection hole is formed at the center position of one side of the second mold. The material after melting is injected through the injection hole.

[0007] As a further improvement of the technical solution, the two clamping plates are arranged at right angles away from the two corners of the mold core body, and the two right angles on the two clamping plates play a guiding role.

[0008] As a further improvement of the technical solution, the telescopic cylinder pushes the third extrusion plate to extrude the two second extrusion plates, so that the two second extrusion plates move in opposite directions, and the two second extrusion plates drive the two first extrusion plates to move in opposite directions.

[0009] As a further improvement of the technical solution, the side inclined surface of the first extrusion plate extrudes the extrusion rectangular hole on the clamping plate, so that the two clamping plates drive the mold core body to be fixed on one side of the first mold.

[0010] As a further improvement of the technical solution, the first extrusion plate and the second extrusion plate are provided with sliding grooves on both sides, the sliding grooves on both sides of the first extrusion plate and the second extrusion plate are matched with sliding rails, and the sliding rails limit the first extrusion plate and the second extrusion plate.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] In the plastic injection mold capable of quickly replacing the mold core, the telescopic cylinder in the disassembly assembly pushes the third extrusion plate, the third extrusion plate extrudes the two second extrusion plates, the two second extrusion plates move in opposite directions, the second extrusion plates drive the two first extrusion plates to move in opposite directions, the two first extrusion plates extrude the extrusion rectangular holes on the two clamping plates, and the effect of fixing the mold core body is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is one of the overall structure schematic diagrams of the utility model;

[0014] Figure 2 It is the second overall structure schematic diagram of the utility model;

[0015] Figure 3 It is the first mold cross-sectional structure schematic diagram of the utility model;

[0016] Figure 4 It is the disassembly assembly exploded structure schematic diagram of the utility model.

[0017] The meanings of various reference numerals in the drawings are as follows:

[0018] 1, first mold; 2, sliding rod; 3, second mold; 4, disassembly assembly; 41, mold core main body; 42, clamping plate; 43, extruded rectangular hole; 44, sliding rail; 45, first extruded plate; 46, second extruded plate; 47, U-shaped fixed plate; 48, telescopic air cylinder; 49, third extruded plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] Example 1

[0022] Please refer to Figures 1-4As shown, this embodiment provides a plastic injection mold with a quick-change mold core, including a first mold 1. Two rectangular holes are opened on one side of the first mold 1, and the two rectangular holes are positioned far apart from each other. Sliding rods 2 are slidably installed near the four corners of the first mold 1. One end of each of the four sliding rods 2 is fixedly connected to a second mold 3. The four sliding rods 2 limit the movement of the first mold 1, allowing it to slide without shifting. An injection hole is opened at the center of one side of the second mold 3, through which molten material is injected, facilitating connection to the injection molding machine. A disassembly assembly 4 is provided at the center of the first mold 1. The disassembly assembly 4 includes a mold core body 41. The disassembly assembly 4 facilitates the replacement of the mold core body 41 and increases the efficiency of mold core body 41 replacement. One side of the mold 1 is fixedly connected to two snap-fit ​​plates 42 near the two sides. The two corners of the two snap-fit ​​plates 42 away from the mold core body 41 are set at right angles. The two right angles on the two snap-fit ​​plates 42 serve as guides, so that the two snap-fit ​​plates 42 on the side of the mold core body 41 can be smoothly inserted into the two rectangular holes. Each of the two snap-fit ​​plates 42 has a pressing rectangular hole 43 on the opposite side. Multiple sliding rails 44 are fixedly connected to one side of the first mold 1. A first pressing plate 45 and a second pressing plate 46 are slidably installed between two vertical sliding rails 44. Sliding grooves are provided on both sides of the first pressing plate 45 and the second pressing plate 46. The sliding grooves on both sides of the first pressing plate 45 and the second pressing plate 46 are adapted to the sliding rails 44. The sliding rails 44 limit the first pressing plate 45 and the second pressing plate 46 to prevent the first pressing plate 45 and the second pressing plate 46 from deviating during sliding.

[0023] A U-shaped fixing plate 47 is fixedly connected to the middle position of one side of the first mold 1. A telescopic cylinder 48 is fixedly installed at the middle position of one side of the U-shaped fixing plate 47. A third extrusion plate 49 is fixedly connected to one end of the piston rod of the telescopic cylinder 48. The telescopic cylinder 48 pushes the third extrusion plate 49 to extrude two second extrusion plates 46 through the piston rod, causing the two second extrusion plates 46 to move in opposite directions. The two second extrusion plates 46 drive the two first extrusion plates 45 to move in opposite directions. One side of the first extrusion plate 45 is inclined to extrude the extrusion rectangular hole 43 on the snap-fit ​​plate 42, so that the two snap-fit ​​plates 42 drive the mold core body 41 to be fixed to one side of the first mold 1, thereby achieving the effect of fixing the mold core body 41 to one side of the first mold 1.

[0024] The plastic injection mold with replaceable mold core of the embodiment, in specific use, firstly, when installing the mold core body 41, inserts two clamping plates 42 on one side of the mold core body 41 into two rectangular holes respectively, then pushes the third extrusion plate 49 on the piston rod of the telescopic cylinder 48, extrudes the two second extrusion plates 46 on the two sides of the third extrusion plate 49, moves the two second extrusion plates 46 in opposite directions, drives the two first extrusion plates 45 to move in opposite directions, extrudes the extrusion rectangular holes 43 on the two clamping plates 42, and drives the effect of fixing the mold core body 41.

[0025] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic injection mould with quick change core comprising a first mould (1), characterised in that: The first mold (1) one side is provided with two rectangular holes, two the rectangular holes are away from each other, the center position of first mold (1) is provided with dismounting assembly (4), the dismounting assembly (4) includes mold core main body (41), one side of mold core main body (41) is close to two side positions and is fixedly connected with clamping plate (42), two clamping plates (42) are provided with extrusion rectangular hole (43) on the opposite side, first mold (1) one side is fixedly connected with a plurality of sliding rails (44), the first extrusion plate (45) and the second extrusion plate (46) are slidably installed between the vertical two sliding rails (44), the first mold (1) one side intermediate position is fixedly connected with U-shaped fixed plate (47), the U-shaped fixed plate (47) one side intermediate position is fixedly installed with telescopic pneumatic cylinder (48), the piston rod one end of telescopic pneumatic cylinder (48) is fixedly connected with third extrusion plate (49).

2. A plastic injection mold with quick-change core according to claim 1, characterized in that: The first mold (1) is close to the sliding rod (2) of four corners position, four The first end of sliding rod (2) is fixedly connected with second mold (3), four The sliding rod (2) is limited to first mold (1), the second mold (3) one side center position is provided with injection hole, through the injection hole, the material after melting is injected.

3. The plastic injection mold with quick-change core in accordance with claim 1, characterized in that: Two The two corners of clamping plate (42) away from mold core main body (41) are arranged at right angles, two right angles on two clamping plates (42) play a guiding role.

4. The plastic injection mold with quick-change core in accordance with claim 1, characterized in that: The telescopic pneumatic cylinder (48) drives the third extrusion plate (49) to extrude two second extrusion plates (46) through the piston rod, so that two The second extrusion plate (46) moves in opposite directions, two The second extrusion plate (46) drives two first extrusion plate (45) to move in opposite directions.

5. The plastic injection mold with quick-change core in accordance with claim 1, characterized in that: The first extrusion plate (45) one side bevel extrudes the extrusion rectangular hole (43) on the clamping plate (42), so that two The clamping plate (42) drives the mold core main body (41) to be fixed on one side of the first mold (1).

6. The plastic injection mold with quick-change core in accordance with claim 1, characterized in that: The first extrusion plate (45) and the second extrusion plate (46) are provided with sliding grooves on both sides, the sliding grooves on both sides of the first extrusion plate (45) and the second extrusion plate (46) are matched with the sliding rails (44), and the sliding rails (44) limit the first extrusion plate (45) and the second extrusion plate (46).

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