Injection mold capable of quickly replacing mold core

Abstract

The utility model discloses an injection mold capable of quickly replacing a mold core, which comprises a male mold plate, a female mold plate, a male mold core and a female mold core, grooves are formed in the opposite side walls of the male mold core; the lifting assembly comprises a jacking rod, a pressing driving rod and a positioning block, a mounting cavity used for mounting the jacking rod is formed in the back face of the male mold plate, one end of the mounting cavity extends to the male mold core mounting cavity, the jacking rod is rotatably mounted in the mounting cavity, and one end of the jacking rod makes contact with the bottom face of the male mold core; an avoiding groove corresponding to the jacking rod in position is formed in the side wall of the male mold core mounting cavity, the downward pressing driving rod is arranged on the male mold plate in a penetrating mode, one end of the downward pressing driving rod is slidably connected to the jacking rod, the positioning block is rotatably mounted at the end of the downward pressing driving rod, and a containing groove used for containing the positioning block is formed in the surface of the male mold plate. Compared with the prior art, the utility model solves the problem that the core insert is inconvenient to separate from the core plate.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection mold with a mold core that can be quickly replaced. Background Art

[0002] Injection molding refers to a method in which a completely molten plastic material is stirred by a screw at a certain temperature, injected into a mold cavity with high pressure, and a molded product is obtained after cooling and solidification. For example, Chinese Patent 202211025943.0 discloses an injection mold for a center control panel, which solves the problem of the combined connection method of the injection mold for the center control panel in the prior art, which leads to the wear of the injection mold and high replacement frequency. An injection mold for a center control panel includes: a connection assembly, including a positioning member, a locking member and a clamping member, and the positioning member and the locking member are horizontally clamped and limited; a male mold plate, including a male mold core, a corresponding mold base and a sealing plate, and the outer side of the male mold core and the outer side of the mold base are horizontally clamped and limited at four corners by the clamping member. The clamping member is used to clamp the female mold core, the clamping member and the mold base at the four corners, and the horizontal limit of the positioning member and the locking member can also limit the axial position of the clamping member, so as to realize a method of using horizontal clamping to reduce the axial wear of the injection mold, and also realize the quick disassembly and assembly of the injection mold.

[0003] The male mold core on the male mold plate is detachable for easy replacement, but the male mold core is heavy and has an irregular surface, making it inconvenient to separate the male mold core from the male mold plate. Utility Model Content

[0004] The utility model aims to provide an injection mold with a mold core that can be quickly replaced, so as to solve the problem that the male mold core is inconvenient to separate from the male mold plate.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an injection mold capable of quickly replacing a mold core, comprising:

[0006] A male mold plate, on which a male mold core installation cavity is provided;

[0007] The male mold core has a groove on one of its opposite side walls;

[0008] The lifting assembly includes a lifting rod, a pressing driving rod and a positioning block. A mounting cavity for installing the lifting rod is provided on the back of the male mold plate, one end of the mounting cavity extends to the male mold core mounting cavity, the lifting rod is rotatably installed in the mounting cavity, one end of the lifting rod contacts the bottom surface of the male mold core, and an avoidance groove corresponding to the position of the lifting rod is provided on the side wall of the male mold core mounting cavity. The pressing driving rod is passed through the male mold plate, one end of the pressing driving rod is slidably connected to the lifting rod, the positioning block is rotatably installed at the end of the pressing driving rod, and a receiving groove for receiving the positioning block is provided on the surface of the male mold plate.

[0009] As a further description of the above technical solution:

[0010] A guiding inclined surface is arranged on the top of the positioning block.

[0011] As a further description of the above technical solution:

[0012] A waist-shaped hole is arranged on the jacking rod, and the pressing driving rod passes through the avoidance hole on the jacking rod and then extends into the waist-shaped hole. A connecting head is arranged at the end of the pressing driving rod, and the connecting head is slidably connected in the waist-shaped hole.

[0013] As a further description of the above technical solution:

[0014] The depth of the storage groove is greater than or equal to the height of the positioning block.

[0015] As a further description of the above technical solution:

[0016] The surface of the male template is provided with a positioning groove, and the shape of the positioning groove matches the positioning block.

[0017] As a further description of the above technical solution:

[0018] The four side walls of the male mold core are all provided with grooves.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0020] 1. In the utility model, when removing the male mold core, the positioning block rotates 90 degrees, and the positioning block is aligned with the storage groove on the male mold plate. Then, the positioning blocks on both sides of the male mold core are pressed downward synchronously, and the driving rod is pressed downward and the lifting rod is pressed to rotate, and one end of the lifting rod lifts the male mold core upward. When the positioning block is completely pressed into the storage groove, the male mold core is lifted up to the highest point, and the groove on the side of the male mold core is exposed on the surface of the male mold plate. Then, the male mold core can be carried by using the groove, which is convenient for separating the male mold core from the male mold plate.

[0021] 2. In the utility model, a positioning groove is provided on the surface of the male mold plate, and the shape of the positioning groove matches the positioning block. Under normal conditions, the positioning block is placed in the positioning groove to prevent the positioning block from rotating and shifting. When the male mold core needs to be disassembled, first stretch the positioning block upward to disengage it from the positioning groove, then rotate the positioning block 90 degrees to align it with the storage groove on the male mold plate, and then press down the positioning block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The figure is a schematic diagram of the structure of an injection mold with a mold core that can be quickly replaced.

[0024] Figure 2 The present invention is a schematic diagram of the structure of a lifting component in an injection mold that can quickly replace the mold core.

[0025] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0026] Figure 4 Schematic diagram of the state change of the lifting component in an injection mold that can quickly replace the mold core Figure 1 .

[0027] Figure 5 Schematic diagram of the state change of the lifting component in an injection mold that can quickly replace the mold core Figure 2 .

[0028] Legend:

[0029] 1. Male mold plate; 11. Male mold core installation cavity; 111. Avoidance groove; 12. Installation cavity; 13. Storage groove; 14. Positioning groove; 2. Male mold core; 21. Groove; 3. Lifting assembly; 31. Lifting rod; 311. Waist-shaped hole; 312. Avoidance hole; 32. Press-down drive rod; 321. Connector; 33. Positioning block; 331. Guide slope. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example 1

[0032] See also Figure 1-5 The utility model provides a technical solution: an injection mold capable of quickly replacing a mold core, comprising:

[0033] A male mold plate 1, on which a male mold core installation cavity 11 is provided;

[0034] The male mold core 2 has a groove 21 on one of its opposite side walls;

[0035] The lifting assembly 3 includes a lifting rod 31, a pressing drive rod 32 and a positioning block 33. A mounting cavity 12 for mounting the lifting rod 31 is provided on the back of the male mold plate 1. One end of the mounting cavity 12 extends to the male mold core mounting cavity 11. The lifting rod 31 is rotatably installed in the mounting cavity 12. One end of the lifting rod 31 contacts the bottom surface of the male mold core 2. An avoidance groove 111 corresponding to the position of the lifting rod 31 is provided on the side wall of the male mold core mounting cavity 11. The pressing drive rod 32 is penetrated by the male mold plate 1. One end of the pressing drive rod 32 is slidably connected to the lifting rod 31. The positioning block 33 is rotatably installed at the end of the pressing drive rod 32. The surface of the male mold plate 1 is provided with a receiving groove 13 for receiving the positioning block 33.

[0036] A guiding inclined surface 331 is provided on the top of the positioning block 33 to prevent the positioning block 33 from colliding and being damaged with the mother mold plate when the mold is closed.

[0037] A waist-shaped hole 311 is provided on the lifting rod 31, and the pressing driving rod 32 passes through the avoidance hole 312 on the lifting rod 31 and then extends into the waist-shaped hole 311. A connecting head 321 is provided at the end of the pressing driving rod 32, and the connecting head 321 is slidably connected in the waist-shaped hole 311 to realize the sliding connection between the pressing driving rod 32 and the lifting rod 31.

[0038] The depth of the receiving groove 13 is greater than or equal to the height of the positioning block 33 .

[0039] The surface of the male mold plate 1 is provided with a positioning groove 14, and the shape of the positioning groove 14 matches the positioning block 33. Under normal conditions, the positioning block 33 is placed in the positioning groove 14 to prevent the positioning block 33 from rotating or shifting. When the male mold core 2 needs to be disassembled, the positioning block 33 is first pulled upward to disengage the positioning groove 14, and then the positioning block 33 is rotated 90 degrees to align with the receiving groove 13 on the male mold plate 1, and then the positioning block 33 is pressed down.

[0040] The four side walls of the male mold core 2 are all provided with grooves 21 , which further facilitates the carrying of the male mold core 2 .

[0041] Working principle: Two sets of lifting components 3 are arranged on the male mold plate 1, and the two sets of lifting components 3 are symmetrically arranged on both sides of the male mold core 2. Under normal conditions, the back of the positioning block 33 contacts the surface of the male mold plate 1, and the female mold plate is provided with a recessed portion corresponding to the positioning block 33, which is inserted and positioned with the positioning block 33 during mold closing to improve the mold closing quality.

[0042] When removing the male mold core 2, the positioning block 33 rotates 90 degrees, and the positioning block 33 is aligned with the receiving groove 13 on the male mold plate 1. Then, the positioning blocks 33 on both sides of the male mold core 2 are pressed downward synchronously, and the driving rod 32 is pressed downward and the lifting rod 31 is pressed to rotate, and one end of the lifting rod 31 lifts the male mold core 2 upward. When the positioning block 33 is completely pressed into the receiving groove 13, the male mold core 2 is lifted upward to the highest point, and the groove 21 on the side of the male mold core 2 is exposed on the surface of the male mold plate 1. Then, the groove 21 can be used to carry the male mold core 2, so that the male mold core 2 can be separated from the male mold plate 1.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold with a mold core that can be quickly replaced, characterized in that: include: A male mold plate, on which a male mold core installation cavity is provided; The male mold core has a groove on one of its opposite side walls; The lifting assembly includes a lifting rod, a pressing driving rod and a positioning block. The back side of the male mold plate is provided with a mounting cavity for installing the lifting rod, one end of the mounting cavity extends to the male mold core mounting cavity, the lifting rod is rotatably installed in the mounting cavity, one end of the lifting rod contacts the bottom surface of the male mold core, and the side wall of the male mold core mounting cavity is provided with an avoidance groove corresponding to the position of the lifting rod. The pressing driving rod is penetrated by the male mold plate, one end of the pressing driving rod is slidably connected to the lifting rod, the positioning block is rotatably installed on the end of the pressing driving rod, and the surface of the male mold plate is provided with a receiving groove for receiving the positioning block.

2. The injection mold with a quick-change mold core according to claim 1, characterized in that: A guiding inclined surface is arranged on the top of the positioning block.

3. The injection mold with a quick-change mold core according to claim 1, characterized in that: A waist-shaped hole is arranged on the lifting rod, and the pressing driving rod extends into the waist-shaped hole after passing through the avoidance hole on the lifting rod. A connecting head is arranged at the end of the pressing driving rod, and the connecting head is slidably connected in the waist-shaped hole.

4. The injection mold with a quick-change mold core according to claim 1, characterized in that: The depth of the receiving groove is greater than or equal to the height of the positioning block.

5. The injection mold with a quick-change mold core according to claim 1, characterized in that: The surface of the male template is provided with a positioning groove, and the shape of the positioning groove matches the positioning block.

6. The injection mold with a quick-change mold core according to claim 1, characterized in that: The grooves are arranged on the four side walls of the male mold core.

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