CN219276501U

CN219276501U - Quick-dismantling injection mold

Info

Publication number: CN219276501U
Application number: CN202223297872.8U
Authority: CN
Inventors: 李凤山; 李棠明; 欧永星
Original assignee: Zhongshan Pacific Master Precision Injection Ltd
Current assignee: Zhongshan Pacific Master Precision Injection Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-06-30
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a quick-dismantling type injection mold, which comprises an upper mold assembly and a lower mold assembly, wherein the upper mold assembly is provided with an upper mold cavity, the lower mold assembly is provided with a molding block, the molding block comprises a fixed block and a movable block, one side of the fixed block of the lower mold assembly is provided with a containing through hole, the inner wall of the containing through hole is provided with a stop block, the containing through hole is provided with a plurality of corners, and the stop block is positioned between two adjacent corners of the containing through hole. According to the quick-disassembly injection mold, through the accommodating through holes which are not propped against the bottom surface of the movable block are formed in the lower mold assembly, all corners of the accommodating through holes penetrate through the accommodating through holes from bottom to top, the processing difficulty of the corners is reduced, the processing precision of the corners is improved, and therefore the assembly precision of the movable block and the accommodating through holes is improved, and the assembly precision of the movable block between all injection molding cavities is improved. Meanwhile, the stop blocks which are propped against the bottom surfaces of the movable blocks are arranged between two adjacent corners of the quick-disassembly injection mold, so that the limit of the movable blocks is realized, and the use requirement is met.

Description

Quick-dismantling injection mold

Technical Field

The utility model relates to an injection mold, in particular to a quick-dismantling type injection mold.

Background

In order to improve production efficiency, the existing injection mold is provided with a plurality of injection molding cavities, and in order to improve universality of accessories in each injection molding cavity, most of accessories in the injection molding cavities are detachable parts which can be used among the injection molding cavities in a detachable mode. The space of the removable part of the current injection mold is the sealed recess in bottom, and because the processing degree of difficulty of the crossing position of recess corner and recess tank bottom is big, can't form the right angle in the crossing position of recess corner and recess tank bottom, lead to removable part and recess unable accurate cooperation, and the error is big when leading to removable part to use between a plurality of injection molding die cavities, influences the quality of injection molding.

Disclosure of Invention

The utility model aims to solve the technical problems that the machining precision and the assembly precision are low because an assembly groove matched with a detachable part in the existing injection mold cannot form a right angle at a corner.

The utility model is realized by the following technical scheme:

the quick-disassembly injection mold comprises an upper mold component and a lower mold component, wherein the upper mold component is provided with an upper mold cavity with a downward opening, the lower mold component is provided with a molding block extending into the upper mold cavity to form an injection molding cavity in a matched mode, the molding block comprises a fixed block fixedly connected to the lower mold component and a movable block detachably connected with the lower mold component, one side of the fixed block is provided with a containing through hole for the movable block to be inserted, the inner wall of the containing through hole is provided with a stop block for limiting the movable block to move downwards, the containing through hole is provided with a plurality of corners penetrating through the containing through hole from bottom to top, the stop block is positioned between two adjacent corners of the containing through hole, and the part of the movable block positioned outside the containing through hole is matched with the fixed block to form the molding block.

Further, the inner side wall of the accommodating through hole is a plane extending downwards and upwards.

Further, each corner of the accommodating through hole is a right angle.

Further, the lower die assembly is provided with a push rod capable of moving up and down, and the push rod can move up and extend into the injection molding cavity to support the injection molding piece.

Further, the push rod penetrates through the accommodating through hole from bottom to top, one side of the push rod is coplanar with the inner wall of the accommodating through hole, and one side of the push rod coplanar with the accommodating through hole is provided with the stop block.

Further, a connecting rod which penetrates through the accommodating through hole and is detachably connected with the lower die assembly is fixedly connected to the lower end of the movable block.

Further, the connecting rod can move up and down, the fixed block is provided with a first inclined plane, and the movable block is provided with a second inclined plane which is in inclined pushing fit with the first inclined plane.

Further, a back-off part positioned above the accommodating through hole is arranged on one side of the movable block, which is opposite to the fixed block, and the back-off part is detachably connected with the movable block.

Further, a guide piece accommodated in the lower die assembly is arranged on the connecting rod in a penetrating mode, and a guide groove in sliding connection with the push rod is formed in the guide piece.

Compared with the prior art, the utility model has the following advantages:

according to the quick-disassembly injection mold, through the accommodating through holes which are not propped against the bottom surface of the movable block are formed in the lower mold assembly, all corners of the accommodating through holes penetrate through the accommodating through holes from bottom to top, the processing difficulty of the corners is reduced, the processing precision of the corners is improved, and therefore the assembly precision of the movable block and the accommodating through holes is improved, and the assembly precision of the movable block between all injection molding cavities is improved. Meanwhile, the stop blocks which are propped against the bottom surfaces of the movable blocks are arranged between two adjacent corners of the quick-disassembly injection mold, so that the limit of the movable blocks is realized, and the use requirement is met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below.

FIG. 1 is a perspective view of a quick release injection mold of the embodiment disclosed;

FIG. 2 is a perspective view of a lower die assembly in an embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a partially exploded view of the lower die assembly of the embodiment;

FIG. 5 is a partial enlarged view at B in FIG. 4;

FIG. 6 is a perspective view of a lower die assembly (hidden movable block) in an embodiment;

fig. 7 is a partial enlarged view at C in fig. 6.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: as shown in fig. 1-7, the quick-release injection mold comprises an upper mold assembly 1 and a lower mold assembly 2, the upper mold assembly 1 is provided with an upper mold cavity (not shown) with a downward opening, the lower mold assembly 2 is provided with a molding block 3 extending into the upper mold cavity to be matched with the upper mold cavity to form an injection mold cavity (not shown), the molding block 3 comprises a fixed block 31 fixedly connected to the lower mold assembly 2 and a movable block 32 detachably connected to the lower mold assembly 2, the lower mold assembly 2 is provided with a containing through hole 21 for inserting the movable block 32 on one side of the fixed block 31, the inner wall of the containing through hole 21 is provided with a stop block 22 for limiting the movable block 32 to move downwards, the containing through hole 21 is provided with a plurality of corners (not shown) penetrating through the containing through hole 21 from bottom to top, the stop block 22 is positioned between two adjacent corners of the containing through hole 21, each corner of the containing through hole 21 is a right angle, the movable block 32 is positioned at the outer part of the containing through hole 21, and the outer part of the containing through hole 21 is matched with the fixed block 31 to form the molding through hole 3.

According to the quick-disassembly injection mold, through the accommodating through holes 21 which are not propped against the bottom surface of the movable block 32 are formed in the lower mold assembly 2, all corners of the accommodating through holes 21 penetrate through the accommodating through holes 21 from bottom to top, the processing difficulty of the corners is reduced, the processing precision of the corners is improved, the assembly precision of the movable block 32 and the accommodating through holes 21 is improved, and the assembly precision of the movable block 32 between injection molding cavities is improved. Meanwhile, the stop blocks 22 which are propped against the bottom surfaces of the movable blocks 32 are arranged between two adjacent corners of the quick-disassembly injection mold, so that the movable blocks 32 are limited, and the use requirement is met.

In one embodiment, for simplicity of construction and convenience of implementation, the inner side wall of the accommodating through hole 21 is a plane extending downward and upward.

In one embodiment, to reduce the demolding difficulty, the lower mold assembly 2 has a push rod 4 which can be moved up and down, the push rod 4 being able to be moved up into the injection mold cavity to support the injection molding.

In one embodiment, for simplicity of construction and convenience of implementation, the push rod 4 penetrates through the accommodating through hole 21 from bottom to top, one side of the push rod is coplanar with the inner wall of the accommodating through hole 21, and one side of the push rod 4 coplanar with the accommodating through hole 21 is provided with the stop block 22.

In one embodiment, for simplicity of construction and ease of implementation, a portion of the fixed block 31 abutting against the movable block 32 is coplanar with the inner wall of the accommodating through hole 21.

In one embodiment, in order to improve the connection stability, the lower end of the movable block 32 is fixedly connected with a connecting rod 33 that penetrates through the accommodating through hole 21 and is detachably connected with the lower die assembly 2.

In one embodiment, for simplicity of construction and convenience of implementation, a back-fastening portion 34 located above the accommodating through hole 21 is disposed on a side of the movable block 32 opposite to the fixed block 31, the connecting rod 33 may move up and down, the fixed block 31 has a first inclined plane 35, and the movable block 32 has a second inclined plane 36 that is in inclined push fit with the first inclined plane 35.

In one embodiment, the back-off portion 34 is detachably connected to the movable block 32 for simplicity of construction and convenience of implementation.

In one embodiment, in order to improve the stability of movement, the guide 5 accommodated in the lower module 2 is inserted into the link 33, and a guide groove (not shown) slidably connected to the push rod 4 is formed in the guide 5.

It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the utility model. Furthermore, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The foregoing description of one or more embodiments provided in connection with the specific disclosure is not intended to limit the practice of the utility model to such description. Any approximation, or substitution of the technical deduction or substitution made for the technical deduction of the present utility model based on the inventive method, structure, etc. shall be considered as protection of the present utility model.

Claims

1. The quick-release injection mold comprises an upper mold assembly and a lower mold assembly, wherein the upper mold assembly is provided with an upper mold cavity with a downward opening, the lower mold assembly is provided with a molding block extending into the upper mold cavity to form an injection molding cavity in a matched mode, the molding block comprises a fixed block fixedly connected to the lower mold assembly and a movable block detachably connected with the lower mold assembly, and the quick-release injection mold is characterized in that one side of the fixed block is provided with a containing through hole for the movable block to be inserted, the inner wall of the containing through hole is provided with a stop block for limiting the movable block to move downwards, the containing through hole is provided with a plurality of corners penetrating through the containing through hole from bottom to top, the stop block is positioned between two adjacent corners of the containing through hole, and the movable block is positioned outside the containing through hole and matched with the fixed block to form the molding block.

2. The quick release injection mold of claim 1, wherein the inner side wall of the receiving through hole is a plane extending from bottom to top.

3. The quick release injection mold of claim 1, wherein each corner of the receiving through hole is a right angle.

4. The quick release injection mold of claim 1 wherein the lower mold assembly has a push rod that is movable up and down, the push rod being movable up and into the injection cavity to support an injection molded part.

5. The quick release injection mold of claim 4 wherein the push rod extends through the receiving through hole from bottom to top and has one side coplanar with an inner wall of the receiving through hole, and the stop block is provided on one side of the push rod coplanar with the receiving through hole.

6. The quick release injection mold of claim 4, wherein a connecting rod is fixedly connected to the lower end of the movable block and detachably connected to the lower mold assembly through the receiving through hole.

7. The quick release injection mold of claim 6 wherein the connecting rod is movable up and down, the fixed block has a first bevel, and the movable block has a second bevel that is a push fit with the first bevel.

8. The quick release injection mold of claim 7, wherein a back-off portion located above the receiving through hole is provided on a side of the movable block facing away from the fixed block, and the back-off portion is detachably connected with the movable block.

9. The quick release injection mold of claim 6, wherein the connecting rod is provided with a guide member which is accommodated in the lower mold assembly, and the guide member is provided with a guide groove which is connected with the push rod in a sliding manner.