CN215550422U

CN215550422U - Injection mold convenient to replace

Info

Publication number: CN215550422U
Application number: CN202121422871.4U
Authority: CN
Inventors: 朱连香
Original assignee: Dongguan Dongfang Mould Co ltd
Current assignee: Dongguan Dongfang Mould Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-01-18
Anticipated expiration: 2031-06-24

Abstract

The utility model relates to an injection mold convenient to replace, which comprises: the lower die assembly comprises a lower die plate, a lower die core main body and a quick-release block; the middle part of the lower die core main body is provided with two lower concave positions, and one side of the lower die core main body corresponding to each lower concave position is provided with a slot; one end of the quick-release block penetrates through the slot and then extends into the concave position, and the quick-release block is matched with the lower die core main body to form a lower die core; the upper die assembly comprises an upper die plate and an upper die core; the upper die core is used for abutting against the lower die core main body and the quick-release block; the middle part of the upper die core is provided with two upper concave positions; go up the space between the one end of concave position, concave position and quick detach piece down and form the chamber of moulding plastics, through changing the difference quick detach piece can change the inside profile in chamber of moulding plastics. Above-mentioned injection mold convenient to replacement, simple structure, convenient to use through changing quick detach piece, can realize the replacement of lower mould benevolence fast and change the inside profile in injection molding chamber, simplifies the replacement technology, effectively improves production efficiency, reduction in production cost.

Description

Injection mold convenient to replace

Technical Field

The utility model relates to the technical field of injection molding processing, in particular to an injection mold convenient to replace.

Background

A mold is a tool used to form a product, the tool having various parts, and different molds being formed of different parts. The processing of the product appearance is realized mainly through the change of the physical state of the formed material. The plastic product with specific shape and size is made from engineering plastics, rubber and ceramics through compression molding or injection molding.

When a plurality of products with similar shapes are produced by injection molding, a plurality of corresponding molds need to be prepared, the mold opening cost is high, and in addition, different molds need to be disassembled and assembled on the injection molding machine in the production process, so that the process is complicated, time and labor are wasted, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

Based on the structure, the injection mold convenient to replace is simple in structure and convenient to use, can quickly replace the mold core, simplifies the process, effectively improves the production efficiency and reduces the production cost.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

an injection mold facilitating replacement comprising:

the lower die assembly comprises a lower die plate, a lower die core main body and quick disassembly blocks, wherein the lower die core main body is detachably arranged on the top of the lower die plate, and the quick disassembly blocks are detachably connected to two opposite ends of the top of the lower die plate; the middle part of the lower die core main body is provided with two concave positions, one side of the lower die core main body corresponding to each concave position is provided with a slot, one end of each slot is communicated with the corresponding concave position, and the other end of each slot extends to the outside of the lower die core main body; one end of the quick-release block penetrates through the slot and then extends into the lower concave position, and the quick-release block is matched with the lower die core main body to form a lower die core; and

the upper die assembly is used for matching and abutting against the top of the lower die assembly; the upper die assembly comprises an upper die plate and an upper die core which is detachably arranged at the bottom of the upper die plate; the upper die core is used for abutting against the lower die core main body and the quick-release block; the middle part of the upper die core is provided with two upper concave positions, and the upper concave positions correspond to the lower concave positions one by one; the injection molding cavity is formed by gaps among the upper concave position, the lower concave position and one end of the quick-release block, and the inner contour of the injection molding cavity can be changed by replacing different quick-release blocks.

Above-mentioned injection mold convenient to replacement, simple structure, convenient to use through changing quick detach piece, can realize the replacement of lower mould benevolence fast and change the inside profile in injection molding chamber, simplifies the replacement technology, effectively improves production efficiency, reduction in production cost.

In one embodiment, the quick-release block comprises a sliding part and an inserting part connected to one side of the sliding part; the sliding part is used for being connected with the lower template in a sliding mode, and the inserting part penetrates through the slot and then extends into the lower concave position.

In one embodiment, two quick-release guide bars arranged at intervals are respectively connected to two opposite ends of the lower template corresponding to the lower die core main body; and a sliding groove is formed between the two quick-release guide strips at the same end of the lower template and is used for the sliding part to slide and penetrate so as to realize the sliding connection of the lower template and the quick-release block.

In one embodiment, a first matching surface is arranged on one side, facing away from the lower template main body, of the sliding part; and a second matching surface is arranged on one side of the quick-release positioning hole, which faces away from the upper die core, and is used for matching and abutting against the first matching surface.

In one embodiment, the replacement-facilitating injection mold further comprises a demolding assembly mounted at the bottom of the lower mold assembly; the demolding assembly comprises a bearing seat connected to the bottom of the lower template, a driving plate movably arranged between the bearing seat and the lower template, a plurality of ejector rods connected to the top surface of the driving plate, a plurality of springs connected between the driving plate and the lower template, and guide rods connected to two opposite ends of the driving plate; the guide rod is used for slidably penetrating the lower template.

In one embodiment, the lower template is provided with a plurality of first through holes; a plurality of second through holes are formed in the lower die core main body corresponding to the lower concave positions, and the second through holes correspond to the first through holes one to one; the ejector rod is used for penetrating through the first through hole and the second through hole and then protrudes and extends out of the top surface of the lower mold core main body.

Drawings

FIG. 1 is a perspective view of an injection mold that facilitates replacement according to one embodiment of the present invention;

FIG. 2 is an exploded view of the injection mold of FIG. 1 shown ready for replacement;

FIG. 3 is a perspective view of a lower mold assembly of the injection mold shown in FIG. 2 that facilitates replacement;

FIG. 4 is a perspective view of a lower core body of the injection mold shown in FIG. 2 that facilitates replacement;

FIG. 5 is a perspective view of the upper mold assembly of the injection mold shown in FIG. 2 to facilitate replacement;

FIG. 6 is a cross-sectional view of the injection mold shown in FIG. 1 to facilitate replacement;

fig. 7 is an enlarged schematic view of the circle a shown in fig. 6.

Reference is made to the accompanying drawings in which:

10-a lower die assembly, 11-a lower die plate, 110-a containing cavity, 12-a lower die core main body, 120-a lower concave position, 13-a quick-release block, 131-a sliding part, 132-a plug part, 133-a first matching surface, 14-a limiting column, 15-a guide column, 16-a slot, 17-a quick-release guide strip, 170-a sliding groove, 18-a side plug block, 180-a pin part and 19-a side plug guide strip;

20-an upper die assembly, 21-an upper die plate, 22-an upper die core, 220-an upper concave position, 23-an injection molding hole, 24-a guide hole, 25-a quick-release positioning hole, 250-a second matching surface, 26-an injection molding cavity and 27-a side insertion positioning hole;

30-demoulding component, 31-bearing seat, 32-driving plate, 33-ejector rod and 34-guide rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 7, an injection mold for easy replacement according to an embodiment of the present invention includes a lower mold assembly 10, an upper mold assembly 20 for matching and abutting against a top of the lower mold assembly 10, and a mold release assembly 30 installed at a bottom of the lower mold assembly 10.

The lower die assembly 10 comprises a lower die plate 11, a lower die core main body 12 detachably mounted on the top of the lower die plate 11, quick-release blocks 13 detachably connected to two opposite ends of the top of the lower die plate 11, limiting columns 14 fixedly connected to two opposite ends of the top of the lower die plate 11, and guide columns 15 connected to four opposite corners of the top of the lower die plate 11. One end of the quick-release block 13 is inserted into the lower mold core main body 12, and the quick-release block 13 is matched with the lower mold core main body 12 to form a lower mold core. The middle part of the lower template 11 is provided with an accommodating cavity 110, and the accommodating cavity 110 is used for accommodating and installing the lower die core main body 12. A plurality of first through holes are formed in the lower template 11 corresponding to the interior of the accommodating cavity 110.

As shown in fig. 2 to 4, two lower concave portions 120 are formed in the middle of the lower mold core main body 12, and a plurality of second through holes are formed in the lower mold core main body 12 corresponding to the lower concave portions 120, and the second through holes correspond to the first through holes one to one. One side of the lower die core main body 12 corresponding to each undercut 120 is provided with a slot 16, one end of the slot 16 is communicated with the undercut 120, and the other end of the slot 16 extends to the outside of the lower die core main body 12; the slot 16 is used for inserting one end of the quick release block 13. Specifically, the quick release block 13 includes a sliding portion 131 substantially shaped like a Chinese character 'tu', and an insertion portion 132 connected to one side of the sliding portion 131. The sliding part 131 is used for slidably connecting the lower template 11, and the inserting part 132 penetrates through the slot 16 and then extends into the concave part 120 to adapt to the shape of the product. Wherein, one side of the sliding part 131, which faces away from the lower template main body 12, is provided with a first mating surface 133, and the first mating surface 133 is used for matching with the upper mold assembly 20.

Further, the two quick-release guide strips 17 arranged at intervals are further connected to the two opposite ends of the lower mold plate 11 corresponding to the lower mold core main body 12, in this embodiment, the quick-release guide strips 17 are arranged in an approximately inverted L shape, a sliding groove 170 is formed between the two quick-release guide strips 17 at the same end of the lower mold plate 11, and the sliding groove 170 is used for allowing the sliding portion 131 to slidably penetrate through so as to realize the sliding connection between the lower mold plate 11 and the quick-release block 13.

In this embodiment, the lower mold assembly 10 further includes side insert blocks 18 detachably connected to opposite sides of the lower mold core main body 12, and side insert guide bars 19 connected to opposite sides of the lower mold plate 11; the side insert block 18 is slidably connected to the side insert guide bar 19. Specifically, as shown in fig. 2, one surface of the side insert block 18 is connected to a pin portion 180, and the pin portion 180 penetrates through the lower core body 12 and then enters the recessed portion 120 to adapt to the shape of the product.

The upper mold assembly 20 includes an upper mold plate 21 and an upper mold core 22 detachably mounted on the bottom of the upper mold plate 21. Injection molding hole 23 has been seted up at the middle part of cope match-plate pattern 21, and guiding hole 24 has been seted up respectively to the relative four corners department of cope match-plate pattern 21, and guiding hole 24 and guide post 15 one-to-one to ensure the accurate counterpoint of last mould assembly 20 and lower mould assembly 10. The upper die plate 21 is used for abutting against the limiting column 14, and the upper die core 22 is used for abutting against the lower die core main body 12 and the quick-release block 13.

Specifically, as shown in fig. 5, two upper concave positions 220 are formed in the middle of the upper mold core 22, and the upper concave positions 220 correspond to the lower concave positions 220 one by one. Two opposite ends of the upper mold plate 21 corresponding to the upper mold core 22 are respectively provided with quick-release positioning holes 25, and the quick-release positioning holes 25 correspond to the quick-release blocks 13 one by one. The side of the quick-release positioning hole 25 opposite to the upper mold core 22 is provided with a second matching surface 250, and the second matching surface 250 is used for matching and abutting against the first matching surface 133 to ensure that the quick-release block 13 is tightly attached to the lower mold core main body 12. As shown in fig. 7, a gap between the upper mold core 22, the lower mold core main body 12 and the quick release block 13 forms an injection molding cavity 26, specifically, a gap between the upper concave position 220, the lower concave position 220 and the insertion part 132 forms the injection molding cavity 26, the injection molding cavity 26 is communicated with the injection molding hole 23, so that the molten plastic raw material flows into the injection molding cavity 26 through the injection molding hole 23 to be fixed and molded, thereby forming a product. In the actual manufacturing process, the quick-release block 13 is simply slid out of or into the sliding groove 170, and the different quick-release block 13 is replaced, mainly the plug-in part 132 with different shape is replaced to change the inner contour of the injection molding cavity 26, so as to form various products with similar shapes. Compared with the traditional mold core replacing mode, the embodiment can replace the quick-release block 13 by sliding, can quickly replace the lower mold core, simplifies the process, effectively improves the production efficiency and reduces the production cost.

Furthermore, the upper mold plate 21 has side insertion positioning holes 27 formed on opposite sides thereof corresponding to the upper mold core 22, and the side insertion positioning holes 27 correspond to the side insertion blocks 18 one by one.

The demolding assembly 30 comprises a bearing seat 31 connected to the bottom of the lower template 11, a driving plate 32 movably installed between the bearing seat 31 and the lower template 11, a plurality of ejector rods 33 connected to the top surface of the driving plate 32, a plurality of springs (not shown) connected between the driving plate 32 and the lower template 11, and guide rods 34 connected to two opposite ends of the driving plate 32; the guide rods 34 are used for sliding penetrating through the lower template 11. The ejector rod 33 is used for penetrating through the lower die plate 11 and the lower die core main body 12 and then protruding to exceed the top surface of the lower die core main body 12, and specifically, the ejector rod 33 is used for penetrating through the first through hole and the second through hole and then protruding to exceed the top surface of the lower die core main body 12 so as to lift an injection molding product and achieve a demolding effect.

Above-mentioned injection mold convenient to replacement, simple structure, convenient to use through changing quick detach piece 13, can realize the replacement of lower mould benevolence fast and change the inside profile in injection molding chamber 26, simplifies the replacement technology, effectively improves production efficiency, reduction in production cost.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An injection mold convenient to replace, comprising:

2. The easy-to-replace injection mold according to claim 1, wherein the quick-release block comprises a sliding part and an insertion part connected to one side of the sliding part; the sliding part is used for being connected with the lower template in a sliding mode, and the inserting part penetrates through the slot and then extends into the lower concave position.

3. The easy-to-replace injection mold according to claim 2, wherein the lower mold plate is further connected with two quick-release guide bars arranged at intervals at two opposite ends corresponding to the lower mold core main body; and a sliding groove is formed between the two quick-release guide strips at the same end of the lower template and is used for the sliding part to slide and penetrate so as to realize the sliding connection of the lower template and the quick-release block.

4. The easy-to-replace injection mold according to claim 2, wherein a first mating surface is provided on a side of the sliding portion facing away from the lower mold plate main body; quick-release positioning holes are respectively formed in the upper template corresponding to the two opposite ends of the upper die core, and the quick-release positioning holes correspond to the quick-release blocks one by one; and a second matching surface is arranged on one side of the quick-release positioning hole, which faces away from the upper die core, and is used for matching and abutting against the first matching surface.

5. The easy-to-replace injection mold of claim 1 further comprising a stripper assembly mounted to a bottom of the lower mold assembly; the demolding assembly comprises a bearing seat connected to the bottom of the lower template, a driving plate movably arranged between the bearing seat and the lower template, a plurality of ejector rods connected to the top surface of the driving plate, a plurality of springs connected between the driving plate and the lower template, and guide rods connected to two opposite ends of the driving plate; the guide rod is used for slidably penetrating the lower template.

6. The easy-to-replace injection mold according to claim 5, wherein the lower template is provided with a plurality of first through holes; a plurality of second through holes are formed in the lower die core main body corresponding to the lower concave positions, and the second through holes correspond to the first through holes one to one; the ejector rod is used for penetrating through the first through hole and the second through hole and then protrudes and extends out of the top surface of the lower mold core main body.