CN212331697U

CN212331697U - Injection mold with replaceable mold core

Info

Publication number: CN212331697U
Application number: CN202020815309.7U
Authority: CN
Inventors: 许文燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-16
Filing date: 2020-05-16
Publication date: 2021-01-12
Anticipated expiration: 2030-05-16

Abstract

The utility model discloses an injection mold with a replaceable mold core, which comprises a base, wherein a lower mold structure, a middle mold structure and an upper mold structure which correspond to each other are sequentially arranged on the base, and the middle mold structure comprises a lower mold mounting plate, a lower mold base, a lower mold core and an upper mold base; four corners of the upper surface of the lower die mounting plate are respectively provided with a rectangular boss, the adjacent corresponding side surfaces of the four bosses are provided with a fixed station, the lower die base is arranged in the middle of the four bosses, the bottom of the lower die base extends towards the periphery, the height of the extending part is equal to that of the fixed station, the fixed station is provided with a fixed block, the fixed block and the fixed station correspond and are connected by bolts, the width of the bottom surface of the fixed block is larger than that of the fixed station, and the exceeding part of the bottom of the lower die base is pressed on the extending part; the utility model discloses simple structure, convenient to use, but the quick replacement mold core improves production efficiency, can make mould used repeatedly, reduce cost.

Description

Injection mold with replaceable mold core

Technical Field

The utility model relates to the technical field of mold, especially, relate to an injection mold of removable mold core.

Background

Injection molds are a critical piece of equipment for producing plastic articles. The quality of the product is good and the precision is closely related to the quality. Most of injection molds in the prior art are designed and manufactured aiming at a product with a certain fixed specification, a mold core and a mold frame of the injection mold are only suitable for production of the product, different mold cores and even mold frames need to be designed for products with different models, and the universality is not strong. For the products produced in series, the specification and the shape characteristic of the products are not changed greatly, if one product has a plurality of models, and if one mould is designed and manufactured for each model, a plurality of sets of moulds need to be designed and manufactured, so that the product cost is increased, and different moulds need to be replaced frequently when plastic parts are produced, thereby greatly reducing the working efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a novel injection mold of removable mold core is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an injection mold with a replaceable mold core comprises a base, wherein the base is quadrilateral, a lower mold structure, a middle mold structure and an upper mold structure which correspond to each other are sequentially arranged on the base, and the middle mold structure comprises a lower mold mounting plate, a lower mold base, a lower mold core and an upper mold base;

four corners of the upper surface of the lower die mounting plate are respectively provided with a quadrangular boss, the adjacent and corresponding side surfaces of the four bosses are provided with a fixed station, the lower die base is arranged between the four bosses, the bottom of the lower die base extends towards the periphery, the height of an extending part is equal to that of the fixed station, the fixed station is provided with a fixed block, the fixed block and the fixed station correspond and are connected by bolts, the width of the bottom surface of the fixed block is greater than that of the fixed station, and the exceeding part of the bottom surface of the fixed block is pressed on the extending part of the bottom of the lower die base;

the periphery of the lower die base is provided with a trapezoidal table respectively, the width of the bottom surface of each of the four trapezoidal tables is larger than that of the top surface of each of the four trapezoidal tables, the height of each of the four trapezoidal tables is larger than that of each of the four bosses, and the middle of the lower die base is provided with a lower die core;

the upper die base sets up the higher authority of lower mould mounting panel, the upper die base lower surface is provided with four trapezoidal recesses, four trapezoidal recess and four the mutual lock of trapezoidal platform, upper die base lower surface middle part is provided with the mold core, go up the mold core with the lower mold core corresponds, the upper surface of upper die base is provided with the drainage recess, drainage recess bottom is provided with a plurality of running through the upper die base with the feed port of going up the mold core.

Preferably, lower die structure includes first backup pad, second backup pad, third backup pad, first support column, second support column, first backup pad with the second backup pad sets up the base upper surface left and right sides, the third backup pad with base parallel arrangement, both ends are connected respectively about the third backup pad first backup pad with the corresponding side of second backup pad, the lower surface left and right sides of lower mould mounting panel respectively with the upper surface connection of first backup pad and second backup pad, the third backup pad runs through to be provided with first support column with the second support column, first support column with the lower extreme of second support column is fixed on the base, first support column with the upper end of second support column is connected the lower surface of lower mould mounting panel.

Preferably, go up the die structure and include the roof, go up the die mounting panel, it sets up to go up the die holder the higher authority, the roof sets up go up the higher authority of die mounting panel, go up the die mounting panel with the middle part of roof is provided with the unloading hole that runs through the correspondence, the unloading hole with the drainage recess corresponds.

Preferably, the lower surface of the upper die mounting plate is provided with a plurality of ventilation grooves, one ends of the ventilation grooves penetrate through the side surface of the upper die mounting plate, the top of the upper die core is provided with a plurality of penetrating ventilation holes, and the other ends of the ventilation grooves correspond to the plurality of ventilation holes respectively.

Preferably, the top plate and the two opposite side surfaces of the lower die mounting plate are connected through two connecting sheets respectively, the top plate and the two opposite side surfaces of the upper die base are connected through four fixing sheets respectively, and the connecting sheets and the two fixing sheets are located on the same side.

Preferably, four respectively set up a fixed screw on the boss, fixed screw is inside to have a screw thread, the upper die base go up the mould mounting panel with four angles that correspond on the roof all are provided with the diameter with the hole that fixed screw diameter equals, will in proper order through the screw the upper die base go up the mould mounting panel with the roof with the lower mould mounting panel is connected.

Preferably, the upper surface of the third supporting plate is provided with a plurality of heat-conducting columns, and the heat-conducting columns respectively penetrate through the lower die mounting plate and are connected to the bottom of the lower die base.

Compared with the prior art, the utility model has the advantages of simple structure, convenient to use, but the quick replacement mold core improves production efficiency, can make mould used repeatedly, reduce cost.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of the lower die holder in fig. 1 of the present invention;

fig. 3 is a schematic view of the lower surface structure of the upper die base in fig. 1 according to the present invention;

fig. 4 is a schematic view of the upper surface structure of the lower die holder in fig. 1 according to the present invention;

fig. 5 is a schematic view of the lower surface structure of the upper mold mounting plate in fig. 1 according to the present invention;

fig. 6 is a schematic structural view of the fixing block, the fixing table and the bottom extension part of the lower die holder in fig. 2 of the present invention;

fig. 7 is a schematic view of the lower mold structure in fig. 1 according to the present invention;

the figures above show: the base 10, first backup pad 11, second backup pad 12, third backup pad 13, first support column 14, second support column 20, heat conduction post 15, lower mould installation bar 16, upper die base 17, go up mould mounting panel 18, roof 19, die holder 21, lower die core 22, boss 23, fixed block 24, die holder bottom extension 25, fixed step 26, trapezoidal platform 27, trapezoidal recess 28, go up die core 29, feed port 31, air vent 42, drainage groove 43, connection piece 52, stationary blade 66, fixed screw 61.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" 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," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1-7, an embodiment of the present invention is an injection mold with replaceable mold core, which comprises a base 10, wherein the base is quadrilateral, and a lower mold structure, a middle mold structure and an upper mold structure are sequentially disposed on the base 10, and the middle mold structure includes a lower mold mounting plate 16, a lower mold base 21, a lower mold core 22 and an upper mold base 17;

four corners of the upper surface of the lower die mounting plate 16 are respectively provided with a quadrangular boss 23, the adjacent corresponding side surfaces of the four bosses 23 are provided with a fixed table 26, the lower die base 21 is arranged in the middle of the four bosses 26, the bottom of the lower die base 21 extends towards the periphery, the height of an extending part 25 is equal to that of the fixed table 26, the fixed table 26 is provided with a fixed block 24, the fixed block 24 is corresponding to the fixed table 26 and is connected with the fixed table 26 by bolts, the width of the bottom surface of the fixed block 24 is greater than that of the fixed table 26, and the exceeding part is pressed on the extending part 25 at the bottom of the lower die base;

the periphery of the lower die base 21 is respectively provided with a trapezoidal table 27, the width of the bottom surface of each of the four trapezoidal tables 27 is greater than that of the top surface of each of the four trapezoidal tables 27, the height of each of the four trapezoidal tables 27 is greater than that of each of the four bosses 23, and the middle of the lower die base 21 is provided with a lower die core 22;

the upper die base 17 sets up the higher authority of lower mould mounting panel 16, the upper die base 17 lower surface is provided with four trapezoidal recesses 28, four trapezoidal recess 28 groove and four trapezoidal platform 27 lock each other, upper die base lower surface middle part is provided with mold core 29, go up mold core 29 with lower mold core 22 is corresponding, the upper surface of upper die base 17 is provided with drainage groove 43, drainage groove bottom 43 portion is provided with a plurality of runs through the upper die base 17 with the feed port 31 of going up mold core 29.

This embodiment is through dismantling the fixed block, but the die holder of the different products of quick replacement, through setting up the structure of the mutual lock of trapezoidal recess, makes the mold core more accurate with lower mold core lock, and is more convenient. The arrangement of the plurality of drainage grooves and the feeding hole can enable feeding to be more uniform and more efficient.

Preferably, the lower mold structure includes a first support plate 11, a second support plate 12, a third support plate 13, a first support column 14, a second support column 20, the first support plate 11 and the second support plate 13 are arranged at the left and right sides of the upper surface of the base 10, the third supporting plate 13 is arranged in parallel with the base 10, the left end and the right end of the third supporting plate 13 are respectively connected with the corresponding side surfaces of the first supporting plate 11 and the second supporting plate 12, the left and right sides of the lower surface of the lower die mounting plate 16 are respectively connected with the upper surfaces of the first support plate 11 and the second support plate 12, the third supporting plate 13 is provided with the first supporting column 14 and the second supporting column 20 in a penetrating manner, the lower ends of the first supporting column 14 and the second supporting column 20 are fixed on the base 10, the upper ends of the first support column 14 and the second support column 20 are connected to the lower surface of the lower die mounting plate 16.

The lower die structure can make the die structure more stable and not easy to damage by using the first support plate 11, the second support plate 12, the third support plate 13, the first support column 14 and the second support column 20.

Preferably, go up the mould structure and include roof 19, go up mould mounting panel 18, it sets up to go up mould mounting panel 18 the higher authority of upper die base 17, roof 19 sets up the higher authority of last mould mounting panel 18, go up mould mounting panel 18 with the middle part of roof 19 is provided with and runs through corresponding unloading hole 31, unloading hole 31 with drainage groove 43 corresponds.

Preferably, the lower surface of the upper mold mounting plate 18 is provided with a plurality of vent grooves 41, one ends of the plurality of vent grooves 41 penetrate through the side surface of the upper mold mounting plate 18, the top of the upper mold core 29 is provided with a plurality of penetrating vent holes 42, and the other ends of the plurality of vent grooves 41 correspond to the plurality of vent holes 42 respectively.

The vent groove 41 and the vent hole 42 can be separately arranged in the embodiment, and only different upper die bases 17 need to be replaced without replacing the upper die mounting plates 18.

Preferably, two opposite side surfaces of the top plate 19 and the lower die mounting plate 16 are respectively connected through two connecting pieces 52, two opposite side surfaces of the top plate 19 and the upper die base 17 are respectively connected through four fixing pieces 66, and the connecting pieces 52 and the two fixing pieces 66 are located on the same side.

Preferably, four bosses 23 are respectively provided with a fixing screw hole 61, the fixing screw holes 61 are internally provided with threads, four corresponding corners of the upper die base 17, the upper die mounting plate 18 and the top plate 19 are respectively provided with holes with the same diameter as the fixing screw holes, and the upper die base 17, the upper die mounting plate 18, the top plate 19 and the lower die mounting plate 16 are sequentially connected through screws.

Preferably, a plurality of heat conduction columns 15 are arranged on the upper surface of the third support plate 13, and the plurality of heat conduction columns 15 respectively penetrate through the lower die mounting plate 16 and are connected to the bottom of the lower die base 21.

The injection mold of this embodiment sets up down mold core and die holder as an organic whole when using, goes up mold core and upper die holder an organic whole, and all moulds use unified standard, and die holder and upper die holder all can be dismantled fast, for example production backshell class product, the same the size, only need change the die holder can, save time saves the cost, raises the efficiency.

It should be noted that the above technical features are continuously combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; moreover, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an injection mold of removable mold core which characterized in that: the die comprises a base, wherein the base is quadrilateral, a lower die structure, a middle die structure and an upper die structure which correspond to each other are sequentially arranged on the base, and the middle die structure comprises a lower die mounting plate, a lower die base, a lower die core and an upper die base;

2. The core-replaceable injection mold of claim 1, wherein: lower die structure includes first backup pad, second backup pad, third backup pad, first support column, second support column, first backup pad with the second backup pad sets up the base upper surface left and right sides, the third backup pad with base parallel arrangement, the third backup pad is controlled both ends and is connected respectively first backup pad with the corresponding side of second backup pad, the lower surface left and right sides of lower mould mounting panel respectively with the upper surface connection of first backup pad and second backup pad, the third backup pad runs through to be provided with first support column with the second support column, first support column with the lower extreme of second support column is fixed on the base, first support column with the upper end of second support column is connected the lower surface of lower mould mounting panel.

3. The core-replaceable injection mold of claim 1, wherein: go up the die structure and include the roof, go up the die mounting panel, it sets up to go up the die mounting panel the higher authority of upper die base, the roof sets up go up the die mounting panel the higher authority, go up the die mounting panel with the middle part of roof is provided with the unloading hole that runs through the correspondence, the unloading hole with the drainage recess corresponds.

4. The core-replaceable injection mold of claim 3, wherein: the lower surface of going up the mould mounting panel is provided with a plurality of ventilation grooves, and is a plurality of the one end of ventilation groove runs through the side of going up the mould mounting panel, the top of going up the mold core is provided with a plurality of air vents that run through, and is a plurality of the other end of ventilation groove is respectively with a plurality of the air vent is corresponding.

5. The core-replaceable injection mold of claim 3, wherein: the top plate and two opposite side surfaces of the lower die mounting plate are connected through two connecting pieces respectively, the top plate and two opposite side surfaces of the upper die base are connected through four fixing pieces respectively, and the connecting pieces and the two fixing pieces are located on the same side.

6. The core-replaceable injection mold of claim 3, wherein: four respectively set up a fixed screw on the boss, fixed screw is inside to have a screw thread, the upper die base go up the mould mounting panel with four angles that correspond on the roof all are provided with the diameter with the hole that fixed screw diameter equals, will in proper order through the screw the upper die base go up the mould mounting panel with the roof with the lower mould mounting panel is connected.

7. The core-replaceable injection mold of claim 2, wherein: the upper surface of the third supporting plate is provided with a plurality of heat-conducting columns, and the heat-conducting columns respectively penetrate through the lower die mounting plate and are connected to the bottom of the lower die base.