CN218256332U

CN218256332U - Rubber coating mould capable of improving demoulding efficiency of upper mould

Info

Publication number: CN218256332U
Application number: CN202221369713.1U
Authority: CN
Inventors: 钟国荣
Original assignee: Dg Kaibo Plastic Molding Co ltd
Current assignee: Dg Kaibo Plastic Molding Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2023-01-10
Anticipated expiration: 2032-06-01

Abstract

The utility model belongs to the technical field of the rubber coating mould technique and specifically relates to an improve rubber coating mould of mould drawing of patterns efficiency is related to, including last mould and the lower mould that covers each other and close, be provided with on going up the mould benevolence and dock in the runner system of last mould benevolence, be provided with the lower mould benevolence on the lower mould and dock in the ejection mechanism of lower mould benevolence, go up mould benevolence and the mutual butt joint of lower mould benevolence, and seted up the finished product shaping cavity between the butt joint face of last mould benevolence and lower mould benevolence, finished product shaping cavity is annular structure, and its cross section is "eight" font structure, the runner system specifically is through setting up a gas path way, the one end that makes gas path passageway intercommunication finished product shaping cavity is annular clearance, and this annular clearance encloses the top in finished product shaping cavity, after the finished product shaping, realize the drawing of patterns of finished product surface through the mode of blowing, make the die sinking after the finished product surface can not glue on the mould.

Description

Rubber coating mould capable of improving demoulding efficiency of upper mould

Technical Field

The utility model belongs to the technical field of the rubber coating mould technique and specifically relates to a rubber coating mould of mould drawing of patterns efficiency is gone up in improvement is related to.

Background

As the manufacture of the mold becomes more mature, a lot of finished products with complex designs can be produced in batch, and at present, when the annular finished product shown in fig. 1 is manufactured, because the section of the annular finished product is similar to a structure in a shape of a Chinese character 'ba', the annular finished product has an upward outer surface and a downward inner surface, and a plurality of fixture block structures which are uniformly distributed are arranged on the inner surface in a surrounding manner; when the finished product is subjected to a rubber coating process, the surface of the finished product is often stuck on an upper die after die opening, so that the overall quality of the finished product is affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

The rubber coating die capable of improving the upper die demolding efficiency comprises an upper die and a lower die which are mutually covered, wherein an upper die core and a runner system butted to the upper die core are arranged on the upper die, a lower die core and an ejection mechanism butted to the lower die core are arranged on the lower die, the upper die core and the lower die core are mutually butted, a finished product molding cavity is formed between the butting surfaces of the upper die core and the lower die core, the finished product molding cavity is of an annular structure, the cross section of the finished product molding cavity is of a structure in a shape like Chinese character 'ba', wherein the runner system comprises a feeding channel and a gas path channel which are respectively communicated with the finished product molding cavity, the gas path channel is positioned at one end communicated with the finished product molding cavity and is of an annular gap, and the annular gap surrounds the top of the finished product molding cavity; the ejection mechanism comprises a power push plate in power connection with the lower die and a plurality of ejector pins arranged on the power push plate, and the upper ends of the plurality of ejector pins are all in butt joint with the finished product forming cavity.

Preferably, the finished product forming chamber has a finished product outer surface portion corresponding to the upper mold core and a finished product inner surface portion corresponding to the lower mold core, the finished product outer surface portion includes a first outer annular surface and a first inner annular surface, the finished product inner surface portion includes a second outer annular surface and a second inner annular surface, wherein the upper ends of the first outer annular surface and the first inner annular surface are butted to form an annular gap, and the second outer annular surface and the upper end of the second inner annular surface are integrally combined.

Preferably, the insert is embedded in the upper mold core, the first inner annular surface is arranged on the insert, the gas path channel is arranged on the insert and comprises a gas inlet positioned at the upper end of the insert and a gas outlet positioned at the side part of the insert, and the insert and the upper mold core are in clearance fit to form an annular gap communicated with the gas outlet.

Preferably, the upper end of the ejector pin is provided with a side push surface arranged on the side part of the finished product forming cavity and a low push surface arranged at the bottom of the finished product forming cavity; the side push surface is arranged on the second outer ring surface, and the low push surface is arranged between the lower ends of the first outer ring surface and the second outer ring surface.

Preferably, the multi-heel ejector pin comprises a straight ejector pin and an inclined ejector pin which are arranged in a staggered mode, the straight ejector pin is fixedly installed on the power push plate, the inclined ejector pin is movably installed on the power push plate and extends outwards corresponding to the low push surface of the inclined ejector pin, and a fixture block profiling groove used for forming the fixture block is formed in the position, located at the lower end of the side push surface, of the inclined ejector pin.

Preferably, the ejection mechanism further comprises a guide plate positioned on the lower die, the guide plate is positioned between the power push plate and the lower die core, and a plurality of straight holes corresponding to the straight ejector pins one by one and inclined holes corresponding to the inclined ejector pins one by one are formed in the guide plate; the lower end of the thimble is connected with a fixed seat in a sliding way, the thimble is installed on the power push plate in a sliding way in an orientable way through the fixed seat, and a distance for the thimble to move is arranged between the upper end of the thimble and the second inner ring surface.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the structural design of a finished product, a flow channel system and an ejection mechanism are ingeniously arranged, wherein the flow channel system is specifically characterized in that an air channel is arranged, one end of the air channel communicated with a finished product forming cavity is an annular gap, the annular gap surrounds the top of the finished product forming cavity, after the finished product is formed, the demolding of the outer surface of the finished product is realized in an air blowing mode, the surface of the finished product cannot be adhered to an upper mold after the mold is opened, the ejection mechanism is arranged in a structure with multiple ejector pins, the multiple ejector pins are uniformly distributed, the finished product left on a lower mold core after the mold is opened is ejected through the pushing of a power push plate, the demolding of the inner surface of the finished product is completed, the forming effect of the finished product is improved, and the quality of the finished product is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic structural view of the present invention with the upper and lower dies removed;

figure 3 is a partial cross-sectional view of figure 2 of the present invention;

fig. 4 is a schematic diagram of the structure of fig. 3 a according to the present invention;

fig. 5 is a schematic structural view of the ejection mechanism of the present invention;

fig. 6 is a schematic structural view of the middle insert of the present invention.

The reference numbers and designations in the drawings are as follows:

the mold comprises an upper mold 10, a lower mold 20, a finished product molding cavity 30, a feeding channel 40, an air channel 50, an upper mold core 11, an insert 12, a lower mold core 21, a first outer annular surface 31, a first inner annular surface 32, a second outer annular surface 33, a second inner annular surface 34, an annular gap 51, an air inlet 52, an air outlet 53, a power push plate 61, an ejector pin 62, a side push surface 63, a low push surface 64, a fixture block contour groove 65, a guide plate 66, a straight hole 67, an inclined hole 68, a fixed seat 69, a straight ejector pin 621 and an inclined ejector pin 622.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below clearly and completely, and it should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, in an embodiment of the present invention, an encapsulating mold for improving an upper mold demolding efficiency includes an upper mold 10 and a lower mold 20 which are covered with each other, the upper mold 10 is provided with an upper mold core 11 and a runner system which is butted with the upper mold core 11, the lower mold 20 is provided with a lower mold core 21 and an ejection mechanism which is butted with the lower mold core 21, the upper mold core 11 and the lower mold core 21 are butted with each other, a finished product molding cavity 30 is disposed between butting surfaces of the upper mold core 11 and the lower mold core 21, the finished product molding cavity 30 is of an annular structure, and the cross section of the finished product molding cavity is of an "eight" shape structure, wherein the runner system includes a feeding channel 40 and an air channel 50 which are respectively communicated with the finished product molding cavity 30, the air channel 50 is located at one end which is communicated with the finished product molding cavity 30, and is an annular gap 51 which surrounds the top of the finished product molding cavity 30; the ejection mechanism comprises a power push plate 61 which is in power connection with the lower die 20 and a plurality of ejector pins 62 which are arranged on the power push plate 61, and the upper ends of the plurality of ejector pins 62 are all in butt joint with the finished product forming cavity 30.

In the above technical solution, the encapsulation mold is applied to molding a finished product as shown in fig. 1, and according to the structural design of the finished product, a flow channel system and an ejection mechanism are skillfully arranged, wherein the flow channel system is specifically configured by arranging an air channel 50, one end of the air channel 50, which is communicated with a finished product molding cavity 30, is an annular gap 51, and the annular gap 51 surrounds the top of the finished product molding cavity 30, after the finished product is molded, demolding of the outer surface of the finished product is realized by air blowing, so that the surface of the finished product after mold opening cannot be adhered to the upper mold 10, the ejection mechanism is configured by adopting a structure with a plurality of ejector pins 62, the plurality of ejector pins 62 are uniformly arranged, and the finished product left on the lower mold core 21 after mold opening is ejected by the pushing of the power push plate 61, thereby completing demolding of the inner surface of the finished product, and improving the molding effect of the finished product, thereby improving the quality of the finished product.

Referring to fig. 3, 4 and 6, the finished product forming chamber 30 has a finished product outer surface portion corresponding to the upper mold core 11 and a finished product inner surface portion corresponding to the lower mold core 21, the finished product outer surface portion includes a first outer annular surface 31 and a first inner annular surface 32, the finished product inner surface portion includes a second outer annular surface 33 and a second inner annular surface 34, wherein upper ends of the first outer annular surface 31 and the first inner annular surface 32 are butted to form an annular gap 51, and the upper ends of the second outer annular surface 33 and the second inner annular surface 34 are integrally combined; on this basis, the insert 12 is embedded in the upper mold core 11 in the gap between the first outer annular surface 31 and the first inner annular surface 32, the first inner annular surface 32 is arranged on the insert 12, the gas path channel 50 is arranged on the insert 12 and comprises a gas inlet 52 positioned at the upper end of the insert 12 and a gas outlet 53 positioned at the side part of the insert 12, and the insert 12 and the upper mold core 11 are in clearance fit to form an annular gap 51 communicated with the gas outlet 53.

Referring to fig. 5, the upper end of the thimble 62 has a side pushing surface 63 disposed at the side of the product-forming cavity 30 and a lower pushing surface 64 disposed at the bottom of the product-forming cavity 30; the side push surface 63 is arranged on the second outer annular surface 33, the low push surface 64 is arranged between the lower ends of the first outer annular surface 31 and the second outer annular surface 33, and through the design, the structure design that the inner side surface of a finished product is an inclined surface is utilized, so that the ejector pin 62 can be fully contacted with the finished product, the finished product can be ejected more efficiently, and the strain condition of the ejector pin 62 on the finished product is reduced.

Referring to fig. 2-5, according to the structure of the finished product with a fixture block on the inner side, in combination with the structure, the design is that the multiple ejector pins 62 include a straight ejector pin 621 and an inclined ejector pin 622 that are arranged in a staggered manner, the straight ejector pin 621 is fixedly mounted on the power push plate 61, the inclined ejector pin 622 is movably mounted on the power push plate 61, and extends outward corresponding to the low push surface 64 of the inclined ejector pin 622, and a fixture block profiling groove 65 for forming the fixture block is formed on the inclined ejector pin 622 at the lower end of the side push surface 63; through the design, in the ejection process of the ejector pin 62, the upper end of the inclined ejector pin 622 can move towards the middle, so that the fixture block profiling groove 65 and the fixture block on the finished product can be separated from each other; in regard to how the inclined thimble 622 realizes the action of inclined thimble, the ejection mechanism further comprises a guide plate 66 positioned on the lower die 20, the guide plate 66 is positioned between the power push plate 61 and the lower die core 21, and a plurality of straight holes 67 corresponding to the straight thimbles 621 one by one and inclined holes 68 corresponding to the inclined thimble 622 one by one are arranged on the guide plate 66; a fixed seat 69 is connected to the lower end of the thimble 62 in a sliding manner, the thimble 62 is mounted on the power push plate 61 in an orientable and slidable manner through the fixed seat 69, and a space for the thimble 62 to move is provided between the upper end of the thimble 62 and the second inner annular surface 34. The design of the space, in combination with the actual structure of the product, when there is a certain spatial radian or plane between the top of the second outer ring surface 33 and the top of the second inner ring surface 34, the upper end of the slanted ejecting pin 622 can be directly arranged to be flush with the upper end of the second outer ring surface 33, and can itself form a certain space through the radian or plane, if there is no transitional structure between the top of the second outer ring surface 33 and the top of the second inner ring surface 34, there can be a height difference between the upper end of the slanted ejecting pin 622 and the upper end of the second outer ring surface 33, and the space is formed through the height difference.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The rubber coating die capable of improving the upper die demolding efficiency comprises an upper die and a lower die which are mutually covered, wherein an upper die core and a runner system butted with the upper die core are arranged on the upper die, a lower die core and an ejection mechanism butted with the lower die core are arranged on the lower die, the upper die core and the lower die core are mutually butted, and a finished product molding cavity is formed between the butted surfaces of the upper die core and the lower die core; the ejection mechanism comprises a power push plate in power connection with the lower die and a plurality of ejector pins arranged on the power push plate, and the upper ends of the plurality of ejector pins are all in butt joint with the finished product forming cavity.

2. The overmold die of claim 1, wherein the product forming chamber has a product outer surface portion corresponding to the upper die core and a product inner surface portion corresponding to the lower die core, the product outer surface portion including a first outer annular surface and a first inner annular surface, the product inner surface portion including a second outer annular surface and a second inner annular surface, wherein upper ends of the first outer annular surface and the first inner annular surface abut and form an annular gap, and the second outer annular surface and the second inner annular surface are integrally joined.

3. The rubber coating mold for improving the upper mold stripping efficiency according to claim 2, wherein the insert is embedded in the upper mold core, the first inner annular surface is arranged on the insert, the gas passage is arranged on the insert and comprises a gas inlet at the upper end of the insert and a gas outlet at the side part of the insert, and the insert and the upper mold core are in clearance fit to form an annular gap communicated with the gas outlet.

4. The overmold for improving upper mold release efficiency according to any of claims 2-3, wherein the upper end of the ejector pin has a side push surface disposed at the side of the finished molding cavity and a low push surface disposed at the bottom of the finished molding cavity; the side pushing surface is arranged on the second outer ring surface, and the low pushing surface is arranged between the lower ends of the first outer ring surface and the second outer ring surface.

5. The rubber coating mold for improving the upper mold stripping efficiency as claimed in claim 4, wherein the multiple ejector pins comprise a straight ejector pin and an inclined ejector pin which are arranged in a staggered manner, the straight ejector pin is fixedly arranged on the power push plate, the inclined ejector pin is movably arranged on the power push plate and extends outwards corresponding to the low push surface of the inclined ejector pin, and a fixture block profiling groove for forming a fixture block is formed in the inclined ejector pin at the lower end of the side push surface.

6. The rubber coating mold for improving the demolding efficiency of the upper mold as claimed in claim 5, wherein the ejection mechanism further comprises a guide plate positioned on the lower mold, the guide plate is positioned between the power push plate and the lower mold core, and a plurality of straight holes corresponding to the straight ejector pins one by one and inclined holes corresponding to the inclined ejector pins one by one are formed in the guide plate; the lower end of the thimble is connected with a fixed seat in a sliding way, the thimble is installed on the power push plate in a sliding way in an orientable way through the fixed seat, and a distance for the thimble to move is arranged between the upper end of the thimble and the second inner ring surface.