CN216578994U

CN216578994U - Be applied to exempt from to tear open aperture injection mold of silica gel product

Info

Publication number: CN216578994U
Application number: CN202123328516.3U
Authority: CN
Inventors: 刘建文
Original assignee: Dongguan Renying Electronic Co ltd
Current assignee: Dongguan Renying Electronic Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-24
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to the technical field of injection molds, in particular to a disassembly-free small hole injection mold applied to silica gel products, which comprises an upper mold and a lower mold matched with the upper mold, wherein the lower end of the upper mold is provided with a plurality of product outer surface contour grooves distributed in an array manner, the upper end of the lower mold is provided with a plurality of product inner surface contour blocks distributed in an array manner, the product outer surface contour grooves correspond to the product inner surface contour blocks, the top of the product outer surface contour grooves is provided with small hole contour columns, the product inner surface contour blocks are provided with waste chutes butted with the small hole contour columns, when the mold is closed, the lower parts of the small hole contour columns are in clearance fit with the waste chutes, the waste parts are processed into inner holes after the mold is formed, and the self-disassembly edges are made into the production process of clearance fit, after the waste materials are disassembled, the small hole parts of the products can be ensured not to be torn and damaged, and the outer hole parts are not punched or do the actions of the disassembly edges, ensuring extremely high integrity.

Description

Be applied to exempt from to tear open aperture injection mold of silica gel product

Technical Field

The utility model belongs to the technical field of the injection mold technique and specifically relates to a be applied to exempt from to tear open aperture injection mold of silica gel product.

Background

The waterproof cap is a silica gel material treated by high-energy ion radiation, is in a cap shape in appearance, is formed by coating a layer of hot melt adhesive film on a pipe after expansion molding, has the characteristics of higher mechanical strength, aging resistance, environmental stress cracking resistance, good sealing performance and the like, has longer service life, and is suitable for water prevention and protection of pipe ends of various specifications;

at present, waterproof cap adopts hot briquetting mould to make, the preparation is as this kind of waterproof cap of silica gel shown in figure 1, need set up the aperture in the upper end of waterproof cap of silica gel, because the lateral part of waterproof cap of silica gel is the slope structure, traditional mode is through going into the outer lane of product aperture with the waste material part, make the product aperture mainly through inboard mould shaping, can reduce the lateral part and the top of waterproof cap of silica gel and cause the drag injury when the outside drawing of patterns, but this kind of structural design of tradition can cause product aperture edge damage after demolising the waste material, tear, it is necessary to propose an improved technical scheme in order to solve above-mentioned problem to this.

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.

An injection mold with a non-dismantling small hole applied to a silica gel product comprises an upper mold and a lower mold matched with the upper mold, a plurality of product outer surface profiling grooves which are arranged in an array are arranged at the lower end of the upper die, a plurality of product inner surface profiling blocks which are arranged in an array are arranged at the upper end of the lower die, the product outer surface profiling grooves and the product inner surface profiling blocks are mutually corresponding, the top of the profiling groove on the outer surface of the product is provided with a small hole profiling column, the profiling block on the inner surface of the product is provided with a waste material groove butted with the small hole profiling column, when the die is closed, the lower part of the small hole profiling column is in clearance fit with the waste material groove, and the distance from the side part of the product outer surface profile groove to the side part of the product inner surface profile block is gradually reduced from top to bottom, so that the distance from the top of the product outer surface profile groove to the top of the product inner surface profile block is greater than or equal to the distance from the side part of the product outer surface profile groove to the side part of the product inner surface profile block.

Preferably, the distance of the clearance fit between the lower part of the small hole profiling column and the waste chute is set to be between 0.01cm and 0.03 cm.

Preferably, the distance of the clearance fit between the lower part of the small hole profiling column and the waste chute is set to be 0.02 CM.

Preferably, the product outer surface contour groove comprises an upper side surface inclined groove, a middle side surface vertical groove and a lower step groove, the product inner surface contour block comprises an upper side surface inclined block and a lower side surface vertical block, and the part of the distance from the side part of the product outer surface contour groove to the side part of the product inner surface contour block, which is gradually reduced from top to bottom, corresponds to the part from the side surface of the side surface inclined groove to the side surface of the side surface inclined block.

Preferably, two diagonal positions corresponding to one of the diagonals of the lower end of the upper die are respectively provided with a first handle groove, two diagonal positions corresponding to one of the diagonals of the upper end of the lower die are respectively provided with a second handle groove, and the diagonals corresponding to the first handle groove and the second handle groove are perpendicular to each other.

Preferably, through holes are formed in the four corners of the upper die and the lower die respectively, guide columns extending out of the upper portion of the lower die are installed in the through holes of the lower die, a connecting shaft sleeve is arranged in the through holes of the upper die, and the guide columns are matched with the connecting shaft sleeve in an inserting mode.

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

after the die is formed, the waste material part is processed into the inner hole, and the self-dismantling edge is made into a production process of clearance fit, after the waste material is dismantled, the small hole part of the product can be guaranteed not to be torn and damaged, and the outer hole part is guaranteed to be extremely high in integrity because no punching or edge dismantling action is carried out; and the distance from the side part of the product outer surface profile groove to the side part of the product inner surface profile block is gradually reduced from top to bottom, so that the distance from the top of the product outer surface profile groove to the top of the product inner surface profile block is greater than or equal to the distance from the side part of the product outer surface profile groove to the side part of the product inner surface profile block, dragging damage to the side part and the top part of the silica gel waterproof cap during outer side demoulding can be reduced, and the waterproof rate can reach 95%.

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 structural view of a prior art silicone waterproof cap;

FIG. 2 is a schematic structural view of the silica gel waterproof cap manufactured by the present invention;

fig. 3 is a schematic structural diagram of the present invention;

FIG. 4 is a schematic view of the matching structure of the product outer surface contour groove and the product inner surface contour block of the present invention;

fig. 5 is a schematic view of the matching structure of the small hole profiling column and the waste chute of the present invention.

The reference numerals and names in the figures are as follows:

the device comprises an upper die 10, a lower die 20, a product outer surface contour groove 11, a small hole contour column 12, a first handle groove 13, a connecting shaft sleeve 14, a product inner surface contour block 21, a waste groove 22, a second handle groove 23, a guide column 24, a side inclined groove 111, a side vertical groove 112, a step groove 113, a side inclined block 211 and a side vertical block 212.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but 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. 2-5, in an embodiment of the present invention, a disassembly-free small hole injection mold for a silica gel product is designed by using a hot press molding process to design an upper mold 10 and a lower mold 20, wherein a plurality of product outer surface contour grooves 11 arranged in an array are formed at a lower end of the upper mold 10, a plurality of product inner surface contour blocks 21 arranged in an array are formed at an upper end of the lower mold 20, and the product outer surface contour grooves 11 correspond to the product inner surface contour blocks 21; by arranging the small hole profiling column 12 at the top of the product outer surface profiling groove 11 and arranging the waste trough 22 butted with the small hole profiling column 12 on the product inner surface profiling block 21, when the die is closed, the lower part of the small hole profiling column 12 is in clearance fit with the waste trough 22, through the design, the waste part is processed into an inner hole after the die is formed, and the self-dismantling edge is made into a production process of clearance fit, after the waste is dismantled, the small hole part of the product can be ensured not to be torn and damaged, and the outer hole part ensures extremely high integrity because no punching or edge dismantling action is carried out again, in addition, the distance from the top of the product outer surface profiling groove 11 to the top of the product inner surface profiling block 21 is gradually reduced from top to bottom, so that the distance from the top of the product outer surface profiling groove 11 to the top of the product inner surface profiling block 21 is larger than or equal to the distance from the side of the product outer surface profiling groove 11 to the side of the product inner surface profiling block 21, can reduce the lateral part and the top of the silica gel waterproof cap when the outer side is demolded, can reach 95% waterproof rate.

Further, as shown in FIG. 5, the distance of the lower portion of the small hole copying column 12 to be fitted into the waste chute 22 is set to 0.01CM to 0.03CM, and preferably, the distance of the lower portion of the small hole copying column 12 to be fitted into the waste chute 22 is set to 0.02 CM.

For the structure of the product, as shown in fig. 4, an annular ring is extended from the opening edge of the silica gel waterproof cap, and a vertical transition portion is further disposed between the annular ring and the inclined side wall of the silica gel waterproof cap for transition, and the silica gel waterproof cap with the structural design specifically includes the following structural designs for the product outer surface contour groove 11 and the product inner surface contour block 21 according to the technical scheme: the product outer surface contour groove 11 comprises an upper side surface inclined groove 111, a middle side surface vertical groove 112 and a lower step groove 113, the product inner surface contour block 21 comprises an upper side surface inclined block 211 and a lower side surface vertical block 212, the distance from the side part of the product outer surface contour groove 11 to the side part of the product inner surface contour block 21 is gradually reduced from top to bottom, and the part from the side surface of the side surface inclined groove 111 to the side surface of the side surface inclined block 211 corresponds to the part from the side surface of the side surface inclined groove 111 to the side surface of the side surface inclined block 211, so that waste materials generated in a gap between the upper die 10 and the lower die 20 after the product is formed are positioned at the edge of an annular ring, and the integrity of the silica gel waterproof cap can be guaranteed most reasonably after edge removal.

As further shown in fig. 3, two diagonal positions corresponding to one of the diagonals of the lower end of the upper mold 10 are respectively provided with a first handle groove 13, two diagonal positions corresponding to one of the diagonals of the upper end of the lower mold 20 are respectively provided with a second handle groove 23, the diagonals corresponding to the first handle groove 13 and the second handle groove 23 are perpendicular to each other, so as to facilitate the assembly of the upper mold 10 and the lower mold 20, the four corners of the upper mold 10 and the lower mold 20 are respectively provided with a through hole, a guide post 24 extending out of the upper side of the lower mold 20 is installed in the through hole of the lower mold 20, a connecting shaft sleeve 14 is installed in the through hole of the upper mold 10, and the guide post 24 is in inserting fit with the connecting shaft sleeve 14, thereby achieving the precise guiding fit of the upper mold 10 and the lower mold 20.

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. An injection mold with a non-dismantling small hole applied to a silica gel product comprises an upper mold and a lower mold matched with the upper mold, it is characterized in that the lower end of the upper die is provided with a plurality of product outer surface profiling grooves which are arranged in an array manner, a plurality of product inner surface contour blocks which are arranged in an array are arranged at the upper end of the lower die, the product outer surface contour grooves and the product inner surface contour blocks correspond to each other, the top of the profiling groove on the outer surface of the product is provided with a small hole profiling column, the profiling block on the inner surface of the product is provided with a waste material groove butted with the small hole profiling column, when the die is closed, the lower part of the small hole profiling column is in clearance fit with the waste material groove, and the distance from the side part of the product outer surface profile groove to the side part of the product inner surface profile block is gradually reduced from top to bottom, so that the distance from the top of the product outer surface profile groove to the top of the product inner surface profile block is greater than or equal to the distance from the side part of the product outer surface profile groove to the side part of the product inner surface profile block.

2. The disassembly-free small-hole injection mold for the silica gel product as claimed in claim 1, wherein the distance of the clearance fit between the lower part of the small-hole profiling column and the waste chute is set to be between 0.01cm and 0.03 cm.

3. The disassembly-free small-hole injection mold for the silica gel product as claimed in claim 1, wherein the distance of the clearance fit between the lower part of the small-hole profiling column and the waste chute is set to 0.02 CM.

4. The disassembly-free small hole injection mold applied to the silica gel product as claimed in any one of claims 1 to 3, wherein the product outer surface contour groove comprises an upper side surface inclined groove, a middle side surface vertical groove and a lower step groove, the product inner surface contour block comprises an upper side surface inclined block and a lower side surface vertical block, and the part of the distance from the side part of the product outer surface contour groove to the side part of the product inner surface contour block, which gradually decreases from top to bottom, corresponds to the part from the side surface of the side surface inclined groove to the side surface of the side surface inclined block.

5. The disassembly-free small hole injection mold for the silica gel product as recited in claim 1, wherein the upper mold is provided with a first handle groove at two diagonal positions corresponding to one of the diagonals at the lower end, the lower mold is provided with a second handle groove at two diagonal positions corresponding to one of the diagonals at the upper end, and the diagonals corresponding to the first handle groove and the second handle groove are perpendicular to each other.

6. The disassembly-free small-hole injection mold for the silica gel product as claimed in claim 1, wherein through holes are respectively formed at four corners of the upper mold and the lower mold, a guide post extending above the lower mold is installed in the through hole of the lower mold, a connecting shaft sleeve is installed in the through hole of the upper mold, and the guide post is in insertion fit with the connecting shaft sleeve.