CN217752570U

CN217752570U - Mould capable of pumping air to mould cavity

Info

Publication number: CN217752570U
Application number: CN202221791734.2U
Authority: CN
Inventors: 梁祖强; 梁祖健
Original assignee: Shenzhen Lipin Plastic Mould Products Co ltd
Current assignee: Shenzhen Lipin Plastic Mould Products Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-08
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a can bleed mould to die cavity, include: the back template and the back mould benevolence of fixing in the back template, the die joint of back mould benevolence is equipped with the inclined plane that is used for the shaping product. The first end of inclined plane is higher than its second end, and the embedded at least one exhaust mold insert that is equipped with of first end on inclined plane, and the top terminal surface of exhaust mold insert and inclined plane parallel and level. Be equipped with the vacuum generator with the exhaust mold insert one-to-one on the outer wall of back template, the gas circuit intercommunication is passed through with the exhaust mold insert's that corresponds bottom to vacuum generator, and the gas circuit is seted up in back template and back mould benevolence. The beneficial effects of the utility model reside in that: inlay through the higher one end in the inclined plane of shaping product and establish the exhaust mold insert, can in time remove the gas of the internal higher position in shaping cavity, the gas trapping phenomenon that significantly reduces, the structure commonality of exhaust mold insert is good moreover, and mould processing is more convenient, and manufacturing cost is lower.

Description

Mould capable of pumping air to mould cavity

Technical Field

The utility model relates to a technical field of mould, in particular to mould that can bleed to die cavity.

Background

When the mold is used for injection molding, gas in a molding cavity of the mold can be discharged from a gap of the mold under the extrusion of the plastic melt. However, some molds have height fall due to the limitation of product shapes, and gas at a higher position in the molding cavity is easily not discharged in time and is wrapped in the molding cavity by plastic, so that gas trapping occurs in the product, and the molding quality of the product is influenced. At present, various types of exhaust grooves or holes are generally designed in the die for solving the problem of die air trapping, but the exhaust structures have poor universality, large die processing difficulty and high production cost.

SUMMERY OF THE UTILITY MODEL

To the problems existing in the prior art, the utility model provides a mould that can bleed to the die cavity.

In order to achieve the above object, the utility model provides a can bleed the mould of die cavity, include: the rear mould comprises a rear mould plate and a rear mould core fixed in the rear mould plate, wherein a parting surface of the rear mould core is provided with an inclined plane for forming a product. The first end of inclined plane is higher than its second end, and the embedded at least one exhaust mold insert that is equipped with of first end on inclined plane, and the top terminal surface of exhaust mold insert and inclined plane parallel and level. The outer wall of the rear template is provided with vacuum generators which correspond to the exhaust inserts one by one, the vacuum generators are communicated with the bottoms of the exhaust inserts corresponding to the vacuum generators through air paths, and the air paths are formed in the rear template and the rear mold core.

Preferably, the exhaust insert consists of a plurality of T-shaped inserts which are connected in series through a bolt, the length of the bolt is smaller than the total thickness of the T-shaped inserts, and the bolt and the T-shaped inserts are in over fit.

Preferably, the rear mold core comprises: mould benevolence mold insert and mould benevolence seat, T type through-hole has been seted up to mould benevolence mold insert, and in T type through-hole was arranged in to the top of exhaust mold insert, the bottom of exhaust mold insert supported the top terminal surface at mould benevolence seat, and the gas circuit is seted up in back template, mould benevolence seat and mould benevolence mold insert.

Preferably, the top end surface of the mold core seat is provided with a V-shaped gas collecting groove communicated with the gas path, and the bottoms of the T-shaped inserts are positioned above the V-shaped gas collecting groove.

Preferably, the abutting surface of the mold core seat and the rear template is provided with a sealing rubber ring sleeved on the outer periphery of the air path.

Compared with the prior art, the beneficial effects of the utility model reside in that: inlay through the higher one end in the inclined plane of shaping product and establish the exhaust mold insert, can in time remove the gas of the internal higher position in shaping cavity, the gas trapping phenomenon that significantly reduces, the structure commonality of exhaust mold insert is good moreover, and mould processing is more convenient, and manufacturing cost is lower.

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 the structures shown in the drawings without creative efforts.

Fig. 1 is a perspective structural view of an embodiment of the present invention;

fig. 2 is a cross-sectional structural view of an embodiment of the present invention;

fig. 3 is a three-dimensional structure diagram of an exhaust insert according to an embodiment of the present invention;

the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

Detailed Description

The utility model provides a can be to mould that the die cavity bled.

Referring to fig. 1-3, fig. 1 is a three-dimensional structure diagram of an embodiment of the present invention, fig. 2 is a cross-sectional structure diagram of an embodiment of the present invention, and fig. 3 is a three-dimensional structure diagram of an embodiment of the present invention.

As shown in fig. 1-3, in the embodiment of the present invention, the mold capable of evacuating the mold cavity comprises: back template 1 and the back mould benevolence of fixing in back template 1, the back mould benevolence includes: a core insert 3 and a core seat 4. And the parting surface of the mold core insert 3 is provided with an inclined surface 5 for molding a product. The first end of the inclined plane 5 is higher than the second end of the inclined plane, at least one exhaust insert 6 is embedded in the first end of the inclined plane 5, and the top end face of the exhaust insert 6 is flush with the inclined plane 5. The outer wall of the rear template 1 is provided with vacuum generators 7 which are in one-to-one correspondence with the exhaust inserts 6, the vacuum generators 7 are communicated with the bottoms of the exhaust inserts 6 corresponding to the vacuum generators through air passages 8, and the air passages 8 are formed in the rear template 1 and the rear mold core. The exhaust insert 6 is composed of a plurality of T-shaped inserts 9, the T-shaped inserts 9 are connected in series through a bolt 10, the length of the bolt 10 is smaller than the total thickness of the T-shaped inserts 9, the bolt 10 and the T-shaped inserts 9 are excessively matched, the T-shaped inserts 9 can be preassembled into the exhaust insert 6, the exhaust insert 6 is installed in the mold core insert 3, and assembly is more convenient.

When moulding plastics, start vacuum generator 7, the gas of higher department in the shaping cavity is under vacuum generator 7's effect, through the clearance between each T type insert 9 to and, the clearance between T type insert 9 and mould benevolence mold insert 3 flows into gas circuit 8, discharges through gas circuit 8 again, thereby in time with the gas discharge of the higher position in the shaping cavity, the gas trapping phenomenon that significantly reduces, the structural commonality of exhaust mold insert 6 is good moreover, mold processing is more convenient, manufacturing cost is lower.

As shown in fig. 2, the mold core insert 3 is provided with a T-shaped through hole, the top end of the exhaust insert 6 is disposed in the T-shaped through hole, the bottom end of the exhaust insert 6 abuts against the top end surface of the mold core seat 4, and the gas path 8 is disposed in the back mold plate 1, the mold core seat 4 and the mold core insert 3, so that the exhaust insert 6 is fixed, the exhaust insert 6 is very convenient to mount, and the gas path 8 is also convenient to process.

Further, in this embodiment, as shown in fig. 2, a V-shaped gas collecting groove 11 communicated with the gas path 8 is formed in the top end surface of the mold insert seat 4, the bottoms of the T-shaped inserts 9 are located above the V-shaped gas collecting groove 11, by arranging the V-shaped gas collecting groove 11, the gas guiding area between the gas path 8 and each T-shaped insert 9 gap is increased, the gas flow can be rapidly collected in the V-shaped gas collecting groove 11 and then discharged through the gas path 8, and the exhaust efficiency is improved.

Further, in the present embodiment, as shown in fig. 2, a sealing rubber ring 12 is disposed on a joint surface between the mold core seat 4 and the rear mold plate 1 and is sleeved on an outer peripheral side of the air path 8 to prevent the air path 8 from leaking air and reducing the exhaust efficiency.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all be in the utility model discloses a under the design, utilize the equivalent structure transform of what the content of the description and the attached drawing was done, or direct/indirect application all includes in other relevant technical field the utility model discloses a patent protection is within range.

Claims

1. A mold for evacuating a mold cavity, comprising: the mould comprises a rear template and a rear mould core fixed in the rear template, wherein a parting surface of the rear mould core is provided with an inclined surface for forming a product; the exhaust device is characterized in that the first end of the inclined plane is higher than the second end of the inclined plane, at least one exhaust insert is embedded in the first end of the inclined plane, and the top end face of the exhaust insert is flush with the inclined plane; the outer wall of the rear template is provided with vacuum generators which correspond to the exhaust inserts one by one, the vacuum generators are communicated with the bottoms of the exhaust inserts corresponding to the vacuum generators through gas paths, and the gas paths are arranged in the rear template and the rear mold core.

2. The mold of claim 1, wherein the venting insert comprises a plurality of T-inserts, the plurality of T-inserts being connected in series by a plug, the length of the plug being less than the total thickness of the plurality of T-inserts, and the plug and the T-inserts being over-mated.

3. The apparatus of claim 2, wherein the back mold core comprises: mould benevolence mold insert and mould benevolence seat, T type through-hole has been seted up to the mould benevolence mold insert, arrange in the top of exhaust mold insert in the T type through-hole, the bottom of exhaust mold insert supports the top end surface of mould benevolence seat, the gas circuit is seted up in back template, mould benevolence seat and mould benevolence mold insert.

4. The mold according to claim 3, wherein the top end surface of the mold core base is provided with a V-shaped gas collection groove communicated with the gas path, and the bottoms of the T-shaped inserts are located above the V-shaped gas collection groove.

5. The mold according to claim 3, wherein a sealing rubber ring is provided on the surface of the mold core seat that contacts the back mold plate, the sealing rubber ring being fitted around the periphery of the air passage.