CN214026986U

CN214026986U - Sprue structure for injection mold

Info

Publication number: CN214026986U
Application number: CN202022814757.8U
Authority: CN
Inventors: 杨钱巍
Original assignee: Wuxi Xinmao Plastic Packaging Machinery Co ltd
Current assignee: Wuxi Xinmao Plastic Packaging Machinery Co ltd
Priority date: 2020-11-29
Filing date: 2020-11-29
Publication date: 2021-08-24
Anticipated expiration: 2030-11-29

Abstract

The utility model discloses a runner structure for injection mold, including fixed end cover and first flow channel pipe, first flow channel pipe installation is fixed on the lower extreme intermediate position of fixed end cover. The utility model discloses a second runner pipe and the inside of taper sleeve pipe link up, form the restriction runner that the entry is greater than the export like this, thereby can effectively dissolve the material to plastics and accelerate and rub, make the temperature of melt rise, reduce viscosity and improve shear rate, reach ideal flow state, the later stage of being convenient for like this flows, and effectively avoid the refluence of melt, and link up through the inside of toper runner pipe and sprue cover, inside melt is convenient for carry like this, and the inside formation entry of toper runner pipe and sprue cover is less than the non-restriction runner of export, be convenient for like this fill the shaping chamber of mould, make difficult production plastics vortex, phenomenon such as fibre is in disorder, can make the melt evenly fill shaping chamber each part, final injection moulding product's shaping quality has effectively been improved.

Description

Sprue structure for injection mold

Technical Field

The utility model relates to an injection mold technical field especially relates to a runner structure for injection mold.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. When the injection mold is used for injection molding, a sprue structure of the injection mold is needed, so that a workpiece can be conveniently injection molded.

The existing device also has the following defects: at present, when pouring, the situation of backflow easily appears in the pouring gate structure of the existing injection mold, and the problem of defective products is easily generated during casting molding.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pouring gate structure for an injection mold.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sprue structure for an injection mold comprises a fixed end cover and a first flow channel pipe, wherein the first flow channel pipe is fixedly arranged at the middle position of the lower end of the fixed end cover, a metal screw is arranged on the fixed end cover at the outer side of the first flow channel pipe, a first flow channel groove is arranged in the first flow channel pipe, the lower end of the first runner pipe is provided with a conical sleeve, the interior of the conical sleeve is provided with a short conical runner groove, the lower end of the conical sleeve is provided with a second flow channel pipe, the outer sides of the two ends of the second flow channel pipe are provided with outer ring grooves, a second flow channel groove is arranged in the second flow channel pipe, a conical flow channel pipe is arranged on the outer side of the two ends of the second flow channel pipe, the inner part of the conical runner pipe is provided with a conical runner groove, the outer end of the conical runner pipe is provided with a sprue bush, and a sprue groove is formed in the sprue bush.

Furthermore, the fixed end cover comprises a metal outer ring, a fixed screw hole and an inner sleeve block, the inner sleeve block is arranged inside the metal outer ring, the fixed screw hole is formed in the inner side of the metal outer ring, and the inner sleeve block is connected to the first flow channel pipe.

Further, the first flow channel pipe is cylindrical, and the diameter of the first flow channel pipe is 20 mm.

Furthermore, the second flow channel pipe and the conical sleeve are fixedly connected in a welding mode, and the second flow channel pipe is communicated with the conical sleeve.

Furthermore, the number of the conical flow passage pipes is four, and the conical flow passage pipes are symmetrically welded and fixed on the outer sides of the two ends of the second flow passage pipe.

Furthermore, the conical runner pipe and the sprue bush are fixedly connected in a welding mode, and the conical runner pipe is communicated with the interior of the sprue bush.

Further, the first flow channel pipe is an axial center, and two ends of the first flow channel pipe are in a symmetrical state.

Compared with the prior art, the utility model provides a runner structure for injection mold possesses following beneficial effect:

1. this a runner structure for injection mold link up through the inside of second runner pipe and taper sleeve, forms the restriction runner that the entry is greater than the export like this to can effectively accelerate and rub plastics melting stock, make the temperature rise of melt, reduce viscosity and improve shear rate, reach ideal flow state, the later stage of being convenient for like this flows, and effectively avoids the refluence of melt.

2. This a runner structure for injection mold link up through the inside of toper runner pipe and runner cover, and inside melt is convenient for carry like this, and the inside formation entry of toper runner pipe and runner cover is less than the non-restriction runner of export moreover, is convenient for fill the molding cavity of mould like this for be difficult for producing the plastics vortex, phenomenon such as fibre in disorder, can make the melt evenly fill each part in molding cavity, effectively improved final injection moulding product's shaping quality.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic perspective view of a gate structure for an injection mold according to the present invention;

fig. 2 is an enlarged schematic structural diagram of a region a of a gate structure for an injection mold according to the present invention;

fig. 3 is a schematic structural view of a fixed end cover of a gate structure for an injection mold according to the present invention;

fig. 4 is a schematic diagram of a B-region enlarged structure of a gate structure of an injection mold according to the present invention.

In the figure: 1-fixed end cover, 101-metal outer ring, 102-fixed screw hole, 103-inner sleeve block, 2-metal screw, 3-second runner pipe, 4-sprue bush, 5-tapered runner pipe, 6-outer side ring groove, 7-first runner groove, 8-first runner pipe, 9-tapered sleeve, 10-short tapered runner groove, 11-second runner groove, 12-tapered runner groove and 13-pouring gate groove.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example one

Referring to fig. 1 to 3, a gate structure for an injection mold comprises a fixed end cover 1 and a first flow channel pipe 8, the first flow channel pipe 8 is fixedly installed at a middle position of a lower end of the fixed end cover 1, a metal screw 2 is arranged on the fixed end cover 1 at an outer side of the first flow channel pipe 8, a first flow channel groove 7 is arranged in the first flow channel pipe 8, a tapered sleeve 9 is arranged at a lower end of the first flow channel pipe 8, a short tapered flow channel groove 10 is arranged in the tapered sleeve 9, a second flow channel pipe 3 is arranged at a lower end of the tapered sleeve 9, outer ring grooves 6 are arranged at outer sides of two ends of the second flow channel pipe 3, a second flow channel groove 11 is arranged in the second flow channel pipe 3, tapered flow channel pipes 5 are arranged at outer sides of two ends of the second flow channel pipe 3, a tapered flow channel groove 12 is arranged in the tapered flow channel pipe 5, a gate sleeve 4 is arranged at an outer end of the tapered flow channel pipe 5, the inside of runner cover 4 is provided with runner recess 13, first runner pipe 8 is through the inboard metal screw 2 of fixed end cover 1, make and be convenient for fix on injection mold, be difficult for droing when using like this, and when moulding plastics, through first runner pipe 8, second runner pipe 3, taper sleeve 9, the inside first runner groove 7 of taper runner pipe 5 and runner cover 4, second runner groove 11, short taper runner groove 10, taper runner groove 12 and runner recess 13, thereby the pouring work piece of being convenient for uses.

The utility model discloses in, fixed end cover 1 includes metal outer loop 101, fixed screw 102 and inside cover piece 103, the inside of metal outer loop 101 is provided with inside cover piece 103, the inboard of metal outer loop 101 is provided with fixed screw 102, inside cover piece 103 is connected on first flow channel pipe 8, the inside cover piece 103 welded fastening of fixed end cover 1 is connected on first flow channel pipe 8, be difficult for droing when using like this, and when fixed, through the inside fixed screw 102 of metal outer loop 101, make and be convenient for fix the use through metal screw 2.

The utility model discloses in, first flow channel pipe 8 is cylindrical, and first flow channel pipe 8's diameter is 20mm to when the pouring, make inside material be convenient for the pouring use, effectively reduce the waste material.

The utility model discloses in, second runner pipe 3 and taper sleeve 9 are through welded mode fixed connection, and second runner pipe 3 and taper sleeve 9's inside link up, when using, link up because of second runner pipe 3 and taper sleeve 9's inside, it is greater than the restriction runner of export to form the entry like this, thereby can effectively to plastics solution material accelerate and rub, make the temperature of melt rise, reduce viscosity and improve shear rate, reach ideal flow state, the later stage of being convenient for flows like this, and effectively avoid the refluence of melt.

The utility model discloses in, toper runner pipe 5 is provided with four altogether, and toper runner pipe 5 symmetry welded fastening is on the both ends outside of second runner pipe 3, when using, because of four toper runner pipe 5 symmetry welded fastening on the both ends outside of second runner pipe 3 to the high-efficient shaping work piece of being convenient for uses.

The utility model discloses in, first flow channel pipe 8 is the axle center, and the both ends of first flow channel pipe 8 are the symmetric state, when the pouring, because of first flow channel pipe 8 is the axle center to the both ends of first flow channel pipe 8 are the symmetric state, and are more stable high-efficient when pouring through first flow channel pipe 8 like this.

The working principle is as follows: during injection molding, the first runner pipe 8, the second runner pipe 3, the taper sleeve 9, the taper runner pipe 5 and the first runner groove 7, the second runner groove 11, the short taper runner groove 10, the taper runner groove 12 and the gate groove 13 in the gate sleeve 4 are used for facilitating the pouring of a workpiece.

Example two

Referring to fig. 1 and 4, a gate structure for an injection mold according to the present embodiment, compared to the first embodiment, further includes a tapered runner pipe 5 and a gate sleeve 4 fixedly connected by welding, and the tapered runner pipe 5 and the gate sleeve 4 are internally communicated.

The working principle is as follows: when using, link up because of the inside of toper runner pipe 5 and runner cover 4, inside melt is convenient for carry like this, and the inside formation entry of toper runner pipe 5 and runner cover 4 is less than the non-restriction runner of export moreover, is convenient for fill the molding cavity of mould like this for be difficult for producing the plastic vortex, phenomenon such as wadding is in disorder, can make the melt evenly fill each part of molding cavity, has effectively improved the shaping quality of final injection moulding product.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a runner structure for injection mold, includes fixed end cover (1) and first flow channel pipe (8), its characterized in that, first flow channel pipe (8) installation is fixed on the lower extreme intermediate position of fixed end cover (1), the outside of first flow channel pipe (8) is located fixed end cover (1) and is provided with metal screw (2), the inside of first flow channel pipe (8) is provided with first flow channel groove (7), the lower extreme of first flow channel pipe (8) is provided with taper sleeve pipe (9), the inside of taper sleeve pipe (9) is provided with short taper flow channel groove (10), the lower extreme of taper sleeve pipe (9) is provided with second flow channel pipe (3), the both ends outside of second flow channel pipe (3) is provided with outside annular (6), the inside of second flow channel pipe (3) is provided with second flow channel groove (11), the both ends outside of second flow channel pipe (3) is provided with taper flow channel pipe (5), the inner part of the conical runner pipe (5) is provided with a conical runner groove (12), the outer end of the conical runner pipe (5) is provided with a sprue bush (4), and the inner part of the sprue bush (4) is provided with a sprue groove (13).

2. The gate structure for an injection mold according to claim 1, wherein the fixing end cap (1) comprises a metal outer ring (101), a fixing screw hole (102) and an inner sleeve block (103), the inner portion of the metal outer ring (101) is provided with the inner sleeve block (103), the inner side of the metal outer ring (101) is provided with the fixing screw hole (102), and the inner sleeve block (103) is connected to the first runner pipe (8).

3. Gate structure for an injection mould according to claim 1, characterised in that the first flow channel tube (8) is cylindrical and that the diameter of the first flow channel tube (8) is 20 mm.

4. The gate structure for injection mold according to claim 1, wherein the second flow channel tube (3) and the tapered sleeve (9) are fixedly connected by welding, and the second flow channel tube (3) and the tapered sleeve (9) are internally penetrated.

5. The gate structure for an injection mold according to claim 1, wherein the number of the tapered runner pipes (5) is four, and the tapered runner pipes (5) are symmetrically welded and fixed on the outer sides of both ends of the second runner pipe (3).

6. A gate structure for an injection mold according to claim 1, wherein the tapered runner pipe (5) and the gate housing (4) are fixedly connected by welding, and the tapered runner pipe (5) and the gate housing (4) are internally communicated.

7. The gate structure for injection mold according to claim 1, wherein the first flow channel pipe (8) is axial center, and both ends of the first flow channel pipe (8) are in a symmetrical state.