CN215825852U

CN215825852U - Ox horn glue-feeding gate easy demoulding structure

Info

Publication number: CN215825852U
Application number: CN202122253755.0U
Authority: CN
Inventors: 杨国润
Original assignee: Kunshan Goldberry Electronics Co ltd
Current assignee: Kunshan Goldberry Electronics Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-02-15
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses an ox horn glue feeding gate easy demoulding structure, which comprises: draw the material needle and set up the ox horn runner that advances gluey runner and be the ox horn shape in the mould, ox horn runner intercommunication is in advance to glue between the die cavity that is used for the shaping product in runner and the mould, just the cross sectional dimension of ox horn runner certainly advance gluey runner orientation the die cavity reduces gradually, the lower extreme that draws the material needle is provided with anti-disengaging structure, anti-disengaging structure is located advance gluey in the runner, be used for with the stub bar that advances in the gluey runner is connected, draw the material needle can be in the die sinking in-process will the stub bar is followed advance gluey runner with upwards pull out in the ox horn runner. This ox horn advances gluey runner and easily takes off die structure adopts ox horn to advance gluey mode, can effectively avoid producing the runner vestige at product appearance face, pulls out in advancing gluey runner and ox horn runner through drawing the stub bar pulling stub bar, takes out the stub bar smoothly, effectively avoids the stub bar to produce the fracture in ox horn runner, and the orderly of guarantee production goes on.

Description

Ox horn glue-feeding gate easy demoulding structure

Technical Field

The utility model relates to the technical field of injection molds, in particular to an ox horn glue inlet gate easy demoulding structure.

Background

With the requirement on the quality of injection products becoming higher and higher, in order to avoid the generation of a glue inlet on the surface of the product, the glue inlet mode of the mold is generally designed into a submarine gate mode, so that gate marks cannot be generated on the appearance surface, and the horn glue inlet mode is a common submarine gate glue inlet mode.

In the process of injection molding products, the injection mold can generate a stub bar in the glue inlet flow channel, and the stub bar needs to be taken out every time the products are molded. At present, a traditional ox horn glue feeding structure generally adopts an ejector pin ejection mode, when a mold is opened, an ejector pin moves upwards, so that a stub bar of an ox horn runner connected with a sprue runner is subjected to a large ejection force, and the ox horn runner is bent and deformed and is separated from the mold. But to the injection moulding product that adopts the flexible glue material, because the stub bar texture is softer, the in-process that the thimble upwards pushed up pushes up to long and thin easily, leads to the stub bar to deviate from in can't following the ox horn runner, still has the stub bar in the ox horn runner to produce the fracture risk simultaneously, needs artifical assistance to get rid of, wastes time and energy, leads to production efficiency to reduce. Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.

Disclosure of Invention

The utility model aims to solve the problem of providing an easily demoulding structure of a horn glue inlet sprue so as to overcome the risk that a stub bar in a horn runner of a traditional horn glue inlet structure is difficult to eject and the stub bar is easy to break.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides a ox horn advances gluey runner structure of easily demoulding, includes: draw the material needle and set up the ox horn runner that advances gluey runner and be the ox horn shape in the mould, ox horn runner intercommunication is in advance to glue between the die cavity that is used for the shaping product in runner and the mould, just the cross sectional dimension of ox horn runner certainly advance gluey runner orientation the die cavity reduces gradually, the lower extreme that draws the material needle is provided with anti-disengaging structure, anti-disengaging structure is located advance gluey in the runner, be used for with the stub bar that advances in the gluey runner is connected, draw the material needle can be in the die sinking in-process will the stub bar is followed advance gluey runner with upwards pull out in the ox horn runner.

As a further improvement of the utility model, the anti-dropping structure is constructed to have a plurality of annular bosses arranged at intervals.

As a further improvement of the utility model, the size of the lower end of the pulling needle is reduced to form a stepped pulling head, the annular boss is arranged on the periphery of the pulling head, and the outer diameter of the annular boss is smaller than the outer diameter of the body of the pulling needle.

As a further improvement of the utility model, the ox horn glue feeding gate easy demoulding structure further comprises a fixed plate, an upper template and a stripper plate positioned between the fixed plate and the upper template, wherein the upper end of the material pulling needle is fixed on the fixed plate, and the lower end of the material pulling needle penetrates through the stripper plate and extends into the glue feeding runner positioned on the upper template.

As a further improvement of the utility model, the novel ox horn runner structure further comprises two symmetrically arranged ox horn inserts, and the ox horn runner is formed by encircling the ox horn-shaped grooves arranged on the two ox horn inserts.

As a further improvement of the utility model, the ox horn glue inlet gate easy demoulding structure further comprises an upper die core and a lower die core which are arranged at the bottom of the upper template, the upper die core and the lower die core surround to form the cavity, and the ox horn inserts are fixed on the lower die core, so that the ox horn runner is connected to the bottom of the cavity.

As a further improvement of the utility model, the ox horn flow passage is provided with two symmetrical and two material pulling needles are correspondingly arranged.

The utility model has the beneficial effects that: the utility model provides a bull horn glue inlet gate easy demoulding structure, which adopts a bull horn glue inlet mode, can effectively avoid the generation of gate marks on the appearance surface of a product, ensures the appearance of the product, and is characterized in that a glue inlet flow passage and a bull horn flow passage are arranged in a mould, the bull horn flow passage is communicated between the glue inlet flow passage and a cavity, the lower end of a material pulling needle with an anti-falling structure extends into the glue inlet flow passage, when the mould is opened, the material pulling needle pulls a material head to enable the material head to generate elastic deformation and move upwards synchronously, and finally the material head is pulled upwards from the glue inlet flow passage and the bull horn flow passage, so that the material head is taken out smoothly, the material head is effectively prevented from being broken in the bull horn flow passage, and the ordered production is ensured.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged view of A of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of a material pulling needle, a glue feeding runner, a horn runner and a horn insert of the present invention;

fig. 4 is a perspective view of the puller pin of the present invention.

The following description is made with reference to the accompanying drawings:

1-pulling a material needle; 101-annular boss;

102-pulling the stub bar; 2-enter the glue runner;

3-ox horn runner; 4-a cavity;

5-fixing plate; 6-upper template;

7-stripper plate; 8-oxhorn insert;

9-upper die core; 10-lower mold core.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 4, the present invention provides an easy demoulding structure of a bead gate, which can be applied to an injection mold for a soft rubber material product, and includes: the material pulling device comprises a material pulling needle 1, a glue inlet runner 2 and a horn-shaped runner 3, wherein the glue inlet runner 2 and the horn-shaped runner are arranged in a mold. The mould is provided with a fixing plate 5, a stripper plate 7, an upper mould plate 6, an upper mould kernel 9, a lower mould kernel 10 and a lower mould plate which are sequentially overlapped from top to bottom, wherein the upper mould kernel 9 is fixedly arranged at the bottom of the upper mould plate 6, and the glue inlet flow channel 2 is formed by holes formed in the upper mould plate 6 and the upper mould kernel 9. A sprue bush is mounted on the fixed plate 5, the lower end of the sprue bush penetrates through the stripper plate 7 to be communicated with the glue inlet flow channel 2, and glue is injected into the glue inlet flow channel 2 from the sprue bush. The lower mold core 10 is fixedly arranged on the lower template, and the lower mold core 10 and the upper mold core 9 are matched to surround to form a cavity 4 for forming a product. The lower die core 10 is symmetrically and fixedly provided with two ox horn inserts 8, and the ox horn runner 3 is formed by encircling ox horn-shaped grooves arranged on the two ox horn inserts 8. The ox horn runner 3 is communicated between the glue inlet runner 2 and the cavity 4, and the section size of the ox horn runner 3 is gradually reduced from the glue inlet runner 2 to the cavity 4. Wherein, ox horn runner 3 is connected in the bottom of die cavity 4, can effectively avoid producing the runner vestige at product outward appearance face, guarantees the aesthetic property of product outward appearance.

Referring to fig. 2 and 3, the upper end of the pulling needle 1 is fixed on the fixing plate 5, and the lower end of the pulling needle 1 penetrates through the stripper plate 7 and extends into the glue inlet flow channel 2 on the upper die plate 6. And the lower end of the material pulling needle 1 is provided with an anti-disengaging structure, and the anti-disengaging structure is positioned in the glue inlet flow passage 2 and is used for being connected with a stub bar in the glue inlet flow passage 2. In the die sinking in-process, draw the stub bar 1 to the rebound, and to the stub bar in the runner have ascending pulling force, because the sizing material adopts be the flexible glue material, the texture is softer, make to draw stub bar 1 can stimulate the stub bar and produce deformation in ox horn runner 3, and follow synchronous rebound, finally upwards pull out in advancing gluey runner 2 and ox horn runner 3, take out the stub bar smoothly, effectively avoid the stub bar to produce the fracture in ox horn runner, the orderly of guarantee production goes on.

Preferably, the anti-slip structure is configured to have three annular bosses 101 arranged at intervals. The size of the lower end of the pulling needle 1 is reduced to form a stepped pulling head 102, the end of the pulling head 102 is in a cone shape, the annular boss 101 is arranged on the periphery of the pulling head 102, and the outer diameter of the annular boss 101 is smaller than the outer diameter of the body of the pulling needle 1. Through adopting this structural design, can avoid drawing that the stub bar is moved in-process to the upwards pulling stub bar of needle 1 and take place to separate with the stub bar, stop the stub bar and appear not taking out the condition.

Wherein, the ox horn runner 3 is provided with two symmetries, and corresponding is provided with two and draws material needle 1.

Further explaining the embodiment, in the product injection molding process, a hot-melt adhesive material is injected into the adhesive inlet flow channel 2 from the sprue bush, enters the cavity 4 through the ox horn flow channel 3 and is cooled and molded, and then, material heads are formed in the adhesive inlet flow channel 2 and the ox horn flow channel 3; in the die sinking process, firstly, an external power device drives a lower fixing plate 5 and a stripper plate 7 to synchronously move upwards, a pulling needle 1 moves upwards along with the pulling needle, the connecting part of the pulling needle and a product is disconnected by pulling a stub bar, the pulling stub bar is deformed in a ox horn flow channel 3 and then continuously moves upwards to pull out the stub bar, then the fixing plate 5 drives the pulling needle 1 to continuously move relative to the stripper plate 7, the stub bar is deformed under the action of the stripper plate 7 to be separated from the pulling needle 1, and the stub bar is taken out; and finally, the upper template 6 moves upwards relative to the lower template to be opened, and the product is ejected out through the ejector pins.

Therefore, according to the ox horn glue inlet gate easy demoulding structure, a ox horn glue inlet mode is adopted, gate marks can be effectively prevented from being generated on the appearance surface of a product, the appearance of the product is ensured, the glue inlet flow channel and the ox horn flow channel are arranged in a mould, the ox horn flow channel is communicated between the glue inlet flow channel and a cavity, the lower end of the material pulling needle with the anti-falling structure extends into the glue inlet flow channel, the material pulling needle pulls the material head to enable the material head to generate elastic deformation and move upwards synchronously during mould opening, the material head is finally pulled upwards from the glue inlet flow channel and the ox horn flow channel, the material head is taken out smoothly, the material head is effectively prevented from being broken in the ox horn flow channel, and the ordered production is guaranteed.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the utility model, which can be embodied in many different forms than described herein, and therefore the utility model is not limited to the specific embodiments disclosed above. And that those skilled in the art may, using the methods and techniques disclosed above, make numerous possible variations and modifications to the disclosed embodiments, or modify equivalents thereof, without departing from the scope of the claimed embodiments. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a ox horn advances gluey runner structure of easily demoulding which characterized in that includes: draw material needle (1) and set up advance gluey runner (2) in the mould and be ox horn shape ox horn runner (3), ox horn runner (3) intercommunication is in advance gluey runner (2) and mould in be used for between die cavity (4) of shaping product, just the cross sectional dimension of ox horn runner (3) certainly advance gluey runner (2) orientation die cavity (4) dwindle gradually, the lower extreme that draws material needle (1) is provided with anti-disengaging structure, anti-disengaging structure is located advance gluey runner (2) in, be used for with the stub bar that advances in gluey runner (2) is connected, draw material needle (1) can be in the die sinking in-process will the stub bar is followed advance gluey runner (2) with upwards pull out in ox horn runner (3).

2. The ox horn glue inlet gate easy demoulding structure according to claim 1, which is characterized in that: the anti-falling structure is constructed to be provided with a plurality of annular bosses (101) arranged at intervals.

3. The ox horn glue inlet gate easy demoulding structure as claimed in claim 2, wherein: the size of the lower end of the pulling needle (1) is reduced to form a stepped pulling head (102), the annular boss (101) is arranged on the periphery of the pulling head (102), and the outer diameter of the annular boss (101) is smaller than the outer diameter of the body of the pulling needle (1).

4. The ox horn glue inlet gate easy demoulding structure according to claim 1, which is characterized in that: the glue injection mold is characterized by further comprising a fixing plate (5), an upper die plate (6) and a stripping plate (7) located between the fixing plate (5) and the upper die plate (6), wherein the upper end of the material pulling needle (1) is fixed on the fixing plate (5), and the lower end of the material pulling needle (1) penetrates through the stripping plate (7) and extends to a position on the upper die plate (6) in the glue inlet flow channel (2).

5. The ox horn glue inlet gate easy demoulding structure as claimed in claim 4, wherein: the horn runner is characterized by further comprising two horn inserts (8) which are symmetrically arranged, and the horn runner (3) is formed by encircling two horn-shaped grooves formed in the horn inserts (8).

6. The ox horn glue inlet gate easy demoulding structure as claimed in claim 5, wherein: the injection molding die is characterized by further comprising an upper die core (9) and a lower die core (10) which are arranged at the bottom of the upper die plate (6), the upper die core (9) and the lower die core (10) are surrounded to form the die cavity (4), and the ox horn insert (8) is fixed on the lower die core (10) so that the ox horn flow passage (3) is connected to the bottom of the die cavity (4).

7. The ox horn glue inlet gate easy demoulding structure according to claim 1, which is characterized in that: the ox horn runner (3) is provided with two symmetrical pulling needles (1).