CN212707818U

CN212707818U - Injection molding device capable of avoiding residual point gate

Info

Publication number: CN212707818U
Application number: CN202021290969.4U
Authority: CN
Inventors: 朱文亚
Original assignee: Suzhou Xinyou Mould Technology Co ltd
Current assignee: Suzhou Xinyou Mould Technology Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-03-16
Anticipated expiration: 2030-07-03

Abstract

The utility model provides an avoid remaining injection moulding device of some runner, including front mould mechanism and back mould mechanism, front mould mechanism includes the front mould panel, is provided with the holding ring in the front mould panel and draws the material round pin, is provided with the runner in the holding ring, draws material round pin top fixed mounting in the front mould panel, the runner is withstood to the bottom, and the runner bottom is provided with some runner, and some runner is the toper, and the lateral wall of some runner is 25 degrees with the contained angle of self axis. The utility model provides a pair of avoid remaining injection moulding device of spot gate increases the tapering of spot gate, and the direct root that advances the department of gluing breaks the sizing material, avoids the spot gate to remain.

Description

Injection molding device capable of avoiding residual point gate

Technical Field

The utility model relates to an injection moulding device particularly, relates to an avoid remaining injection moulding device of point gate.

Background

Existing dies can generally be divided into two-plate dies and three-plate dies, the three-plate dies usually consisting of a stripper plate, a static die plate and a pusher plate. After the injection molding is completed, the stub bar on the stripper plate needs to be removed for the next production.

At present, the injection mold industry is undergoing continuous technical innovation and transformation, and in a three-plate mold adopting a point type sprue bush, a pulling pin is used for temporarily fixing a runner of a point sprue part on a discharging plate and cutting off a sprue and a molded product. The existing point gate has poor separation effect due to the problem of taper, and the bottom of the existing point gate is remained.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an avoid remaining injection moulding device of some runner has solved some runner bottom and has advanced gluey department and can remain the problem.

For this, the utility model provides an avoid remaining injection moulding device of some runner, including front mould mechanism and back mould mechanism, front mould mechanism includes the front mould panel, is provided with the holding ring in the front mould panel and draws the material round pin, is provided with the runner in the holding ring, draws material round pin top fixed mounting in the front mould panel, the runner is drawn to the bottom back-pull, and the runner bottom is provided with some runner, and some runner is the toper, and the lateral wall of some runner is 25 degrees with the contained angle of self axis.

Further, the front mold mechanism further comprises a stripper plate and a front template, the front mold mechanism is sequentially provided with a front mold panel, the stripper plate and the front template from top to bottom, and the bottom of the front template is provided with a front mold core.

Furthermore, the rear die mechanism comprises a rear die panel and a rear die plate, square iron is arranged between the rear die plate and the rear die panel, and a rear die core corresponding to the front die core is arranged on the rear die plate.

Furthermore, the bottom of the spot gate is a plane, and the rear mold core is provided with a wave point corresponding to the spot gate.

Further, the depth of the wave point is 0.5 MM.

Furthermore, the back template is also provided with symmetrically arranged slide blocks which reciprocate on the back template along the horizontal direction.

The utility model provides an avoid remaining injection moulding device of some runner, when moulding plastics, preceding die mechanism and back die mechanism compound die, the holding ring makes mould and injection molding machine big gun mouth concentric, through the runner, carries out the injecting glue in some runner department to the product between preceding mould benevolence and the back mould benevolence. After the injection molding is finished, the front mold mechanism and the rear mold mechanism are separated, the point gate is separated from a product under the action of the material pulling pin, the included angle between the side wall of the point gate and the axis of the point gate is 25 degrees, the glue material is conveniently and directly broken at the root, and no residue exists at the point dispensing opening. The side wall of the point gate is preferably at an angle of 25 degrees to its axis, and may be 30 or 35 degrees. And the front die mechanism and the rear die mechanism are used for die separation, and the sliding block horizontally moves under the action of the guide rod to demould the side wall of the product.

The utility model provides a pair of avoid remaining injection moulding device of spot gate increases the tapering of spot gate, and the direct root that advances the department of gluing breaks the sizing material, avoids the spot gate to remain.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural diagram of an injection molding apparatus for avoiding a residual gate in an embodiment of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1 and 2, the embodiment of the utility model provides a pair of avoid remaining injection moulding device of some runner, including front mould mechanism 1 and back mould mechanism 2, front mould mechanism 1 includes front mould panel 11, is provided with holding ring 12 and draws material round pin 13 in the front mould panel 11, is provided with runner 14 in the holding ring 12, draws material round pin 13 top fixed mounting in front mould panel 11, the bottom pulls down and holds runner 14, and runner 14 bottom is provided with some runner 15, and some runner 15 is the toper, and the lateral wall of some runner 15 is 25 degrees with the contained angle of self axis.

Specifically, referring to fig. 1 and 2, the front mold mechanism 1 further includes a stripper plate 16 and a front mold plate 17, the front mold mechanism 1 is sequentially provided with a front mold plate 11, the stripper plate 16 and the front mold plate 17 from top to bottom, and a front mold core 171 is disposed at the bottom of the front mold plate 17.

Specifically, referring to fig. 1 and 2, the rear mold mechanism 2 includes a rear mold plate 21 and a rear mold plate 22, a square iron 23 is disposed between the rear mold plate 22 and the rear mold plate 21, and a rear mold core 24 corresponding to the front mold core 171 is disposed on the rear mold plate 22.

Specifically, referring to fig. 1 and 2, the back mold plate 22 is further provided with symmetrically arranged sliders 25, and the sliders 25 reciprocate on the back mold plate 22 in a horizontal direction.

Example two:

referring to fig. 1 and fig. 2, an injection molding apparatus for avoiding a residual pin gate according to an embodiment of the present invention is shown, and the present embodiment further adopts the following technical solutions as improvements on the basis of the above embodiment: the bottom of the point gate 15 is a plane, and the rear mold core 24 is provided with a wave point 241 corresponding to the point gate 15; the depth of the wave point 241 is 0.5 MM.

The glue inlet bottom of the glue dispensing port is a plane and is matched with a 0.5MM wave point on the rear mold core, so that the problems of large pulling force, difficulty in breaking and easiness in remaining when the bottom is a spherical surface are solved.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides an avoid remaining injection moulding device of some runner, its characterized in that, includes front mould mechanism (1) and back mould mechanism (2), front mould mechanism (1) includes front mould panel (11), be provided with holding ring (12) and drawing material round pin (13) in front mould panel (11), be provided with runner (14) in holding ring (12), draw material round pin (13) top fixed mounting in front mould panel (11), the bottom is pulled out and is pulled said runner (14), runner (14) bottom is provided with some runner (15), some runner (15) are the toper, the lateral wall of some runner (15) is 25 degrees with the contained angle of self axis.

2. An injection molding device for avoiding residual sprue according to claim 1, wherein the front mold mechanism (1) further comprises a stripper plate (16) and a front mold plate (17), the front mold mechanism (1) is provided with the front mold plate (11), the stripper plate (16) and the front mold plate (17) from top to bottom, and a front mold core (171) is arranged at the bottom of the front mold plate (17).

3. An injection molding apparatus for avoiding gate residue according to claim 2, wherein the rear mold mechanism (2) comprises a rear mold panel (21) and a rear mold plate (22), a square iron (23) is disposed between the rear mold plate (22) and the rear mold panel (21), and a rear mold core (24) corresponding to the front mold core (171) is disposed on the rear mold plate (22).

4. An injection molding apparatus for avoiding gate residue as claimed in claim 3, wherein the bottom of the gate (15) is a plane, and the rear mold core (24) is provided with wave points (241) corresponding to the gate (15).

5. An injection molding apparatus for avoiding residual spot runners according to claim 4, wherein the depth of the wave points (241) is 0.5 MM.

6. An injection molding apparatus for avoiding sprue residue as claimed in claim 3 wherein said back mold plate (22) is further provided with symmetrically arranged slides (25), said slides (25) reciprocating horizontally on said back mold plate (22).