CN210148623U - Automatic mechanism and injection mold that drop in mouth of a river - Google Patents

Abstract

The utility model belongs to the technical field of injection-molded machining, the utility model provides an automatic mechanism that drops in mouth of a river and contain the automatic injection mold who drops in this mouth of a river mechanism, the mouth of a river automatic mechanism that drops includes mouth of a river board, mouth of a river mold insert, first mouth of a river crochet hook and two second mouth of a river crochet hooks, and two second mouth of a river crochet hooks are located the both sides of advancing the jiao kou, and every second mouth of a river crochet hook all passes the mouth of a river board and extends to the passageway of advancing of mouth of a river board lower extreme. Above-mentioned mouth of a river automatic mechanism that drops, during the die sinking, with injection mold's cope match-plate pattern and mouth of a river board part earlier, advance gluey passageway and advance the disconnection of three mouth of a river that gluey mouthful formed, the mouth of a river that advances gluey mouthful department leaves the mouth of a river mold insert under the effect of first mouth of a river crochet hook, two mouths of a river that gluey passageway formed after the die sinking action was accomplished break away from the cope match-plate pattern, first mouth of a river crochet hook drops, the mouth of a river that advances gluey mouthful to form and product break away from the mould along with the thimble when the injection molding machine is ejecting.

Description

Automatic mechanism and injection mold that drop in mouth of a river

Technical Field

The utility model relates to an injection moulding processing technology field, in particular to mouth of a river automatic mechanism and injection mold that drop.

Background

In the injection molding industry, a nozzle is a joint between a frame and a part formed when a mold is cast in a factory, and is also called a "sprue", which means an inlet and an outlet through which a heated liquid plastic flows. The parting surface refers to the contact surface of the front mold core and the rear mold core when the mold is closed. And (3) during injection molding, molten liquid plastic flows into the mold cavity through the water gap, and after the plastic is cooled, a product in the mold cavity is molded. When the product is demoulded, the water gap needs to be cut off from the product.

At present, a plurality of plastic injection molding products have residual water gaps after injection molding is finished, and the water gaps need a large amount of manual work for processing. Under the environment that cost of labor is increasing day by day, like this can greatly increased manufacturing cost, manual working mouth of a river moreover, the gimmick is inconsistent, can appear cutting the condition of lacking or unevenness to the injection moulding product, and easy fish tail injection moulding product leads to the injection moulding product directly to be scrapped moreover, causes the production cycle extension, and production quality is unstable, and machining efficiency is low, has reduced the performance of enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic mechanism and injection mold that drop in mouth of a river to solve current injection mold and lead to the problem that injection moulding product machining efficiency is low because of the mouth of a river is detached to the manual work.

The utility model provides an automatic mechanism that drops in mouth of a river, include the mouth of a river board, locate the mouth of a river mold insert of mouth of a river board lower extreme, locate the first mouth of a river crochet hook at mouth of a river mold insert middle part, and locate respectively two second mouth of a river crochet hooks of the upper end both sides of mouth of a river board, the middle part of mouth of a river board is equipped with into jiao kou, the upper end of mouth of a river mold insert extends to advance the lower extreme of jiao kou, first mouth of a river crochet hook one end is connected with injection mold's thimble bottom plate, and the other end passes the mouth of a river mold insert extends to in advancing jiao kou, two the second mouth of a river crochet hook is located advance the both sides of jiao kou, and every the second mouth of a river crochet hook all passes.

Above-mentioned mouth of a river automatic mechanism that drops, after the completion of the packing cooling of moulding plastics, with injection mold's cope match-plate pattern and mouth of a river board separately earlier, advance gluey passageway and advance the disconnection of three mouth of a river that gluey mouthful formed, the mouth of a river of advancing mouth of a river department leaves on the mouth of a river mold insert under the effect of first mouth of a river crochet hook, two mouths of a river that gluey passageway formed after the die sinking action was accomplished break away from the cope match-plate pattern, first mouth of a river crochet hook drops, the mouth of a river that advances gluey mouthful to form and product break away from the mould along with the thimble when the injection.

Further, the glue inlet is right opposite to the upper end of the water gap insert.

Further, the highest position of the water gap insert is smaller than the lowest position of the water gap plate.

Furthermore, two sides of the water gap insert are respectively provided with a flow passage.

Furthermore, a submarine gate communicated with the glue inlet channel is arranged on one side, located on the runner, of the water gap insert.

The utility model also provides an injection mold, include from last roof, cope match-plate pattern, front mold benevolence, back mould benevolence, lower bolster, square iron and the bottom plate that sets gradually extremely down, the upper end of bottom plate is equipped with thimble bottom plate and thimble panel in proper order, thimble panel's upper end is equipped with the thimble, injection mold still includes above-mentioned arbitrary one the mouth of a river automatic mechanism that drops, the mouth of a river board is located the cope match-plate pattern with between the roof, the bottom of mouth of a river mold insert support lean on in the lower bolster, its free end passes in proper order back mould benevolence front mold benevolence extends to the downside of mouth of a river board.

Further, the injection mold further comprises a nylon rubber plug arranged between the upper template and the lower template.

Furthermore, a sprue bushing is arranged at the position, corresponding to the water gap insert, of the top plate.

Furthermore, a pull rod is arranged on one side of the top plate, penetrates through the top plate and the water gap plate and extends into the upper template.

Drawings

Fig. 1 is a schematic sectional view of an embodiment of the present invention in an injection mold in a closed state;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at circle A;

fig. 3 is a schematic cross-sectional view of the injection mold shown in fig. 1 in an open state.

Description of the main element symbols:

the following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, an embodiment of the present invention provides an injection mold, including a top plate 10, an upper mold plate 20, a front mold core 30, a rear mold core 40, a lower mold plate 50, square iron 60, and a bottom plate 70, which are sequentially disposed from top to bottom, wherein an ejector pin bottom plate 71 and an ejector pin panel 72 are sequentially disposed on an upper end of the bottom plate 70, an ejector pin 73 is disposed on an upper end of the ejector pin panel 72, and the injection mold further includes any one of the above-mentioned automatic dropping mechanisms 80 for the nozzle.

Specifically, the automatic nozzle dropping mechanism 80 includes a nozzle plate 81, a nozzle insert 82 disposed at a lower end of the nozzle plate 81, a first nozzle crochet hook 83 disposed at a middle portion of the nozzle insert 82, and two second nozzle crochet hooks 84 disposed at two sides of an upper end of the nozzle plate 81, wherein a glue inlet is disposed at the middle portion of the nozzle plate 81, the upper end of the nozzle insert 82 extends to a lower end of the glue inlet, one end of the first nozzle crochet hook 83 is connected to an ejector base plate 71 of an injection mold, the other end of the first nozzle crochet hook 83 penetrates through the nozzle insert 82 and extends into the glue inlet, the two second nozzle crochet hooks 84 are disposed at two sides of the glue inlet, each second nozzle crochet hook 84 penetrates through the nozzle plate 81 and extends to a glue inlet passage at the lower end of the nozzle plate 81, the nozzle plate 81 is disposed between the upper mold plate 20 and the top plate 10, and a bottom end of the nozzle insert 82 abuts against the lower mold plate 50, the free end of the insert penetrates the rear mold core 40 and the front mold core 30 in sequence and extends to the lower side of the water gap plate 81.

Specifically, in order to realize automatic processing, the injection mold further comprises a nylon rubber plug 11 arranged between the upper template 20 and the lower template 50; a pull rod 12 for pulling the top plate 10 is disposed on one side of the top plate 10, the pull rod 12 passes through the top plate 10 and the nozzle plate 81 and extends into the upper mold plate 20, and a sprue 13 for injecting plastic is disposed at a position of the top plate 10 corresponding to the nozzle insert 82.

Above-mentioned injection mold, after the cooling is accomplished in the filling of moulding plastics under the effect of nylon plug 11 the cope match-plate pattern 20 with the mouth of a river board 81 parts earlier, advance two mouths of a river (first mouth of a river 200 and second mouth of a river 201) that the passageway formed and advance the mouth of a river (third mouth of a river 202) disconnection that the mouth of a river formed, advance mouth of a river (third mouth of a river 202) of mouth of a river and leave mouth of a river mold insert 82 under the effect of first mouth of a river crochet hook 83, first mouth of a river 200 and second mouth of a river 201 break away from cope match-plate pattern 20 after the die sinking action is accomplished, first mouth of a river crochet hook needle 83 drops, third mouth of a river 202 and product 100 break away from the mould along with thimble 73 when injection.

Specifically, in order to achieve the above technical effects, the glue inlet is aligned with the upper end of the water gap insert 82, and the highest position of the water gap insert 82 is smaller than the lowest position of the water gap plate 81, so that the plastic of the glue inlet can normally pass through the glue inlet and enter the glue inlet channels on both sides.

Specifically, in order to facilitate removal of a nozzle generated after molding, two sides of the nozzle insert 82 are respectively provided with a runner, and a submarine gate communicated with the glue inlet channel is arranged on one side of the nozzle insert 82, which is located on the runner, so that the size of the nozzle is reduced while a basic glue inlet function is realized, and the nozzle is removed.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (9)

1. The utility model provides an automatic mechanism that drops in mouth of a river, its characterized in that includes the mouth of a river board, locates the mouth of a river mold insert of mouth of a river board lower extreme, locates the first mouth of a river crochet hook at mouth of a river mold insert middle part and locate respectively two second mouth of a river crochet hooks of the upper end both sides of mouth of a river board, the middle part of mouth of a river board is equipped with into jiao kou, the upper end of mouth of a river mold insert extends to advance the lower extreme of jiao kou, first mouth of a river crochet hook one end is connected with injection mold's thimble bottom plate, and the other end passes the mouth of a river mold insert and extends to in the jiao kou, two the second mouth of a river crochet hook is located advance the both sides of jiao kou, and every the second mouth of a river.

2. The automatic nozzle drop mechanism of claim 1, wherein the glue inlet is directly opposite an upper end of the nozzle insert.

3. The nozzle automatic drop mechanism of claim 1, wherein the highest position of the nozzle insert is less than the lowest position of the nozzle plate.

4. The automatic nozzle drop mechanism of claim 1, wherein a flow channel is provided on each side of the nozzle insert.

5. The automatic nozzle dropping mechanism according to claim 4, wherein a submarine gate communicated with the glue inlet channel is arranged on one side of the nozzle insert located on the runner.

6. An injection mold comprises a top plate, an upper mold plate, a front mold core, a rear mold core, a lower mold plate, square iron and a bottom plate which are sequentially arranged from top to bottom, wherein an ejector pin bottom plate and an ejector pin panel are sequentially arranged at the upper end of the bottom plate, and an ejector pin is arranged at the upper end of the ejector pin panel.

7. The injection mold of claim 6, further comprising a nylon plug disposed between the upper platen and the lower platen.

8. An injection mold according to claim 6, wherein a sprue is provided at a location of said top plate corresponding to said nozzle insert.

9. An injection mold as claimed in claim 6, wherein a tie bar is provided on one side of said top plate, said tie bar extending through said top plate, said nozzle plate and into said top platen.

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