CN213107917U - Single-color injection mold without ejection mechanism - Google Patents

Single-color injection mold without ejection mechanism Download PDF

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Publication number
CN213107917U
CN213107917U CN202021422753.9U CN202021422753U CN213107917U CN 213107917 U CN213107917 U CN 213107917U CN 202021422753 U CN202021422753 U CN 202021422753U CN 213107917 U CN213107917 U CN 213107917U
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China
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mold
fixed
ejection
movable
guide
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CN202021422753.9U
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Chinese (zh)
Inventor
成兵
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Dongguan Zhanxin Electronic Technology Co ltd
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Dongguan Zhanxin Electronic Technology Co ltd
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Abstract

The utility model discloses a monochromatic injection mold without an ejection mechanism, which comprises a movable mold and a fixed mold, wherein the movable mold and the fixed mold are assembled to form a cavity, a plurality of material pulling guide pillars are fixedly arranged on the parting surface of the fixed mold, a plurality of guide holes corresponding to the material pulling guide rods are arranged on the parting surface of the movable mold, and the plurality of guide holes are communicated with the cavity through guide grooves; when the movable die and the fixed die are assembled, the protruding part of the material pulling guide post extends into the corresponding material guide hole in a clearance mode. The utility model discloses a movable mould and cover half divide the mould, directly pull out the product and the stub bar after the shaping, make the product drawing of patterns, reduce mould manufacturing cost.

Description

Single-color injection mold without ejection mechanism
Technical Field
The utility model belongs to the technical field of the mould, especially, relate to a monochromatic injection mold of no ejection mechanism.
Background
The common injection mold comprises a fixed mold seat, a fixed mold plate, a movable mold plate, an ejector pin plate, ejector pins, an ejector pin fixing plate, a movable mold seat and the like, wherein the ejector pin plate, the ejector pins and the ejector pin fixing plate jointly form an ejection mechanism of the mold, after the movable mold and the fixed mold are assembled, the injection molding machine injects liquid plastic into a cavity of the mold through a pouring system, after cooling, the movable mold and the fixed mold are separated, and the ejector pins of the ejection mechanism eject and demold a molded product.
Accordingly, the inventors have endeavored to design a single-shot injection mold to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the single-color injection mold without the ejection mechanism is provided, and a formed product and a stub bar are directly pulled out through mold splitting of the movable mold and the fixed mold, so that the product is demoulded, and the mold manufacturing cost is reduced.
In order to achieve the above object, the utility model discloses a technical scheme who adopts is:
a single-color injection mold without an ejection mechanism comprises a movable mold and a fixed mold, wherein the movable mold and the fixed mold are assembled to form a cavity, a plurality of material pulling guide pillars are fixedly arranged on a parting surface of the fixed mold, a plurality of material guide holes corresponding to the material pulling guide rods are arranged on the parting surface of the movable mold, and the plurality of material guide holes are communicated with the cavity through material guide grooves;
when the movable die and the fixed die are assembled, the protruding part of the material pulling guide post extends into the corresponding material guide hole in a clearance mode.
When the movable die and the fixed die are separated, the material pulling guide pillar directly pulls out the formed stub bar from the movable die, and the stub bar takes out the formed product, so that the automatic demolding of the product is realized.
As an improvement of the single-color injection mold without the ejection mechanism, the utility model is a plurality of the material pulling guide rod is fixed in the fixed mold core of the fixed mold and is positioned on all sides of the cavity.
As an improvement of the single-color injection mold without the ejection mechanism of the present invention, a movable mold core is fixed on a movable mold plate of the movable mold, the movable mold core is accommodated in a groove of the movable mold plate and forms an annular positioning groove, and a plurality of positioning blocks are arranged at the edge of the fixed mold core;
when the movable mold and the fixed mold are assembled, the positioning blocks extend into the positioning grooves.
As the utility model discloses the monochromatic injection mold's of no ejection mechanism improvement, be equipped with a plurality of runners on the movable mould benevolence, the runner through a plurality of ingates with the die cavity intercommunication, the runner center with main runner intercommunication on the cover half.
As the utility model discloses the monochromatic injection mold's of no ejection mechanism improvement, the owner waters the end and is located the shelled upper surface of cover half, wear to be equipped with a plurality of sprues on the shelled mould of cover half, the side of the shelled upper surface of sprues upper end through being located the shelled upper surface of cover half with the owner waters the intercommunication, the sprue lower extreme with the cross gate intercommunication.
As the utility model discloses the monochromatic injection mold's of no ejection mechanism improvement, the baffle box includes a plurality of interior baffle boxes and an annular outer baffle box, outer baffle box encloses to be located outside the interior baffle box and with interior baffle box intercommunication, interior baffle box is alternately arranged.
As an improvement of the utility model discloses no ejection mechanism's monochromatic injection mold, the stock guide is located on the outer baffle box and near four corners of outer baffle box.
As an improvement of the single-color injection mold without the ejection mechanism, the depth of the horizontal pouring channel is the same as the depth of the guide chute.
As an improvement of the single-color injection mold without the ejection mechanism, the movable mold plate lower end of the movable mold is fixed with a movable mold base through two square irons.
As the utility model discloses the monochromatic injection mold's of no ejection mechanism improvement, the guide hole degree of depth is greater than draw the bulge height of material guide pillar, guide hole upper end diameter is greater than guide hole lower extreme diameter.
The utility model discloses no ejection mechanism's monochromatic injection mold utilizes the mould power of drawing of movable mould and cover half, through setting up the material guide pillar that draws on the cover half, pulls out fashioned stub bar on the movable mould, and then extracts the product that links to each other with the stub bar, realizes the automatic drawing of patterns of product, compares with prior art, the utility model discloses a mould does not have ejection mechanism, has greatly reduced mould manufacturing cost, and the drawing of patterns is smooth and easy.
Description of the drawings:
FIG. 1 is a fixed die perspective view of a single-color injection mold without an ejection mechanism of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a perspective view of the fixed mold core of the mono-color injection mold without the ejection mechanism of the present invention;
FIG. 4 is a perspective view of a moving mold of the mono-color injection mold without the ejection mechanism of the present invention;
FIG. 5 is an enlarged view at B in FIG. 4;
FIG. 6 is a three-dimensional enlarged view of the connecting stub bar and the pulling guide post of the plastic product of the present invention;
FIG. 7 is a cross-sectional view showing the matching of the core insert and the core insert of the single-color injection mold without the ejection mechanism of the present invention;
fig. 8 is an enlarged view at C in fig. 7.
Illustration of the drawings:
1. the fixed die comprises a fixed die, 11, a fixed die base, 12, a fixed die plate, 13, a fixed die core, 131, a positioning block, 132, a main pouring gate, 133, a side pouring gate, 134, a straight pouring gate, 14, a material pulling guide pillar, 2, a movable die, 21, a movable die base, 22, square iron, 23, a movable die plate, 231, a positioning groove, 24, a movable die core, 241, a material guide hole, 242, an outer material guide groove, 243, an inner material guide groove, 244, an inner pouring gate, 245, a cross pouring gate, 3, a die cavity, 4, a plastic product, 5 and a stub bar.
Detailed Description
The following embodiments of the present invention will be specifically explained with reference to the accompanying drawings, which are only used for reference and illustration, and do not limit the scope of the present invention.
Referring to fig. 1 and 4, a monochrome injection mold without an ejection mechanism comprises a fixed mold 1 and a movable mold 2, wherein the fixed mold 1 is fixedly arranged at an ejection end of a monochrome injection machine, the movable mold 2 is fixedly arranged on a movable mold plate of the injection machine, a mold closing system drives the movable mold 2 to be far away from or close to the fixed mold 1, the movable mold 2 and the fixed mold 1 are closed and form mold cavities 3 on mold closing surfaces of the fixed mold and the movable mold, 16 plastic products 4 can be produced at one time by the injection mold of the embodiment, and therefore the number of the mold cavities 3 is preferably 16.
Referring to fig. 1, 2, 3, 7 and 8, the fixed mold 1 includes a fixed mold base 11, a fixed mold plate 12 and a fixed mold core 13, the fixed mold base 11 is fixed at an ejection end of the single-color injection molding machine and is used for ejecting liquid plastic into the mold, the fixed mold plate 12 is fixed on the fixed mold base 11 through a fixed mold fixing plate (not labeled), the fixed mold core 13 is embedded and fixed on a parting surface of the fixed mold plate 12, a main runner 132 is arranged at the center of the fixed mold 1, the main runner 132 passes through the fixed mold base 11 and the fixed mold plate 12, and the tail end of the main runner is located on the upper surface of the fixed mold core 13, a plurality of side runners 133 are further arranged on the upper surface of the fixed mold core 13, the main runner 132 is communicated with the plurality of side runners 133, a plurality of sprues 134 are arranged on the fixed mold core 13, the upper end of the sprues 134 is communicated with the main runner 132 through the plurality of side runners 133, the lower end of the sprues 134, the plurality of material pulling guide rods 14 are positioned around all the cavities 3, and a plurality of positioning blocks 131 are arranged at the edge of the core insert 13.
Referring to fig. 4, 5, 7 and 8, the movable mold 2 includes a movable mold base 21, two square irons 22, a movable mold plate 23 and a movable mold core 24, the movable mold base 21 is fixed on a movable mold plate of the injection machine and is driven by a mold closing system to move, the movable mold plate 23 is fixed on the movable mold base 21 through the two square irons 22, the movable mold core 24 is embedded and fixed on the movable mold plate 23 and is accommodated in a groove of the movable mold plate 23 to form an annular positioning groove 231, when the movable mold 2 and the fixed mold 1 are closed, a plurality of positioning blocks 131 extend into the positioning groove 231, the movable mold core 24 is provided with a plurality of runners 245, the runners 245 are communicated with the mold cavities 3 through a plurality of inner runners 244, the centers of the runners 245 are directly communicated with the lower ends of the sprues 134, in this embodiment, the 16 mold cavities 3 are divided into four groups, one runner 245 is communicated with the four surrounding mold cavities 3 through the inner runner 244, and a material guide, the material guiding groove comprises a plurality of inner material guiding grooves 243 and an annular outer material guiding groove 242, the outer material guiding groove 242 is arranged around the inner material guiding groove 243 and all the cavities 3, the inner material guiding groove 243 is arranged in a crossed way to communicate the outer material guiding groove 242 with the cross pouring channel 245, in the mold of the utility model, the inner material guide groove 243, the outer material guide groove 242, the cross gate 245 and the cavity 3 are communicated with each other, a plurality of material guide holes 241 corresponding to the material pulling guide rod 14 are arranged on the parting surface of the movable die core 24, the diameter of the upper end of each material guide hole 241 is larger than the diameter of the lower end of each material guide hole 241, the plurality of material guide holes 241 are respectively positioned on the outer material guide groove 242 and are close to four corners of the outer material guide groove 242, the depth of the inner material guide groove and the depth of the cross gate 245 are the same, the plurality of material guide holes 241 are communicated with the cavity 3 through the inner material, when the movable die 2 and the fixed die 1 are matched, the protruding part of the material pulling guide post 14 extends into the corresponding guide hole 241 in a clearance mode, and the depth of the guide hole 241 is larger than the height of the protruding part of the material pulling guide post 14.
Referring to fig. 1 to 8, the utility model discloses monochrome injection mold's that does not have ejection mechanism operating principle does: the monochromatic injection machine injects liquid plastic into the main runner 132 through the fixed mold 1, the liquid plastic sequentially enters the four cross runners 245 through the side runners 133 and the sprue 134, then enters each cavity 3 through the inner runner 244 and is filled with the inner guide groove 243, the outer guide groove 242 and the guide holes 241, after being cooled by a cooling system of the mold, the liquid plastic in the cavity 3 is cooled to form a plastic product 4, the liquid plastic in the inner guide groove 243, the outer guide groove 242, the guide holes 241, the inner runner 244 and the cross runners 245 are cooled to form a stub bar 5, at this time, the whole stub bar 5, the plastic product 4 and the pulling guide rod 14 are connected together, the mold closing system drives the movable mold 2 to be away from the fixed mold 1, the pulling guide rod 14 pulls out the stub bar 5, meanwhile, the plastic product 4 is driven to be demolded, and a worker or a mechanical hand takes out the stub bar 5 and the plastic product 4 from the pulling guide rod 14.
The utility model discloses no ejection mechanism's monochromatic injection mold utilizes the mould power of drawing of movable mould and cover half, through setting up the material guide pillar that draws on the cover half, pulls out fashioned stub bar on the movable mould, and then extracts the product that links to each other with the stub bar, realizes the automatic drawing of patterns of product, compares with prior art, the utility model discloses a mould does not have ejection mechanism, has greatly reduced mould manufacturing cost, and the drawing of patterns is smooth and easy.
The above disclosure is only for the preferred embodiment of the present invention, and the scope of the right protection of the present invention cannot be limited thereby, and therefore, the equivalent changes made in the claims of the present invention still belong to the scope covered by the present invention.

Claims (10)

1. A single-color injection mold without an ejection mechanism comprises a movable mold and a fixed mold, and is characterized in that the movable mold and the fixed mold are assembled to form a mold cavity, a plurality of material pulling guide pillars are fixedly arranged on a parting surface of the fixed mold, a plurality of material guide holes corresponding to the material pulling guide pillars are arranged on the parting surface of the movable mold, and the plurality of material guide holes are communicated with the mold cavity through material guide grooves;
when the movable die and the fixed die are assembled, the protruding part of the material pulling guide post extends into the corresponding material guide hole in a clearance mode.
2. The monochrome injection mold without the ejection mechanism according to claim 1, wherein a plurality of the material pulling guide pillars are fixed on the fixed mold core of the fixed mold and positioned around all the cavities.
3. The monochrome injection mold without the ejection mechanism according to claim 2, wherein a moving mold core is fixed on a moving mold plate of the moving mold, the moving mold core is accommodated in the groove of the moving mold plate and forms an annular positioning groove, and a plurality of positioning blocks are arranged at the edge of the fixed mold core;
when the movable mold and the fixed mold are assembled, the positioning blocks extend into the positioning grooves.
4. The monochrome injection mold without the ejection mechanism according to claim 3, wherein the movable mold core is provided with a plurality of cross runners, the cross runners are communicated with the mold cavity through a plurality of ingates, and the center of the cross runner is communicated with the main runner on the fixed mold.
5. The monochrome injection mold without the ejection mechanism according to claim 4, wherein the end of the main pouring channel is positioned on the upper surface of the fixed mold core, a plurality of straight pouring channels are arranged on the fixed mold core in a penetrating way, the upper ends of the straight pouring channels are communicated with the main pouring channel through side pouring channels positioned on the upper surface of the fixed mold core, and the lower ends of the straight pouring channels are communicated with the cross pouring channels.
6. The monochrome injection mold without an ejection mechanism according to claim 4, wherein the material guiding slots comprise a plurality of inner material guiding slots and an annular outer material guiding slot, the outer material guiding slot is arranged around the inner material guiding slot and is communicated with the inner material guiding slot, and the inner material guiding slots are arranged in a cross manner.
7. The monochrome injection mold without ejection mechanism according to claim 6, wherein the guide holes are located on the outer guide chute near four corners of the outer guide chute.
8. The mono-color injection mold without the ejection mechanism according to claim 4, wherein the runner depth is the same as the gathering sill depth.
9. The monochrome injection mold without an ejection mechanism according to claim 1, wherein a movable mold base is fixed to a lower end of the movable mold plate of the movable mold through two square irons.
10. The monochrome injection mold without an ejection mechanism according to claim 1, wherein the depth of the material guiding hole is larger than the height of the protruding part of the material pulling guide pillar, and the diameter of the upper end of the material guiding hole is larger than the diameter of the lower end of the material guiding hole.
CN202021422753.9U 2020-07-17 2020-07-17 Single-color injection mold without ejection mechanism Active CN213107917U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021422753.9U CN213107917U (en) 2020-07-17 2020-07-17 Single-color injection mold without ejection mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021422753.9U CN213107917U (en) 2020-07-17 2020-07-17 Single-color injection mold without ejection mechanism

Publications (1)

Publication Number Publication Date
CN213107917U true CN213107917U (en) 2021-05-04

Family

ID=75678309

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021422753.9U Active CN213107917U (en) 2020-07-17 2020-07-17 Single-color injection mold without ejection mechanism

Country Status (1)

Country Link
CN (1) CN213107917U (en)

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