CN213618108U - Oblique ejection device and injection mold - Google Patents
Oblique ejection device and injection mold Download PDFInfo
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- CN213618108U CN213618108U CN202020316276.1U CN202020316276U CN213618108U CN 213618108 U CN213618108 U CN 213618108U CN 202020316276 U CN202020316276 U CN 202020316276U CN 213618108 U CN213618108 U CN 213618108U
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Abstract
The utility model provides a push up device to one side sets up the first dog of arc shape that has first dog head and with this first dog head synchronous pivoted second dog head, utilizes this first dog of pressure drive that the movable mould produced when compound die, die sinking to rotate, so that first dog head rotates and breaks away from with the back-off core, realize the automatic technological effect that breaks away from of back-off part of injection moulding product, when overcoming the back-off drawing of patterns that exists among the prior art, easily make product or the impaired problem of mould. The utility model also provides an injection mold.
Description
Technical Field
The utility model relates to an injection mold especially relates to a push up device and have injection mold of push up device to one side.
Background
Related parts in many products mostly adopt the working of plastics, and the working of plastics all forms through injection moulding, in order to guarantee that each part transition is more smooth, the relevant part adopts once integral forming preferably, wherein many related parts all are the form of back-off.
For the injection mold of the injection molding product with the inverted outer edge, when the product is ejected obliquely, the inverted outer edge of the product can cover the inverted molded surface of the oblique ejector block, so that the product cannot be automatically separated from the oblique ejector block and is difficult to eject.
The product and even the inclined ejection mechanism of the die are easily damaged by manually stripping the outer edge of the inverted buckle to take out the product, and the production efficiency is low, the labor cost is high and the working strength is high.
Disclosure of Invention
In view of this, the present invention provides an inclined ejecting device and an injection mold having the same to solve the above problems.
An inclined top device is accommodated in a first accommodating space formed by a first fixed die plate, a second fixed die plate and a cavity of a fixed die, a first opening is formed in the first fixed die plate, a second opening is formed in the second fixed die plate, the inclined top device is in an arc shape, and the inclined top device comprises a first stop block, a stop part, a pressure pin, a spring and a second stop block, wherein the stop part is internally provided with a second accommodating space; the first stop block consists of a first stop block head, a second stop block head, a third stop block head and a fourth stop block head, and the cross sections of the first stop block head and the second stop block head are intersected at the S part; a first part with an arc-shaped vertical section is formed between the first stop block head and the fourth stop block head, and a second part with an arc-shaped vertical section is formed between the second stop block head and the third stop block head; the first portion and the second portion have a common center; one end of the spring is fixed at the bottom of the second accommodating space, the other end of the spring is fixed with one end of the pressure pin, and the other end of the pressure pin corresponds to the third block head; the stop part comprises a first step and a second step which are arranged corresponding to the fourth stop head, and a rotating shaft arranged at the turning position of the first step and the second step, and the position of the rotating shaft is at the position of the circle center; and under the die assembly state, the third block head is abutted and contacted with the surface of the second step, the top end of the third block head is always abutted with the pressure pin, the second block head and the second block are abutted at the S part and contained in the first opening, and the first block head extends out of the second opening and forms a back-off core with the die cavity.
Under the mold closing state, a first gap with a fan-shaped vertical section is formed between the linear surface of the fourth stop head and the surface of the first step, and a second gap with a fan-shaped vertical section and the S part as the center of a circle is formed between the second stop head and the second stop; the arc lengths of the vertical cross sections of the first gap and the second gap meet the requirement that when the fourth stop block head completely abuts against the surface of the first step, the reverse buckling plane part of the second stop block head just abuts against the lower surface of the second stop block, and the first stop block head completely contracts into the first opening.
Wherein the radius from the circle center to the arc surface of the first portion is the same as the radius from the circle center to the arc surface of the second portion, and the radius is not greater than the cross-sectional width of the first step.
The first block head is positioned at the top end of the first block, and the fourth block head is positioned at the bottom end of the first block.
The vertical section of the top end of the third block head is in a convex shape.
Wherein, the vertical section of the second block head is in a barb shape.
The utility model also provides an injection mold, including movable mould and cover half, form the die cavity that is used for shaping injection moulding product during movable mould and cover half compound die, the cover half is pulled including first cover half and second cover half, injection mold still includes as above oblique top installation.
The utility model also provides an injection mold, including movable mould and cover half, form the die cavity that is used for shaping the injection moulding product when the movable mould closes the mould with the cover half, the cover half includes first cover half and second cover half and pulls, the injection mold still includes the oblique top device, the oblique top device is the circular arc type; the inclined top device is accommodated in a first accommodating space formed by a first fixed die plate and a cavity, a first opening is formed in the first fixed die plate, and a second opening is formed in the second fixed die plate; the inclined top device comprises a first stop block, a stop part, a pressure pin, a spring and a second stop block, wherein a second accommodating space is formed in the stop part; one end of the spring is fixed at the bottom of the second accommodating space, the other end of the spring is fixed with one end of the pressure pin, and the other end of the pressure pin corresponds to the second part; the stop part comprises a first step arranged corresponding to the first part, a second step arranged corresponding to the second part and a rotating shaft arranged at the turning position of the first step and the second step, and the position of the rotating shaft is at the position of the circle center; and in a die assembly state, the second part is abutted and contacted with the surface of the second step, the top end of the second part is always abutted with the pressure pin, the second part is abutted with the second stop block and contained in the first opening, and the first part extends out of the second opening and forms a back-off core with the die cavity.
The first stop block consists of a first stop block head, a second stop block head, a third stop block head and a fourth stop block head, and the cross sections of the first stop block head and the second stop block head are intersected at the S part; a first part with an arc-shaped vertical section is formed between the first stop block head and the fourth stop block head, and a second part with an arc-shaped vertical section is formed between the second stop block head and the third stop block head; and under the die assembly state, the third block head is abutted and contacted with the surface of the second step, the top end of the third block head is always abutted with the pressure pin, the second block head and the second block are abutted at the S part and contained in the first opening, and the first block head extends out of the second opening and forms a back-off core with the die cavity.
Under the die assembly state, a first gap with a fan-shaped vertical section is formed between the surface of the fourth stop block head, which is a straight line, and the surface of the first step, a second gap with a fan-shaped vertical section, which takes the S part as the center of a circle, is formed between the second stop block head and the second stop block, the arc lengths of the vertical sections of the first gap and the second gap meet the requirement that when the fourth stop block head completely pushes against the surface of the first step, the back-off plane part of the second stop block head just pushes against the lower surface of the second stop block, and the first stop block head completely shrinks into the first opening.
The utility model discloses a circular arc pushes up shedder and injection mold to one side, have first dog head and the first dog of the arc shape with this first dog head synchronous pivoted second dog head through the setting, utilize the movable mould at the compound die, this first dog of pressure drive that produces when the die sinking rotates, so that first dog head rotates and breaks away from with the back-off core, realize the automatic technological effect who breaks away from of back-off part of injection moulding product, when overcoming the back-off drawing of patterns that exists among the prior art, easily make product or the impaired problem of mould.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective structural view of an injection mold in a mold closing state according to an embodiment of the present invention.
Fig. 2 is a top view of the injection mold of fig. 1.
Fig. 3 is a cross-sectional view of the injection mold of fig. 2 taken along section line a-a in a closed state.
Fig. 4 is a partially enlarged schematic view of an X portion of the injection mold in fig. 1.
Fig. 5 is a partially enlarged schematic view of a portion Z in fig. 3.
FIG. 6 is a cross-sectional view of the injection mold of FIG. 2 taken along section line A-A in an open mold condition.
Fig. 7 is a partially enlarged schematic view of a Y portion of the injection mold in fig. 1.
Fig. 8 is a partially enlarged schematic view of a portion M of the injection mold of fig. 6 in a mold-opened state.
Detailed Description
In order to clearly understand the above objects, features and advantages of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, and the described embodiments are merely some embodiments, rather than all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
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 herein in the description of the invention 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.
It will be understood that 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.
Referring to fig. 1 to 3, an injection mold 100 includes a movable mold (not shown) and a fixed mold 10, the movable mold and the fixed mold 10 form a cavity 12 for molding an injection product 200 when being assembled, the fixed mold 10 includes a first fixed mold plate 11 and a second fixed mold plate 14, the injection mold 100 further includes an inclined ejector 30, and the inclined ejector 30 is in an arc shape.
The pitched roof device 30 is accommodated in a first accommodating space 13 formed by the first fixed die plate 11, the second fixed die plate 14 and the cavity 12. Referring to fig. 4, the first fixed mold plate 11 is provided with a first opening 110, and the second fixed mold plate 14 is provided with a second opening 140.
Referring to fig. 5, the lifter includes a first stopper 31, a stopper 32 having a second receiving space 35 therein, a pressure pin 33, a spring 34, and a second stopper 38, wherein the first stopper 31 includes a first portion 315 and a second portion 316 having a common center and a circular arc-shaped vertical cross section. The spring 34 has one end fixed to the bottom of the second receiving space 35 and the other end fixed to one end of the pressure pin 33, and the other end of the pressure pin 33 corresponds to the second portion 316. The stopper 32 includes a first step 322 corresponding to the first portion 315, a second step 323 corresponding to the second portion 316, and a rotating shaft 320 disposed at a turning position of the first step 322 and the second step 323, wherein the rotating shaft 320 is disposed at the center of the circle. Wherein, the radius from the circle center to the arc surface of the first portion 315 is the same as the radius from the circle center to the arc surface of the second portion 316, and the radius is not greater than the section width of the first step 322.
Specifically, the first stopper 31 is composed of a first stopper head 311, a second stopper head 312, a third stopper head 313 and a fourth stopper head 314, and the cross sections of the first stopper head 311 and the second stopper head 312 intersect at the S portion 310; a first portion 315 having a circular arc-shaped vertical cross section is formed between the first stopper head 311 and the fourth stopper head 314, and a second portion 316 having a circular arc-shaped vertical cross section is formed between the second stopper head 312 and the third stopper head 313.
Specifically, the first block head 311 is located at the top end of the first block 31, the fourth block head 314 is located at the bottom end of the first block 31, and the first step 322 is disposed corresponding to the fourth block head 314. The vertical section of the top end of the third stopper head 313 is convex, and the vertical section of the second stopper head 312 is in the shape of a barb.
In the mold clamping state, the second portion 316 abuts against the surface of the second step 323, the top end of the second portion 316 abuts against the pressure pin 33, the second portion 316 abuts against the second stopper 38 and is accommodated in the first opening 110, and the first portion 315 extends out of the second opening 140 and forms a reverse core with the cavity 12. Specifically, the third stopper head 313 abuts against the surface of the second step 323, the tip end of the third stopper head 313 always abuts against the pressure pin 33, and the second stopper head abuts against the second stopper at the S portion 310.
Specifically, in the mold clamping state, a first gap 37 having a sector-shaped vertical cross section is formed between the linear surface of the fourth block head 314 and the surface of the first step 322, and a second gap 36 having a sector-shaped vertical cross section is formed between the second block head 312 and the second block 38, with the S portion 310 as the center.
The arc lengths of the vertical cross sections of the first and second gaps 37 and 36 are such that when the fourth block head 314 fully abuts against the surface 322 of the first step, the inverted plane portion 3120 of the second block head 312 just abuts against the lower surface of the second block 38, and the first block head 311 fully retracts into the first opening 140.
Referring to fig. 6-8, in the mold opening state, the movable mold is opened and separated from the fixed mold 10, and when the movable mold is opened, the movable mold is far away from the first fixed mold plate 11, so that the second stopper 312 loses the downward pressure, and the spring 34 loses the downward pressure and recovers the deformation. At this time, the spring 34 is deformed again to generate an upward pushing force, so as to push the pressure pin 33 to move upward, and further push the second stopper head 312 upward to protrude from the first opening 110, and when the flat surface portion 3120 of the second stopper head 312 abuts against the lower flat surface of the second stopper 18, the second stopper head 312 stops moving.
When the pressure pin 33 abuts against the third block head 313 by abutting against the second block head 312, so that the second block head 312 moves upward along the circular arc-shaped motion track with the S portion 310 as the center, the first block head 311 and the fourth block head 314 are driven to move downward along the circular arc-shaped motion track with the rotating shaft 320 as the center. When the flat portion of the fourth block head 314 abuts against the surface portion of the first step 322, the first block 31 stops moving, and the first block head 311 is completely received in the second opening 140, so that the inverted portion of the injection molded product 200 is naturally released.
The utility model relates to an arc pushes up shedder and injection mold to one side, have first dog head and the first dog of arc shape with the synchronous pivoted second dog head of this first dog head through the setting, utilize the movable mould at the compound die, this first dog of pressure drive that produces when the die sinking rotates, so that first dog head rotates and breaks away from with the back-off core, realize the automatic technological effect who breaks away from of back-off part of injection moulding product, when overcoming the back-off drawing of patterns that exists among the prior art, easily make product or the impaired problem of mould.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. An inclined top device is accommodated in a first accommodating space formed by a first fixed die plate, a second fixed die plate and a cavity of a fixed die, and is characterized in that a first opening is formed in the first fixed die plate, a second opening is formed in the second fixed die plate, the inclined top device is in an arc shape, and the inclined top device comprises a first stop block, a stop part, a pressure pin, a spring and a second stop block, wherein the stop part is internally provided with a second accommodating space;
the first stop block consists of a first stop block head, a second stop block head, a third stop block head and a fourth stop block head, and the cross sections of the first stop block head and the second stop block head are intersected at the S part; a first part with an arc-shaped vertical section is formed between the first stop block head and the fourth stop block head, and a second part with an arc-shaped vertical section is formed between the second stop block head and the third stop block head; the first portion and the second portion have a common center;
one end of the spring is fixed at the bottom of the second accommodating space, the other end of the spring is fixed with one end of the pressure pin, and the other end of the pressure pin corresponds to the third block head; the stop part comprises a first step and a second step which are arranged corresponding to the fourth stop head, and a rotating shaft arranged at the turning position of the first step and the second step, and the position of the rotating shaft is at the position of the circle center;
and under the die assembly state, the third block head is abutted and contacted with the surface of the second step, the top end of the third block head is always abutted with the pressure pin, the second block head and the second block are abutted at the S part and contained in the first opening, and the first block head extends out of the second opening and forms a back-off core with the die cavity.
2. The angle lifter according to claim 1, wherein in the mold clamping state, a first gap with a fan-shaped vertical section is formed between the linear surface of the fourth stopper head and the surface of the first step, and a second gap with a fan-shaped vertical section is formed between the second stopper head and the second stopper, wherein the second gap takes an S part as a center;
the arc lengths of the vertical cross sections of the first gap and the second gap meet the requirement that when the fourth stop block head completely abuts against the surface of the first step, the reverse buckling plane part of the second stop block head just abuts against the lower surface of the second stop block, and the first stop block head completely contracts into the first opening.
3. The angle apparatus of claim 1, wherein a radius of the circular arc surface from the center of the circle to the first portion is the same as a radius of the circular arc surface from the center of the circle to the second portion, and the radius is not greater than a cross-sectional width of the first step.
4. The angle ejector apparatus of claim 1, wherein the first stop head is located at a first stop top end and the fourth stop head is located at a first stop bottom end.
5. The angle ejector apparatus of claim 1, wherein a vertical cross-section of a top end of the third stopper head is convex-shaped.
6. The angle roof apparatus of claim 1, wherein the vertical cross-section of the second stopper head is in the shape of a barb.
7. An injection mold, comprising a movable mold and a fixed mold, wherein a cavity for molding an injection product is formed when the movable mold and the fixed mold are combined, the fixed mold comprises a first fixed mold plate and a second fixed mold plate, and the injection mold further comprises the pitched roof device as claimed in any one of claims 1 to 6.
8. An injection mold comprises a movable mold and a fixed mold, wherein a cavity for molding an injection product is formed when the movable mold and the fixed mold are assembled, and the fixed mold comprises a first fixed mold plate and a second fixed mold plate;
the inclined top device is accommodated in a first accommodating space formed by a first fixed die plate and a cavity, a first opening is formed in the first fixed die plate, and a second opening is formed in the second fixed die plate;
the inclined top device comprises a first stop block, a stop part, a pressure pin, a spring and a second stop block, wherein a second accommodating space is formed in the stop part; one end of the spring is fixed at the bottom of the second accommodating space, the other end of the spring is fixed with one end of the pressure pin, and the other end of the pressure pin corresponds to the second part; the stop part comprises a first step arranged corresponding to the first part, a second step arranged corresponding to the second part and a rotating shaft arranged at the turning position of the first step and the second step, and the position of the rotating shaft is at the position of the circle center;
and in a die assembly state, the second part is abutted and contacted with the surface of the second step, the top end of the second part is always abutted with the pressure pin, the second part is abutted with the second stop block and contained in the first opening, and the first part extends out of the second opening and forms a back-off core with the die cavity.
9. The injection mold of claim 8, wherein the first stop is comprised of a first stop head, a second stop head, a third stop head, and a fourth stop head, the first stop head and the second stop head cross at the S-section; a first part with an arc-shaped vertical section is formed between the first stop block head and the fourth stop block head, and a second part with an arc-shaped vertical section is formed between the second stop block head and the third stop block head;
and under the die assembly state, the third block head is abutted and contacted with the surface of the second step, the top end of the third block head is always abutted with the pressure pin, the second block head and the second block are abutted at the S part and contained in the first opening, and the first block head extends out of the second opening and forms a back-off core with the die cavity.
10. The injection mold according to claim 9, wherein in a mold closing state, a first gap with a fan-shaped vertical cross section is formed between the linear surface of the fourth stopper head and the surface of the first step, a second gap with a fan-shaped vertical cross section is formed between the second stopper head and the second stopper, and the arc lengths of the vertical cross sections of the first gap and the second gap are such that when the fourth stopper head completely abuts against the surface of the first step, the reverse buckling plane portion of the second stopper head just abuts against the lower surface of the second stopper, and the first stopper head completely retracts into the first opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020316276.1U CN213618108U (en) | 2020-03-15 | 2020-03-15 | Oblique ejection device and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020316276.1U CN213618108U (en) | 2020-03-15 | 2020-03-15 | Oblique ejection device and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213618108U true CN213618108U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020316276.1U Active CN213618108U (en) | 2020-03-15 | 2020-03-15 | Oblique ejection device and injection mold |
Country Status (1)
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|---|---|
| CN (1) | CN213618108U (en) |
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2020
- 2020-03-15 CN CN202020316276.1U patent/CN213618108U/en active Active
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