CN112873755A - Ejector rod mechanism and mold - Google Patents
Ejector rod mechanism and mold Download PDFInfo
- Publication number
- CN112873755A CN112873755A CN202011596001.9A CN202011596001A CN112873755A CN 112873755 A CN112873755 A CN 112873755A CN 202011596001 A CN202011596001 A CN 202011596001A CN 112873755 A CN112873755 A CN 112873755A
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- pushing
- mounting
- ejector
- pushing member
- die core
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- 230000007246 mechanism Effects 0.000 title claims abstract description 51
- 238000009434 installation Methods 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 230000000576 supplementary effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The application relates to injection mold technical field, especially relates to an ejector pin mechanism and mould, and ejector pin mechanism includes: the pushing mechanism comprises a mounting member, a first pushing member and a pushing mechanism; wherein the pushing mechanism comprises at least one second pushing member; the first pushing member and the second pushing member are respectively arranged at two opposite side parts of the mounting member and extend towards the direction away from each other; the second pushing member forms an angle with the direction perpendicular to the plane of the mounting member. In the ejector pin mechanism that this application provided, owing to add the installation component, both played the length that reduces the second and pushed the component, played the supplementary effect that strengthens the second again and pushed the component, reduced the risk that the second pushed the component and broken, and then reduced the frequency of repairing the mould.
Description
Technical Field
The application relates to the technical field of injection molds, in particular to an ejector rod mechanism and a mold.
Background
At present, some injection molds with thin inclined top columns are developed according to the characteristics of products, wherein the thin inclined top columns are directly connected with the top rods at the lower parts of the thin inclined top columns, and the top columns at the lower parts push the small inclined top columns to achieve the purpose of unloading.
Disclosure of Invention
An object of this application is to provide a ejector pin mechanism and mould, has solved the thin oblique fore-set that exists among the prior art to a certain extent and has more slender, the in-process of using extremely its easy technical problem of rupture.
The application provides a push rod mechanism, includes: the pushing mechanism comprises a mounting member, a first pushing member and a pushing mechanism;
wherein the ejector mechanism comprises at least one second ejector member;
the first pushing member and the second pushing member are respectively arranged at two opposite side parts of the mounting member, and extend towards the opposite directions respectively;
the second pushing member forms an angle with a direction perpendicular to the plane of the mounting member.
In the above technical solution, further, the second pushing member is clamped with the mounting member.
In any of the above technical solutions, further, the mounting member includes a connection mounting portion and a press-mounting portion;
the mounting part is provided with a mounting cavity penetrating through the top end and the bottom end of the mounting part, and the side wall of the mounting cavity is provided with a limiting groove;
one end of the second pushing member is arranged in the mounting cavity, a limiting part is formed at the end part of the second pushing member inserted in the mounting cavity, and the limiting part is clamped in the limiting groove.
In any of the above technical solutions, further, the mounting portion is connected to the press-fitting portion by a fastener.
In any one of the above technical solutions, further, the mounting portion and the pressing portion have rectangular parallelepiped plate-shaped structures.
In any of the above technical solutions, further, the second pushing member is screwed with the mounting member.
In any of the above technical solutions, further, the two pushing members include a pushing body and a connecting portion connected to each other, wherein the connecting portion is in threaded connection with the mounting member, and the pushing body extends toward a direction away from the first pushing member.
In any of the above technical solutions, further, the pushing mechanism includes n pushing members, where n is an even number greater than zero;
wherein
The pushing members are arranged as a group, and two groups of pushing members are symmetrically arranged along the length direction of a formed product;
and when n is an even number larger than 2, at least two pushing members in one group of pushing members form the same angle with the direction perpendicular to the plane of the mounting member, and at least two pushing members in one group of pushing members are arranged in a crossing manner.
The application also provides a die, which comprises the ejector rod mechanism in any technical scheme, so that all beneficial technical effects of the ejector rod mechanism are achieved, and repeated description is omitted.
In the above technical solution, further, the mold includes a lower mold base, a lower backing plate, a stripper plate, a mold core base, a mold core, and two side backing plates;
the lower base plate is arranged on the lower die base, and the stripper plate is arranged at the top end of the lower base plate;
the two side base plates are symmetrically arranged at two opposite side parts of the lower base plate; the die core seat is arranged at the top ends of the two side backing plates;
the die core seat is provided with an installation space penetrating through the top end of the die core seat, and the die core and the installation components of the ejector rod mechanism are sequentially arranged in the installation space from top to bottom along the height direction of the die core seat;
the die core seat is also provided with a through hole which penetrates through the bottom end of the die core seat and is communicated with the mounting space, one end of a first pushing member of the ejector rod mechanism is connected to the stripper plate, and the other opposite end of the first pushing member penetrates through the through hole and abuts against the lower end of the mounting member;
the stripper plate and the side backing plate are both provided with guide pillars, and part of the guide pillars are inserted into the die core seat.
Compared with the prior art, the beneficial effect of this application is:
in the ejector pin mechanism that this application provided, owing to add the installation component, both played the length that reduces the second and pushed the component, played the supplementary effect that strengthens the second again and pushed the component, reduced the risk that the second pushed the component and broken, and then reduced the frequency of repairing the mould.
The application provides a mould, including the aforesaid ejector pin mechanism, therefore, can realize the operation of unloading safely, reliably through this ejector pin mechanism, guarantee production efficiency.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a push rod mechanism provided in an embodiment of the present application;
FIG. 2 is a schematic partial structural diagram of a push rod mechanism provided in an embodiment of the present application;
FIG. 3 is an enlarged schematic view of FIG. 2 at A;
FIG. 4 is a schematic structural view of a second urging member provided in the embodiments of the present application;
FIG. 5 is a schematic structural diagram of a mold provided in an embodiment of the present application;
FIG. 6 is a schematic partial structural view of a mold provided in an embodiment of the present application;
FIG. 7 is an enlarged view of FIG. 6 at B;
fig. 8 is a schematic structural view of another part of the mold according to the embodiment of the present application.
Reference numerals:
1-mounting component, 11-mounting component, 12-pressing component, 13-mounting cavity, 14-limiting groove, 15-first mounting cavity, 16-second mounting cavity, 2-first pushing component, 3-second pushing component, 31-limiting component, 32-No. one second pushing component, 33-No. two second pushing component, 34-No. three second pushing component, 4-lower die holder, 5-lower backing plate, 6-discharging plate, 7-die holder, 8-die core, 9-side backing plate and 10-product.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Ejector mechanisms and molds according to some embodiments of the present application are described below with reference to fig. 1-8.
Example one
Referring to fig. 1, an embodiment of the present application provides a ram mechanism including: the device comprises a mounting member 1, a first pushing member 2 and a pushing mechanism;
wherein the pushing mechanism comprises at least one second pushing member 3;
the first pushing member 2 and the second pushing member 3 are respectively arranged at two opposite side parts of the mounting member 1, and the first pushing member 2 and the second pushing member 3 respectively extend towards the opposite directions;
the second pushing member 3 forms an angle with the direction perpendicular to the plane of the mounting member 1.
The process of demoulding the formed product 10 by utilizing the ejector rod mechanism is as follows:
after the mold is injected, the first pushing member 2 pushes the mounting member 1, and then the second pushing member 3 is pushed to move backwards and upwards along the inclined hole on the mold core 8, so as to play a role in demolding.
The installation member 1 is additionally arranged, so that the length of the second pushing member 3 is reduced, the effect of assisting in strengthening the second pushing member 3 is achieved, the risk of breaking the second pushing member 3 is reduced, and the frequency of die repairing is reduced.
In this embodiment, preferably, as shown in fig. 2, the second pushing member 3 is clamped with the mounting member 1 to form a detachable mechanical connection structure, so that the two are connected more stably and are not easy to separate from each other, thereby ensuring smooth demolding, facilitating later-stage maintenance or replacement, and having stronger practicability.
Specifically, as shown in fig. 2 and 3, the mounting member 1 includes a connection mounting portion 11 and a press-fit portion 12;
wherein, the mounting part 11 is formed with a mounting cavity 13 penetrating through the opposite top and bottom ends thereof, and the side wall of the mounting cavity 13 is formed with a limiting groove 14;
one end of the second pushing member 3 is disposed in the mounting cavity 13, and a limiting portion 31 is formed at an end portion of the second pushing member 3 inserted in the mounting cavity 13, and the limiting portion 31 is clamped in the limiting groove 14.
According to the above-described structure, the specific assembling process of the second pushing member 3, the mounting member 1 and the first pushing member 2 is as follows:
firstly, the top end of the second pushing member 3 is installed into the installation cavity 13 from the bottom end of the installation part 11, and the limiting part 31 of the second pushing member 3 is clamped in the limiting groove 14 on the side wall of the installation cavity 13, so that the second pushing member 3 and the installation part 11 are assembled, then the pressing part 12 is abutted against the bottom end of the installation part 11, and the pressing part 12 is connected with the installation part 11 by adopting a following fastener, so that the second pushing member 3, the installation member 1 and the first pushing member 2 are assembled.
It can be seen that the mounting portion 11 and the pressing portion 12 are provided as two parts, mainly for assembling the second pushing member 3, the mounting member 1 and the first pushing member 2, i.e. realizing a detachable assembling structure.
Of course, not limited to the above structure, the second pushing member 3 may also be screwed with the mounting member 1, specifically, the second pushing member 3 includes a pushing body and a connecting portion, wherein the connecting portion is screwed with the mounting member 1, and the pushing body extends toward a direction away from the first pushing member 2, i.e. a detachable connecting structure is also formed.
In this embodiment, preferably, as shown in fig. 1, the mounting portion 11 and the press-fitted portion 12 each have a rectangular parallelepiped plate-like structure.
The structure is convenient to process and manufacture, has certain thickness and certain strength, and can play a role in enhancing the second pushing component 3.
In this embodiment, preferably, as shown in fig. 1, 6 and 7, the pushing mechanism includes six pushing members, three of which are taken as a group, and two groups of pushing members are symmetrically disposed along the length direction of the formed product 10, so as to ensure uniform pushing force and avoid deformation, damage and the like to the discharged product 10 due to uneven distribution of the pushing force.
Specifically, as shown in fig. 7, three second pushing members 3 included in one group of pushing members are named as a first second pushing member 32, a second pushing member 33, and a third second pushing member 34 for easy distinction;
wherein the mounting member 1 is formed with a first mounting cavity 15 and a second mounting cavity 16 which are arranged at intervals in the width direction thereof and penetrate the top of the mounting member 1;
one end of the first pushing member 32 is clamped in the first mounting cavity 15; the second pushing member 33 and the third pushing member 34 are clamped in the second mounting cavity 16, and the second pushing member 33 and the third pushing member 34 are arranged in a staggered manner to play a role in stable support;
the second pushing member 33 is arranged close to the first pushing member 32 relative to the third pushing member 34; the angles formed by the first pushing member 32 and the second pushing member 33 and the direction perpendicular to the plane of the mounting member 1 are the same, that is, the inclination angles and the inclination directions of the two are the same.
Of course, the pushing mechanism is not limited to the example in the embodiment as long as the following requirements are met, and the pushing mechanism includes n pushing members, and n is an even number greater than zero;
wherein
The two groups of pushing members are symmetrically arranged along the length direction of the formed product 10, so that the uniformity of the pushing force is ensured, and the deformation, damage and the like of the discharged product 10 caused by uneven distribution of the pushing force are avoided;
and when n is an even number larger than 2, at least two pushing members in one group of pushing members form the same angle with the direction perpendicular to the plane of the mounting member 1, so that the two pushing members in the group and the two symmetrical pushing members in the other group form stable and symmetrically distributed four-point support, the support effect is good, the stability is higher, and the processing is convenient.
In addition, at least two pushing members in one group of pushing members are arranged in a crossed manner, so that the stability of the support is ensured.
Example two
The embodiment of the application also provides a mold, which comprises the ejector rod mechanism in any one of the embodiments, so that all beneficial technical effects of the ejector rod mechanism are achieved, and the description is omitted.
In this embodiment, preferably, as shown in fig. 5 to 8, the mold includes a lower mold base 4, a lower backing plate 5, a stripper plate 6, a mold core base 7, a mold core 8 and two side backing plates 9;
wherein, the lower backing plate 5 is arranged on the lower die base 4, and the stripper plate 6 is arranged at the top end of the lower backing plate 5; the two side backing plates 9 are symmetrically arranged at two opposite side parts of the lower backing plate 5; the die core seat 7 is arranged at the top ends of the two side backing plates 9;
the die core seat 7 is provided with an installation space penetrating through the top end of the die core seat, and the die core 8 and the installation components 1 of the ejector rod mechanism are sequentially arranged in the installation space from top to bottom along the height direction of the die core seat 7;
the die core seat 7 is also provided with a through hole which penetrates through the bottom end of the die core seat and is communicated with the mounting space, one end of a first pushing member 2 of the ejector rod mechanism is inserted into the stripper plate 6, and the other opposite end of the first pushing member 2 penetrates through the through hole and abuts against the lower end of the mounting member 1;
the stripper plate 6 and the side backing plate 9 are provided with guide pillars, and part of the guide pillars are inserted into the die core seat 7.
According to the structure described above, the stripper plate 6 is driven to drive the first pushing member 2 to move, the first pushing member 2 further pushes the second pushing member 3 to push the injection molded product 10 upwards through the mounting member 1, so as to achieve the unloading effect, wherein the mounting member 1 is additionally arranged, so that the length of the second pushing member 3 is reduced, the effect of assisting in reinforcing the second pushing member 3 is achieved, the risk of breaking the second pushing member 3 is reduced, the unloading efficiency is ensured, and the die repairing frequency is reduced.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A ram mechanism, comprising: the pushing mechanism comprises a mounting member, a first pushing member and a pushing mechanism; wherein the ejector mechanism comprises at least one second ejector member;
the first pushing member and the second pushing member are respectively arranged at two opposite side parts of the mounting member, and extend towards the opposite directions respectively;
the second pushing member forms an angle with a direction perpendicular to the plane of the mounting member.
2. A ram mechanism as in claim 1, wherein the second urging member is snap-fit with the mounting member.
3. A ram mechanism according to claim 2, wherein the mounting member includes a connection mounting portion and a press portion;
the mounting part is provided with a mounting cavity penetrating through the top end and the bottom end of the mounting part, and the side wall of the mounting cavity is provided with a limiting groove;
one end of the second pushing member is arranged in the mounting cavity, a limiting part is formed at the end part of the second pushing member inserted in the mounting cavity, and the limiting part is clamped in the limiting groove.
4. A ram mechanism according to claim 3, wherein the mounting portion and the press-fit portion are connected by a fastener.
5. A ram mechanism according to claim 3, wherein the mounting portion and the press-fitted portion each have a rectangular parallelepiped plate-like structure.
6. A ram mechanism as in claim 1, wherein the second urging member is threaded with the mounting member.
7. The ejector mechanism of claim 6, wherein the two ejector members comprise an ejector body and a connecting portion connected to each other, wherein the connecting portion is threadedly connected to the mounting member, and the ejector body extends in a direction away from the first ejector member.
8. A ram mechanism as claimed in any one of claims 1 to 7, wherein the ejector mechanism comprises n of the ejector members, and n is an even number greater than zero;
wherein n2 pushing members are used as one group, and two groups of the pushing members are symmetrically arranged along the length direction of the formed product;
and when n is an even number larger than 2, at least two pushing members in one group of pushing members form the same angle with the direction perpendicular to the plane of the mounting member, and at least two pushing members in one group of pushing members are arranged in a crossing manner.
9. A mold comprising the ejector mechanism of any one of claims 1 to 7.
10. The mold of claim 9, wherein the mold comprises a lower mold base, a lower bolster, a stripper plate, a mold core base, a mold core, and two side bolsters;
the lower base plate is arranged on the lower die base, and the stripper plate is arranged at the top end of the lower base plate; the two side base plates are symmetrically arranged at two opposite side parts of the lower base plate; the die core seat is arranged at the top ends of the two side backing plates;
the die core seat is provided with an installation space penetrating through the top end of the die core seat, and the die core and the installation components of the ejector rod mechanism are sequentially arranged in the installation space from top to bottom along the height direction of the die core seat;
the die core seat is also provided with a through hole which penetrates through the bottom end of the die core seat and is communicated with the mounting space, one end of a first pushing member of the ejector rod mechanism is connected to the stripper plate, and the other opposite end of the first pushing member penetrates through the through hole and abuts against the lower end of the mounting member;
the stripper plate and the side backing plate are both provided with guide pillars, and part of the guide pillars are inserted into the die core seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596001.9A CN112873755A (en) | 2020-12-29 | 2020-12-29 | Ejector rod mechanism and mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596001.9A CN112873755A (en) | 2020-12-29 | 2020-12-29 | Ejector rod mechanism and mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112873755A true CN112873755A (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011596001.9A Pending CN112873755A (en) | 2020-12-29 | 2020-12-29 | Ejector rod mechanism and mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112873755A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207240752U (en) * | 2017-07-31 | 2018-04-17 | 昆山鼎联电子科技有限公司 | The ejecting mechanism of injection mold |
-
2020
- 2020-12-29 CN CN202011596001.9A patent/CN112873755A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207240752U (en) * | 2017-07-31 | 2018-04-17 | 昆山鼎联电子科技有限公司 | The ejecting mechanism of injection mold |
Non-Patent Citations (1)
| Title |
|---|
| 申开智: "《塑料成型模具》", 31 March 2013, 中国轻工业出版社 * |
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Application publication date: 20210601 |