CN218519083U - Mold with delay insert and injection molding product - Google Patents
Mold with delay insert and injection molding product Download PDFInfo
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- CN218519083U CN218519083U CN202222382437.9U CN202222382437U CN218519083U CN 218519083 U CN218519083 U CN 218519083U CN 202222382437 U CN202222382437 U CN 202222382437U CN 218519083 U CN218519083 U CN 218519083U
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Abstract
The utility model relates to a mould with postpone mold insert, include: a drive member; the rear template is arranged above the driving part, and the top of the driving part and the bottom of the rear template are provided with clearance; the rear mold core is arranged in the center of the rear template, and a counter bore is formed in the bottom of the rear mold core; the rear die insert pin is of a countersunk structure, the countersunk end of the rear die insert pin is reserved in the large-diameter hole of the counter bore, the tail end of the rear die insert pin penetrates through the rear die core, and the tail end of the rear die insert pin is used for forming an annular bulge of an injection molding product in the injection molding process; the countersunk end of the back die insert pin and the large-diameter hole of the counter bore are provided with clearance; the head end of the ejector pin is fixedly connected with the driving piece, the tail end of the ejector pin sequentially penetrates through the rear template and the rear mold core, and the tail end of the ejector pin is used for jacking the injection molding product. The utility model discloses can divide the power of holding tightly of product into two-stage process release to solved the product part and drawn concave problem.
Description
Technical Field
The utility model relates to the technical field of mold, specifically be about a mould and injection moulding product with postpone mold insert.
Background
The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article.
However, after the plastic product is injection molded, the local holding force is too large during ejection, and the surface of the product has a local concave phenomenon, so that the product has defects, and even becomes a waste product when the product is serious.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model aims at providing a mould and injection moulding product with postpone mold insert can divide the two-stage process release with the power of holding tightly of product to the product part has been solved and has been drawn concave problem.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a mould with postpone mold insert, include: a drive member; the rear template is arranged above the driving part, and the top of the driving part and the bottom of the rear template are provided with clearance; the rear mold core is arranged in the center of the rear template, and a counter bore is formed in the bottom of the rear mold core; the rear mould insert pin is of a countersunk structure, the countersunk end of the rear mould insert pin is reserved in the large-diameter hole of the counter bore, the tail end of the rear mould insert pin penetrates through the rear mould core, and the tail end of the rear mould insert pin is used for forming an annular bulge of an injection moulding product in the injection moulding process; the countersunk end of the rear die insert pin and the large-diameter hole of the counterbore are provided with a clearance arrangement, and the clearance length is H; the head end of the ejector pin is fixedly connected with the driving piece, the tail end of the ejector pin sequentially penetrates through the rear template and the rear mold core, and the tail end of the ejector pin is used for jacking the injection molding product.
In the mold with the delay insert, preferably, the tail end of the rear mold insert pin is provided with a step-shaped structure.
Preferably, the driving part comprises a bottom needle plate and a surface needle plate, the surface needle plate is arranged above the bottom needle plate in a stacked manner, and the surface needle plate is connected with the bottom needle plate through a first connecting piece; the head end of the thimble is fixed with the top of the bottom needle plate, and the tail end of the thimble penetrates through the surface needle plate, the rear template and the rear mold core in sequence.
The mold with the delay insert preferably further comprises a rear mold base plate, a first support plate and a second support plate; the first supporting plate and the second supporting plate are respectively arranged on two sides of the driving piece; the rear template, the first supporting plate and the rear template bottom plate are connected together through a second connecting piece; the rear mold plate, the second support plate and the rear mold bottom plate are connected together by another second connecting member.
The mold with the delaying insert preferably further comprises a top rod, wherein the top end of the top rod penetrates through the rear mold bottom plate and then is connected with the driving part, and the top rod is used for applying upward jacking force to the bottom pin plate.
Preferably, the ejector pins are arranged around the circumference of the rear mold insert pin.
Preferably, the number of the ejector pins is two, and the two ejector pins are respectively arranged on two sides of the rear mold insert pin.
The mold with the delaying insert preferably further comprises a front mold structure, wherein the front mold structure comprises a front mold bottom plate, a degumming plate and a front template which are sequentially arranged from top to bottom, and the front mold bottom plate, the degumming plate and the front template are connected through a pull rod assembly; a front mold core is arranged at the central position of the front template; a blind hole is formed in the whole formed by the first supporting plate and the rear template; when the die is closed, the pull rod assembly extends into the blind hole.
The utility model also provides an injection molding product, which is prepared by utilizing the mold and comprises a main body, wherein the main body is provided with a through hole-shaped broken surface; the bottom of the main body protrudes with an annular bulge, and the annular bulge is sleeved outside the broken surface; a cavity enclosed by the annular bulge and the broken surface is formed by the step-shaped structure and the front mold core in an injection molding mode; the step-shaped structure at the tail end of the rear die insert pin is matched with the shape of a cavity defined by the annular bulge and the broken surface.
The injection molding product is preferably provided with the annular bulge with the height H 1 (ii) a Wherein H 1 Is less than H.
The utility model discloses owing to take above technical scheme, it has following advantage:
the utility model can be reserved in the large-diameter hole of the counter bore through the countersunk end of the rear die insert pin, the tail end of the rear die insert pin is used for contacting with the center of the injection molding product, and the countersunk end of the rear die insert pin and the large-diameter hole of the counter bore have clearance setting; the holding force of the product is released in two sections, thereby solving the problem of local concave pulling of the product; outer the utility model has the advantages of simple structure and convenient operation.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Like reference numerals refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of the mold closing state of the present invention;
FIG. 2 is a schematic structural view of an injection molded product of the present invention;
FIG. 3 is a schematic view of the mold-opened state of the present invention, wherein the injection molding product is located in the rear mold core;
fig. 4 is a schematic structural view of the mold opening state of the present invention, in which the injection molding product is ejected out of the rear mold core by the ejector pin, but the rear mold insert pin is not separated from the injection molding product;
fig. 5 is a schematic structural view of the mold opening state of the present invention, wherein the injection molding product is ejected out of the rear mold core by the ejector pin, and the rear mold insert pin is separated from the injection molding product.
In the drawings, the reference numerals denote the following:
1-a bottom needle plate; 2-a needle board; 3-a first connecting piece; 4-back template; 5-rear mold core; 6-inserting a pin in a rear mold; 7-injection molding of the product; 701-a main body; 702-a broken surface; 703-an annular projection; 8-a thimble; 9-rear mould base plate; 10-a first support plate; 11-a second support plate; 12-a second connector; 13-a top stick; 14-front mould base plate; 15-degumming plates; 16-front template; 17-a tie rod assembly; 18-front mold core.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", 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 simplification of description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "assembled", "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 invention can be understood as a specific case by those skilled in the art.
The utility model provides a mould with postpone mold insert inlays this postpone mold insert of needle through the back mould to with the thimble cooperation, can divide the two-stage process release with the power of holding tightly of product, thereby solved the product part and drawn concave problem.
The mold with the delaying insert and the injection molding product provided by the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a mould with postpone mold insert, include: a bottom needle plate 1; the surface needle plate 2 is arranged above the bottom needle plate 1 in a stacked mode, and the surface needle plate 2 is connected with the bottom needle plate 1 through a first connecting piece 3; the rear template 4 is arranged above the surface needle plate 2, and the top of the surface needle plate 2 and the bottom of the rear template 4 are arranged in a clearance way, namely, a certain distance is reserved between the top of the surface needle plate 2 and the bottom of the rear template 4; the rear mold core 5 is arranged in the center of the rear template 4, and a counter bore is formed in the bottom of the rear mold core 5; the rear die insert pin 6 is of a countersunk structure, the countersunk end of the rear die insert pin 6 is reserved in the large-diameter hole of the counterbore, the tail end of the rear die insert pin passes through the rear die core 5, and in the injection molding process, the tail end of the rear die insert pin 6 is used for contacting with the center of an injection molding product 7 and forming an annular bulge of the injection molding product; the countersunk end of the rear die insert pin 6 and the large-diameter hole of the counter bore are provided with a clearance, and the clearance length is H; and the head end of the ejector pin 8 is fixed with the top of the bottom needle plate 1, the tail end of the ejector pin sequentially penetrates through the surface needle plate 2, the rear mold plate 4 and the rear mold core 5, and the tail end of the ejector pin 8 is used for contacting with the outer edge of the injection molding product 7 and jacking the injection molding product.
In the above embodiment, it is preferable that the rear end of the rear mold insert 6 is provided with a stepped structure, whereby the rear end of the rear mold insert can form an annular projection of the injection molded product during the injection molding process.
In the above embodiment, the present invention preferably further comprises a rear mold bottom plate 9, a first support plate 10 and a second support plate 11; the first supporting plate 10 and the second supporting plate 11 are respectively arranged at two sides of the whole body formed by the bottom needle plate 1 and the surface needle plate 2; the rear template 4, the first supporting plate 10 and the rear template bottom plate 9 are connected together through a second connecting piece 12; the rear mold plate 4, the second support plate 11 and the rear mold base plate 9 are connected together by another second connecting member 12.
In the above embodiment, the present invention preferably further comprises a top roller 13 (see fig. 4), the top end of the top roller 13 is connected to the bottom needle plate 1 after passing through the rear mold bottom plate 9, and the top roller 13 is used for applying an upward jacking force to the bottom needle plate 1.
In the above embodiment, preferably, the ejector pins 8 are plural, and the plural ejector pins 8 are circumferentially arranged around the rear die insert pin 6.
In the above embodiment, preferably, there are two ejector pins 8, and the two ejector pins 8 are respectively disposed on two sides of the rear mold insert 6.
In the above embodiment, preferably, the utility model further comprises a front mold structure, the front mold structure comprises a front mold bottom plate 14, a degumming plate 15 and a front mold plate 16 which are sequentially arranged from top to bottom, and the front mold bottom plate 14, the degumming plate 15 and the front mold plate 16 are connected through a tie rod assembly 17; a front mold core 18 is arranged at the central position of the front template; and a blind hole is arranged on the whole formed by the first supporting plate 10 and the rear template 4; during closing, the tie rod assembly 17 projects into the blind bore. Of course, blind holes may be provided on the whole formed by the second support plate 11 and the rear mold plate 4, and there may be two tie rod assemblies, and when the mold is closed, the two tie rod assemblies extend into the corresponding blind holes.
As shown in fig. 2, the utility model also provides an injection molding product 7, the injection molding product 7 is prepared by the above mold, the injection molding product 7 includes a main body 701, and a through-hole-shaped broken surface 702 is arranged on the main body 701; an annular protrusion 703 protrudes from the bottom of the main body 701, and the annular protrusion 703 is sleeved outside the breaking surface 702; a cavity defined by the annular protrusion 703 and the broken surface 702 is formed by a step-shaped structure matched with the front mold core 18 through injection molding; the tail end of the rear die insert pin 6 is provided with a step-shaped structure, and the step-shaped structure is adapted to the shape of a cavity surrounded by the annular bulge 703 and the broken surface 702.
In the above embodiment, preferably, the height of the annular protrusion 703 is H 1 (ii) a Wherein H 1 Is less than H. Therefore, when the rear die insert pin 6 moves upwards for a distance of H, the annular protrusion 703 can be completely ejected by the ejector pin 8.
As shown in fig. 3, fig. 4 and fig. 5, the using process of the present invention is: firstly, an upward jacking force is applied to a bottom needle plate 1 through a jacking rod 13, the bottom needle plate 1 drives a jacking needle 8 to move upwards, and the annular bulge 703 part of the injection product is jacked out of a rear mold core, meanwhile, a rear mold insert needle 6 is not separated from an injection product 7, and the injection product 7 drives the rear mold insert needle 6 to move upwards until the countersunk end of the rear mold insert needle 6 abuts against the step of the counter bore of the rear mold core 5; at this time, the thimble 8 is continuously moved upward, and the injection product is separated from the rear mold insert 6 because the rear mold insert 6 cannot be moved upward any more. Therefore, the utility model discloses divide the power of holding tightly of product into two-stage process release to the product part has been solved and the concave problem is drawn.
In addition, it should be noted that the mold in this embodiment can be used for injection molding two sets of products, and therefore, each set of products is respectively provided with a rear mold insert pin and a set of ejector pins.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A mold with a delay insert, comprising:
a drive member;
the rear template is arranged above the driving part, and the top of the driving part and the bottom of the rear template are provided with clearance;
the rear mold core is arranged in the center of the rear template, and a counter bore is formed in the bottom of the rear mold core;
the rear die insert pin is of a countersunk structure, the countersunk end of the rear die insert pin is reserved in the large-diameter hole of the counter bore, the tail end of the rear die insert pin penetrates through the rear die core, and the tail end of the rear die insert pin is used for forming an annular bulge of an injection molding product in the injection molding process; the countersunk end of the rear die insert pin and the large-diameter hole of the counterbore are provided with a clearance arrangement, and the clearance length is H;
the head end of the ejector pin is fixedly connected with the driving piece, the tail end of the ejector pin sequentially penetrates through the rear template and the rear mold core, and the tail end of the ejector pin is used for jacking the injection molding product.
2. The mold with the delay insert according to claim 1, wherein the rear end of the rear mold insert pin is provided with a stepped structure.
3. The mold with the delay insert of claim 2, wherein the driving member comprises a bottom pin plate and a face pin plate, the face pin plate is arranged above the bottom pin plate in a stacked manner, and the face pin plate and the bottom pin plate are connected through a first connecting member;
the head end of the thimble is fixed with the top of the bottom needle plate, and the tail end of the thimble penetrates through the surface needle plate, the rear template and the rear mold core in sequence.
4. The mold with the delay insert of claim 2, further comprising a back mold base plate, a first support plate, and a second support plate;
the first supporting plate and the second supporting plate are respectively arranged on two sides of the driving piece;
the rear template, the first supporting plate and the rear template bottom plate are connected together through a second connecting piece; the rear mold plate, the second support plate and the rear mold base plate are connected together by another second connecting member.
5. The mold with the delay insert as claimed in claim 4, further comprising a top rod, the top end of the top rod is connected to the driving member after passing through the back mold bottom plate, the top rod is used for applying an upward top force to the bottom pin plate.
6. The mold with delay insert of claim 2, wherein said plurality of lift pins are circumferentially disposed about said back mold insert pin.
7. The mold with the delay insert according to claim 2, wherein the number of the ejector pins is two, and the two ejector pins are respectively disposed on both sides of the rear mold insert pin.
8. The mold with the delay insert according to claim 4, further comprising a front mold structure, wherein the front mold structure comprises a front mold base plate, a stripper plate and a front mold plate which are arranged in sequence from top to bottom, and the front mold base plate, the stripper plate and the front mold plate are connected through a tie rod assembly; a front mold core is arranged at the central position of the front template;
a blind hole is formed in the whole formed by the first supporting plate and the rear template;
when the die is closed, the pull rod assembly extends into the blind hole.
9. An injection molding product prepared by using the mold of any one of claims 2 to 8, wherein the injection molding product comprises a main body, and a through hole-shaped broken surface is arranged on the main body;
the bottom of the main body protrudes with an annular bulge, and the annular bulge is sleeved outside the broken surface;
a cavity defined by the annular bulge and the broken surface is formed by the step-shaped structure matched with the front mold core through injection molding;
the step-shaped structure at the tail end of the rear die insert pin is matched with the shape of a cavity defined by the annular bulge and the broken surface.
10. An injection moulded product according to claim 9, wherein the height of the annular protrusion is H 1 ；
Wherein H 1 Is less than H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222382437.9U CN218519083U (en) | 2022-09-08 | 2022-09-08 | Mold with delay insert and injection molding product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222382437.9U CN218519083U (en) | 2022-09-08 | 2022-09-08 | Mold with delay insert and injection molding product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218519083U true CN218519083U (en) | 2023-02-24 |
Family
ID=85243867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222382437.9U Active CN218519083U (en) | 2022-09-08 | 2022-09-08 | Mold with delay insert and injection molding product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218519083U (en) |
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2022
- 2022-09-08 CN CN202222382437.9U patent/CN218519083U/en active Active
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