CN113815193A - Injection mold with automatic stub bar excision function - Google Patents

Injection mold with automatic stub bar excision function Download PDF

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Publication number
CN113815193A
CN113815193A CN202111055018.8A CN202111055018A CN113815193A CN 113815193 A CN113815193 A CN 113815193A CN 202111055018 A CN202111055018 A CN 202111055018A CN 113815193 A CN113815193 A CN 113815193A
Authority
CN
China
Prior art keywords
material pulling
pulling rod
fixing plate
stub bar
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111055018.8A
Other languages
Chinese (zh)
Inventor
彭佩
丁宏参
谢家乐
赖敏煜
王财荣
金伟
俞方敏
黄志高
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Fangzheng Tool Co Ltd
Original Assignee
Ningbo Fangzheng Tool Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Fangzheng Tool Co Ltd filed Critical Ningbo Fangzheng Tool Co Ltd
Priority to CN202111055018.8A priority Critical patent/CN113815193A/en
Publication of CN113815193A publication Critical patent/CN113815193A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1759Removing sprues from sprue-channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/38Cutting-off equipment for sprues or ingates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms

Abstract

The invention discloses an injection mold with an automatic stub bar cutting function, which comprises a bottom plate, mold feet, a driving assembly, a first material pulling rod, a second material pulling rod and a movable mold plate for injection molding of a workpiece, wherein the driving assembly comprises an ejector pin fixing plate and a top plate; a plurality of thimbles are fixed on the thimble fixing plate, and the upper end of each thimble movably penetrates through the top plate and then extends into the movable template; a feeding runner is arranged in the movable template, and a barb groove is arranged on the side wall of the feeding runner; the upper end of the first material pulling rod and the upper end of the second material pulling rod both extend into the feeding flow channel, the lower end of the first material pulling rod and the lower end of the second material pulling rod both movably penetrate through the top plate and the thimble fixing plate and then abut against the bottom plate, a first time delay mechanism is arranged between the first material pulling rod and the driving assembly, and a second time delay mechanism is arranged between the second material pulling rod and the driving assembly; according to the invention, after the workpiece is formed by injection molding, in the process of demoulding the workpiece, the stub bar on the workpiece can be automatically cut off.

Description

Injection mold with automatic stub bar excision function
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection mold with a stub bar automatic cutting function.
Background
At present, after the injection mold on the market forms a workpiece through injection molding, a stub bar formed in the injection molding process can be remained on the workpiece, and the stub bar on the workpiece is removed by manually holding a cutter.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the injection mold with the automatic stub bar cutting function, after a workpiece is formed by injection molding, the stub bar on the workpiece can be automatically cut off in the workpiece demolding process, so that the stub bar on the workpiece is not required to be manually cut off, the labor intensity of workers can be reduced, the labor cost can be reduced, and the production efficiency of the workpiece can be improved.
The injection mold with the automatic stub bar cutting function comprises a bottom plate, a mold foot, a driving assembly, a first material pulling rod, a second material pulling rod and a movable mold plate for injection molding of a workpiece, wherein the driving assembly comprises an ejector pin fixing plate and a top plate; a plurality of thimbles which are used for ejecting the workpiece from the driven template when the thimble fixing plate moves upwards are fixed on the thimble fixing plate, and the upper end of each thimble movably penetrates through the top plate and then extends into the driven template; a feeding runner is arranged in the movable template, after the raw material enters the feeding runner, the raw material forms a stub bar in the feeding runner, a sprue is formed between the stub bar and the injection-molded workpiece, and a barb groove for hooking with the stub bar is arranged on the side wall of the feeding runner; the upper end of the first material pulling rod and the upper end of the second material pulling rod extend into the feeding flow channel, the lower end of the first material pulling rod and the lower end of the second material pulling rod movably penetrate through the top plate and the ejector pin fixing plate and then abut against the bottom plate, a first time delay mechanism which orders the first material pulling rod to move upwards in a delayed mode when the ejector pin fixing plate moves upwards is arranged between the first material pulling rod and the driving assembly, and a second time delay mechanism which orders the second material pulling rod to move upwards in a delayed mode when the ejector pin fixing plate moves upwards is arranged between the second material pulling rod and the driving assembly.
The injection mold with the automatic stub bar cutting function comprises a first delay mechanism, a second delay mechanism and a third delay mechanism, wherein the first delay mechanism comprises a first annular boss arranged on the outer peripheral wall of a first pull rod, the first annular boss is positioned between a top plate and an ejector pin fixing plate, and a first sliding cavity for the first annular boss to slide when the ejector pin fixing plate moves upwards is arranged between the ejector pin fixing plate and the top plate; after the first time delay mechanism is adopted, when the ejector fixing plate moves upwards under the driving of the injection molding machine, the ejector fixing plate can push the ejector pin to move upwards, meanwhile, the first annular boss can firstly slide downwards along the first sliding cavity, and in the process that the ejector fixing plate continuously moves upwards, the first material pulling rod can be pushed by the ejector fixing plate and moves upwards, namely, the ejector pin can move upwards in advance of the first material pulling rod, so that the purpose of the first material pulling rod moving upwards in a time delay manner is achieved.
The injection mold with the automatic stub bar cutting function comprises a first time delay mechanism, a second time delay mechanism and a third time delay mechanism, wherein the first time delay mechanism comprises a first annular boss arranged on the outer peripheral wall of a first material pulling rod; after the second delay mechanism is adopted, when the ejector fixing plate moves upwards under the driving of the injection molding machine, the ejector fixing plate can push the ejector pin to move upwards, meanwhile, the second annular boss can firstly slide downwards along the second sliding cavity, and in the process that the ejector fixing plate continuously moves upwards, the second material pulling rod can be pushed by the ejector fixing plate and moves upwards, namely, the ejector pin can move upwards in advance of the second material pulling rod, so that the purpose that the second material pulling rod moves upwards in a delayed mode is achieved.
The injection mold with the automatic stub bar cutting function, disclosed by the invention, is characterized in that when the thimble fixing plate moves to the lower limit position, the distance from the lower end surface of the first annular boss to the inner bottom of the first sliding cavity is the same as the distance from the lower end surface of the second annular boss to the inner bottom of the second sliding cavity; after the structure is adopted, when the thimble fixing plate pushes the first material pulling rod and the second material pulling rod to move upwards, the first material pulling rod and the second material pulling rod can move synchronously.
According to the injection mold with the automatic stub bar cutting function, when the thimble fixing plate moves to the lower limit position, the distance from the lower end face of the first annular boss to the inner bottom of the first sliding cavity and the distance from the lower end face of the second annular boss to the inner bottom of the second sliding cavity are both 7 mm; when the ejector pin fixing plate moves to the lower limit position, namely the ejector pin fixing plate is located at the initial position, the delay requirement that the first material pulling rod and the second material pulling rod move upwards can be met after the distance is adopted.
The injection mold with the automatic stub bar cutting function, disclosed by the invention, is characterized in that the first material pulling rod and the second material pulling rod are distributed along the extending direction of the feeding runner; after the structure is adopted, when the first material pulling rod and the second material pulling rod eject the stub bar, the first material pulling rod and the second material pulling rod can eject the stub bar from the feeding runner more reliably.
The injection mold with the automatic stub bar cutting function, disclosed by the invention, is characterized in that an included angle formed between the inner side surface of the barb groove and a vertical surface is 4-5 degrees; after the inner side surface of the barb groove is set to the angle, the stub bar can be prevented from moving along with the workpiece in the process that the workpiece is ejected by the ejector pin in advance, and in addition, in the process that the stub bar is pushed in the later period of the first material pulling rod and the second material pulling rod, the first material pulling rod and the second material pulling rod can eject the stub bar from the feeding flow channel more easily.
The injection mold with the automatic stub bar cutting function, disclosed by the invention, is characterized in that an included angle formed between the inner side surface of the barb groove and a vertical surface is 5 degrees; after the inner side surface of the barb groove is set to the angle, the stub bar can be prevented from moving along with the workpiece in the process that the workpiece is ejected by the ejector pin in advance, and in addition, in the process that the stub bar is pushed in the later period of the first material pulling rod and the second material pulling rod, the first material pulling rod and the second material pulling rod can eject the stub bar from the feeding flow channel more easily.
According to the invention, after the workpiece is formed by injection molding, the stub bar on the workpiece can be automatically cut off in the workpiece demolding process, so that the stub bar on the workpiece is not required to be manually cut off, the labor intensity of workers can be reduced, the labor cost can be reduced, and the production efficiency of the workpiece can be improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
fig. 4 is an enlarged schematic structural view of B in fig. 2.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The injection mold with the automatic stub bar cutting function comprises a bottom plate 1, a mold foot 11, a driving assembly, a first material pulling rod 4, a second material pulling rod 5 and a movable mold plate 7 for injection molding of a workpiece 6, wherein the driving assembly comprises an ejector pin fixing plate 2 and a top plate 3, the mold foot 11 is fixed on the bottom plate 1, the movable mold plate 7 is fixed on the mold foot 11, the top plate 3 and the ejector pin fixing plate 2 are sequentially arranged between the movable mold plate 7 and the bottom plate 1 from top to bottom, and the top plate 3 is fixed on the ejector pin fixing plate 2; a plurality of thimbles 21 which are used for ejecting the workpiece 6 from the movable template 7 when the thimble fixing plate 2 moves upwards are fixed on the thimble fixing plate 2, and the upper end of each thimble 21 movably penetrates through the top plate 3 and then extends into the movable template 7; the movable die plate 7 is provided with a feeding runner 71, when a raw material enters the feeding runner 71, the raw material forms a stub bar 61 in the feeding runner 71, a sprue 62 is formed between the stub bar 61 and the injection molded workpiece 6, and a barb groove 72 for hooking with the stub bar 61 is arranged on the side wall of the feeding runner 71; the upper end of the first material pulling rod 4 and the upper end of the second material pulling rod 5 both extend into the feeding flow channel 71, the lower end of the first material pulling rod 4 and the lower end of the second material pulling rod 5 both movably penetrate through the top plate 3 and the ejector pin fixing plate 2 and then abut against the bottom plate 1, a first time delay mechanism which drives the first material pulling rod 4 to move upwards in a time delay manner when the ejector pin fixing plate 2 moves upwards is arranged between the first material pulling rod 4 and the driving assembly, and a second time delay mechanism which drives the second material pulling rod 5 to move upwards in a time delay manner when the ejector pin fixing plate 2 moves upwards is arranged between the second material pulling rod 5 and the driving assembly.
The first time delay mechanism comprises a first annular boss 41 arranged on the peripheral wall of the first material pulling rod 4, the first annular boss 41 is positioned between the top plate 3 and the thimble fixing plate 2, and a first sliding cavity 8 for the first annular boss 41 to slide when the thimble fixing plate 2 moves upwards is arranged between the thimble fixing plate 2 and the top plate 3; after the first time delay mechanism is adopted, when the ejector fixing plate moves upwards under the driving of the injection molding machine, the ejector fixing plate can push the ejector pin to move upwards, meanwhile, the first annular boss can firstly slide downwards along the first sliding cavity, and in the process that the ejector fixing plate continuously moves upwards, the first material pulling rod can be pushed by the ejector fixing plate and moves upwards, namely, the ejector pin can move upwards in advance of the first material pulling rod, so that the purpose of the first material pulling rod moving upwards in a time delay manner is achieved.
The second time delay mechanism comprises a second annular boss 51 arranged on the outer peripheral wall of the second material pulling rod 5, the second annular boss 51 is positioned between the top plate 3 and the thimble fixing plate 2, and a second sliding cavity 9 for the second annular boss 51 to slide when the thimble fixing plate 2 moves upwards is arranged between the thimble fixing plate 2 and the top plate 3; after the second delay mechanism is adopted, when the ejector fixing plate moves upwards under the driving of the injection molding machine, the ejector fixing plate can push the ejector pin to move upwards, meanwhile, the second annular boss can firstly slide downwards along the second sliding cavity, and in the process that the ejector fixing plate continuously moves upwards, the second material pulling rod can be pushed by the ejector fixing plate and moves upwards, namely, the ejector pin can move upwards in advance of the second material pulling rod, so that the purpose that the second material pulling rod moves upwards in a delayed mode is achieved.
When the thimble fixing plate 2 moves to the lower limit position, the distance from the lower end surface of the first annular boss 41 to the inner bottom of the first sliding cavity 8 is the same as the distance from the lower end surface of the second annular boss 51 to the inner bottom of the second sliding cavity 9; after the structure is adopted, when the thimble fixing plate pushes the first material pulling rod and the second material pulling rod to move upwards, the first material pulling rod and the second material pulling rod can move synchronously.
When the thimble fixing plate 2 moves to the lower limit position, the distance from the lower end surface of the first annular boss 41 to the inner bottom of the first sliding cavity 8 and the distance from the lower end surface of the second annular boss 51 to the inner bottom of the second sliding cavity 9 are both 7 mm; when the ejector pin fixing plate moves to the lower limit position, namely the ejector pin fixing plate is located at the initial position, the delay requirement that the first material pulling rod and the second material pulling rod move upwards can be met after the distance is adopted.
The first material pulling rod 4 and the second material pulling rod 5 are distributed along the extending direction of the feeding runner 71; after the structure is adopted, when the first material pulling rod and the second material pulling rod eject the stub bar, the first material pulling rod and the second material pulling rod can eject the stub bar from the feeding runner more reliably.
An included angle formed between the inner side surface of the barb groove 72 and the vertical surface is 4-5 degrees; after the inner side surface of the barb groove is set to the angle, the stub bar can be prevented from moving along with the workpiece in the process that the workpiece is ejected by the ejector pin in advance, and in addition, in the process that the stub bar is pushed in the later period of the first material pulling rod and the second material pulling rod, the first material pulling rod and the second material pulling rod can eject the stub bar from the feeding flow channel more easily.
An included angle formed between the inner side surface of the barb groove 72 and the vertical surface is 5 degrees; after the inner side surface of the barb groove is set to the angle, the stub bar can be prevented from moving along with the workpiece in the process that the workpiece is ejected by the ejector pin in advance, and in addition, in the process that the stub bar is pushed in the later period of the first material pulling rod and the second material pulling rod, the first material pulling rod and the second material pulling rod can eject the stub bar from the feeding flow channel more easily.
The bottom plate is fixed on an injection molding machine, and the thimble fixing plate is driven by the injection molding machine; when the injection molding is finished and the demolding is needed, the injection molding machine firstly drives the thimble fixing plate to move upwards for a certain distance (because a first delay mechanism is arranged between the first material pulling rod and the thimble fixing plate and a second delay mechanism is arranged between the second material pulling rod and the thimble fixing plate, the first material pulling rod and the second material pulling rod cannot move upwards at the moment, in addition, the certain distance is 7mm), after the thimble fixing plate moves upwards for a certain distance (the certain distance is 7mm), the thimble fixing plate drives the thimble to move upwards for a certain distance (the certain distance is 7mm), the workpiece on the movable mold plate can be pre-ejected after the thimble moves upwards for a certain distance, in the process of pre-ejecting the workpiece, because the stub bar in the feeding flow passage is in a clamping state with the barb groove and the first material pulling rod and the second material pulling rod do not move, therefore, the workpiece and the stub bar are broken at the sprue, and the purpose of automatically cutting the stub bar by the workpiece is achieved; and then the injection molding machine can continuously drive the ejector pin to move upwards (at the moment, a first annular boss on the first material pulling rod is in a state of abutting against the bottom of the first sliding cavity, a second annular boss on the second material pulling rod is in a state of abutting against the bottom of the second sliding cavity), in the process that the ejector pin fixing plate continuously moves upwards, the ejector pin can completely eject a workpiece on the movable template from the movable template, a stub bar in the feeding flow channel can be ejected from the feeding flow channel by the first material pulling rod and the second material pulling rod, finally, the injection molding machine drives the ejector pin fixing plate to move downwards for resetting, and the first material pulling rod and the second material pulling rod can also move downwards for resetting under the action of gravity.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (8)

1. The utility model provides an injection mold with automatic excision function of stub bar which characterized in that: the injection molding machine comprises a bottom plate (1), mold feet (11), a driving assembly, a first material pulling rod (4), a second material pulling rod (5) and a movable mold plate (7) used for injection molding of a workpiece (6), wherein the driving assembly comprises an ejector pin fixing plate (2) and a top plate (3), the mold feet (11) are fixed on the bottom plate (1), the movable mold plate (7) is fixed on the mold feet (11), the top plate (3) and the ejector pin fixing plate (2) are sequentially arranged between the movable mold plate (7) and the bottom plate (1) from top to bottom, and the top plate (3) is fixed on the ejector pin fixing plate (2); a plurality of thimbles (21) which are used for ejecting a workpiece (6) from the movable template (7) when the thimble fixing plate (2) moves upwards are fixed on the thimble fixing plate (2), and the upper end of each thimble (21) movably penetrates through the top plate (3) and then extends into the movable template (7); a feeding runner (71) is arranged in the movable die plate (7), when raw materials enter the feeding runner (71), a stub bar (61) is formed in the feeding runner (71) by the raw materials, a sprue (62) is formed between the stub bar (61) and the injection-molded workpiece (6), and barb grooves (72) for hooking the stub bar (61) are formed in the side wall of the feeding runner (71); the material pulling device is characterized in that the upper end of the first material pulling rod (4) and the upper end of the second material pulling rod (5) both extend into a feeding flow channel (71), the lower end of the first material pulling rod (4) and the lower end of the second material pulling rod (5) are movably penetrated through the top plate (3) and the thimble fixing plate (2) and then are abutted against the bottom plate (1), a first time delay mechanism which drives the first material pulling rod (4) to move upwards in a time delay manner when the thimble fixing plate (2) moves upwards is arranged between the first material pulling rod (4) and the driving assembly, and a second time delay mechanism which drives the second material pulling rod (5) to move upwards in a time delay manner when the thimble fixing plate (2) moves upwards is arranged between the second material pulling rod (5) and the driving assembly.
2. The injection mold with the automatic stub bar cutting function according to claim 1, wherein the first delay mechanism comprises a first annular boss (41) arranged on the peripheral wall of the first material pulling rod (4), the first annular boss (41) is located between the top plate (3) and the ejector fixing plate (2), and a first sliding cavity (8) for sliding the first annular boss (41) when the ejector fixing plate (2) moves upwards is arranged between the ejector fixing plate (2) and the top plate (3).
3. The injection mold with the automatic stub bar cutting function according to claim 2, wherein the second delay mechanism comprises a second annular boss (51) arranged on the outer peripheral wall of the second pull rod (5), the second annular boss (51) is located between the top plate (3) and the ejector fixing plate (2), and a second sliding cavity (9) for allowing the second annular boss (51) to slide when the ejector fixing plate (2) moves upwards is arranged between the ejector fixing plate (2) and the top plate (3).
4. The injection mold with the automatic stub bar cutting function according to claim 3, wherein when the thimble fixing plate (2) moves to the lower limit position, the distance from the lower end surface of the first annular boss (41) to the inner bottom of the first slide chamber (8) is the same as the distance from the lower end surface of the second annular boss (51) to the inner bottom of the second slide chamber (9).
5. The injection mold with the automatic stub bar cutting function according to claim 4, wherein when the thimble fixing plate (2) moves to the lower limit position, the distance from the lower end surface of the first annular boss (41) to the inner bottom of the first sliding cavity (8) and the distance from the lower end surface of the second annular boss (51) to the inner bottom of the second sliding cavity (9) are both 7 mm.
6. The injection mold with the automatic stub bar cutting function according to claim 1, wherein the first and second stub bars (4, 5) are distributed along the extending direction of the feeding runner (71).
7. The injection mold with the automatic stub bar cutting function according to claim 1, wherein an included angle formed between the inner side surface of the barb groove (72) and a vertical surface is 4-5 degrees.
8. The injection mold with the automatic stub bar cutting function according to claim 7, wherein an included angle formed between the inner side surface of the barb groove (72) and a vertical surface is 5 degrees.
CN202111055018.8A 2021-09-09 2021-09-09 Injection mold with automatic stub bar excision function Pending CN113815193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111055018.8A CN113815193A (en) 2021-09-09 2021-09-09 Injection mold with automatic stub bar excision function

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Application Number Priority Date Filing Date Title
CN202111055018.8A CN113815193A (en) 2021-09-09 2021-09-09 Injection mold with automatic stub bar excision function

Publications (1)

Publication Number Publication Date
CN113815193A true CN113815193A (en) 2021-12-21

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CN202111055018.8A Pending CN113815193A (en) 2021-09-09 2021-09-09 Injection mold with automatic stub bar excision function

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN114801079A (en) * 2022-06-23 2022-07-29 昆山昶捷精密模具工业有限公司 Material head type rotary ejection die structure for stretch breaking in automobile decoration strip die

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CN108127874A (en) * 2018-01-15 2018-06-08 青岛海泰科模具有限公司 One kind is from dynamic circuit breaker cast gate injection mold
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Publication number Priority date Publication date Assignee Title
CN205148818U (en) * 2015-12-03 2016-04-13 陈婵娟 Device is expected with fixed attention to automatic cutout runner of many types of chamber of some runner list die joint mould
CN108127874A (en) * 2018-01-15 2018-06-08 青岛海泰科模具有限公司 One kind is from dynamic circuit breaker cast gate injection mold
CN209955196U (en) * 2019-05-28 2020-01-17 青岛汉普森智能科技有限公司 Injection mold with time delay ejection mechanism
CN211683302U (en) * 2019-12-09 2020-10-16 苏州中悦百毅光电科研开发有限公司 Injection mold with automatic side gate cutting function

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114801079A (en) * 2022-06-23 2022-07-29 昆山昶捷精密模具工业有限公司 Material head type rotary ejection die structure for stretch breaking in automobile decoration strip die
CN114801079B (en) * 2022-06-23 2022-09-06 昆山昶捷精密模具工业有限公司 Material head type rotary ejection die structure for stretch breaking in automobile decoration strip die

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Application publication date: 20211221

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