CN110900979B - Sprue bushing assembly - Google Patents
Sprue bushing assembly Download PDFInfo
- Publication number
- CN110900979B CN110900979B CN201911128788.3A CN201911128788A CN110900979B CN 110900979 B CN110900979 B CN 110900979B CN 201911128788 A CN201911128788 A CN 201911128788A CN 110900979 B CN110900979 B CN 110900979B
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- China
- Prior art keywords
- rotation stopping
- bush
- plane
- sprue
- sprue bush
- 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.)
- Expired - Fee Related
Links
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a sprue bush assembly which comprises a sprue bush and a rotation stopping lifting device, wherein the sprue bush comprises a sprue bush body and a runner; the sprue bush comprises a first bush body and a second bush body which is assembled at one end of the first bush body in an abutting mode; the first sleeve body comprises a first body and a first flow passage which penetrates through the first body along the axial direction of the first body, the second sleeve body comprises a second body and a second flow passage which penetrates through the second body along the axial direction of the second body, the second flow passage is communicated with the first flow passage, and the periphery of the second body is cut along the axial direction of the second body to form a first rotation stopping plane; the rotation stopping lifting device comprises a body part and a boss part, wherein the body part is parallel to the sprue bush, the boss part extends from the body part in a protruding mode, the boss part abuts against the first rotation stopping plane and enables one end, close to the second body, of the first body to be supported on the boss part, and the boss part is in plane contact with the first rotation stopping plane to realize rotation stopping limiting of the second bush body. Compared with the related art, the sprue bush assembly is simple to process, high in installation reliability and easy to disassemble.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of molds, in particular to a sprue bush assembly.
[ background of the invention ]
In the injection molding process, the sprue bush is an essential part for injection molding, and therefore, the design and optimization of the structure of the sprue bush also become important problems for the development of the mold field.
The related art sprue bush comprises a sprue bush body and a runner penetrating through the sprue bush body, the sprue bush is generally of an integrally formed structure, and the runner is usually required to be polished; in actual use, the sprue bush is inserted into the sprue bush hole of the mold, and the length of the sprue bush is determined according to the depth of the sprue bush hole.
However, in the related art, when the gate sleeve hole of the mold is deep, the length of the corresponding gate sleeve is long, and it is difficult to polish the internal runner, so that the processing difficulty is high; meanwhile, the sprue bush inserted inside the die is inconvenient to install and not easy to detach.
Therefore, there is a need to provide a new sprue bush assembly that solves the above-mentioned problems.
[ summary of the invention ]
The invention aims to provide a sprue bush assembly which is simple to machine, high in installation reliability and easy to disassemble.
To achieve the above object, the present invention provides a sprue bush assembly comprising:
the sprue bush comprises a first bush body and a second bush body which is assembled at one end of the first bush body in an abutting mode; the first sleeve body comprises a first body and a first flow passage which penetrates through the first body along the axial direction of the first body, the second sleeve body comprises a second body and a second flow passage which penetrates through the second body along the axial direction of the second body, the second flow passage is communicated with the first flow passage, and the periphery of the second body is cut along the axial direction of the second body to form a first rotation stopping plane; and
the rotation stopping lifting device comprises a body part and a boss part, the body part is parallel to the sprue bush, the boss part extends from the body part in a protruding mode, the boss part abuts against the first rotation stopping plane and enables one end, close to the second body, of the first body to be supported on the boss part, and the boss part and the first rotation stopping plane are in plane contact to achieve rotation stopping limiting of the second bush body.
Preferably, the body portion includes a top surface and a bottom surface which are oppositely arranged at intervals, and a first side surface, a second side surface, a third side surface and a fourth side surface which are respectively connected with the top surface and the bottom surface, the first side surface and the second side surface are oppositely arranged at intervals, the first side surface is positioned at one side of the body portion close to the sprue bush, and the second side surface is positioned at one side of the body portion far away from the sprue bush; the boss part is formed by protruding and extending one side of the first side surface, which is close to the second body; the boss portion comprises a second rotation stopping plane and a supporting surface, the second rotation stopping plane is arranged at an interval with the first side surface, the supporting surface is connected with the second rotation stopping plane and the first side surface, one end, close to the second body, of the first body is supported on the supporting surface, and the second rotation stopping plane is abutted to the first rotation stopping plane.
Preferably, the first side surface and the second side surface are both planar, and the first side surface is parallel to the second side surface.
Preferably, the sprue bush assembly further comprises a pulling structure, and the pulling structure is fixed to the rotation stopping pulling device and used for pulling the sprue bush assembly when the sprue bush assembly is installed.
Preferably, the lifting structure comprises a lifting screw, the top surface of the body part is recessed to form a threaded hole, and the lifting screw is in threaded connection with the body part through the threaded hole.
Preferably, the second body comprises a first section abutting against the first body and a second section protruding from one side of the first body away from the first section, the outer diameter of the first section is larger than that of the second section, and the first rotation stopping plane is arranged on the periphery of the first section.
Preferably, the first section includes a connection surface abutting against the first body, a positioning surface arranged opposite to the connection surface at an interval and used for mounting and positioning the second sleeve, and a peripheral wall connecting the connection surface and the positioning surface, and the first rotation-stopping plane extends from the connection surface to the positioning surface and is connected with the peripheral wall.
Compared with the prior art, the sprue bush assembly has the advantages that the sprue bush is of a split structure due to the arrangement of the first bush body and the second bush body, and the first bush body and the second bush body can be respectively machined during machining, so that the machining difficulty of the sprue bush is reduced, and the sprue bush assembly is convenient to machine; in addition, the boss part of the rotation stopping and pulling device is abutted against the first rotation stopping plane of the second sleeve body, plane contact is achieved between the boss part and the first rotation stopping plane, rotation stopping and limiting of the second sleeve body are effectively achieved, the second sleeve body is prevented from rotating around a central shaft of the second sleeve body, reliability of installation of the sprue bush assembly is improved, meanwhile, due to the fact that one end, close to the second body, of the first body is supported on the boss part, when the rotation stopping and pulling device is pulled from the outside of the die, the boss part drives the sprue bush to be pulled out of the die, and the sprue bush is simple in detaching process and easy to detach.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a perspective view of a sprue bushing assembly according to the present invention;
FIG. 2 is a schematic view of another angular perspective of the sprue bushing assembly of the present invention;
FIG. 3 is an exploded perspective view of a sprue bushing assembly according to the present invention;
fig. 4 is a schematic cross-sectional view of a sprue bushing assembly of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
Referring also to fig. 1-4, the present invention provides a sprue bushing assembly 100 including a sprue bushing 1 and a twist-stop pulling apparatus 2.
The sprue bush assembly 100 is applied to, but not limited to, an injection molding process, and in practical applications, the sprue bush assembly 100 needs to be inserted inside a sprue bush hole of a mold (not shown) so as to pour plastic into an inner cavity of the mold through the sprue bush assembly 100.
In the present embodiment, the sprue bush 1 serves as a plastic pouring channel and includes a first bush body 11 and a second bush body 12 fitted in abutment with one end of the first bush body 11.
The first sleeve 11 includes a first body 111 and a first flow passage 110 disposed through the first body 111 along an axial direction of the first body 111. Here, it should be noted that the shape of the first sleeve 11 is not limited, and in practical applications, the first sleeve 11 is cylindrical to facilitate the installation and removal of the first sleeve 11 in the sprue bushing; of course, the specific shape of the first topic 11 can be specifically set according to the actual use situation.
The second sleeve body 12 includes a second body 121 and a second flow passage 120 disposed through the second body 121 along an axial direction of the second body 121, and the second flow passage 120 is communicated with the first flow passage 110; since the end of the second body 121 far from the first body 111 is a plastic outlet, which is generally complex in shape, in order to ensure the reliability of the injection molding process, a rotation stop structure should be disposed on the second sleeve 12 to prevent the second sleeve 12 from rotating relatively after being assembled in the gate socket of the mold, and therefore, in this embodiment, the outer periphery of the second body 121 is cut along the axial direction thereof to form a first rotation stop plane 1211a for stopping the rotation of the second body 121.
Further, the second body 121 includes a first section 1211 abutting against the first body 111 and a second section 1212 protruding from a side of the first section 1211 away from the first body 111, an outer diameter of the first section 1211 is greater than an outer diameter of the second section 1212, the second flow channel 120 respectively penetrates through the first section 1211 and the second section 1212, and the first rotation stop plane 1211a is disposed on an outer periphery of the first section 1211.
The first section 1211 further includes a connecting surface 1211b, a positioning surface 1211c and a peripheral wall 1211 d; the connecting surface 1211b abuts against the first body 111, the positioning surface 1211c is disposed opposite to the connecting surface 1211b at an interval, when the second sleeve 12 is inserted into the gate sleeve hole of the mold, the positioning surface 1211c is supported on an inner wall of the gate sleeve hole to realize the mounting and positioning of the second sleeve 12 on the mold, the peripheral wall 1211d connects the connecting surface 1211b and the positioning surface 1211c, and the first rotation stop plane 1211a extends from the connecting surface 1211b to the positioning surface 1211c and is connected to the peripheral wall 1211 d.
The rotation-stopping pulling device 2 comprises a body part 21 arranged parallel to the sprue bush 1 and a boss part 22 extending from the body part 21 in a protruding mode, the boss part 22 abuts against the first rotation-stopping plane 1211a, and the boss part 22 is in plane contact with the first rotation-stopping plane 1211a to realize rotation-stopping limiting of the second bush body 12; one end of the first body 111 close to the second body 121 is supported by the boss portion 22, that is, a part of an end surface of the first body 111 close to one end of the second body 121 is connected to the connecting surface 1211b, and another part is supported by the boss portion 22.
Further, the body portion 21 includes a top surface 211 and a bottom surface 212 disposed at an interval and a first side surface 213, a second side surface 214, a third side surface 215, and a fourth side surface 216 respectively connecting the top surface 211 and the bottom surface 212. The first side surface 213 and the second side surface 214 are disposed at an interval, and the first side surface 213 is located on a side of the body portion 21 close to the sprue bush 1, and the second side surface 214 is located on a side of the body portion 21 away from the sprue bush 1. The boss portion 22 is formed by extending the first side surface 213 adjacent to the second body 121; the boss portion 22 includes a second rotation stopping plane 221 spaced apart from the first side surface 213 and a supporting surface 222 connecting the second rotation stopping plane 221 and the first side surface 213, one end of the first body 111 close to the second body 121 is supported on the supporting surface 222, and the second rotation stopping plane 221 abuts against the first rotation stopping plane 1211a to limit rotation of the second sleeve body 12.
It is worth mentioning that the first side surface 213 and the second side surface 214 are both planar, and the first side surface 213 is parallel to the second side surface 214.
In the structure, the sprue bush 1 is a split structure formed by the first bush body 11 and the second bush body 12, and the first bush body 11 and the second bush body 12 can be respectively machined during machining through the split structure, so that the first runner 110 and the second runner 120 can be respectively polished, the machining difficulty of the sprue bush 1 is greatly reduced, the sprue bush assembly 100 is convenient to machine, and the machining cost is saved.
In addition, the boss portion 22 of the rotation stopping pulling device 2 abuts against the first rotation stopping plane 1211a of the second sleeve body 12, and the two are in plane contact, so that rotation stopping limiting of the second sleeve body 12 is effectively achieved, the second sleeve body 12 is prevented from rotating around the central axis of the second sleeve body, the reliability of installation of the sprue bush assembly 100 is improved, meanwhile, the sprue bush 1 is supported on the boss portion 22, when the rotation stopping pulling device 2 is pulled from the outside of a mold, the boss portion 22 drives the first sleeve body 11 to be pulled out of the mold, and the first sleeve body 11 is made to be detached simply and easily.
For easier mounting and dismounting of the sprue bush assembly 100, preferably, the sprue bush assembly 100 further includes a pulling structure (not shown) fixed to the whirl-stop pulling means 2; the lifting structure is used to lift the sprue bushing assembly 100 when the sprue bushing assembly 100 is installed or removed. Further, the pulling structure includes a pulling screw (not shown), the top surface 211 of the body portion 21 is recessed to form a threaded hole 20, and the pulling screw is screwed with the body portion 211 through the threaded hole 20. After the sprue bush assembly 100 is installed in a mold, the lifting screw is located outside a sprue bush hole of the mold, and the sprue bush assembly 100 can be pulled out directly by lifting the lifting screw, so that the sprue bush assembly is convenient to disassemble and the damaged sprue bush assembly is convenient to replace.
Compared with the prior art, the sprue bush assembly has the advantages that the sprue bush is of a split structure due to the arrangement of the first bush body and the second bush body, and the first bush body and the second bush body can be respectively machined during machining, so that the machining difficulty of the sprue bush is reduced, and the sprue bush assembly is convenient to machine; in addition, the boss part of the rotation stopping and pulling device is abutted against the first rotation stopping plane of the second sleeve body, plane contact is achieved between the boss part and the first rotation stopping plane, rotation stopping and limiting of the second sleeve body are effectively achieved, the second sleeve body is prevented from rotating around a central shaft of the second sleeve body, reliability of installation of the sprue bush assembly is improved, meanwhile, due to the fact that one end, close to the second body, of the first body is supported on the boss part, when the rotation stopping and pulling device is pulled from the outside of the die, the boss part drives the sprue bush to be pulled out of the die, and the sprue bush is simple in detaching process and easy to detach.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (7)
1. A sprue bushing assembly, comprising:
the sprue bush comprises a first bush body and a second bush body which is assembled at one end of the first bush body in an abutting mode; the first sleeve body comprises a first body and a first flow passage which penetrates through the first body along the axial direction of the first body, the second sleeve body comprises a second body and a second flow passage which penetrates through the second body along the axial direction of the second body, the second flow passage is communicated with the first flow passage, and the periphery of the second body is cut along the axial direction of the second body to form a first rotation stopping plane; and
the rotation stopping lifting device comprises a body part and a boss part, the body part is parallel to the sprue bush, the boss part extends from the body part in a protruding mode, the boss part abuts against the first rotation stopping plane and enables one end, close to the second body, of the first body to be supported on the boss part, and the boss part and the first rotation stopping plane are in plane contact to achieve rotation stopping limiting of the second bush body.
2. The sprue bushing assembly of claim 1 wherein said body portion includes top and bottom surfaces in spaced apart relation and first, second, third and fourth sides connecting said top and bottom surfaces, respectively, said first side being in spaced apart relation to said second side and said first side being on a side of said body portion adjacent said sprue bushing and said second side being on a side of said body portion remote from said sprue bushing; the boss part is formed by protruding and extending one side of the first side surface, which is close to the second body; the boss portion comprises a second rotation stopping plane and a supporting surface, the second rotation stopping plane is arranged at an interval with the first side surface, the supporting surface is connected with the second rotation stopping plane and the first side surface, one end, close to the second body, of the first body is supported on the supporting surface, and the second rotation stopping plane is abutted to the first rotation stopping plane.
3. The sprue bushing assembly of claim 2 wherein the first side and the second side are both planar and the first side is parallel to the second side.
4. The sprue bushing assembly according to claim 2, further comprising a pulling structure secured to said anti-rotation pulling apparatus for pulling said sprue bushing assembly when said sprue bushing assembly is installed.
5. The sprue bushing assembly of claim 4 wherein the pull structure includes a pull screw, the top surface of the body portion recessed to form a threaded bore through which the pull screw is threadably connected to the body portion.
6. The sprue bushing assembly of claim 1 wherein the second body includes a first section abutting the first body and a second section projecting from the first section away from the first body, the first section having an outer diameter greater than an outer diameter of the second section, the first anti-rotation plane being disposed about an outer periphery of the first section.
7. The sprue bush assembly of claim 6, wherein the first segment includes a connecting surface abutting against the first body, a positioning surface spaced apart from the connecting surface and used for mounting and positioning the second sleeve, and a peripheral wall connecting the connecting surface and the positioning surface, and the first rotation-stopping plane extends from the connecting surface to the positioning surface and is connected to the peripheral wall.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911128788.3A CN110900979B (en) | 2019-11-18 | 2019-11-18 | Sprue bushing assembly |
| PCT/CN2019/123853 WO2021097951A1 (en) | 2019-11-18 | 2019-12-07 | Sprue bush assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911128788.3A CN110900979B (en) | 2019-11-18 | 2019-11-18 | Sprue bushing assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110900979A CN110900979A (en) | 2020-03-24 |
| CN110900979B true CN110900979B (en) | 2021-05-14 |
Family
ID=69818075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911128788.3A Expired - Fee Related CN110900979B (en) | 2019-11-18 | 2019-11-18 | Sprue bushing assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110900979B (en) |
| WO (1) | WO2021097951A1 (en) |
Citations (10)
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| US6315549B1 (en) * | 1999-03-19 | 2001-11-13 | Husky Injection Molding Systems Ltd. | Hot tip insulator retainer |
| CN202480325U (en) * | 2011-11-30 | 2012-10-10 | 富港电子（东莞）有限公司 | Mold runner structure |
| CN205056999U (en) * | 2015-10-27 | 2016-03-02 | 旭东压铸（上海）有限公司 | Runner cover |
| CN205588570U (en) * | 2016-05-14 | 2016-09-21 | 阮建铭 | Injection mold special parts |
| CN206200104U (en) * | 2016-12-01 | 2017-05-31 | 四川长虹技佳精工有限公司 | The split type sprue bush structure of compression mod |
| CN206913597U (en) * | 2017-04-28 | 2018-01-23 | 昆山武匠金属制品有限公司 | A kind of die gate casing |
| CN108145921A (en) * | 2018-02-08 | 2018-06-12 | 中日龙电器制品(杭州)有限公司 | Split type sprue bush and preparation method thereof |
| CN208197453U (en) * | 2018-02-08 | 2018-12-07 | 中日龙电器制品(杭州)有限公司 | Split type sprue bush |
| CN109501152A (en) * | 2018-12-30 | 2019-03-22 | 柳道万和(苏州)热流道系统有限公司 | Hot nozzle structure |
| CN208697871U (en) * | 2018-08-08 | 2019-04-05 | 南京工业职业技术学院 | A kind of injection mold sprue bush easy to disassemble and fixed |
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| DE19848188A1 (en) * | 1998-10-20 | 2000-04-27 | Incoe Int Inc | Nozzles for injection molding systems |
| DE102015122655A1 (en) * | 2015-12-22 | 2017-06-22 | Günther Heisskanaltechnik Gmbh | Insert for an injection molding nozzle and injection molding nozzle with such an insert |
| DE102017107443A1 (en) * | 2017-04-06 | 2018-10-11 | Günther Heisskanaltechnik Gmbh | Insert for use in an injection molding nozzle and injection molding nozzle with such an insert |
| CN209580357U (en) * | 2019-01-04 | 2019-11-05 | 大连超伟精密模具有限公司 | A kind of spliced spot pouring mouth nested structure |
| CN110385829B (en) * | 2019-07-26 | 2021-09-21 | 苏州亿源精密模具有限公司 | Precision injection mold with cooling water channel |
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2019
- 2019-11-18 CN CN201911128788.3A patent/CN110900979B/en not_active Expired - Fee Related
- 2019-12-07 WO PCT/CN2019/123853 patent/WO2021097951A1/en active Application Filing
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| US6315549B1 (en) * | 1999-03-19 | 2001-11-13 | Husky Injection Molding Systems Ltd. | Hot tip insulator retainer |
| CN202480325U (en) * | 2011-11-30 | 2012-10-10 | 富港电子（东莞）有限公司 | Mold runner structure |
| CN205056999U (en) * | 2015-10-27 | 2016-03-02 | 旭东压铸（上海）有限公司 | Runner cover |
| CN205588570U (en) * | 2016-05-14 | 2016-09-21 | 阮建铭 | Injection mold special parts |
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| CN208197453U (en) * | 2018-02-08 | 2018-12-07 | 中日龙电器制品(杭州)有限公司 | Split type sprue bush |
| CN208697871U (en) * | 2018-08-08 | 2019-04-05 | 南京工业职业技术学院 | A kind of injection mold sprue bush easy to disassemble and fixed |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110900979A (en) | 2020-03-24 |
| WO2021097951A1 (en) | 2021-05-27 |
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Granted publication date: 20210514 |