CN109676859B - Engine base body hardware shell injection mold and machining process - Google Patents
Engine base body hardware shell injection mold and machining process Download PDFInfo
- Publication number
- CN109676859B CN109676859B CN201811530082.5A CN201811530082A CN109676859B CN 109676859 B CN109676859 B CN 109676859B CN 201811530082 A CN201811530082 A CN 201811530082A CN 109676859 B CN109676859 B CN 109676859B
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- Prior art keywords
- hardware
- injection mold
- slot
- engine base
- piece
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Classifications
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- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
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- 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
- B29C45/2602—Mould construction elements
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14122—Positioning or centering articles in the mould using fixed mould wall projections for centering the insert
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14147—Positioning or centering articles in the mould using pins or needles penetrating through the insert
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
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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 relates to an injection mold for an engine base body hardware shell and a processing technology, wherein the injection mold comprises: the die comprises a lower die base, wherein an installation groove is formed in the die base; the lead-in piece is arranged in the mounting groove and is provided with a slot matched with the electrode joint; and the insert pin is arranged on the lower die base and is matched with the connecting hole of the hardware. When the hardware is installed on the lower die holder, the hardware is pre-positioned by matching the insert pin with the connecting hole of the hardware, and then the hardware is pressed downwards to enable the motor connector to be inserted into the slot, so that the electrode connector can be fixed; because the leading-in piece snap-on is on the die holder, make leading-in piece and die holder firm fixed, when motor joint inserts the slot, the leading-in piece can not take place the pine and take off to reduce the emergence of moulding-die phenomenon, reduced the rejection rate.
Description
Technical Field
The invention relates to the technical field of molds, in particular to an injection mold for an engine base body hardware shell and a machining process.
Background
The outside of engine base body hardware needs cladding one deck plastic casing, when the shell of shaping engine base body hardware, needs to fix the electrode joint (PIN needle) of hardware, as shown in fig. 1, electrode joint 41 sets up the one side at hardware 4, and is equipped with a plurality of connecting holes 42 in hardware 4's circumference. The current fixing mode is as follows: the male die core is internally provided with an insert and an insert pin, and is also provided with a lead-in piece, the lead-in piece is provided with a slot which is spliced with the electrode connector, when the male die core is installed, the electrode connector of the hardware is firstly inserted into the slot, the insert pin is matched with the connecting hole to pre-position the hardware and the lead-in piece, and the lead-in piece is connected with the insert to realize the fixation of the electrode connector; because the leading-in part is movable, the phenomenon that the leading-in part loosens and drops exists in the process of being installed in the die, the die is pressed, and the rejection rate of products is high.
Disclosure of Invention
In order to solve the technical problems, the invention provides an injection mold for an engine base body hardware shell and a machining process, and the injection mold has the advantage of reducing the rejection rate.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an engine base hardware housing injection mold comprising:
the die comprises a lower die base, wherein an installation groove is formed in the die base;
the lead-in piece is arranged in the mounting groove and is provided with a slot matched with the electrode joint; and the number of the first and second groups,
and the insert pin is arranged on the lower die base and is matched with the connecting hole of the hardware.
When the hardware is installed on the lower die base, the hardware is pre-positioned by matching the insert pin with the connecting hole of the hardware, and then the hardware is pressed downwards to enable the motor connector to be inserted into the slot, so that the electrode connector can be fixed; because the leading-in piece snap-on is on the die holder, make leading-in piece and die holder firm fixed, when motor joint inserts the slot, the leading-in piece can not take place the pine and take off to reduce the emergence of moulding-die phenomenon, reduced the rejection rate.
As a preferable aspect of the present invention, the introducing member includes: the fixture comprises a fixing part and a connecting part arranged at one end of the fixing part, wherein a fixture block protruding towards one side is arranged at the bottom of the fixing part, and a clamping groove matched with the fixture block is arranged on the side wall of the mounting groove; the slot is arranged on the connecting part.
According to the technical scheme, the clamping block is matched with the clamping groove, so that the guide-in piece is more firmly and stably fixed in the mounting groove.
As a preferable scheme of the present invention, the edge of the side wall of the slot is arc-shaped.
By the technical scheme, the electrode connectors can be conveniently inserted into the slots, and the accuracy of hardware positioning is improved.
As a preferable scheme of the present invention, a limiting step is formed between the fixing portion and the connecting portion, and an abutting member abutting against the limiting step is provided on the lower die holder.
According to the technical scheme, the abutting pieces abut against the limiting steps, so that the guiding piece is fixed more firmly and stably.
In a preferred embodiment of the present invention, the insert pin has a chamfered end.
By the technical scheme, the hardware can be conveniently inserted into the connecting hole.
In another aspect, the invention also provides a process for machining an engine base hardware casing, characterized in that the process is based on an injection mold according to any one of claims 1 to 5, comprising:
heating the hardware to be processed to a preset temperature;
mounting the heated hardware on the lower die holder, and inserting the insert pin into the slot through a connecting hole and an electrode joint of the hardware;
and (5) clamping the mold and performing injection molding to form the shell.
As a preferable embodiment of the present invention, the predetermined temperature is 70 to 90 ℃.
According to the technical scheme, the guide-in piece is fixed in the lower die base, so that the guide-in piece cannot loosen and fall off in the machining process, and the rejection rate is reduced; because the hardware is heated before injection molding, the temperature difference between the surface temperature of the hardware and the temperature of the injection molded shell is small, and the deformation caused by the cold of the shell is reduced.
In conclusion, the invention has the following beneficial effects:
the embodiment of the invention provides an injection mold for an engine base body hardware shell and a processing technology, wherein the injection mold comprises: the die comprises a lower die base, wherein an installation groove is formed in the die base; the lead-in piece is arranged in the mounting groove and is provided with a slot matched with the electrode joint; and the insert pin is arranged on the lower die base and is matched with the connecting hole of the hardware. When the hardware is installed on the lower die holder, the hardware is pre-positioned by matching the insert pin with the connecting hole of the hardware, and then the hardware is pressed downwards to enable the motor connector to be inserted into the slot, so that the electrode connector can be fixed; because the leading-in piece snap-on is on the die holder, make leading-in piece and die holder firm fixed, when motor joint inserts the slot, the leading-in piece can not take place the pine and take off to reduce the emergence of moulding-die phenomenon, reduced the rejection rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an engine base hardware in the background art of the present invention.
Fig. 2 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a lead-in member according to a first embodiment of the invention.
Fig. 4 is a front view of a lead-in member according to a first embodiment of the present invention.
FIG. 5 is a process flow diagram of a second embodiment of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. a lower die holder; 11. mounting grooves; 12. a card slot; 13. an abutting member; 2. a lead-in member; 21. a fixed part; 22. a connecting portion; 23. a slot; 24. a clamping block; 25. a limiting step; 3. inserting a needle; 4. hardware; 41. an electrode tab; 42. and connecting the holes.
Detailed Description
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.
Example one
An engine base hardware 4 shell injection mold, as shown in fig. 2-4, comprising: the die holder 1 is internally provided with an installation groove 11; the leading-in piece 2 is arranged in the mounting groove 11, and the leading-in piece 2 is provided with a slot 23 matched with the electrode joint 41; and the insert pin 3 is arranged on the lower die holder 1 and is matched with the connecting hole 42 of the hardware 4.
Specifically, the inlet 2 includes: the fixing part 21 and the connecting part 22 are arranged at one end of the fixing part 21, the bottom of the fixing part 21 is provided with a clamping block 24 protruding towards one side, and correspondingly, the side wall of the mounting groove 11 is provided with a clamping groove 12 matched with the clamping block 24; the inserting groove 23 is formed in the connecting portion 22, edges of side walls of the inserting groove 23 are arranged in an arc shape, so that the electrode connector 41 can be conveniently inserted into the inserting groove 23, the positioning accuracy of the hardware 4 is improved, and meanwhile, the end portion of the insert pin 3 is provided with a chamfer so as to be conveniently inserted into the connecting hole 42 of the hardware 4; the fixture block 24 is matched with the fixture groove 12, so that the leading-in part 2 is more firmly and stably fixed in the installation groove 11.
Furthermore, a limit step 25 is formed between the fixing portion 21 and the connecting portion 22, an abutting piece 13 abutting against the limit step 25 is arranged on the lower die holder 1, and the abutting piece 13 abuts against the limit step 25, so that the guiding-in piece 2 is fixed more firmly and stably.
When the hardware 4 is installed on the lower die holder 1, the hardware 4 is prepositioned by matching the insert pin 3 with the connecting hole 42 of the hardware 4, and then the hardware 4 is pressed downwards to enable the motor connector to be inserted into the slot 23, so that the electrode connector 41 can be fixed; because with leading-in 2 snap-on die holder 1, make leading-in 2 firm fixed with die holder 1, when motor joint inserts slot 23, leading-in 2 can not take place to loosen to reduce the emergence of moulding-die phenomenon, reduced the rejection rate.
Example two
A processing technology of an engine base hardware 4 shell is realized on the basis of an injection mold in the first embodiment, and as shown in FIG. 5, the processing technology comprises the following steps:
501, the hardware 4 to be processed is heated to a preset temperature.
Usually process through a processing tool hardware 4, this tool includes a metal ontology, set up the storage tank that supplies hardware 4 to place on the metal ontology, inside at the metal ontology is provided with the hot runner, the hot runner can be reciprocal shape of returning and arrange, the entry and the export of hot runner all are linked together with the external world, the hot runner entry links to each other with heat-conducting liquid heating equipment, and flow back heat-conducting liquid to heating equipment through the pipeline in, carry the heat through heat-conducting liquid, and with on hardware 4 heat transfer through the metal ontology, thereby heat hardware 4, the predetermined temperature is 70-90 ℃, set heating temperature as 85 ℃ in this embodiment.
The heated hardware 4 is mounted on the lower die holder 1, and the insert pin 3 is inserted into the insertion groove 23 through the connection hole 42 of the hardware 4 and the electrode tab 41.
When the electrode connector 41 is installed, the inserting pin 3 is inserted into the connecting hole 42 after the electrode connector 41 corresponds to the lead-in pin, the hardware 4 is pre-positioned through the inserting pin 3, then the hardware 4 is pressed downwards to insert the electrode connector 41 into the slot 23, and the electrode connector 41 is fixed.
503, clamping the mold and performing injection molding to form the housing.
The complete die comprises a lower die base 1 and an upper die base, wherein the upper die base and the lower die base 1 surround to form a forming die cavity for processing the shell, and therefore the complete shell can be formed by injection molding after die assembly.
The lead-in piece 2 is fixed in the lower die holder 1, so that the lead-in piece 2 cannot loosen and fall off in the processing process, and the rejection rate is reduced; because the hardware 4 is heated before injection molding, the temperature difference between the temperature of the surface of the hardware 4 and the temperature of the injection molded shell is small, and the deformation caused by the cold of the shell is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides an engine base body hardware shell injection mold which characterized in that includes:
the die comprises a lower die base, wherein an installation groove is formed in the die base;
the lead-in piece is arranged in the mounting groove and is provided with a slot matched with the electrode joint; and the number of the first and second groups,
the insert pin is arranged on the lower die base and is matched with the connecting hole of the hardware;
the introduction member includes: the fixture comprises a fixing part and a connecting part arranged at one end of the fixing part, wherein a fixture block protruding towards one side is arranged at the bottom of the fixing part, and a clamping groove matched with the fixture block is arranged on the side wall of the mounting groove; the slot is arranged on the connecting part.
2. The engine base hardware housing injection mold of claim 1, wherein edges of the slot sidewalls are arcuately shaped.
3. The injection mold for the engine base hardware shell according to claim 2, wherein a limiting step is formed between the fixing portion and the connecting portion, and an abutting piece which is abutted against the limiting step is arranged on the lower die holder.
4. The engine base hardware housing injection mold of claim 3, wherein the ends of the insert pins are chamfered.
5. A process for machining an engine base hardware casing, characterized in that it is based on an injection mold according to any one of claims 1 to 4, comprising:
heating the hardware to be processed to a preset temperature;
mounting the heated hardware on the lower die holder, and inserting the insert pin into the slot through a connecting hole and an electrode joint of the hardware;
and (5) clamping the mold and performing injection molding to form the shell.
6. The process of machining an engine base hardware shell according to claim 5, wherein the predetermined temperature is 70-90 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811530082.5A CN109676859B (en) | 2018-12-14 | 2018-12-14 | Engine base body hardware shell injection mold and machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811530082.5A CN109676859B (en) | 2018-12-14 | 2018-12-14 | Engine base body hardware shell injection mold and machining process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109676859A CN109676859A (en) | 2019-04-26 |
| CN109676859B true CN109676859B (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811530082.5A Active CN109676859B (en) | 2018-12-14 | 2018-12-14 | Engine base body hardware shell injection mold and machining process |
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| Country | Link |
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| CN (1) | CN109676859B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706360A (en) * | 2021-01-26 | 2021-04-27 | 惠州市凯中精密技术有限公司 | Positioning structure for embedding hardware in injection molding mold |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204149441U (en) * | 2014-08-25 | 2015-02-11 | 健大电业制品（昆山）有限公司 | Automobile engine igniter shell injection mold |
| CN204773269U (en) * | 2015-07-09 | 2015-11-18 | 深圳市鑫裕达塑胶模具有限公司 | A tool that is used for hardware of moulding plastics in mould |
| CN205610387U (en) * | 2015-05-22 | 2016-09-28 | 纽摩泰科有限公司 | Fixed engine that reaches ground structure of casing with improve |
| CN205951143U (en) * | 2016-08-30 | 2017-02-15 | 健大电业制品（昆山）有限公司 | A movable insert that is used for putting in mould hardware |
| CN107297861A (en) * | 2017-07-26 | 2017-10-27 | 骏伟塑胶制品（太仓）有限公司 | A kind of secondary injection molding technique of circuit hardware class plastic cement products |
| CN108198712A (en) * | 2017-12-18 | 2018-06-22 | 宁波英格塑料制品有限公司 | A kind of manufacturing method of engine ignition switch |
| CN207711145U (en) * | 2018-01-01 | 2018-08-10 | 苏州市百诺塑胶有限责任公司 | A kind of sectional die mold insert |
| CN207954473U (en) * | 2018-02-09 | 2018-10-12 | 深圳鑫剑诚科技有限公司 | A kind of automobile engine plastics thermostat mold handware injection molding detent mechanism |
-
2018
- 2018-12-14 CN CN201811530082.5A patent/CN109676859B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204149441U (en) * | 2014-08-25 | 2015-02-11 | 健大电业制品（昆山）有限公司 | Automobile engine igniter shell injection mold |
| CN205610387U (en) * | 2015-05-22 | 2016-09-28 | 纽摩泰科有限公司 | Fixed engine that reaches ground structure of casing with improve |
| CN204773269U (en) * | 2015-07-09 | 2015-11-18 | 深圳市鑫裕达塑胶模具有限公司 | A tool that is used for hardware of moulding plastics in mould |
| CN205951143U (en) * | 2016-08-30 | 2017-02-15 | 健大电业制品（昆山）有限公司 | A movable insert that is used for putting in mould hardware |
| CN107297861A (en) * | 2017-07-26 | 2017-10-27 | 骏伟塑胶制品（太仓）有限公司 | A kind of secondary injection molding technique of circuit hardware class plastic cement products |
| CN108198712A (en) * | 2017-12-18 | 2018-06-22 | 宁波英格塑料制品有限公司 | A kind of manufacturing method of engine ignition switch |
| CN207711145U (en) * | 2018-01-01 | 2018-08-10 | 苏州市百诺塑胶有限责任公司 | A kind of sectional die mold insert |
| CN207954473U (en) * | 2018-02-09 | 2018-10-12 | 深圳鑫剑诚科技有限公司 | A kind of automobile engine plastics thermostat mold handware injection molding detent mechanism |
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| Publication number | Publication date |
|---|---|
| CN109676859A (en) | 2019-04-26 |
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