CN109466025A - A kind of injection mold - Google Patents
A kind of injection mold Download PDFInfo
- Publication number
- CN109466025A CN109466025A CN201710806340.7A CN201710806340A CN109466025A CN 109466025 A CN109466025 A CN 109466025A CN 201710806340 A CN201710806340 A CN 201710806340A CN 109466025 A CN109466025 A CN 109466025A
- Authority
- CN
- China
- Prior art keywords
- pin
- cavity
- injection mold
- die cavity
- holes
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- 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
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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 discloses a kind of injection mold, including front template, rear pattern plate and pin, front cavity is provided in front template, the bottom surface of the front cavity is provided with location hole；Rear cavity is provided in rear pattern plate, the rear cavity is provided with the die cavity holes through the rear cavity；The end of the pin passes through the die cavity holes and the location hole cooperates, and the forming cavity of product is formed between the die cavity holes and the pin.In the injection mold, the positioning hole of front cavity is protruded into the upper end of pin, and the position of fixed pin, when preventing injection molding, pin shifts under the action of injection pressure, to avoid injecting products eccentric, improves the quality of product.
Description
Technical field
The present invention relates to technical field of mold more particularly to a kind of injection molds.
Background technique
Injection mold is a kind of tool for producing plasthetics.Injection mold is made of preceding mould and rear mold two parts, preceding mould
It is inside provided with front cavity, rear cavity is provided in rear mold, rear cavity is provided with die cavity holes, and front cavity is set to the top of rear cavity
And abutted with the surface of rear cavity, pin is protruded into die cavity holes by the bottom of rear cavity, and end is abutted with front cavity, pin with
The forming cavity of product is formed between die cavity holes.
Since the upper end of pin is directly connected in front cavity, locating effect is unstable, and in injection molding, pin is in injection molding material
Under the action of the injection pressure of material, it is easy to happen offset, it is eccentric so as to cause the product of injection molding, influence the quality of product.
Summary of the invention
It is an object of the invention to propose a kind of injection mold, can be deviated to avoid pin, to improve injecting products
Quality.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of injection mold, comprising:
Front template, is arranged inside front cavity, and the bottom surface of the front cavity is provided with location hole；
Rear pattern plate, is arranged inside rear cavity, and the rear cavity is provided with the die cavity holes through the rear cavity；
Pin, the end of the pin passes through the die cavity holes and the location hole cooperates, the die cavity holes and the edge
The forming cavity of product is formed between needle.
Wherein, the quantity of the pin be it is multiple, the quantity of the location hole and the die cavity holes with the pin
Quantity is corresponding.
Wherein, the front template is provided with note cast gate, and the note cast gate is connected to the forming cavity.
It wherein, further include fixed plate, the fixed plate is set to the bottom of the rear pattern plate, and the fixed plate is in the type
The corresponding position of lumen pore is provided with connecting hole, the end of the pin sequentially pass through after the connecting hole and the die cavity holes with institute
State location hole cooperation.
Wherein, the pin is divided into fixed section and profiled section from the bottom to top, and the fixed section and connecting hole cooperation are solid
Fixed, the end of the profiled section and the location hole cooperate, and the die cavity holes and the profiled section cooperatively form the forming cavity,
The diameter of the fixed section is greater than the diameter of the profiled section.
Wherein, the pin further includes the changeover portion between the profiled section and the fixed section, the changeover portion
Diameter be gradually reduced from bottom to top, the lower end of the die cavity holes and the changeover portion cooperate.
The utility model has the advantages that the positioning hole of front cavity is protruded into the upper end of pin the present invention provides a kind of injection mold, it is fixed
The position of pin, when preventing injection molding, pin shifts under the action of injection pressure, to avoid injecting products eccentric, mentions
The quality of high product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of injection mold provided in an embodiment of the present invention；
Fig. 2 is the cross-sectional view of injection mold provided in an embodiment of the present invention.
Wherein:
1, cephacoria benevolence；11, location hole；2, rear cavity；21；Die cavity holes；3, fixed plate；31, connecting hole；4, pin；5, it produces
Product.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
In conjunction with attached drawing and pass through specific embodiment to further illustrate the technical scheme of the present invention.
A kind of injection mold is present embodiments provided, as shown in Figure 1, including front template, the preceding mould being set in front template
Benevolence 1, rear pattern plate, the rear cavity 2 being set in rear pattern plate, fixed plate 3 and pin 4, preceding diaphragm plate, rear pattern plate and fixed plate 3 are successively
It stacks, front template and rear pattern plate are used to form the forming cavity of product 5, and fixed plate 3 is used for the positioning and fixation of pin 4；Front template
On be provided with note cast gate, note cast gate is connected to forming cavity, and when injection molding, injected plastics material is entered in forming cavity by note cast gate, is passed through
It is formed after cooling, product 5 is taken out by die sinking.
Specifically, the bottom surface of front cavity 1 is provided with location hole 11, for cooperating with the upper end of pin 4；Rear cavity 2 is set
It is equipped with the die cavity holes 21 through rear cavity 2；Fixed plate 3 is provided with connecting hole 31, the end of pin 4 in 21 corresponding position of die cavity holes
After sequentially passing through connecting hole 31 and die cavity holes 21, with location hole 11 cooperate, between die cavity holes 21 and pin 4 formed product 5 at
Type chamber.
In the present embodiment, the lower end of pin 4 and fixed plate 3 are fixed, after upper end sequentially passes through connecting hole 31 and die cavity holes 21
It protrudes into the location hole 11 of front cavity 1, so that the both ends of pin 4 are fixed under the action of location hole 11 and connecting hole 31,
When injection molding, pin 4 is avoided to deviate under the impact of injection pressure, so that position of the pin 4 in forming cavity is fixed,
And then prevent molding product 5 eccentric, it ensure that the concentricity of product 5, improve the stability of injection mold and the matter of product 5
Amount, conducive to the long-term production of injection mold.
In the present embodiment, the quantity of pin 4 can be it is multiple, the quantity of location hole 11 and die cavity holes 21 with pin 4
Quantity is corresponding, to form multiple forming cavities, realizes that one-time-concreting forms multiple products 5, improves the volume production efficiency of product 5.
As shown in Fig. 2, pin 4 is divided into fixed section and profiled section from the bottom to top, fixed section and the cooperation of connecting hole 31 are fixed, at
The end of type section and location hole 11 cooperate, and die cavity holes 21 and profiled section cooperatively form forming cavity, and the diameter of fixed section is greater than molding
The diameter of section, allows fixing end to block the lower end of forming cavity, avoids the injected plastics material in forming cavity from being flowed out by fixed section, mention
The airtightness of high forming cavity.
In the present embodiment, pin 4 further includes the changeover portion between profiled section and fixed section, and the diameter of changeover portion is under
To being above gradually reduced, the lower end of die cavity holes 21 and changeover portion cooperate.Profiled section and fixing end are connected by changeover portion, is conducive to inlay
The cooperation and positioning of needle 4 and molding hole.Certainly, pin 4 is also possible to stepped shaft structure, and miner diameter end is profiled section, and bigger diameter end is
Fixing end can also be improved the airtightness of forming cavity.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (6)
1. a kind of injection mold characterized by comprising
Front template is arranged inside front cavity (1), and the bottom surface of the front cavity (1) is provided with location hole (11)；
Rear pattern plate is arranged inside rear cavity (2), and the rear cavity (2) is provided with the die cavity holes through the rear cavity (2)
(21)；
Pin (4), the end of the pin (4) pass through the die cavity holes (21) and the location hole (11) and cooperate, the type chamber
The forming cavity of product (5) is formed between hole (21) and the pin (4).
2. injection mold as described in claim 1, which is characterized in that the quantity of the pin (4) is multiple, the location hole
(11) and the quantity of the die cavity holes (21) is corresponding with the quantity of the pin (4).
3. injection mold as described in claim 1, which is characterized in that the front template is provided with note cast gate, the note cast gate
It is connected to the forming cavity.
4. injection mold as claimed in any one of claims 1-3, which is characterized in that further include fixed plate (3), the fixation
Plate (3) is set to the bottom of the rear pattern plate, and the fixed plate (3) is provided with connection in the corresponding position of the die cavity holes (21)
Hole (31), the end of the pin (4) sequentially pass through the connecting hole (31) and the die cavity holes (21) afterwards with the location hole
(11) cooperate.
5. injection mold as claimed in claim 4, which is characterized in that the pin (4) be divided into from the bottom to top fixed section and at
Type section, the fixed section and the connecting hole (31) cooperation are fixed, and the end of the profiled section and the location hole (11) cooperate,
The die cavity holes (21) and the profiled section cooperatively form the forming cavity, and the diameter of the fixed section is greater than the profiled section
Diameter.
6. injection mold as claimed in claim 5, which is characterized in that the pin (4) further include be located at the profiled section and
The diameter of changeover portion between the fixed section, the changeover portion is gradually reduced from bottom to top, the lower end of the die cavity holes (21)
Cooperate with the changeover portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710806340.7A CN109466025A (en) | 2017-09-08 | 2017-09-08 | A kind of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710806340.7A CN109466025A (en) | 2017-09-08 | 2017-09-08 | A kind of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109466025A true CN109466025A (en) | 2019-03-15 |
Family
ID=65657816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710806340.7A Pending CN109466025A (en) | 2017-09-08 | 2017-09-08 | A kind of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109466025A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010167657A (en) * | 2009-01-22 | 2010-08-05 | Hitachi Maxell Ltd | Mold and tape cartridge |
| CN202462788U (en) * | 2012-01-17 | 2012-10-03 | 捷荣模具工业(东莞)有限公司 | Location structure for hardware piece, upper inner model and lower inner model on injection mold |
| CN205685635U (en) * | 2016-06-03 | 2016-11-16 | 深圳市海德模具有限公司 | A kind of pin location structure |
| WO2017018712A2 (en) * | 2015-07-30 | 2017-02-02 | ㈜건우정공 | Injection molding apparatus |
| CN207415857U (en) * | 2017-09-08 | 2018-05-29 | 上海未来伙伴机器人有限公司 | A kind of injection mold |
-
2017
- 2017-09-08 CN CN201710806340.7A patent/CN109466025A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010167657A (en) * | 2009-01-22 | 2010-08-05 | Hitachi Maxell Ltd | Mold and tape cartridge |
| CN202462788U (en) * | 2012-01-17 | 2012-10-03 | 捷荣模具工业(东莞)有限公司 | Location structure for hardware piece, upper inner model and lower inner model on injection mold |
| WO2017018712A2 (en) * | 2015-07-30 | 2017-02-02 | ㈜건우정공 | Injection molding apparatus |
| CN205685635U (en) * | 2016-06-03 | 2016-11-16 | 深圳市海德模具有限公司 | A kind of pin location structure |
| CN207415857U (en) * | 2017-09-08 | 2018-05-29 | 上海未来伙伴机器人有限公司 | A kind of injection mold |
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