CN109551735A - A kind of injection mold - Google Patents
A kind of injection mold Download PDFInfo
- Publication number
- CN109551735A CN109551735A CN201811564877.8A CN201811564877A CN109551735A CN 109551735 A CN109551735 A CN 109551735A CN 201811564877 A CN201811564877 A CN 201811564877A CN 109551735 A CN109551735 A CN 109551735A
- Authority
- CN
- China
- Prior art keywords
- inner casing
- cooling
- injection
- mold
- injection hole
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- 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 molds, including inner casing, shell, cooling tube, model cavity, injection hole；The inner casing is set to the interior of shell, and the injection hole is communicated in above the inner casing, and the model cavity is formed in the inner casing below the injection hole；The cooling tube is around in the gap between the inner casing and shell.The present invention is had the advantage that in injection mold of the present invention compared with prior art from a set of cooling tube is equipped with, and can sufficiently and quickly reduce the temperature of plastic products in mold, cooling within the shortest time；Injection mold structure described in the invention is simple, easy to make at low cost；The injection hole length of the injection mold and the inner wall equal length of mold, it is ensured that melt substance can be full of entire mold with most fast speed, reach optimal shaping efficiency.
Description
Technical field
The present invention relates to plastic-injection field more particularly to a kind of injection molds.
Background technique
Injection molding process, which refers to, makes certain shapes by the operations such as pressurization, injection, cooling, disengaging for the raw material of melting
Semi-finished articles technical process.
In injection forming mold, the design of cooling system is extremely important.This is because moulded plastic products only cool down
It is cured to certain rigidity, is just avoided that plastic products are deformed due to by external force after demoulding.Due to accounting for cooling time entirely
Molding cycle about 70%~80%, therefore the good cooling system of design substantially shortening forming time, raising can be molded productivity,
Reduce cost.Improperly cooling system can be such that molding time elongates for design, increase cost;Inhomogeneous cooling is even to be further resulted in
The buckling deformation of plastic products.
It according to experiment, is substantially divided into two parts and is distributed by the heat that melt enters mold, a part has 5% via radiation, to spreading
It is delivered in atmosphere, remaining 95% is transmitted to mold from melt.Plastic products in a mold due to the effect of cooling water pipe, heat by
Plastics in die cavity reach cooling water pipe through mould bases by heat transfer, then are walked by the cooled liquid band of thermal convection.It is a small number of not cold
But the heat that water is taken away then continues to conduct in a mold, overflows in air until dissipating after contact is extraneous.
The molding cycle of injection molding is by burn close time, loading time, dwell time, cooling time and demoulding time group
At.Wherein accounted for the largest percentage with cooling time, about 70%~80%.Therefore cooling time will directly affect plastic products at
Type period length and yield size.Ejection phase plastic products temperature should be cooled to the heat distortion temperature lower than plastic products, with
Prevent plastic products warpage and deformation because of caused by relaxation caused by residual stress or demoulding external force.
In existing Shooting Technique, a set of cooling system can be separately set outside injection mold, but structure is complicated in this way, production
Difficulty is big；The injection hole of existing injection mold is too small, causes the melt substance being molded in progressive die tool cannot be within the shortest time
Full of entire mold, cause final shaping efficiency low.
Summary of the invention
Technical problem to be solved by the present invention lies in: in existing Shooting Technique, can separately it be set outside injection mold a set of
Cooling system, but structure is complicated in this way, manufacture difficulty is big.For this purpose, providing a kind of injection mold.
The present invention is to solve above-mentioned technical problem by the following technical programs:
A kind of injection mold, including inner casing, shell, cooling tube, model cavity, injection hole；The inner casing is set to the interior of shell,
The injection hole is communicated in above the inner casing, and the model cavity is formed in the inner casing below the injection hole；Institute
Cooling tube is stated around in the gap between the inner casing and shell.
Further, the outer wall of the cooling pipe outer wall and the inner casing is tangent.It can guarantee the plastics in inner casing in this way
Finished product can adequately touch cooling tube, effectively be cooled in a short time.
Further, the cooling tube is multiple, and is placed equidistant with along the length direction of inner casing.Multiple cooling tubes simultaneously into
The circulation of row coolant liquid can make the plastic cement products in model cavity uniform by cooling surface, be finally reached optimal cooling effect.
Further, each cooling tube both ends are respectively communicated with equipped with cooling liquid inlet, cooling liquid outlet；The coolant liquid into
Mouth, cooling liquid outlet height are concordant with the height of the injection hole.It is on the one hand to tailored appearance, is on the other hand to prolong
The length of the cycle of long coolant liquid improves the effect of its cooling.
Further, the inner wall equal length of the length of the injection hole and the inner casing.Can guarantee to be molded in this way into
Enter the melt substance in model cavity within the shortest time full of model cavity, improves shaping efficiency.
The present invention is had the advantage that in injection mold of the present invention compared with prior art from equipped with a set of cooling
Pipe, can sufficiently and quickly reduce the temperature of plastic products in mold, cooling within the shortest time；Note described in the invention
Mold lamps structure is simple, easy to make at low cost；The injection hole length of the injection mold and the inner wall equal length of mold, can be with
Guarantee that melt substance can be full of entire mold with most fast speed, reaches optimal shaping efficiency.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of the present invention；
Attached drawing 2 is the structural schematic diagram of 1 overlooking state of attached drawing.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
As shown in Figure 1, a kind of injection mold, including inner casing 100, shell 200, cooling tube 300, model cavity 102, injection hole
101；The inner casing 100 is set to inside the shell 200, and the injection hole 101 is communicated in 100 top of inner casing, described
Model cavity 102 is formed in the inner casing 100 of 101 lower section of injection hole；The cooling tube 300 is around set on the inner casing
In gap between 100 and shell 200.
The outer wall of 300 outer wall of cooling tube and the inner casing 100 is tangent.It can guarantee the plastics in inner casing 100 in this way
Finished product can adequately touch cooling tube 300, effectively be cooled in a short time.As shown in Figure 1, due to cooling tube 300
The outer wall of outer wall and the inner casing 100 is tangent, the circular inside diameters d2 that the outside diameter d 1 and cooling tube 300 that can obtain model cavity 102 are formed
It is equal, guarantee coming into full contact with for coolant liquid and model cavity 102, so that reach optimal cooling effect.
The cooling tube 300 is multiple, and is placed equidistant with along the length direction of inner casing 100.As shown in Fig. 2, multiple coolings
Pipe 300 carries out the circulation of coolant liquid simultaneously, and the plastic cement products in model cavity 102 can be made uniform by cooling surface, be finally reached most
Good cooling effect.
Each 300 both ends of cooling tube are respectively communicated with equipped with cooling liquid inlet 301, cooling liquid outlet 302；The coolant liquid into
Mouth 301,302 height of cooling liquid outlet are concordant with the height of the injection hole 101.It is on the one hand to tailored appearance, another party
Face is the length of the cycle in order to extend coolant liquid, improves the effect of its cooling.
The length of the injection hole 101 and the inner wall equal length of the inner casing 100.As shown in Fig. 2, injection hole 101
Length is L and the inner wall equal length of the inner casing 100.It can guarantee the melt substance that injection molding enters in model cavity 102 in this way
It is full of model cavity 102 within the shortest time, improves shaping efficiency.
The present invention is had the advantage that in injection mold of the present invention compared with prior art from equipped with a set of cooling
Pipe, can sufficiently and quickly reduce the temperature of plastic products in mold, cooling within the shortest time；Note described in the invention
Mold lamps structure is simple, easy to make at low cost；The injection hole length of the injection mold and the inner wall equal length of mold, can be with
Guarantee that melt substance can be full of entire mold with most fast speed, reaches optimal shaping efficiency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of injection mold, it is characterised in that: including inner casing, shell, cooling tube, model cavity, injection hole；The inner casing is set to
The interior of shell, the injection hole are communicated in above the inner casing, and the model cavity is formed in below the injection hole
In the inner casing；The cooling tube is around in the gap between the inner casing and shell.
2. a kind of injection mold according to claim 1, it is characterised in that: the cooling pipe outer wall and the inner casing it is outer
Wall is tangent.
3. a kind of injection mold according to claim 2, it is characterised in that: the cooling tube is multiple, and along inner casing
Length direction is placed equidistant with.
4. a kind of injection mold according to claim 3, it is characterised in that: each cooling tube both ends are respectively communicated with equipped with cold
But liquid import, cooling liquid outlet；The cooling liquid inlet, cooling liquid outlet height are concordant with the height of the injection hole.
5. a kind of injection mold according to claim 1, it is characterised in that: the length of the injection hole and the inner casing
Inner wall equal length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564877.8A CN109551735A (en) | 2018-12-20 | 2018-12-20 | A kind of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564877.8A CN109551735A (en) | 2018-12-20 | 2018-12-20 | A kind of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109551735A true CN109551735A (en) | 2019-04-02 |
Family
ID=65870566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811564877.8A Pending CN109551735A (en) | 2018-12-20 | 2018-12-20 | A kind of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109551735A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201728770U (en) * | 2010-06-18 | 2011-02-02 | 裕克施乐塑料制品（太仓）有限公司 | Plastic die cooling device |
| CN205130272U (en) * | 2015-10-22 | 2016-04-06 | 深圳市兆威机电有限公司 | Injection mold structure and injection mold |
| CN105881821A (en) * | 2016-03-31 | 2016-08-24 | 维沃移动通信有限公司 | Injection mold and manufacturing method of injection mold |
| CN206623357U (en) * | 2017-04-07 | 2017-11-10 | 富裕注塑制模（珠海）有限公司 | A kind of quick cooling mould of plastic fittings production |
| CN206953499U (en) * | 2017-02-28 | 2018-02-02 | 惠州伟志电子有限公司 | A kind of injection mould cooling system and a kind of injection mold |
-
2018
- 2018-12-20 CN CN201811564877.8A patent/CN109551735A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201728770U (en) * | 2010-06-18 | 2011-02-02 | 裕克施乐塑料制品（太仓）有限公司 | Plastic die cooling device |
| CN205130272U (en) * | 2015-10-22 | 2016-04-06 | 深圳市兆威机电有限公司 | Injection mold structure and injection mold |
| CN105881821A (en) * | 2016-03-31 | 2016-08-24 | 维沃移动通信有限公司 | Injection mold and manufacturing method of injection mold |
| CN206953499U (en) * | 2017-02-28 | 2018-02-02 | 惠州伟志电子有限公司 | A kind of injection mould cooling system and a kind of injection mold |
| CN206623357U (en) * | 2017-04-07 | 2017-11-10 | 富裕注塑制模（珠海）有限公司 | A kind of quick cooling mould of plastic fittings production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190402 |
|
| WD01 | Invention patent application deemed withdrawn after publication |