CN112108835A - Processing method of injection mold deep cavity core built-in spiral copper pipe - Google Patents
Processing method of injection mold deep cavity core built-in spiral copper pipe Download PDFInfo
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- CN112108835A CN112108835A CN202010804499.7A CN202010804499A CN112108835A CN 112108835 A CN112108835 A CN 112108835A CN 202010804499 A CN202010804499 A CN 202010804499A CN 112108835 A CN112108835 A CN 112108835A
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- China
- Prior art keywords
- copper pipe
- core
- spiral copper
- groove
- spiral
- 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.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 90
- 239000010949 copper Substances 0.000 title claims abstract description 90
- 238000002347 injection Methods 0.000 title claims abstract description 16
- 239000007924 injection Substances 0.000 title claims abstract description 16
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 22
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000003801 milling Methods 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 abstract description 15
- 239000004033 plastic Substances 0.000 abstract description 10
- 229920003023 plastic Polymers 0.000 abstract description 10
- 239000003507 refrigerant Substances 0.000 abstract description 8
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000002023 wood Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/007—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass injection moulding tools
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The processing method of the spiral copper pipe with the built-in deep cavity core of the injection mold comprises the following processing steps: firstly, processing a core prefabricated part; secondly, grooving the core prefabricated part; thirdly, winding the copper pipe; fourthly, fixing the spiral copper pipe; fifthly, casting low-melting-point alloy. Through opening the recess in the core, place spiral copper pipe in the recess again, and pour into a mould core and spiral copper pipe as an organic whole through the low melting point alloy, the pipe shaft of spiral copper pipe is unanimous with the interval between the core inner wall, after letting in the cooling water, the refrigerant in the cooling water transmits fast and even to each position of core, each position cooling that makes the core is even, and the core is with the even transmission of refrigerant to injection moulding's working of plastics, each position that makes the working of plastics can be even, quick cooling, the cooling efficiency is improved, the working of plastics can be stereotyped in advance and ejecting drawing of patterns like this, thereby the production efficiency of mould has been improved.
Description
Technical Field
The invention relates to an injection mold, in particular to a method for processing a spiral copper pipe with a built-in deep cavity core of the injection mold.
Background
In an injection mold, after injection molding, a plastic part is usually ejected and demolded after being cooled and shaped in a mold closing state. Cooling water paths are required to be arranged in the mold core and the mold cavity for cooling and shaping, cooling water is circulated in the cooling water paths to cool the mold core and the mold cavity, and the mold core and the mold cavity transmit the refrigerant to the plastic part to cool the plastic part. The existing cooling water path structure in the mold core is usually provided with an axial cooling water hole in the mold core, a flaky water diversion sheet or a spiral water diversion sheet is arranged in the cooling water hole, the cooling water hole is separated through the water diversion sheet, the circulating flow is realized, and the structure has the defects that: the cooling water is unevenly distributed, so that the cooling effect is poor and the cooling efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a method for processing the spiral copper pipe with the built-in deep cavity core of the injection mold, which has the advantages of uniform cooling water channel distribution, high cooling efficiency, good cooling effect and capability of improving the production efficiency of the mold.
The invention relates to a processing method of an injection mold deep cavity core built-in spiral copper pipe, which adopts the technical scheme that: the method comprises the following processing steps:
firstly, processing a core prefabricated part: adopting a numerical control milling machine to process steel to obtain a core prefabricated part, wherein a supporting seat is arranged at the bottom of the core prefabricated part;
secondly, grooving of the core prefabricated part: milling a groove at the bottom of the core prefabricated part by adopting a numerical control milling machine, milling a left open slot and a right open slot at the lower end of the supporting seat, and communicating the left open slot and the right open slot with the groove to obtain a core;
thirdly, winding the copper pipe: adopting a special tool, manufacturing a spiral groove on the surface of the tool, taking a copper pipe, and manually winding the copper pipe along the spiral groove on the surface of the tool to obtain a spiral copper pipe, wherein one end of the spiral copper pipe is a horizontal water inlet pipe, and the other end of the spiral copper pipe is a horizontal water outlet pipe;
fourthly, fixing the spiral copper pipe: taking 2-4 fixing strips, wherein one side of each fixing strip is an inclined plane, the other side of each fixing strip is provided with a clamping groove, the outer wall of a spiral copper pipe is clamped on the clamping groove of each fixing strip, the fixing strips and the spiral copper pipe are placed into the grooves of the mold core together, a water inlet pipe of the spiral copper pipe is placed into a left open groove of the supporting seat, and a water outlet pipe is placed into a right open groove;
fifthly, casting low-melting-point alloy: heating the low-melting-point alloy to a hot melting state of 600-800 ℃, injecting the hot-melted low-melting-point alloy into the groove, the left open slot, the right open slot, the spiral copper pipe and the outer wall of the fixing strip, and cooling and shaping.
The invention discloses a processing method of a spiral copper pipe with a built-in injection mold deep cavity core, which comprises the steps of firstly processing a steel material by a numerical control milling machine to obtain a core prefabricated part, wherein the bottom of the core prefabricated part is provided with a convex supporting seat, then slotting the bottom of the core prefabricated part and the bottom of the supporting seat by the numerical control milling machine to mill a deep cavity groove in the core prefabricated part, milling a left open slot and a right open slot at the bottom of the supporting seat, then winding the spiral copper pipe, adopting a tool, processing wood by the tool through a lathe to enable the shape of the wood to correspond to the groove of the core, then processing a spiral groove on the surface of the tool, then manually holding one end of the copper pipe by one hand and winding the copper pipe along the spiral groove on the surface of the tool by the other hand to obtain the spiral copper pipe, wherein one end of the spiral copper pipe is a horizontal water inlet pipe, taking out the spiral copper pipe from the tool when the spiral is bent to the bottom position, vertically bending the other end of the spiral copper pipe to the top of the spiral copper pipe by hand, bending the spiral copper pipe to the horizontal state to obtain a horizontal water outlet pipe, placing 2-4 fixing strips on the outer wall of a pipe body of the spiral copper pipe, wherein one side of each fixing strip is an inclined plane, the other side of each fixing strip is provided with a clamping groove, the clamping groove is matched with the outer wall of the pipe body of the spiral copper pipe, then placing the spiral copper pipe and the fixing strips into a groove of a mold core together, the inclined plane on one side of the fixing strip is attached to the inner wall of the groove, the bottom of each fixing strip is supported on the bottom surface of the groove, the fixing strips play a role in supporting, fixing and positioning the spiral copper pipe, a water inlet pipe at one end of the spiral copper pipe is placed into a left open slot of a supporting seat, the water outlet pipe, and injecting the hot-melted low-melting-point alloy into the groove, the left open slot, the right open slot, the spiral copper pipe and the outer wall of the fixing strip, and fixing the spiral copper pipe, the fixing strip and the mold core together into a whole after the low-melting-point alloy is cooled. According to the processing method of the spiral copper pipe with the built-in deep cavity core of the injection mold, the groove is formed in the core, the spiral copper pipe is placed in the groove, the core and the spiral copper pipe are cast into a whole through the low-melting-point alloy, the distance between the pipe body of the spiral copper pipe and the inner wall of the core is consistent, after cooling water is introduced, the speed of transferring a refrigerant in the cooling water to each position of the core is high and uniform, each part of the core is cooled uniformly, the core transfers the refrigerant uniformly to an injection-molded plastic piece, each part of the plastic piece can be cooled uniformly and rapidly, the cooling efficiency is improved, the plastic piece can be shaped in advance and can be ejected out of a mold, and therefore the production efficiency of the mold is improved.
According to the processing method of the spiral copper pipe with the built-in injection mold deep cavity core, the low-melting-point alloy is cast aluminum 102, cast aluminum 104, cast aluminum 201 or cast aluminum 301.
Drawings
FIG. 1 is a schematic structural view of a core preform;
FIG. 2 is a schematic view of the construction of the mandrel;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic structural view of a spiral copper tube;
FIG. 5 is a schematic structural view showing the fitting state of the spiral copper pipe, the fixing strip and the core;
FIG. 6 is a schematic view of the structure of the core injected with the low melting point alloy.
Detailed Description
The invention relates to a processing method of an injection mold deep cavity core built-in spiral copper pipe, which comprises the following processing steps as shown in figures 1-6:
firstly, processing a core prefabricated part: a numerical control milling machine is adopted to process steel to obtain a core prefabricated part 1, and a supporting seat 2 is arranged at the bottom of the core prefabricated part;
secondly, grooving of the core prefabricated part: milling a groove 3 at the bottom of the core prefabricated part 1 by adopting a numerical control milling machine, milling a left open slot 4 and a right open slot 5 at the lower end of the supporting seat 2, and communicating the left open slot and the right open slot with the groove to obtain a core 6;
thirdly, winding the copper pipe: adopting a special tool, manufacturing a spiral groove on the surface of the tool, taking a copper pipe, and manually winding the copper pipe along the spiral groove on the surface of the tool to obtain a spiral copper pipe 7, wherein one end of the spiral copper pipe is a horizontal water inlet pipe 8, and the other end of the spiral copper pipe is a horizontal water outlet pipe 9;
fourthly, fixing the spiral copper pipe 7: taking 2-4 fixing strips 10, wherein one side of each fixing strip is an inclined plane, the other side of each fixing strip is provided with a clamping groove 11, the outer wall of a spiral copper pipe 7 is clamped on the clamping groove of each fixing strip, then the fixing strips and the spiral copper pipe are placed into a groove 3 of a mold core 6 together, a water inlet pipe 8 of the spiral copper pipe 7 is placed into a left open groove 4 of a supporting seat 2, and a water outlet pipe 9 is placed into a right open groove 5;
fifthly, casting the low-melting-point alloy 12: heating the low-melting-point alloy to a hot melting state of 600-800 ℃, injecting the hot-melted low-melting-point alloy into the outer walls of the groove 3, the left open slot 4, the right open slot 5, the spiral copper pipe 7 and the fixing strip 10, and cooling and shaping.
The invention discloses a processing method of a spiral copper pipe with a built-in injection mold deep cavity core, which comprises the steps of firstly processing a steel material by a numerical control milling machine to obtain a core prefabricated part 1, wherein the bottom of the core prefabricated part is provided with a convex supporting seat 2, then slotting the bottom of the core prefabricated part 1 and the bottom of the supporting seat 2 by the numerical control milling machine to mill a deep cavity groove 3 in the core prefabricated part, milling a left open slot 4 and a right open slot 5 at the bottom of the supporting seat 2, then winding a spiral copper pipe 7, adopting a tool, processing wood by the tool through a lathe to enable the shape of the wood to correspond to the groove 3 of a core 6, then processing a spiral groove on the surface of the tool, then manually holding one end of the copper pipe by one hand, winding the copper pipe along the spiral groove on the surface of the tool by the other hand to obtain the spiral copper pipe 7, and one, the pipe body of the spiral copper pipe 7 is gradually downwards spirally in a truncated cone shape, when the spiral is bent to the bottom position, the spiral copper pipe is taken out from a tool, the other end of the spiral copper pipe is vertically bent upwards to the top of the spiral copper pipe by hand, and then is bent to the horizontal state to obtain a horizontal water outlet pipe 9, then 2-4 fixing strips 10 are placed on the outer wall of the pipe body of the spiral copper pipe 7, one side of each fixing strip is an inclined plane, the other side of each fixing strip is provided with a clamping groove 11, the clamping grooves are matched with the outer wall of the pipe body of the spiral copper pipe 7, the spiral copper pipe and the fixing strips are placed into a groove 3 of a mold core 6 together, wherein the inclined plane on one side of each fixing strip is attached to the inner wall of the groove, the bottom of each fixing strip is supported on the bottom surface of the groove, the fixing strips play a role in supporting, fixing and positioning on the spiral copper pipe 7, the water outlet pipe is placed in the right open slot 5, the low-melting-point alloy 12 is finally heated to a hot melting state of 600-800 ℃, the hot-melted low-melting-point alloy is injected into the outer walls of the groove 3, the left open slot 4, the right open slot 5, the spiral copper pipe 7 and the fixing strip 10, and after the low-melting-point alloy is cooled, the spiral copper pipe 7, the fixing strip 10 and the mold core 6 are fixed together to form a whole. The processing method of the spiral copper pipe with the built-in deep cavity core of the injection mold comprises the steps of forming the groove 3 in the core 6, then placing the spiral copper pipe 7 in the groove, pouring the core and the spiral copper pipe into a whole through the low-melting-point alloy 12, enabling the distance between the pipe body of the spiral copper pipe and the inner wall of the core to be consistent, after cooling water is introduced, enabling the speed of refrigerant in the cooling water to be fast and even when the refrigerant is transmitted to each position of the core, enabling each part of the core 6 to be cooled evenly, enabling the core to transmit the refrigerant to an injection-molded plastic part evenly, enabling each part of the plastic part to be cooled evenly and fast, improving the cooling efficiency, enabling the plastic part to be shaped in advance and ejected out of a mold, and further improving the. The low-melting-point alloy 12 is cast aluminum 102, or cast aluminum 104, or cast aluminum 201, or cast aluminum 301.
Claims (2)
1. The processing method of the injection mold deep cavity core built-in spiral copper pipe is characterized in that: the method comprises the following processing steps:
firstly, processing a core prefabricated part: a numerical control milling machine is adopted to process steel to obtain a core prefabricated part (1), and a supporting seat (2) is arranged at the bottom of the core prefabricated part;
secondly, grooving of the core prefabricated part: milling a groove (3) at the bottom of the core prefabricated part (1) by adopting a numerical control milling machine, milling a left open slot (4) and a right open slot (5) at the lower end of the supporting seat (2), wherein the left open slot and the right open slot are communicated with the groove to obtain a core (6);
thirdly, winding the copper pipe: adopting a special tool, manufacturing a spiral groove on the surface of the tool, taking a copper pipe, and manually winding the copper pipe along the spiral groove on the surface of the tool to obtain a spiral copper pipe (7), wherein one end of the spiral copper pipe is a horizontal water inlet pipe (8), and the other end of the spiral copper pipe is a horizontal water outlet pipe (9);
fourthly, fixing the spiral copper pipe (7): taking 2-4 fixing strips (10), wherein one side of each fixing strip is an inclined plane, the other side of each fixing strip is provided with a clamping groove (11), the outer wall of a spiral copper pipe (7) is clamped on the clamping groove of each fixing strip, the fixing strips and the spiral copper pipe are placed into a groove (3) of a mold core (6), a water inlet pipe (8) of the spiral copper pipe (7) is placed into a left open groove (4) of a supporting seat (2), and a water outlet pipe (9) is placed into a right open groove (5);
fifthly, casting the low-melting-point alloy (12): heating the low-melting-point alloy to a hot melting state of 600-800 ℃, injecting the hot-melted low-melting-point alloy into the outer walls of the groove (3), the left open slot (4), the right open slot (5), the spiral copper pipe (7) and the fixing strip (10), and cooling and shaping.
2. The processing method of the injection mold deep cavity core built-in spiral copper pipe according to claim 1, characterized in that: the low-melting-point alloy (12) is cast aluminum 102 or cast aluminum 104 or cast aluminum 201 or cast aluminum 301.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010804499.7A CN112108835A (en) | 2020-08-12 | 2020-08-12 | Processing method of injection mold deep cavity core built-in spiral copper pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010804499.7A CN112108835A (en) | 2020-08-12 | 2020-08-12 | Processing method of injection mold deep cavity core built-in spiral copper pipe |
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|---|---|
| CN112108835A true CN112108835A (en) | 2020-12-22 |
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|---|---|---|---|
| CN202010804499.7A Pending CN112108835A (en) | 2020-08-12 | 2020-08-12 | Processing method of injection mold deep cavity core built-in spiral copper pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714482A (en) * | 2021-08-25 | 2021-11-30 | 南通大学 | Aluminum alloy pressure casting mold core with curved surface appearance and cooling method |
| CN114322575A (en) * | 2021-12-22 | 2022-04-12 | 芜湖福记恒机械有限公司 | Complex copper water jacket based on 3D printing technology and casting molding process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1956068U (en) * | 1966-10-22 | 1967-02-23 | Stefan Ludwig Iszer Von Issen | INJECTION MOLD FOR THE PLASTIC INJECTION MOLDING TECHNOLOGY D. DGL. |
| CN101670437A (en) * | 2009-07-20 | 2010-03-17 | 黑龙江科技学院 | Mould making method with conformal cooling pipe |
| CN103372763A (en) * | 2012-04-28 | 2013-10-30 | 兰州理工大学 | Zinc alloy mold rapid manufacture process based on rapid prototyping and zinc alloy mold material |
| CN205219659U (en) * | 2015-11-27 | 2016-05-11 | 深圳市鑫灏源精密技术股份有限公司 | Injection mold's cooling pipeline structure |
| CN108068286A (en) * | 2017-12-07 | 2018-05-25 | 浙江凯华模具有限公司 | Fretting map depth chamber molding mold cavity core cooling body |
-
2020
- 2020-08-12 CN CN202010804499.7A patent/CN112108835A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1956068U (en) * | 1966-10-22 | 1967-02-23 | Stefan Ludwig Iszer Von Issen | INJECTION MOLD FOR THE PLASTIC INJECTION MOLDING TECHNOLOGY D. DGL. |
| CN101670437A (en) * | 2009-07-20 | 2010-03-17 | 黑龙江科技学院 | Mould making method with conformal cooling pipe |
| CN103372763A (en) * | 2012-04-28 | 2013-10-30 | 兰州理工大学 | Zinc alloy mold rapid manufacture process based on rapid prototyping and zinc alloy mold material |
| CN205219659U (en) * | 2015-11-27 | 2016-05-11 | 深圳市鑫灏源精密技术股份有限公司 | Injection mold's cooling pipeline structure |
| CN108068286A (en) * | 2017-12-07 | 2018-05-25 | 浙江凯华模具有限公司 | Fretting map depth chamber molding mold cavity core cooling body |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714482A (en) * | 2021-08-25 | 2021-11-30 | 南通大学 | Aluminum alloy pressure casting mold core with curved surface appearance and cooling method |
| CN114322575A (en) * | 2021-12-22 | 2022-04-12 | 芜湖福记恒机械有限公司 | Complex copper water jacket based on 3D printing technology and casting molding process thereof |
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Application publication date: 20201222 |
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