CN110103397B - Double-shot injection mold with front rear mold tunnel row position - Google Patents
Double-shot injection mold with front rear mold tunnel row position Download PDFInfo
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- CN110103397B CN110103397B CN201910388793.1A CN201910388793A CN110103397B CN 110103397 B CN110103397 B CN 110103397B CN 201910388793 A CN201910388793 A CN 201910388793A CN 110103397 B CN110103397 B CN 110103397B
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- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000007924 injection Substances 0.000 title claims abstract description 19
- 238000001746 injection moulding Methods 0.000 claims abstract description 57
- 239000003086 colorant Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 238000005034 decoration Methods 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- B29C45/16—Making multilayered or multicoloured articles
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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
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention aims to provide a double-color injection mold with a front tunnel line position of a rear mold, which is provided with two front molds for injection molding different colors, wherein front mold cores are arranged in a front mold plate to realize the appearance surface and structure of a double-color ornament product; the front rear mould tunnel row position is fixedly connected with the front mould plate through a fixing seat, so that double-shot injection molding and back-off demoulding of the oblique cylindrical hole wall structure of the ornament are realized; the fixed seat is fixed on the front template; the rear mold core is arranged in the rear mold plate to realize the non-appearance surface and the structure of the bicolor decoration product; the shifting block is fixed on the supporting plate and shifts the front rear mould tunnel row position to perform core pulling or return movement; the mechanical button machine is fixed on the back template to control the opening and closing sequence among the front template, the back template and the supporting plate. When the mold is opened, the front-end rear mold tunnel row position arranged in the fixing seat is shifted through the shifting block, so that the injection molding of the automobile double-color ornament product with the double-color structural characteristics of the inclined cylindrical hole wall is reliably realized.
Description
Technical Field
The invention relates to the field of double-color injection molds, in particular to a double-color injection mold with a slant cylindrical hole and a front-positioned rear mold tunnel row position of an automobile double-color ornament product with a double-color structure at the hole wall.
Background
In recent years, the application of double-color injection molding products is increasingly wide, and two plastic materials have different appearance colors and different use functions, but have the characteristic of mutual fusion. For example, the hard glue mainly bears the functions of positioning, supporting or supporting, and the soft glue mainly plays the roles of sealing, shock resistance or hand feeling. In terms of structure, most double-shot injection products adopt three forms of peripheral edge double layers, upper and lower layers or inner and outer layers and edge cladding, and the double-shot injection products can be realized through two different front molds or two different front molds and a front mold elastic block of the double-shot injection mold. However, in the face of an automobile bicolor ornament product with an inclined cylindrical hole and a bicolor structure at the hole wall, the common bicolor injection mold cannot meet the injection molding requirement of the structural characteristics.
Disclosure of Invention
In order to solve the problems, the invention provides a double-shot injection mold with a front tunnel line position of a rear mold, which is provided with two front molds with different injection colors, wherein front mold cores are arranged in a front mold plate to realize the appearance surface and the structure of a double-shot ornament product, and the front tunnel line position of the rear mold is connected with the front mold plate through a fixing seat to realize double-shot injection molding and inverted demolding of an inclined cylindrical hole wall structure of the ornament; the fixed seat is fixed on the front template, and the front rear mold tunnel row position positioning and moving guiding are realized by utilizing the rear mold tunnel; the rear mold core is arranged in the rear mold plate to realize the non-appearance surface and the structure of the bicolor decoration product; the shifting block is fixed on the supporting plate, the front rear mould tunnel row position is shifted to perform core pulling or return movement, and the supporting plate supports the rear mould plate and fixes the shifting block; the mechanical fastener is fixed on the back template, each fastener has two overhanging bars connected with the front template and the supporting plate respectively, and controls the opening and closing sequence among the front template, the back template and the supporting plate. When the mold is opened, the front-end rear mold tunnel row position arranged in the fixing seat is shifted through the shifting block, so that the injection molding of the automobile double-color ornament product with the double-color structural characteristics of the inclined cylindrical hole wall is reliably realized, and the problem that the common double-color injection mold cannot meet the injection molding requirement of the product is solved.
The invention aims to provide a double-shot injection mold with a front tunnel row position of a rear mold, which comprises a front mold part and a rear mold part which are arranged front and back, wherein the front mold part is fixed on an injection molding machine and comprises two front molds for injection molding different colors; the front mould comprises a front mould plate and a front mould core arranged in the front mould plate, a fixed seat is fixed on the front mould plate, and a front-rear mould tunnel row position corresponding to the front mould core is arranged in the fixed seat; the rear mould part is driven by an injection molding machine to move forwards and backwards to open and close and can rotate to change moulds, and comprises two identical rear moulds for realizing continuous injection molding production; wherein the first color front mold and any one of the rear molds are clamped for first color injection molding, and the second color front mold and any one of the rear molds are clamped for second color injection molding; the rear mould comprises a rear mould plate and a rear mould core arranged in the rear mould plate, a supporting plate is arranged at the rear side of the rear mould plate, a shifting block is fixed on the supporting plate, and the front end of the shifting block is inserted into a front rear mould tunnel row position for carrying out core pulling or return movement on the rear mould tunnel row position; the front end of the line position of the rear mould tunnel is inserted into a front mould core and a rear mould core which are correspondingly injection-molded; mechanical buckles are fixedly distributed on the front side and the rear side of the rear template and used for controlling the opening and closing sequence among the front template, the rear template and the supporting plate.
The further improvement is that: the front mold core is used for realizing the appearance surface and the structure of the bicolor ornament product, the rear mold core is used for realizing the non-appearance surface and the structure of the bicolor ornament product, and the rear mold tunnel line position is used for realizing the bicolor injection molding and the back-off demolding of the bicolor ornament product inclined cylindrical hole wall structure.
The further improvement is that: the mechanical button machine is provided with two overhanging rod pieces which are respectively connected with the front template and the supporting plate.
The further improvement is that: firstly, performing first color injection molding, opening a mold after a first color ornament product is molded, locking a front template by a mechanical fastener, enabling a rear template not to be separated, namely enabling a front mold core parting surface and a rear mold core parting surface not to be separated, enabling a supporting plate to retreat, enabling a shifting block fixed on the supporting plate to drive a front rear mold tunnel line position to perform core pulling movement, enabling the shifting block to be separated from the front rear mold tunnel line position after core pulling is in place, and ending the locking function of the mechanical fastener; and continuing to retreat, namely separating the parting surfaces of the front mold plate and the rear mold plate, namely separating the parting surfaces of the front mold core and the rear mold core, wherein the first color injection molding product is left on the rear mold core of the rear mold plate, retreating is stopped when the rear mold plate retreats to a set position, the pulled back mold plate and the pulled back support plate are locked by a mechanical buckling machine, then the rear mold is rotated for 180 degrees, the mold changing operation of the second color injection molding is completed, the rear mold is matched with the second color front mold, and the second color injection molding is carried out on the first color injection molding product.
The invention has the beneficial effects that: the invention has two front molds with different colors, the front mold core is arranged in the front mold plate to realize the appearance surface and the structure of the bicolor ornament product, the front rear mold tunnel row position is connected with the front mold plate through the fixing seat to realize the bicolor injection molding and the back-off demolding of the inclined cylindrical hole wall structure of the ornament; the fixed seat is fixed on the front template, and the front rear mold tunnel row position positioning and moving guiding are realized by utilizing the rear mold tunnel; the rear mold core is arranged in the rear mold plate to realize the non-appearance surface and the structure of the bicolor decoration product; the shifting block is fixed on the supporting plate, the front rear mould tunnel row position is shifted to perform core pulling or return movement, and the supporting plate supports the rear mould plate and fixes the shifting block; the mechanical fastener is fixed on the back template, each fastener has two overhanging bars connected with the front template and the supporting plate respectively, and controls the opening and closing sequence among the front template, the back template and the supporting plate. When the mold is opened, the front-end rear mold tunnel line position arranged in the fixed seat is shifted through the shifting block, so that the injection molding of the automobile bicolor decoration product with the oblique cylindrical hole wall bicolor structural characteristics is reliably realized, the problem that the common bicolor injection mold cannot meet the injection molding requirement of the product is solved, the integrity of the automobile bicolor decoration product is maintained, and the input of the mold is reduced; the front structure of the rear mold tunnel row position is reasonable, the action is stable and reliable, and the service life of the double-color injection mold and the injection molding quality and the production efficiency of the double-color ornament product are effectively ensured.
Drawings
Fig. 1 is a front cross-sectional view of a front and rear formwork support plates of the present invention together.
Fig. 2 is a side view of the back form of the present invention.
Fig. 3 is an enlarged view of the present invention at the production of the trim piece of fig. 1.
Wherein: the mold comprises a front mold plate, a rear mold plate, a 3-supporting plate, a 4-front mold core, a 5-rear mold core, a 6-fixing seat, a 7-rear mold tunnel row position, an 8-shifting block, a 9-mechanical button machine and a 10-ornament product.
Detailed Description
The present invention will be further described in detail with reference to examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
As shown in fig. 1-3, the bicolor injection mold with the front tunnel row position of the rear mold in the embodiment comprises a front mold part and a rear mold part which are arranged front and back, wherein the front mold part is fixed on an injection molding machine and comprises two front molds for injecting different colors; the front mould comprises a front mould plate 1 and a front mould core 4 arranged in the front mould plate 1, a fixed seat 6 is fixed on the front mould plate 1, and a front-rear mould tunnel row position 7 corresponding to the front mould core 4 is arranged in the fixed seat 6; the rear mould part is driven by an injection molding machine to move forwards and backwards to open and close and can rotate to change moulds, and comprises two identical rear moulds for realizing continuous injection molding production; wherein the first color front mold and any one of the rear molds are clamped for first color injection molding, and the second color front mold and any one of the rear molds are clamped for second color injection molding; the rear mould comprises a rear mould plate 2 and a rear mould core 5 arranged in the rear mould plate 2, a supporting plate 3 is arranged at the rear side of the rear mould plate 2, a shifting block 8 is fixed on the supporting plate 3, and the front end of the shifting block 8 is inserted into a front rear mould tunnel row position 7 for carrying out core pulling or return movement on the rear mould tunnel row position 7; the front end of the rear mould tunnel row position 7 is inserted into the front mould core 4 and the rear mould core 5 which are correspondingly injection-molded; mechanical buckling machines 9 are fixedly distributed on the front side and the rear side of the rear template 2 and used for controlling the opening and closing sequence among the front template 1, the rear template 2 and the supporting plate 3. The front mold core 4 is used for realizing the appearance surface and the structure of a bicolor ornament product, the rear mold core 5 is used for realizing the non-appearance surface and the structure of the bicolor ornament product, and the rear mold tunnel row position 7 is used for realizing the bicolor injection molding and the inverted buckle demolding of the bicolor ornament product inclined cylindrical hole wall structure. The mechanical button machine 9 is provided with two overhanging bars which are respectively connected with the front template 1 and the supporting plate 3.
Firstly, performing first color injection molding, opening a mold after a first color ornament product is molded, locking a front mold plate 1 by a mechanical fastener 9, and keeping a rear mold plate 2 from separating, namely keeping a front mold core parting surface and a rear mold core parting surface from separating, backing a backing plate 3, driving a front rear mold tunnel row position 7 by a shifting block 8 fixed on the backing plate 3 to perform core pulling movement, and after core pulling is in place, separating the shifting block 8 from the front rear mold tunnel row position 7, wherein the locking function of the mechanical fastener is finished; and continuing to retreat, separating the front template 1 and the rear template 2, namely separating the parting surfaces of the front die core and the rear die core, leaving the first-color injection molding product on the rear die core 5 of the rear template 2, retreating to stop when the rear template 2 retreats to a set position, locking the pulled back template 2 and the supporting plate 3 by a mechanical fastener 9, rotating the back template for 180 degrees, and completing die changing operation of the second-color injection molding, wherein the back template is matched with the second-color front die. Because the pulled back template 2 and the supporting plate 3 are locked, the parting surfaces of the front and the back mold cores are firstly closed, and when the mechanical fastener 9 locks the front and the back templates again, the locking between the back template 2 and the supporting plate 3 is released; the supporting plate 3 continues to move forward, and a shifting block fixed on the supporting plate enters a tunnel row position of a front rear mold of the second injection molding and pushes the shifting block to move back; after the mold is returned to place, the mold closing of the rear mold core 5 of the rear mold plate 2 and the second color front mold core 4 is completed, and the second color injection molding is started.
When the second color injection molding is finished, the mold opening process is the same as the mold opening process after the first color injection molding, but before the whole rear mold rotates 180 degrees again, a rear mold ejector plate is ejected and moved under the pushing of an ejector rod of a double-color injection molding machine to drive an ejector pin and an oblique ejector to eject a double-color ornament product out of the rear mold; after demolding and taking the part are completed, the ejector rod of the double-color injection molding machine pulls the rear mold ejector plate to enable the ejector rod and the inclined ejector to return; after the two-shot injection molding is in place, the whole rear mold is rotated 180 degrees again under the control of the two-shot injection molding machine, and the first-shot injection molding is restarted.
The front mold core 4 is arranged in the front mold plate 1 to realize the appearance surface and the structure of a bicolor ornament product, and the front rear mold tunnel row 7 is connected with the front mold plate 1 through the fixing seat 6 to realize bicolor injection molding and inverted demolding of the ornament oblique cylindrical hole wall structure; the fixed seat 6 is fixed on the front template 1, and the front rear mold tunnel line position 7 is positioned and moved and guided by utilizing the rear mold tunnel; the rear mold core 5 is arranged in the rear mold plate 2 to realize the non-appearance surface and the structure of the bicolor decoration piece product; the shifting block 8 is fixed on the supporting plate 3, the front rear mould tunnel row 7 is shifted to perform core pulling or return movement, and the supporting plate 3 supports the rear mould plate 2 and fixes the shifting block 8; the mechanical button machine 9 is fixed on the rear template 2, each button machine is provided with two overhanging bars which are respectively connected with the front template and the supporting plate, and the opening and closing sequence among the front template, the rear template and the supporting plate is controlled. When the mold is opened, the front-end rear-mold tunnel row 7 arranged in the fixed seat 6 is shifted through the shifting block 8, so that the injection molding of the automobile bicolor decoration product with the oblique cylindrical hole wall bicolor structural characteristics is reliably realized, the problem that the common bicolor injection mold cannot meet the injection molding requirement of the product is solved, the integrity of the automobile bicolor decoration product is maintained, and the investment of the mold is reduced; the front structure of the rear mold tunnel row position is reasonable, the action is stable and reliable, and the service life of the double-color injection mold and the injection molding quality and the production efficiency of the double-color ornament product are effectively ensured.
Claims (1)
1. Double-colored injection mold of back mould tunnel line position front position, including front mould portion and the back mould portion that sets up, its characterized in that: the front mould part is fixed on the injection molding machine and comprises two front moulds for injection molding with different colors; the front mould comprises a front mould plate (1) and a front mould core (4) arranged in the front mould plate (1), a fixed seat (6) is fixed on the front mould plate (1), and a front-positioned rear mould tunnel row position (7) corresponding to the front mould core (4) is arranged in the fixed seat (6); the rear mould part is driven by an injection molding machine to move forwards and backwards to open and close and can rotate to change moulds, and comprises two identical rear moulds for realizing continuous injection molding production; wherein the first color front mold and any one of the rear molds are clamped for first color injection molding, and the second color front mold and any one of the rear molds are clamped for second color injection molding; the rear mould comprises a rear mould plate (2) and a rear mould core (5) arranged in the rear mould plate (2), a supporting plate (3) is arranged at the rear side of the rear mould plate (2), a shifting block (8) is fixed on the supporting plate (3), and the front end of the shifting block (8) is inserted into a front rear mould tunnel line position (7) for carrying out core pulling or return movement on the rear mould tunnel line position (7); the front end of the rear mould tunnel row position (7) is inserted into the front mould core (4) and the rear mould core (5) which are correspondingly injection-molded; mechanical buckling machines (9) are fixedly distributed on the front side and the rear side of the rear template (2) and used for controlling the opening and closing sequence among the front template (1), the rear template (2) and the supporting plate (3);
the front mold core (4) is used for realizing the appearance surface and the structure of a bicolor ornament product, the rear mold core (5) is used for realizing the non-appearance surface and the structure of the bicolor ornament product, and the rear mold tunnel row position (7) is used for realizing the bicolor injection molding and the inverted buckle demoulding of the oblique cylindrical hole wall structure of the bicolor ornament product;
the mechanical button machine (9) is provided with two overhanging rod pieces which are respectively connected with the front template (1) and the supporting plate (3);
firstly, performing first color injection molding, opening a mold after a first color ornament product is molded, locking a front template (1) by a mechanical fastener (9), preventing a rear template (2) from separating, namely preventing a front mold core parting surface and a rear mold core parting surface from separating, retreating a supporting plate (3), driving a front rear mold tunnel line position (7) by a shifting block (8) fixed on the supporting plate (3) to perform core pulling movement, separating the shifting block (8) from the front rear mold tunnel line position (7) after core pulling is in place, and ending the locking function of the mechanical fastener; and continuing to retreat, separating the front template (1) and the rear template (2), namely separating the parting surfaces of the front mold core and the rear mold core, leaving the first-color injection molding product on the rear mold core (5) of the rear template (2), retreating to stop when the rear template (2) retreats to a set position, locking the pulled back template (2) and the supporting plate (3) by a mechanical buckling machine (9), rotating the rear mold for 180 degrees, completing the mold changing operation of the second-color injection molding, closing the rear mold and the second-color front mold, and carrying out second-color injection molding on the first-color ornament product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910388793.1A CN110103397B (en) | 2019-05-10 | 2019-05-10 | Double-shot injection mold with front rear mold tunnel row position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910388793.1A CN110103397B (en) | 2019-05-10 | 2019-05-10 | Double-shot injection mold with front rear mold tunnel row position |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110103397A CN110103397A (en) | 2019-08-09 |
| CN110103397B true CN110103397B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910388793.1A Active CN110103397B (en) | 2019-05-10 | 2019-05-10 | Double-shot injection mold with front rear mold tunnel row position |
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| Country | Link |
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| CN (1) | CN110103397B (en) |
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| CN210174071U (en) * | 2019-05-10 | 2020-03-24 | 骏艺精密模具（苏州）有限公司 | Double-color injection mold with preposed rear mold tunnel slide position |
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2019
- 2019-05-10 CN CN201910388793.1A patent/CN110103397B/en active Active
Patent Citations (9)
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| KR20130101739A (en) * | 2012-03-06 | 2013-09-16 | 주식회사 신한금형 | Two shot injection molding with tunnel-gate for double shooting out |
| JP2015066773A (en) * | 2013-09-27 | 2015-04-13 | ダイキョーニシカワ株式会社 | Rotary 2-color injection molding device for resin window |
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|---|---|
| CN110103397A (en) | 2019-08-09 |
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