CN108437341B - EPS foam mould convenient to drawing of patterns - Google Patents
EPS foam mould convenient to drawing of patterns Download PDFInfo
- Publication number
- CN108437341B CN108437341B CN201810482872.4A CN201810482872A CN108437341B CN 108437341 B CN108437341 B CN 108437341B CN 201810482872 A CN201810482872 A CN 201810482872A CN 108437341 B CN108437341 B CN 108437341B
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- side plate
- rack
- bellying
- die
- lower die
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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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
-
- 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
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
- B29K2025/04—Polymers of styrene
- B29K2025/06—PS, i.e. polystyrene
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The application discloses an EPS foam mould convenient for demoulding, which belongs to the technical field of foam processing and comprises an upper mould and a lower mould, a forming cavity is formed between the upper die and the lower die, the lower die is connected with a rack, the rack is formed by encircling a left side plate, a right side plate, a front side plate, a rear side plate and a bottom plate, the lower die is fixedly arranged between the front side plate and the rear side plate, the left side plate is connected with a first rack, the rear side plate is rotationally connected with a gear meshed with the first rack, the upper die is positioned right above the lower die, a vertical second rack is arranged on the left side of the upper die and meshed with the gear, an air bag is arranged on the inner wall of the bottom plate, the top intercommunication of gasbag has vertical first bellying and second bellying, the top of second bellying is connected with vertical thimble, the bottom of bed die is equipped with the through-hole that is used for the thimble to pass through. This scheme can the drawing of patterns easy, extravagant manual work not.
Description
Technical Field
The invention relates to the technical field of foam processing, in particular to an EPS foam mold convenient for demolding.
Background
EPS plastic foam is a polystyrene foam plastic, and is widely applied to the fields of packaging, heat preservation, water resistance, heat insulation, shock absorption and the like due to the characteristics of light weight, firmness, shock absorption, low moisture absorption, easy molding, good water resistance, heat insulation, low price and the like, and is one of the most widely applied plastics in the world today. The plastic foam is molded by using a mold, the existing EPS plastic foam molding mold is basically composed of an upper mold and a lower mold, and the required plastic foam is processed by using mold cavities with different shapes formed by the upper mold and the lower mold. However, the mold is heavy, and much physical force is required for opening and closing the mold.
For solving above-mentioned problem, the chinese utility model patent that the grant bulletin number is CN104015274B provides a refrigerator widget mould, including last die and lower terrace die, be equipped with the support on the lower terrace die, the support passes through the location axle and links to each other with the lateral wall about the lower terrace die, be equipped with the screw rod on the horizontal pole of support, the one end welding of screw rod is on the surface of last die, the vertical pole outside of support is equipped with a right angle piece, and corresponds on the lateral wall about the lower terrace die and be equipped with right angle piece assorted recess. However, the utility model has the following problems: after the mold is opened, the mold is difficult to demold, and the demolding is completed by another person, which wastes manpower.
Disclosure of Invention
The invention aims to provide an EPS foam mold convenient for demolding, and aims to solve the problems of difficulty in demolding and labor waste in the prior art.
An EPS foam mold convenient for demolding comprises an upper mold and a lower mold, wherein a molding cavity is formed between the upper mold and the lower mold, the lower mold is connected with a rack, the rack is formed by encircling a left side plate, a right side plate, a front side plate, a rear side plate and a bottom plate, the lower mold is fixedly arranged between the front side plate and the rear side plate, a first gap is arranged between the left side plate and the left side plate of the lower mold, a second gap is arranged between the right side plate and the right side plate of the lower mold, a third gap is reserved between the bottom of the lower mold and the bottom plate, a vertical first rack is connected to the inner wall of the left side plate in a sliding manner, a gear meshed with the first rack is rotatably connected to the rear side plate, the gear is positioned between the left side plate and the lower mold, the upper mold is positioned right above the lower mold, a vertical second rack is arranged on the left side of the upper mold, and the second rack, the inner wall of bottom plate is equipped with the gasbag, the top intercommunication of gasbag has vertical first bellying and second bellying, first bellying is located first rack under, the top of second bellying is connected with vertical thimble, the bottom of bed die is equipped with the through-hole that is used for the thimble to pass through.
The working principle of the invention is as follows: and after the injection molding of the mold is completed, the top of the thimble is positioned under the through hole, and the top of the first boss is positioned under the first rack.
When demoulding is carried out, the upper die is pulled upwards, the lower die is fixed between the front side plate and the rear side plate, the movement of the upper die cannot drive the movement of the lower die, because the inner wall of the left side plate is connected with a vertical first rack in a sliding way, the inner wall of the rear side plate is connected with a gear in a rotating way, the left side of the upper die is connected with a vertical second rack, the first rack is meshed with the gear, the second rack is meshed with the gear, when the upper die is pulled upwards, the upper die drives the second rack to move upwards, the second rack drives the gear to rotate anticlockwise, the gear drives the first rack to slide downwards, along with the continuous upward movement of the upper die, the bottom of the first rack is contacted with the first bulge part and compresses the first bulge part, the air bag is a sealed cavity, when the first bulge part is compressed, air in the first bulge part is extruded into the air bag, and a certain air pressure is generated in the air, the air pressure orders about the inside air of gasbag and enters into the second bellying, and when the entering of air, the second bellying inflation, the second bellying with thimble jack-up, because the thimble is located the through-hole under, the thimble enters into the bed die through the through-hole this moment, and is ejecting with the shaping product.
After the demolding is completed, the upper mold is placed downwards, the upper mold drives the second rack to move downwards, the second rack drives the gear to rotate clockwise, the gear drives the first rack to rise, the top of the first rack does not compress the first boss any longer, the second boss descends, the ejector pin is separated from the lower mold, and the second boss and the first boss are restored to the initial state.
The invention has the beneficial effects that: during the drawing of patterns, only need stimulate the mould alone, go up the mould and drive gear anticlockwise through the second gear, the gear drives first rack and moves down, first bellying is compressed, and the second bellying is bloated, and in the thimble on the second bellying entered into the through-hole, the thimble was ejecting with the shaping product, and drawing of patterns difficulty, extravagant artificial problem among the prior art can be solved to this scheme.
Further, the bottom of the first rack is connected with a pressing part. When the first rack drives the pressing part to extrude the first protruding part, the contact area between the pressing part and the first protruding part can effectively press the first protruding part.
Further, be connected with the baffle between preceding curb plate and the posterior lateral plate, the baffle is located the bed die under, the bottom of baffle and the top contact of gasbag, the baffle is equipped with the first opening that is used for first bellying to pass through, the top of baffle still is equipped with the second opening that is used for the second bellying to pass through. The bottom of baffle and the top contact of gasbag, the baffle can restrict the gasbag and swell up, can effectual assurance atmospheric pressure compressed gas, and gas can enter into the second bellying as much as possible, guarantees that the second bellying can be quick to swell, and when guaranteeing to swell, the second bellying volume of swelling is big.
Further, the left side and the right side of the bottom of the lower die are provided with vertical connecting plates, the connecting plates are connected with the tops of the partition plates, the second protruding portion is located between the connecting plates on the two sides, and the left side and the right side of the second protruding portion are both abutted to the inner walls of the connecting plates. The connecting plates arranged on two sides of the bottom of the lower die can limit the second protruding parts to transversely bulge, and when air with the same volume is blown in, the second protruding parts can be guaranteed to bulge upwards quickly.
Further, the second rack is slidably connected between the front side plate and the right side plate. Therefore, the moving track of the second rack can be ensured, the second rack can slide on the vertical surface, and the stability of the second rack in sliding can be ensured.
Further, the upper die is connected with a cylinder for driving the upper die to move up and down. The upper die is driven by the cylinder to move up and down, so that time and labor are saved.
Drawings
FIG. 1 is a schematic structural view of an EPS foam mold of the present invention for facilitating demolding;
FIG. 2 is a schematic view of the front panel of FIG. 1 taken away;
fig. 3 is a schematic structural view of the thimble shown in fig. 2 entering the lower mold.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a second rack 1, a connecting rod 2, a cylinder 3, an upper die 4, a rack 5, a bottom plate 6, a connecting plate 7, a second boss 8, an air bag 9, a thimble 10, a left side plate 11, a partition plate 12, a first boss 13, a pressing part 14, a first rack 15, a gear 16, a rear side plate 17, a lower die 18 and a right side plate 19.
The embodiment is basically as shown in the attached figures 1, 2 and 3: an EPS foam mould convenient for demoulding comprises an upper mould 4 and a lower mould 18, wherein the upper mould 4 is connected with a cylinder 3 driving the upper mould 4 to move up and down, a forming cavity is formed between the upper mould 4 and the lower mould 18, the lower mould 18 is connected with a frame 5, a connecting rod 2 is connected between the cylinder 3 and the frame 5, the frame 5 is formed by a left side plate 11, a right side plate 19, a front side plate, a rear side plate 17 and a bottom plate 6 in a surrounding manner, the lower mould 18 is fixedly arranged between the front side plate and the rear side plate 17, a first gap is arranged between the left side of the lower mould 18 and the left side plate 11, a second gap is arranged between the right side of the lower mould 18 and the right side plate 19, a third gap is reserved between the bottom of the lower mould 18 and the bottom plate 6, the inner wall of the left side plate 11 is slidably connected with a vertical first rack 15, the rear side plate 17 is rotatably connected with a gear 16 meshed, the upper die 4 is positioned right above the lower die 18, a vertical second rack 1 is arranged on the left side of the upper die 4, the second rack 1 is slidably connected between a front side plate and a right side plate 19, the second rack 1 is meshed with a gear 16, an air bag 9 is arranged on the inner wall of the bottom plate 6, the top of the air bag 9 is communicated with a vertical first protruding portion 13 and a vertical second protruding portion 8, the first protruding portion 13 is positioned right below a first rack 15, the bottom of the first rack 15 is connected with a pressing portion 14, the top of the second protruding portion 8 is connected with a vertical thimble 10, a through hole for the thimble 10 to pass through is formed in the bottom of the lower die 18, a partition plate 12 is connected between the front side plate and a rear side plate 17, the partition plate 12 is positioned right below the lower die 18, the bottom of the partition plate 12 is contacted with the top of the air bag 9, the partition plate 12 is provided with a first through hole for the first protruding portion 13 to pass through, a second through hole for the second protruding, vertical connecting plates 7 are arranged on the left side and the right side of the bottom of the lower die 18, the connecting plates 7 are connected with the tops of the partition plates 12, the second protruding portion 8 is located between the connecting plates 7 on the two sides, and the left side and the right side of the second protruding portion 8 are both abutted to the inner wall of the connecting plates 7.
The air bag 9 is filled with air, the flexible first protruding part 13 and the flexible second protruding part 8 keep bulging, and after the injection molding of the mold is completed, the top of the thimble 10 is positioned right below the through hole, and the top of the first protruding part 13 is positioned right below the first rack 15.
When demoulding is carried out, the cylinder 3 pulls the upper die 4 upwards, the lower die 18 is fixed between the front side plate and the rear side plate 17, the movement of the upper die 4 cannot drive the movement of the lower die 18, because the inner wall of the left side plate 11 is connected with a vertical first rack 15 in a sliding manner, the inner wall of the rear side plate 17 is connected with a gear 16 in a rotating manner, the left side of the upper die 4 is connected with a vertical second rack 1, the first rack 15 is meshed with the gear 16, the second rack 1 is meshed with the gear 16, when the upper die 4 is pulled upwards, the upper die 4 drives the second rack 1 to move upwards, the second rack 1 drives the gear 16 to rotate anticlockwise, the gear 16 drives the first rack 15 to slide downwards, along with the continuous upward movement of the upper die 4, the pressing part 14 at the bottom of the first rack 15 is contacted with the first bulge part 13 and compresses the first bulge part 13, the air bag 9 is a sealed cavity, and when the first bulge part 13 is compressed, the air in the first protruding portion 13 is extruded to enter the air bag 9, a certain air pressure is generated in the air bag 9, the air pressure drives the air in the air bag 9 to enter the second protruding portion 8, when the air enters, the second protruding portion 8 expands, the second protruding portion 8 jacks up the ejector pin 10, the ejector pin 10 is located right below the through hole, and at the moment, the ejector pin 10 enters the lower die 18 through the through hole to eject a molded product.
After demolding is completed, the upper mold 4 is placed downwards, the upper mold 4 drives the second rack 1 to move downwards, the second rack 1 drives the gear 16 to rotate clockwise, the gear 16 drives the first rack 15 to rise, the top of the first rack 15 does not compress the first boss 13 any more, the second boss 8 descends, the thimble 10 is separated from the lower mold 18, and the second boss 8 and the first boss 13 return to the initial state.
Claims (6)
1. The utility model provides a EPS foam mold convenient to drawing of patterns which characterized in that: the lower die is connected with a rack, the rack is formed by encircling a left side plate, a right side plate, a front side plate, a rear side plate and a bottom plate, the lower die is fixedly arranged between the front side plate and the rear side plate, a first gap is arranged between the left side plate and the left side plate of the lower die, a second gap is arranged between the right side plate and the right side plate of the lower die, a third gap is reserved between the bottom of the lower die and the bottom plate, the inner wall of the left side plate is connected with a vertical first rack in a sliding manner, the rear side plate is connected with a gear meshed with the first rack in a rotating manner, the gear is positioned between the left side plate and the lower die, the upper die is positioned right above the lower die, the left side of the upper die is provided with a vertical second rack, the second rack is meshed with the gear, and the inner wall of the bottom plate is provided with an air bag, the top intercommunication of gasbag has vertical first bellying and second bellying, first bellying is located first rack under, the top of second bellying is connected with vertical thimble, the bottom of bed die is equipped with the through-hole that is used for the thimble to pass through.
2. An EPS foam mold facilitating demolding as claimed in claim 1 wherein: the bottom of the first rack is connected with a pressing part.
3. An EPS foam mold facilitating demolding as claimed in claim 2 wherein: be connected with the baffle between preceding curb plate and the posterior lateral plate, the baffle is located the bed die under, the bottom of baffle and the top contact of gasbag, the baffle is equipped with the first opening that is used for first bellying to pass through, the top of baffle still is equipped with the second opening that is used for the second bellying to pass through.
4. An EPS foam mold facilitating demolding as claimed in claim 3 wherein: vertical connecting plates are arranged on the left side and the right side of the bottom of the lower die and are connected with the tops of the partition plates, the second protruding portion is located between the connecting plates on the two sides, and the left side and the right side of the second protruding portion are abutted to the inner walls of the connecting plates.
5. An EPS foam mold facilitating demolding as claimed in claim 4 wherein: the second rack is slidably connected between the front side plate and the right side plate.
6. An EPS foam mold facilitating demolding as claimed in claim 5 wherein: the upper die is connected with an air cylinder which drives the upper die to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810482872.4A CN108437341B (en) | 2018-05-18 | 2018-05-18 | EPS foam mould convenient to drawing of patterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810482872.4A CN108437341B (en) | 2018-05-18 | 2018-05-18 | EPS foam mould convenient to drawing of patterns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108437341A CN108437341A (en) | 2018-08-24 |
| CN108437341B true CN108437341B (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810482872.4A Active CN108437341B (en) | 2018-05-18 | 2018-05-18 | EPS foam mould convenient to drawing of patterns |
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| Country | Link |
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| CN (1) | CN108437341B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334660B (en) * | 2021-04-27 | 2023-08-01 | 东莞市今创塑胶有限公司 | Manufacturing equipment of polyurethane sole |
| CN114505432B (en) * | 2022-02-24 | 2024-05-14 | 漳州锐腾电器有限公司 | Pier extrusion die capable of changing section width of stamping part and pier extrusion precision cutting process |
| CN114536512A (en) * | 2022-03-01 | 2022-05-27 | 河南宏宇新材料科技有限公司 | Refractory material forming device |
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| JP2004262131A (en) * | 2003-03-03 | 2004-09-24 | Bridgestone Corp | Foaming mold and foam molding method |
| CN205967065U (en) * | 2016-08-18 | 2017-02-22 | 重庆泽田汽车部件有限责任公司 | Automatic stamping die of drawing of patterns |
| CN106626247A (en) * | 2016-11-18 | 2017-05-10 | 遵义市剑龙塑料泡沫制品有限公司 | EPS plastic foam mould convenient to strip |
| CN206186242U (en) * | 2016-11-20 | 2017-05-24 | 重庆科创职业学院 | A shedder for injection mold |
| CN206967839U (en) * | 2017-06-27 | 2018-02-06 | 南通辉宏康复器材有限公司 | A kind of polyurethane blowing mold of easy mold release |
| CN207344955U (en) * | 2017-10-31 | 2018-05-11 | 广州捷佛明新材料科技有限公司 | Foaming mould |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020167115A1 (en) * | 2000-02-23 | 2002-11-14 | Yoji Tanaka | Injection molding method and injection mold assembly |
-
2018
- 2018-05-18 CN CN201810482872.4A patent/CN108437341B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004262131A (en) * | 2003-03-03 | 2004-09-24 | Bridgestone Corp | Foaming mold and foam molding method |
| CN205967065U (en) * | 2016-08-18 | 2017-02-22 | 重庆泽田汽车部件有限责任公司 | Automatic stamping die of drawing of patterns |
| CN106626247A (en) * | 2016-11-18 | 2017-05-10 | 遵义市剑龙塑料泡沫制品有限公司 | EPS plastic foam mould convenient to strip |
| CN206186242U (en) * | 2016-11-20 | 2017-05-24 | 重庆科创职业学院 | A shedder for injection mold |
| CN206967839U (en) * | 2017-06-27 | 2018-02-06 | 南通辉宏康复器材有限公司 | A kind of polyurethane blowing mold of easy mold release |
| CN207344955U (en) * | 2017-10-31 | 2018-05-11 | 广州捷佛明新材料科技有限公司 | Foaming mould |
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| CN108437341A (en) | 2018-08-24 |
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Address after: 563319 in the 532 plant area, Fenghua Town, Suiyang County, Zunyi City, Guizhou Province Patentee after: Guizhou Jianzhan Technology Co.,Ltd. Address before: 563319 in the 532 plant area, Fenghua Town, Suiyang County, Zunyi City, Guizhou Province Patentee before: ZUNYI JIANLONG PLASTIC FOAM PRODUCTS Co.,Ltd. |