CN108437341A - A kind of easily demoulding eps foam mold - Google Patents
A kind of easily demoulding eps foam mold Download PDFInfo
- Publication number
- CN108437341A CN108437341A CN201810482872.4A CN201810482872A CN108437341A CN 108437341 A CN108437341 A CN 108437341A CN 201810482872 A CN201810482872 A CN 201810482872A CN 108437341 A CN108437341 A CN 108437341A
- Authority
- CN
- China
- Prior art keywords
- mold
- rack
- plate
- lug boss
- demoulding
- Prior art date
Links
- 239000006260 foams Substances 0.000 title claims abstract description 16
- 239000003570 air Substances 0.000 claims abstract description 34
- 238000005192 partition Methods 0.000 claims description 20
- 230000000630 rising Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 101710075621 GBLP Proteins 0.000 description 9
- 239000007789 gases Substances 0.000 description 6
- 240000006028 Sambucus nigra Species 0.000 description 4
- 239000002984 plastic foam Substances 0.000 description 4
- 238000010586 diagrams Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000004794 expanded polystyrene Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000004033 plastics Substances 0.000 description 2
- 229920003023 plastics Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 210000003205 Muscles Anatomy 0.000 description 1
- 210000003739 Neck Anatomy 0.000 description 1
- 280000015623 Third Space companies 0.000 description 1
- 238000010521 absorption reactions Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 229920002223 polystyrenes Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011901 water Substances 0.000 description 1
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
- 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
Abstract
Description
Technical field
The present invention relates to Foam machining technical fields, and in particular to a kind of easily demoulding eps foam mold.
Background technology
EPS plastic foams are a kind of polystyrene foam plastics, due to its light, firm, shock-absorbing, the low moisture absorption, easily molded And the features such as good water resistance, thermal insulation, low price, it is widely used in the necks such as packaging, heat preservation, waterproof, heat-insulated, damping Domain is one of most widely used plastics in the world today.The molding of plastic foam makes using mold completion, existing EPS plastic foam molding dies are substantially by upper mold and are formed with lower die, are formed with lower die by upper mold of different shapes Die cavity processes the plastic foam of needs.But mold is heavier, when die sinking, molding, needs to spend more muscle power.
To solve the above problems, Authorization Notice No. provides a kind of ice for the Chinese utility model patent of CN104015274B Case widget mold, including upper cavity die and lower punch, the lower punch are equipped with holder, and holder passes through locating shaft and lower punch Left and right sidewall is connected, and the cross bar of the holder is equipped with screw rod, and one end of screw rod is welded on the surface of upper cavity die, the holder It is equipped with a right angle block on the outside of vertical pole, and is correspondingly provided with the groove to match with right angle block in lower cavity die left and right sidewall.But the reality It there is problems with new patent：After mold die sinking, it is difficult to demould, and demoulding needs another person to complete, wave Take manpower.
Invention content
The invention is intended to provide a kind of easily demoulding eps foam mold, to solve, prior art demoulding is difficult, wastes people The problem of power.
A kind of easily demoulding eps foam mold, including upper mold and lower mold, shape between the upper mold and lower mold At forming cavity, the lower mold is connected with rack, and the rack is surrounded by left plate, right plate, front side board, back side panel and bottom plate It forms, the lower mold is fixed between front side board and back side panel, is equipped between the left side and left plate of the lower mold First gap is equipped with the second gap, between the bottom and bottom plate of the lower mold between the right side and right plate of the lower mold There are third space, the inner wall of the left plate slidably connects the first vertical rack, the back side panel be rotatably connected to First rack meshed gears, the gear are located between left plate and lower mold, the upper mold be located at lower mold just on The left side of side, the upper mold is equipped with the second vertical rack, the second rack and pinion engagement, and the inner wall of the bottom plate is set There is air bag, vertical the first lug boss and the second lug boss is communicated at the top of the air bag, first boss is in The underface of one rack is connected with vertical thimble at the top of second lug boss, and the bottom of the lower mold, which is equipped with, to be used for Thimble by through-hole.
The operation principle of the present invention：Gas is filled in air bag, the first lug boss and the second lug boss flexible keep drum It rises, after the completion of mold injection molding, the top of thimble is located at the underface of through-hole at this time, and the top of the first lug boss is located at the first rack Underface.
When being demoulded, upper mold is pulled up, lower mold is fixed between front side board and back side panel, the shifting of upper mold The dynamic movement that will not drive lower mold, because the inner wall of left plate slidably connects the first vertical rack, the inner wall of back side panel It is rotatably connected to gear, the second vertical rack is connected on the left of upper mold, and the first rack and pinion engages, the second rack It is engaged with gear, when pulling up upper mold, upper mold drives the second rack to move up, the second rack drives gear inverse time Needle rotates, and gear drives the first rack slide downward, as upper mold continues to be moved upwardly by, the bottom of the first rack and first convex The portion of rising contact, and the first lug boss is compressed, and air bag is the cavity of sealing, when the first lug boss is compressed, in the first lug boss Air be pressed into air bag, generate certain air pressure in air bag, air pressure drives the air of inside air bag to enter the In two lug bosses, air into fashionable, the expansion of the second lug boss, the second lug boss jacks up thimble, because thimble is located at through-hole Underface, at this time thimble entered in lower mold by through-hole, shaped article is ejected.
After completing demoulding, it is lowered into upper mold, upper mold drives the second rack court to move down, the second rack drives tooth Wheel rotates clockwise, and gear drives the first rack to rise, and the top of the first rack does not recompress the first lug boss, the second lug boss Decline, thimble is deviate from out of lower mold, and the second lug boss and the first lug boss are returned to original state.
Beneficial effects of the present invention：When demoulding, it is only necessary to which a people pulls upper mold, upper mold to pass through the second rack drives Gear turns counterclockwise, and gear drives the first rack to move downward, and the first lug boss is compressed, and the second lug boss is heaved, and second is convex Thimble in the portion of rising enters in through-hole, and thimble ejects shaped article, this programme can solve to demould in the prior art it is difficult, The problem of lost labor.
Further, the bottom of first rack is connected with press section.First rack drives press section squeezes the first protrusion When portion, the contact area of press section and the first lug boss can effectively press the first lug boss.
Further, partition board is connected between the front side board and back side panel, the partition board is located at the underface of lower mold, institute State partition board bottom and air bag top contact, the partition board be equipped with for the first lug boss by the first port, it is described every Be additionally provided at the top of plate for the second lug boss by the second port.The bottom of partition board and the top contact of air bag, partition board energy Enough limitation air bags are heaved upward, can effectively ensure that gas compression gas, and gas as far as possible more enters the second lug boss, protects Demonstrate,proving the second lug boss can quickly heave, and when guarantee is heaved, the second lug boss amount of heaving is big.
Further, the left and right side of the lower mold bottom is equipped with vertical connecting plate, the connecting plate and partition board Top connects, second boss between two side connecting plates, the left and right side of second lug boss with even The inner wall of fishplate bar supports.The connecting plate of mold two bottom sides can limit the transverse direction drum of the second lug boss under setting in this way It rises, in the air for blasting same volume, can ensure that the second lug boss is quickly heaved upward.
Further, second rack is slidably connected between front side board and right plate.It can ensure the second rack in this way Motion track, make its vertical plane slide, and can ensure the second rack sliding when stationarity.
Further, the upper mold is connected with the cylinder for driving it to move up and down.It is driven by cylinder and is moved down on upper mold It is dynamic, it is time saving and energy saving.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of easily demoulding eps foam mold of the present invention；
Fig. 2 Fig. 1 removes the structural schematic diagram of front side board；
Fig. 3 is structural schematic diagram when thimble enters in lower mold in Fig. 2.
Specific implementation mode
It is further described below by specific implementation mode：
Reference numeral in Figure of description includes：Second rack 1, connecting rod 2, cylinder 3, upper mold 4, rack 5, bottom plate 6, connecting plate 7, the second lug boss 8, air bag 9, thimble 10, left plate 11, partition board 12, the first lug boss 13, press section 14, first Rack 15, gear 16, back side panel 17, lower mold 18, right plate 19.
Embodiment is basic as shown in attached drawing 1, Fig. 2 and Fig. 3：A kind of easily demoulding eps foam mold, including upper mold 4 With lower mold 18, upper mold 4 is connected with the cylinder 3 for driving it to move up and down, and molding is formed between upper mold 4 and lower mold 18 Chamber, lower mold 18 connect organic frame 5, connecting rod 2 are connected between cylinder 3 and rack 5, rack 5 is by left plate 11, right plate 19, front side board, back side panel 17 and bottom plate 6 surround, and lower mold 18 is fixed between front side board and back side panel 17, lower die It is equipped with the first gap between the left side and left plate 11 of tool 18, is equipped between second between the right side and right plate 19 of lower mold 18 Gap, there are third spaces, the inner wall of left plate 11 to slidably connect the first vertical tooth between the bottom and bottom plate 6 of lower mold 18 Item 15, back side panel 17 is rotatably connected to is located at left plate 11 and lower mold 18 with 15 meshed gears 16 of the first rack, gear 16 Between, upper mold 4 is located at the surface of lower mold 18, and the left side of upper mold 4 is equipped with the second vertical rack 1, and the second rack 1 is slided Dynamic to be connected between front side board and right plate 19, the second rack 1 and gear 16 engage, and the inner wall of bottom plate 6 is equipped with air bag 9, air bag 9 Top be communicated with vertical the first lug boss 13 and the second lug boss 8, the first lug boss 13 be located at the first rack 15 just under Side, the bottom of the first rack 15 are connected with press section 14, and the top of the second lug boss 8 is connected with vertical thimble 10, lower mold 18 bottom be equipped with for thimble 10 by through-hole, partition board 12 is connected between front side board and back side panel 17, partition board 12 is located at The underface of lower mold 18, the bottom of partition board 12 and the top contact of air bag 9, partition board 12 is equipped with to be passed through for the first lug boss 13 The first port, the top of partition board 12 be additionally provided with for the second lug boss 8 by the second port, the left side of lower 18 bottom of mold It is equipped with vertical connecting plate 7 with right side, connecting plate 7 is connected with the top of partition board 12, and the second lug boss 8 is located at two side connecting plates 7 Between, the inner wall of the left and right side of the second lug boss 8 with connecting plate 7 supports.
Gas is filled in air bag 9,13 and second lug boss 8 of the first lug boss holding flexible is heaved, and mold injection molding is complete Cheng Hou, at this time the top of thimble 10 be located at the underface of through-hole, the top of the first lug boss 13 be located at the first rack 15 just under Side.
When being demoulded, cylinder 3 pulls up upper mold 4, and lower mold 18 is fixed between front side board and back side panel 17, The movement of upper mold 4 will not drive the movement of lower mold 18, because the inner wall of left plate 11 slidably connects the first vertical tooth The inner wall of item 15, back side panel 17 is rotatably connected to gear 16, and the left side of upper mold 4 is connected with the second vertical rack 1, and first Rack 15 and gear 16 engage, and the second rack 1 and gear 16 engage, and when pulling up upper mold 4, upper mold 4 drives second Rack 1 moves up, and the second rack 1 is rotated counterclockwise with moving gear 16, and gear 16 drives 15 slide downward of the first rack, with Upper mold 4 continues to be moved upwardly by, the press section 14 of 15 bottom of the first rack and the contact of the first lug boss 13, and compresses the first protrusion Portion 13, and air bag 9 is the cavity of sealing, when the first lug boss 13 is compressed, the air in the first lug boss 13 is pressed into Into air bag 9, certain air pressure is generated in air bag 9, air pressure drives the air inside air bag 9 to enter in the second lug boss 8, empty Gas into fashionable, the second lug boss 8 expansion, the second lug boss 8 jacks up thimble 10 because thimble 10 be located at through-hole just under Side, thimble 10 is entered by through-hole in lower mold 18 at this time, and shaped article is ejected.
After completing demoulding, it is lowered into upper mold 4, upper mold 4 drives the second rack 1 towards moving down, 1 band of the second rack Moving gear 16 rotates clockwise, and gear 16 drives the first rack 15 to rise, and the top of the first rack 15 does not recompress the first protrusion Portion 13, the second lug boss 8 decline, and the abjection out of lower mold 18 of thimble 10, the second lug boss 8 and the first lug boss 13 are returned to just Beginning state.
Claims (6)
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 true CN108437341A (en) | 2018-08-24 |
| CN108437341B CN108437341B (en) | 2020-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810482872.4A CN108437341B (en) | 2018-05-18 | 2018-05-18 | EPS foam mould convenient to drawing of patterns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108437341B (en) |
Citations (7)
| 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 |
| 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 |
-
2018
- 2018-05-18 CN CN201810482872.4A patent/CN108437341B/en active IP Right Grant
Patent Citations (7)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108437341B (en) | 2020-08-18 |
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