CN204054488U - A kind of working of plastics mould of improvement - Google Patents
A kind of working of plastics mould of improvement Download PDFInfo
- Publication number
- CN204054488U CN204054488U CN201420145402.6U CN201420145402U CN204054488U CN 204054488 U CN204054488 U CN 204054488U CN 201420145402 U CN201420145402 U CN 201420145402U CN 204054488 U CN204054488 U CN 204054488U
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- China
- Prior art keywords
- sprue gate
- bed die
- mold
- storage cavity
- working
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- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of working of plastics mould of improvement, comprise mold and bed die, the top of mold is provided with rising head, and the side of bed die is provided with sprue gate, the both sides of described mold drift angle are respectively arranged with heating plate, leave gap between two heating plates; The bottom of described bed die is provided with hydraulic pressure filler, and hydraulic pressure filler inside is provided with storage cavity, is provided with hydraulic piston in storage cavity, and the inwall of storage cavity is provided with arc-shaped spring piece, and the bottom of bed die is provided with several grooves; The sidewall at described sprue gate is provided with heater strip, is provided with screen pack in sprue gate.The utility model can improve the deficiencies in the prior art, improves the product quality of plastic product.
Description
Technical field
The utility model relates to a kind of mould, especially a kind of working of plastics mould of improvement.
Background technology
A lot of plastic products use mould disposal molding to make now, and speed is fast, and uniformity is high.Many moulds for plastic products have been had in prior art.Such as Chinese invention patent application CN102825682A discloses a kind of mould of plastics, uses the mode to mold cavity heats to produce.The plastic product using this structure to produce easily produces the problem such as sand holes and crumple crack.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of working of plastics mould of improvement, can solve the deficiencies in the prior art, improves the product quality of plastic product.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A working of plastics mould for improvement, comprises mold and bed die, and the top of mold is provided with rising head, and the side of bed die is provided with sprue gate, and the both sides of described mold drift angle are respectively arranged with heating plate, leaves gap between two heating plates; The bottom of described bed die is provided with hydraulic pressure filler, and hydraulic pressure filler inside is provided with storage cavity, is provided with hydraulic piston in storage cavity, and the inwall of storage cavity is provided with arc-shaped spring piece, and the bottom of bed die is provided with several grooves; The sidewall at described sprue gate is provided with heater strip, is provided with screen pack in sprue gate.
As preferably, described sprue gate takes the shape of the letter U, and the inwall at sprue gate is provided with spiral stream guidance groove, and described screen pack is arranged on the bottom at sprue gate, and the junction of sprue gate and bed die is provided with enlarging.
As preferably, the internal diameter of described enlarging and junction, described sprue gate and enlarging are 2:3 ~ 1:4 with the scope of the ratio of the internal diameter of described bed die junction.
The beneficial effect adopting technique scheme to bring is: the utility model changes the structure heated in mould in prior art, heats from sprue gate, can improve the uniformity that plastic raw materials is heated.During due to plastics cooling forming, crumple crack can be produced at the top of working of plastics, so rising head can be designed in prior art to make up the crumple crack of working of plastics.But, because the speed of each position cooling in mould is inconsistent, can, due to cooling velocity premature cure soon, cause the plastic raw materials in rising head cannot compensate this part at drift angle place.Heating plate is set at the drift angle place of mold, the cooldown rate of this part can be reduced, rising head can be compensated in time to its crumple.Be provided with gap between two heating plates, can prevent because heating plate heating causes the uneven inside caused of the plastic raw materials of corner position heat radiation to produce the insufficient problem of solidification.At bed die, hydraulic pressure filler is set, by hydraulic piston, plastic raw materials is clamp-oned in mould, in this process, when hydraulic piston is by arc-shaped spring piece, can be subject to damping force, after arc-shaped spring piece, damping force disappears, the pulsed which forms hydraulic piston is advanced, and the pulsed achieving plastic raw materials pumps into.Pumped into by the raw material of this pulsed, can the impurity being deposited in mold bottom be poured in groove, decrease the impurity content in finished product.Meanwhile, the raw material pumped into can accelerate leaking of bubble in mould, reduces the generation of sand holes.The transmission length of plastic raw materials can be improved in U-shaped sprue gate, improves the uniformity of heating.In addition, spiral stream guidance groove can make plastic raw materials generation rotation in flow process in sprue gate, and improve the uniformity of plastic raw materials, screen pack is arranged on the bottommost at U-shaped sprue gate, and bottom flow can be utilized to change the turbulent flow of flow direction generation and improve filter effect.Enlarging can carry out deceleration process to the plastic raw materials entered in mould, thus reduces the generation of bubble.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model detailed description of the invention.
Detailed description of the invention
With reference to Fig. 1, the utility model detailed description of the invention comprises mold 1 and bed die 2, and the top of mold 1 is provided with rising head 3, and the side of bed die 2 is provided with sprue gate 4, the both sides of described mold 1 drift angle are respectively arranged with heating plate 5, leave gap between two heating plates 5; The bottom of described bed die 2 is provided with hydraulic pressure filler 6, and hydraulic pressure filler 6 inside is provided with storage cavity 7, is provided with hydraulic piston 8 in storage cavity 7, and the inwall of storage cavity 7 is provided with arc-shaped spring piece 9, and the bottom of bed die 2 is provided with several grooves 10; The sidewall at described sprue gate 4 is provided with heater strip 11, is provided with screen pack 12 in sprue gate 4.Wherein heating plate 5 and heater strip 11 are ripe prior art, and the basic general knowledge that its structure and connected mode are grasped for those skilled in the art, is not described in detail in this.Can purchase from Yancheng Tai Ya electric heating appliance Co., Ltd.
It should be noted that described sprue gate 4 takes the shape of the letter U, the inwall at sprue gate 4 is provided with spiral stream guidance groove 13, and described screen pack 12 is arranged on the bottom at sprue gate 4, and sprue gate 4 is provided with enlarging 14 with the junction of bed die 2.
In addition, the internal diameter of described enlarging 14 and junction, described sprue gate 4 and enlarging 14 are 1:3 with the scope of the ratio of the internal diameter of described bed die 2 junction.
Wherein, the top of rising head is provided with spherical cavity 15, is connected with conical cavity 16 below spherical cavity 15, and the angle of conical cavity sidewall and horizontal direction is 75 °.Mold 1 and bed die 2 are located fixing by tooth shape locating block 17.Spherical cavity 15 can improve the uniformity of the plastic raw materials all directions tension force of molten condition in rising head, and the conical cavity 16 of 75 ° can balance the dual-use function of exhaust and fluid infusion.
Operation principle of the present utility model is: the utility model changes the structure heated in mould in prior art, heats from sprue gate 4, can improve the uniformity that plastic raw materials is heated.During due to plastics cooling forming, crumple crack can be produced at the top of working of plastics, so rising head 3 can be designed in prior art to make up the crumple crack of working of plastics.But, because the speed of each position cooling in mould is inconsistent, can, due to cooling velocity premature cure soon, cause the plastic raw materials in rising head 3 cannot compensate this part at drift angle place.Heating plate 5 is set at the drift angle place of mold 1, the cooldown rate of this part can be reduced, rising head 3 can be compensated in time to its crumple.Be provided with gap between two heating plates 5, can prevent because heating plate 5 heating causes the uneven inside caused of the plastic raw materials of corner position heat radiation to produce the insufficient problem of solidification.At bed die 2, hydraulic pressure filler 6 is set, by hydraulic piston 8, plastic raw materials is clamp-oned in mould, in this process, when hydraulic piston 8 is by arc-shaped spring piece 9, can be subject to damping force, after arc-shaped spring piece 9, damping force disappears, the pulsed which forms hydraulic piston 8 is advanced, and the pulsed achieving plastic raw materials pumps into.Pumped into by the raw material of this pulsed, the impurity being deposited in mold bottom can be poured in groove 10, decrease the impurity content in finished product.Meanwhile, the raw material pumped into can accelerate leaking of bubble in mould, reduces the generation of sand holes.The transmission length of plastic raw materials can be improved in U-shaped sprue gate 4, improves the uniformity of heating.In addition, spiral stream guidance groove 13 can make plastic raw materials produce rotation in flow process in sprue gate 4, improve the uniformity of plastic raw materials, screen pack 12 is arranged on the bottommost at U-shaped sprue gate, and bottom flow can be utilized to change the turbulent flow of flow direction generation and improve filter effect.Enlarging can carry out deceleration process to the plastic raw materials entered in mould, thus reduces the generation of bubble.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. the working of plastics mould improved, comprise mold (1) and bed die (2), the top of mold (1) is provided with rising head (3), the side of bed die (2) is provided with sprue gate (4), it is characterized in that: the both sides of described mold (1) drift angle are respectively arranged with heating plate (5), between two heating plates (5), leave gap; The bottom of described bed die (2) is provided with hydraulic pressure filler (6), hydraulic pressure filler (6) inside is provided with storage cavity (7), hydraulic piston (8) is provided with in storage cavity (7), the inwall of storage cavity (7) is provided with arc-shaped spring piece (9), and the bottom of bed die (2) is provided with several grooves (10); The sidewall at described sprue gate (4) is provided with heater strip (11), is provided with screen pack (12) in sprue gate (4).
2. the working of plastics mould of improvement according to claim 1, it is characterized in that: described sprue gate (4) take the shape of the letter U, the inwall at sprue gate (4) is provided with spiral stream guidance groove (13), described screen pack (12) is arranged on the bottom of sprue gate (4), and sprue gate (4) are provided with enlarging (14) with the junction of bed die (2).
3. the working of plastics mould of improvement according to claim 2, is characterized in that: the internal diameter of described enlarging (14) and described sprue gate (4) junction and enlarging (14) are 2:3 ~ 1:4 with the scope of the ratio of the internal diameter of described bed die (2) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145402.6U CN204054488U (en) | 2014-03-28 | 2014-03-28 | A kind of working of plastics mould of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145402.6U CN204054488U (en) | 2014-03-28 | 2014-03-28 | A kind of working of plastics mould of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204054488U true CN204054488U (en) | 2014-12-31 |
Family
ID=52196069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420145402.6U Expired - Fee Related CN204054488U (en) | 2014-03-28 | 2014-03-28 | A kind of working of plastics mould of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204054488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759602A (en) * | 2015-02-12 | 2015-07-08 | 重庆工商职业学院 | Large sheet metal forming feed system |
| CN112339226A (en) * | 2020-11-03 | 2021-02-09 | 中山北方晶华精密光学有限公司 | Optical lens and processing die thereof |
-
2014
- 2014-03-28 CN CN201420145402.6U patent/CN204054488U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759602A (en) * | 2015-02-12 | 2015-07-08 | 重庆工商职业学院 | Large sheet metal forming feed system |
| CN112339226A (en) * | 2020-11-03 | 2021-02-09 | 中山北方晶华精密光学有限公司 | Optical lens and processing die thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20150328 |
|
| EXPY | Termination of patent right or utility model |