CN202412678U - Molding equipment for blow-molded product - Google Patents
Molding equipment for blow-molded product Download PDFInfo
- Publication number
- CN202412678U CN202412678U CN2011204894005U CN201120489400U CN202412678U CN 202412678 U CN202412678 U CN 202412678U CN 2011204894005 U CN2011204894005 U CN 2011204894005U CN 201120489400 U CN201120489400 U CN 201120489400U CN 202412678 U CN202412678 U CN 202412678U
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- Prior art keywords
- mould
- vacuum
- aspirating hole
- pipeline
- parison
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Abstract
The utility model discloses molding equipment for a blow-molded product. The molding equipment comprises a hopper, a screw shearing mechanism, a mold, a blowing-up device, mold closing mechanisms and a driving mechanism; the hopper is connected with the screw shearing mechanism through a conveying pipeline; the mold is arranged below an output port of the screw shearing mechanism; the mold is connected with the blowing-up device; the mold closing mechanisms are arranged on two sides of the mold; and the screw shearing mechanism and the mold closing mechanisms are respectively connected with the driving mechanism. The molding equipment is characterized by also being provided with a vacuum plastic adsorbing device, and the vacuum plastic adsorbing device is connected with the mold. By using the molding equipment, through arranging the vacuum plastic adsorbing device, not only can some deep-cavity and narrow-cavity plastic products which cannot be molded by using an ordinary blow molding process be molded, but also the molding speed of a blank is quickened; the molding period of the blank is shortened; and the production efficiency is improved.
Description
Technical field
The utility model relates to the blow-molded article forming technique, is specifically related to a kind of blow-molded article former.
Background technology
Along with developing of automobile industry, the continuous expansion of automobile scale and the raising of performance have driven parts and associated materials industrial expansion.The main direction of our times automotive material technical development is lightweight, environmental protectionization, for reducing integral vehicle cost and deadweight thereof, increases the payload of automobile, improves the use amount of plastic materials in automobile and just becomes key.The plastic part that adopts hollow blow molding in the automobile is as parts, not only makes the good combination property that automobile is whole, but also reduced automobile manufacturing cost, improved added value, formed the trend that progressively replaces Injection moulded part, metallic article.But existing plastic part generally only adopts blowing or plastics sucking moulding equipment in forming process, plastic part only receives the active force of a side in mould molding, can only satisfy general plastic part moulding simple in structure.And for the baroque plastic part of picture auto parts and components, single blowing or plastics sucking moulding equipment are difficult to make parison and mold cavity assembly well; And for complex-shaped plastic part, required time of single blowing or plastic uptake is long, and under the situation of insufficient pressure, the material of upper and lower mould side very easily sticks together in the mould, occurs easily blowing brokenly or situation that can't moulding.Therefore satisfied not the demand of complicated plastic part moulding with common single blowing or plastics sucking moulding equipment.
Summary of the invention
The shortcoming that the purpose of the utility model is to overcome prior art provides the blow-molded article former of fast, the complicated plastic part good forming effect of a kind of shaping speed, high efficiency with not enough.
The purpose of the utility model realizes through following technical proposals: a kind of blow-molded article former; Comprise hopper, screw rod shearing mechanism, mould, huffing device, clamping and transmission mechanism; Said hopper is connected with screw rod shearing mechanism through conveyance conduit, and said mould is arranged on screw rod shearing mechanism delivery outlet below, and said mould is connected with huffing device; The both sides of said mould are provided with clamping; Said screw rod shearing mechanism, clamping are connected with transmission mechanism respectively, and said equipment also is provided with the vacuum forming device, and the vacuum forming device is connected with mould.
Said vacuum forming device makes between parison outer surface and the mold cavity behind the inflation and forms negative pressure, and the parison behind the inflation is extended below and the mould assembly in enough pressure differentials.
Said vacuum forming device includes pipeline, vavuum pump, negative-pressure cup, Pressure gauge, vacuum valve, vacuum chamber, vacuum passage, back of the body reaming and aspirating hole, and said vavuum pump is connected with pipeline one end, and said negative-pressure cup is arranged on the pipeline; Said Pressure gauge is connected with negative-pressure cup; Said vacuum valve is arranged in the pipeline, and said vacuum chamber is connected with the other end of pipeline, and said vacuum passage is connected with vacuum chamber; Said back of the body reaming is connected with vacuum passage, and said aspirating hole is connected with back of the body reaming.
The negative-pressure cup of vacuum forming device and connected Pressure gauge are used to show vacuum forming device negative pressure value, and the vacuum valve of vacuum forming device can be controlled the size and the speed of vavuum pump rate of air sucked in required according to the negative pressure value that Pressure gauge shows.
Said aspirating hole is connected with mold cavity, and the position of aspirating hole should be positioned at the position that parison outer surface and mold cavity face behind the inflation contact at last; The number of said aspirating hole is a plurality of, is evenly distributed on the bottommost and the corner of mold cavity.
As optimal technical scheme, the number of said aspirating hole is 10 ~ 30, and especially at parison profile complex region, the aspirating hole number is concentrated relatively; And for the position on big plane; The number of said aspirating hole is 30, and the spacing of said aspirating hole is 10 ~ 20mm, and aspirating hole will be evenly distributed; Aperture and hole count should guarantee during plastic uptake, promptly the mold cavity air to be extracted out, and on the parison wall, do not stay the pore vestige.
Said the said equipment also is provided with parison thickness control system, and parison thickness control system comprises axial wall thickness control system and radial thickness control system, with the gap of adjustment mouthful mould die lip and core rod.
The principle of the utility model is: in the blow molding technical process; At the mould matched moulds with when in parison, blowing; Carry out vacuum forming, make between parison outer surface and the mold cavity behind the inflation and form negative pressure, make the parison behind the inflation extend below moulding in enough pressure differentials.
The forming method of the utility model comprises the steps: that (1) shear parison; (2) expecting in the mould under the parison after shearing; (3) mould matched moulds, vavuum pump extracts the air in the mold cavity through pipeline, and the material of the upper and lower mould side of mould is fully fitted with mould respectively; (4) parison blowing moulding, vavuum pump extracts the air in the mold cavity through pipeline, make between parison outer surface and the mold cavity behind the inflation and form negative pressure, parison under action of pressure with the mold cavity wall assembly; (5) parison cools demoulding step.
The utility model range of application: the utility model can be widely used in the moulding of hollow blow molding goods, not only can accelerate shaping speed, enhances productivity, can also moulding some with common blow molding technology can't moulding dark, narrow chamber goods.
The utility model has following advantage and effect with respect to prior art:
The utility model blow-molded article former, through the vacuum forming device is set, when the mould matched moulds, vavuum pump extracts the air in the mold cavity through pipeline, and the material of the upper and lower mould side of mould is fully fitted with mould respectively; During the parison blowing moulding; Vavuum pump extracts the air in the mold cavity through pipeline, makes between parison outer surface and the mold cavity behind the inflation and forms negative pressure, makes the parison behind the inflation extend below moulding in enough pressure differentials; Not only can moulding some with common blow molding technology can't moulding dark, narrow chamber plastic products; And accelerated parison formation speed, and shortened the parison formation cycle, improved production efficiency.
Description of drawings
Fig. 1 is a vacuum forming device sketch map.
Fig. 2 is the overview flow chart of the utility model forming method.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the embodiment of the utility model is not limited thereto.
Embodiment one
As shown in Figure 1, a kind of blow-molded article former comprises hopper, screw rod shearing mechanism, mould, huffing device, clamping, transmission mechanism and vacuum forming device; Hopper is connected with screw rod shearing mechanism through conveyance conduit; Mould is arranged on screw rod shearing mechanism delivery outlet below, and mould is connected with huffing device, and the both sides of mould are provided with clamping; Screw rod shearing mechanism, clamping are connected with transmission mechanism respectively, and the vacuum forming device is connected with mould.
The vacuum forming device includes pipeline 5, vavuum pump 1, negative-pressure cup 3, Pressure gauge 2, vacuum valve 4, vacuum chamber 6, vacuum passage 7, back of the body reaming 8 and aspirating hole 9, and vavuum pump 1 is connected with pipeline 5 one ends, and negative-pressure cup 3 is arranged on the pipeline 5; Pressure gauge 2 is connected with negative-pressure cup 3; Vacuum valve 4 is arranged in the pipeline 5, and vacuum chamber 6 is connected with pipeline 5 other ends, and vacuum passage 7 is connected with vacuum chamber 6; Back of the body reaming 8 is connected with vacuum passage 7, and aspirating hole 9 is connected with back of the body reaming 8.Aspirating hole 9 is connected with mold cavity 10, and the position of aspirating hole 9 should be positioned at 10 positions that contact at last of parison outer surface and mold cavity behind the inflation.
The vacuum forming device makes between parison outer surface and the mold cavity 10 behind the inflation and forms negative pressure, and the parison behind the inflation is extended below and the mould assembly in enough pressure differentials.
Equipment also is provided with parison thickness control system.Parison thickness control system comprises axial wall thickness control system and radial thickness control system, with the gap of adjustment mouthful mould die lip and core rod.
As shown in Figure 2, the forming method of the utility model comprises the steps: extruded parisons behind the polymer melting mixing; Parison is sheared; Expecting in the mould under the parison after shearing; Parison is sealed pre-blowing gas; The mould matched moulds, vavuum pump extracts the air in the mold cavity through pipeline, and the material of the upper and lower mould side of mould is fully fitted with mould respectively; The parison blowing moulding, vavuum pump extracts the air in the mold cavity through pipeline, make between parison outer surface and the mold cavity behind the inflation and form negative pressure, parison under action of pressure with the mold cavity assembly; The parison cools demoulding.
Mould matched moulds and vavuum pump carry out through the air that pipeline extracts in the mold cavity simultaneously, the material of upper and lower mould side in the mould can be stretched rapidly fully do not stick together, and improve the applying degree of parison and mould; Parison blowing moulding and vavuum pump carry out through the air that pipeline extracts in the mold cavity simultaneously, and operating efficiency can be provided, and shorten the parison blow molding time, reach good molding effect.
Embodiment two
Present embodiment except that following characteristics with embodiment one: the number of said aspirating hole is 5, and the spacing of aspirating hole is 10mm, is evenly distributed on the bottommost and the corner of mold cavity.
Embodiment three
Present embodiment except that following characteristics with embodiment one: the number of said aspirating hole is 20, and especially at parison profile complex region, aspirating hole is concentrated relatively.
Embodiment four
Present embodiment except that following characteristics with embodiment one: the number of said aspirating hole is 30; Position for big plane; The spacing of aspirating hole is 20mm; Aspirating hole will be evenly distributed, and aperture and hole count should guarantee during plastic uptake, promptly the mold cavity air to be extracted out, and on the parison wall, do not stay the pore vestige.
The foregoing description is the utility model preferred implementation; But the embodiment of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.
Claims (7)
1. blow-molded article former; Comprise hopper, screw rod shearing mechanism, mould, huffing device, clamping and transmission mechanism; Said hopper is connected with screw rod shearing mechanism through conveyance conduit, and said mould is arranged on screw rod shearing mechanism delivery outlet below, and said mould is connected with huffing device; The both sides of said mould are provided with clamping; Said screw rod shearing mechanism, clamping are connected with transmission mechanism respectively, and it is characterized in that: said equipment also is provided with the vacuum forming device, and the vacuum forming device is connected with mould.
2. equipment according to claim 1; It is characterized in that: said vacuum forming device includes pipeline, vavuum pump, negative-pressure cup, Pressure gauge, vacuum valve, vacuum chamber, vacuum passage, back of the body reaming and aspirating hole, and said vavuum pump is connected with pipeline one end, and said negative-pressure cup is arranged on the pipeline; Said Pressure gauge is connected with negative-pressure cup; Said vacuum valve is arranged in the pipeline, and said vacuum chamber is connected with the other end of pipeline, and said vacuum passage is connected with vacuum chamber; Said back of the body reaming is connected with vacuum passage, and said aspirating hole is connected with back of the body reaming.
3. equipment according to claim 2 is characterized in that: said aspirating hole is connected with mold cavity.
4. equipment according to claim 2 is characterized in that: the number of said aspirating hole is a plurality of, is evenly distributed on the bottommost and the corner of mold cavity.
5. equipment according to claim 4 is characterized in that: the number of said aspirating hole is 10～30.
6. equipment according to claim 4 is characterized in that: the spacing of said aspirating hole is 10～20mm.
7. equipment according to claim 1 is characterized in that: said equipment also is provided with parison thickness control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204894005U CN202412678U (en) | 2011-11-30 | 2011-11-30 | Molding equipment for blow-molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204894005U CN202412678U (en) | 2011-11-30 | 2011-11-30 | Molding equipment for blow-molded product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202412678U true CN202412678U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204894005U Expired - Fee Related CN202412678U (en) | 2011-11-30 | 2011-11-30 | Molding equipment for blow-molded product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202412678U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490348A (en) * | 2011-11-30 | 2012-06-13 | 广州市中新塑料有限公司 | Method and equipment for forming blow molding products |
| CN104354292A (en) * | 2014-10-16 | 2015-02-18 | 苏州华冲精密机械有限公司 | High-precision suction mold |
| CN112277291A (en) * | 2020-10-21 | 2021-01-29 | 纪汉成 | Preparation method of intelligent sterilized purified water barrel |
| CN117072780A (en) * | 2023-10-13 | 2023-11-17 | 常州泰润塑业有限公司 | Sealing device and blow molding system and method using same |
-
2011
- 2011-11-30 CN CN2011204894005U patent/CN202412678U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490348A (en) * | 2011-11-30 | 2012-06-13 | 广州市中新塑料有限公司 | Method and equipment for forming blow molding products |
| CN104354292A (en) * | 2014-10-16 | 2015-02-18 | 苏州华冲精密机械有限公司 | High-precision suction mold |
| CN112277291A (en) * | 2020-10-21 | 2021-01-29 | 纪汉成 | Preparation method of intelligent sterilized purified water barrel |
| CN117072780A (en) * | 2023-10-13 | 2023-11-17 | 常州泰润塑业有限公司 | Sealing device and blow molding system and method using same |
| CN117072780B (en) * | 2023-10-13 | 2024-01-02 | 常州泰润塑业有限公司 | Sealing device and blow molding system and method using same |
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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: 20120905 Termination date: 20151130 |
|
| EXPY | Termination of patent right or utility model |