CN109705535A - A kind of Shooting Technique of plastic tub - Google Patents
A kind of Shooting Technique of plastic tub Download PDFInfo
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- CN109705535A CN109705535A CN201811442850.1A CN201811442850A CN109705535A CN 109705535 A CN109705535 A CN 109705535A CN 201811442850 A CN201811442850 A CN 201811442850A CN 109705535 A CN109705535 A CN 109705535A
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- plastic tub
- injection molding
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- shooting technique
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Abstract
The invention discloses a kind of Shooting Techniques of plastic tub, comprising the following steps: raw material: raw material is 32 parts of polyester slice, 5 parts of amino resins, 3 parts of butadiene, lignin part, 1 part of methylcellulose, 11 parts of polyvinyl alcohol, 9 parts of glacial acetic acid and 7 parts of benzoic acid in parts by weight；Injection molding prepares: polyester slice, amino resins, butadiene, lignin and methylcellulose being successively first put into mixing drum stirring, reinforcing agent is added when stirring and arrives.A kind of Shooting Technique of plastic tub of the present invention, first, it is higher to be molded the finished product hardness formed, it is not easy to rupture, improve the long service life of plastic tub, any peculiar smell and toxic gas are not generated during producing simultaneously, secondly, can be improved the integrity degree of injection molding and the uniformity of finished product internal material, while further increasing the hardness of finished product, the impact hardness, tensile strength and tensile strength that plastic tub can also be improved, bring better prospect of the application.
Description
Technical field
The present invention relates to Shooting Technique field, in particular to a kind of Shooting Technique of plastic tub.
Background technique
Injection molding is a kind of method of industrial products production moulding, and product is usually using rubber injection mold and plastic injection, injection molding
Can also dispense molding die platen press and casting die, plastic tub be also required in production using to injection moulding apparatus by the plastic cement after thawing
It is injected into mold, passes through mold extrusion forming；
There are certain drawbacks in the Shooting Technique of existing plastic tub, existing plastic tub is in injection molding, modeling when in use
The thinner thickness of feed basin, so corresponding the distance between dynamic model and cover half are also smaller, in injection molding, since thermoplastic cement has
Mobility itself is smaller, while also more sticky, and thermoplastic cement is difficult to enter into these narrow spaces, secondly, thermoplastic cement
When touching the narrow position of mould inside, since the contact area between thermoplastic cement and mould inner wall increases, heat dissipation is very fast,
So that solidification phenomenon occurs in thermoplastic cement surface, the flowing of plastic cement, also, existing plastic tub injection raw material are influenced, is being burnt
When produce length and can generate peculiar smell and toxic gas, processing environment and the health of staff are influenced, for this purpose, it is proposed that a kind of
The Shooting Technique of plastic tub.
Summary of the invention
The main purpose of the present invention is to provide a kind of Shooting Techniques of plastic tub, can effectively solve in background technique
Problem.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of Shooting Technique of plastic tub, comprising the following steps:
(1), raw material: raw material is polyester slice, amino resins, butadiene, lignin, methylcellulose, polyvinyl alcohol, ice
Acetic acid and benzoic acid；
(2), injection molding prepares: being first successively put into polyester slice, amino resins, butadiene, lignin and methylcellulose
Reinforcing agent is added in mixing drum stirring, when stirring；
(3), the pre-heat treatment: first dynamic model and cover half internal washing are polished, and dynamic model and cover half are heated to 120~150
℃；
(4), it is molded: pulling open 0.5~1mm between dynamic model and cover half, added the raw material that injection molding prepares to obtain by injection molding machine
Heat is injected into mold；
(5), pressing mold: after injection molding, injection molding machine movable extrusion mold is controlled, dynamic model and cover half mold；
(6), it is opened: the mold after injection molding being cooled down, opens mold later, obtains plastic tub finished product.
Preferably, in the step (1), raw material in parts by weight: 30~35 parts of polyester slice, 5~6 parts of amino resins,
3~4 parts of butadiene, 3~4 parts of lignin, 1~2 part of methylcellulose, 10~12 parts of polyvinyl alcohol, 8~10 parts of glacial acetic acid and benzene
7~8 parts of formic acid.
Preferably, in the step (2), reinforcing agent is by being successively put into glass for polyvinyl alcohol, glacial acetic acid and benzoic acid
It in ware, and is stirred, is uniformly mixing to obtain using glass bar.
Preferably, in the step (2), stirring the following steps are included:
(2.1), the first stage: when polyester slice, amino resins and butadiene is added, with the stirring of 120~150r/min
Speed stirring；
(2.2), second stage: being added lignin, is stirred with the mixing speed of 180~200r/min；
(2.3), the phase III: being added methylcellulose, is stirred with the mixing speed of 50~60r/min.
Preferably, in the step (3), when cleaning, is rinsed using giant, and giant pressure is 5~6Mpa.
Preferably, described not walk in (4), heating temperature is 300~320 DEG C.
Preferably, in the step (5), the pressure of movable extrusion mold is 40~45Mpa, and extrusion time is 5~6s.
Preferably, in the step (6), cooling time is 2~3s, opens mold when temperature reaches 56~60 DEG C.
Compared with prior art, the invention has the following beneficial effects:
1, the present invention improves the raw material of plastic tub, and the finished product hardness for being molded formation is higher, it is not easy to rupture, mention
The long service life of high plastic tub, while not generating any peculiar smell and toxic gas during producing；
2, in injection molding, first a certain distance will be pulled open between dynamic model and cover half, so that mould inside flows out thermoplastic cement
Space needed for flowing, facilitates thermoplastic cement to flow to each position of mould inside, while the distance pulled open is smaller, thermoplastic cement is not
It can be flowed out from gap, after being molded, then carry out extruding molding, can be improved the integrity degree and finished product internal material of injection molding
The uniformity, while further increasing the hardness of finished product；
3, characteristic of the present invention according to the various raw materials of reinforcing agent, mixing speed and temperature when control different material mixes,
Reinforcing agent can be improved the impact hardness, tensile strength and tensile strength of plastic tub to various polymer agglomerates abilities.
Detailed description of the invention
Fig. 1 is a kind of Shooting Technique overall structure flow chart of plastic tub of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
As shown in Figure 1, comprising the following steps:
(1), raw material: raw material be in parts by weight 32 parts of polyester slice, 5 parts of amino resins, 3 parts of butadiene, lignin part,
1 part of methylcellulose, 11 parts of polyvinyl alcohol, 9 parts of glacial acetic acid and 7 parts of benzoic acid；
(2), injection molding prepares: being first successively put into polyester slice, amino resins, butadiene, lignin and methylcellulose
Reinforcing agent is added in mixing drum stirring, when stirring, and reinforcing agent is by being successively put into glass dish for polyvinyl alcohol, glacial acetic acid and benzoic acid
In, and be stirred, be uniformly mixing to obtain using glass bar, stirring the following steps are included:
(2.1), it the first stage: when polyester slice, amino resins and butadiene is added, is stirred with the mixing speed of 130r/min
It mixes；
(2.2), second stage: being added lignin, is stirred with the mixing speed of 190r/min；
(2.3), the phase III: being added methylcellulose, is stirred with the mixing speed of 55r/min；
(3), the pre-heat treatment: first polishing dynamic model and cover half internal washing, and when cleaning is rinsed using giant, high pressure water
Rifle pressure is 6Mpa, and dynamic model and cover half are heated to 130 DEG C；
(4), it is molded: injection molding being prepared by the heating of obtained raw material by injection molding machine and is injected into mold, heating temperature 310
℃；
(5), pressing mold: after injection molding, injection molding machine movable extrusion mold is controlled, the pressure of movable extrusion mold is 45Mpa, and extrusion time is
5s, dynamic model and cover half mold；
(6), be opened: the mold after injection molding cooled down, cooling time 2s, the opening when temperature reaches 56 DEG C later
Mold obtains plastic tub finished product.
Embodiment 2
As shown in Figure 1, comprising the following steps:
(1), raw material: raw material be in parts by weight 32 parts of polyester slice, 5 parts of amino resins, 3 parts of butadiene, lignin part,
1 part of methylcellulose, 11 parts of polyvinyl alcohol, 9 parts of glacial acetic acid and 7 parts of benzoic acid；
(2), injection molding prepares: being first successively put into polyester slice, amino resins, butadiene, lignin and methylcellulose
Reinforcing agent is added in mixing drum stirring, when stirring, and reinforcing agent is by being successively put into glass dish for polyvinyl alcohol, glacial acetic acid and benzoic acid
In, and be stirred, be uniformly mixing to obtain using glass bar, stirring the following steps are included:
(2.1), it the first stage: when polyester slice, amino resins and butadiene is added, is stirred with the mixing speed of 130r/min
It mixes；
(2.2), second stage: being added lignin, is stirred with the mixing speed of 190r/min；
(2.3), the phase III: being added methylcellulose, is stirred with the mixing speed of 55r/min；
(3), the pre-heat treatment: first polishing dynamic model and cover half internal washing, and when cleaning is rinsed using giant, high pressure water
Rifle pressure is 6Mpa, and dynamic model and cover half are heated to 130 DEG C；
(4), it is molded: pulling open 0.5mm between dynamic model and cover half, injection molding is prepared by obtained raw material heating note by injection molding machine
Enter into mold, heating temperature is 310 DEG C；
(5), pressing mold: after injection molding, injection molding machine movable extrusion mold is controlled, the pressure of movable extrusion mold is 45Mpa, and extrusion time is
5s, dynamic model and cover half mold；
(6), be opened: the mold after injection molding cooled down, cooling time 2s, the opening when temperature reaches 56 DEG C later
Mold obtains plastic tub finished product.
Embodiment 3
As shown in Figure 1, comprising the following steps:
(1), raw material: raw material be in parts by weight 32 parts of polyester slice, 5 parts of amino resins, 3 parts of butadiene, lignin part,
1 part of methylcellulose, 11 parts of polyvinyl alcohol, 9 parts of glacial acetic acid and 7 parts of benzoic acid；
(2), injection molding prepares: being first successively put into polyester slice, amino resins, butadiene, lignin and methylcellulose
Reinforcing agent is added in mixing drum stirring, when stirring, and reinforcing agent is by being successively put into glass dish for polyvinyl alcohol, glacial acetic acid and benzoic acid
In, and be stirred, be uniformly mixing to obtain using glass bar, stirring the following steps are included:
(2.1), it the first stage: when polyester slice, amino resins and butadiene is added, is stirred with the mixing speed of 130r/min
It mixes；
(2.2), second stage: being added lignin, is stirred with the mixing speed of 190r/min；
(2.3), the phase III: being added methylcellulose, is stirred with the mixing speed of 55r/min；
(3), the pre-heat treatment: first polishing dynamic model and cover half internal washing, and when cleaning is rinsed using giant, high pressure water
Rifle pressure is 6Mpa, and dynamic model and cover half are heated to 130 DEG C；
(4), it is molded: pulling open 0.8mm between dynamic model and cover half, injection molding is prepared by obtained raw material heating note by injection molding machine
Enter into mold, heating temperature is 310 DEG C；
(5), pressing mold: after injection molding, injection molding machine movable extrusion mold is controlled, the pressure of movable extrusion mold is 45Mpa, and extrusion time is
5s, dynamic model and cover half mold；
(6), be opened: the mold after injection molding cooled down, cooling time 2s, the opening when temperature reaches 56 DEG C later
Mold obtains plastic tub finished product.
Embodiment 4
As shown in Figure 1, comprising the following steps:
(1), raw material: raw material be in parts by weight 32 parts of polyester slice, 5 parts of amino resins, 3 parts of butadiene, lignin part,
1 part of methylcellulose, 11 parts of polyvinyl alcohol, 9 parts of glacial acetic acid and 7 parts of benzoic acid；
(2), injection molding prepares: being first successively put into polyester slice, amino resins, butadiene, lignin and methylcellulose
Reinforcing agent is added in mixing drum stirring, when stirring, and reinforcing agent is by being successively put into glass dish for polyvinyl alcohol, glacial acetic acid and benzoic acid
In, and be stirred, be uniformly mixing to obtain using glass bar, stirring the following steps are included:
(2.1), it the first stage: when polyester slice, amino resins and butadiene is added, is stirred with the mixing speed of 130r/min
It mixes；
(2.2), second stage: being added lignin, is stirred with the mixing speed of 190r/min；
(2.3), the phase III: being added methylcellulose, is stirred with the mixing speed of 55r/min；
(3), the pre-heat treatment: first polishing dynamic model and cover half internal washing, and when cleaning is rinsed using giant, high pressure water
Rifle pressure is 6Mpa, and dynamic model and cover half are heated to 130 DEG C；
(4), it is molded: pulling open 1mm between dynamic model and cover half, injection molding is prepared by the heating injection of obtained raw material by injection molding machine
Into mold, heating temperature is 310 DEG C；
(5), pressing mold: after injection molding, injection molding machine movable extrusion mold is controlled, the pressure of movable extrusion mold is 45Mpa, and extrusion time is
5s, dynamic model and cover half mold；
(6), be opened: the mold after injection molding cooled down, cooling time 2s, the opening when temperature reaches 56 DEG C later
Mold obtains plastic tub finished product.
1 control group of embodiment in table 1, using conventional injection moulding process, embodiment 2~4 be 0.5~1 be using with a thickness of
The mold of 3mm plastic tub, is pulled open under different distance between dynamic model and cover half, and interception length and width are respectively the modeling of 5cm after plastic tub forming
Its tensile strength of flitch and plastic tub average thickness testing result are as follows:
By 1 experimental data of table it is found that the Shooting Technique of plastic tub of the present invention, is made plastics into excessively conventional injection moulding process
Basin, since distance is smaller between mold dynamic model and cover half, when between thermoplastic cement flow through molds dynamic model and cover half, thermoplastic cement with
Contact area between mold increases, and radiating rate is very fast, so that solidification phenomenon occurs in thermoplastic cement surface, causes thickness obvious
Predetermined thickness when Mold Making is not achieved, at the same the plastic tub produced itself tensile strength it is smaller, and by being molded
It is preceding a certain distance to be pulled open between dynamic model and cover half, enough flowing spaces are provided for thermoplastic cement flowing, first make hot melt plastic
Glue flows in each position of mould inside, and pressurization makes to be bonded between dynamic model and cover half later, reaches required thickness by squeezing, leads to
It crosses plastic tub internal density when squeezing to improve, to improve hardness with the continuous person increase to space out, the drawing of plastic tub
It stretches intensity also constantly to increase, but the dosage of thermoplastic cement is more, while as the distance pulled open increases, thermoplastic cement outflow
The amount of mold is also bigger, has certain dangerous and waste, and separately embodiment 3 is optimal selection as shown in Table 1.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of Shooting Technique of plastic tub, which comprises the following steps:
(1), raw material: raw material is polyester slice, amino resins, butadiene, lignin, methylcellulose, polyvinyl alcohol, glacial acetic acid
And benzoic acid；
(2), injection molding prepares: polyester slice, amino resins, butadiene, lignin and methylcellulose being successively first put into stirring
Reinforcing agent is added in cylinder stirring, when stirring；
(3), the pre-heat treatment: first dynamic model and cover half internal washing are polished, and dynamic model and cover half are heated to 120~150 DEG C；
(4), it is molded: pulling open 0.5~1mm between dynamic model and cover half, injection molding is prepared by obtained raw material heating note by injection molding machine
Enter into mold；
(5), pressing mold: after injection molding, injection molding machine movable extrusion mold is controlled, dynamic model and cover half mold；
(6), it is opened: the mold after injection molding being cooled down, opens mold later, obtains plastic tub finished product.
2. a kind of Shooting Technique of plastic tub according to claim 1, it is characterised in that: in the step (1), raw material is pressed
Parts by weight: 30~35 parts of polyester slice, 5~6 parts of amino resins, 3~4 parts of butadiene, 3~4 parts of lignin, methylcellulose
1~2 part, 10~12 parts of polyvinyl alcohol, 8~10 parts of glacial acetic acid and 7~8 parts of benzoic acid.
3. a kind of Shooting Technique of plastic tub according to claim 1, it is characterised in that: in the step (2), reinforcing agent
It by the way that successively polyvinyl alcohol, glacial acetic acid and benzoic acid are put into glass dish, and is stirred, is stirred evenly using glass bar
It arrives.
4. a kind of Shooting Technique of plastic tub according to claim 1, it is characterised in that: in the step (2), stirring packet
Include following steps:
(2.1), the first stage: when polyester slice, amino resins and butadiene is added, with the mixing speed of 120~150r/min
Stirring；
(2.2), second stage: being added lignin, is stirred with the mixing speed of 180~200r/min；
(2.3), the phase III: being added methylcellulose, is stirred with the mixing speed of 50~60r/min.
5. a kind of Shooting Technique of plastic tub according to claim 1, it is characterised in that: in the step (3), when cleaning
It is rinsed using giant, giant pressure is 5~6Mpa.
6. a kind of Shooting Technique of plastic tub according to claim 1, it is characterised in that: described not walk in (4), heating temperature
Degree is 300~320 DEG C.
7. a kind of Shooting Technique of plastic tub according to claim 1, it is characterised in that: in the step (5), squeeze dynamic
The pressure of mould is 40~45Mpa, and extrusion time is 5~6s.
8. a kind of Shooting Technique of plastic tub according to claim 1, it is characterised in that: in the step (6), when cooling
Between be 2~3s, open mold when temperature reaches 56~60 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811442850.1A CN109705535A (en) | 2018-11-29 | 2018-11-29 | A kind of Shooting Technique of plastic tub |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811442850.1A CN109705535A (en) | 2018-11-29 | 2018-11-29 | A kind of Shooting Technique of plastic tub |
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| CN109705535A true CN109705535A (en) | 2019-05-03 |
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| CN201811442850.1A Pending CN109705535A (en) | 2018-11-29 | 2018-11-29 | A kind of Shooting Technique of plastic tub |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112011102A (en) * | 2020-08-12 | 2020-12-01 | 安顺市西秀区丰达塑料制品有限公司 | Manufacturing method of high-strength plastic basin |
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| CN102712118A (en) * | 2009-10-30 | 2012-10-03 | Seb公司 | PET thermoplastic polymer article, and method for the production of such an article |
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2018
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102712118A (en) * | 2009-10-30 | 2012-10-03 | Seb公司 | PET thermoplastic polymer article, and method for the production of such an article |
Non-Patent Citations (2)
| Title |
|---|
| 《工程材料使用手册》编辑委员会: "《工程材料使用手册 第7卷 塑料 透明材料 绝缘材料》", 30 June 2002, 中国标准出版社 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112011102A (en) * | 2020-08-12 | 2020-12-01 | 安顺市西秀区丰达塑料制品有限公司 | Manufacturing method of high-strength plastic basin |
| CN112011102B (en) * | 2020-08-12 | 2022-05-13 | 安顺市西秀区丰达塑料制品有限公司 | Manufacturing method of high-strength plastic basin |
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Application publication date: 20190503 |
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