CN104802432B - A kind of production method of octagonal container - Google Patents
A kind of production method of octagonal container Download PDFInfo
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- CN104802432B CN104802432B CN201510193932.7A CN201510193932A CN104802432B CN 104802432 B CN104802432 B CN 104802432B CN 201510193932 A CN201510193932 A CN 201510193932A CN 104802432 B CN104802432 B CN 104802432B
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Abstract
The invention discloses a kind of production method of octagonal container, each component is allocated and sends into the outer layer of distributor, middle level and internal layer in proportion in dispensing and film-making stage, each layer raw material, while pelleter regulates operating temperature, carries out the generation work of sheet material.Presswork under feeding shaping press after sheet material generation.It is molded the control of each step operation time and is molded the control of press operating temperature, it ensure that octagonal container reaches certain thickness and extensibility in forming process, so that it is round and smooth at the flanging of the octagonal container side wall of shaping, chap, cracking phenomena will not be produced, and performance is stable.
Description
Technical field
The present invention relates to the production and processing field of plastic containers, especially a kind of production method of octagonal container.
Background technology
At present, in the dispensing of octagonal container and in the film-making stage, due to the difference and machining temperature of raw material proportioning
The difference of regulation, the formation of sheet material is often difficult to reach defined weight and thickness, the follow-up compressing process of influence.Eight
The formative stage of angular container, the operating temperature of machine and the operating time of each step of shaping are also difficult to control, so as to influence whole
The shaping of individual container is realized.
Once raw material proportioning produces difference or operating temperature does not control to reach the piece that preferable state can cause to produce
Material produces excessively thin or blocked up phenomenon.Sheet material is excessively thin, and ductility is weak, into subsequent forming pressing stage, the folding of octagonal container
Angle is excessive, and sheet material is after sizing, container side wall and the uneven thickness at knuckle, easily occurs chapping at knuckle, showing of ftractureing
As.Sheet material is blocked up, added cost, and the time for completing entirely to be molded increases, and extends the production cycle, influences economic benefit.
The content of the invention
It is an object of the invention to provide one kind plastic containers can be avoided to produce chap, cracking phenomena after being molded, used
During the stable polygonal container of performance production method.
What the present invention was solved is the existing dispensing in octagonal container and in the film-making stage, due to raw material proportioning difference and
The difference of machining temperature adjustment, the formation of sheet material is often difficult to reach defined weight and thickness, and influence is subsequently pressed into
The process of type.In the formative stage of octagonal container, the operating temperature of machine and the operating time of each step of shaping are also difficult to slap
Control, so as to influence the problem of shaping of whole container is realized.
The present invention is that the technical scheme for solving the use of its technical problem is：
Step one：Polypropylene (PP), polyethylene (PE), polyolefin elastomer (POE) and Masterbatch are matched into proportion
Octagonal container outer layer raw material and internal layer raw material；By polypropylene (PP), polyethylene (PE) and polyolefin elastomer (POE) in proportion
Match into octagonal container middle level raw material；
Step 2：The outer layer raw material matched, middle level raw material, internal layer raw material are respectively fed into blender uniformly to be stirred
Mix；
Step 3：The outer layer raw material stirred, middle level raw material and internal layer raw material are respectively fed to the distribution in pelleter
Outer layer, middle level and the internal layer of device；Outer layer raw material is accounted among 20-30% gross weight ratio, middle level among the outer layer of the distributor
Middle level raw material accounts for the gross weight ratio that internal layer raw material among 30-45% gross weight ratio, internal layer accounts for 20-30%, pelleter setting work
Make temperature range for 180 DEG C -- start film-making work after 250 DEG C；
Step 4：Octagonal container mould is installed in the die region of shaping press, the heating zone of press is molded
Domain operating temperature control is between 190 DEG C -250 DEG C；
Step 5：The sheet material that pelleter is produced in step 3 is delivered to the heating region of shaping press and is heated to one
After fixed temperature, the die region of shaping press is delivered to, then the upward mould of lower mould of octagonal container mould closes up, upper mould
Stretching head press to the sheet material of heating, sheet material is pressed in lower mode cavity, realizes and stretched operation is carried out to sheet material, stretching time control
Scope is 0.2-0.4 seconds；
Step 6：The sheet material being pressed down touches side wall and the bottom of lower mode cavity, and complete in the presence of upper die drawing extension head
Into chamber wall and the crystallization operation of container bottom, the time control scope of crystallization operation is 0.15-0.25 seconds；Meanwhile, outside upper mould
The combination on edge on edge and lower mode cavity, makes the sheet material between it complete the shaping on edge on octagonal container；
Step 7：Cutting tool line is provided with upper mould, while edge is formed on container at step 6, cutting tool line is under
Die cut, constitutes the state separated with leftover bits by the finished product of octagonal container, completes the shaping of whole octagonal container
Journey, it is described Step 5: the time control scope of the whole shaping of step 6 and step 7 is 0.35-0.8 seconds.
Further, polypropylene accounts for 62-85% weight ratio in each layer raw material components in the step one；Described poly- second
Alkene accounts for 4-15% weight ratio；Described polyolefin elastomer (POE) accounts for 4-15% weight ratio；Described Masterbatch accounts for 4-
8% weight ratio.
Further, the sheet material of heating is combined with the mould cooled down in the step 5 and step 6, handed over by cold and hot
The mode changed makes sheet material realize fast cooling and shaping.
Further, the sheet thickness produced in the step 3 is controlled in 1.10-1.20mm；Set on described pelleter
There is cutter, cut off the flash of sheet material both sides after film-making using cutter.
Further, the octagonal container produced using methods described meets GB18006.1-2009 national standard.
The beneficial effects of the invention are as follows：Regulation and subsequent forming step of the present invention to the proportioning, operating temperature of raw material
In each operating time control all have in-depth study and improvement.
Each component is allocated and sends into the outer layer of distributor, middle level and internal layer in proportion in dispensing and film-making stage, raw material,
Pelleter regulates operating temperature, rational dispensing and its production work for being distributed in progress sheet material at rational temperature simultaneously,
The sheet thickness and weight of production meet the requirements.Then, presswork under sheet material feeding shaping press.It is molded each step behaviour
Make the control of time and be molded the control of press operating temperature, it is ensured that octagonal container reaches certain in forming process
Thickness and extensibility so that round and smooth at the flanging of the octagonal container side wall of shaping, will not produce crack, and contact cold
In hot alternate use condition, performance is stable.
On the one hand the control of each Step Time of forming process ensure that octagonal container plastotype in colding and heat succeed each other, another
Aspect can control process time, improve production efficiency.
The present invention compared with prior art, in raw material with when distribution proportion, pelleter, the work temperature for being molded press
Rational adjustment has all been done in control, the control for being molded the time of each step, the octagonal container that one-shot forming comes out, three layers of raw material
Associativity is good, and ensures that each layer raw material will not be obscured；Thickness is uniform, surface is smooth and knuckle of octagonal container side wall at not
Crack occurs, performance is stable during long-term use.
Brief description of the drawings
Fig. 1 is octagonal container finish produced by the invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
The present invention includes step one：Polypropylene (PP), polyethylene (PE), polyolefin elastomer (POE) and Masterbatch are pressed
Certain proportion matches into octagonal container outer layer raw material and internal layer raw material；By polypropylene (PP), polyethylene (PE) and polyolefin bullet
Property body (POE) matches into octagonal container middle level raw material by a certain percentage.Wherein, outer layer raw material, internal layer raw material and middle level raw material
The middle weight ratio for accounting for 62-85% containing polypropylene respectively；Polyethylene accounts for 4-15% weight ratio；Polyolefin elastomer (POE) is accounted for
4-15% weight ratio；Masterbatch accounts for 4-8% weight ratio (Masterbatch wherein, is free of in the raw material of middle level).
It can be seen that, the octagonal container produced using the method for the invention is made up of three layers of raw material.
Polypropylene (PP) and polyethylene (PE) are the compositions of conventional synthetic plastic.Polypropylene (PP) is nontoxic, odorless, tasteless,
Good moldability, its product surface good luster, it is easy to colour.Polyethylene (PE) is also odorless, nontoxic, and chemical stability is good.Polyene
Olefin elastomer (POE) is a kind of new thermoplastic elastomer (TPE), is conventional plastics toughening agent, with good thermoforming, modeling
Type is good.Masterbatch is a kind of good plastic colorant.
Step 2：The outer layer raw material matched, middle level raw material, internal layer raw material are respectively fed into blender uniformly to be stirred
Mix.Sufficiently stirring causes each raw material components to be evenly distributed, and the processing to follow-up sheet material plays place mat.
Step 3：The outer layer raw material stirred, middle level raw material and internal layer raw material are respectively fed to the distribution in pelleter
Outer layer, middle level and the internal layer of device.Outer layer raw material is accounted among 20-30% gross weight ratio, middle level among the outer layer of the distributor
Middle level raw material accounts for the gross weight ratio that internal layer raw material among 30-45% gross weight ratio, internal layer accounts for 20-30%.Pelleter sets work
Make temperature range to start film-making work after 180 DEG C -250 DEG C, due to the change of the reasons such as season, weather, pelleter work
Temperature is adjusted according to actual conditions.The sheet material for being carried out coming by pelleter processing department, then slowly it is sent to the collection of pelleter
At spool.The sheet thickness of production is controlled in 1.10-1.20mm.In transmit process, the both sides of pelleter are provided with cutter, film-making
The flash of sheet material both sides is cut off using cutter afterwards.
In this step, the sheet material of production is made up of three layers of raw material, and the associativity of three layers of raw material is good, and ensures that each layer is former
Material will not be obscured, and thickness is uniform.
Step 4：Octagonal container mould is installed in the die region of shaping press, the heating zone of press is molded
Domain operating temperature control is between 190 DEG C -250 DEG C.The guarantee that controls to of temperature heats sheet material and ensures that it is follow-up effective
Crystallization operation.
Step 5：The sheet material that pelleter is produced in step 3 is delivered to the heating region of shaping press and is heated to one
After fixed temperature, the die region of shaping press is delivered to, then the upward mould of lower mould of octagonal container mould closes up, upper mould
Stretching head press to the sheet material of heating, sheet material is pressed in lower mode cavity, realizes and stretched operation is carried out to sheet material.Stretching time is controlled
Scope is 0.2-0.4 seconds.
Step 6：The sheet material being pressed down touches side wall and the bottom of lower mode cavity, and complete in the presence of upper die drawing extension head
Into chamber wall and the crystallization operation of container bottom, the time control scope of crystallization operation is 0.15-0.25 seconds.Meanwhile, outside upper mould
The combination on edge on edge and lower mode cavity, makes the sheet material between it complete the shaping on edge on octagonal container.
The sheet material of heating is combined with the mould cooled down in step 5 and step 6, makes sheet material by way of cold and hot exchange
Realize fast cooling and shaping.
Step 7：Cutting tool line is provided with upper mould, while edge is formed on container at step 6, cutting tool line is under
Die cut, constitutes the state separated with leftover bits by the finished product of octagonal container, completes the shaping of whole octagonal container
Journey.Specific octagonal container finish is shown in Fig. 1.It is described Step 5: the time control model of the whole shaping of step 6 and step 7
Enclose for 0.35-0.8 seconds.
The octagonal container produced using method of the present invention, thickness is uniform, surface is smooth and octagonal container side
Be not in chap, cracking phenomena at the knuckle of wall, performance is stable during long-term use, and octagonal container finish meets
GB18006.1-2009 national standard.
Claims (5)
1. a kind of production method of octagonal container, it is characterised in that including
Step one：Polypropylene (PP), polyethylene (PE), polyolefin elastomer (POE) and Masterbatch are matched into anise in proportion
Describe device outer layer raw material and internal layer raw material；Polypropylene (PP), polyethylene (PE) and polyolefin elastomer (POE) are matched in proportion
Into octagonal container middle level raw material；
Step 2：The outer layer raw material matched, middle level raw material, internal layer raw material are respectively fed into blender uniformly to be stirred；
Step 3：The outer layer raw material stirred, middle level raw material and internal layer raw material are respectively fed to the outer of distributor in pelleter
Layer, middle level and internal layer；Middle level is former among outer layer raw material accounts for 20-30% gross weight ratio, middle level among the outer layer of the distributor
Material accounts for the gross weight ratio that internal layer raw material among 30-45% gross weight ratio, internal layer accounts for 20-30%, pelleter setting operating temperature
Scope is beginning film-making work after 180 DEG C -250 DEG C；
Step 4：Octagonal container mould is installed in the die region of shaping press, the heating region work of press is molded
Make temperature control between 190 DEG C -250 DEG C；
Step 5：The sheet material that pelleter is produced in step 3 is delivered to the heating region of shaping press and is heated to certain
After temperature, the die region of shaping press is delivered to, then the upward mould of lower mould of octagonal container mould closes up, the drawing of upper mould
Extension head presses to the sheet material of heating, and sheet material is pressed in lower mode cavity, realizes and carries out stretched operation, stretching time control range to sheet material
For 0.2-0.4 seconds；
Step 6：The sheet material being pressed down touches side wall and the bottom of lower mode cavity, and completes appearance in the presence of upper die drawing extension head
The crystallization operation of wall and container bottom, the time control scope of crystallization operation is 0.15-0.25 seconds；Meanwhile, upper mould outer with
The combination on edge on lower mode cavity, makes the sheet material between it complete the shaping on edge on octagonal container；
Step 7：Cutting tool line is provided with upper mould, while edge is formed on container at step 6, cutting tool line is along lower die cut
Cut, the finished product of octagonal container is constituted into the state separated with leftover bits, the forming process of whole octagonal container, institute is completed
State Step 5: the time control scope of the whole shaping of step 6 and step 7 is 0.35-0.8 seconds.
2. a kind of production method of octagonal container according to claim 1, it is characterised in that each layer in the step one
Polypropylene accounts for 62-85% weight ratio in raw material components；Described polyethylene accounts for 4-15% weight ratio；Described polyolefin bullet
Property body (POE) accounts for 4-15% weight ratio；Described Masterbatch accounts for 4-8% weight ratio.
3. the production method of a kind of octagonal container according to claim 1, it is characterised in that the step 5 and step
The sheet material of heating is combined with the mould cooled down in six, sheet material is realized fast cooling and shaping by way of cold and hot exchange.
4. the production method of a kind of octagonal container according to claim 1, it is characterised in that produced in the step 3
Sheet thickness control in 1.10-1.20mm；Described pelleter is provided with cutter, and cutter excision sheet material both sides are utilized after film-making
Flash.
5. the production method of a kind of octagonal container according to claim 1, it is characterised in that utilize methods described production
Octagonal container meet GB18006.1-2009 national standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510193932.7A CN104802432B (en) | 2015-04-20 | 2015-04-20 | A kind of production method of octagonal container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510193932.7A CN104802432B (en) | 2015-04-20 | 2015-04-20 | A kind of production method of octagonal container |
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| Publication Number | Publication Date |
|---|---|
| CN104802432A CN104802432A (en) | 2015-07-29 |
| CN104802432B true CN104802432B (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510193932.7A Active CN104802432B (en) | 2015-04-20 | 2015-04-20 | A kind of production method of octagonal container |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033023A (en) * | 2007-04-14 | 2007-09-12 | 李俊贤 | Steel pail with antiseptic plastic inner container and manufacturing method thereof |
| CN103658644A (en) * | 2013-11-30 | 2014-03-26 | 成都易态科技有限公司 | Isostatic pressing mold for manufacturing flake sintered body and assembly method of isostatic pressing mold |
| CN104417920A (en) * | 2013-09-06 | 2015-03-18 | 昭和电工包装株式会社 | Food container and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02178019A (en) * | 1988-12-28 | 1990-07-11 | Idemitsu Petrochem Co Ltd | Method and apparatus for manufacturing container |
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2015
- 2015-04-20 CN CN201510193932.7A patent/CN104802432B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033023A (en) * | 2007-04-14 | 2007-09-12 | 李俊贤 | Steel pail with antiseptic plastic inner container and manufacturing method thereof |
| CN104417920A (en) * | 2013-09-06 | 2015-03-18 | 昭和电工包装株式会社 | Food container and manufacturing method thereof |
| CN103658644A (en) * | 2013-11-30 | 2014-03-26 | 成都易态科技有限公司 | Isostatic pressing mold for manufacturing flake sintered body and assembly method of isostatic pressing mold |
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| Publication number | Publication date |
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| CN104802432A (en) | 2015-07-29 |
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Effective date of registration: 20191211 Address after: Room 1806, No. 425, Yishan Road, Xuhui District, Shanghai Patentee after: Riqing food (China) Investment Co., Ltd Address before: 314207, Zhejiang, Jiaxing Province, Pinghu Guang Chen Lu Road No. 1 on the north side of the bottom Patentee before: Jiaxing City Mu Tian plastic package material Co., Ltd |
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