CN107877824A - A kind of plastic knitting bar preparation method - Google Patents
A kind of plastic knitting bar preparation method Download PDFInfo
- Publication number
- CN107877824A CN107877824A CN201711165997.6A CN201711165997A CN107877824A CN 107877824 A CN107877824 A CN 107877824A CN 201711165997 A CN201711165997 A CN 201711165997A CN 107877824 A CN107877824 A CN 107877824A
- Authority
- CN
- China
- Prior art keywords
- plastic
- knitting bar
- bar
- plastic knitting
- extrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
Abstract
The present invention relates to plastic products technology field, and in particular to a kind of plastic knitting bar preparation method, specific steps include（1）Plastic grain is put into the hopper of extruder, extruder would be heated to 220 240 DEG C of the plastic grain extrusion plastic bar by way of spiral squeezing；（2）Plastic strip is used and is water-cooled to normal temperature；（3）The plastic strip that will be cooled to normal temperature is heated to 135 140 degree Celsius；（4）Plastic strip after heating is stretched by traction and obtains plastic knitting bar with roller die mould；（5）Product packaging is put in storage after the assay was approved.The present invention reduces production process, makes whole production technology relatively simple, reduces production cost, and the plastic knitting bar made is uniformly attractive in appearance, also make the appearance of relative product more aesthetically pleasing, and provide a kind of plastic knitting bar for meeting environmental protection, disposable or recovery.
Description
Technical field
The present invention relates to plastic products technology field, and in particular to a kind of plastic knitting bar preparation method.
Background technology
Woven bag is applied to daily life, industrial production is packed.Woven bag is formed by some plastic knitting bar braidings.
It is complicated in the production process of plastic knitting bar, including the outfit of raw material, melting, casting film-forming, sub-wire, stretching, sizing, receive silk etc.
Process, wherein sub-wire are stretched as committed step with heating.Sub-wire directly affects the thickness of flat filament, width with heating two processes of stretching
The quality such as degree, width, the thickness uniformity coefficient of plastic knitting bar directly affect the outward appearance of woven bag, or even influence the matter of woven bag
Amount.Therefore it is badly in need of being improved the preparation method of existing plastic knitting bar.
The content of the invention
In order to solve the above problems, the invention provides a kind of plastic knitting bar preparation method, concrete technical scheme are as follows：
A kind of plastic knitting bar preparation method comprises the following steps：
（1）Plastic grain is put into the hopper of extruder, the plastic grain that extruder would be heated to 220-240 DEG C passes through spiral
The mode extrusion plastic bar of extrusion；
（2）Plastic strip is used and is water-cooled to normal temperature；
（3）The plastic strip that will be cooled to normal temperature is heated to 135-140 degree Celsius；
（4）Plastic strip after heating is stretched by traction and obtains plastic knitting bar with roller die mould；
（5）Product packaging is put in storage after the assay was approved.
Further, the step（1）The production method of middle plastic grain is：By percentage by weight be 75-90% poly- third
Alkene particle and 6-12% calcium carbonate granule are mixed, then the particle that polypropylene and calcium carbonate are mixed is granulated.
Further, the step（1）In be additionally included in plastic grain add mass fraction be 4-6% polypropylene color
It is female.
Further, the step（1）The method of middle extruder extrusion plastic bar is：Reducing motor drives through belt transmission to be subtracted
Fast case, in the effect through shaft coupling, drive twin-screw to rotate, plastic grain is added to material extrusion case, passes through double spiral shells of rotation
Bar is conveyed, extruded, and is discharged from extruded tube, and heater heating of plastic particle is installed in extruded tube.
Further, the step（3）In will be cooled to the plastic strip of normal temperature and pass through the electrical heating of 4-5 minutes to 135- Celsius
140 degree.
Further, the step（5）In packaging before also include reaching required length to the cut-out of plastic knitting bar, it is specific logical
Length needed for infrared sensor sensing is crossed, and controls dip mold to push, so that the cutoff tool on dip mold is to plastics
The cut-out of length needed for woven stripe progress.
Beneficial effects of the present invention are：
The invention provides a kind of plastic knitting bar preparation method, reduce production process, make whole production technology relatively simple,
Production cost is reduced, and the plastic knitting bar made is uniformly attractive in appearance, also makes the appearance of relative product more aesthetically pleasing, and
Provide a kind of plastic knitting bar for meeting environmental protection, disposable or recovery.
Embodiment
In order to be better understood from the present invention, with reference to specific embodiment, the invention will be further described：
Embodiment 1：
A kind of plastic knitting bar preparation method comprises the following steps：
（1）Plastic grain is put into the hopper of extruder, the plastic grain that extruder would be heated to 220 DEG C passes through spiral squeezing
Mode extrusion plastic bar；The production method of wherein plastic grain is：By the PP GRANULES and 8% that percentage by weight is 88%
Calcium carbonate granule mixed, then the particle that polypropylene and calcium carbonate are mixed is granulated, and in plastic grain plus
Enter the polypropylene colorant that mass fraction is 4%.Wherein, the method for extruder extrusion plastic bar is：Reducing motor is through belt transmission
Reduction box is driven, in the effect through shaft coupling, drives twin-screw to rotate, plastic grain is added to material extrusion case, passes through rotation
Twin-screw conveyed, extruded, from extruded tube discharge, in extruded tube install heater heating of plastic particle.
（2）Plastic strip is used and is water-cooled to normal temperature.
（3）The plastic strip of normal temperature be will be cooled to by the electrical heating of 4 minutes to 135 degree Celsius.
（4）Plastic strip after heating is stretched by traction and obtains plastic knitting bar with roller die mould；
（5）To plastic knitting bar cut-out reach required length, especially by infrared sensor sense needed for length, and control push
Mould pushes, so that cut-out of the cutoff tool on dip mold to length needed for the progress of plastic knitting bar.
（6）Product packaging is put in storage after the assay was approved.
Embodiment 2：
A kind of plastic knitting bar preparation method comprises the following steps：
（1）Plastic grain is put into the hopper of extruder, the plastic grain that extruder would be heated to 240 DEG C passes through spiral squeezing
Mode extrusion plastic bar；The production method of wherein plastic grain is：By the PP GRANULES and 6% that percentage by weight is 90%
Calcium carbonate granule mixed, then the particle that polypropylene and calcium carbonate are mixed is granulated, and in plastic grain plus
Enter the polypropylene colorant that mass fraction is 4%.Wherein, the method for extruder extrusion plastic bar is：Reducing motor is through belt transmission
Reduction box is driven, in the effect through shaft coupling, drives twin-screw to rotate, plastic grain is added to material extrusion case, passes through rotation
Twin-screw conveyed, extruded, from extruded tube discharge, in extruded tube install heater heating of plastic particle.
（2）Plastic strip is used and is water-cooled to normal temperature.
（3）The plastic strip of normal temperature be will be cooled to by the electrical heating of 5 minutes to 140 degree Celsius.
（4）Plastic strip after heating is stretched by traction and obtains plastic knitting bar with roller die mould；
（5）To plastic knitting bar cut-out reach required length, especially by infrared sensor sense needed for length, and control push
Mould pushes, so that cut-out of the cutoff tool on dip mold to length needed for the progress of plastic knitting bar.
（6）Product packaging is put in storage after the assay was approved.
Embodiment 3：
A kind of plastic knitting bar preparation method comprises the following steps：
（1）Plastic grain is put into the hopper of extruder, the plastic grain that extruder would be heated to 230 DEG C passes through spiral squeezing
Mode extrusion plastic bar；The production method of wherein plastic grain is：By the PP GRANULES and 6% that percentage by weight is 90%
Calcium carbonate granule mixed, then the particle that polypropylene and calcium carbonate are mixed is granulated, and in plastic grain plus
Enter the polypropylene colorant that mass fraction is 4%.Wherein, the method for extruder extrusion plastic bar is：Reducing motor is through belt transmission
Reduction box is driven, in the effect through shaft coupling, drives twin-screw to rotate, plastic grain is added to material extrusion case, passes through rotation
Twin-screw conveyed, extruded, from extruded tube discharge, in extruded tube install heater heating of plastic particle.
（2）Plastic strip is used and is water-cooled to normal temperature.
（3）The plastic strip of normal temperature be will be cooled to by the electrical heating of 4.5 minutes to 138 degree Celsius.
（4）Plastic strip after heating is stretched by traction and obtains plastic knitting bar with roller die mould；
（5）To plastic knitting bar cut-out reach required length, especially by infrared sensor sense needed for length, and control push
Mould pushes, so that cut-out of the cutoff tool on dip mold to length needed for the progress of plastic knitting bar.
（6）Product packaging is put in storage after the assay was approved.
The present invention is not limited to above-described embodiment, the foregoing is only the preferable case study on implementation of the present invention
, it is not intended to limit the invention, any modification for being made within the spirit and principles of the invention, equivalent substitution and changes
Enter, should be included in the scope of the protection.
Claims (6)
- A kind of 1. plastic knitting bar preparation method, it is characterised in that：Comprise the following steps：（1）Plastic grain is put into the hopper of extruder, the plastic grain that extruder would be heated to 220-240 DEG C passes through spiral The mode extrusion plastic bar of extrusion；（2）Plastic strip is used and is water-cooled to normal temperature；（3）The plastic strip that will be cooled to normal temperature is heated to 135-140 degree Celsius；（4）Plastic strip after heating is stretched by traction and obtains plastic knitting bar with roller die mould；（5）Product packaging is put in storage after the assay was approved.
- A kind of 2. plastic knitting bar preparation method according to claim 1, it is characterised in that：The step（1）Middle plastics The production method of particle is：PP GRANULES and 6-12% calcium carbonate granule that percentage by weight is 75-90% are mixed Close, then the particle that polypropylene and calcium carbonate are mixed is granulated.
- A kind of 3. plastic knitting bar preparation method according to claim 1, it is characterised in that：The step（1）In also wrap Include the polypropylene colorant for adding that mass fraction is 4-6% in plastic grain.
- A kind of 4. plastic knitting bar preparation method according to claim 1, it is characterised in that：The step（1）Middle extrusion The method of machine extrusion plastic bar is：Reducing motor drives reduction box through belt transmission, in the effect through shaft coupling, drives twin-screw Rotate, plastic grain is added to material extrusion case, is conveyed, extruded by the twin-screw of rotation, discharged from extruded tube, squeezed Go out installation heater heating of plastic particle on cylinder.
- A kind of 5. plastic knitting bar preparation method according to claim 1, it is characterised in that：The step（3）In will be cold But the electrical heating of 4-5 minutes to 135-140 degree Celsius is passed through to the plastic strip of normal temperature.
- A kind of 6. plastic knitting bar preparation method according to claim 1, it is characterised in that：The step（5）In bag Also include cutting off plastic knitting bar before dress reaching required length, especially by infrared sensor sense needed for length, and control Dip mold pushes, so that cut-out of the cutoff tool on dip mold to length needed for the progress of plastic knitting bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711165997.6A CN107877824A (en) | 2017-11-21 | 2017-11-21 | A kind of plastic knitting bar preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711165997.6A CN107877824A (en) | 2017-11-21 | 2017-11-21 | A kind of plastic knitting bar preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107877824A true CN107877824A (en) | 2018-04-06 |
Family
ID=61778317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711165997.6A Withdrawn CN107877824A (en) | 2017-11-21 | 2017-11-21 | A kind of plastic knitting bar preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107877824A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1680473A (en) * | 2004-04-07 | 2005-10-12 | 程前珍 | Fixed plastic strip and production thereof |
| CN101992533A (en) * | 2009-08-10 | 2011-03-30 | 周兆军 | Weaving strip producing method and equipment thereof |
| CN104552858A (en) * | 2013-10-22 | 2015-04-29 | 湖州市千金宝云机械铸件有限公司 | Method for producing plastic strip |
-
2017
- 2017-11-21 CN CN201711165997.6A patent/CN107877824A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1680473A (en) * | 2004-04-07 | 2005-10-12 | 程前珍 | Fixed plastic strip and production thereof |
| CN101992533A (en) * | 2009-08-10 | 2011-03-30 | 周兆军 | Weaving strip producing method and equipment thereof |
| CN104552858A (en) * | 2013-10-22 | 2015-04-29 | 湖州市千金宝云机械铸件有限公司 | Method for producing plastic strip |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180406 |