CN110561727A - adhesive film continuous plastic suction forming process - Google Patents
adhesive film continuous plastic suction forming process Download PDFInfo
- Publication number
- CN110561727A CN110561727A CN201910901581.9A CN201910901581A CN110561727A CN 110561727 A CN110561727 A CN 110561727A CN 201910901581 A CN201910901581 A CN 201910901581A CN 110561727 A CN110561727 A CN 110561727A
- Authority
- CN
- China
- Prior art keywords
- plastic
- base material
- molding process
- product
- blister
- 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.)
- Pending
Links
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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/02—Combined thermoforming and manufacture of the preform
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of plastic molding processes, in particular to a plastic film continuous plastic molding process, which comprises the following steps: mixing the absorbent plastic with a curing agent to prepare modified absorbent plastic; automatically spraying modified plastic on the surface of the base material, wherein the plane part of the base material is sprayed for 1 time, and the end surface and the plane line type part are sprayed for 2-3 times; drying the base material sprayed with the glue by blowing; providing a base material cushion plate, wherein the length and the width of the base material cushion plate are both 6-10mm smaller than those of the base material; forming the plastic suction sheet and the base materials in a plastic suction manner, and positioning the base materials on a plastic suction machine; cooling and solidifying the product after the plastic suction molding into a plastic suction product, and demolding; the blister product is die cut into individual products. The invention effectively avoids the cracking problem of the blister product, avoids bubbling caused by high substrate humidity, effectively avoids the whitening of the blister sheet, thoroughly exhausts the air between the blister sheet and the substrate, firmly glues the blister sheet to the edge of the substrate, has high automation degree, improves the production efficiency and has good quality of the blister product.
Description
Technical Field
the invention relates to the technical field of plastic molding processes, in particular to a plastic film continuous plastic molding process.
background
A vacuum plastic-sucking shaping technology for making open-mouthed shell products by using thermoplastic plastic-sucking sheet includes such steps as cutting the plastic-sucking sheet into a certain size, heating for softening, sticking it on the contour surface of mould, cooling, shaping, trimming and trimming. The vacuum forming method is a thermoforming method which depends on vacuum force to stretch and deform the sheet, and the vacuum force is easy to realize, master and control, so that simple vacuum forming is the earliest and is the most widely applied thermoforming method at present. The traditional plastic molding process can not realize continuous plastic molding, has low automation degree and low production efficiency, has the problems of cracking, bubbling, whitening, infirm gluing and the like of the plastic products, and can not meet the requirement of modern production.
disclosure of Invention
The invention aims to solve the technical problem of providing a glue film continuous plastic-sucking molding process, which can continuously carry out plastic-sucking molding, effectively avoid the problems of cracking, bubbling, whitening, infirm gluing and the like of plastic-sucking products and improve the product quality.
In order to solve the technical problems, the invention adopts the following technical scheme:
a continuous plastic-sucking molding process for an adhesive film comprises the following steps:
S01: mixing the absorbent plastic with a curing agent to prepare a modified absorbent plastic, wherein the mass ratio of the absorbent plastic is as follows: curing agent 20:1, the plastic uptake adhesive is in a stirring state during preparation, the curing agent is added, and stirring is continued for 3-4 min;
S02: providing an automatic glue spraying device, automatically spraying the modified plastic absorbing material prepared in the step S01 on the surface of the substrate, wherein the planar part of the substrate is sprayed for 1 time, and the end surface and the planar line type need to be sprayed for 2-3 times;
S03: providing an automatic blowing device, and blowing and drying the base material sprayed with the glue, wherein the blowing distance is 1.5-2.0m, and the drying time is 20-60 min;
S04: providing a base material cushion plate, wherein the length and the width of the base material cushion plate are both 6-10mm smaller than those of the base material;
S05: providing a plastic uptake machine, carrying out plastic uptake molding on the plastic uptake sheets and the base materials, positioning the base materials on the plastic uptake machine, wherein the distance between two adjacent base materials is 60-80mm, and the distance between the base materials and the edge of a cavity of the plastic uptake machine is more than 80 mm;
S06: cooling and solidifying the product after the plastic suction molding into a plastic suction product, and demolding;
S07: and providing a numerical control machine tool, and punching and cutting the plastic suction product into single products.
Further, in step S01, the storage temperature of the plastic absorbent is 5-30 deg.C, and the shelf life is 6 months.
Further, in step S01, the prepared modified blister glue is stored in a sealed manner and used within 4 h.
Further, in step S01, the absorbent plastic is activated at 60-70 ℃.
further, in step S02, spraying glue is performed in an environment of 16-35 ℃.
Further, in step S05, the temperature of the plastic molding is 120-130 ℃.
further, in step S05, the blister sheet is subjected to a preheating process for 30 to 50 seconds before blister forming.
further, in step S05, the time for evacuation is 7-9S and the time for pressurization is 40-70S.
Further, in step S05, the positive pressure is set to 3.8-4.2bar and the negative pressure is set to 0.7-0.8 bar.
The invention has the beneficial effects that:
1. The cracking problem of the blister product is effectively avoided;
2. Bubbling caused by high substrate humidity is avoided;
3. the plastic uptake sheet is effectively prevented from being whitened;
4. The air between the blister sheet and the substrate is completely evacuated and the blister sheet is glued firmly to the edge of the substrate.
5. The plastic molding can be continuously performed, the automation degree is high, the production efficiency is high, and the product quality is good.
Drawings
FIG. 1 is a flow diagram of the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1, the invention provides a continuous plastic molding process for an adhesive film, which comprises the following steps:
S01: mixing the absorbent plastic with a curing agent to prepare a modified absorbent plastic, wherein the mass ratio of the absorbent plastic to the curing agent is 20:1, the absorbent plastic is in a stirring state during preparation, the curing agent is added, and the stirring is continued for 3-4 min;
S02: providing an automatic glue spraying device, and automatically spraying the modified plastic absorbing material prepared in the step S01 on the surface of the substrate, wherein the planar part of the substrate is sprayed for 1 time, and the linear parts of the end surface and the plane are sprayed for 2-3 times; the end face and the plane line type part are easy to crack, and the cracking problem of the product is effectively avoided by multiple times of spraying.
S03: providing an automatic blowing device, and blowing and drying the base material sprayed with the glue, wherein the blowing distance is 1.5-2.0m, and the drying time is 20-60 min; the blowing drying function is to avoid bubbling caused by high substrate humidity, and the product quality is improved.
s04: the base material backing plate is provided, the length and the width of the base material backing plate are both 6-10mm smaller than those of the base material, and the thickness of the base material backing plate is 18-24mm, so that the air between the plastic suction sheet and the base material is thoroughly pumped, the effect that the plastic suction sheet is firmly glued to the edge of the base material is achieved, and the plastic suction sheet is effectively prevented from being whitened.
s05: providing a plastic uptake machine, carrying out plastic uptake molding on the plastic uptake sheets and the base materials, positioning the base materials on the plastic uptake machine, wherein the distance between two adjacent base materials is 60-80mm, and the distance between the base materials and the edge of a cavity of the plastic uptake machine is more than 80 mm; so as to reduce the air flowing resistance and ensure that the air between the plastic sheet and the base material is completely pumped out, and the plastic sheet is firmly glued to the edge of the base material.
S06: cooling and solidifying the product after the plastic suction molding into a plastic suction product, and demolding;
S07: and providing a numerical control machine tool, and punching and cutting the plastic suction product into single products. Generally, a plastic uptake machine is provided with a plurality of cavities, a plurality of products can be produced through one-time plastic uptake molding operation, and the plurality of products are connected with each other through plastic uptake sheets and need to be cut into a single product.
in practice, the plastic sheet can be made of various materials, such as PET (polyethylene terephthalate), PVC (polyvinyl chloride), PS (polystyrene), PP (polypropylene), etc., preferably PVC.
in this embodiment, in step S01, the storage temperature of the plastic absorption material is 5-30 ℃, the shelf life is 6 months, the plastic absorption material flocculates in the environment below 5 ℃, and the barrel containing the plastic absorption material should not be placed directly on the ground, but should be placed on a wooden bracket to avoid the plastic absorption material flocculate.
In this embodiment, in step S01, the prepared modified blister glue is stored in a sealed manner and used within 4 hours, so that the bonding strength is high.
in this embodiment, in step S01, the absorbent plastic is activated by heating at 60-70 ℃ to obtain high adhesive strength, good sealing performance, and cold and hot resistance.
In this embodiment, in step S02, spraying is performed at 16 to 35 ℃ to increase the viscosity.
in this embodiment, in step S05, the temperature of the blister forming is 120-130 ℃, and when the blister sheet is PVC, the temperature of the ordinary PVC should be slightly higher than that of the high-gloss PVC, and the temperature of the high-gloss PVC should be slightly lower than that of the high-gloss PVC, so as to avoid the high-gloss PVC from being lost due to the high temperature.
In this embodiment, in step S05, the blister sheet is subjected to preheating treatment for 30 to 50 seconds before blister forming. The plastic suction sheets have different colors, the preheating time is different, the light color is properly lengthened, and the dark color is properly shortened; the thick blister sheet should be lengthened and the thin blister sheet should be shortened appropriately.
in this embodiment, in step S05, the vacuuming time is 7-9S, and the pressing time is 40-70S, so that the discoloration of the blister sheet can be reduced or avoided, and the product quality can be improved.
In this embodiment, in step S05, the positive pressure is set to 3.8 to 4.2bar, the negative pressure is set to 0.7 to 0.8bar, and the time for reaching the set pressure is not too long, so as to ensure that the blister sheet and the substrate are fast adhered together when the end surface of the substrate reaches above the activation temperature, and the blister sheet on the substrate is not excessively stretched, thereby reducing or avoiding discoloration of the blister sheet, and improving the quality of the product.
All the technical features in the embodiment can be freely combined according to actual needs.
the above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Claims (9)
1. A continuous plastic-sucking molding process for an adhesive film is characterized by comprising the following steps:
S01: mixing the absorbent plastic with a curing agent to prepare a modified absorbent plastic, wherein the mass ratio of the absorbent plastic is as follows: curing agent 20:1, the plastic uptake adhesive is in a stirring state during preparation, the curing agent is added, and stirring is continued for 3-4 min;
S02: providing an automatic glue spraying device, automatically spraying the modified plastic absorbing material prepared in the step S01 on the surface of the substrate, wherein the planar part of the substrate is sprayed for 1 time, and the end surface and the planar line type need to be sprayed for 2-3 times;
S03: providing an automatic blowing device, and blowing and drying the base material sprayed with the glue, wherein the blowing distance is 1.5-2.0m, and the drying time is 20-60 min;
S04: providing a base material cushion plate, wherein the length and the width of the base material cushion plate are both 6-10mm smaller than those of the base material;
S05: providing a plastic uptake machine, carrying out plastic uptake molding on the plastic uptake sheets and the base materials, positioning the base materials on the plastic uptake machine, wherein the distance between two adjacent base materials is 60-80mm, and the distance between the base materials and the edge of a cavity of the plastic uptake machine is more than 80 mm;
s06: cooling and solidifying the product after the plastic suction molding into a plastic suction product, and demolding;
S07: and providing a numerical control machine tool, and punching and cutting the plastic suction product into single products.
2. The continuous plastic molding process of claim 1, wherein: in step S01, the storage temperature of the plastic is 5-30 deg.C, and the shelf life is 6 months.
3. the continuous plastic molding process of claim 1, wherein: in step S01, the prepared modified plastic uptake glue is stored in a sealed mode and used within 4 h.
4. The continuous plastic molding process of claim 1, wherein: in step S01, the absorbent plastic is activated at 60-70 deg.C.
5. The continuous plastic molding process of claim 1, wherein: in step S02, spraying glue is carried out in the environment of 16-35 ℃.
6. the continuous plastic molding process of claim 1, wherein: in step S05, the temperature of the plastic molding is 120-130 ℃.
7. The continuous plastic molding process of claim 1, wherein: in step S05, the blister sheet is subjected to a preheating process for 30 to 50 seconds before blister forming.
8. The continuous plastic molding process of claim 1, wherein: in step S05, the evacuation time is 7-9S and the pressurization time is 40-70S.
9. The continuous plastic molding process of claim 1, wherein: in step S05, the positive pressure is set to 3.8-4.2bar and the negative pressure is set to 0.7-0.8 bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901581.9A CN110561727A (en) | 2019-09-23 | 2019-09-23 | adhesive film continuous plastic suction forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901581.9A CN110561727A (en) | 2019-09-23 | 2019-09-23 | adhesive film continuous plastic suction forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110561727A true CN110561727A (en) | 2019-12-13 |
Family
ID=68781773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910901581.9A Pending CN110561727A (en) | 2019-09-23 | 2019-09-23 | adhesive film continuous plastic suction forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110561727A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920032A (en) * | 2019-12-25 | 2020-03-27 | 雷誉(上海)包装制品有限公司 | Plastic suction forming process |
| CN111489869A (en) * | 2020-04-23 | 2020-08-04 | 龙岩高格微扣科技有限公司 | Novel lithium battery insulating material manufacturing process and insulating material |
| CN113088015A (en) * | 2021-04-06 | 2021-07-09 | 惠州市优品新材料有限公司 | Anti-aging PVC vacuum plastic film and film pressing process thereof |
| CN113263559A (en) * | 2021-05-24 | 2021-08-17 | 广东玛格家居有限公司 | Method for manufacturing PET (polyethylene terephthalate) high-gloss decorative surface product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200112A (en) * | 2006-12-11 | 2008-06-18 | 全成都 | Method of vacuum adsorbed PVC film on non timber products |
| CN102350888A (en) * | 2011-09-06 | 2012-02-15 | 深圳市伟超印刷有限公司 | Printing, positioning and plastic sucking integrated process |
-
2019
- 2019-09-23 CN CN201910901581.9A patent/CN110561727A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200112A (en) * | 2006-12-11 | 2008-06-18 | 全成都 | Method of vacuum adsorbed PVC film on non timber products |
| CN102350888A (en) * | 2011-09-06 | 2012-02-15 | 深圳市伟超印刷有限公司 | Printing, positioning and plastic sucking integrated process |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920032A (en) * | 2019-12-25 | 2020-03-27 | 雷誉(上海)包装制品有限公司 | Plastic suction forming process |
| CN110920032B (en) * | 2019-12-25 | 2021-12-03 | 佛山市顺德区铭宏塑料制品有限公司 | Plastic suction forming process |
| CN111489869A (en) * | 2020-04-23 | 2020-08-04 | 龙岩高格微扣科技有限公司 | Novel lithium battery insulating material manufacturing process and insulating material |
| CN113088015A (en) * | 2021-04-06 | 2021-07-09 | 惠州市优品新材料有限公司 | Anti-aging PVC vacuum plastic film and film pressing process thereof |
| CN113263559A (en) * | 2021-05-24 | 2021-08-17 | 广东玛格家居有限公司 | Method for manufacturing PET (polyethylene terephthalate) high-gloss decorative surface product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110561727A (en) | adhesive film continuous plastic suction forming process | |
| CN105768345B (en) | A kind of mould is interior to be integrally formed sole and its manufacture craft | |
| CN109177215A (en) | A kind of plated sheets injection molding process and products thereof | |
| CN106235513B (en) | Outsole, method for attaching outsole to midsole and manufactured sole | |
| CN111113497B (en) | Cutting method of double-sided adhesive tape without base material | |
| CN111086199B (en) | Method and device for laminating paper pulp molded product | |
| CN112724861A (en) | Production method of TPU polyurethane and mucosa combined finished product | |
| TW201544402A (en) | Adhesive film application method for curved lens and device thereof | |
| CN110920032B (en) | Plastic suction forming process | |
| JP4761376B2 (en) | Synthetic resin molded product package manufacturing method | |
| CN205695996U (en) | One-body molded sole in a kind of mould | |
| RU2714057C1 (en) | Method of forming optical complex products | |
| JP5341127B2 (en) | Manufacturing method for products with skin material | |
| JPS6282018A (en) | Thermoforming method for thermoplastic resin molded article | |
| CN110587961A (en) | Heating type adhesive film cutting process | |
| CN112406074A (en) | Back adhesive laminating process of curved surface product | |
| CN110480929A (en) | A kind of plastics molding process | |
| CN218985502U (en) | Injection molding and back adhesive integrated device | |
| CN104494039A (en) | In-mold injection molding method for air conditioner panel | |
| JPS6381021A (en) | Manufacture of thermoplastic synthetic resin laminated molded product | |
| CN103395204A (en) | Full-automatic vacuum decoration technology of injection part | |
| CN211250415U (en) | Bamboo-plastic plywood with seal | |
| CN213227908U (en) | Plastic sheet capable of being sucked and molded | |
| CN106193516A (en) | Wood-plastic board and preparation method thereof | |
| JPH0655424B2 (en) | Labeling method for synthetic resin blow molding products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191213 |
|
| RJ01 | Rejection of invention patent application after publication |