CN105946252A - Honeycomb-shaped fabric composite thermoplastic sheet and machining method for molding case shell of trolley case through compression molding - Google Patents

Honeycomb-shaped fabric composite thermoplastic sheet and machining method for molding case shell of trolley case through compression molding Download PDF

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Publication number
CN105946252A
CN105946252A CN201610348270.0A CN201610348270A CN105946252A CN 105946252 A CN105946252 A CN 105946252A CN 201610348270 A CN201610348270 A CN 201610348270A CN 105946252 A CN105946252 A CN 105946252A
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China
Prior art keywords
composite sheet
fabric
sheet material
thermoplastic
sheet
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CN201610348270.0A
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Chinese (zh)
Inventor
阮汝平
蒋丽莉
宗雪
张溯
范劲松
钟治国
丁祥霞
范丽娟
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Shanghai Runmi Technology Co Ltd
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Shanghai Runmi Technology Co Ltd
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Priority to CN201610348270.0A priority Critical patent/CN105946252A/en
Publication of CN105946252A publication Critical patent/CN105946252A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/40Shaping or impregnating by compression not applied
    • B29C70/50Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/504Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a honeycomb-shaped fabric composite thermoplastic sheet and a machining method for molding a case shell of a trolley case through compression molding, and relates to the technical field of production of trolley cases. The machining method comprises the following three steps: machining of a honey-shaped fabric: yarns are treated in a warping procedure, and are woven as the honey-shaped fabric; and finally, the honey-shaped fabric is shaped and coiled by a hot air type oven; machining of a composite sheet: the shaped honey-shaped fabric and a molten sheet extruded by a screw extruder are extruded by two rollers to form an embedded composite sheet for cooling and coiling; and then, the composite sheet and the extruded molten sheet are extruded and bonded by two rollers again to form a sandwich-structured composite sheet; and molding of the case shell: the sandwich-structured composite sheet is molded by hot pressing through a mold to prepare the case shell of the trolley case. The machining method has the following beneficial effects: the honeycomb-shaped fabric and the thermoplastic sheet are compounded by hot pressing to form the sandwich thermoplastic composite sheet structure; and the case shell of the trolley case is prepared through the composite sheet, so that the trolley case is high in strength and not easy to crack.

Description

Cellular fabric composite thermoplastic sheet material and compression molding draw-bar box case shell processing method
Technical field
The present invention relates to draw-bar box production technical field, be specifically related to cellular fabric composite thermoplastic Sheet material and compression molding draw-bar box case shell processing method.
Background technology
Quickening and the continuous transition of mode of transportation, the trip of people along with Working Life rhythm Increasing, increasing business people selects hard draw-bar box as trip instrument.Pull bar The most modal problem of case is that casing is overweight, inconvenient to carry, and makes for a long time With and delivery during high intensity extruding cause casing cracking, article be scattered, affect draw-bar box Property easy to use.
The material of hard draw-bar box case shell be mainly Merlon (PC), acrylonitrile-butadiene- Styrol copolymer (ABS), polypropylene (PP) etc..Draw-bar box in the market is the most not The lightweight of disconnected trend, PC, ABS, PP material of lightweight is widely applied, but material Loss of weight along with the decline of intensity, cause light-weighted draw-bar box all to there is easy to crack asking Topic, is difficult to have light weight and high-strength demand concurrently.
Common Enhancement Method mainly uses fiber cloth to be combined, multi-layer sheet lamination thickeies, adds Add inorganic particulate method etc..Patent CN105086360A discloses a kind of elder generation with epoxy resin to carbon Fiber cloth carries out pre-preg process, the rear reality being prepared high-strength compound sheet material by multi hot press molding Example.But the method exists two subject matters: first, carbon fiber quality weight and price are high; Secondly, molding for epoxy resin draw-bar box case shell long processing time, efficiency is low.The most heat cured Epoxy resin, the shaping efficiency of thermoplastic resin is higher, but thermoplastic resin matrix's viscosity is general All over the highest, causing reinforcing fiber to be difficult to be sufficiently impregnated with, interface bond strength is low.Patent CN103507278A discloses a kind of with thermoplastic polyurethane solution impregnation glass-fiber-fabric, and uses The hot-forming example preparing composite sheet.There are two problems in the method: first, solvent method Dipping increases equipment investment, and the later stage processes complexity, relatively costly;Secondly, glass-fiber-fabric is typically adopted With uniaxial tension, reinforced effects is the best.In order to improve intensity and the working (machining) efficiency of case shell, simultaneously Reinforcing fiber and the adhesion of matrix sheet material, the invention provides a kind of with high-strength cellular fabric Composite thermoplastic sheets, prepares the production and processing method of draw-bar box case shell.
Summary of the invention
Present invention aims to defect and the deficiency of prior art, it is provided that a kind of design is closed Reason cellular fabric composite thermoplastic sheet material and compression molding draw-bar box case shell processing method, it with Cellular fabric is reinforcing material, and carries out hot pressing with thermoplastic sheets and be combined, thus forms three Mingzhi's thermoplastic composite sheet material structure, and this composite sheet is prepared as by moulding shaping process Draw-bar box case shell, makes draw-bar box intensity high, the most easy to crack.
In order to solve the problem existing for background technology, the technical solution used in the present invention is: it Comprise three below step: cellular fabric is processed: first by the filament yarn with certain twist Carry out warping process process, on tricot machine, be then made into cellular fabric, after through hot air type Baking oven sizing rolling;Composite sheet is processed: by the cellular fabric after sizing and screw extruder The molten sheet material of extrusion extrudes through two rollers, forms embedded composite sheet, and cools down rolling, Then the molten sheet material of the composite sheet of rolling with extrusion is fitted through two roller extruding again, make Cellular fabric is wrapped up by two layers of thermoplastic sheet material, forms sandwich structure composite sheet;Case shell Processing and forming: under uniform temperature, pressure condition, passes through mould by sandwich structure composite sheet Tool carries out hot-forming, prepares draw-bar box case shell.
Further, the described cellular fabric course of processing is as follows: by the length with certain twist After gauze line carries out warping process process, tricot machine is made into cellular fabric, after be fixed on On needle plate and slowly move regulation fabric width to, make mesh form regular hexagon structure, dry through hot air type Case carries out heat-shaping to it, rear rolling of having shaped;Described thickness of yarn is 70~800D, The twist is 150~250 sth. made by twisting/10cm;Described yarn is ultrahigh molecular weight polyethylene yarn, carbon fibre Dimension, polypropylene, chinlon, terylene, aramid fiber;Described cellular fabric processing temperature is 15~25 DEG C, The relative humidity of processing environment is 50%~80%;The setting temperature of described cellular fabric is 100~200 DEG C;Described cellular Fabric mesh is hexagonal structure;Described cellular fabric Fabric width is 0.8~1.5m, and grammes per square metre is 60~200g/m2.
Further, the described composite sheet course of processing is as follows: carried out by thermoplastic resin particle After vacuum drying treatment, it is extruded into molten sheet material through screw extruder, simultaneously by after sizing Cellular fabric is imported by deflector roll, forms embedded composite sheet after pressure roller extrudes, and cold But rolling, then extrudes through two rollers again by the molten sheet material of the composite sheet of rolling with extrusion Laminating, forms sandwich structure composite sheet;Described thermoplastic resin particle be polypropylene (PP), Merlon (PC), acrylonitrile-butadiene-styrene copolymer (ABS) particle, most preferably For COPP particle;Described thermoplastic resin particle dried temperature is 80~150 DEG C, Time is 8~15h, and dried particle water content is less than 2%;The die head temperature of described screw extruder Degree is 180~250 DEG C, and die head thickness is 0.3~2.0mm;The rotary speed of described deflector roll is 1.0~8.0rpm, temperature is 20~50 DEG C, and the temperature of pressure roller is 30~180 DEG C, and rotary speed is 1.0~8.0rpm;The manufacturing and processing equipment of described composite sheet, mainly by mop roller one, fabric Embed sheet material, screw extruder, molten sheet material, deflector roll, pressure roller, composite sheet, Tobe Roller two, cutting device, packing device are constituted;Described sandwich structure composite sheet includes thermoplastic Property sheet material one, cellular fabric, thermoplastic sheets two;Thermoplastic sheets one and thermoplastic sheets Cellular fabric is clipped between two.
Further, the described case casing forming course of processing is as follows: by sandwich structure composite sheet Preheat through baking oven, send in the lower mold of thermoforming press, under uniform temperature, pressure condition, Mold is pressed therewith, upper/lower die is cooled down, take out the draw-bar box case shell after molding; The preheating temperature of described sandwich structure composite sheet is 130~250 DEG C, and preheating time is 5~10s;The upper/lower die of described heat pressing forming machines needs to preheat before sheet material is sent into, preheating It it is 130~250 DEG C to temperature;Described sandwich structure composite sheet compaction pressure in a mold Being 5~20MPa, pressing the time is 3~5s;The chilling temperature of described upper/lower die is 50~80 DEG C.
Present invention have the beneficial effect that it with cellular fabric as reinforcing material, and and thermal plasticity slice Material carries out hot pressing and is combined, thus forms sandwich thermoplastic composite sheet material structure, and this is combined Sheet material is prepared as draw-bar box case shell by moulding shaping process, makes draw-bar box intensity height, is difficult to out Split.
Accompanying drawing explanation
Fig. 1 is the manufacturing and processing equipment figure of the composite sheet of the present invention;
Fig. 2 is the sectional view of the sandwich structure composite sheet of the present invention;
Fig. 3 is each layer cross section axonometric chart of the sandwich composite sheet of the present invention.
Description of reference numerals: mop roller 1, fabric embed sheet material 2, screw extruder 3, Molten sheet material 4, deflector roll 5, pressure roller 6, composite sheet 7, mop roller 28, cutting device 9, packing device composition 10, thermoplastic sheets 1, cellular fabric 12, thermal plasticity slice Material 2 13, sandwich structure composite sheet 14.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is further illustrated.
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with The drawings and the specific embodiments, are further elaborated to the present invention.Should be appreciated that this Detailed description of the invention described by place only in order to explain the present invention, is not intended to limit the present invention.
This detailed description of the invention adopts the following technical scheme that it comprises three below step: honeycomb The processing of shape fabric, composite sheet processing, the processing of case casing forming.
Further, the described cellular fabric course of processing is as follows: by the length with certain twist After gauze line carries out warping process process, tricot machine is made into cellular fabric 12, solid afterwards It is scheduled on needle plate and slowly moves regulation fabric width to, making mesh form regular hexagon structure, through hot blast Formula baking oven carries out heat-shaping to it, rear rolling of having shaped;Described thickness of yarn is 200D, The twist is 150 sth. made by twisting/10cm;Described yarn be ultrahigh molecular weight polyethylene yarn, carbon fiber, Polypropylene, chinlon, terylene, aramid fiber;Described cellular fabric 12 processing temperature is 20 DEG C, adds The relative humidity of work environment is 70%;The setting temperature of described cellular fabric 12 is 150 DEG C; Described cellular fabric 12 mesh is hexagonal structure;The fabric width of described cellular fabric 12 is 1.2m, grammes per square metre is 100g/m2.
Further, the described composite sheet course of processing is as follows: carried out by thermoplastic resin particle After vacuum drying treatment, it is extruded into molten sheet material through screw extruder, simultaneously by after sizing Cellular fabric 12 is imported by deflector roll, forms embedded composite sheet after pressure roller extrudes, And cool down rolling, then by the molten sheet material of the composite sheet of rolling and extrusion again through two rollers Extruding laminating, forms sandwich structure composite sheet 14;Described thermoplastic resin particle is poly- Propylene (PP), Merlon (PC), acrylonitrile-butadiene-styrene copolymer (ABS) Particle, most preferably COPP particle;Described thermoplastic resin particle dried temperature Being 100 DEG C, the time is 10h, and dried particle water content is less than 2%;Described screw extruder Die head temperature be 200 DEG C, die head thickness is 1.0mm;The rotary speed of described deflector roll is 5.0rpm, temperature is 30 DEG C, and the temperature of pressure roller is 100 DEG C, and rotary speed is 5.0rpm.
As it is shown in figure 1, the manufacturing and processing equipment of described composite sheet, mainly by mop roller 1, Fabric embeds sheet material 2, screw extruder 3, molten sheet material 4, deflector roll 5, pressure roller 6, answers Conjunction sheet material 7, mop roller 28, cutting device 9, packing device 10 are constituted;Such as Fig. 2 and Tu Shown in 3, described sandwich structure composite sheet 14 includes thermoplastic sheets 1, cellular Fabric 12, thermoplastic sheets 2 13;Thermoplastic sheets 1 and thermoplastic sheets 2 13 it Between clip cellular fabric 12.
Further, the described case casing forming course of processing is as follows: by sandwich structure composite sheet 14 preheat through baking oven, send in the lower mold of thermoforming press, at uniform temperature, pressure strip Under part, mold is pressed therewith, upper/lower die is cooled down, take out the pull bar after molding Case case shell;The preheating temperature of described sandwich structure composite sheet 14 is 200 DEG C, during preheating Between be 6s;The upper/lower die of described heat pressing forming machines needs to preheat, in advance before sheet material is sent into Heat to temperature is 200 DEG C;Described sandwich structure composite sheet 14 in a mold press pressure Power is 10MPa, and pressing the time is 3s;The chilling temperature of described upper/lower die is 60 DEG C.
This detailed description of the invention is with cellular fabric as reinforcing material, and carries out with thermoplastic sheets Hot pressing is combined, thus forms sandwich thermoplastic composite sheet material structure, and is led to by this composite sheet Cross moulding shaping process and be prepared as draw-bar box case shell, make draw-bar box intensity high, the most easy to crack.
The above, only in order to technical scheme to be described and unrestricted, this area is common Other amendment or equivalent that technical scheme is made by technical staff, as long as not Depart from the spirit and scope of technical solution of the present invention, the claim model in the present invention all should be contained In the middle of enclosing.

Claims (4)

  1. The most cellular fabric composite thermoplastic sheet material and compression molding draw-bar box case shell processing method, It is characterized in that comprising three below step: the processing of cellular fabric, composite sheet are processed, case Casing forming is processed.
  2. Cellular fabric composite thermoplastic sheet material the most according to claim 1 and compression molding Draw-bar box case shell processing method, it is characterised in that the described cellular fabric course of processing is as follows: will After carrying out warping process process with the filament yarn of certain twist, tricot machine is made into honeycomb Shape fabric (12), after be fixed on needle plate and slowly move regulation fabric width to, make mesh form positive six Limit shape structure, carries out heat-shaping through hot air type baking oven to it, rear rolling of having shaped;Described Thickness of yarn is 70~800D, and the twist is 150~250 sth. made by twisting/10cm;Described yarn is that superelevation is divided Sub-weight northylen yarn, carbon fiber, polypropylene, chinlon, terylene, aramid fiber;Described cellular knit Thing (12) processing temperature is 15~25 DEG C, and the relative humidity of processing environment is 50%~80%;Described The setting temperature of cellular fabric (12) is 100~200 DEG C;The net of described cellular fabric (12) Hole is hexagonal structure;The fabric width of described cellular fabric (12) is 0.8~1.5m, and grammes per square metre is 60~200g/m2.
  3. Cellular fabric composite thermoplastic sheet material the most according to claim 1 and compression molding Draw-bar box case shell processing method, it is characterised in that the described composite sheet course of processing is as follows: by heat After plastic resin particle carries out vacuum drying treatment, it is extruded into molten sheet through screw extruder Material, is imported the cellular fabric (12) after sizing by deflector roll, shape after pressure roller extrudes simultaneously Become embedded composite sheet, and cool down rolling, then molten by the composite sheet of rolling and extrusion Melt shape sheet material again through two roller extruding laminatings, form sandwich structure composite sheet (14);Described Thermoplastic resin particle is polypropylene (PP), Merlon (PC), acrylonitrile-butadiene-benzene second Alkene copolymer (ABS) particle, most preferably COPP particle;Described thermoplastic resin fat granule Sub-dried temperature is 80~150 DEG C, and the time is 8~15h, and dried particle water content is less than 2%;The die head temperature of described screw extruder is 180~250 DEG C, and die head thickness is 0.3~2.0mm;The rotary speed of described deflector roll is 1.0~8.0rpm, and temperature is 20~50 DEG C, The temperature of pressure roller is 30~180 DEG C, and rotary speed is 1.0~8.0rpm;Described composite sheet Manufacturing and processing equipment, is mainly embedded sheet material (2), screw extruder by mop roller one (1), fabric (3), molten sheet material (4), deflector roll (5), pressure roller (6), composite sheet (7), mop roller two (8), cutting device (9), packing device (10) are constituted;Described sandwich structure composite sheet (14) Including thermoplastic sheets one (11), cellular fabric (12), thermoplastic sheets two (13);Thermoplastic Cellular fabric (12) is clipped between property sheet material one (11) and thermoplastic sheets two (13).
  4. Cellular fabric composite thermoplastic sheet material the most according to claim 1 and compression molding Draw-bar box case shell processing method, it is characterised in that the described case casing forming course of processing is as follows: by three Mingzhi's structure composite sheet material (14) preheats through baking oven, sends in the lower mold of thermoforming press, Under uniform temperature, pressure condition, mold is pressed therewith, upper/lower die is cooled down, Take out the draw-bar box case shell after molding;The preheating temperature of described sandwich structure composite sheet (14) Being 130~250 DEG C, preheating time is 5~10s;The upper/lower die of described heat pressing forming machines is at sheet Material needs to preheat before sending into, and being preheated to temperature is 130~250 DEG C;Described sandwich structure is multiple Closing sheet material (14) compaction pressure in a mold is 5~20MPa, and pressing the time is 3~5s;Described The chilling temperature of upper/lower die is 50~80 DEG C.
CN201610348270.0A 2016-05-24 2016-05-24 Honeycomb-shaped fabric composite thermoplastic sheet and machining method for molding case shell of trolley case through compression molding Pending CN105946252A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106945379A (en) * 2017-03-10 2017-07-14 安徽开润股份有限公司 A kind of fabric is hot pressed into the production and processing method of molding box shell
CN107283875A (en) * 2017-06-27 2017-10-24 东莞市海旭新材料技术有限公司 It is a kind of based on can thermoplastic fibre composite case and bag and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103144317A (en) * 2013-03-15 2013-06-12 滁州博润电脑配件有限公司 Method for preparing polypropylene sheet composite ultra-high molecular weight polyethylene fiber fabric
CN104842567A (en) * 2014-02-18 2015-08-19 覃利超 Equipment and method for manufacturing plastic housing from thermoplastic sheet
CN204585968U (en) * 2015-03-13 2015-08-26 大连塑料研究所有限公司 A kind of luggage plastic casing sheet material and luggage

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Publication number Priority date Publication date Assignee Title
CN103144317A (en) * 2013-03-15 2013-06-12 滁州博润电脑配件有限公司 Method for preparing polypropylene sheet composite ultra-high molecular weight polyethylene fiber fabric
CN104842567A (en) * 2014-02-18 2015-08-19 覃利超 Equipment and method for manufacturing plastic housing from thermoplastic sheet
CN204585968U (en) * 2015-03-13 2015-08-26 大连塑料研究所有限公司 A kind of luggage plastic casing sheet material and luggage

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郭兴峰: "《三维机织物》", 30 September 2015, 中国纺织出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106945379A (en) * 2017-03-10 2017-07-14 安徽开润股份有限公司 A kind of fabric is hot pressed into the production and processing method of molding box shell
CN107283875A (en) * 2017-06-27 2017-10-24 东莞市海旭新材料技术有限公司 It is a kind of based on can thermoplastic fibre composite case and bag and preparation method thereof

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Application publication date: 20160921