CN104029323A - Leather sheath and production method thereof - Google Patents
Leather sheath and production method thereof Download PDFInfo
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- CN104029323A CN104029323A CN201410236838.0A CN201410236838A CN104029323A CN 104029323 A CN104029323 A CN 104029323A CN 201410236838 A CN201410236838 A CN 201410236838A CN 104029323 A CN104029323 A CN 104029323A
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Abstract
The invention discloses a leather sheath and a production method thereof. The method comprises the following steps: (A) a transparent compound support plate is positioned in a first cavity of a first air extracting prepressing mold; and the upper surface of the transparent compound support plate is bonded with a light transmitting fabric, so that the first cavity is totally covered by the light transmitting fabric; (B) air between the transparent compound support plate and the light transmitting fabric is extracted by using an air extracting hole in the first cavity; and an intermediate product is obtained through hot pressing; (C) the intermediate product, after the hot pressing, is positioned in a second cavity of a second air extracting prepressing mold; the surface of one side, not bonded with the light transmitting fabric, of the transparent compound support plate is upwards; the light transmitting fabric is bonded on the surface of the side; and the second cavity is totally covered; and (D) the air between the intermediate product and the light transmitting fabric is extracted by using an air extracting hole in the second cavity; and a finished product is obtained through hot pressing. The method adopts the special molds to realize an air extracting hot pressing process in the hot pressing process of the leather sheath, so that the problems of difficult air exhaust among layers of the leather sheath and easy generation of bubbles on the fabric in the hot pressing are solved. The method realizes stable industrial production of the leather sheath.
Description
Technical field
Intelligent terminal product peripheral component processing of the present invention field, relates in particular to a kind of intelligent terminal protection leather sheath and production method thereof.
Background technology
At present, smart mobile phone and flat board are the most frequently used intelligent terminals of people, as compared with expensive equipment, in order to prevent that mobile phone or flat board are unexpected, are broken or damage, and various protection class leather sheaths come into vogue and come.The leather sheath of existing market is mostly common leather sheath, its adopt gas permeability with great difficulty the common fabric of hot pressing process.Along with mobile phone application and accessory more and more abundanter, leather sheath is corresponding there is not opening leather sheath or built-in intelligence display module, just can see or show incoming call, note or charging, time, alarm clock, the function of the states such as unread mail SMS notification, and needing single or double to paste transparent fabric conventionally, this class leather sheath realizes these functions, but fabric material is transparent again with ventilative contradictory, conventional hot-press production technology and frock clamp cannot effectively solve the problem of appearance a large amount of bubbles in surface in this type leather sheath production at present, this problem has a strong impact on product appearance and makes the type leather sheath cannot realize suitability for industrialized production.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art; the object of the present invention is to provide a kind of leather sheath and production method thereof; being intended to solve current intelligent terminal protection leather sheath, cannot to take into account material transparent and ventilative, and cannot eliminate the problem that bubble appears in fabric surface in process.
Technical scheme of the present invention is as follows:
A production method for leather sheath, wherein, said method comprising the steps of:
A, transparent composite support fagging is placed in to the first first die cavity of bleeding pre-pressing die, the upper surface laminating printing opacity fabric at transparent composite support fagging, makes printing opacity fabric cover the first die cavity completely;
B, utilize first the first aspirating hole arranging in the first die cavity of pre-pressing die of bleeding to extract the air between transparent composite support fagging and printing opacity fabric out, control first pre-pressing die of bleeding and the transparent composite support fagging after bleeding and printing opacity fabric are carried out to hot pressing obtain intermediate products;
C, the intermediate products after hot pressing are placed in to the second second die cavity of bleeding pre-pressing die, make transparent composite support fagging do not fit printing opacity fabric a side surface upward, the printing opacity fabric of fitting on this side surface, makes printing opacity fabric cover the second die cavity completely;
D, utilize second bleed the second aspirating hole of arranging in the second die cavity of pre-pressing die to extract the air between intermediate products and printing opacity fabric out, control second pre-pressing die of bleeding carries out hot pressing to the intermediate products after bleeding and printing opacity fabric and obtains finished product.
The production method of described leather sheath, wherein, described transparent composite support fagging is formed by two-layer transparent support plate laminating,
The production method of described leather sheath, wherein, described transparent support plate is clear polycarbonate (PC) plate or glass-fiber-plate.
The production method of described leather sheath, wherein, described transparent support plate is to paste hot melt adhesive film at ground floor transparent support plate one side surface, and at this side surface laminating second layer transparent support plate, the both sides transparent support plate after laminating is carried out to hot pressing and form.
The production method of described leather sheath, wherein, is covered with hot melt adhesive film in the one side of described printing opacity fabric and the laminating of transparent composite support fagging.
The production method of described leather sheath, wherein, described printing opacity fabric is thermoplasticity polyurethanes (TPU) composite material.
The production method of described leather sheath, wherein, also comprise before described steps A: design described first pre-pressing die of bleeding and comprise the first patrix and the first counterdie, and described second the pre-pressing die of bleeding comprise the second patrix and the second counterdie, in described the first counterdie, offering chamber tail band has the first die cavity of the first aspirating hole, and in described the second counterdie, offer the second die cavity that chamber tail band has the second aspirating hole, then respectively the second aspirating hole at the bottom of the first aspirating hole at the bottom of described the first die cavity chamber and the second die cavity chamber is communicated with to air-extractor.
The production method of described leather sheath, wherein, described the first aspirating hole and the second aspirating hole are all set to a plurality of, and are distributed in respectively position at the bottom of the chamber of close cavity lateral of described the first die cavity and the second die cavity.
The production method of described leather sheath, wherein, described first pre-pressing die and second of bleeding is bled in pre-pressing die hot pressing, and the first patrix and the equal design temperature of the second patrix are 160 ℃-180 ℃, hot pressing pressure is 0.4 MPa-0.6MPa, and hot pressing time is 15 seconds-20 seconds.
A leather sheath, wherein, described leather sheath adopts arbitrary above-mentioned production method to process.
Beneficial effect: the invention provides a kind of leather sheath and production method thereof; this method adopts special mould to realize the heat pressing process of bleeding in leather sheath hot pressing; thereby leather sheath interlayer exhaust problem while solving hot pressing; fabric is prone to the problem of bubble; by method of the present invention, can process intelligent display protection leather sheath; while having eliminated such leather sheath production, in precoat, be prone to the phenomenon of bubble simultaneously, thereby realized the stable suitability for industrialized production of processing procedure of such leather sheath.
Accompanying drawing explanation
Fig. 1 is the production method flow chart of leather sheath in the specific embodiment of the invention.
Fig. 2 is printing opacity fabric cross section structure schematic diagram in the specific embodiment of the invention.
Fig. 3 utilizes first schematic diagram that pre-pressing die carries out hot pressing for the first time of bleeding in the specific embodiment of the invention.
Fig. 4 utilizes second schematic diagram that pre-pressing die carries out hot pressing for the second time of bleeding in the specific embodiment of the invention.
Fig. 5 is the detailed process route map of leather sheath processing in the specific embodiment of the invention.
Fig. 6 is the cross section structure schematic diagram of leather sheath in the specific embodiment of the invention.
The specific embodiment
The invention provides a kind of leather sheath and production method thereof, for making object of the present invention, technical scheme and effect clearer, clear and definite, below the present invention is described in more detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The production method of a kind of leather sheath as shown in Figure 1, wherein, said method comprising the steps of:
S100, transparent composite support fagging is placed in to the first first die cavity of bleeding pre-pressing die, the upper surface laminating printing opacity fabric at transparent composite support fagging, makes printing opacity fabric cover the first die cavity completely.
Wherein, described transparent composite support fagging is formed by two-layer transparent support plate laminating, and concrete, described transparent support plate is transparent PC plate or glass-fiber-plate.PC plate is polycarbonate plate, and itself and glass-fiber-plate (glass mat) are common used materials in the high-grade leather sheath of intelligent terminal, have fabulous light transmission.Therefore, transparent composite support fagging can be formed by stacking by two-layer PC plate or two-layer glass-fiber-plate, so transparent composite support fagging specifically pastes hot melt adhesive film at ground floor transparent support plate one side surface, and at this side surface laminating second layer transparent support plate, the both sides transparent support plate after laminating is carried out to hot pressing and form.
When ground floor transparent support plate one side surface pastes hot melt adhesive film, also can mount magnet thereon, this magnet is for inhaling leather sheath to be attached to intelligent terminal or to light intelligent terminal screen by the Hall element effect of this magnet and intelligent terminal.
The present invention's printing opacity fabric used is specially thermoplasticity polyurethanes (TPU) composite material, TPU composite material has lamination layer structure as shown in Figure 2, it comprises middle ink resin mixed coating 120 and transparent protective film 110 and the transparent underlayer diaphragm 130 that is fitted in respectively ink resin mixed coating 120 top and bottom, described transparent protective film 110 and transparent underlayer diaphragm 130 are TPU material, the TPU fabric of high printing opacity is as leather sheath fabric, can show that the state of intelligent terminal is as incoming call, note or charging, time, alarm clock, unread mail SMS notification etc.Described ink resin mixed coating 120 mixes by the ink of resin and particular color, thereby makes whole printing opacity fabric present the color of ink.And and then make leather sheath present the color of this ink.Therefore, user can need to prepare the leather sheath that presents different colours by selection different colours ink according to leather sheath design.
On the printing opacity fabric of fitting at the upper surface of transparent composite support fagging in step S100, be provided with hot melt adhesive film, be to be covered with hot melt adhesive film in the one side of printing opacity fabric and transparent composite support fagging laminating, thereby printing opacity fabric is fitted to after composite support fagging, by hot melt adhesive film and hot pressing, both are pressed to together.
Because needs carry out specialized designs for leather sheath production method of the present invention to mould, therefore, also comprise before described step S100: design described first pre-pressing die of bleeding and comprise the first patrix and the first counterdie, and described second the pre-pressing die of bleeding comprise the second patrix and the second counterdie, in described the first counterdie, offering chamber tail band has the first die cavity of the first aspirating hole, and in described the second counterdie, offer the second die cavity that chamber tail band has the second aspirating hole, then respectively the second aspirating hole at the bottom of the first aspirating hole at the bottom of described the first die cavity chamber and the second die cavity chamber is communicated with to air-extractor.
S200, utilize first the first aspirating hole arranging in the first die cavity of pre-pressing die of bleeding to extract the air between transparent composite support fagging and printing opacity fabric out, control first pre-pressing die of bleeding and the transparent composite support fagging after bleeding and printing opacity fabric are carried out to hot pressing obtain intermediate products.
The processing technology of described step S100 and S200 as shown in Figure 3, described first pre-pressing die of bleeding specifically comprises the first patrix 310 and the first counterdie 320, in described the first counterdie 320, be provided for placing the first die cavity of transparent composite support fagging 200, the shape of the first die cavity is identical with transparent composite support fagging 200, its size is slightly larger than transparent composite support fagging, is provided with the first aspirating hole 321 and is communicated with air-extractor at the bottom of described the first die cavity chamber.Wherein, described the first aspirating hole 321 is set to a plurality of, and be distributed in described the first die cavity near the chamber of cavity lateral at the bottom of position.At the first die cavity chamber wall bottom position, around interval at the bottom of chamber, a plurality of the first aspirating holes 321 are set.
As shown in Figure 3, after in described step S100, printing opacity fabric 100 fits on transparent composite support fagging 200, it covers the first die cavity completely, be equivalent near closed hollow ring space, the first aspirating hole after having guaranteed is bled and can effectively be extracted the air between printing opacity fabric 100 and transparent composite support fagging 200 out.After deflating, the first patrix 310 presses on the first counterdie 320 and carries out hot pressing, printing opacity fabric 100 and transparent composite support fagging 200 are pressed closely, together with hot melt adhesive film in transparent composite support fagging 200 1 sides of printing opacity fabric 100 laminating can closely adhere to printing opacity fabric 100 with transparent composite support fagging 200 by this hot pressing, and owing to bleeding before hot pressing, between printing opacity fabric 100 and transparent composite support fagging 200, after pressing, there will not be bubble.
Adopt hot press with high frequency to utilize first pre-pressing die of bleeding to carry out hot pressing, the first patrix 310 design temperatures are 160-180 ℃, best design temperature is 170 ℃, the first counterdie 320 does not heat, for natural norm temperature, hot pressing pressure is 0.4-0.6MPa, and optimum compression pressure is 0.5 Mpa, hot pressing time is 15-20 second, and the hot pressing of generally take 15 seconds is the best.
S300, the intermediate products after hot pressing are placed in to the second second die cavity of bleeding pre-pressing die, make transparent composite support fagging do not fit printing opacity fabric a side surface upward, the printing opacity fabric of fitting on this side surface, makes printing opacity fabric cover the second die cavity completely.
S400, utilize second bleed the second aspirating hole of arranging in the second die cavity of pre-pressing die to extract the air between intermediate products and printing opacity fabric out, control second pre-pressing die of bleeding carries out hot pressing to the intermediate products after bleeding and printing opacity fabric and obtains finished product.
Similar to first pre-pressing die of bleeding, as shown in Figure 4, described second pre-pressing die of bleeding comprises the second patrix 410 and the second counterdie 420, and described the second counterdie 420 is provided with the second die cavity, is also provided with the second aspirating hole 421 and is communicated with air-extractors at the bottom of the chamber of described the second die cavity.Same, described the second aspirating hole 421 is also set to a plurality of, and be distributed in described the second die cavity near the chamber of cavity lateral at the bottom of position.
As shown in Figure 4, after in described step 300, intermediate products fit on transparent composite support fagging 200, it covers the second die cavity completely, seal whole Second-Type cavity space, the second aspirating hole 421 after having guaranteed is bled and can effectively be extracted the air between upper strata printing opacity fabric 100 and transparent composite support fagging 200 out.After deflating, the second patrix 410 presses on the second counterdie 420 and carries out hot pressing, upper strata printing opacity fabric 100 and transparent composite support fagging 200 are pressed closely, upper strata printing opacity fabric 100 fits in the one side of transparent composite support fagging 200 and is covered with hot melt adhesive film, together with it can closely adhere to printing opacity fabric 100 with transparent composite support fagging 200 by this hot pressing, owing to bleeding before hot pressing, between printing opacity fabric 100 and transparent composite support fagging 200, after pressing, there will not be bubble.
Adopt hot press with high frequency to utilize second pre-pressing die of bleeding to carry out hot pressing, the second patrix 410 design temperatures are 160-180 ℃, and best design temperature is 170 ℃, and the second counterdie 420 does not heat, and is natural norm temperature.Hot pressing pressure is 0.4-0.6MPa, and optimum compression pressure is 0.5 Mpa, and hot pressing time is 15-20 second, and the hot pressing of generally take 15 seconds is the best.
By the above-mentioned heat pressing process of bleeding of the present invention; can effectively improve the stability of strutting system of the hot pressing process of preparation intelligent display protection class leather sheath; can effectively reduce before this because hot pressing fabric surface occurs that bubble fraction defective is high and cause higher cost loss, for this type of intelligent display peripheral components opens up out the process route that tool can industrialization volume production.
The specific embodiment for employing leather sheath production process route of the present invention as shown in Figure 5, its concrete route steps is:
S1, fabric and lining sawing sheet.Route technique starts, and first adopts cutting die to carry out sawing sheet to fabric and lining.
S2, the 1st layer of PC plate cover hot melt adhesive film.On a side surface of PC plate, brush hot melt adhesive film.
S3, PC plate mount magnet.According to leather sheath designing requirement, can on PC plate, utilize assembled fixture to mount for adsorbing and for lighting the magnet of intelligent terminal screen.
S4, the 2nd layer of PC plate and the 1st layer of PC plate hot pressing laminating.At the 1st layer of PC plate, paste the 2nd layer of PC plate of a side laminating of hot melt adhesive film.
S5, the 1st layer of TPU hot pressing.Adopt vacuum suction pre-pressing die provided by the invention (be above-mentioned first bleed pre-pressing die) to bleed and hot pressing, make the 1st layer of TPU and the pressing of PC plate closely knit.
S6, the 2nd layer of TPU hot pressing.Adopt vacuum suction pre-pressing die provided by the invention (be above-mentioned second bleed pre-pressing die) to bleed and hot pressing, make the 2nd layer of TPU and the intermediate products after step S5 hot pressing carry out hot pressing, make the another side pressing of the 2nd layer of TPU and PC plate closely knit.
S7, high frequency voltage edge.TPU fabric after adopting voltage mould to pressing and PC plate carry out edge sealing and obtain semi-finished product, and the electric current that voltage mould adopts is 0.4-0.5A, and high frequency and air pressure time are 15 seconds.
S8, semi-finished product trimming and piercing die.Utilize punching cutter to carry out deburring and punching to semi-finished product.
S9, the assembling of finished product hot melt.Utilize hot melting fixture to carry out hot melt assembling to product, obtain finished product.
S10, functional check.Resulting product is carried out to the detection of function aspects.If perform step S11 after qualified, if defective this product is decided to be faulty materials.
S11, visual examination.Product is required to carry out the detection of outward appearance aspect according to appearance design, if qualified, perform step S12, if defective this product is decided to be faulty materials.
S12, packing.
S13, warehouse are stored.
The present invention also provides a kind of leather sheath, and wherein, described leather sheath adopts the production method described in as above embodiment to process.The cross section layer structure of described leather sheath as shown in Figure 6, it comprises the transparent composite support flaggy being comprised of two-layer transparent support plate 210, be positioned at the printing opacity fabric 100 in transparent support plate 210 outsides, between two transparent support plates 210 and between printing opacity fabric 100 and transparent support plate 210, also including hot melt adhesive layer 140, together with printing opacity fabric closely adheres to by hot melt adhesive layer with transparent support plate, form leather sheath, there is not any bubble in transparent support plate direction in this leather sheath, in fabric direction, does not have any bubble bad order effect yet.
In addition, the present invention also provides a kind of intelligent terminal external member, and it comprises above-mentioned leather sheath and intelligent terminal, and intelligent terminal is coated by leather sheath, avoids friction, collision etc. to damage intelligent terminal, can also change the aesthetic appearance of intelligent terminal.Wherein, intelligent terminal can be mobile phone or panel computer etc.
The invention provides a kind of leather sheath and production method thereof; this method adopts special mould to realize the heat pressing process of bleeding in leather sheath hot pressing; thereby leather sheath interlayer exhaust problem while solving hot pressing; fabric is prone to the problem of bubble; by method of the present invention, can process intelligent display protection leather sheath; while having eliminated such leather sheath production, in precoat, be prone to the phenomenon of bubble simultaneously, thereby realized the stable suitability for industrialized production of processing procedure of such leather sheath.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. a production method for leather sheath, is characterized in that, said method comprising the steps of:
A, transparent composite support fagging is placed in to the first first die cavity of bleeding pre-pressing die, the upper surface laminating printing opacity fabric at transparent composite support fagging, makes printing opacity fabric cover the first die cavity completely;
B, utilize first the first aspirating hole arranging in the first die cavity of pre-pressing die of bleeding to extract the air between transparent composite support fagging and printing opacity fabric out, control first pre-pressing die of bleeding and the transparent composite support fagging after bleeding and printing opacity fabric are carried out to hot pressing obtain intermediate products;
C, the intermediate products after hot pressing are placed in to the second second die cavity of bleeding pre-pressing die, make transparent composite support fagging do not fit printing opacity fabric a side surface upward, the printing opacity fabric of fitting on this side surface, makes printing opacity fabric cover the second die cavity completely;
D, utilize second bleed the second aspirating hole of arranging in the second die cavity of pre-pressing die to extract the air between intermediate products and printing opacity fabric out, control second pre-pressing die of bleeding carries out hot pressing to the intermediate products after bleeding and printing opacity fabric and obtains finished product.
2. the production method of leather sheath according to claim 1, is characterized in that, described transparent composite support fagging is formed by two-layer transparent support plate laminating.
3. the production method of leather sheath according to claim 2, is characterized in that, described transparent support plate is clear polycarbonate plate or glass-fiber-plate.
4. the production method of leather sheath according to claim 3, it is characterized in that, described transparent support plate is to paste hot melt adhesive film at ground floor transparent support plate one side surface, and at this side surface laminating second layer transparent support plate, the both sides transparent support plate after laminating is carried out to hot pressing and form.
5. the production method of leather sheath according to claim 1, is characterized in that, in the one side of described printing opacity fabric and the laminating of transparent composite support fagging, is covered with hot melt adhesive film.
6. the production method of leather sheath according to claim 1, is characterized in that, described printing opacity fabric is thermoplasticity polyurethanes composite material.
7. the production method of leather sheath according to claim 1, is characterized in that, before steps A, also comprises:
Design described first pre-pressing die of bleeding and comprise the first patrix and the first counterdie, and described second the pre-pressing die of bleeding comprise the second patrix and the second counterdie, in described the first counterdie, offering chamber tail band has the first die cavity of the first aspirating hole, and in described the second counterdie, offer the second die cavity that chamber tail band has the second aspirating hole, then respectively the second aspirating hole at the bottom of the first aspirating hole at the bottom of described the first die cavity chamber and the second die cavity chamber is communicated with to air-extractor.
8. the production method of leather sheath according to claim 7, is characterized in that, described the first aspirating hole and the second aspirating hole are all set to a plurality of, and is distributed in respectively position at the bottom of the chamber of close cavity lateral of described the first die cavity and the second die cavity.
9. the production method of leather sheath according to claim 7, it is characterized in that, described first pre-pressing die and second of bleeding is bled in pre-pressing die hot pressing, the first patrix and the equal design temperature of the second patrix are 160 ℃-180 ℃, hot pressing pressure is 0.4 MPa-0.6MPa, and hot pressing time is 15 seconds-20 seconds.
10. a leather sheath, is characterized in that, described leather sheath adopts the production method as described in claim 1-9 any one to process.
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| CN201410236838.0A CN104029323B (en) | 2014-05-30 | 2014-05-30 | A kind of leather sheath and its production method |
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| Publication number | Publication date |
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| CN104029323B (en) | 2018-03-16 |
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