CN112243056B - Production method of multicolor seamless splicing leather sheath - Google Patents
Production method of multicolor seamless splicing leather sheath Download PDFInfo
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- CN112243056B CN112243056B CN202011096356.1A CN202011096356A CN112243056B CN 112243056 B CN112243056 B CN 112243056B CN 202011096356 A CN202011096356 A CN 202011096356A CN 112243056 B CN112243056 B CN 112243056B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention provides a production method of a multicolor seamless splicing leather sleeve, which comprises the following steps: step 1, gum application; step 2, punching positioning holes and shapes; step 3, punching the shape of the leather of the color splicing strip; step 4, positioning the jacking release paper; step 5, positioning a first leather of the trepanning material; step 6, positioning the multicolor leather of the trepanning; step 7, die cutting the multicolor spliced forming material strip; step 8, removing waste materials; step 9, forming, punching and discharging waste; step 10, high-frequency hot pressing; and 11, tearing off release paper and double-sided adhesive of the hot melt adhesive. The invention successfully solves the problems that the seamless splicing of the veneers with various colors can be realized on one product, the design scheme of infinitely splicing various color patterns can be provided on the appearance design of the product, more innovative concepts can be exerted, the limitation of single-color or double-color veneering is broken, the multi-color spliced leather sleeve product brings great visual impact experience to users, and the multiple colors are gorgeous and charming.
Description
Technical Field
The invention relates to a production method of leather sheath, in particular to a production method of multicolor leather sheath.
Background
The existing double-color or multi-color leather products on the market are all traditional processes, leather materials with a plurality of colors are separately cut into set shapes, and then the edges of the leather materials are aligned and attached by the aid of manual methods such as one-piece method, two-piece method … … and the like. Various quality problems of the manual veneer gluing, such as the generation of gaps caused by the deviation of the veneer gluing alignment, the deformation of leather strips, the height difference between leather materials, the generation of cockling distortion and the like, can not be controlled and solved.
Most of the color matching of the existing leather sheath products in the market is double-color leather splicing, and the products spliced by the common splicing process have a plurality of bad problems, such as appearance problems of gaps, lifting, flanging, extruding and protruding and the like at the splicing part, the more color matching problems are, the more color matching process technology is limited, and the appearance design scheme is also limited.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a production method of a multicolor seamless splicing leather sleeve, which comprises the following steps:
step 1: back gluing:
combining the double-sided adhesive tape and the release paper of the double-sided adhesive tape into a whole to form the release paper with the double-sided adhesive tape;
step 2: punching positioning holes and shapes:
obtaining the complete release paper appearance with double-sided adhesive and a positioning hole through die cutting;
and step 3: punching and splicing the shape of the color strip leather:
before punching, a layer of hot melt adhesive is adhered to the lower surfaces of all the leather materials, and release paper of the hot melt adhesive is adhered to the hot melt adhesive; punching leather materials with various colors and shapes;
and 4, step 4: positioning sleeve material release paper:
placing the release paper with the double-sided adhesive tape into a positioning jig, wherein one side with the double-sided adhesive tape faces upwards;
and 5: positioning a first leather material of a trepanning:
nesting the first sheet material 1 into a positioning jig, wherein the appearance surface of the leather material faces downwards, and the first leather material is adhered and fixed on the double-faced adhesive;
step 6: positioning a trepanning multicolor leather material:
after the first leather material is sleeved to the positioning jig through the positioning hole, the appearance surface of the leather material faces downwards, one part of the second leather material is adhered and fixed on the double-faced adhesive, the other part of the second leather material is lapped on the first leather material, and other leather materials are sequentially adhered to the double-faced adhesive in a positioning mode according to the method and used for next step punching;
and 7: die cutting multi-color splicing forming material strips:
punching by a die cutting machine, setting height stroke parameters of the die cutting machine, simultaneously punching by a plurality of rows of blades, only cutting off all the leather, not cutting off release paper of double-sided adhesive tape, punching out the designed width size of each piece of leather to obtain the leather meeting the size requirement, and cutting out a part of redundant waste;
and 8: removing waste materials;
tearing off redundant leftover materials, wherein in the process of tearing off the leftover materials, one part of each piece of leather is fixedly adhered to the double-faced adhesive tape, and the other part of the leather suspended along a handle is trowelled while tearing off the redundant leftover materials, so that all the pieces of leather are flatly adhered to the double-faced adhesive tape;
and step 9: forming, punching and discharging waste:
cutting the appearance and the positioning hole of the whole leather sheath on a die-cutting machine by using a forming cutter die; waste materials are arranged outside the knife lines, and redundant waste materials are torn off;
step 10: high-frequency hot pressing:
the plastic part main body is positioned and installed in a lower die of a high-cycle hot-pressing die, a positioning needle is designed on the lower die, release paper of hot melt adhesive on the leather is firstly torn off, the hot melt adhesive is exposed, then the whole leather assembly is covered on the plastic main body, and the positioning needle of the lower die is sleeved in the positioning hole on the release paper of the double-sided adhesive tape; taking out the product after opening the die, tearing off the release paper of the double-sided adhesive tape, and naturally cooling to obtain a semi-finished product with perfectly adhered skin;
step 11: and tearing off release paper and double-sided adhesive tape of the hot melt adhesive.
As a further improvement of the present invention, step 8 is followed by the following steps: step 8.1: gluing a splicing side seam: and coating a liquid hot melt adhesive at the gap between the color matching leather, namely coating the liquid hot melt adhesive on the side surface of the middle of the two leather materials.
As a further improvement of the present invention, step 8.1 is followed by the following steps: step 8.2: and (3) forming LOGO holes, cutting the LOGO holes by using a die cutting or laser cutting method, and loading multicolor leather LOGO into the leather before the high-frequency hot pressing step.
As a further improvement of the present invention, step 11 is followed by the following steps: step 12: processing a camera hole and forming: and (4) accurately sleeving the semi-finished product into a positioning jig through a positioning hole on the semi-finished product, and removing waste at the photographing hole by using a laser cutting or cutting die punching step to obtain a final product.
As a further improvement of the invention, in the step 1, the double-sided adhesive tape and the release paper of the double-sided adhesive tape are combined into a whole by using an automatic adhesive tape backing machine.
As a further improvement of the invention, in step 3, the leathers with various colors and shapes are respectively punched and cut by an automatic die cutting machine.
The invention has the beneficial effects that:
the invention successfully solves the problems that the seamless splicing of the veneers with various colors can be realized on one product, the design scheme of infinitely splicing various color patterns can be provided on the appearance design of the product, more innovative concepts can be exerted, the limitation of single-color or double-color veneering is broken, the multi-color spliced leather sleeve product brings great visual impact experience to users, and the multiple colors are gorgeous and charming.
The invention is verified by tens of various idea schemes and experiments, finally leather sheets are punched by a high-precision die-cutting machine, each leather sheet is provided with a positioning hole, half of multicolor leathers are adhered and fixed on double-sided adhesive in a multicolor splicing process, the other half of multicolor leathers are overlapped and covered on the other leathers to form end parts overlapping, a plurality of rows of blades are simultaneously punched by setting height stroke parameters of the die-cutting machine, only all leathers are cut, release paper is not cut, the designed width size of each leather is punched to obtain the leathers (I), (II), a part of redundant waste is cut, the waste removing process is to tear off redundant leftover materials to obtain the leathers (I), (II), in the process of tearing off the leftover materials, half of each leather is fixedly adhered on the release paper, the redundant leftover materials are torn off, and the other half of the leather materials suspended in the process of smearing is carried out along with a handle, make every slice of cladding all level and smooth the bonding on releasing from type paper, do not have the shift position and can produce the clearance, produce the deformation, produce the difference in height, produce quality risk that pincher trees distortion etc. can't solve.
The side is that the independent face concatenation is tight and together between polychrome cladding and cladding, and test or use is that the product takes place to warp, has crooked clearance between the polychrome cladding, leads to cladding straight flange position to expose, easily scrapes the hair, permanent gap, tears bad quality problems such as opening, for solving this problem, scribbles liquid hot melt adhesive in the middle side of two cladding, realizes polychrome cladding concatenation side seamless veneer gluing technique after high cycle hot pressing mould heat aftercooling.
The plastic main body is positioned and installed in a lower die of a high-cycle hot-pressing die by adopting a die jig positioning and skin-pasting technology, a positioning pin is designed on the lower die, release paper on the leather is firstly torn off, hot melt adhesive is exposed, then the whole leather assembly is covered on the plastic main body, and the positioning pin of the lower die is sleeved in the positioning hole on the release paper of the double-faced adhesive tape. The high-frequency hot-pressing die is designed to be high-precision and shape-proof, an upper die is downwards clamped, and high-frequency discharge hot pressing is carried out. The process integrally thermally bends a plurality of original planar color matching leather materials and accurately presses the color matching leather materials into the arc-shaped groove of the plastic main body. The problems of manual skin sticking, such as gap generation, deformation, height difference generation, wrinkle distortion generation and the like of the skin sticking caused by contraposition deviation, which cannot be solved, are solved.
Drawings
FIG. 1: the invention is a structural schematic diagram of a multicolor seamless splicing leather sleeve;
FIG. 2: an exploded view of one embodiment of a multicolor holster;
FIG. 3: a schematic diagram of gum production;
FIG. 4: schematic diagram of punching positioning hole and shape;
FIG. 5: die cutting the leather material;
FIG. 6: FIG. 5 is a sectional view taken along line A-A;
FIG. 7: an enlarged view of portion a in fig. 6;
FIG. 8: a schematic diagram of a positioning fixture;
FIG. 9: the positioning jig positions the release paper with the double-sided adhesive tape;
FIG. 10: positioning a first leather material of a jacking;
FIG. 11: positioning a three-dimensional view of a nesting multicolor leather;
FIG. 12: the front view of FIG. 11;
FIG. 13: FIG. 12A-A is a cross-sectional view;
FIG. 14: fig. 13 is an enlarged view of a portion a;
FIG. 15: a schematic diagram of a punching cutter die;
FIG. 16: a leather sheath to be punched is in a three-dimensional view;
FIG. 17: a front view of the leather sheath to be punched;
FIG. 18: a schematic diagram of the splicing edge of the leather sheath is punched by a cutting die (comparison before and after punching);
FIG. 19: schematic diagram of waste removal;
FIG. 20: schematic representation after waste material is removed;
FIG. 21: coating a liquid thermosol schematic diagram at the gap of the color matching leather;
FIG. 22: a schematic view of a forming cutter die;
FIG. 23: forming and punching a schematic diagram;
FIG. 24: tearing off the redundant waste material schematic diagram;
FIG. 25: loading LOGO into a leather schematic;
FIG. 26: the leather is turned over in the high-frequency hot pressing process;
FIG. 27 is a schematic view showing: high frequency hot pressing;
FIG. 28: a multicolor seamless splicing hot-pressing skin-sticking effect picture;
FIG. 29: cutting a schematic diagram of a camera hole;
FIG. 30: and finally, drawing a mobile phone cover product.
The names of the components in the figure are as follows:
a first leather 1, a second leather 2, a third leather 3, a fourth leather 4, a fifth leather 5, a sixth leather 6 (font, LOGO), a main body 7 (plastic part),
The device comprises hot melt adhesive release paper 100, double-sided adhesive release paper 101, hot melt adhesive 102, leather 103, leather appearance surface 104, double-sided adhesive 105, double-sided adhesive release paper 106, a positioning jig 107, a metal positioning pin 108, a jig bottom plate 109, redundant waste 110, a punching blade 201, a punching blade holder 202, two leather middle side surfaces 203, a forming blade 204, a forming blade holder 205, a die cutting line 206, peripheral waste 207, a plastic part main body 208, a leather sticking groove 209, a leather sheath 210, a positioning hole 301 and camera shooting hole waste 302.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The production method of the multicolor seamless splicing leather sleeve comprises the following steps:
step 1: and (7) carrying out gum application.
As shown in fig. 3, the double-sided adhesive tape and the double-sided adhesive tape release paper 101 are integrated by an automatic adhesive tape backing machine to form a double-sided adhesive tape release paper 106.
And a step 2: punching the positioning holes and the shapes.
As shown in fig. 4, the complete shape of the release paper and the positioning hole are obtained by die cutting and punching.
Step 3: and punching the shape of the leather material of the color splicing strip.
As shown in fig. 5 to 7, the leather materials with various colors and shapes are respectively punched by an automatic die-cutting machine, and a layer of hot melt adhesive is adhered to the lower surfaces of all the leather materials before punching, so that the leather materials can be manufactured in the following process.
And step 4: and (5) positioning and jacking release paper.
As shown in fig. 8 to 9, the release paper 106 with double-sided adhesive tape is placed in the positioning fixture 107, and one side of the double-sided adhesive tape faces upward for adhering leather to perform positioning function.
Step 5: and positioning the first leather of the jacking.
As shown in FIG. 10, the first sheet 1 is precisely inserted into the positioning jig 107 with the outer surface of the leather facing downward, and the first leather 1 is adhesively fixed on the double-sided adhesive.
Step 6: positioning the multi-color leather of the trepanning.
As shown in fig. 11 to 14, the first leather 1 is precisely sleeved into the positioning jig 107 through the positioning hole, the appearance surface of the leather faces downward, half of the second leather 2 is adhered and fixed on the double-sided adhesive, and the other half is lapped on the first leather 1, and according to the method, the third leather 3, the fourth leather 4 and the fifth leather 5 are sequentially positioned and adhered on the double-sided adhesive 105 for the next punching process.
Step 7: die cutting multi-color splicing forming material strips.
As shown in fig. 15 to 18, through die cutting by a die cutting machine, height stroke parameters of the die cutting machine are set, a plurality of rows of blades are simultaneously die-cut, only all the leathers are cut, the release paper is not cut, each piece of the leathers is die-cut to design the width dimension, the leathers meeting the dimension requirement are obtained, and a part of redundant waste materials are cut.
Step 8: and (4) discharging waste materials.
As shown in fig. 19 and 20, the waste material removing process is to tear off the redundant leftover materials to obtain the upper-drawing leather materials 1, 2, 3, 4 and 5, in the process of tearing off the leftover materials, half of the positions of all the leather materials are fixedly adhered to the double-faced adhesive tape 105, the other half of the leather materials suspended in the air along the handle are leveled while tearing off the redundant leftover materials, so that all the leather materials are flatly adhered to the double-faced adhesive tape 105, no moving position exists to generate gaps, deformation is generated, height difference is generated, and unsolvable quality risks such as wrinkle distortion are generated. It is stated that a part of the waste material is stuck on the double-sided adhesive tape, but can be easily torn off from the double-sided adhesive tape because of a narrow strip.
Step 9: and gluing the splicing side seams.
As shown in FIG. 21, a liquid hot melt adhesive is applied to the gap between the color matching skins. Namely, the side surface of the middle of the two leather materials is coated with liquid hot melt adhesive.
Step 10: and (4) forming LOGO holes, and cutting the LOGO hole positions by using a die cutting or laser cutting method.
Step 11: and manufacturing a forming cutting die.
The cutting die is shown in figure 22.
Step 12: and (6) forming and punching.
As shown in fig. 23, the entire holster profile and pilot holes are cut with a forming die on a die cutter.
Step 13: and (5) secondary waste discharge.
As shown in fig. 24, the waste material is present except for the knife line. Tearing off the excess waste.
Step 14: and (5) inlaying LOGO.
As shown in fig. 25, a multi-colored skin LOGO is loaded into the skin.
Step 15: and (4) high-frequency hot pressing.
As shown in fig. 26 and 27, the plastic part main body 208 is positioned and installed in the lower mold of the high-cycle hot-pressing mold, and the positioning pins are designed on the lower mold, the release paper 100 of the hot melt adhesive on the skin is firstly torn off to expose the hot melt adhesive, then the whole skin assembly is covered on the plastic main body, and the positioning pins of the lower mold are sleeved in the positioning holes on the release paper 101 of the double-sided adhesive. The high-frequency hot-pressing die is designed to be high-precision and shape-proof, an upper die is downwards clamped, and high-frequency discharge hot pressing is carried out. The process integrally thermally bends a plurality of original planar color matching leather materials and accurately presses the color matching leather materials into the arc-shaped groove of the plastic main body. The problems of manual skin sticking, such as gap generation, deformation, height difference generation, wrinkle distortion generation and the like of the skin sticking c in contraposition deviation, which cannot be solved, are solved. And (3) taking out the product after opening the die, tearing off the release paper 101 with the double-sided adhesive tape, and naturally cooling to obtain a semi-finished product with perfectly adhered skin.
Step 16: and tearing off release paper and double-sided adhesive tape of the hot melt adhesive.
As shown in fig. 28, it is a multicolor seamless splicing hot-pressing skin effect diagram.
Step 17: and processing and forming a camera hole.
As shown in fig. 29, the semi-finished product is precisely sleeved into the positioning jig through the positioning hole on the semi-finished product, and the waste material at the photographing hole is removed by using a laser cutting or cutting die punching process to obtain the final product.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (5)
1. A production method of a multicolor seamless splicing leather sleeve is characterized by comprising the following steps: the method comprises the following steps:
step 1: back gluing:
combining a double-sided adhesive tape (105) and a release paper (101) of the double-sided adhesive tape into a whole to form a release paper (106) with the double-sided adhesive tape;
step 2: punching positioning holes and shapes:
obtaining the complete shape and positioning holes of the release paper (106) with the double-sided adhesive tape by die cutting;
and step 3: punching and splicing the shape of the color strip leather:
before punching, a layer of hot melt adhesive (102) is adhered to the lower surfaces of all the leather materials, and release paper (100) of the hot melt adhesive is adhered to the hot melt adhesive; punching leather materials with various colors and shapes;
and 4, step 4: positioning sleeve material release paper:
putting a release paper (106) with double-sided adhesive tape into a positioning jig (107), wherein one side with the double-sided adhesive tape faces upwards;
and 5: positioning a first leather material of a trepanning:
nesting the first sheet material 1 into a positioning jig (107), wherein the appearance surface of the leather material faces downwards, and the first leather material is bonded and fixed on the double-faced adhesive;
step 6: positioning a trepanning multicolor leather material:
after the first leather material is sleeved to the positioning jig (107) through the positioning hole, the appearance surface of the leather material faces downwards, one part of the second leather material is adhered and fixed on the double-sided adhesive, the other part of the second leather material is lapped on the first leather material, and other leather materials are sequentially adhered to the double-sided adhesive (105) in a positioning mode according to the method for next step punching;
and 7: die cutting multi-color splicing forming material strips:
through die cutting by a die cutting machine, setting height stroke parameters of the die cutting machine, simultaneously cutting a plurality of rows of blades, only cutting all the leather materials, not cutting release paper (101) of double-sided adhesive tape, cutting each piece of leather material by a designed width dimension to obtain the leather materials meeting the dimension requirement, and cutting a part of redundant waste materials;
and 8: removing waste materials;
tearing off redundant leftover materials, wherein in the process of tearing off the leftover materials, a part of leather materials of each piece are fixedly adhered to the double-sided adhesive tape (105), and the other part of leather materials suspended along a handle are leveled while the redundant leftover materials are torn off, so that all the leather materials of each piece are flatly adhered to the double-sided adhesive tape (105); coating liquid hot melt adhesive on the gap between the color matching leather, namely coating the liquid hot melt adhesive on the side surface of the middle of the two leather materials;
and step 9: forming, punching and discharging waste:
cutting the appearance and the positioning hole of the whole leather sheath on a die-cutting machine by using a forming cutter die; waste materials are arranged outside the knife lines, and redundant waste materials are torn off;
step 10: high-frequency hot pressing:
the plastic part main body (208) is positioned and installed in a lower die of a high-cycle hot-pressing die, a positioning needle is designed on the lower die, release paper (100) of hot melt adhesive on the leather is firstly torn off to expose the hot melt adhesive, then the whole leather assembly is covered on the plastic main body, and the positioning needle of the lower die is sleeved in a positioning hole on the release paper (101) of the double-sided adhesive; taking out the product after opening the die, tearing off the release paper (101) of the double-sided adhesive tape, and naturally cooling to obtain a semi-finished product with perfectly adhered skin;
step 11: and tearing off release paper and double-sided adhesive tape of the hot melt adhesive.
2. The method for producing a multicolor seamless spliced leather sleeve according to claim 1, characterized in that: the following steps are also included after step 8: and (3) forming LOGO holes, cutting the LOGO holes by using a die cutting or laser cutting method, and loading multicolor leather LOGO into the leather before the high-frequency hot pressing step.
3. The method for producing a multicolor seamless spliced leather sleeve according to claim 1, characterized in that: step 11 is followed by the steps of: step 12: processing a camera hole and forming: and (4) accurately sleeving the semi-finished product into a positioning jig through a positioning hole on the semi-finished product, and removing waste at the photographing hole by using a laser cutting or cutting die punching step to obtain a final product.
4. The method for producing a multicolor seamless spliced leather sleeve according to claim 1, characterized in that: in the step 1, an automatic adhesive tape backing machine is used for combining the double-sided adhesive tape (105) and the release paper (101) of the double-sided adhesive tape into a whole.
5. The method for producing a multicolor seamless spliced leather sleeve according to claim 1, characterized in that: and 3, respectively punching out the leathers with various colors and shapes by an automatic die cutting machine.
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| CN202011096356.1A CN112243056B (en) | 2020-10-14 | 2020-10-14 | Production method of multicolor seamless splicing leather sheath |
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| CN202011096356.1A CN112243056B (en) | 2020-10-14 | 2020-10-14 | Production method of multicolor seamless splicing leather sheath |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903964A (en) * | 2017-02-13 | 2017-06-30 | 佛山秋诺丝新材料科技有限公司 | A kind of preparation method of layer cloth seamless adhesion |
| CN109822921A (en) * | 2019-02-15 | 2019-05-31 | 深圳市合川智能科技有限公司 | A kind of woven fabric positioning scrap (bridge) technique of Leather cover for handset |
| CN110978380A (en) * | 2019-12-11 | 2020-04-10 | 东莞市昊通塑胶科技有限公司 | Process for manufacturing seamless combined double-layer or multi-layer decorative surface on surface of plastic shell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170050413A1 (en) * | 2015-08-19 | 2017-02-23 | Seng Tong Group (International) Brothers Investment Limited | Kind of production process for a fully covered leather sheath product |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903964A (en) * | 2017-02-13 | 2017-06-30 | 佛山秋诺丝新材料科技有限公司 | A kind of preparation method of layer cloth seamless adhesion |
| CN109822921A (en) * | 2019-02-15 | 2019-05-31 | 深圳市合川智能科技有限公司 | A kind of woven fabric positioning scrap (bridge) technique of Leather cover for handset |
| CN110978380A (en) * | 2019-12-11 | 2020-04-10 | 东莞市昊通塑胶科技有限公司 | Process for manufacturing seamless combined double-layer or multi-layer decorative surface on surface of plastic shell |
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