CN113580262B - Die cutting method and die cutting system for double-sided adhesive product containing multiple double-sided adhesive elements - Google Patents
Die cutting method and die cutting system for double-sided adhesive product containing multiple double-sided adhesive elements Download PDFInfo
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- CN113580262B CN113580262B CN202010361336.6A CN202010361336A CN113580262B CN 113580262 B CN113580262 B CN 113580262B CN 202010361336 A CN202010361336 A CN 202010361336A CN 113580262 B CN113580262 B CN 113580262B
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- 230000001070 adhesive effect Effects 0.000 title claims abstract description 140
- 239000000853 adhesive Substances 0.000 title claims abstract description 139
- 238000005520 cutting process Methods 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000002699 waste material Substances 0.000 claims abstract description 90
- 230000001681 protective effect Effects 0.000 claims abstract description 65
- 239000012790 adhesive layer Substances 0.000 claims abstract description 38
- 238000004080 punching Methods 0.000 claims abstract description 36
- 239000002390 adhesive tape Substances 0.000 claims description 62
- 230000007246 mechanism Effects 0.000 claims description 59
- 238000007599 discharging Methods 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 16
- 239000010837 adhesive waste Substances 0.000 claims description 14
- 102000008186 Collagen Human genes 0.000 claims description 5
- 108010035532 Collagen Proteins 0.000 claims description 5
- 229920001436 collagen Polymers 0.000 claims description 5
- 239000003292 glue Substances 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 125
- 239000000047 product Substances 0.000 description 70
- 238000010030 laminating Methods 0.000 description 31
- 239000013039 cover film Substances 0.000 description 5
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 4
- 229920002799 BoPET Polymers 0.000 description 3
- 239000005041 Mylar™ Substances 0.000 description 3
- 241000209140 Triticum Species 0.000 description 3
- 235000021307 Triticum Nutrition 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
-
- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/0004—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/02—Advancing webs by friction roller
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to a die cutting method of a double-sided adhesive product containing a plurality of double-sided adhesive elements, which sequentially attaches a carrier film, a handle film, a double-sided adhesive layer and a first auxiliary protective film from bottom to top; punching a whole continuous pattern formed by a product adhesive area and an adhesive area connecting sheet on the first auxiliary protective film and the double-sided adhesive layer by adopting a first die cutting tool, wherein the product adhesive area is matched with the double-sided adhesive element in shape, and the separated product adhesive area is connected into a whole by the adhesive area connecting sheet; attaching a second auxiliary protective film on the double-sided adhesive layer after waste discharge; blanking and punching the second auxiliary protective film, the double-sided adhesive layer, the handle film and the adhesive area connecting sheet on the carrier film by adopting a second die cutting tool; punching the whole outline of the double-sided adhesive product on the handle film by adopting a third die-cutting tool; and after the waste is discharged, a double-sided adhesive product with the adhesive area connecting sheet is obtained. Compared with the prior art, the invention has the advantages of high product yield, no missing phenomenon in a small glue area, simple waste discharge process and the like.
Description
Technical Field
The invention relates to the technical field of die cutting, in particular to a die cutting method and a die cutting system for a double-sided adhesive product containing a plurality of double-sided adhesive elements.
Background
Along with the progress of technology, the mobile phone products are thinner and the functions on the mobile phone are richer, the requirements on die-cut pieces used on the mobile phone are higher and higher, the sizes of a plurality of die-cut piece products are smaller, as shown in fig. 1 and 2, two pieces of double-sided tape are made in one product according to the design requirement of customers, the shadow area in fig. 1 is a double-sided tape area, the sizes are quite small, the width of the small tape area is 2MM, the outline of each tape area is obtained by one-time punching by adopting a first die-cutting tool in the prior die-cutting process as shown in fig. 3, when the double-sided tape waste is discharged, the width of the elliptic position is only 2MM, and the double-sided tape at the elliptic position is discarded due to the fact that the waste is discharged, as shown in fig. 9, the final product is scrapped due to shortage, and the general reject rate can reach 60%. For products containing a plurality of glue areas, especially small glue areas with smaller sizes, how to improve the waste discharge yield of the small glue areas and avoid the small glue areas from being discharged along with waste is a problem to be solved.
Disclosure of Invention
The invention aims to overcome the defect that the double-sided adhesive tape element with smaller size on the double-sided adhesive tape product containing a plurality of double-sided adhesive tape elements is not easy to waste, and provides a die cutting method and a die cutting system for the double-sided adhesive tape product containing the double-sided adhesive tape elements.
The aim of the invention can be achieved by the following technical scheme:
a method of die cutting a double-sided adhesive product comprising a plurality of double-sided adhesive elements, the double-sided adhesive product comprising a handle film element and a plurality of double-sided adhesive elements attached to the handle film element and separated from each other, the method comprising the steps of:
(1) Sequentially attaching the handle film and the double-sided adhesive layer to the carrier film from bottom to top, and attaching a first auxiliary protection film to the double-sided adhesive layer; punching a whole continuous pattern formed by a product glue area and a glue area connecting sheet on the first auxiliary protective film and the double-sided adhesive layer by adopting a first die cutting tool, wherein the product glue area is matched with the double-sided adhesive element in shape, and each separated product glue area is connected into a whole by the glue area connecting sheet;
(2) Waste materials of the first auxiliary protective film and the double-sided adhesive layer are discharged, then the rest of the first auxiliary protective film is discharged, and a second auxiliary protective film is attached to the double-sided adhesive layer; blanking and punching the second auxiliary protective film, the double-sided adhesive layer, the handle film and the carrier film by adopting a second die cutting tool, wherein the blanking part is die cutting waste at a connecting sheet with an adhesive area; punching the whole outline of the double-sided adhesive product on the handle film by adopting a third die-cutting tool;
(3) And discharging the waste materials of the second auxiliary protective film, the double-sided adhesive layer and the handle film, and then discharging the rest of the second auxiliary protective film to obtain the double-sided adhesive product.
When the patterns of the double-sided adhesive elements are punched at one time, the separated double-sided adhesive elements are connected into a whole through the designed adhesive area connecting sheet, and when double-sided adhesive waste is required to be discharged, the small-size double-sided adhesive elements are still connected with the large-size double-sided adhesive elements, so that the small-size double-sided adhesive elements are stably adhered to a product material belt, and are not discharged along with the double-sided adhesive waste, the defect rate of the small-size double-sided adhesive elements is greatly reduced, and the product yield is improved.
And during secondary punching, the double-sided adhesive tape with the adhesive area connecting sheet is directly punched by adopting a blanking punching method, so that each double-sided adhesive tape element is obtained, the problem of waste discharge of double-sided adhesive tape waste around the small-size double-sided adhesive tape element is not involved, and the problem that the small-size double-sided adhesive tape element is taken away by waste is avoided.
The handle film of the final product can be provided with the hollowed-out part of the adhesive area connecting sheet, but the handle film element is only convenient for the final lamination of the double-sided adhesive product, and mainly depends on the handle part of the handle film element to play a role, and the hollowed-out part left on the handle film element does not influence the final use of the product.
In the step (2), the second die cutting tool and the third die cutting tool are arranged on the same die cutting machine, and blanking and punching of the connecting sheet with the glue area and punching of the whole outline are completed in one step; two die cutting tools are arranged on the same die cutting machine, and the die cutting processing efficiency is improved by one step, and meanwhile, the product positioning step of the two die cutting processes is avoided, so that the processing precision is improved.
In the step (1), the first die cutting tool is used for continuously punching on the first auxiliary protective film and the double-sided adhesive layer, and the patterns obtained by adjacent punching are connected end to end.
The patterns punched for two times are connected end to end, so that the double faced adhesive tape of the product area on the whole material belt is kept as a whole, the double faced adhesive tape is not easy to displace relative to the carrier film, the processing precision is improved, the double faced adhesive tape of the product area is not easy to be discharged and taken away, and the product yield is improved.
The double-sided adhesive element with the widest width along the feeding direction of the material belt is a main double-sided adhesive element, and the rest double-sided adhesive elements are secondary double-sided adhesive elements; and the patterns corresponding to the main double-sided adhesive elements obtained by adjacent punching are connected end to end.
And (2) punching the whole outline of the double-sided adhesive product on the second auxiliary protective film, the double-sided adhesive layer and the handle film by the third die-cutting tool.
And the width of the adhesive area connecting sheet is 0.4-0.8 of the width of the secondary double-sided adhesive element along the feeding direction of the material belt.
The secondary double-sided adhesive element is a strip-shaped structure arranged along the feeding direction of the material belt, and the width of the strip-shaped structure is 1-3 mm.
The width of the strip-shaped structure is 2mm.
The die cutting method is particularly suitable for products containing double-sided adhesive elements with smaller sizes, and particularly for products with the width of only 1-3 mm.
The invention also provides a die cutting system of the double-sided adhesive tape product containing a plurality of double-sided adhesive tape elements, which comprises a carrier film feeding roller, a handle film feeding roller, a first laminating mechanism for laminating the carrier film and the handle film, a double-sided adhesive tape feeding roller, a second laminating mechanism for laminating the double-sided adhesive tape and the handle film, a double-sided collagen paper winding roller, a first auxiliary protective film feeding roller, a third laminating mechanism for laminating the first auxiliary protective film and the double-sided adhesive tape, a first die cutting machine, a first auxiliary protective film and double-sided adhesive tape waste discharging mechanism, a second auxiliary protective film feeding roller, a fourth laminating mechanism for laminating the second auxiliary protective film and the double-sided adhesive tape, a second die cutting machine, a waste discharging mechanism outside the whole outline of the product, a second auxiliary protective film waste discharging mechanism, a surface cover film feeding roller and a finished product winding roller which are sequentially arranged along the feeding direction; the first die cutting machine is provided with a first die cutting tool, and the second die cutting machine is provided with a second die cutting tool and a third die cutting tool.
The first auxiliary protection film and double faced adhesive tape waste discharging mechanism comprises a first auxiliary protection film winding roller for tearing off the first auxiliary protection film at a waste discharging position, a fifth attaching mechanism for attaching the waste discharging wheat to the double faced adhesive tape at the waste discharging position, and a waste winding roller for tearing off the waste discharging wheat, the double faced adhesive tape at the waste discharging position and the residual first auxiliary protection film.
The first laminating mechanism, the second laminating mechanism, the third laminating mechanism, the fourth laminating mechanism, the fifth laminating mechanism and the sixth laminating mechanism are all rolling laminating machines.
Compared with the prior art, the invention has the following advantages:
(1) The handle film element of the double-sided adhesive product containing a plurality of double-sided adhesive elements is provided with the adhesive area connecting sheet, when the double-sided adhesive product is punched once, all the double-sided adhesive elements are connected together to form a whole double-sided adhesive intermediate product, when double-sided adhesive waste is discharged, the small-size double-sided adhesive element is still connected with the double-sided adhesive main body part, so that the small-size double-sided adhesive element is prevented from being taken away in the waste discharge process of the double-sided adhesive after punching, and the product yield is improved;
(2) The secondary punching is directly performed in a blanking punching mode, and double-sided adhesive with the adhesive area connecting sheet is directly punched and blanked, so that the small-size double-sided adhesive element is further prevented from being taken away by the double-sided adhesive with the adhesive area connecting sheet;
(3) The continuous punching is adopted in one punching, and the double faced adhesive tape of the product area of the whole material tape is connected into a whole during waste discharge, so that the position of the double faced adhesive tape in the product area is prevented from moving during waste discharge of the double faced adhesive tape, and the processing precision of the product is improved.
Drawings
FIG. 1 is a schematic top view of a conventional double-sided tape product;
FIG. 2 is a schematic side view of a conventional double-sided adhesive product;
FIG. 3 is a schematic view of a first die cutter in a conventional die cutting method;
FIG. 4 is a schematic drawing of a die-cut layer of a one-shot die-cut in a prior art die-cut method;
FIG. 5 is a schematic view of a structure of a material strip obtained after one-time punching in a conventional die-cutting method;
FIG. 6 is a schematic view of a second die cutter in a conventional die cutting method;
FIG. 7 is a schematic drawing of a die-cut hierarchy of a secondary die-cut in a prior art die-cutting process;
FIG. 8 is a schematic view of a structure of a material strip obtained after secondary punching in a conventional die-cutting method;
FIG. 9 is a schematic diagram of a structure of a material strip obtained after secondary punching in a conventional die-cutting method after waste discharge;
FIG. 10 is a schematic diagram of a prior art die cutting system;
FIG. 11 is a schematic structural view of a double-sided tape product of the present invention;
FIG. 12 is a schematic view showing the structure of a first die cutter in the die cutting method of the present invention;
FIG. 13 is a schematic drawing of a die-cut hierarchy of a one-shot die-cut in the die-cutting method of the present invention;
FIG. 14 is a schematic view of the structure of a material strip obtained after one die-cutting in the die-cutting method of the present invention;
FIG. 15 is a schematic view of the construction of a second die cutter and a second die prop in the die cutting method of the present invention;
FIG. 16 is a schematic drawing of a die cut hierarchy of a secondary die cut in the die cut method of the present invention;
FIG. 17 is a schematic view of the structure of a web obtained after secondary die cutting in the die cutting method of the present invention;
FIG. 18 is a schematic view of the die cutting system of the present invention;
FIG. 19 is a schematic view of a die cutting machine;
in the figure, 1 is a double-sided adhesive element, 101 is a main double-sided adhesive element, 102 is a secondary double-sided adhesive element, 2 is a handle film element, 201 is a through hole, 3 is a carrier film, 4 is a first auxiliary protective film, 5 is a double-sided adhesive layer, 6 is a handle film, 7 is a second auxiliary protective film, 8 is a double-sided adhesive product area, 9 is a double-sided adhesive waste discharging area, 10 is a product adhesive area, 11 is a adhesive area connecting piece, 12 is a first die-cutting tool, 13 is a second die-cutting tool, 14 is a third die-cutting tool, 15 is a carrier film feeding roller, 16 is a handle film feeding roller, 17 is a first attaching mechanism, 18 is a double-sided adhesive feeding roller, 19 is a second attaching mechanism, 20 is a double-sided collagen paper winding roller, 21 is a first auxiliary protective film feeding roller, 22 is a third attaching mechanism, 23 is a first die-cutting machine, 24 is a first auxiliary protective film and a double-sided adhesive waste discharging mechanism, 241 is a first waste wind-up roll, 242 is a first auxiliary protective film wind-up roll, 243 is a waste area first auxiliary protective film wind-up roll, 244 is a waste discharging Mylar feed roll, 245 is a seventh attaching mechanism, 246 is a third waste wind-up roll, 25 is a second auxiliary protective film feed roll, 26 is a fourth attaching mechanism, 27 is a second die-cutting machine, 28 is a product whole contour waste discharging mechanism, 29 is a second auxiliary protective film waste discharging mechanism, 291 is a waste discharging adhesive tape feed roll, 292 is a sixth attaching mechanism, 293 is a second waste wind-up roll, 30 is a surface cover film feed roll, 31 is a fifth attaching mechanism, 32 is a finished product wind-up roll, 33 is a whole contour blade punching layer, 34 is a rubber area connecting sheet and round hole punching layer, 35 is an upper die frame, 36 is a lower die-cutting tool mounting position, 37 is a die-cutting tool mounting position, and 38 is a blanking through hole.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
Comparative example
The structure of the double faced adhesive tape product is shown in fig. 1 and 2, the double faced adhesive tape product with the adhesive area connecting sheet comprises a handle film element 2 and a plurality of double faced adhesive tape elements 1 which are attached to the handle film element 2 with the adhesive area connecting sheet and are mutually separated, wherein the double faced adhesive tape elements 1 can be divided into a main double faced adhesive tape element 101 with longer width and a secondary double faced adhesive tape element 102 with shorter width according to the width of the double faced adhesive tape elements along the feeding direction of a material, and the left and right outlines of the main double faced adhesive tape element 101 and the outline positioned below are overlapped with the handle film element 2, so that the double faced adhesive tape elements are convenient to die cut.
The existing die cutting method comprises the following steps:
(a) Sequentially attaching a handle film 6 and a double-sided adhesive layer 5 to the carrier film 3 from bottom to top, and attaching a first auxiliary protective film 4 to the double-sided adhesive layer 5; the first die cutting tool 12 shown in fig. 3 is adopted to die-cut patterns of double-sided adhesive elements 1 on a first auxiliary protective film 4 and a double-sided adhesive layer 5 according to a die-cutting hierarchy shown in fig. 4, contour lines which are not overlapped with the contour of the handle film element 2 on the surface of the handle film element 2 are die-cut for a main double-sided adhesive element 101, all contour lines are die-cut for a secondary double-sided adhesive element 102 to obtain a material belt shown in fig. 5, the double-sided adhesive layer is divided into a double-sided adhesive product area 8 and a double-sided adhesive waste discharging area 9, a shadow area in the figure is the double-sided adhesive waste discharging area 9, when the double-sided adhesive at the shadow position of fig. 5 is discharged, the double-sided adhesive tape at the elliptic position is discharged due to the adhesive property, and the double-sided adhesive tape at the elliptic position is discharged, so that the final unfilled material is scrapped, and the general reject rate can reach 60%; when waste is discharged, the corresponding first auxiliary protection film 4 on the double-sided tape waste discharge area 9 is attached to the waste discharge Mylar on the double-sided tape waste discharge area 9, then the double-sided tape at the double-sided tape waste discharge area 9 is torn off by tearing off the waste discharge Mylar, and meanwhile, the first auxiliary protection film 9 is torn off.
(b) Attaching a second auxiliary protective film 7 on the double-sided adhesive layer 5; according to the punching hierarchy shown in fig. 7, the whole outline of the double sided tape product is punched on the second auxiliary protective film 7, the double sided tape 5 and the handle film 6 by adopting the second die cutting tool 13 shown in fig. 6, so as to obtain a material tape shown in fig. 8, wherein the material tape is an ideal waste discharge effect, but more than 60% of the glue area corresponding to the double sided tape element in the elliptical glue area is taken away in waste discharge during one punching, and the structure of the finally obtained product material tape is actually shown in fig. 9, and part of the double sided tape element 102 is missing on the final product.
The die-cutting system corresponding to the die-cutting process is shown in fig. 10, and comprises a carrier film feeding roller 15, a handle film feeding roller 16, a first laminating mechanism 17 for laminating the carrier film 3 and the handle film 6, a double-sided adhesive tape feeding roller 18, a second laminating mechanism 19 for laminating the double-sided adhesive tape 5 and the handle film 6, a double-sided collagen paper winding roller 20, a first auxiliary protective film feeding roller 21, a third laminating mechanism 22 for laminating the first auxiliary protective film feeding roller and the double-sided adhesive tape, a first die-cutting machine 23, a first auxiliary protective film and double-sided adhesive tape waste discharging mechanism 24, a second auxiliary protective film feeding roller 25, a fourth laminating mechanism 26 for laminating the second auxiliary protective film 7 and the double-sided adhesive tape, a second die-cutting machine 27, a waste discharging mechanism 28 outside the whole contour of the product, a second auxiliary protective film waste discharging mechanism 29, a surface cover film feeding roller 30 and a finished product winding roller 31 which are sequentially arranged along the feeding direction of the material belt; the first die cutting machine with the adhesive area connecting sheet is provided with a first die cutting tool 12, and the second die cutting machine 27 is provided with a second die cutting tool 13 and a third die cutting tool 14.
The first auxiliary protection film and double-sided tape waste discharging mechanism 24 comprises a waste material area first auxiliary protection film winding roller 243 for tearing off the corresponding first auxiliary protection film 4 on the double-sided tape waste discharging area 9, a waste material discharging mailer feeding roller 244, a seventh attaching mechanism 245 for attaching the waste material to the double-sided tape at the exposed double-sided tape waste discharging area 9, and a third waste material winding roller 246 for tearing off the waste material discharging mailer, double-sided tape waste and the residual first auxiliary protection film. The second auxiliary protection film waste discharging mechanism 29 includes a waste discharge tape feeding roller 291, a sixth attaching mechanism 292 that attaches the waste discharge tape to the second auxiliary protection film, and a second waste take-up roller 293 that tears off the waste discharge tape and the second auxiliary protection film.
Examples
The structure of the double faced adhesive tape product is shown in fig. 1 and 2, the double faced adhesive tape product with the adhesive area connecting sheet comprises a handle film element 2 and a plurality of double faced adhesive tape elements 1 which are attached to the handle film element 2 with the adhesive area connecting sheet and are mutually separated, wherein the double faced adhesive tape elements 1 can be divided into a main double faced adhesive tape element 101 with longer width and a secondary double faced adhesive tape element 102 with shorter width according to the width of the double faced adhesive tape elements along the feeding direction of a material, and the left and right outlines of the main double faced adhesive tape element 101 and the outline positioned below are overlapped with the handle film element 2, so that the double faced adhesive tape elements are convenient to die cut. Unlike the comparative example, the handle film element 2 of the present embodiment is not attached to the non-adhesive area of the double-sided tape element, and a through hole is designed, so that normal use of the product is not affected, because the handle film element 2 only provides a supporting carrier for the double-sided tape element 11, when the customer uses the double-sided tape element, the customer only needs to tear off the double-sided tape element, and the product only needs to ensure that the relative position and the size of the double-sided tape element meet the requirements.
The die cutting method comprises the following steps:
(a) Sequentially attaching a handle film 6 and a double-sided adhesive layer 5 to the carrier film 3 from bottom to top, and attaching a first auxiliary protective film 4 to the double-sided adhesive layer 5; according to the punching hierarchy shown in fig. 13, a first die cutting tool 12 shown in fig. 12 is adopted to punch out a whole continuous pattern formed by a product rubberized area 10 and a rubberized area connecting sheet 11 on a rubberized area connecting sheet first auxiliary protective film 4 and a double-sided adhesive layer 5, wherein the product rubberized area 10 is matched with the rubberized area connecting sheet double-sided adhesive element 1 in shape, the rubberized area connecting sheet 11 connects each separated product rubberized area 10 into a whole, the rubberized area connecting sheet 11 is just positioned at a position of a handle film element 2 which is not attached with the double-sided adhesive element, and corresponds to a through hole 201 of the non-rubberized area; and the first die cutting tool 12 is continuously punched on the first auxiliary protection film 4 and the double-sided adhesive layer 5, the patterns obtained by adjacent punching are connected end to end, the material belt structure shown in fig. 14 is obtained, the double-sided adhesive layer is divided into a double-sided adhesive product area 8 and a double-sided adhesive waste discharging area 9, the shadow area in the figure is the double-sided adhesive waste discharging area 9, the double-sided adhesive product area 8 is a continuous whole, the secondary double-sided adhesive element is still kept as a whole with the main double-sided adhesive element, the double-sided adhesive waste discharging of the double-sided adhesive waste discharging area 9 is convenient, the double-sided adhesive layer and the first auxiliary protection film corresponding to the double-sided adhesive waste discharging area 9 can be directly torn off, waste discharging is simple, no waste discharging wheat pulling is needed, the process is simplified, and more importantly, the secondary double-sided adhesive element can be stably kept on the material belt because the secondary double-sided adhesive element is still kept as a whole with the main double-sided adhesive element, and the problem that the secondary double-sided adhesive element is taken away by the double-sided adhesive waste is avoided.
(b) Attaching a second auxiliary protective film 7 on the double-sided adhesive layer 5; the second auxiliary protective film 7, the double-sided adhesive layer 5, the handle film 6 and the adhesive area connecting sheet 11 on the carrier film 3 are blanked by using a second die cutter 13 as shown in fig. 15 according to the die cutting level shown by the adhesive area connecting sheet and the round hole die cutting level 34 in fig. 16. Wherein the width of the adhesive area connecting sheet 11 of the adhesive area connecting sheet is 0.6 of the width of the secondary double-sided adhesive element 12 along the feeding direction of the material belt; simultaneously, the third die-cutting tool 14 is adopted to die-cut the whole outline of the double-sided adhesive product on the handle film 6 according to the die-cutting level shown as the whole outline knife point die-cutting level 33 in fig. 16; the second die-cutting tool 13 and the third die-cutting tool 14 with the adhesive area connecting sheet are arranged on the same die-cutting machine, blanking and punching of the adhesive area connecting sheet 11 with the adhesive area connecting sheet and punching of the whole outline are completed in one step, and the step of punching obtains a material belt shown in figure 17.
(c) And (3) tearing off waste materials outside the whole outline of the product with the adhesive area connecting piece second auxiliary protective film 7, the double-sided adhesive layer 5 and the handle film 6, attaching a waste discharge adhesive tape to the second auxiliary protective film 7 with the double-sided product, tearing off the residual second auxiliary protective film 7 through the waste discharge adhesive tape, covering a surface cover film on the double-sided adhesive element of the double-sided adhesive product as required, and rolling the finished product.
The die-cutting system corresponding to the die-cutting process is shown in fig. 18, and comprises a carrier film feeding roller 15, a handle film feeding roller 16, a first laminating mechanism 17 for laminating the carrier film 3 and the handle film 6, a double-sided adhesive tape feeding roller 18, a second laminating mechanism 19 for laminating the double-sided adhesive tape 5 and the handle film 6, a double-sided collagen paper winding roller 20, a first auxiliary protective film feeding roller 21, a third laminating mechanism 22 for laminating the first auxiliary protective film and the double-sided adhesive tape, a first die-cutting machine 23, a first auxiliary protective film and double-sided adhesive tape waste discharging mechanism 24, a second auxiliary protective film feeding roller 25, a fourth laminating mechanism 26 for laminating the second auxiliary protective film 7 and the double-sided adhesive tape, a second die-cutting machine 27, a waste discharging mechanism 28 outside the whole outline of the product, a second auxiliary protective film waste discharging mechanism 29, a surface cover film feeding roller 30 and a finished product winding roller 31, which are sequentially arranged along the feeding direction of the material tape; the first die cutting machine with the adhesive area connecting sheet is provided with a first die cutting tool 12, and the second die cutting machine 27 is provided with a second die cutting tool 13 and a third die cutting tool 14.
The first auxiliary protection film and double sided tape waste discharging mechanism 24 includes a first waste winding roller 241 for integrally removing waste outside the product overall outline of the second auxiliary protection film 7, double sided tape 5 and handle film 6, and a first auxiliary protection film winding roller 242 for removing the remaining first auxiliary protection film. The second auxiliary protection film discharging mechanism 29 includes a waste tape feeding roller 291, a sixth bonding mechanism 292 that bonds the waste tape to the first auxiliary protection film on the product, and a second waste take-up roller 293 that tears off the waste tape and the first auxiliary protection film on the product.
The structure of the adopted second die-cutting machine is shown in fig. 19, and comprises an upper die-cutting die holder 35 and a lower die-cutting die holder 36, wherein the first die-cutting die holder and the third die-cutting die holder are arranged at a die-cutting tool mounting position 37, and a blanking through hole is formed in the lower die-cutting die holder 36 for discharging waste materials such as a rubber area connecting sheet 11 and the like which are blanked and punched by the second die-cutting die holder 13.
The method and apparatus of this embodiment are particularly suited for double sided adhesive products having smaller sized secondary double sided adhesive elements 102, with the adhesive area connecting the sheet of secondary double sided adhesive elements 12 being an elongated structure having a width of 2mm arranged along the feed direction of the web.
By adopting the die cutting method and the die cutting system, the problem that the waste is discharged and the small glue area is taken away is completely avoided for the small glue area with the width of only 2MM, and the product yield and the die cutting efficiency are improved.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (10)
1. A method of die cutting a double-sided adhesive product comprising a plurality of double-sided adhesive elements, the double-sided adhesive product comprising a handle film element (2) and a plurality of double-sided adhesive elements (1) attached to the handle film element (2) and separated from each other, characterized in that the die cutting method comprises the steps of:
(a) Sequentially attaching a handle film (6) and a double-sided adhesive layer (5) to the carrier film (3) from bottom to top, and attaching a first auxiliary protection film (4) to the double-sided adhesive layer (5); punching out a whole continuous pattern formed by a product rubberized area (10) and a rubberized area connecting sheet (11) on the first auxiliary protective film (4) and the double-sided adhesive layer (5) by adopting a first die cutting tool (12), wherein the product rubberized area (10) is matched with the shape of the double-sided adhesive element (1), and the rubberized area connecting sheet (11) connects all the separated product rubberized areas (10) into a whole;
(b) Waste materials of the first auxiliary protective film (4) and the double-sided adhesive layer (5) are discharged, then the rest of the first auxiliary protective film (4) is discharged, and a second auxiliary protective film (7) is attached to the double-sided adhesive layer (5); blanking and punching a second auxiliary protective film (7), a double-sided adhesive layer (5), a handle film (6) and a carrier film (3) by adopting a second die cutting tool (13), wherein the blanking part is die cutting waste at a connecting sheet (11) with an adhesive area; punching the whole outline of the double-sided adhesive product on the handle film (6) by adopting a third die-cutting tool (14);
(c) And discharging the waste materials of the second auxiliary protective film (7), the double-sided adhesive layer (5) and the handle film (6), and then discharging the rest of the second auxiliary protective film (7) to obtain the double-sided adhesive product.
2. A method of die cutting a double sided adhesive product comprising a plurality of double sided adhesive elements according to claim 1, wherein in step (b), the second die cutter (13) and the third die cutter (14) are mounted on the same die cutter, and blanking die cutting and die cutting of the adhesive area connecting sheet (11) and overall profile die cutting are completed in one step.
3. A method of die cutting a double sided tape product comprising a plurality of double sided tape elements according to claim 1, wherein in step (a) the first die cutting tool (12) performs continuous die cutting on the first auxiliary protective film (4) and the double sided tape (5), and the patterns obtained by adjacent die cutting are connected end to end.
4. A method of die cutting a double sided adhesive product comprising a plurality of double sided adhesive elements as claimed in claim 3, wherein the double sided adhesive element (1) having the widest width in the feeding direction of the web is the primary double sided adhesive element (101) and the remaining double sided adhesive elements are the secondary double sided adhesive elements (102); the patterns corresponding to the main double-sided adhesive elements (101) obtained by punching two adjacent times are connected end to end.
5. A method of die cutting a double sided adhesive product comprising a plurality of double sided adhesive elements according to claim 4, wherein the handle film element (2) coincides with a partial contour of the main double sided adhesive element (101), and the third die cutting tool (14) in step (b) punches out the integral contour of the double sided adhesive product on the second auxiliary protective film (7), the double sided adhesive layer (5) and the handle film (6).
6. The method for die cutting a double-sided tape product comprising a plurality of double-sided tape elements according to claim 4, wherein the width of the tape area connecting sheet (11) is 0.4-0.8 of the width of the secondary double-sided tape element (102) along the feeding direction of the tape.
7. The method of die cutting a double sided adhesive product comprising a plurality of double sided adhesive elements according to claim 4, wherein the secondary double sided adhesive element (102) is a strip-shaped structure arranged along the feeding direction of the material tape, and the width of the strip-shaped structure is 1-3 mm.
8. The method of die cutting a double sided tape product comprising a plurality of double sided tape elements according to claim 7, wherein the width of the elongated structure is 2mm.
9. A die cutting system for double-sided adhesive products, which is characterized by being used for executing the die cutting method for double-sided adhesive products containing a plurality of double-sided adhesive elements as in claim 1, wherein the die cutting system comprises a carrier film feeding roller (15), a handle film feeding roller (16), a first attaching mechanism (17) for attaching a carrier film (3) and a handle film (6), a double-sided adhesive feeding roller (18), a second attaching mechanism (19) for attaching a double-sided adhesive layer (5) and the handle film (6), a double-sided collagen paper winding roller (20), a first auxiliary protective film feeding roller (21), a third attaching mechanism (22) for attaching a first auxiliary protective film and a double-sided adhesive, a first die cutting machine (23), a first auxiliary protective film (4) and a double-sided adhesive waste discharging mechanism (24), a second auxiliary protective film feeding roller (25), a fourth attaching mechanism (26) for attaching a second auxiliary protective film (7) and the double-sided adhesive layer (5), a second die cutting machine (27), a product whole waste contour outer contour mechanism (28), a second auxiliary protective film discharging mechanism (29), a double-sided adhesive discharging mechanism (31) and a finished product winding mechanism (31) which are attached to the surfaces of the double-sided adhesive discharging mechanism; the first die cutting machine is provided with a first die cutting tool (12), and the second die cutting machine (27) is provided with a second die cutting tool (13) and a third die cutting tool (14).
10. A die cutting system for double sided tape products according to claim 9, said first auxiliary protection film and double sided tape waste discharging mechanism (24) comprising a first waste take-up roll (241) for tearing off the first auxiliary protection film (4) and double sided tape (5) at the waste discharging position and a first auxiliary protection film take-up roll (242) for tearing off the remaining first auxiliary protection film (4); the second auxiliary protection film waste discharging mechanism (29) comprises a waste discharging adhesive tape feeding roller (291), a sixth attaching mechanism (292) for attaching the waste discharging adhesive tape to the second auxiliary protection film (7) and a second waste winding roller (293) for tearing the waste discharging adhesive tape from the second auxiliary protection film (7).
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| CN114603640B (en) * | 2021-11-22 | 2023-07-28 | 郑州领胜科技有限公司 | Coiled material one-line flow die cutting method |
| CN114632858B (en) * | 2022-04-26 | 2024-03-15 | 东莞六淳智能科技股份有限公司 | Double-sided rubberizing module for steel sheet stamping |
| CN114701012A (en) * | 2022-05-10 | 2022-07-05 | 东莞六淳智能科技股份有限公司 | Asynchronous processing technology of graphene sponge |
| CN114953037B (en) * | 2022-05-16 | 2024-01-26 | 深圳市通泰盈科技股份有限公司 | Die cutting method and die cutting system for easy-to-draw adhesive for battery |
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