CN113580262A - Die cutting method and die cutting system for double-sided adhesive tape product containing multiple double-sided adhesive tape elements - Google Patents
Die cutting method and die cutting system for double-sided adhesive tape product containing multiple double-sided adhesive tape elements Download PDFInfo
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- CN113580262A CN113580262A CN202010361336.6A CN202010361336A CN113580262A CN 113580262 A CN113580262 A CN 113580262A CN 202010361336 A CN202010361336 A CN 202010361336A CN 113580262 A CN113580262 A CN 113580262A
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- Prior art keywords
- double
- sided adhesive
- adhesive tape
- protective film
- auxiliary protective
- Prior art date
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- 239000002390 adhesive tape Substances 0.000 title claims abstract description 173
- 238000005520 cutting process Methods 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 45
- 239000002699 waste material Substances 0.000 claims abstract description 102
- 230000001070 adhesive effect Effects 0.000 claims abstract description 92
- 239000000853 adhesive Substances 0.000 claims abstract description 91
- 230000001681 protective effect Effects 0.000 claims abstract description 88
- 238000004080 punching Methods 0.000 claims abstract description 50
- 239000012790 adhesive layer Substances 0.000 claims abstract description 42
- 238000007599 discharging Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims description 57
- 238000010030 laminating Methods 0.000 claims description 23
- 238000004804 winding Methods 0.000 claims description 18
- 239000010410 layer Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 128
- 239000000047 product Substances 0.000 description 71
- 239000000463 material Substances 0.000 description 18
- 239000010837 adhesive waste Substances 0.000 description 7
- 229920002799 BoPET Polymers 0.000 description 5
- 239000005041 Mylar™ Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 241000209140 Triticum Species 0.000 description 4
- 235000021307 Triticum Nutrition 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 239000002313 adhesive film Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000013039 cover film Substances 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
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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
Abstract
The invention relates to a die cutting method of a double-sided adhesive tape product containing a plurality of double-sided adhesive tape elements, which is characterized in that a carrier film, a handle film, a double-sided adhesive layer and a first auxiliary protective film are sequentially attached from bottom to top; punching a whole continuous pattern consisting of a product adhesive area and an adhesive area connecting sheet on the first auxiliary protective film and the double-sided adhesive layer by using 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; a second die cutting tool is adopted to perform blanking and punching on the second auxiliary protective film, the double-sided adhesive layer, the handle film and the connecting piece with the adhesive area on the carrier film; punching the whole outline of the double-sided adhesive tape product on the handle film by adopting a third die cutting tool; and discharging waste to obtain the double-sided adhesive tape product with the adhesive area connecting sheet. Compared with the prior art, the invention has the advantages of high product yield, no defect phenomenon in small glue areas, 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 tape product containing a plurality of double-sided adhesive tape elements.
Background
With the progress of technology, the thinner the mobile phone product is, the richer the functions on the mobile phone are, this is increasingly demanding for die cut pieces used on cell phones, and many die cut piece products, such as the double sided adhesive tape product shown in fig. 1 and 2, are becoming smaller in size, due to customer design requirements, in a product made of two pieces of double-sided adhesive tape, the hatched area in fig. 1 is a double-sided adhesive tape area, and one size is quite small, the width of the small adhesive tape area is 2MM, the prior die cutting process adopts a first die cutting tool as shown in fig. 3 to obtain the outline of each adhesive tape area by one-time die cutting, and when the die cutting method discharges waste materials of the double-sided adhesive tape, because the adhesive has viscosity and the width of the oval position is only 2MM, the double-sided adhesive tape at the oval position can be removed by waste discharge, as shown in fig. 9, the final product is scrapped due to shortage of material, and the reject ratio can reach as high as 60%. For products containing a plurality of adhesive zones, especially small adhesive zones with small sizes, how to improve the waste discharge yield of the small adhesive zones and avoid the discharge of the small adhesive zones along with waste materials is a problem to be solved urgently.
Disclosure of Invention
The present invention is directed to provide a method and a system for die cutting a double-sided adhesive tape product having a plurality of double-sided adhesive tape elements, so as to overcome the defect of the prior art that the double-sided adhesive tape element with a smaller size is not easy to waste.
The purpose of the invention can be realized by the following technical scheme:
a die cutting method of a double-sided adhesive tape product having a plurality of double-sided adhesive tape elements, the double-sided adhesive tape product comprising a handle film element and a plurality of double-sided adhesive tape elements attached to the handle film element and separated from each other, the die cutting 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 protective film to the double-sided adhesive layer; punching a whole continuous pattern consisting of a product adhesive area and an adhesive area connecting sheet on the first auxiliary protective film and the double-sided adhesive layer by using a first die cutting tool, wherein the product adhesive area is matched with the double-sided adhesive element in shape, and the adhesive area connecting sheet connects each separated product adhesive area into a whole;
(2) waste materials of the first auxiliary protective film and the double-sided adhesive layer are discharged, then the rest 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 the connecting piece with the adhesive area; punching the whole outline of the double-sided adhesive tape product on the handle film by adopting a third die cutting tool;
(3) and (3) discharging waste materials of the second auxiliary protective film, the double-sided adhesive layer and the handle film, and then discharging the rest second auxiliary protective film to obtain the double-sided adhesive tape product.
When the patterns of the double-sided adhesive tape element are punched at one time, the separated double-sided adhesive tape elements are connected into a whole through the designed connecting sheet with the adhesive area, and when the waste materials of the double-sided adhesive tape are required to be discharged, the small-sized double-sided adhesive tape element is still connected with the large-sized double-sided adhesive tape element, so that the small-sized double-sided adhesive tape element is stably adhered to a product material belt instead of being discharged along with the waste materials of the double-sided adhesive tape, the loss rate of the small-sized double-sided adhesive tape element is greatly reduced, and the product yield is improved.
During secondary punching, the double-sided adhesive tape with the adhesive area connecting sheet is directly blanked and punched by adopting a blanking and punching method, so that each double-sided adhesive tape element is obtained, the waste discharge problem of the 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 hollow part of the connecting sheet in the glue area can be left on the handle film of the final product, but the handle film element is only convenient for the final application of the double-sided adhesive tape product, the handle part of the handle film element is mainly relied on to play a role, and the hollow part left on the handle film element does not influence the final application 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 the blanking punching of the connecting sheet with the glue area and the punching of the whole outline are completed in one step; two die cutting tools are arranged on the same die cutting machine, one-step die cutting is realized, the die cutting machining efficiency is improved, and meanwhile, the product positioning step in the two-time die cutting process is also avoided, so that the machining precision is improved.
In the step (1), a first die cutting tool is used for continuously punching the first auxiliary protective film and the double-sided adhesive layer, and patterns obtained by two adjacent punching processes are connected end to end.
The patterns punched at two adjacent 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 difficult to displace relative to the carrier film, the processing precision is improved, the double-faced adhesive tape of the product area is difficult to be taken away by waste discharge, and the product yield is improved.
The double-sided adhesive tape element with the widest width along the feeding direction of the material belt is a main double-sided adhesive tape element, and the other double-sided adhesive tape elements are secondary double-sided adhesive tape elements; and connecting the patterns corresponding to the main double-sided adhesive element obtained by two adjacent punching processes end to end.
And (3) overlapping the partial outline of the handle film element and the main double-sided adhesive element, and 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 in the step (2).
And along the feeding direction of the material belt, the width of the connecting sheet with the adhesive area is 0.4-0.8 of the width of the secondary double-sided adhesive element.
The secondary double-sided adhesive tape element is of 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 2 mm.
The die cutting method is particularly suitable for products containing double-sided adhesive elements with small sizes, particularly products with the width of only 1-3 mm.
The invention also provides a die cutting system of a 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 film and the handle film, a double-sided adhesive tape base 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 product overall outline outer waste discharging mechanism, 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 of the material tape; and 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.
First supplementary protection film and double faced adhesive tape waste discharge mechanism include the first supplementary protection film wind-up roll that tears the first supplementary protection film of the position department of wasting discharge, will waste the wheat and draw the fifth laminating mechanism of laminating on the double faced adhesive tape of the position department of wasting discharge and will waste the wheat and draw, the double faced adhesive tape of waste material position department and the waste material wind-up roll that the first supplementary protection film of surplus tears.
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) holes are formed in the connecting sheet with the adhesive area of the handle film element of the double-sided adhesive tape product containing a plurality of double-sided adhesive tape elements, when one-time punching is carried out, all the double-sided adhesive tape elements are connected together to form a whole double-sided adhesive tape intermediate product, when the double-sided adhesive tape waste is discharged, the small-size double-sided adhesive tape element is still connected with the main body part of the double-sided adhesive tape, the small-size double-sided adhesive tape element is prevented from being taken away in the waste discharge process of the double-sided adhesive tape after one-time punching, and the product yield is improved;
(2) the secondary punching directly adopts a blanking punching mode to directly punch and blank the double-sided adhesive tape with the adhesive area connecting sheet, so that the small-size double-sided adhesive tape element is further prevented from being taken away by the double-sided adhesive tape with the adhesive area connecting sheet;
(3) one-time die-cut adoption is die-cut in succession, and the double faced adhesive tape in the product district of whole material area connects into a whole when wasting discharge, and the double faced adhesive tape position that leads to the product district when having avoided the double faced adhesive tape waste material to get rid of takes place to remove, has improved product machining precision.
Drawings
Fig. 1 is a schematic top view of a conventional double-sided adhesive tape product;
FIG. 2 is a schematic side view of a conventional double-sided tape product;
FIG. 3 is a schematic view illustrating a first die cutting blade according to a conventional die cutting method;
fig. 4 is a schematic diagram of punching layers of one-time punching in a conventional die-cutting method;
fig. 5 is a schematic structural diagram of a material tape obtained after one-time die cutting in a conventional die cutting method;
FIG. 6 is a schematic view showing a second die cutting blade according to the conventional die cutting method;
fig. 7 is a schematic diagram of punching layers of secondary punching in a conventional die-cutting method;
fig. 8 is a schematic structural diagram of a material strip obtained after secondary punching in a conventional die cutting method;
fig. 9 is a schematic structural view of the waste material belt obtained after the secondary punching in the existing die cutting method;
FIG. 10 is a schematic diagram of a prior art die cutting system;
FIG. 11 is a schematic structural view of a double-sided adhesive tape product of the present invention;
FIG. 12 is a schematic view showing a first die cutting blade in the die cutting method of the present invention;
FIG. 13 is a schematic view of die-cut levels of one die-cut in the die-cutting method of the present invention;
fig. 14 is a schematic structural view of a material tape obtained after one-time punching in the die-cutting method of the present invention;
FIG. 15 is a schematic view showing the construction of a second die-cutting tool and a second die-cutting prop in the die-cutting method of the present invention;
FIG. 16 is a schematic view of die-cut levels of a secondary die-cut in the die-cutting method of the present invention;
fig. 17 is a schematic structural view of a material tape obtained after secondary punching in the die-cutting method of the present invention;
FIG. 18 is a schematic structural view of a 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 tape element, 101 is a primary double-sided adhesive tape element, 102 is a secondary double-sided adhesive tape 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 film, 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 discharge area, 10 is a product adhesive area, 11 is an adhesive area connecting sheet, 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 adhesive base paper winding roller, 21 is a first auxiliary protective film feeding roller, 22 is a third attaching mechanism, 23 is a first auxiliary protective film winding roller, 24 is a first auxiliary die cutting machine and a double-sided adhesive waste discharging mechanism, 241 is a first waste winding roller, 242 is a first auxiliary protection film wind-up roll, 243 is a waste area first auxiliary protection film wind-up roll, 244 is a waste discharge mylar feed roll, 245 is a seventh laminating mechanism, 246 is a third waste material wind-up roll, 25 is a second auxiliary protection film feed roll, 26 is a fourth laminating mechanism, 27 is a second die cutting machine, 28 is a product overall contour outer waste material waste discharge mechanism, 29 is a second auxiliary protection film waste discharge mechanism, 291 is a waste discharge adhesive tape feed roll, 292 is a sixth laminating mechanism, 293 is a second waste material wind-up roll, 30 is a surface film covering feed roll, 31 is a fifth laminating mechanism, 32 is a finished product wind-up roll, 33 is an overall contour blade point punching layer, 34 is a rubber area connecting sheet and a round hole punching layer, 35 is an upper die frame, 36 is a lower die frame, 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 invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Comparative example
A die cutting method for double-sided adhesive tape products containing a plurality of double-sided adhesive tape elements is disclosed, the structure of the double-sided adhesive tape product is shown in figure 1 and figure 2, the double-sided adhesive tape product with adhesive area connecting sheets comprises a handle film element 2 and a plurality of double-sided adhesive tape elements 1 which are attached to the handle film element 2 with adhesive area connecting sheets and are separated from each other, wherein the double-sided adhesive tape elements 1 can be divided into a main double-sided adhesive tape element 101 with a longer width and a secondary double-sided adhesive tape element 102 with a shorter width according to the width of the double-sided adhesive tape elements 1 along the feeding direction of a material tape, and the left contour and the right contour and the contour below the main double-sided adhesive tape element 101 are superposed with the handle film element 2, so that the die cutting is convenient.
The existing die cutting method comprises the following steps:
(a) sequentially attaching the handle film 6 and the double-sided adhesive layer 5 to the carrier film 3 from bottom to top, and attaching the first auxiliary protective film 4 to the double-sided adhesive layer 5; using a first die cutting tool 12 shown in fig. 3 to punch a pattern of the double-sided adhesive element 1 on the first auxiliary protective film 4 and the double-sided adhesive layer 5 according to the punching level shown in fig. 4, punching a contour line on the surface of the handle film element 2, which is not coincident with the contour of the handle film element 2, for the main double-sided adhesive element 101, and punching all contour lines for the secondary double-sided adhesive element 102 to obtain a material belt shown in fig. 5, wherein the double-sided adhesive layer is divided into a double-sided adhesive product area 8 and a double-sided adhesive waste area 9, the shaded area in the figure is the double-sided adhesive waste area 9, when the double-sided adhesive at the shaded position of fig. 5 is arranged, due to the adhesive property and the width of the oval position being only 2MM, the waste discharge will drop the double-sided adhesive tape at the oval position, causing the final product to be scrapped, and the general reject ratio can be as high as 60%; when the waste is discharged, the first auxiliary protective film 4 corresponding to the double-sided adhesive waste discharge area 9 is attached to the waste discharge wheat pull on the double-sided adhesive waste discharge area 9, then the double-sided adhesive at the position of the double-sided adhesive waste discharge area 9 is torn off by tearing the waste discharge wheat pull, and meanwhile, the first auxiliary protective film 9 is torn off.
(b) A second auxiliary protective film 7 is attached to the double-sided adhesive layer 5; according to the punching level shown in fig. 7, the second die cutter 13 shown in fig. 6 is used to punch the whole outline of the double-sided adhesive tape product on the second auxiliary protective film 7, the double-sided adhesive layer 5 and the handle film 6, so as to obtain the tape shown in fig. 8, which is the waste discharge effect in an ideal state, but in the process, more than 60% of the adhesive area corresponding to the oval adhesive area and the secondary double-sided adhesive element in one punching is taken away in waste discharge, and actually, the structure of the finally obtained product tape after punching is shown in fig. 9, and a part of the secondary double-sided adhesive element 102 is lost 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 attaching mechanism 17 for attaching the carrier film 3 and the handle film 6, a double-sided adhesive tape feeding roller 18, a second attaching mechanism 19 for attaching the double-sided adhesive layer 5 and the handle film 6, a double-sided adhesive tape base paper winding roller 20, a first auxiliary protective film feeding roller 21, and a third attaching mechanism 22 for attaching 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 attaching mechanism 26 for attaching a second auxiliary protective film 7 and double-sided adhesive tape, a second die cutting machine 27, a product overall outline outer waste discharging mechanism 28, a second auxiliary protective film waste discharging mechanism 29, a surface covering film feeding roller 30 and a finished product winding roller 31; the first die cutting machine of the connecting sheet with the glue area 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 protective film and double-sided adhesive tape waste discharging mechanism 24 comprises a first auxiliary protective film winding roller 243 for a waste material area and a waste discharging mylar feeding roller 244 for tearing off a corresponding first auxiliary protective film 4 on the double-sided adhesive tape waste discharging area 9, a seventh attaching mechanism 245 for attaching the waste discharging mylar to the double-sided adhesive tape at the exposed double-sided adhesive tape waste discharging area 9, and a third waste material winding roller 246 for tearing off the waste discharging mylar, the double-sided adhesive tape waste and the remaining first auxiliary protective film. The second auxiliary protective film waste discharging mechanism 29 includes a waste discharging adhesive tape feed roller 291, a sixth attaching mechanism 292 for attaching the waste discharging adhesive tape to the second auxiliary protective film, and a second waste material winding roller 293 for tearing off the waste discharging adhesive tape and the second auxiliary protective film.
Examples
A die cutting method for double-sided adhesive tape products containing a plurality of double-sided adhesive tape elements is disclosed, the structure of the double-sided adhesive tape product is shown in figure 1 and figure 2, the double-sided adhesive tape product with adhesive area connecting sheets comprises a handle film element 2 and a plurality of double-sided adhesive tape elements 1 which are attached to the handle film element 2 with adhesive area connecting sheets and are separated from each other, wherein the double-sided adhesive tape elements 1 can be divided into a main double-sided adhesive tape element 101 with a longer width and a secondary double-sided adhesive tape element 102 with a shorter width according to the width of the double-sided adhesive tape elements 1 along the feeding direction of a material tape, and the left contour and the right contour and the contour below the main double-sided adhesive tape element 101 are superposed with the handle film element 2, so that the die cutting is convenient. Different from the comparative example, the handle membrane element 2 of the present embodiment does not have a through hole designed at the non-adhesive area where the double-sided adhesive element is attached, and the normal use of the product is not affected, because the handle membrane element 2 only provides a support carrier for the double-sided adhesive element 11, the double-sided adhesive element needs to be torn off when the customer uses the double-sided adhesive element, and the product only needs to ensure that the relative position and the size of the double-sided adhesive element meet the requirements.
The die cutting method comprises the following steps:
(a) sequentially attaching the handle film 6 and the double-sided adhesive layer 5 to the carrier film 3 from bottom to top, and attaching the first auxiliary protective film 4 to the double-sided adhesive layer 5; according to the punching level shown in fig. 13, a first die cutting tool 12 shown in fig. 12 is used for punching a whole continuous pattern consisting of a product adhesive area 10 and an adhesive area connecting sheet 11 on the adhesive area connecting sheet first auxiliary protective film 4 and the double-sided adhesive layer 5, wherein the product adhesive area 10 is matched with the adhesive area connecting sheet double-sided adhesive element 1 in shape, the adhesive area connecting sheet 11 connects the separated product adhesive areas 10 into a whole, and the adhesive area connecting sheet 11 is just positioned at the position of the handle film element 2, which is not attached to the non-adhesive area of the double-sided adhesive element, and corresponds to the through hole 201 of the non-adhesive area; and the first die cutting tool 12 is used for continuously punching the first auxiliary protective film 4 and the double-sided adhesive layer 5, patterns obtained by two adjacent punching are connected end to obtain a material belt structure as shown in figure 14, the double-sided adhesive layer is divided into a double-sided adhesive tape product area 8 and a double-sided adhesive tape waste area 9, the shadow area in the figure is the double-sided adhesive tape waste area 9, the double-sided adhesive tape product area 8 is a continuous whole, the secondary double-sided adhesive tape element still keeps an integral body with the main double-sided adhesive tape element, so that the double-sided adhesive tape waste of the double-sided adhesive tape waste area 9 is conveniently discharged, the double-sided adhesive layer corresponding to the double-sided adhesive tape waste area 9 and the first auxiliary protective film are directly torn off, the waste discharge is simple, the waste discharge Mylar is not needed any more, the process is simplified, and more importantly, because the secondary double-sided adhesive tape element still keeps an integral body with the main double-sided adhesive tape element, the problem that the double-sided adhesive tape waste material takes away the secondary double-sided adhesive tape element can not occur, the secondary adhesive element is stably retained on the tape.
(b) A second auxiliary protective film 7 is attached to the double-sided adhesive layer 5; according to the punching levels shown as the adhesive area connecting sheet and the round hole punching level 34 in fig. 16, 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 subjected to blanking and punching by using a second die cutter 13 shown in fig. 15. Wherein, along the feeding direction of the material belt, the width of the connecting sheet with glue area 11 is 0.6 of the width of the secondary double-sided adhesive element 12; simultaneously, punching the overall outline of the double-sided adhesive tape product on the handle film 6 by using a third die-cutting tool 14 according to the punching level shown as the overall outline blade punching level 33 in fig. 16; the second 13 and third 14 die cutting tools for the glue area connecting piece are mounted on the same die cutting machine, and the blanking and punching of the glue area connecting piece 11 and the whole outline of the glue area connecting piece are completed in one step, and the material belt shown in fig. 17 is obtained through punching in the step.
(c) The waste materials outside the overall product outline of the second auxiliary protective film 7 with the adhesive area connecting sheet, the double-sided adhesive layer 5 and the handle film 6 are integrally torn to remove waste, then waste discharge adhesive tapes are attached to the second auxiliary protective film 7 with the products on two sides, the rest second auxiliary protective film 7 is torn to remove waste discharge through the waste discharge adhesive tapes, then the double-sided adhesive element of the double-sided adhesive product is covered with the surface covering film as required, and finished products are rolled.
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 attaching mechanism 17 for attaching the carrier film 3 and the handle film 6, a double-sided adhesive tape feeding roller 18, a second attaching mechanism 19 for attaching the double-sided adhesive layer 5 and the handle film 6, a double-sided adhesive tape base paper winding roller 20, a first auxiliary protective film feeding roller 21, and a third attaching mechanism 22 for attaching 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 attaching mechanism 26 for attaching a second auxiliary protective film 7 and double-sided adhesive tape, a second die cutting machine 27, a product overall outline outer waste discharging mechanism 28, a second auxiliary protective film waste discharging mechanism 29, a surface covering film feeding roller 30 and a finished product winding roller 31; the first die cutting machine of the connecting sheet with the glue area 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 protective film and double-sided adhesive tape waste discharge mechanism 24 comprises a first waste material winding roller 241 for integrally removing waste materials outside the product overall outline of the second auxiliary protective film 7, the double-sided adhesive layer 5 and the handle film 6, and a first auxiliary protective film winding roller 242 for removing the rest first auxiliary protective film. The second auxiliary protective film waste discharging mechanism 29 includes a waste discharging adhesive tape feed roller 291, a sixth attaching mechanism 292 for attaching the waste discharging adhesive tape to the first auxiliary protective film on the product, and a second waste material winding roller 293 for tearing off the waste discharging adhesive tape and the first auxiliary protective film on the product.
The structure of the second die cutting machine is shown in fig. 19, and comprises an upper die carrier 35 and a lower die carrier 36, wherein the first die cutting tool and the third die cutting tool are arranged at a die cutting tool mounting position 37, and the lower die carrier 36 is provided with a blanking through hole for discharging waste materials such as the connecting sheet 11 with the glue area, which are blanked and punched by the second die cutting tool 13.
The method and apparatus of the present embodiment are particularly suitable for double-sided adhesive products having relatively small-sized secondary adhesive elements 102, the adhesive area connecting the secondary adhesive elements 12 being an elongated structure arranged along the feed direction of the web, the elongated structure having a width of 2 mm.
By adopting the die cutting method and the die cutting system, the problem that the small glue area is taken away by waste discharge 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 description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. A die-cutting method of a double-sided adhesive tape product having a plurality of double-sided adhesive tape elements, the double-sided adhesive tape product comprising a handle film element (2) and a plurality of double-sided adhesive tape elements (1) attached to the handle film element (2) and separated from each other, the die-cutting method comprising the steps of:
(a) sequentially attaching the handle film (6) and the double-sided adhesive layer (5) to the carrier film (3) from bottom to top, and attaching the first auxiliary protective film (4) to the double-sided adhesive layer (5); punching a whole continuous pattern consisting of a product adhesive area (10) and an adhesive area connecting sheet (11) on the first auxiliary protective film (4) and the double-sided adhesive layer (5) by using a first die cutting tool (12), wherein the product adhesive area (10) is matched with the double-sided adhesive element (1) in shape, and the adhesive area connecting sheet (11) connects the separated product adhesive 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 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 an adhesive area connecting sheet (11); punching out the whole outline of the double-sided adhesive tape product on the handle film (6) by adopting a third die cutting tool (14);
(c) and (3) 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 second auxiliary protective film (7) to obtain the double-sided adhesive tape product.
2. The method of claim 1, wherein in step (2), the second die cutter (13) and the third die cutter (14) are mounted on the same die cutter, and the blanking and the die cutting of the adhesive area connecting sheet (11) and the die cutting of the overall profile are performed in one step.
3. The die-cutting method for double-sided adhesive tape products containing multiple double-sided adhesive tape elements according to claim 1, wherein in the step (1), the first die-cutting tool (12) continuously punches on the first auxiliary protective film (4) and the double-sided adhesive layer (5), and patterns obtained by two adjacent punches are connected end to end.
4. A method for die-cutting a double-sided adhesive tape product comprising a plurality of double-sided adhesive tape elements, according to claim 3, wherein the double-sided adhesive tape element (1) having the widest width in the feed direction of the tape is the primary double-sided adhesive tape element (11), and the remaining double-sided adhesive tape elements are the secondary double-sided adhesive tape elements (12); patterns corresponding to the main double-sided adhesive element (11) obtained by two adjacent punching are connected end to end.
5. The method according to claim 4, wherein said handle film element (2) coincides with a partial outline of the main double-sided adhesive element (11), and said third die cutter (14) punches out an overall outline of the double-sided adhesive product on the second auxiliary protective film (7), the double-sided adhesive layer (5) and the handle film (6) in step (2).
6. Method for die-cutting a double-sided adhesive tape product comprising a plurality of double-sided adhesive tape elements according to claim 4, wherein the width of the adhesive area connecting tab (11) in the feed direction of the tape is 0.4 to 0.8 of the width of the secondary double-sided adhesive tape element (12).
7. Method for die-cutting a double-sided adhesive tape product comprising a plurality of double-sided adhesive tape elements according to claim 4, wherein said secondary double-sided adhesive tape elements (12) are elongated structures arranged along the feed direction of the web, the width of the elongated structures being 1-3 mm.
8. The method of claim 4, wherein the elongated structure has a width of 2 mm.
9. The die cutting system of the double-sided adhesive tape product containing the multiple double-sided adhesive tape elements according to claim 1, comprising a carrier film feeding roller (15), a handle film feeding roller (16), a first attaching mechanism (17) for attaching the carrier film (3) and the handle film (6), a double-sided adhesive tape feeding roller (18), a second attaching mechanism (19) for attaching the double-sided adhesive tape layer (5) and the handle film (6), a double-sided adhesive tape base paper winding roller (20), a first auxiliary protective film feeding roller (21), a third attaching mechanism (22) for attaching the first auxiliary protective film and the double-sided adhesive tape, a first die cutting machine (23), a first auxiliary protective film (4), a double-sided adhesive tape waste discharging mechanism (24), a second auxiliary protective film feeding roller (25), and a fourth attaching mechanism (26) for attaching the second auxiliary protective film (7) and the double-sided adhesive tape layer (5), A second die cutting machine (27), a waste discharging mechanism (28) for waste outside the whole outline of the product, a waste discharging mechanism (29) for a second auxiliary protective film, a surface covering film feeding roller (30), a fifth laminating mechanism for laminating the surface covering film and the double-sided adhesive layer and a finished product winding roller (31); 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. The die-cutting method of a double-sided adhesive tape product containing a plurality of double-sided adhesive tape elements according to claim 9, wherein the first auxiliary protective film and double-sided adhesive tape waste discharging mechanism (24) comprises a first waste material take-up roll (241) for tearing off the first auxiliary protective film (4) and the double-sided adhesive layer (5) at the waste discharging position and a first auxiliary protective film take-up roll (242) for tearing off the remaining first auxiliary protective film (4); the second auxiliary protective 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 and the second auxiliary protective film (7), and a second waste winding roller (293) for tearing off the waste discharging adhesive tape (291) and the second auxiliary protective film (7).
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