A long strip aluminum foil tape flat die-cutting process

Abstract

The present invention provides a flat die-cutting process for long strips of aluminum foil tape, which makes the edges of the long strips of aluminum foil flat after die-cutting, ensuring the aesthetics of the products to be used in subsequent application. The process is characterized in that: a. two layers of protective films are stacked and laid along the production line in advance; b. positioning holes are punched out on the double-layer protective film by a first roller cutter and a first steel roller; c. the aluminum foil roll is laid on the upper surface of the upper protective film through a feed roller and a second steel roller; d. a process release film is compounded on the upper surface of the self-contained film by a group of composite rollers; e. the aluminum foil tape is then die-cut by a second roller cutter to form long strips of aluminum foil of a set width, with a spacing width between adjacent long strips of aluminum foil; f. the spacing width is discharged as waste by winding; g. the surface of the entire die-cut product is then covered with a release film; h. the entire product is passed through the pressing space formed by the upper steel roller and the lower steel roller, and the edges of the long strips of aluminum foil are made flat by the pressing force of the upper steel roller and the lower steel roller.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum foil die-cutting, and in particular to a flat die-cutting process for a long strip of aluminum foil tape. Background Art

[0002] Long strips of aluminum foil tape need to be attached to the surface of steel sheet products. Prior to this, the rolled aluminum foil tape needs to be cut into long strips of aluminum foil tape by die cutting. In the prior art, in order to ensure the size of the product, the long strips of aluminum foil are formed by one die cutting. During die cutting, the knife wall will squeeze the product, resulting in wrinkles on the edges of the long strips of aluminum foil. After the long strips of aluminum foil are attached to the surface of the steel sheet product, obvious folds will be generated on the edges of the wrinkles and the surface of the steel sheet product. Therefore, a die cutting process is urgently needed to make the edges of the long strips of aluminum foil smooth after die cutting. Summary of the invention

[0003] In view of the above problems, the present invention provides a process for smooth die-cutting of long strips of aluminum foil tape, which makes the edges of the long strips of aluminum foil smooth after die-cutting, thereby ensuring the aesthetics of the products subsequently applied and used.

[0004] A flat die-cutting process for long strips of aluminum foil tape, characterized in that:

[0005] a. Lay two layers of protective film in advance along the production line;

[0006] b. Then, the first roller cutter and the first steel roller are used to punch out positioning holes on the double-layer protective film;

[0007] c. Laying the aluminum foil roll on the upper surface of the upper protective film through the feeding roller and the second steel roller, so that the single-sided adhesive layer of the aluminum foil roll is arranged upward, and a self-contained film is arranged on the single-sided adhesive layer;

[0008] d. Then, a set of composite rollers are used to composite a process release film on the upper surface of the self-contained film;

[0009] e. Then the aluminum foil strip is die-cut by a second roller cutter to form long strips of aluminum foil of a set width, and a spacing width is left between adjacent long strips of aluminum foil;

[0010] The width of the interval f is treated as waste and discharged through winding;

[0011] After that, the entire die-cut product surface is covered with a release film;

[0012] h The entire product passes through the pressing space formed by the upper steel roller and the lower steel roller, and the edge of the long aluminum foil is flattened by the pressing force of the upper steel roller and the lower steel roller.

[0013] It is further characterized by:

[0014] In step e, the second roller cutter will not cut the upper protective film and will not cut the lower protective film. After the second roller cutter completes die-cutting, the lower protective film is rolled up, so that the lower protective film can be used again as a protective film for subsequent die-cutting.

[0015] In step f, waste materials on both sides of the aluminum foil roll in the width direction are discharged at the same time;

[0016] After step h, the upper protective film is rolled up by a receiving roller, so that the subsequent long strip of aluminum foil can be used by peeling off the upper film;

[0017] The long strip of aluminum foil is cut into a set length by a cutting knife at the rear and then rolled up;

[0018] The thickness of the adhesive layer on one side of the long aluminum foil is 0.085 mm;

[0019] The width of the long strip of aluminum foil is 1.85 mm;

[0020] The interval width is 0.15 mm, which ensures that the waste material will not be broken when it is rolled up;

[0021] The upper steel roller and the lower steel roller are the same steel rollers, which are solid steel shafts, ensuring easy manufacturing and uniform and reliable force;

[0022] All composite roll sets are rolls of the same diameter and run at the same speed.

[0023] After adopting the present invention, the aluminum foil strip is die-cut by the second roller cutter to form long aluminum foil strips of set width, and a spacing width is left between adjacent long aluminum foil strips, and then the spacing width is discharged, so that the edges of adjacent long aluminum foil strips will no longer be hard squeezed during die-cutting, and there is a free deformation space, and the cut long aluminum foil strips pass through the pressing space formed by the upper steel roller and the lower steel roller, and the edges of the long aluminum foil strips are flattened by the pressing force of the upper steel roller and the lower steel roller, which makes the edges of the long aluminum foil strips flat after die-cutting, ensuring the aesthetics of the products that are subsequently pasted and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a schematic diagram of the process flow. DETAILED DESCRIPTION

[0025] A flat die-cutting process for a long strip of aluminum foil tape. After the die-cutting is completed, the thickness of the single-sided adhesive layer of the long strip of aluminum foil is 0.085 mm, and the width of the long strip of aluminum foil is 1.85 mm.

[0026] For specific implementation, see Figure 1 , which comprises the following steps:

[0027] a. Lay the upper protective film and the lower protective film in advance along the production line to form a double-layer protective film;

[0028] b. Then, positioning holes are punched out on the double-layer protective film by the first roller cutter 1 and the first steel roller 2, so as to facilitate die-cutting positioning in the subsequent process;

[0029] c. Lay the aluminum foil roll on the upper surface of the upper protective film through the feed roller 3 and the second steel roller 4, so that the single-sided adhesive layer of the aluminum foil roll is arranged upward, and a self-contained film is provided on the single-sided adhesive layer;

[0030] d. Then, a set of composite rollers 5 are used to composite a process release film on the upper surface of the self-contained film;

[0031] e Then the aluminum foil strip is die-cut by the second roller cutter 6 to form long aluminum foil strips of set width, and a gap width of 0.15 mm is left between adjacent long aluminum foil strips. The second roller cutter 6 will not cut the upper protective film and will not cut the lower protective film. After the second roller cutter 6 completes the die-cutting, the lower protective film is rolled up, so that the lower protective film can be used again as a protective film for subsequent die-cutting;

[0032] The interval width and both sides of the width direction are treated as waste and discharged through winding;

[0033] After that, the entire die-cut product surface is covered with a release film;

[0034] h The whole product passes through the pressing space formed by the upper steel roller 7 and the lower steel roller 8. The edge of the long aluminum foil is flattened by the pressing force of the upper steel roller 7 and the lower steel roller 8. The upper protective film is rolled up by the receiving roller, so that the subsequent long aluminum foil can be used after the upper film is peeled off; the upper steel roller 7 and the lower steel roller 8 are the same steel rollers, which are solid steel shafts to ensure easy production and uniform and reliable force; the long aluminum foil is cut by the cutting knife at the rear to form a set length and then rolled up.

[0035] In a specific embodiment, all the composite roller sets are rollers of the same diameter and run at the same speed.

[0036] The aluminum foil strip is die-cut by the second roller cutter to form long strips of aluminum foil of set width, and a gap width is left between adjacent long strips of aluminum foil. The gap width is then discharged so that the edges of adjacent long strips of aluminum foil will no longer be hard squeezed during die-cutting, and there is space for free deformation. The cut long strips of aluminum foil are passed through the pressing space formed by the upper steel roller and the lower steel roller. The edges of the long strips of aluminum foil are smoothed by the pressing force of the upper steel roller and the lower steel roller, so that the edges of the die-cut long strips of aluminum foil are smooth, ensuring the aesthetics of the products that are subsequently attached and used.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A long strip aluminum foil tape flat die-cutting process, characterized in that: a. Lay two layers of protective film in advance along the production line; b. Then, the first roller cutter and the first steel roller are used to punch out positioning holes on the double-layer protective film; c. Laying the aluminum foil roll on the upper surface of the upper protective film through the feeding roller and the second steel roller, so that the single-sided adhesive layer of the aluminum foil roll is arranged upward, and a self-contained film is arranged on the single-sided adhesive layer; d. Then, a set of composite rollers are used to composite a process release film on the upper surface of the self-contained film; e Then the aluminum foil strip is die-cut by the second roller cutter to form long aluminum foil strips of set width, with a spacing width left between adjacent long aluminum foil strips. The second roller cutter will not cut the upper protective film and will not cut the lower protective film. After the second roller cutter completes the die-cutting, the lower protective film is rolled up, so that the lower protective film can be used again as a protective film for subsequent die-cutting; The width of the interval f is treated as waste and discharged through winding; After that, the entire die-cut product surface is covered with a release film; h The entire product passes through the pressing space formed by the upper steel roller and the lower steel roller, and the edge of the long aluminum foil is flattened by the pressing force of the upper steel roller and the lower steel roller.

2. A process for flattening and die-cutting a long strip of aluminum foil tape as claimed in claim 1, characterized in that: In step f, waste materials on both sides of the aluminum foil roll in the width direction are discharged at the same time.

3. A long strip aluminum foil tape flat die-cutting process as claimed in claim 1, characterized in that: After step h, the upper protective film is rolled up by a receiving roller, so that the subsequent long strip of aluminum foil can be used by peeling off the upper film.

4. A process for flattening and die-cutting a long strip of aluminum foil tape as claimed in claim 1, characterized in that: The long strip of aluminum foil is cut into a set length by a cutting knife at the rear and then rolled up.

5. A process for flattening and die-cutting a long strip of aluminum foil tape as claimed in claim 1, characterized in that: The thickness of the adhesive layer on one side of the long aluminum foil is 0.085 mm.

6. A process for flattening and die-cutting a long strip of aluminum foil tape as claimed in claim 1, characterized in that: The width of the long strip of aluminum foil is 1.85 mm.

7. A process for flattening and die-cutting a long strip of aluminum foil tape as claimed in claim 1, characterized in that: The interval width is 0.15 mm.

8. A process for flattening and die-cutting a long strip of aluminum foil tape as claimed in claim 1, characterized in that: The upper steel roller and the lower steel roller are identical steel rollers, which are solid steel shafts.

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