Circular knife machine beneficial to waste discharge of transparent adhesive tape

Abstract

The utility model relates to a circular knife machine beneficial to waste discharge of transparent adhesive tape, which comprises a feeding roller, a die-cutting circular knife group, a pressing circular knife group and a receiving roller which are sequentially arranged, a film releasing roller is arranged above the feeding roller, an adhesive releasing roller and an adhesive receiving roller are arranged above the pressing circular knife group, the die-cutting circular knife group comprises an upper die-cutting circular knife and a lower die-cutting circular knife, and the die-cutting circular knife group comprises an upper die-cutting circular knife and a lower die-cutting circular knife. The upper die cutting circular knife is provided with a plurality of cutters, the cutters are linear and define a closed pattern, the material pressing circular knife set comprises an upper material pressing circular knife and a lower material pressing circular knife, the upper material pressing circular knife comprises a material pressing table with the same range as the closed pattern structure, and the outer surface of the material pressing table is of a cambered surface structure with the axis of the upper material pressing circular knife as the axis. According to the utility model, the whole waste glue range can be extruded by utilizing the material pressing circular knife group after the die cutting circular knife group performs die cutting, so that a waste glue film is adhered to a cut protective film part and is removed by an adhesive tape, and the residue of the waste glue film is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a circular knife machine which is beneficial to the discharge of waste transparent adhesive. Background Art

[0002] Film products usually require a base film, an adhesive film and a protective film. According to the actual requirements of the adhesive surface, some parts need to be cut off in the middle of the plane. The cut part may belong to the base film, the protective film, or the adhesive film.

[0003] When removing the film, the simplest way is to remove the base film and the protective film together, but sometimes it is not possible to cut through completely, and at least one layer of the base film and the protective film needs to be retained. At this time, how to remove the film is a difficult point. Because the base film and the protective film can be colored films such as white and black, but the film is often transparent, it is difficult to monitor whether it has been removed using conventional methods, and it is difficult to identify. Therefore, some measures are needed to improve the success rate of peeling and avoid film residue.

[0004] Therefore need to improve the knife die structure to solve the above problems. Summary of the invention

[0005] The main purpose of the utility model is to provide a circular knife machine which is conducive to the discharge of waste transparent adhesive. After the die-cutting circular knife group has die-cut, the pressing circular knife group can be used to extrude the entire waste adhesive range, so that the waste adhesive film is attached to the cut protective film part and is removed by the adhesive tape, thereby avoiding the waste adhesive film from remaining.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a circular knife machine that is conducive to the discharge of waste transparent adhesive, comprising a feeding roller, a die-cutting circular knife group, a pressing circular knife group and a collecting roller that are arranged in sequence, a film feeding roller is arranged above the feeding roller, a glue feeding roller and a collecting roller are arranged above the pressing circular knife group, the die-cutting circular knife group comprises an upper die-cutting circular knife and a lower die-cutting circular knife, a plurality of cutting knives are arranged on the upper die-cutting circular knife, the cutting knives are linear and form a closed figure, the pressing circular knife group comprises an upper pressing circular knife and a lower pressing circular knife, the upper pressing circular knife comprises a pressing table with the same range as the closed figure structure, and the outer surface of the pressing table is an arc surface structure with the axis of the upper pressing circular knife as the axis.

[0007] Specifically, a conveying roller group is provided between the unwinding roller and the die-cutting circular knife group, between the die-cutting circular knife group and the pressing circular knife group, and between the pressing circular knife group and the receiving roller.

[0008] Specifically, the closed figure formed by the cutting knife is S-shaped.

[0009] The beneficial effects of the technical solution of the utility model are:

[0010] The utility model can use the pressing circular knife group to extrude the entire waste rubber range after the die-cutting circular knife group has die-cut, so that the waste rubber film is attached to the cut protective film part and is removed by the adhesive tape, thereby avoiding the waste rubber film from remaining. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the working principle diagram of the circular knife machine of the embodiment;

[0012] Figure 2 The figure is the unfolded view of the roller surface of the upper die-cutting circular knife;

[0013] Figure 3 The expanded view of the roller surface of the upper pressing circular knife;

[0014] Figure 4 It is the waste discharge principle diagram of the circular knife machine of the embodiment;

[0015] Figure 5 This is the front view of the upper pressing circular knife.

[0016] The numbers in the figure represent:

[0017] 1-Circular Knife Machine,

[0018] 11- Unloading roller,

[0019] 12-die cutting circular knife set, 121-upper die cutting circular knife, 122-lower die cutting circular knife,

[0020] 13-pressing circular knife set, 131-upper pressing circular knife, 132-lower pressing circular knife,

[0021] 14-receiving roller, 15-film placing roller, 16-rubber placing roller, 17-rubber collecting roller, 18-transmission roller group;

[0022] 2a-raw material strip, 2b-finished product strip;

[0023] 3- Protective film;

[0024] 4a - tape, 4b - tape with scrap. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with specific embodiments.

[0026] Example:

[0027] like Figure 1As shown, the utility model is a circular knife machine 1 for discharging waste transparent adhesive, comprising a feeding roller 11, a die-cutting circular knife group 12, a pressing circular knife group 13 and a receiving roller 14 which are arranged in sequence, a film-discharging roller 15 is arranged above the feeding roller 11, a glue-discharging roller 16 and a glue-receiving roller 17 are arranged above the pressing circular knife group 13, the die-cutting circular knife group 12 comprises an upper die-cutting circular knife 121 and a lower die-cutting circular knife 122, a plurality of cutting knives 1211 are arranged on the upper die-cutting circular knife 121, and the cutting knives 1211 are linear and enclosed in a closed figure, and the pressing circular knife group 13 is provided with a plurality of cutting knives 1211, and the cutting knives 1211 are linear and enclosed in a closed figure. 13 includes an upper pressing circular knife 131 and a lower pressing circular knife 132, the upper pressing circular knife 131 includes a pressing table 1311 with the same range as the closed graphic structure, the outer surface of the pressing table 1311 is an arc surface structure with the axis of the upper pressing circular knife 131 as the axis, the upper die-cutting circular knife 121 has the same diameter as the upper pressing circular knife 131, the distance from the tip of the cutting knife 1211 to the axis of the upper die-cutting circular knife 121 is r, and the distance between the axis of the upper die-cutting circular knife 121 and the axis of the upper pressing circular knife 131 is equal to an integer multiple of 2πr.

[0028] During operation, the unwinding roller 11 unwinds the raw material tape 3a, the lower part of the raw material tape 2a is the base film, and the upper part has the adhesive film, and the film unwinding roller 15 unwinds the protective film 3, sticks it on the top of the adhesive film and conveys it together; when passing through the die-cutting circular knife group 12, the cutter 1211 will cut the protective film 3 and the adhesive film together and keep the base film intact, leaving a waste area with a closed structure in the middle, but the adhesive film is not separated from the base film; when passing through the pressing circular knife group 13, the glue unwinding roller 16 will unwind several strands of adhesive tape 4a and stick them on the upper surface of the protective film 3, and the pressing table 1311 will squeeze the waste area; here, the viscosity of the adhesive film to the protective film 3 and the viscosity of the adhesive tape 4a to the protective film 3 must be greater than the viscosity of the adhesive film to the base film, otherwise the peeling cannot ensure the removal of the protective film and the adhesive film in the waste area, and the glue rewinding roller 17 with the waste adhesive tape 4b will remove the protective film 3 and the adhesive film in the waste area when rewinding, thereby avoiding the residue of the waste adhesive film. The upper die-cutting circular knife 121 and the upper pressing circular knife 131 always rotate at the same linear speed. Although the structure of the pressing platform 1311 corresponds to the closed graphic structure cut by the cutting knife 1211, in order for the pressing platform 1311 to overwhelm the position of the closed graphic, the distance between the two must satisfy a multiple relationship.

[0029] like Figure 1 As shown, a conveying roller group 18 is provided between the unwinding roller 11 and the die-cutting circular knife group 12 , between the die-cutting circular knife group 12 and the pressing circular knife group 13 , and between the pressing circular knife group 13 and the receiving roller 14 .

[0030] The conveying roller set 18 is used to keep each section of the material strip moving at the same linear speed to avoid wrinkle problems caused by uneven tension.

[0031] like Figure 2 As shown, the closed figure formed by the cutter 1211 is S-shaped.

[0032] This waste discharge method is more conducive to the situation where the waste structure is slender and there is a certain distance along the conveying direction, so the closed graphics are mostly S-shaped.

[0033] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A circular knife machine that is beneficial to the discharge of waste transparent adhesive, characterized in that: The invention comprises a feeding roller, a die-cutting circular knife group, a pressing circular knife group and a collecting roller which are arranged in sequence, a film feeding roller is arranged above the feeding roller, a glue feeding roller and a glue collecting roller are arranged above the pressing circular knife group, the pressing circular knife group comprises an upper die-cutting circular knife and a lower die-cutting circular knife, a plurality of cutters are arranged on the upper die-cutting circular knife, the cutters are linear and form a closed figure, the pressing circular knife group comprises an upper pressing circular knife and a lower pressing circular knife, the upper pressing circular knife comprises a pressing table with the same range as the closed figure structure, the outer surface of the pressing table is an cambered structure with the axis of the upper pressing circular knife as the axis, the upper die-cutting circular knife has the same diameter as the upper pressing circular knife, the distance from the tip of the cutter to the axis of the upper die-cutting circular knife is r, the spacing between the axis of the upper die-cutting circular knife and the axis of the upper pressing circular knife is equal to an integral multiple of 2πr, and the closed figure surrounded by the cutters is S-shaped.

2. The circular knife machine for discharging waste transparent adhesive according to claim 1, characterized in that: A conveying roller group is arranged between the unwinding roller and the die-cutting circular knife group, between the die-cutting circular knife group and the pressing circular knife group, and between the pressing circular knife group and the receiving roller.

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