Rolling shaft pair for preventing material warping, laminating machine and application of rolling shaft pair

Abstract

The invention relates to a rolling shaft pair for preventing material warping, a laminating machine and application of the rolling shaft pair, the rolling shaft pair comprises rolling shafts arranged in parallel, and each rolling shaft comprises a roller body and a split thread arranged on the roller body; the opposite-pulling threads comprise a left thread and a right thread which are oppositely arranged and are opposite in spiral direction; and the spiral directions of the adjacent leftward threads on the rolling shaft pair are opposite. Compared with the prior art, through the oppositely-arranged threads, when a material belt passes through the rolling shaft pair, a thin film is subjected to the stretching effect towards the two sides, namely, the thin film is pre-stretched, the warping effect can be counteracted in the follow-up attaching process, and a flat die cutting product is obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of die cutting and relates to a roller pair for preventing material warping, a laminating machine and applications thereof. Background Art

[0002] Ultra-thin film, such as Teflon film, PE film, etc., with a thickness of 0.005-0.03mm, is glued before die-cutting. Figure 1 As shown, during the rewinding process, the material will be stretched by force (stretching in the direction of the material roll). When the product is punched into a single small product after die-cutting, it is removed from the shipping carrier belt. When it is used, it is found that the product is warped and deformed, resulting in poor size and product bending. As a result, the placement machine cannot grab the product normally due to the warping of the product. Summary of the invention

[0003] The purpose of the present invention is to provide a pair of rollers, a laminating machine and applications thereof for preventing material warping.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A roller pair comprises rollers arranged in parallel, wherein the rollers comprise a roller body and a tension thread arranged on the roller body; the tension thread comprises a left-hand thread and a right-hand thread which are arranged oppositely and have opposite spiral directions; on the roller pair, the spiral directions of adjacent left-hand threads are opposite.

[0006] Furthermore, a rubber layer is provided on the roller body, and the tensioning threads are provided on the rubber layer.

[0007] Furthermore, the thickness of the adhesive layer is 3 to 7 mm.

[0008] Furthermore, the thickness of the adhesive layer is 4 to 6 mm.

[0009] Furthermore, the thickness of the adhesive layer is 5 mm.

[0010] Furthermore, the roller body is a steel shaft.

[0011] A laminating machine is provided with the roller pair as described above.

[0012] The application of the laminating machine as described above includes using the laminating machine for die-cutting processing.

[0013] Furthermore, the material to be processed is a film with a thickness of 0.005 to 0.03 mm.

[0014] Furthermore, the film is a Teflon film or a polyethylene film.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention uses the relatively arranged threads to ensure that when the material strip passes through the roller pair, the film is stretched to both sides, that is, pre-stretched, so that the warping effect can be offset in the subsequent bonding process to obtain a flat die-cut product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the rewinding process of ultra-thin material film;

[0018] Figure 2 is a structural schematic diagram of a roller pair in an embodiment;

[0019] Figure 3 It is a structural schematic diagram of a laminating machine in the embodiment;

[0020] Description of the markings in the figure:

[0021] 1-Roller body, 2-Tension thread. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. The following embodiments are implemented based on the above technical solution of the present invention, and provide detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to the following embodiments.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0025] Example:

[0026] A pair of rollers, comprising: Figure 2 The roller shown comprises a roller body 1 and a tensioning thread 2 arranged on the roller body 1; the tensioning thread 2 comprises a left-hand thread and a right-hand thread which are arranged oppositely and have opposite spiral directions; on the roller, the spiral directions of adjacent left-hand threads are opposite.

[0027] Specifically, a rubber layer is further provided on the roller body 1, and the tensioning thread 2 is provided on the rubber layer. In some specific embodiments, the thickness of the rubber layer is 3 to 7 mm, preferably 4 to 6 mm, and more preferably 5 mm.

[0028] In some specific embodiments, the roller body 1 is a steel shaft.

[0029] like Figure 3The laminating machine shown is provided with the above roller pair, which can be used for die-cutting processing. The material to be processed is a film with a thickness of 0.005 to 0.03 mm, and is preferably a Teflon film or a polyethylene film.

[0030] The use of this technology has changed the defect of deformation of a single small product after Teflon film die-cutting, making this type of material easier to die-cut. Before this technology was used, the product deformation rate was 40%, and the warping was 0.01mm thick. After a single 10mm×3mm small product was removed from the roll, the maximum warping was 5mm. After using this technology, the deformation rate was 5%, and the warping was 1-2mm.

[0031] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A roller pair, comprising rollers arranged in parallel, characterized in that: The roller comprises a roller body (1) and a tension thread (2) arranged on the roller body (1); the tension thread (2) comprises a left-hand thread and a right-hand thread which are arranged opposite to each other and have opposite spiral directions; when the rollers are aligned, the spiral directions of adjacent left-hand threads are opposite.

2. A roller according to claim 1, characterized in that: The roller body (1) is also provided with a rubber layer, and the tensioning threads (2) are provided on the rubber layer.

3. A roller pair according to claim 2, characterized in that: The thickness of the adhesive layer is 3 to 7 mm.

4. A roller pair according to claim 3, characterized in that: The thickness of the adhesive layer is 4 to 6 mm.

5. A roller pair according to claim 4, characterized in that: The thickness of the adhesive layer is 5 mm.

6. A roller pair according to claim 1, characterized in that: The roller body (1) is a steel shaft.

7. A laminating machine provided with the roller pair as claimed in any one of claims 1 to 6.

8. The use of the laminating machine as claimed in claim 7, characterized in that: This laminating machine is used for die cutting process.

9. The use of the laminating machine according to claim 8, characterized in that: The material to be processed is a film with a thickness of 0.005 to 0.03 mm.

10. Use of the laminating machine according to claim 9, characterized in that: The film is a Teflon film or a polyethylene film.

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