Cutting device of paper fly cutting machine

Abstract

The utility model discloses a cutting device of a paper fly cutting machine, which comprises an upper press roll and a lower press roll, the upper press roll and the lower press roll are tangent and rotate synchronously, a cam shaft penetrates through the center of the lower press roll, a sliding groove is arranged in the lower press roll, a cutter is arranged in the sliding groove in a sliding mode, the cutter is linked with the cam shaft, and the cam shaft is connected with the upper press roll and the lower press roll. The upper pressing roller is driven by the cam shaft to stretch out or retract from the roller face of the lower pressing roller, and a cutting groove matched with the cutter is formed in the roller face of the upper pressing roller. According to the cutting device of the paper fly cutting machine, due to the arrangement of the sliding groove, the cutter and the cam shaft, paper can be effectively cut when the upper pressing roller and the lower pressing roller rotate to convey the paper, the paper is pressed by the upper pressing roller and the lower pressing roller at the same time during cutting, and therefore the cutting effect can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to a flying cutter, more specifically to a cutting device of the paper flying cutter. Background Art

[0002] The automation field has high requirements for substrate cutting efficiency and cutting stability. For example, the pole piece cutting of lithium battery winding machines can only be performed when the pole piece is in a stationary state, which directly affects the cutting efficiency of the pole piece. It is a big problem to complete the synchronous cutting of the pole piece without stopping the machine. On the other hand, the existing technology uses a cylinder to directly push the blade to cut the pole piece. The impact force driven by the cylinder is large, which is easy to damage the pole piece.

[0003] Therefore, in the prior art, there is a utility model patent with patent number 2017213601674, entitled A Flying Cutting Mechanism and Winding Machine, which discloses a method of using a cam mechanism to drive the blade to operate to achieve the effect of flying cutting. However, in the above-mentioned flying cutting process, the substrate is not clamped during flying cutting, so when it is applied to relatively tough materials such as paper flying cutting, insufficient cutting is likely to occur. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a cutting device for a paper flying cutter which can achieve sufficient paper cutting.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting device of a paper flying cutter, comprising an upper pressure roller and a lower pressure roller, the upper pressure roller and the lower pressure roller are tangent to each other and rotate synchronously, a camshaft is passed through the center of the lower pressure roller, a sliding groove is provided in the lower pressure roller, a cutter is slidably provided in the sliding groove, the cutter is linked to the camshaft so as to be driven by the camshaft to extend or retract from the roller surface of the lower pressure roller, and a cutting groove matching the cutter is provided on the roller surface of the upper pressure roller.

[0006] As a further improvement of the utility model, the cutter includes a handle and a blade, the blade is opened on one side of the handle, a roller is rotatably provided on the side of the handle facing away from the blade, the wheel surface of the roller is against the camshaft, a reset edge is provided on the side of the handle facing away from the blade, a blocking edge is provided on the groove wall of the sliding groove, and the blocking edge and the reset edge are connected by a spring.

[0007] As a further improvement of the utility model, a sliding ball is elastically connected to a side of the reset edge away from the knife handle, and the sliding ball abuts against a groove wall of the sliding groove.

[0008] As a further improvement of the utility model, the upper pressure roller is a driving roller, and the lower pressure roller is a driven roller.

[0009] The beneficial effect of the utility model is that the upper pressure roller and the lower pressure roller are arranged to effectively realize the effect of conveying paper, and then the sliding groove, the cutter and the cam shaft in the lower pressure roller are arranged to extend or retract the cutter as the lower pressure roller rotates, thereby realizing the effect of cutting the conveyed paper, and when cutting, the cut part of the paper is synchronously squeezed and fixed by the upper pressure roller and the lower pressure roller, so compared with the method in the prior art, it can effectively ensure that the paper is fully cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the cutting device of the paper flying cutter of the utility model;

[0011] Figure 2 for Figure 1 Enlarged view of part A in the middle. DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0013] Reference Figures 1 to 2 As shown, a cutting device of a paper flying cutter of the present embodiment comprises an upper pressing roller 1 and a lower pressing roller 2, wherein the upper pressing roller 1 and the lower pressing roller 2 are tangent to each other and rotate synchronously, and is characterized in that: a camshaft 21 is passed through the center of the lower pressing roller 2, a sliding groove 23 is provided in the lower pressing roller 2, a cutter 3 is slidably provided in the sliding groove 23, the cutter 3 is linked with the camshaft 21, so as to be driven by the camshaft 21 to extend or retract from the roller surface of the lower pressing roller 2, a cutting groove matching with the cutter 3 is provided on the roller surface of the upper pressing roller 1, and in the process of using the cutting device of the present embodiment, it is only necessary to pass the paper to be cut between the upper pressing roller 1 and the lower pressing roller 2, so that during the rotation of the upper pressing roller 1 and the lower pressing roller 2, the cutter 3 will move with the movement, thereby achieving the paper cutting effect, and each time the cutting point of the cutter 3 is between the upper pressing roller 1 and the lower pressing roller 2, so compared with the method in the prior art, the paper cutting is more sufficient and reliable.

[0014] As an improved specific embodiment, the cutter 3 includes a handle and a blade, the blade is provided on one side of the handle, a roller 4 is rotatably provided on the side of the handle facing away from the blade, the wheel surface of the roller 4 is abutted against the camshaft 21, a reset edge 5 is provided on the side of the handle facing away from the blade, a retaining edge 22 is provided on the groove wall of the sliding groove 23, and the retaining edge 22 is connected to the reset edge 5 by a spring. By setting the above structure, the extension and retraction of the cutter 3 can be effectively realized.

[0015] As an improved specific implementation, the side of the reset edge 5 away from the knife handle is elastically connected with a sliding ball 6, and the sliding ball 6 is abutted against the groove wall of the sliding groove 23. Through the setting of the sliding ball 6, it is possible to well limit the knife handle to the center of the sliding groove 23, so that the cutter 3 can slide better.

[0016] As an improved specific implementation, the upper pressure roller 1 is a driving roller, and the lower pressure roller 2 is a driven roller. The lower pressure roller 2 is used as a driven roller, which can make the sliding of the cutter 3 more stable and reliable.

[0017] In summary, the cutting device of this embodiment, through the arrangement of the cutter 3 and the cam shaft 21, realizes that the cutter 3 slides and cuts the paper as the upper pressure roller 1 and the lower pressure roller 2 rotate. Compared with the method in the prior art, paper cutting is more fully and reliably.

[0018] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A cutting device for a paper fly-cutting machine, comprising an upper pressing roller (1) and a lower pressing roller (2), wherein the upper pressing roller (1) and the lower pressing roller (2) are tangential to each other and rotate synchronously, and is characterized in that: A camshaft (21) is provided at the center of the lower pressure roller (2), a sliding groove (23) is provided in the lower pressure roller (2), a cutter (3) is slidably provided in the sliding groove (23), the cutter (3) is linked with the camshaft (21) so as to be driven by the camshaft (21) to extend from or retract from the roller surface of the lower pressure roller (2), and a cutting groove matching the cutter (3) is provided on the roller surface of the upper pressure roller (1).

2. The cutting device of the paper flying cutter according to claim 1 is characterized in that: The cutter (3) comprises a handle and a blade, wherein the blade is provided on one side of the handle, a roller (4) is rotatably provided on the side of the handle facing away from the blade, the wheel surface of the roller (4) abuts against a cam shaft (21), a reset edge (5) is provided on the side of the handle facing away from the blade, a retaining edge (22) is provided on the groove wall of the sliding groove (23), and the retaining edge (22) is connected to the reset edge (5) via a spring.

3. The cutting device of the paper flying cutter according to claim 2 is characterized in that: A sliding ball (6) is elastically connected to the side of the reset edge (5) away from the knife handle, and the sliding ball (6) abuts against the groove wall of the sliding groove (23).

4. The cutting device of the paper flying cutter according to claim 3 is characterized in that: The upper pressure roller (1) is a driving roller, and the lower pressure roller (2) is a driven roller.

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