Cutting device and cutting method

Abstract

To provide a cutting device and a cutting method that are capable of cutting a web into any length and transferring the web highly precisely.SOLUTION: A cutting device 100 comprises: an anvil roll 101 configured to feed a web 200; and a cutter roll 102 configured to cut the web 200. The anvil roll 101 comprises: an air floating transport region 111 which has a plurality of first holes in a curved surface of the anvil roll, and from which air comes out through the plurality of first holes; a cutting board region 112 provided on the curved surface; and suction regions 113 which are provided on both sides of the cutting board region 112 in a direction of rotation, and have a plurality of second holes in their curved surface and in which gas is sucked into the plurality of second holes.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cutting device and a cutting method. [Background technology]

[0002] Patent Document 1 describes an apparatus for cutting (punching) an electrode web, in which a rotary die is used to suck and hold the cut material on an anvil, and the cut material is then transferred to the next process. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-1101 Summary of the Invention [Problem to be solved by the invention]

[0004] However, because rotary dies have a load ring (bearer), the cutting length is fixed, and the diameter of the device becomes larger when cutting long lengths. And as the device becomes larger, it becomes difficult to transfer the work to the subsequent process with high precision. [Means for solving the problem]

[0005] In one embodiment of the cutting device and cutting method, the anvil roll has an air floating transport area with a plurality of first holes on its curved surface from which air comes out, a cutting board area on the curved surface, and an adsorption area on both sides of the direction of rotation of the cutting board with a plurality of second holes on the curved surface that is adsorbed by the plurality of second holes. [Effects of the Invention]

[0006] According to the cutting device and cutting method of the present disclosure, it is possible to cut a web to any length and transfer the web with high precision. [Brief explanation of the drawings]

[0007] [Figure 1]1 is a cross-sectional view showing an example of a cutting device according to a first embodiment. [Figure 2] 1 is a cross-sectional view showing an example of a cutting device according to a first embodiment. [Figure 3] 1A and 1B are a cross-sectional view and a side view showing an example of a cutting device according to a first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Embodiment 1 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figures 1 and 2 are cross-sectional views showing an example of a cutting device according to the first embodiment. Figure 3 is a cross-sectional view and a side view showing an example of a cutting device according to the first embodiment. In Figures 1, 2, and 3, a cutting device 100 includes an anvil roll 101, a cutter roll 102, a cutter 103, a motor 104, and a gear 105.

[0009] The anvil roll 101 is a roll that feeds the web 200. The anvil roll 101 has an air floating transport area 111, a cutting board area 112, and a suction area 113 on its curved surface.

[0010] The air floating transport region 111 is a region having a plurality of first holes on the curved surface. Air comes out of the plurality of first holes, causing the web 200 to float from the curved surface of the anvil roll 101. This allows the web to be transported even when the anvil is not rotating (without scratches or foreign matter). The air coming out of the plurality of first holes is supplied by an air pump (not shown).

[0011] The cutting board area 112 is an area that corresponds to cutting by the cutter roll 102. For example, the cutting board area 112 of the anvil roll 101 is a board made of urethane.

[0012] The suction region 113 is a region having a plurality of second holes on its curved surface. The plurality of second holes are suctioned, causing the web 200 to adhere to the curved surface of the anvil roll 101. The suction regions 113 are provided on both sides of the cutting board region 112 in the direction of rotation. This positional relationship allows the cut end to be delivered to a subsequent process with high positional accuracy (at a phase that does not face the cutter). Gas is sucked into the plurality of second holes by a suction pump (not shown).

[0013] The cutter roll 102 is a roll that cuts the web 200 . The cutter 103 is provided on the cutter roll 102 and cuts the web 200 . The motor 104 rotates the anvil roll 101 and the cutter roll 102 via a gear 105 .

[0014] The gear 105 changes the rotation speed of the motor 104 at a predetermined gear ratio and transmits it to the anvil roll 101 and the cutter roll 102 .

[0015] Next, the cutting method will be described. First, the web 200 is floated in the air floating transport area 111 and fed by a required length without contacting the anvil roll 101 .

[0016] Next, the cutter roll 102 and the anvil roll 101 are rotated in synchronization with the conveying speed of the web 200 .

[0017] Next, as shown in FIG. 2, the web 200 is cut at a cutting position in a direction perpendicular to the feeding direction.

[0018] After cutting, the web 200 is held by suction on the anvil roll 101 and is delivered to a subsequent process.

[0019] As described above, the cutting device and cutting method of embodiment 1 enable cutting of a web to any length and highly accurate delivery. Furthermore, the cutting device and cutting method of embodiment 1 keep the web transport path constant from empty feeding to cutting, simplifying the equipment structure and making handling easier.

[0020] The present invention is not limited to the above-described embodiment, and can be modified as appropriate within the scope of the invention. [Explanation of symbols]

[0021] 100 cutting equipment 101 Anvil Roll 102 Cuttaroll 103 Cutter 104 Motor 105 gears 111 Air floating transport area 112 Cutting Board Area 113 Adsorption area 200 Web

Claims

1. The anvil roll feeds the web-like workpiece, and the cutter roll cuts the web. The anvil roll is an air floating transport area having a plurality of first holes on a curved surface, from which air is released; A cutting board area on the curved surface, a cutting device having an adsorption area provided on both sides of the cutting board area in the direction of rotation, the adsorption area having a plurality of second holes in the curved surface, and being adsorbed by the plurality of second holes;

2. The cutting device according to claim 1 , further comprising: an air pump that supplies air to the plurality of first holes; and a suction pump that sucks gas from the plurality of second holes.

3. The anvil roll feeds the web-like workpiece, and the cutter roll cuts the web. The anvil roll is an air floating transport area having a plurality of first holes on a curved surface, from which air is released; A cutting board area on the curved surface, a cutting device having a suction area that is provided on both sides of the cutting board area in the rotation direction, the suction area having a plurality of second holes in the curved surface and is sucked by the plurality of second holes; The web is floated in the air floating transport region and fed by a required length without contacting the anvil roll; The cutter roll and the anvil roll rotate in synchronization with the conveying speed. cutting the web at a cutting position in a direction perpendicular to the feeding direction; a cutting method in which the web is held by suction on the anvil roll after cutting and the web is delivered to a subsequent process.

4. The cutting method according to claim 3 , wherein the cutting device includes an air pump that supplies air to the plurality of first holes, and a suction pump that sucks gas from the plurality of second holes.

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