JPH07698U - Rotary die cutter - Google Patents

Abstract

(57) [Summary] [Object] To provide a device capable of adjusting a gap between a cutting roller and a receiving roller of a rotary die cutter. [Structure] An eccentric bearing 5 with eccentricity adjusting means is used for bearing of either the cut roller 1 or the receiving roller 3 in the rotary die cutter, and the upper and lower end surfaces of both ends of the cut roller are provided with vertical adjustment. The pressure roller 21 is pressed and the gap between the cut roller and the receiving roller is adjusted by the eccentric bearing as the cutting edge of the cutting blade wears and the thickness of the mount changes.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a rotary die cutter.

[0002]

[Prior art]

 A conventional rotary die cutter is composed of a cutting roller and a receiving roller arranged vertically, and a cutting blade attached to the outer peripheral surface of the cutting roller.

As a method of attaching the cutting blade, a magnet or a means for holding and holding both ends as shown in Japanese Utility Model Laid-Open No. 61-71434 is adopted.

Further, contact rings provided on the outer peripheral surfaces of both ends of the cut roller are brought into contact with the outer peripheral surfaces of both ends of the receiving roller to form a constant gap (a cutting edge provided on the cutting blade) between the cut roller and the receiving roller. It regulates the biting depth of the).

[0005]

[Problems to be solved by the device]

 According to the above configuration, when the cutting edge becomes shallow due to wear of the cutting edge of the cutting blade, a problem of deepening the cutting edge is required.

However, since the gap between the cut roller and the receiving roller is regulated by the contact between the receiving roller and the contact ring, it cannot be adjusted, and a new cutting blade needs to be replaced.

For this reason, there are problems that it is troublesome, the operating rate of the rotary die cutter is significantly reduced, and the cost is increased.

Further, when the thickness of the backing paper of the adhesive paper changes, the bite depth of the cutting edge also changes, so that there is a problem that the thickness of the paper must be unified.

Further, a strict dimension is required for the height (protrusion length) of the cutting blade when manufacturing a cutting blade that forms the cutting edge due to partial corrosion of the metal flat plate due to the regulation of the gap between the cutting roller and the receiving roller. Therefore, there is also a problem that a high degree of skill is required for manufacturing.

Therefore, an object of this invention is to make it possible to adjust the biting depth of the cutting edge extremely easily.

[0011]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention relates to a rotary die cutter including a cut roller and a receiving roller arranged vertically, and a cutting blade that is attached to the outer peripheral surface of the cut roller in an appropriate manner so as to overlap each other. An eccentric bearing with eccentricity adjusting means is used for the bearing of either the cut roller or the receiving roller, and a pressure roller with up / down adjusting means is in contact with the upper peripheral surface of both ends of the cut roller. To adopt.

[0012]

[Action]

 With the above configuration, when the gap between the cutting roller and the receiving roller is reduced when the cutting blade is worn or the backing is thin, the eccentric bearing can be rotated by operating the adjusting means. While raising, raise the receiving roller or lower the cutting roller.

Of course, after adjusting the gap, the pressure roller is brought into pressure contact with the upper peripheral surface of the cut roller while lowering the pressure roller by operating the elevating means.

In addition, when the gap between the cut roller and the receiving roller is increased, the cut roller is raised or the receiving roller is lowered while rotating the eccentric bearing by the operation of the adjusting means.

When the cut roller is raised during the above adjustment, the pressure roller is retracted upward in advance by operating the elevating means.

Of course, after adjusting the gap, the pressure roller is pressed against the upper peripheral surface of the cut roller.

[0017]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, reference numeral 1 denotes a cutting roller, and a cutting blade 2 is attached to the outer peripheral surface of the cutting roller 1 so as to overlap each other.

The cutting blade 2 is attached to the cutting roller 1 by a method of magnetically adhering to the cutting roller 1 by a myriad of magnets (not shown) embedded in the peripheral surface of the cutting roller 1, or as disclosed in Japanese Utility Model Laid-Open No. 61-71434. , There is a method of holding both ends.

Reference numeral 3 is a receiving roller arranged below the cutting roller 1.

The cut roller 1 or the receiving roller 3 is supported on the side frame 4 via an eccentric bearing 5 having means for adjusting the amount of eccentricity.

In the above bearing, the eccentric bearing 5 is used only for the receiving roller 3 as shown in FIGS. 1 and 2, and the eccentric bearing 5 is used only for the cut roller 1 as shown in FIG. There is.

The eccentricity adjusting means of the eccentric bearing 5 rotatably supports the outer ring 6 of the eccentric bearing 5 with respect to the side frame 4 as shown in FIGS. The first tooth portion 7 provided on the upper portion of the lever 11 and the second tooth portion 12 provided on the upper end of the lever 11 that swings about the shaft 10 serving as a fulcrum when the fastener 8 is loosened. A method of rotating the outer ring 6 from the second tooth portion 12 to the first tooth portion 7 by tilting 11 (note that after adjusting the eccentricity, tightening the fastener 13 causes the outer ring 6 to rotate through the holding metal fitting 14. 5), the outer ring 6 of the eccentric bearing 5 is rotatably supported with respect to the side frame 4, and the worm wheel 15 is provided on a part of the outer circumference of the outer ring 6 as shown in FIG. We adopted a method that meshes.

With the above configuration, when the gap between the cutting roller 1 and the receiving roller 3 is reduced due to wear of the cutting edge 2 ′ of the cutting blade 2 or change in the thickness of the mount A, the eccentric bearing 5 While adjusting the amount of eccentricity, the receiving roller 3 is moved with respect to the cutting roller 1 or the cutting roller 1 is moved toward the receiving roller 3.

When the gap between the cut roller 1 and the receiving roller 3 is increased, the receiving roller 3 or the receiving roller 3 with respect to the cut roller 1 is adjusted while adjusting the eccentric amount of the eccentric bearing 5. On the other hand, the cut roller 1 is moved in the direction away from the cut roller 1 so that the cut b on the adhesive paper B is completely inserted.

Further, a pressure roller 21 with an elevation adjusting means is in pressure contact with the upper peripheral surface of both ends of the cut roller 1.

In the illustrated case, the pressure roller 21 with lifting adjustment is provided with a male screw 23 with a handle 22 that freely rotates at a fixed position on the side frame 4, and the male screw 23 is attached to the rail 24. As a guide, it is screwed into a female screw 26 of a slider 25 that moves up and down, and a bearing arm 27 of the pressure roller 21 is attached to this slider 25.

As shown in the drawing, the pressure rollers 21 are respectively supported on both ends of the arm 27 in the front-rear direction, and the middle of the arm 27 is rotatably attached to the slider 25 via the pin 28. Then, the pressure roller 21 can be pressed against the upper and lower peripheral surfaces of the cut roller 1.

For this reason, it is possible to stop the shake of the cutting roller 1 and perform the cutting processing by the cutting blade in a stable posture, and the processing accuracy is improved.

[0030]

【effect】

 Since the rotary die cutter according to the present invention is configured as described above, the gap between the cutting roller and the receiving roller can be adjusted freely in response to wear of the cutting edge of the cutting blade or change in the thickness of the mount. can do.

Of course, since the gap can be adjusted, it is possible to use a cutting blade with a restored worn edge.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional front view of the same.

FIG. 3 is a partially cutaway enlarged front view showing the main part of the above.

FIG. 4 is a perspective view of the product processed in the same as above.

FIG. 5 is a side view showing another embodiment.

[Explanation of symbols]

 1 Cut Roller 2 Cutting Blade 3 Receiving Roller 4 Side Frame 5 Eccentric Bearing 6 Outer Ring 7 First Tooth 8 Fastening Tool 10 Shaft 11 Lever 12 Second Tooth 13 Fastening Tool 21 Pressure Roller 22 Handle 23 Male Screw 24 Guide Rail 25 Slider 26 Female Thread 27 Arm 28 Pin

Claims (1)

[Scope of utility model registration request] 1. A rotary die cutter comprising a cut roller and a receiving roller arranged vertically, and a cutting blade attached to the outer peripheral surface of the cut roller by a proper method so as to overlap with each other. A rotary die cutter characterized in that an eccentric bearing with an eccentricity adjusting means is used for one of the bearings, and a pressure roller with an elevating adjusting means is brought into contact with the upper peripheral surfaces of both ends of the cut roller.