JPH0236057A - Honing device for knife edge of industrial cutting tool - Google Patents

Abstract

PURPOSE:To optionally set the projecting position of a rotary grindstone for a frame and to execute honing of the knife edge of an industrial cutting tool safely and surely by providing in plural pieces a rotary grindstone freely movably at one part of a pair of frames whose meeting angle is made freely adjustable within the range of about 120 deg. mutually. CONSTITUTION:A pair of frames 1, 16 are turned according to the thickness and angle of a knife edge in the industrial cutting tool to be subjected to honing to adjust the meeting angle thereof. The rotary grindstones (11a-11c), (23a, 23b) provided on each frame 1, 16 are advanced and retreated in the respective meeting direction to adjust the projecting position thereof. After abutting the knife edge of the industrial cutting tool to the rotary grindstones (11a-11c), (23a, 23b) in this state, the whole body of the frames 1, 16 is slided by reciprocating along the length direction of the cutting tool. This knife edge is subjected to honing with rotating the rotary grindstones (11a-11c), (23a, 23b) according to the reciprocating slide of this frame.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a cutting edge honing device for various industrial cutlery such as printed matter cutting knives and industrial cutlery. The purpose is to improve sexuality.

(Prior art) When honing the cutting edge of various industrial cutlery tools, a grindstone-like abrasive material is held with bare hands and brought into contact with the angle of the cutting edge. The most common method is to repeatedly slide back and forth in this direction.

Therefore, the hands are always in danger.

Further, for honing a cutting blade with a short cutting edge called a "chip", a means for moving the whetstone while giving a predetermined angle change to the whetstone, a means for fixedly positioning the cutting blade constituting the workpiece, and A cutting edge honing device including a means for pressing the cutting edge of a cutting blade against the grindstone has recently been published as Japanese Patent Application Laid-Open No. 103765/1983.

(Problems to be Solved by the Invention) However, with the method of holding the abrasive material in the length direction of the cutting edge with bare hands and repeating sliding and reciprocating movements, it is easy to cause uneven polishing along the length of the cutting edge, and it is difficult to There are other problems, such as requiring a lot of work, being always dangerous, and requiring long hours of work, which lowers the operating rate of the line.

On the other hand, the recently developed blade honing device disclosed in JP-A-61-103765 was developed as a honing device for a cutting blade with a short cutting edge called a "chip," and is not only suitable for boat fishing. However, the structure is complicated, and it is not practical because it is completely unsuitable for polishing a long cutting edge as planned in the present application.

(Means for Solving the Problems) The present invention solves various problems in the prior art described above, and aims to simplify the work, improve honing work efficiency, and eliminate the need for skill. Moreover, the purpose is to obtain a stable honing effect and, in particular, to make the honing work safer.

The specific configuration of the present invention will be described below. The present invention includes a pair of frames whose facing angles can be freely adjusted within a range of about 120 degrees, and a plurality of frames provided for each of the pair of frames. It consists of a rotating grindstone that can freely move forward and backward in the facing direction.

Further, the present invention provides a cutting edge of an industrial cutter in which one or more rotatable guide rollers are attached to at least one of the opposing sides of a pair of frames whose facing angles are adjustable within a range of approximately 120 degrees. It also relates to a honing device.

Furthermore, the above-mentioned pair of frames are usually configured to have five rotating whetstones detachably attached to them, and each of the above-mentioned rotating whetstones can be used with different grain sizes attached. It has been made possible.

(Function) A pair of frames whose facing angles can be adjusted are adjusted according to the thickness and angle of the cutting edge of the blade to be honed, and the rotating whetstones are moved forward and backward in the respective facing directions. After the position is adjusted, the entire frame is repeatedly slid back and forth along the length of the cutter while the cutting edge is brought into contact with the rotating grindstone of at least one side of the frame. At this time, each rotating grindstone rotates as the frame moves and polishes the cutting edge.

Furthermore, when the frame is moved, the guide roller comes into line contact with the side surface of the cutter and rolls along its length to facilitate the movement of the frame.

(Example) The specific content of the present invention will be explained below based on the illustrated example. Reference numerals 1 and 16 refer to a pair of frames whose facing angles can be freely adjusted within a range of approximately 120 degrees; 1laS llb, 1) C, 23a, and 23b are rotary grindstones provided for each of the above-mentioned pair of frames 1 and 16, and are movable in the direction facing each frame; 14a, 14b, and 26 are for each of the frames 1 and 16; Rotary grindstone in 16 1) a, llb, Ilc and 23
The side plates 1a and 1 are located in the middle between the side plates 1a and 23b
6a shows guide rollers rotatably provided in each of the guide rollers 6a.

The frame 1 has a side plate 1a standing perpendicularly to its side surface, and a pair of end plates 2 and 6 are integrally attached to both longitudinal ends of the frame 1.

The end plate 2 has a substantially semi-circular outer peripheral edge, and has a flange 4 projecting inward from the outer peripheral edge, as well as a flange 4 which is similar to the inner peripheral edge of the opposite end plate 2. It has a flange 3 that protrudes in the direction, thereby creating a groove 5 between both flanges.
is formed.

The end plate 6 has a shape substantially corresponding to the end plate 2, and has a flange 8 projecting inward from the outer peripheral edge, and a flange 8 extending in the same direction inside the inner peripheral edge of the end plate 6. A groove 9 is formed between both flanges by the protruding flange 7.

Note that reference numeral 10 indicates a long groove provided in an arc shape along the outer peripheral side flange 8 of the end plate 6.

The frame 1 is provided with adjustment screws 13a, 13b, and 13c at equal intervals along its length, and each adjustment screw has a rotating shaft 12a that is rotatably passed through the adjustment screw along its axis. , 12b, 12C are attached, and rotating grindstones 1)a, 1)b, llc are attached to each rotating shaft, thereby adjusting screws 13a, 13b, 1
The rotary grindstone is configured so that when the wheel 3C is rotated clockwise, the whetstone advances above the frame 1, and when the wheel 3C is rotated counterclockwise, it retreats.

The guide roller 143.14b is the above-mentioned rotary grindstone 1i.
a and 1). The roller shafts 15a and 15b are attached to the side plate 1a at intermediate positions between the rollers 15b, 1b, and 1b, and IIC, and are rotatably supported by roller shafts 15a and 15b that protrude parallel to the upper surface of the frame 1.

The frame 16 also has a side plate 1 in a direction perpendicular to its side part.
6a, and a pair of end plates 17 and 20 are integrally attached to both left and right ends of the frame 16 in the longitudinal direction.

The length of the frame 16 including the left and right end plates 17 and 20 is equal to the inner distance between the left and right end plates 2 and 6 of the frame 1, and the end plate 17 has a circular shape on its inner circumference. An arc-shaped flange 18 is provided protrudingly, and its outer peripheral edge is loosely fitted into the groove 5 of the end plate 2 of the frame 1.

The end plate 20 is formed into an arcuate shape, and its inner circumferential diameter is equal to the outer diameter of the flange 7 of the end plate 6 in the frame 1, and its outer circumferential edge is equal to the inner diameter of the flange 8 of the end plate 6 in the frame l. As a result, the outward convex portion 19 of the end plate 20 is loosely fitted into the inner groove 9 of the end plate 6 in the frame l, so that the pair of frames 1 and 16 are at least within a range of about 120 degrees from each other. The facing angle can be adjusted freely.

Furthermore, the frame 16 is provided with adjustment screws 25a and 25b at equal intervals along its length, and each adjustment screw has a rotating shaft 24 that is rotatably passed through the adjustment screw along its axis.
a, 24b are attached, and a rotary grindstone 2 is attached to each rotating shaft.
3a and 23b are attached, so that when the adjustment screws 25a and 25b are rotated clockwise, the rotary grindstone advances above the frame 16, and when it is rotated counterclockwise, it moves backward. There is.

Further, the guide roller 26 is attached to the side plate 16a at an intermediate position between the above-mentioned rotary grindstones 23a and 23b, and has a roller shaft 2 protruding parallel to the upper surface of the frame 16.
7 is rotatably supported.

In both figures, 22 indicates a fixing screw, and when turned clockwise, the screw shaft 21 screws into the end plate 20 on the frame 16 side, and when turned counterclockwise, it gradually comes out from the end plate 20. The mutual facing angle of the frame 1 and the frame 16 can be freely fixed via a long groove 10 provided in the end plate 6 on the frame 1 side.

However, in the above configuration, the adjustment screws 13a, 13b
, 13c, 25a, and 25b are rotated by the required amount to form rotating grindstones 1) a, llb, 1) C1 and 23a,
23b to each frame 1 and 16, and further loosen the fixing screw 22 to remove the frame 1.
After adjusting the mutual facing angle between the frame 16 and the frame 16, turn the fixing screw 22 gold clockwise again to fix the angle between them, and remove the rotating grindstones 1) a, llb, IIC and 23a, 23.
b is brought into contact with the cutting edge of the cutter to be honed and the sliding reciprocating motion is repeated to perform honing work on the cutting edge. In this case, the guide rollers 14a, 14b on one side,
or 26, by rotating the adjustment screws 13a, 13b, 13C1 or 25a, 25b counterclockwise to move the rotary grindstone back toward the frame, the guide roller in that area will protrude. Then, perform the honing operation while bringing this into contact with the side of the cutlery.

In addition, if a rotating whetstone is not required on one side of the frame, use only a guide roller, or install or form a guide bar with good sliding properties (not shown), and perform honing while adjusting the angle as desired. You can also do this.

(Effects of the Invention) As described above, the present invention is a pair of frames whose facing angles can be freely adjusted within a range of approximately 120 degrees, and a rotating grindstone is provided on at least one of the frames, so that the angle of the cutting edge can be freely adjusted. Moreover, since the rotary whetstone rotates during honing work, there is no uneven wear, and since the rotary whetstone can move forward and backward, the protrusion position relative to the frame can be set arbitrarily, making it safe and risk-free during honing. Moreover, the cutting edge can be reliably and accurately honed without requiring any skill.

Also, on at least one of the opposing sides of the pair of frames, there is a
Alternatively, if a plurality of rotatable guide rollers are installed, the movability during reciprocating movement over the length of the cutter during honing work will be improved.

Furthermore, depending on the degree of wear of the cutter to be honed, it is possible to carry out the finishing work more efficiently by attaching a plurality of rotating grindstones each having a different grain size.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a cutting edge honing device according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line A--A in FIG. 1. 1.16...Frame 2.6.17.20...End plate 5.9...Groove portion 10...Long groove 1)a, Ilb, Ilc , 23a, 23b
・・・・Rotary grindstones 12a, 12b, 12c,
24a, 24b ・== Rotating shaft 13a, 13h, 13
C125a125b...adjustment screw 14a,
14b, 26...Guide roller 15a
, 15b, 27-roller shaft 22... fixing screw

Claims (2)

[Claims] (1) A pair of frames whose facing angles can be freely adjusted within a range of about 120 degrees from each other, and a plurality of rotating grindstones which are provided on at least one of the pair of frames and can freely move forward and backward in each facing direction. A cutting edge honing device for industrial cutlery. (2) A claim in which one or more rotatable guide rollers are attached to at least one of the opposing sides of a pair of frames whose facing angles are adjustable within a range of about 120 degrees from each other. The cutting edge honing device for industrial cutlery according to item (1).