JPH081585A - Machining device which uses cutting blades - Google Patents

Abstract

PURPOSE:To make cutting blades maintain a predetermined interval ratio at all times even if the width of base paper is changed by assembling a link bar to form an expandable bar in the form of pantagraph and arranging a support member for fixing the cutting blades at least at any position of a central pivotal support point and an end pivotal support point of the link bar. CONSTITUTION:Expandable bars 13, 14 are expanded and shrunk by moving support ?bars 17 at rear end portions on the right and left sides thereof. The support bars 17 at tips on the right and left sides are fitted in a threaded bar 21, and the bar 21 is rotated by a handle 24 to move the support bars 17. The threaded bar 21 is provided with a right screw on the right side 22 of a support member 15 at the center and a left screw on the left side 23 thereof. When the bar 21 is rotated in the right direction, the support members 17, 17 move to the center to approach each other, and when it is rotated in the left direction, they move toward the outside to come apart each other. That is, support members 16, 16 at the center move by a half of travel amount due to the travel of the support members 17 to hold an intermediate position between the support members 15, 17 at all times.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for moving a backing sheet and a cutting blade arranged at a predetermined interval to guide the backing sheet, and processing the backing sheet by cutting, grooving or slitting the backing sheet. It is used when processing etc.

[0002]

2. Description of the Related Art As a mount for this type of processing, there is a mount for forming a side wall of a paper box, for example.
If grooves or slits are formed in the bent portion of the mount, it is possible to smoothly bend when forming the side wall and to form a neat corner portion without wrinkles. The grooves and slits formed on the side wall maintain a specific spacing ratio when the box is rectangular, and are equidistant when the box is regular polygonal.

Japanese Utility Model Publication No. 58-46015 discloses a technique in which a side wall material is a backing sheet that is folded and polymerized so that the edges of the backing sheet are not visible on the side wall itself. Even when the groove for folding and overlapping the mount is formed, it is necessary to maintain a specific interval ratio with respect to the mount and to arrange the cutting blade at a position where the thickness of the paper is adjusted. Therefore, in the positioning work of the cutting blade, there is a disadvantage that the position of the cutting blade has to be individually adjusted every time the size of the box and the height of the side wall are different.

[0004]

The present invention relates to an apparatus for processing a mount while moving either the mount or the cutting blades arranged at a predetermined interval so as to process the mount, even if the width of the mount changes. The challenge is to maintain the space ratio.

[0005]

[Technical Means] Technical means for solving this technical problem include (a) a pantograph type telescopic rod formed by assembling link rods, (b) drive means for telescopically extending the telescopic rod,
(C) A support member disposed at at least one of a central pivot point and an end pivot point of the link rod for fixing the cutting edge, and (d) a support member that moves as the telescopic rod extends and contracts. It is composed of a guide rail. A second technical means is that the support member in this technical means is provided with a cutting blade mounting position adjusting mechanism, and the third technical means is an end in the first and second technical means. The mount guide is arranged on the telescopic rod of the section, and the fourth technical means is that the mount guide has a guide width adjusting mechanism.

[0006]

[Operation of technical means] Since the telescopic rod is formed in a pantograph type by assembling the link rods, even if the telescopic rods are extended and retracted by the drive means, the distance between the central pivot points and the end pivot points of the link rods is increased. The ratio is constant regardless of the expansion / contraction length.
Since the supporting member for fixing the cutting edge is arranged at at least one of the central pivot point and the end pivot point of the link rod, even if the length of the telescopic rod changes, the space between the support members is changed. The ratio is constant.

It is desirable to extend the telescopic rod to one end of the mount to the other end, or to extend in the left-right direction with the center of the mount as a reference. As it is guided by the guide rail, it can respond to the movement of the telescopic rod with certainty.
The distance can be maintained accurately. Therefore, even if the mount width changes, the cutting blades can always maintain a constant spacing ratio.

According to the second aspect of the present invention, since the supporting member is provided with the adjusting mechanism of the cutting blade mounting position, the position of the cutting blade can be easily adjusted even when the processing position of the mount deviates from the normal interval ratio. The distance ratio can be maintained by expanding and contracting the telescopic rod in that state.

In the third aspect, since the mount guide is arranged on the telescopic rod at the end portion, the processing position of the cutting blade can be accurately maintained. Since this mount guide is equipped with a guide width adjustment mechanism, it becomes easy to change the position of the mount in the width direction with respect to the cutting blade group, and the processing position by the cutting blade is adjusted according to the type of processing. be able to.

[0010]

As a result of the fact that the cutting blades can always maintain a predetermined spacing ratio even when the mounting paper width changes, it is not necessary to adjust the position of the cutting blades when the same processing is applied to different mounting papers.
There is an advantage that the mount of arbitrary width can be continuously processed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view for explaining a mounting state of cutting blades in an apparatus for forming grooves at equal intervals on a mount to form side walls of a square box. In this apparatus, the mount 1 is configured so that the processing base 2 can be moved forward by a roller (not shown), and a groove 11 is formed on the mount 1 by the cutting blade groups 5 and 6 arranged above the processing base 2 during the forward movement. It is supposed to be done.

The cutting blade groups 5 and 6 are supported by a cutting blade supporting device 10 arranged above the processing table 2. The device 10 includes a pair of left and right pantograph-type telescopic rods 13 and 14 in which link rods 12 are combined. Telescopic rod is
The support rod 15 fixed to the apparatus main body 10 is used as a base end portion, and is composed of an extension rod 13 that extends and contracts on the left side and an extension rod 14 that extends and contracts on the right side. Support rods 16 and 17 are fixed to the central pivot point and the tip of the link rod 12, respectively, and a total of five support rods are arranged in this embodiment.

The telescopic rods 13 and 14 are telescopically moved by moving the support rods 17 at the left and right ends. The support rods 17, 17 at the left and right ends are fitted on the screw rod 21, and the support rod 17 moves by rotating the rod 21 by the handle 24. The screw rod 21 is
The right side 22 and the left side 23 are engraved with a right-hand screw and a left-hand screw from the central support member 15 (thread groove is not shown). When the rod 21 is rotated to the right, the support members 17 and 17 are rotated.
Moves toward the center and approaches, and when rotated leftward, moves outward and separates. In this embodiment, the support members 16 and 16 at the center move by half the amount of movement as the support member 17 moves, and the intermediate positions of the support members 15 and 17 are always maintained. The screw rod may be driven by a motor or the like so as to rotate. The support rod may be moved by using a rack or other known moving mechanism without using a screw rod.

The support rods 16 and 17 are locked to the guide rail 25, and can be smoothly moved in the left-right direction along the guide rail 25. It is desirable that this guide mechanism be provided with a centering function that can automatically maintain a vertical state when the support rods 16 and 17 are tilted so that the distance between the support rods can be accurately maintained. Each support rod 15, 1
A pair of left and right cutting blades 5 and 6 are attached to the lower portions of 6 and 17 via a fixture 4 so that the angle with respect to the mount 1 is 45 degrees. As shown in FIG. 2, the cutting blades 5 and 6 are arranged so as to be displaced in the front-rear direction, and the left and right groove walls are provided with a time difference so that the resistance against the mount 1 does not increase when the mount 1 is cut. You can cut it. A pair of cutting blades are also attached to the support rod 17, but in this embodiment, both ends of the mount 1 are joined at the corners of the box, so it is sufficient to cut them diagonally and to the outside. The positioned cutting edge does not have to be attached. Therefore, the inner cutting blade attached to the support rod 17 serves not only the cutting function but also the guide function of the mount. In addition, a long hole 26 is formed in the fixing tool 4 in the lateral direction so that the position can be adjusted.

In this embodiment, the telescopic rods 13 and 14 are configured to expand and contract in the left-right direction with the center of the mount as a starting point. However, one end of the mount is fixed to one end of the mount,
The other end may be moved so that it can be expanded and contracted. Also,
The distance between the cutting edges can also be adjusted by the number of link rods. In this case, the supporting rod of the cutting blade may be supported at the central pivot point of the link rod as in this embodiment, or at the end of the link rod. In the latter case, since the support portion is displaced in the vertical direction when the telescopic rod expands and contracts, the support rod mounting mechanism must be able to absorb this. In short, the number of link rods and the mounting positions of the cutting blades are designed according to the intervals at which they are processed.

FIG. 3 shows a side wall material 20 of a box in which both ends of the mount 1 are oppositely folded to form a double box.
4 to 6 show an example of attaching the cutting blades 5 and 6 in the case of forming the grooves 11 and 11 on the mount 1 to form the material 20. This side wall material 20 is a mount 1
Since the sheet is folded at the positions P, P which are a quarter of the mount width from the center of the above, it is necessary to form the groove 11 by displacing from that position in the left-right direction by the thickness of the mount 1. In this embodiment, a cutting blade device 10a (see FIG. 4) for cutting the groove on the left side of the folding position P and a cutting blade device 10b for the right side groove (see FIG. 5) are separately arranged in the advancing direction of the mount 1. I try to cut it with the device.

The telescopic rod in each device 10a, 10b is
As in the above-described embodiment, the left and right pair 13, 14 are used, and the base ends of the telescopic rods 13, 14 are fixed to the apparatus main body 10 by a fixing member (not shown) at a position C corresponding to the center of the mount 1. . Support rods 16 and 17 are fixed to the central pivot points and tips of the telescopic rods 13 and 14, and the drive mechanism for telescopic action and the guide mechanism during telescopic action are the same as those in the embodiment shown in FIG.

A mount guide device 41 is provided below the support bar 17.
Is attached so that the distance between the tip ends of the telescopic rods 13 and 14 matches the mount width. Although the guide plate 42 of the mount guide device is movable in the width direction of the mount, it is not necessary to move the guide plate 42 in the present embodiment, which will be described in the next embodiment. At the bottom of the support rod, there are cutting blades 5, 6
The fixing device 28 is attached. This device 28 uses the oblong hole 26 of the fixing tool 4 for the cutting blade so that the cutting blades 5 and 6 can be displaced to the left by the thickness of the mount 1, and the device is mounted between the cutting blade 5 and 6 and the stopper 29 on the right side. The cut edge 1a of 1 is sandwiched and the bolt 27 is tightened to fix the cutting blades 5 and 6 in a displaced state. In addition, the cutting blades 5, 6 to the fixture
The attachment state of is the same as that of the embodiment shown in FIGS.

FIG. 5 shows a group of cutting blades for cutting the groove on the right side of the folding position P, but the left side of the cutting blade device is omitted. In this device, the scrap 1a of the mount is sandwiched between the fixing tool 4 and the stopper 29 on the left side, and the cutting blades 5 and 6 are fixed while being displaced to the right side. In this embodiment, since the required displacement amount can be obtained by using a part of the mount used, the position of the cutting edge can be adjusted very easily. However, it is also possible to use a gauge and fix the fixture with a bolde each time.

FIG. 6 shows a side wall material 30 of a box in which both ends of the mount 1 are folded in the same direction to form a triple layer.
By utilizing the recessed portion 33 formed in the folded state, a cut portion is formed at the upper edge of the inner side wall so that the "treat lid" can be housed. This side wall material 30 will be folded at a position Q, Q which is one sixth of the mount width from the center of the mount 1, but the mount end 31 forming the middle layer is twice as short as the mount thickness, and the inner layer is The mount end 32 to be formed is shortened by the depth of the recess 33.

The mount width is determined by using the guide device 41 arranged below the outer support bar 17 in the cutting blade device.
Adjust the position of. The guide plate 42 attached to the guide device 41 via the rod 43 includes an adjusting plate 44 and a supporting rod 17.
When the end plate 46 and the adjusting plate 44 are in close contact with each other by being urged outward by the spring 45 inserted between
The guide plate 42 coincides with the position of the tip of the telescopic rod. In this embodiment, in order to shorten the mount end 31 by twice the thickness, two cut pieces 1b of the mount are interposed between the end plate 46 and the adjusting plate 44, and the depth of the step portion on the mount end 32 side is deep. The strip 1c of the mount or the lid corresponding to the height is interposed, and the guide plate is displaced inward by the thickness of the mount to adjust the mount width.

Further, the groove on the side of the mount end 31 is formed at a position displaced from the position Q in the left-right direction by the thickness of the mount 1,
The groove on the side of the mount end 32 is displaced leftward by the thickness of the mount 1 and rightward by twice the thickness of the mount 1. Therefore, with respect to the groove located on the right side of the positions Q and Q, the elongated hole 26 of the fixture 4 is used to move the groove laterally,
The fixing tool 4 of the cutting blades 5 and 6 on the side of the mount edge 31 sandwiches one piece 1b of the mounting sheet 1 between the left side stopper 29 and the fixing tool 4 of the cutting blades 5 and 6 on the side of the mount edge 32. Two pieces of the cut piece 1b of the mount 1 are sandwiched between the left stopper 29 and the bolts 27 are respectively tightened to fix the fixture 4 in a displaced state (see FIG. 7). As for the groove located on the left side of the position Q, the fixture 4 has a stopper 29 on the right side.
One piece 1b of the mount 1 is sandwiched between and and the bolts 27 are tightened to fix the fixtures 4 in a displaced state (see FIG. 8).

FIGS. 7 and 8 show an example of attaching the cutting blades 5 and 6 in the case of forming the grooves 11 on the mount 1 to form the material 30. Also in this embodiment, similarly to the embodiment shown in FIGS. 4 and 5, a cutting blade group (see FIG. 7) for cutting the groove on the left side of the folding position P and a cutting blade group (see FIG. 8) for cutting the right side groove are formed. Are cut by another device sequentially arranged in the traveling direction of the mount 1.

[Brief description of drawings]

FIG. 1 is a schematic front view of an apparatus for forming grooves at equal intervals on a mount.

FIG. 2 is a right side view of the fixing tool for the cutting blade.

FIG. 3 is a front view of the side wall material before and after folding.

4 is a schematic front view of a cutting edge support device for processing the material of FIG.

5 is a schematic front view of another cutting edge support device for processing the material of FIG. 3;

FIG. 6 is a front view of a side wall material before and after folding in another embodiment.

7 is a schematic front view of a cutting edge support device for processing the material of FIG.

8 is a schematic front view of another cutting edge support device for processing the material of FIG.

[Explanation of symbols]

1 mount, 4 cutting edge fixtures, 5, 6 cutting edges, 10
Cutting blade support device, 11 groove, 12 link rod, 13,
14 telescopic rods, 15, 16, 17 support rods, 21 screw rods, 25 guide rails, 41 width adjusting device

Claims (4)

[Claims] 1. A pantograph-type telescopic rod formed by assembling link rods, and a telescopic rod extending and retracting in a device for processing a mount while moving either the mount or a cutting blade arranged at a predetermined interval while guiding the mount. Drive means, a supporting member arranged to fix the cutting edge at at least one of a central pivot point and an end pivot point of the link rod, and a guide rail for guiding the supporting member that moves as the telescopic rod expands and contracts. And processing equipment. 2. The processing apparatus according to claim 1, wherein the supporting member includes a cutting blade mounting position adjusting mechanism. 3. The processing apparatus according to claim 1 or 2, wherein a mount guide is arranged on the telescopic rod at the end. 4. The processing apparatus according to claim 3, wherein the mount guide includes a guide width adjusting mechanism.