JPH0745080B2 - Sheet processing knife material supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention punches a sheet such as a paper, a plastic sheet, a cardboard or the like into a predetermined shape by punching press working or the like,
Forming device for automatically cutting thin-walled sheet-forming knives used to make creases into a predetermined shape and performing bending work
The present invention relates to a material feeding device for feeding a feeding device that feeds a cutting device.

[Prior art]

In recent years, the automation of punching and making creases in various shapes such as cardboard and cardboard has been rapidly advancing.

This is primarily a computer aided design system (CAD)
It depends on the development.

In such a sheet processing apparatus using CAD, a drawing such as a box development drawing for punching is first created and stored in a computer as numerical data. Using the punching die drawing data stored in the computer, the knife holding groove of the knife holding table on which the knife is set is processed by the laser processing machine.

FIG. 8 is a perspective view showing a knife holding groove b formed by the laser processing machine on the knife holding base a and a knife n fitted in the knife holding groove. The knife n has a bridge portion c.

The present invention relates to a knife material supply device in a sheet forming knife forming device, which is capable of automatically cutting and bending the knife n as described above based on numerical data obtained by the CAD or the like. It is a thing.

In the knife forming apparatus as described above, the long thin plate knife materials arranged in layers on the stocking apparatus are sequentially supplied to the material feeding apparatus one by one by the material supplying apparatus.
At this time, care is taken not to damage the cutting edge of the knife.

On the other hand, in the shearing device in the post-process, the material must be maintained horizontally, so the material supply device that supplies the material from the stock device to the material feeding device directs the knife material horizontally, and in that state, the material feeding device. Need to be supplied to.

In a shearing device that shears knife material into each knife, the knife material is sheared to a predetermined size according to the numerical data stored in CAD. Therefore, the material feeding device feeds a material having a predetermined length to the shearing device according to the data sent from the CAD, and shears the end face and the bridge portion.

There are several types of machining shapes on the knife end surface, and the shearing machine is equipped with a plurality of shearing dies having a shape corresponding to such various knife end surface shapes. Which shearing die to use is determined by CAD. Selected according to the data from.

The knife that has been sheared by the shearing device remains in a horizontal state, but thereafter, in order to bend the knife according to the shape of the knife holding groove b, it is easier to hold the knife in a vertically standing state. . Therefore, the sheared knife is sent to the posture changing device that changes the posture of the knife by the knife feeding device. The knife is now repositioned so that its cutting edge points upwards and is passed to the knife positioning device.

As shown in FIG. 8, since the bending position, bending angle, and roundness of the knife must be the same as those of the knife holding groove b, the knife is formed into a bending die for knife bending by the knife positioning device. In contrast, it is positioned at a predetermined position. As described above, various combinations of the bending angle of the knife and the size of its roundness can be considered depending on the pattern of the punched sheet. Therefore, the bending device for bending the knife has a shape suitable for various knife bending shapes. It has multiple bending dies, and the bending dies to be used are selected based on the information from CAD.

In this way, the knife held at the predetermined position by the knife positioning device is bent by the selected bending die and fitted into the arbitrary knife holding groove as shown in FIG. Knife is molded.

Next, referring to the attached drawings starting from FIG. 9, a knife forming apparatus and a knife material supplying apparatus used therein, which are the background of the present invention, will be described.

9 and 10 are a schematic front view and a schematic plan view showing the overall structure of the knife forming apparatus, and FIGS. 11 to 13 show the entire shearing process section of the forming apparatus. Figure is its front view, Figure 12 is its plan view, Figure 13 is a longitudinal sectional view,
Figure 14 is a side view from the shearing machine side, Figures 15 to 17
The figure relates to the conventional material feeder, and Fig. 15 is its front view,
FIG. 16 is a partial side view of the same, FIG. 17 is a side view of its main part,
18 to 22 are explanatory views of the material feeding device of the shearing process section. FIG. 18 is a side view thereof, FIG. 19 is a plan view thereof, and FIG. 20 is a transverse sectional view of an essential part thereof. 21 and 22 are transverse cross-sectional views of the main part for explaining the drive part of the guide rail and its movement, and FIGS. 23 to 25 are for explaining the cutter table part of the shearing device. FIG. 23 is its front view, FIG. 24 is its plan view, and FIG. 25 is its partial side sectional view.

First, a schematic configuration of a knife forming apparatus, which is the background of the present invention, will be described with reference to FIGS. 9 and 10, and thereafter, main parts of a material supply apparatus and a material feeding apparatus will be described.

As shown in these drawings, this apparatus is configured such that a knife material is sheared to a predetermined length and a bridge portion is punched, a bending step portion 2 for bending each cut knife, and a bending step portion 2 and both. It is composed of a knife conveyor 3 such as a conveyor belt that connects processes.

The shearing process section 1 is equipped with a stock device 4 for stacking long thin plate knife materials in layers and stocking them. Stock apparatus 4 in this example, ruffled stock unit 4 to stock and knife stock section 4a stocking knife material formed of the blade on the end face, a ruling that is not formed of the blade on the end face _b
It is composed of The knife stock unit 4 _a and crease the stock unit 4 _b is provided lifting table 5 is driven vertically to allow stopped at a predetermined position on the material supply apparatus to be described later. Reference numeral 6 is an air cylinder for driving up and down.

On the front surface of the stocking device 4, there is provided a material feeding device 8 which takes out the knife materials including ruled materials arranged in the stocking device 4 one by one and supplies them to the material feeding device 7 therebelow.

Material feeding device 7 provided below the material supply device 8
Is for feeding the supplied material to the subsequent shearing device 9 while keeping it in a horizontal state, and the feeding amount is set to a predetermined amount based on the CAD data as described above. Therefore, the material feeding device 7 is provided with a feed screw or the like for accurately controlling the feeding amount of the material, and the end portion of the knife material is firmly fixed even when being processed by the shearing device 9. It is equipped with a powerful clamp device that can be gripped.

The knife material fed by the material feeding device 7 by a predetermined amount is inserted into a shearing device 9 and sheared by various shearing dies according to various knife end shapes. Usually, as the mode of shearing the knife material as described above, there are a case where it is cut in a positive direction taper, a case where it is cut in a reverse direction taper, and a case where a material end portion called decorative processing is cut. Also, the ruled lines are cut in a corresponding special manner.

Cutter block 9 in the example shown equipped with a four different shear die _a, 9 _b, 9 _c, 9 _d are arranged, these cutters base 9 _a to 9 _d are conveying direction of the material feeding apparatus 7 It is moved in the direction at a right angle to and used. In addition, the above cutter table 9 _a
To 9 in the conveying direction upstream side relative to the _d dedicated cutter base 9 _e for performing bridging processing is provided retractably in the same direction as the cutter block 9 _a to 9 _d.

Each knife cut out in one of the cutter base 9 _a to 9 _d are the fed to the knife transport unit 3 by a small belt for conveying discussed after is provided at the conveying direction downstream side of the cutter block.

The knife transport unit 3 in this example is embodied by _a transport belt 3a.

The knife conveyed by the conveyor belt 3 _a is sent to the bending section 2 and passed to the knife posture changing device 10. The posture changing device 10 changes the posture of a knife fed in a horizontal state so that its blade edge faces upward, and then transfers it to the knife positioning device 11 that follows. As described above, there is no inconvenience that the knife edge is rubbed against the bending surface plate or the like by being conveyed with the knife edge facing upward and bending in that state.

The knife, which is positioned and held at a predetermined position by the knife positioning device, is gripped by the bending die of the bending device 12 and formed into an angle and a roundness according to the shape of the bending die. Bending position and angle of such a knife,
Further, the degree of roundness is specified by CAD according to the pattern of the sheet to be punched.

Therefore, bending is applied to the predetermined position of the knife set by the knife positioning device, and the bending angle and the degree of roundness according to the shape of the selected bending die are given to the knife and set by CAD. The knife is cut and bent to obtain any desired cut or fold pattern.

Subsequently, the conventional stocking device 4 will be described with reference to FIGS. 11 to 15. The stock unit 4 is configured to accommodate divided into separate upper and lower the knife and ruled as described above, are more configuration and upper knife stock unit 4 _a and the lower crease the stock unit 4 _b. Above knife stock section
4 _a and crease the stock unit 4 _b are each lateral frame 13 _a and 13 _b
Is attached to. Both horizontal frames _13a and _13b are wires
Connected vertically by 14,14, and the upper horizontal frame _13a
Is suspended on the guide blocks 16, 16 by wires 15, 15. The guide blocks 16 and 16 are fixed to both ends of the frame 18 in the horizontal direction and guided by the body frames 17 and 17 so as to be slidable in the vertical direction.

The guide blocks 16 and 16 have a balance weight 1 at one end.
The other ends of the attached wires 20, 20 of 9, 19 are attached. These wires 20, 20 are connected to the body frames 17, 17
It is wound around the pulleys 21 and 21 provided in the upper row.

Further, the transverse frame 13 _b of the lower side rod upper end of the air cylinder 6 for vertically driving the transverse frame 13 _b is engaged.

Therefore, by driving the air cylinder 6, it can be reciprocated elevation between a lower limit position (not shown) and the upper limit position shown in FIG transverse frame 13 _a, 13 _b which is connected to the wire 14, 14 . At that time, the lateral frame 13 _a and the guide block connected thereto via the wire 15, 15 16, 16
Since via wires 20, 20 are pulled up the balance weight 19 upwards, by the driving of the air cylinder 6, to lift moves with the horizontal frame 13 _b of the lower.

At the upper limit position shown in FIG. 11 above, the lower horizontal frame 13 _b
Ruffled stock unit 4 _b of the upper faces the 8 to the material supply. Further, at the lower limit position where both the horizontal frames 13 _a and 13 _b are pulled down, the knife stock portion 4 _a provided on the upper horizontal frame 13 _a faces the material supply device 8.

The knife stock unit 4 _a and crease the stock unit 4 _b has only differ subject to stock are quite made of the same structure.
As an example, the structure of the ruled stock portion 4 _b will be described with reference to FIGS. 15 and 16. In order to the lateral frame 13 _b to the mounting angle is variable, swingably guide plate 23 is mounted around the pin 22. The mounting angle of the guide plate 23 is adjusted by the tightening position of the bolt 24. On the guide plate 23, the guide plate 23
Sliding plate 25 with adjustable mounting position in the front-back direction
Is attached.

A stopper 26 is provided at the tip of the sliding plate 25. Further, a weight 28 which is slidable along a long hole 27 (Fig. 15) is provided on the upper surface of the sliding plate 25, and knives are arranged in layers between the stopper 26 and the weight 28. A work W made of material or ruled material is placed.
Such a work W is generated by the material supply device 8 described later.
The ones in front of it are taken away one after another, and the amount decreases. As the work W decreases, the weight 28 is changed to the long hole 27.
The work slides down along, and the work alignment is always maintained.

FIG. 16 shows the state where the sliding plate 25 is lowered to the rearmost position (2
5 ') and the most forward state (25 ") are clearly indicated by the chain double-dashed line. By adjusting the position of the sliding plate 25 in this way, it is possible to handle workpieces of various sizes. You can

Incidentally, in this stock state, the knife is stocked with the cutting edge up so that the cutting edge of the knife is not damaged.

Next, with reference to FIG. 13, FIG. 14, FIG. 16, and FIG. 17, a description will be given of the material supply device 8 for sequentially supplying the workpieces W aligned in the above-mentioned manner one by one to the material feeding device 7. To do.

A reduction motor 30 provided on a motor mounting frame 29 provided adjacent to the main body frame 17 is connected to shafts 33, 33 via gears 31, 32.

The shaft 33 is rotatably supported by bearings 35 _a, 35 _b as shown in FIG. 12, four brackets in the middle
The four suction nozzles 36, 36, ... Are supported via the 34, 34 ,. Each suction nozzle 36, 36, ... Is connected to a negative pressure source via a hose and a valve (not shown).

The tip of the suction nozzle 36 is flexibly connected by a swingable joint member, and as shown in FIG. 17, it can flexibly deal with aligned workpieces W _a that are slightly tilted, and reliably. The work Wa can be adsorbed, and the work is sucked when the suction nozzle 36 is lifted by the rotation of the shaft 33.
Even when the lower end of W _a is caught by the stopper 26, the work W _a can be lifted without leaving the nozzle by flexing the neck.

Therefore, by rotating the deceleration motor 30 in the normal direction or in the reverse direction, the shaft 33 is rotated, and the suction nozzles 36, 36, ... Provided on the shaft 33 face the work W shown in FIG. It can be rotated counterclockwise by 270 ° about the shaft 33 from 36 _a ) and moved to a position (36 _b ) facing the material feeding device 7. At this time, _a negative pressure is applied to the suction nozzle 36 at _a position (36 _a ) facing the work W so that the top work W _a is sucked by the suction nozzle 36. In this state, by rotating the suction nozzle 36 by 270 ° as described above, the leading work W _a is lifted and separated from the other remaining works W, and at the position (36 _b ) facing the material feeding device 7. By releasing the negative pressure with
The work 36 _a is separated from the suction nozzle 36 and supplied to the material feeding device 7.

Workpieces that are aligned with the cutting edge facing up as above 27
It is important to rotate the product by 0 ° and supply it to the material feeding device 7 in a horizontal state for protection of the cutting edge and subsequent material shearing work.

The suction nozzles 36 are mounted on the bracket 34 via air cylinders 37 provided on the bracket 34. Therefore, by driving the air cylinder 37, the suction nozzle 36 can be pressed against the work W in the stock state, or the work can be lowered on the material feeding device 7 until it comes close to the material feeding device 7. As a result, the suction of the suction nozzle 36 can be ensured, and the knife material drops from a high position onto the material feeding device 7 to damage the blade edge of the knife or impair the alignment of the knife material. The inconvenience is eliminated.

Next, the material feeding device 7 will be described. Such a material feeding device 7 is shown in FIG. 11, FIG. 12, FIG. 13, FIG. 14, FIG.
Although shown in FIGS. 18 to 20, particularly FIGS.
Details are shown in Figure 20. FIG. 20 is a cross-sectional view of such a material conveying device 7, in which the work W _a delivered by the suction nozzle 36 is conveyed in a direction perpendicular to the paper surface of FIG. As shown in FIG. 20, a horizontal mounting plate 40 is fixed to a vertical bracket 39 fixed to the main body base 38. A fixed-side lower guide rail 41 is fixed to the tip of the mounting plate 40, and a fixed-side upper guide rail 42 is fixed to the tip-side upper surface of the lower guide rail 41.

Further, the bracket 43 provided on the main body base 38 so as to face the bracket 39 is provided with a rail 44 on the upper portion thereof in a direction perpendicular to the work transfer direction. Is guided by the rail 44, the slider 45 _a and the rear slider 45 _b before sliding in a direction perpendicular to the work conveying direction, under each movable side facing the lower guide rail 41 guide rail 46
Also, the upper guide rail 47 on the movable side is fixed.

Further, as shown in FIG. 22, the lower guide rail 46 on the movable side is connected to an air cylinder 49 provided on the bracket 43 via a link portion 48, and the upper guide rail 47 on the movable side is connected. Is connected to an air cylinder 51 mounted on the bracket 43 via a link portion 50, as shown in FIG.

Further, a rail 52 parallel to the carrying direction of the knife material is fixed to the lower surface of the mounting plate 40. 53 is the rail 52 above
The slider is slidable in the longitudinal direction of the rail 52 by being fitted to. A screw block 55 is further fixed to the lower surface of the mounting plate 54 fixed to the lower surface of the slider 53. The screw block 55 is screwed with a carrying screw 56 provided parallel to the knife material carrying direction. This carries a screw 56 as shown in FIG. 12, the rotatably supported by the main body base 38 bearing 57 provided on _a, 57 _b, is rotatably driven by a reduction motor 58 connected to its end.

Therefore, by rotating the carrying screw 56 with the reduction motor 58, the screw block 55 screwed with the carrying screw 56 and the mounting plate 54 integral with the screw block 55 are moved in a direction perpendicular to the paper surface of FIG. It can be moved.

A clamper 61, which is driven by the air cylinder 60 via an air cylinder 60, is attached to the tip of the connecting member 59 provided at the end of the mounting plate 54. The clamper 61 firmly grips the rear end of the knife material placed horizontally.

Therefore, the clamper 61 is carried in the groove 62 between the lower guide rails 41 and 46 by the carrying screw 56 as shown in FIGS. Accurately convey a predetermined amount in the direction of 9.

The lower guide rail 46 on the movable side and the upper guide rail 47 on the movable side are in the positions shown in FIG. 17 in the standby state.
At this time, since the width 1 of the groove 62 between the lower guide rails 41 and 46 is set to be narrower than the width of the knife material Wa, the work Wa conveyed by the suction nozzle 36 is Both ends of 46 are bridged. Further, in this standby state, the gap between the upper guide rails 42 and 47 is set to be slightly wider than the width of the knife material Wa, so that the knife material Wa carried down by the suction nozzle 36 is lowered.
Is easily inserted between the upper guide rails 42 and 47.

As shown in FIG. 17, is conveyed to a position where the workpiece Wa is opposed to the material feeder 7, when has been lowered to on the lower guide rail 41, 46, the upper end portion of the workpiece W _a guide rail
Even if the taper corner of 42 is somewhat caught, it can be flexibly dealt with by the swinging motion of the tip of the suction nozzle 36.

Therefore, as shown in FIG. 17, the lower guide rail 46 on the movable side is
And with the upper guide rail 47 in the standby position,
The shaft 33 rotates and the knife material Wa adsorbed by the suction nozzle reaches a predetermined upper position on the center line of the groove 62.
After that, the air cylinder 37 is operated and the suction nozzle 36
And the knife material Wa adsorbed to this is lower guide rail 4
It is placed on 1,46. In this state, the negative pressure acting on the suction nozzle 36 is released, and the knife material Wa moves to the suction nozzle 36.
Will continue to be mounted on the lower guide rails 41, 46 even after the ascent has risen. In this state, the air cylinder 51 is operated and the movable side upper guide rail 47 approaches the fixed side upper guide rail 42. As a result, the knife material Wa becomes
It is pinched by 42 and 47, and the orientation of the knife material is exactly along the upper guide rails 42 and 27. That is, it is exactly parallel to the carrying direction.

Further, in this state, the air cylinder 51 is driven so that the upper guide rail 47 on the movable side is separated from the knife material Wa, and damage of the knife blade edge during the subsequent conveyance of the knife material is prevented.

In this state, the deceleration motor 58 is rotationally driven and the carrying screw
By the carrying action of 56, the screw block 55 and the clamper 61 attached thereto move from the standby position (61 _a ) at the right end shown by the broken line in FIG. 18 to the left direction, that is, toward the shearing device 9, and eventually. The rear end of the knife material placed on the lower guide rails 41 and 46 comes into contact with the clamper 61. Then, the deceleration motor 58 is stopped and the air cylinder 60 is operated so that the clamper 61 strongly grips the end portion of the knife material Wa.

Subsequently, the deceleration motor 58 is rotationally driven, and the clamper 61 and the knife material Wa held by the clamper 61 are fed toward the shearing device 9 by the carrying action of the carrying screw 56. The deceleration motor 58 is composed of a pulse motor or the like, and its rotation amount is accurately controlled. Therefore, the insertion amount of the knife material Wa into the shearing device 9 is accurately adjusted, and it is possible to cut off the end portion of the knife and process the bridge portion at a desired position.

After cutting the knife material Wa by the shearing device 9,
By reversing the carrying screw 56, the clamper 61 is retracted, and by operating the air cylinder 60 at a predetermined position, the clamper 61 is released and the air cylinder 39 shown in FIG. 22 is operated to operate the lower guide rail. By widening the distance between 41 and 46, the used knife material can be dropped downward and discharged outside the machine.

The knife material fed by the material feeding device 7 as described above is inserted into the shearing device 9 for a predetermined length and sheared into a knife having a predetermined shape.

[Problems to be Solved by the Invention]

In the above-mentioned conventional knife material feeder, the knife material is stocked in a state in which it is erected substantially vertically as shown in FIGS. 16 and 17, so that the knife material is fed to the knife material feeder. Since the posture must be changed to a horizontal state, a complicated operation such as rotating the suction nozzles 36, 36, ... by 270 ° is required, and a large space for moving the knife material is required. Therefore, in reality the limit to dispose the two stock portion 4 _a, 4 _b as shown in FIG. 16, it is not possible to provide three or more stock portions. However, there are many types of cutters that perform bending work, and it was not practical with the conventional device that can stock only two types of cutters including the cutters.

Further, the remaining residual blades cut by the shearing device 9 are dropped and discharged downward by releasing the clamper 61 in the conventional knife material supplying device. The residual blade that has fallen from 61 may fall only partly downward and the blade edge may be dropped downwards to damage the blade edge, or it may get caught in a slanted state in the middle, or even in various directions. There was a problem that it would be troublesome in the process of reusing afterwards and discarding the residual blade.

Therefore, the object of the present invention is to make a knife compact, to easily supply various kinds of knife materials, and to discharge the knife in an orderly manner without damaging the residual blade. A material supply device is provided.

[Means for Solving the Problems]

In order to achieve the above object, the first invention of the present application is a knife material for sheet processing, in which long thin plate-like knife materials arranged in layers and stocked are taken out one by one and supplied to a subsequent material feeding device. In the above-mentioned feeding device, a knife cassette for vertically stacking knife materials while keeping them horizontal, a cassette mounting table for positioning and mounting the knife cassette, and a suction surface for magnetically attracting the knife material are flat. Adsorbing head comprising a material adsorbing means composed of a magnet in the form of a magnet, and a material separating means for separating the knife material adsorbed by the material adsorbing means from the material adsorbing means,
Head transport means for reciprocally transporting the suction head between the knife cassette and the material feeding device, and a material suction head when the material suction head is located above the selected knife cassette by the head transport means. And the knife material in the knife cassette is adsorbed by the material adsorbing means and the material adsorbing head is raised, and when the material adsorbing head is above the feed position of the material feeding device by the head conveying means, the material adsorbing head is reached. And a material supply means for separating the knife material from the material adsorbing means by the material separating means and supplying it to the material feeding means, and is configured as a knife material supply device for sheet processing. The second aspect of the present invention is a sheet-feeding knife material feeding device that feeds long thin plate-shaped knife materials stacked in layers and feeds them one by one to a subsequent material feeding device while keeping the knife materials horizontal. A knife cassette for residual blades that is stacked in layers vertically, a cassette mounting table for residual blades for positioning and mounting the knife cassette for residual blades, and a magnet having a flat attracting surface for magnetically attracting the knife material. And a material adsorbing means for separating the knife material adsorbed by the material adsorbing means from the material adsorbing means, and the adsorbing head for the residual blade knife cassette and the material feeding means. A head conveying means for reciprocating the material to and from the apparatus, and the material when the material suction head is above the supply position of the material feeding apparatus by the head conveying means. The loading head is lowered to adsorb the knife material at the supply position to the material adsorbing means and the material adsorbing head is raised, and the head conveying means moves the material adsorbing head to a position above the predetermined knife cassette for residual blades. At the point of time, the material suction head is lowered, and the knife material is separated from the material adsorbing means by the material separating means and is supplied to the knife cassette for residual blades It is configured as a knife material supplying device for a knife.

[Action]

The first invention in the present application is for accommodating knife material for each kind of knife material in a knife cassette, taking out the knife materials from the knife cassette one by one, and supplying the material to a material feeding device. When supplying the material, the head conveying means conveys the material suction head to a position above the desired knife cassette, lowers the material suction head at that position and inserts the material suction means into the knife cassette, and the uppermost knife material is inserted. Adsorb. The absorbed knife material is taken out of the knife cassette by raising the material suction head. After that, the head conveying means conveys the material suction head horizontally, and when the material suction head comes above the supply position of the material feeding device, lowers the material suction head. Thereby, the taken-out knife material is accurately fed to the feeding position of the material feeding device. The supplied knife material is separated from the material adsorbing means by the material separating means and is supplied to the material feeding device.

The second invention of the present application relates to a knife material supply device capable of returning the remaining part (residual blade) of the knife material after shearing to the knife cassette for residual blades in an orderly manner. When the processing is completed, the head conveying means conveys the material suction head to above the supply position of the material feeding device on which the residual blade is mounted, and positions it there.

Next, the material suction head descends, and the residual blade mounted at the supply position of the material feeding device is sucked by the material suction means. The sucked residual blade moves up together with the material suction head, and is conveyed together as the material suction head is horizontally conveyed by the head conveying means. The head conveying means conveys the material suction head that has sucked the residual blade to a position above the predetermined knife cassette for the residual blade, and lowers the material suction head when it reaches the position above the predetermined knife cassette for the residual blade. , Insert the blade into the knife cassette for the blade. The residual blade inserted into the residual blade knife cassette is separated from the material adsorbing means by the material separating means and supplied into the residual blade knife cassette. In this way, the used residual blades are sequentially stacked on the preceding residual blades already supplied in a horizontal state, and there is no inconvenience of overflowing out of the knife cassette for residual blades. There are no problems such as damage or scattering of residual blades, and time-consuming disposal processing thereafter.

Moreover, since the knife cassette is small and does not occupy a large space even when a large number of knife cassettes are placed side by side, the entire machine can be made compact.

〔Example〕

Next, with reference to FIG. 1 to FIG. 7, embodiments embodying the present invention will be described to provide an understanding of the present invention.

Here, FIG. 1 is a schematic front view of a knife material supplying apparatus according to an embodiment of the present invention, FIG. 2 is a side view of the same, and FIGS. 3 (a) and 3 (b) show an operating procedure of the supplying apparatus, respectively. The flow chart shown in FIGS. 4 to 6 shows a knife cassette, FIG. 4 is a front view thereof, FIG. 5 is a side view thereof, and FIG.
The drawing is a partial plan view, and FIG. 7 is a front view showing a knife cassette for residual blades.

In the following embodiments, the same elements as those of the conventional knife feeding device shown in FIG. 9 and subsequent figures are designated by the same reference numerals and the description thereof will be omitted.

Further, the following embodiments are merely specific examples of the present invention, and are not of the nature to limit the technical scope of the present invention.

The material supply apparatus according to this embodiment shown in FIGS. 1 and 2.
_8a is provided adjacent to the material feeding device 7 in the conventional device, and is horizontally placed vertically in a plurality of knife cassettes 102, 102, ... Mounted on a cassette table 101 provided inside a pedestal 100. For taking out the knife materials housed in layers from the knife cassette 102 and feeding them to the material feeding position 103 of the material feeding device 7 (Figs. 18 to 20) not shown in Fig. 2. Is. Knife material W'in FIG. 2 indicates the knife material supplied to the material supply position 103.

The knife cassette 102 is shown in detail in FIGS. 4 to 6, and has a plane shape substantially the same as that of the knife material W so that the long strip-shaped knife material W can be stacked vertically while keeping it horizontal. bottom plate 102 _a and, the bottom plate 102 _a side plate 102 rises vertically from both ends of the _b, 102 _b and, the four projecting inwardly at right angles from the front and rear end portions of the side plate 102 _b guide plate 102 _c of
It is equipped with as a main constituent element.
The upper end of the 2 _b, 102 _b, the gripping portion 102 _d for easy to handle by hand the knife cassette 102 is formed. Therefore, the knife material W to be housed in the knife cassette 102 guide plate 102 _c, 102 in plan view U-shaped constituted by _c where the two ends as shown in FIG. 4 protrudes from both ends to the side plate 102 _b Supported by the iron plate. Since the guide plate 102 _c, 102 _c its intermediate portion is omitted, damage to the cutting edge of the knife material W contained therein is prevented. Further, a portion of the bottom plate 102 _a, as shown in FIG. 6, the opening 102 _e is formed, the openings 102 _e may knife material to the knife cassette 102 as shown in FIG. 1 are accommodated This is for inserting the detector 104 of the limit switch LS ₁ for detecting whether or not the switch is on.

The limit switch LS ₁ corresponds to each mounting position of the plurality of knife cassettes 102, 102, ...
The number of 2 is attached to the bracket 105 fixed to the pedestal.

Next, the structure of the material suction head 106 for sucking and conveying the knife material will be described with reference to FIG. First
The figure shows only the left half of the left and right devices with the center line 107 as the center, and the material suction head 106 is attached to the suction head attachment angle 108 extending to the left and right. In the center of the suction head mounting bracket 108, attached elevating cylinder 109 is oriented vertically, Its cylinder rod 109 _a, a sliding rod 109 _c having a stepped portion 109 _b at the tip
Is attached. Above the sliding rod 109 _c is sliding tube 109 _d for holding the stepped portion 109 _b slidably has slid is mounted to the vertical direction. The above sliding tube 109 _d rubber magnet mounting plate 110 is fixed symmetrically about said sliding cylinder 109 _d.

A plurality of rubber magnets 111 having a flat attracting surface are attached to the lower surface of the rubber magnet mounting plate 110. In addition, the rubber magnet mounting plate 110 has a pair of separating cylinders 1
Twelve are mounted vertically via brackets 113. A separation plate 115 is attached to the piston rod of the separation cylinder 112 via a bracket 114. A cutout hole 116 is formed in the separation plate 115 so as to be loosely fitted in the rubber magnet 111, corresponding to the rubber magnet 111.

Furthermore, metal detector 118 via a bracket 117 to the rubber magnet mounting plate 110 is mounted a pair to the left and right target, detecting end 118 _a is the rubber magnet mounting plate 110 of the metal detector 118
Also, a through hole 119 penetrating the rubber magnet 111 is inserted through play. The lower end surface of the detection end 118 _a, in a state where the pull-off cylinder 112 is drawn is shown in FIG. 1, it has a lower surface flush with the rubber magnet 111.

Therefore, as shown in FIG.
The knife material W magnetically attracted to the lower surface of the 111 moves the separating cylinder 112 and the separating plate 115 descends to the position 115 'shown by the chain line in FIG.
Pulled away from 11.

The material suction head 106 as described above is conveyed in a direction perpendicular to the longitudinal direction of the knife material W accommodated in the knife cassette 102 by a suction head conveying layer (hereinafter referred to as a conveying device 120) supported by the gantry 100. It

Next, the transport device 120 will be described mainly with reference to FIG. As shown in FIG. 2, on the pedestal 100, as described above, a pair of horizontal guide rods 121 are supported in a direction orthogonal to the longitudinal direction of the knife material W in the knife cassette 102. The guide rod 121 has
A slide bearing 122 is slidably mounted, and the suction head mounting angle 108 is supported by the slide bearing 122.

Further, on the pedestal 100, the sprocket 124 around which the endless chain 123 stretched in parallel with the guide rod 121 is wound.
Is attached to each of the front, rear, left and right, that is, 4 in total
The sprocket 124 is driven by a carry motor 125 mounted on the pedestal 100.

The slide bearing 122 is attached to the endless chain 123 via a pin 126. Therefore, the transport motor 125
When the endless chain 123 is driven to travel in the right or left direction in FIG. 2 by the above, the slide bearing 12 attached to this is driven.
2 and suction head 106 fixed to this slide bearing 122
Is driven in the direction in which the knife cassettes 102, 102, ... Shown in FIG.

Further, the knife cassettes 102, 102 described above are provided with positioning blocks 128, 128, ... Installed on the cassette base 101.
The mounting position is determined by. As shown in FIG. 1, the bracket 127 attached to the pedestal 100 is provided with cassette position detection sensors PI, PI, ... Corresponding to the respective knife cassettes 102, 102 ,. ing. The cassette position detection sensor PI detects the passage of the detection piece 130 fixed to the suction block mounting angle 108 as shown in FIG. 1, so that the material suction head 106 comes to the position of the corresponding knife cassette 102. This is for detecting that, and is constituted by an optical sensor shielded by the detection piece 130.

Next, the operation of the knife material feeder shown in FIGS. 1 and 2 will be described with reference to FIG. In the following description, S1, S2, ... Indicate the processing procedure (step) numbers.

First, when the control device issues a supply work command to the following material feeding device for a specific knife material (S1), the specified knife material W is stored in the specified knife cassette 102. It is determined whether or not (S2). This judgment is made by detecting whether or not the limit switch LS ₁ shown in FIG. ₁ is pushed by the knife material and turned on. If the limit switch LS ₁ is not on, knife material cannot be fed, so
The machine base is stopped, and a separate alarm or monitor informs that there is no knife material (S3).

When the limit switch LS ₁ is turned on and it is determined that the predetermined knife material is stored in the predetermined knife cassette 102, the conveyor motor 125 is rotated to drive the endless chain 123, The slide bearing 122
The material suction head 106 supported by is moved toward a predetermined mounting position of the knife cassette 102 (S4). When the suction head 106 reaches the position of the designated knife cassette 102 in this way, the cassette position detection sensor PI provided corresponding to the designated knife cassette 102 is operated by the detection piece.
130 will block light. In this way, it is detected from the signal from the cassette position detection sensor PI that the material suction head 106 has reached the position of the designated cassette, and the rotation of the carry motor 125 is stopped (S5).

In this way, when it is stopped above the knife cassette 102 material suction head 106 is designated, the elevating cylinder 109 is operated in step S6, on the piston rod 109 is extended its piston rod 109 _{a a} Attached rubber magnet mounting plate 110, rubber magnet 111, separation cylinder
The detaching plate 112 and the detaching plate 115 descend as they are shown in FIG. 1 and are inserted into the designated knife cassette 102. Eventually rubber magnet 111 abuts the uppermost layer of the knife material W of the knife material W stocked side by side horizontally layered on the bottom plate 102 _a of the knife cassette 102 by the insertion.
In the lifting cylinder 109, the rubber magnet 111 is a knife material W.
To after contact with, but further to continue the operation, at this time, the relative position between the rubber magnet 111 and the rubber magnet mounting plate 110 that has stopped, the piston rod 109 _a descending, the piston rod
109 stepped portion 109 _b of the sliding rod 109 _c is sliding tube 10 which is mounted on _a
Absorbed by relative sliding within 9 _d .
In this way, when the lifting cylinder 109 descends to the lowest position, the metal detector 118 detects the metal, that is, the knife material W.
It is determined whether or not is detected (S7). At this time, since the rubber magnet 111 is in contact with the knife material W as described above, the metal detection end portion 118 flush with the lower surface of the rubber magnet 111.
Naturally, _a is in contact with the knife material, and the presence of the knife material is detected. However, as shown in FIG. 3, the elevating cylinder 109 may stop descending when the metal detector 118 detects the knife material W.

In step S7, when the metal detector 118 detects that the knife material W has been detected, that is, that the rubber magnet 111 has adsorbed the knife material W, the lifting cylinder is moved.
109 operates in the opposite direction, and the rubber magnet mounting plate 110, the rubber magnet 111 and the knife material W attracted to the rubber magnet 111 are integrally raised to the upper limit position shown in FIG. 1 (S
8).

In this way, when the suction head 106 reaches the upper limit position, the conveyance motor 125 is driven and is represented by the suction head mounting angle 108 to which the material suction head 106 is mounted.
It is moved to a position 108 'shown by a chain double-dashed line in the figure, that is, above the knife material feeding position 103 to the knife material feeding device (S9).

Then, the lifting cylinder 109 again pushes the piston rod 109
_It is extended to the maximum extension position of a, that is, the lowest limit position of the rubber magnet mounting plate 110. At this time, the knife material W which is still attracted to the rubber magnet 111 is placed at the material supply position 103 as indicated by W'in FIG. In this case, the knife material W having stopped the material supply position 103, the difference then the relative position between the piston rod 109 _a of the elevating cylinder 109 to continue slightly downward, the stepped portion 109 in the sliding cylinder 109 _d It is absorbed because _b is slidable (S10).

Further, thereafter, the rubber magnet mounting plate 110 is attached to the bracket 113.
The pull-off cylinder 112 attached via
As described above, the separating plate 115 is moved from the position shown by the solid line in FIG. 1 to the position shown by the chain double-dashed line 115 ', whereby the knife material attracted to the rubber magnet 111 is separated from the rubber magnet 111. . At this time, the amount of rise of the rubber magnet mounting plate 110 due to the movement of the knife material W is the sliding cylinder 109.
It is absorbed by the sliding of the stepped portion 109 _b in the _d (S11).

Thus, when the knife material W is separated from the rubber magnet 111 and placed on the material supply device 103 as described above,
In step S12, the elevating cylinder 109 is operated, and the material suction head 106 separated from the knife material W is lifted to its upper limit position shown in FIG. At this point the separation cylinder
112 returns to its original state.

After that, the transport motor 125 is driven, and the material suction head 106
Is transported to its reference position, eg above the knife cassette 102 containing the most commonly used knife material.

In this way, when the material suction head 106 returns to the predetermined reference position, the knife material supply operation of S1 to S12 is repeated waiting for the next work command.

Next, a processing procedure for discharging the residual blade to the cassette for the residual blade by using the knife material supply device will be described with reference to FIG. 3 (b). Here, N1, N2, ... Are numbers of processing procedures.

When the shearing process of the knife material is completed while the knife material is being fed by the material feeding device, a residual blade discharge work command is issued by the control device (N1). Based on this, the conveyance motor 125 is operated and the material suction head 106 is moved to a position above the supply position 103 of the material feeding device (N2). Then, the lifting cylinder 109 is actuated to move the material suction head 106.
Moves to its lower limit position, and the residual edge W'is attracted to the rubber magnet 111. The adsorption of the residual blade is detected by the metal detector 118.

When the suction of the residual blade is completed, in step N4, the elevating cylinder 109 is operated in the contracting direction, and the material suction head 106 ascends to the upper limit position while sucking the residual blade.

After that, the material suction head 106 is transported by the operation of the transport motor 125, and is moved to a position above the designated knife cassette for the residual blade (N5).

At this position, the elevating cylinder 109 is actuated again in the extending direction, the material suction head 106 is inserted into the residual blade cassette, and stopped at a predetermined lower limit position (N6).

When the elevating cylinder 106 has finished descending, the separating cylinder 112 is actuated in the extending direction, and the residual blade is moved to the rubber magnet 111.
(N7).

When the separation of the residual blades is completed, the elevating cylinder 109 is operated in the contracting direction, and the material suction head 106 moves up to the upper limit position shown in FIG. 1 while leaving the residual blades in the residual blade cassette (N8). At this time, the detaching cylinder returns to the original state. When the discharge of the residual blades into the cassette for the residual blades is completed in this way, at N9, the transport motor 125 is operated, the material suction head 106 is transported to the predetermined reference position, and waits for the next work command.

The air cylinder 131 shown in FIG.
When the knife material W'placed on 03 is fed, that is, when the knife material W is placed on the material feeding position 103 or when the knife material W'is sheared. This is for elastically urging the nylon member 133 that holds the knife material W ′ with the holding portion 132 in the direction of arrow 134. By holding the cutting edge portion of the knife material W ′ with the nylon member 133, The purpose is to protect the cutting edge of the knife material W'and hold the knife material W'to prevent movement during shearing.

The nylon member 133 is an example, and the knife material may be replaced with an appropriate resin material that does not damage the cutting edge.

Further, instead of the rubber magnet 111, an appropriate permanent magnet or electromagnet can be used. Furthermore, in order to prevent the blade edge of the knife material from being damaged, it is also effective to attach an appropriate resin coating or resin plate to the inner surface of the knife cassette.

Furthermore, since the knife cassette for residual blades must be capable of accommodating residual blades of various lengths from long residual blades to short residual blades, only the cassette end portion as shown in FIGS. in the knife cassette 102 'provided with the guide plate 102 _c, the Zanha is not appropriate because falls off from the knife cassette.

Figure 7 is 'shows an example of internal accommodated the remaining blades spill lest guide plate 102 _c' remaining blade knife cassette 102 as described above extend seamlessly from the right edge of the knife cassette to the left Has been done.

If two or more residual blade cassettes are easily prepared as the residual blade cassette 102 'depending on the type of the residual blade,
It is possible to distinguish the residual blades that are simply discarded from the residual blades that are reused, and to organize the residual blades that are reused according to their type and store them in the residual blade cassette. The processing can be performed extremely efficiently.

〔The invention's effect〕

Since the present invention is configured as described above, even when the knife material is wavy or partially notched, the knife material is kept in an ideal state with its parallelism substantially maintained. It is possible to reliably carry out suction and conveyance without a suction mistake. Therefore, a knife cassette can be used for accommodating various kinds of knife materials in a narrow space, and arbitrary knife materials can be fed to the knife material feeder without any feeding error, which is extremely practical.

Moreover, since the residual blade after the shearing process can be neatly accommodated in the knife cassette for the residual blade and discharged, the blade edge of the residual blade can be damaged or the residual blade can fall into pieces and be discharged. There is no problem that it takes time.

[Brief description of drawings]

FIG. 1 is a schematic front view of a knife material feeding device according to an embodiment of the present invention, FIG. 2 is a side view of the same, and FIGS. 3 (a) and 3 (b) are flow charts showing the operation procedure of the feeding device. 4 to 6 show a knife cassette, FIG. 4 is a front view thereof, FIG. 5 is a side view thereof, FIG. 6 is a partial plan view, and FIG. 7 is a knife cassette for residual blades. And FIG. 8 is a perspective view showing the usage state of the knife,
Figs. 25 to 25 show a knife forming apparatus which is the background of the present invention, and Figs. 9 and 10 show a schematic front view and a schematic plan view showing the whole structure of the knife forming apparatus, and Figs. 11 to 13. The figure shows the entire shearing process section of the molding machine. Fig. 11 is its front view, Fig. 12 is its plan view, Fig. 13 is its longitudinal sectional view, and Fig. 14 is seen from the shearing machine side. Fig. 15 to Fig. 17 relate to a conventional material feeding device, Fig. 15 is a front view thereof, Fig. 16 is a partial side view thereof, Fig. 17 is a side view of essential parts thereof, and Fig. 18 is a side view thereof. Figures 22 to 22 explain the material feeding device of the shearing process section. Fig. 18 is a side view thereof, Fig. 19 is a plan view of the same, Fig. 20 is a cross-sectional view of essential parts thereof, and Fig. 21. FIG. 22 and FIG. 22 are transverse cross-sectional views of the main part for explaining the drive part of the guide rail and its movement, and FIGS. 23 to 25 are for explaining the cutter table part of the shearing device. Those, FIG. 23 is a front view, Figure 24 is a plan view, FIG. 25 is its partial cross-sectional side view. [Explanation of reference symbols] 8 _a … Material supply device 102… Knife cassette 103… Material supply position LS ₁ … Limit switch 106… Material suction head 109… Lifting cylinder 111… Rubber magnet 112… Separation cylinder 115… Separation plate 118… Metal detector 120… Suction head transport device 125… Transport motor 128… Positioning block W, W ′… Knife material PI… Cassette position detection sensor

Claims (2)

[Claims] 1. A sheet feeding knife material feeding device for feeding a long thin plate-shaped knife material, which is stacked and arranged in layers, to a subsequent material feeding device. A knife cassette for stacking the knife cassette on top and bottom, (B) a cassette mounting table for positioning and mounting the knife cassette, and (C) a magnet having a flat attracting surface for magnetically attracting the knife material. And a material adsorbing means for separating the knife material adsorbed by the material adsorbing means from the material adsorbing means, and (D) the adsorbing head including the knife cassette and the material feeding device. And (E) when the material suction head is moved to a position above the selected knife cassette by the head transport means. At the point, the material suction head is lowered so that the knife material in the knife cassette is sucked by the material suction means and the material suction head is raised, and the head transport means moves the material suction head above the supply position of the material feeding device. A knife material supply device for sheet processing, comprising: a material supply means for lowering the material suction head at the time point and separating the knife material from the material suction means by the material separation means to supply the material to the material feeding means. 2. A (A ') knife material is horizontally fed in a sheet processing knife material feeding device for picking up long thin plate-shaped knife materials arranged in layers and feeding them one by one to a subsequent material feeding device. The knife cassette for the residual blades which is stacked in layers in the upper and lower direction, (B ') the cassette mounting table for the residual blades for positioning and mounting the knife cassette for the residual blades, and (C') the magnetic material for the knife. (D ') a material adsorbing head comprising a material adsorbing means having an adsorbing surface which is adsorbed by a flat magnet, and a material separating means for separating the knife material adsorbed by the material adsorbing means from the material adsorbing means. ) Head conveying means for reciprocating the suction head between the residual blade knife set and the material feeding device; (E) The material suction head is moved to the material feeding device by the head conveying means. When the material suction head is lowered, the material suction head is lowered so that the knife material at the supply position is sucked by the material suction means and the material suction head is raised, and the head suction means moves the material suction head to a predetermined position. When the material suction head is moved to a position above the remaining blade knife cassette, the material suction head is lowered, and the knife material is separated from the material suction means by the material separating means to supply the residual blade discharging means to the residual blade knife cassette. A knife material supply device for sheet processing, comprising: