JPH0671098U - Punching die for flat board punching machine - Google Patents

Abstract

(57) [Summary] [Purpose] To be applicable to both single punching and feed punching in the punching die of flat plate punching machine. [Structure] The front frame rod 35, the side frame rods 36 and 37, and the rear frame rod 38 constitute a square fitting portion 39, and the mounting plate 33 of the die main body 31 is fitted and fixed to the fitting portion 39. Formwork 32
To provide. Both side frame rods 36 and 37 of the mold 32 are fixed in parallel to each other at one end thereof to both ends of the front frame rod 35. Rear frame rod 3
8 is configured to be bridged between the side frame rods 36 and 37 so that it can be brought into and out of contact with the front frame rod 35 and can be fixed at an arbitrary position. The rear frame rod 38 is fixed at a position approaching the mounting plate 33 fitted to the fitting portion 39, and the mounting plate 33 is pressed against the front frame rod 35 with the screw 45 to fix the die main body 31 to the mold 32.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, a lower plate having a face plate on the upper surface thereof is disposed opposite to the lower part of a head having a punching die on the lower surface, and the lower plate is pushed up or the head is pushed down to automatically. In a flat plate punching machine configured to perform punching (with ruled lines) of thick paper, veneer, and other materials to be punched that are fed between the punching die and the face board by the feeding device, The present invention relates to a punching die to be attached.

[0002]

[Prior art]

 The flat plate punching machine is generally constructed as shown in FIGS. Therefore, the configuration and the like will be described with reference to FIG. In the figure, 1 is a base, 2 is a head provided above the base 1, and a punching die A is attached to the lower surface of the head 2. Reference numeral 3 denotes a lower plate which is provided with a face plate 4 on the upper surface thereof and which is arranged between the base 1 and the head 2 so as to be vertically movable relative to the head 2. The lower plate 3 is vertically moved by a crank mechanism 5 or the like. It is configured as follows. Reference numeral 6 denotes an automatic feeding device. The automatic feeding device 6 has sprockets 7 and 8 mounted on the rotary shafts 9 and 10 on both sides of the flat plate punching machine so as to be mounted between the sprockets 7 and 8. Is a chain, a timing belt, or the like, in which endless strips 11, 11 are hung and arranged in parallel, and a bar 12 is installed between the strips 11, 11 at a predetermined interval. A clip 13 is attached, and both endless strips 11, 11 are configured to endlessly rotate in the front-rear direction between the top and bottom of the head 2 of the punching machine. Then, the feeding device 6 is intermittently driven at a timing set in association with the vertical movement of the lower plate 3, and the clip 13 of each bar 12 causes the front end of the punched material 14 such as thick paper or veneer. It is configured so that it is sandwiched and sequentially conveyed to the punching die side, and when the feeding device 6 is stopped, the lower platen 3 is pushed up and the punching die A performs punching. Reference numeral 15 in the figure denotes a guide rod for guiding the lower plate 3.

By the way, as shown in FIG. 9, the conventional punching die B has a punching die body 21 in which cutting blades (not shown) are attached to a mounting plate 22 such as a square veneer plate, front and rear frame rods 24, 25, 26, and 27, and a mold 23 formed in a rectangular frame shape, the die main body 21 is fitted in the mold 22, and a screw 28 is passed through a screw hole formed in the frame rod 27 on the rear side. The mounting plate 22 is screwed and is pressed against the front frame rod 24 by the tip of the screw 28 to fix the mounting plate 22 to the mold 23.

The above-mentioned conventional punching die B is, so to speak, for one-time punching, that is, the endless strip 11 is intermittently rotated by the interval width between the bars 12 and 12 to cut one sheet of material to be punched. It is configured so that it can be punched in a single process. It is suitable for punching a large amount of blanks with the same punching die (large lot), but punches a small amount of blanks. There are the following problems when punching (small lots).

In the flat plate punching machine, when setting the punching die main body, it is necessary to plant the cutting blades on the mounting plate and work with rubber and unevenness In this case, it takes time and labor to plant the cutting edge, attach the rubber and remove unevenness, and the manufacturing cost increases. Therefore, in the case of a small lot, the die cost becomes expensive.

Therefore, the following means can be considered as a method for solving this problem. That is, for example, in the case of 9 sides (one piece of material to be punched 9 times), conventionally, the cutting edge die of the die cutting body is formed in 3 rows of 3 sides and once When removing, this is a 3-sided 1-line 3-sided mold, and if this 3-sided 1-line mold is divided into 3 processes and sent three times (see Fig. 7), the mold allowance and set time are about 1 / It becomes possible to make it about 3.

However, in the conventional punching die, as described above, the formwork 23 is formed in the shape of a quadrangle by the frame rods 24, ... Then, at the time of pulling out the second time and the third time, the next bar 12 enters the front side of the frame rod 27 on the rear side of the mold 23 (see FIG. 8B). Therefore, the frame rod 27 on the rear side collides with the bar 12 and becomes an obstacle, so that the second and subsequent punching cannot be performed.

[0008]

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a punching die for a flat plate punching machine that can be applied to both single-shot punching and feed-punching. It is intended.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention relates to a punching die to be mounted on the lower surface of the head of a flat board punching machine, in which a punching die body in which a cutting edge is attached to a square mounting plate, a front frame rod, both side frame rods and a rear frame rod is used. Has a square fitting part, and has a formwork for fitting and fixing the mounting plate of the die main body to this fitting part. Both side frame rods of this formwork have one end with a front frame rod. It is fixed to both ends of and parallel to each other, and the rear frame rod is bridged between the both side frame rods so that it can be adjusted in contact with and separated from the front frame rod and fixed at any position. It is characterized by being configured so that it can.

[0010]

[Action]

 According to the present invention, the rear frame rod is fixed to the rear end portions of the both-side frame rods, and the die main body is formed in a size corresponding to the form frame. Can be removed once. In addition, when sending out, it becomes as follows. That is, for example, in the case where the punching is performed three times, the width of the die main body in the front-rear direction is formed to have a size of about 1/3 of the length of the side frame rod, and this is fitted into the die. Then, the rear frame rod is brought close to the rear end of the die main body and fixed at that position, and the die main body is fixed to the die frame. If this punching die is attached to the lower surface of the head and is fed three times, the next bar will enter the mold when the second and third punches are made, but the rear frame rod is located in front of the next bar. It does not get in the way (see Figure 8A). Therefore, the punching after the second time can be smoothly performed.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a punching die of a flat plate punching machine according to this embodiment, FIG. 2 is a perspective view showing a state in which the punching die main body and the rear frame rod are removed, and FIG. 4 is a schematic plan view of a flat plate punching machine to which the punching die is attached, FIG. 5 is a side view of the same, and FIG. 6 is an enlarged side view of the punching die mounting portion. FIG. 7 and FIG. 7 are explanatory views showing the step of punching out, and FIG. 8 is an explanatory view showing the action of punching out by the punching die according to the present invention and the punching die by the conventional punching die.

In FIGS. 1 to 8, the punching die A of the flat plate punching machine of this embodiment is such that the punching die body 31 and the punching die body 31 are fitted and fixed to each other, and the lower portion of the head 2 of the flat board punching machine is used. The guide frame 16 (see FIG. 6) formed in the above is engaged with and attached to the form 32.

The punching die main body 31 has an arbitrary die formed by arranging a cutting blade 34 (see FIG. 3) on a mounting plate 33 made of, for example, a square veneer, with the cutting edge portion protruding. The size of the attachment plate 33 of the die-cutting main body 31 is set according to its application. In this embodiment, the width of the attachment plate 33 in the front-rear direction is determined by the length of a side frame rod of the form 32, which will be described later. It is formed in a rectangular shape having a size of about 1/3, and is adapted to be used for, for example, three times of feeding. In this case, the width of the plate 33 in the front-rear direction is about half the width of the side frame rod when the punching main body is configured to be fed twice, and the same as above when the punching main body is configured to be punched once. May be formed slightly smaller than the side frame rod.

The mold 32 includes a front frame rod 35 made of metal or the like, side frame rods 36, 37, and a rear frame rod 38 to form a square fitting portion 39, and the mounting plate 33 is attached to the fitting portion 39. It is configured to fit. Both side frame rods 36 and 37 of the form 32 are fixed in parallel to each other with one end fixed to both ends of the front frame rod 35, and the rear frame rod 38 is bridged between the both side frame rods 36 and 37. The front frame rod 35 is configured to be adjustable in contact with and separated from the front frame rod 35, and can be fixed at any position. In this embodiment, engaging notches 40 are formed in the upper inner half portions of the side frame rods 36, 37 from the rear ends of the rods 36, 37 toward the front end, and both notches 40 are appropriately spaced in the longitudinal direction. To form an arbitrary number of screw holes 41, and to form engagement recesses 42 that engage with the above-mentioned notches 40 at both ends of the rear frame rod 38, and bridge the rear frame rod 38 between both engagement recesses 42. Then, the screw 43 is used for fixing. As a result, the rear frame rod 38 can be fixed by arbitrarily adjusting the distance to the front frame rod 35. In this case, the fixing means of the rear frame rod 38 to the side frame rods 36 and 37 can be changed to a structure other than the illustrated embodiment.

The mold 32 is attached by engaging with the guide rail 16 formed in the lower portion of the head 2 of the flat plate punching machine, and therefore, the lengths of the side frame rods 36 and 37 are the guide rails 16 and 16. It is formed to a size corresponding to the distance between them. Further, the bar 12 installed between the strips 11 of the automatic feeding device 6 is designed to run inside the space between the side frame rods 36 and 37. Therefore, between the side frame rods 36 and 37. The distance is formed longer than the length of the bar 12.

The die main body 31 fits the mounting plate 33 to the fitting portion 39 of the mold 32 and fixes it to the mold 32. In this embodiment, the rear frame rod 38 has an appropriate space. To form an arbitrary number (four in the figure) of screw holes 44, screw 45 through the screw holes 44, and press the mounting plate 33 against the front frame rod 35 at the tip of the screw 45 to mount the mounting plate 33. It is configured to be fixed to the form 32. The fixing means of the mounting plate 33 can be changed to a structure other than the illustrated embodiment.

The mold 32 is mounted by engaging with the lower rail 16 of the head 2 as described above. In this embodiment, the front end upper surface and the rear end upper surface of the side frame rods 36, 37 of the mold 32 are attached. The mounting rods 46 and 47 are bridged in between and fixed by screwing or other means, and an arbitrary number of rollers 48 and 49 are attached to both mounting rods 46 and 47, and these rollers 48 and 49 are connected to the guide rails 16 and 47. It is configured to be engaged with 16 to be attached. The mounting means for the mold 32 is of any structure, depending on the structure of the mold mounting portion of the flat board punching machine.

The punching die of the flat plate punching machine of the embodiment is configured as described above. Next, for convenience, explanation will be given by taking three times feeding with nine sides as an example. To do. In this case, the die main body 31 is set to a three-sided die having three rows and one row, and this is fixed to the form frame 32 and attached to the lower surface of the head 2 as shown in FIG. Then, the intermittent drive of the feeding device 6 is adjusted to feed three times, that is, the material to be punched 14 is intermittently transferred into the punching die A in three times, and the bar 12 is fed once. Adjust the intermittent movement distance.

Then, when the front end of the material to be punched 14 is clamped by the clip 13 of the bar 12 and the feeding device 6 is driven (the punching machine is also associated movement), the material to be punched 14 reaches a predetermined position in the mold A. It is fed and stopped, and the lower platen 3 is pushed up during this stop, and as shown in FIG. 7A, the punching process of the first row (the portions corresponding to the numbers 1 to 3 in FIG. 7) is performed. Next, when the feeding device 6 is driven again and the punching location of the second row of the material 14 to be punched (portion of numbers 4 to 6 in FIG. 7) reaches the first row (portion of numbers 1 to 3 above). At this time, the lower platen 3 is pushed up during this stop and the second row punching is performed. Then, the feeding device 6 is driven again and stopped at a predetermined time, punching is performed on the third row (portions 7 to 9 in FIG. 7), and as shown in FIG. Is divided into 3 times and sent out. Then, after the material is fed out as described above, the next bar 14 is fed to the die A side by the next bar 12 and fed out in the same manner as above.

In the case of three or more feeding punches, two feeding punches, or one punching, the die of the punching die main body 31 is set so as to correspond to it, and the distance between the materials to be punched by the feeding device is set. It suffices to adjust the distance for each missing transfer.

[0021]

[Effect of device]

 According to the present invention, it is possible to obtain a punching die for a flat plate punching machine which can be applied to both single punching and feed blanking.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a punching die of a flat board punching machine according to the present invention.

FIG. 2 is a perspective view showing a state where a punching die main body and a rear frame rod are removed from the same as above.

FIG. 3 is a vertical cross-sectional view showing an enlarged part of the punching main body.

FIG. 4 is a schematic plan view of a flat plate punching machine to which the same punching die is attached.

FIG. 5 is a schematic side view of the same flat plate punching machine.

FIG. 6 is an enlarged side view showing a mounting portion of a punching die of the same punching machine.

FIG. 7 is an explanatory diagram showing a step of feeding and removing.

FIG. 8 is an explanatory view showing the action of the punching die by the punching die according to the present invention and the punching die by the conventional punching die for comparison.

FIG. 9 is a perspective view showing a punching die of a conventional flat plate punching machine.

[Explanation of symbols]

 31 Punching main body 32 Form 33 Mounting plate 35 Front frame rod 36, 37 Side frame rod 38 Rear frame rod 39 Fitting part 45 Screw

Claims (1)

[Scope of utility model registration request] 1. A punching die to be attached to the lower surface of the head of a flat board punching machine, in which a square die is formed by attaching a cutting edge to a square mounting plate, a front frame rod, both side frame rods and a rear frame rod. And a frame for fitting and fixing the mounting plate of the die main body to this fitting part, and both side frame rods of this frame have one end fixed to both ends of the front frame rod. The rear frame rods are arranged parallel to each other, and the rear frame rods are bridged between the both side frame rods so that the rear frame rods can be contacted and separated from the front frame rods and can be fixed at arbitrary positions. A punching die for flat plate punching machines.