JPH0224637Y2 - - Google Patents

Description

[Detailed explanation of the idea] <Industrial application field> The present invention relates to an automatic flat plate punching machine.

<Prior art> Conventionally, an automatic flat plate punching machine has a punching mechanism for punching a desired shape from a material to be punched; a clamping piece having; an expanding mechanism capable of expanding between opposing parts of the clamping piece until the remaining part can be taken in and out; Some machines are equipped with a dispensing mechanism for dispensing from between opposing parts; and a conveying mechanism for sequentially conveying the clamped piece to a punching material supply position, a punching mechanism position, and a dispensing mechanism position. Thereby, the material to be punched is continuously supplied to obtain a product having a desired shape.

The payout mechanism of the above conventional automatic flat plate punching machine is as follows:
It was provided with a dispensing piece that urges the remaining part in the dispensing direction from between the opposing parts of the clamping piece. In this case, the biasing of the remaining portion by the dispensing piece is performed by giving the dispensing piece a reciprocating motion toward and away from the remaining portion using a crank mechanism.

<Problems to be Solved by the Invention> When the opposing portions of the clamping pieces are not expanded by the expanding mechanism, the dispensing piece cannot be disbursed even if it is urged into contact with the remaining portion. Therefore, it is necessary to match the timing of the expansion of the opposing portions of the holding pieces by the expansion mechanism with the timing of the reciprocating movement of the dispensing piece by the crank mechanism.
However, when used for a long period of time, it was unavoidable that the timing would become inconsistent due to mechanical accuracy. Particularly, when the conveyance speed of the clamping piece by the conveyance mechanism is increased in order to shorten the processing time, the timing becomes more inconsistent. This required time and effort to adjust the timing, lowering work efficiency, and caused problems such as the dispensing pieces colliding with the remaining portion or the conveyance mechanism, resulting in failure or damage.

In view of the above, the present invention is capable of dispensing the remaining portion from between the opposing parts of the clamping piece by the dispensing mechanism, regardless of the timing at which the spreading mechanism spreads the opposing parts of the clamping piece. Moreover, it is an object of the present invention to provide an automatic flat plate punching machine in which the structure of the dispensing mechanism itself can be simplified, improving work efficiency, preventing breakdowns and damage, and reducing manufacturing costs.

<Means for Solving the Problems> The technical measures taken by the present invention to solve the problems of the prior art are characterized by a punching mechanism for punching out the desired shape part 37 from the material 5 to be punched. 10 and;
A clamping piece 1 having an opposing portion that clamps the remaining portion 19 other than the desired shape portion 37 of the supplied punched material 5
5 and; an expansion mechanism 27 that can expand the space between the opposing parts of the clamping piece 15 until the remaining part 19 can be taken in and out.
and; a dispensing mechanism 22 for dispensing the remaining portion 19 clamped by the clamping pieces 15 from between the opposing parts of the clamping pieces 15 expanded by the expanding mechanism 27;
In the automatic flat plate punching machine 1, the automatic flat plate punching machine 1 is equipped with a conveyance mechanism 14 that sequentially conveys the punched material 5 to the punching material 5 supply position, the punching mechanism 10 position, and the dispensing mechanism 22 position.
The dispensing mechanism 22 is a rotating body 23 that is rotationally driven.
and a flexible dispensing piece 25 attached to the rotating body 23, and the dispensing piece 25 is attached to the rotating body 23.
3, the remaining portion 19 is brought into contact with the remaining portion 19 so as to urge the remaining portion 19 in the direction of discharging the clamping piece 15 from between the opposing portions.

<Function> In a state where the remaining portion 19 is clamped without being expanded by the expanding mechanism 27 between the opposing portions of the clamping piece 15, the dispensing piece 25 is moved to the remaining portion 19 by the rotation of the rotating body 23. bring it into contact. Then, the remaining part 1
9 is urged by the dispensing piece 25 in the dispensing direction from between the opposing parts of the clamping piece 15, but is not dispelled because it is held between the opposing parts of the clamping piece 15. In this state, since the dispensing piece 25 is flexible, it comes into contact with the remaining portion 19 and becomes bent. Thereafter, when the gap between the opposing parts of the clamping piece 15 is expanded by the expanding mechanism 27, the remaining part 19 is ejected from between the opposing parts of the clamping piece 15 by the dispensing piece 25.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 shows the overall configuration of an automatic flat plate punching machine 1, with reference numeral 2 indicating the punching machine main body, 3 indicating a feeding device, and 4 indicating a conveyor provided between both 2 and 3.

The feeding device 3 is a well-known device that feeds vertically stacked materials 5 to be punched, such as cardboard, onto a conveyor 4 one by one.

The conveyor 4 conveys the material 5 to be punched to the punching mechanism main body 2.

In the punching machine main body 2, a cutting device 6 is a well-known cutting device that sandwiches the material 5 to be punched between a fixed piece 7 and a movable piece 8 that reciprocates up and down and cuts into a desired shape. Reference numeral 9 denotes a punching device which reciprocates up and down by a crank mechanism, and cuts a portion of the material 5 to be punched into a desired shape surrounded by a notch (desired shape portion).
This is a well-known method in which it comes into contact with the object and is removed. The cutting device 6 and the punching device 9 constitute a punching mechanism 10 that punches out a desired shape from the material 5 to be punched.

In addition, in the punching machine main body 2, a pair of chains 12 are provided in the width direction (direction perpendicular to the plane of the paper in the figure), and chains 12 are wound around sprockets 11, 11 at the left and right ends in the figure, and the sprockets 11 are connected to the arrow A in the figure. It can be rotated and stopped in any direction.

In FIGS. 2 to 6, reference numeral 13 denotes a feed bar, both ends of which are connected to the chain 12 at both ends in the width direction, and move around the chain 12 as the sprocket 11 rotates. The feed bar 13, chain 12, and sprocket 11 constitute a conveyance mechanism 14.
Note that 39 is a cam follower for preventing deflection of the feed bar 13.

Numeral 15 are holding pieces arranged in large numbers in the width direction.
It is formed of upper and lower members 16 and 17 that face each other vertically in the state shown in FIGS. 5 and 6. The clamping piece 15 is made of a steel plate that can be elastically bent, and the upper and lower members 16 and 17 are overlapped, and one end on the right side in the figure is fixed to the lower end of the feed bar 13 with a bolt 18. As a result, the opposite ends of the upper and lower members 16 and 17 on the left side in the drawing are in close contact and can be elastically expanded, and the material 5 to be punched has a desired shape between the opposite parts. The remaining part 19 other than the part can be held. A through hole 20 is provided through the upper member 16 as shown in the third figure, and a pin 21 that projects upward through the through hole 20 is fixed to the upper surface of the lower member 17.

Reference numeral 22 denotes a dispensing mechanism, which includes a shaft-shaped rotating body 23 that is supported in the width direction in the form of a bridge at the central upper end position of the punching machine body 2 and below the chain 12, and is constantly driven to rotate in the direction of arrow B. A large number of annular bodies 2 are externally fitted and fixed to the rotating body 23 at intervals in the width direction.
4, and a flexible dispensing piece 25 attached to the annular body 24.

The dispensing piece 25 is a large number of brushes made of synthetic resin planted around the outer periphery of the annular body 24 in the shape of a brush.

The annular body 24 can be divided into two in the radial direction, and is integrated by a bolt 26 and connected to the rotating body 2.
3 is in the shape of a pincer. The position in the width direction of the annular body 24 is such that it does not overlap in the width direction with the clamping piece 15 which is fixed to the feed bar 13 of the transport mechanism 14 and is transported.

The radial dimension of the dispensing piece 25 is such that it can come into contact with the right end circumferential surface in FIGS. ing.

Reference numeral 27 denotes an expanding mechanism, which is located above the clamping piece 15 that has been conveyed to the dispensing mechanism 22 position by the conveying mechanism 14. In the expanding mechanism 27, reference numeral 28 denotes a pivot shaft, which is pivotally supported in the width direction on the punching machine body 2 at a position above the chain 12 in the form of a bridge. Reference numeral 29 denotes rocking pieces, and the bolts 3 are attached to the pivot shaft 28 in the same number as the holding pieces 15 at positions corresponding to the positions in the width direction of the holding pieces 15.
It is fixed at 0. At the tip of the swinging piece 29,
A push piece 31 located above the pin 21 protruding from the lower member 17 is fixed by a screw shaft 32 and a nut 33.

A connecting piece 34 is externally fitted and fixed to one end of the pivot shaft 28, a connecting rod 35 is pivotally attached to the connecting piece 34, and the connecting rod 35 is pivotally attached to a rotating shaft 36 that can be rotated and stopped. A crank mechanism is formed. As a result, the rotation of the rotating shaft 36 causes the swinging piece 2 to
The push piece 31 at the tip of 9 moves up and down. This push piece 31
Due to the downward movement of the pin 21 , the pin 21 protruding from the lower member 17 is pushed down by the pressing piece 31 , and the remaining part 19 of the material 5 to be punched is pushed down between the opposing parts of the clamping piece 15 .
Expand until it can be taken in and out. This expanding mechanism 27 is also provided below the clamping piece 15 which is conveyed by the conveyance mechanism 14 to the supply position of the material to be punched 5 below the right sprocket 11.

Next, the operation of the automatic flat plate punching machine 1 will be explained based on FIG. 2.

First, the material to be punched 5 supplied from the supply device 3
is sent by the conveyor 4 to a supply position below the right sprocket 11. At this time, the opposing parts of the clamping pieces 15 that have been in a waiting state until the material to be punched 5 is supplied are expanded by the expanding mechanism 27, and the material to be punched 5 is inserted between the opposing parts. Take the state.
Thereafter, the pushing piece 31 of the expanding mechanism 27 separates from the pin 21 of the holding piece 15, whereby the material to be punched 5 is held between the opposing parts. Then, the gripping piece 15 is conveyed to the cutting device 6 position by the rotation of the feed bar 13 caused by the rotation of the sprocket 11 of the conveyance mechanism 14. When the material 5 to be punched is cut into the desired shape, the clamping piece 15
is transported by the transport mechanism 14 to the position of the removal device 9. Here, the desired shape portion 37 surrounded by the notch in the material to be punched 5 is punched out, and the clamping piece 15
Only the remaining portion 19 is held in place.
Thereafter, the holding piece 15 is transported by the transport mechanism 14 to the dispensing mechanism 22 position.
This state is the state shown in FIGS. 4 and 5 described above.
Here, the rotating body 23 is constantly rotationally driven in the direction of arrow B in the figure, the dispensing piece 25 comes into contact with the right end peripheral surface in the figure of the remaining part 19, and the gap between the opposing parts where the clamping piece 15 is expanded is as shown in the figure. Since it is on the left, the remaining portion 19 is urged by the dispensing piece 25 in the dispensing direction from between the opposing portions of the clamping piece 15 . However, since the remaining portion 19 is held between the holding pieces 15, it will not be removed. At this time, the dispensing piece 25
Since it is flexible, it becomes bent by contacting with the remaining portion 19. Thereafter, when the opposing portions of the clamping piece 15 are expanded by the expanding mechanism 27, the remaining portion 19 is ejected from the clamping piece 15, as shown in FIG. Then, the holding piece 15 is again conveyed by the conveyance mechanism to the punching material supply position, and the punching operation is performed continuously by repeating the above operation. Note that 38 is a conveyor for discharging the remaining portion 19.

According to the automatic flat plate punching machine 1, when the remaining portion 19 is held between the holding pieces 15, the rotating body 23
The remaining portion 19 is removed by rotating the dispensing piece 25.
In order to urge in the direction of discharging from the clamping piece 15,
Even if the dispensing piece 25 is brought into contact with the remaining portion 19, there is no risk of breakage or failure because the dispensing piece 25 is flexible. Furthermore, the clamping piece 15 is connected to the feed bar 13.
Since the feed bar 13 is attached to the lower surface, the payout piece 25 collides with the feed bar 13, but even in that case, there is no risk of damage. Moreover, the clamping piece 15 by the expansion mechanism 27
Since the remaining portion 19 can be biased in the dispensing direction regardless of the timing of expansion between the opposing portions of
It is not necessary to synchronize the timing of the biasing in the payout direction of 9. As a result, it is not necessary to periodically adjust the timing by using a crank mechanism as the dispensing mechanism as in the past, and it is possible to improve work efficiency. Moreover, the biasing of the remaining portion 19 by the dispensing piece 25 is performed by the rotating body 23.
It is only necessary to drive the rotor to rotate, and it is also possible to keep it rotating at all times.The structure is simple, there are fewer failures, and manufacturing costs can be reduced.

<Effect of the invention> According to the automatic flat plate punching machine according to the invention, since the dispensing piece is flexible, the dispensing piece is brought into contact with the remaining portion sandwiched between the clamping pieces and urged in the dispensing direction. There is no risk of failure or damage. Further, the remaining portion can be paid out regardless of the timing of the expansion of the opposing portions of the clamping pieces by the expansion mechanism, and work for adjusting the timing is not required, thereby improving work efficiency. Further, the biasing of the remaining portion in the dispensing direction by the dispensing piece only requires rotationally driving the rotating body, so the structure is simplified, failures are reduced, and manufacturing costs are reduced.

[Brief explanation of the drawing]

The drawings relate to an embodiment of the present invention. Fig. 1 is an explanatory diagram of the overall configuration of an automatic flat plate punching machine, Fig. 2 is an explanatory diagram of the same operation, and Figs. 3 and 4 are plan views of main parts in different states. Figures 5 and 6 are sectional views of main parts in different states. 1... Automatic flat plate punching machine, 5... Material to be punched, 1
0... Punching mechanism, 14... Conveying mechanism, 15... Clamping piece, 19... Remaining part, 22... Paying out mechanism,
23...Rotating body, 25...Dispensing piece, 27...
Expansion mechanism, 37...Required shape section.

Claims (1)

[Scope of utility model registration request] A punching mechanism 10 that punches out a desired shape part 37 from the punched material 5; A clamping piece 15 having an opposing portion that clamps the remaining part 19 other than the desired shape part 37 of the supplied punched material 5; An expanding mechanism 27 that can expand between the opposing parts of the clamping piece 15 until the remaining part 19 can be taken in and out; Dispensing mechanism 22 dispensing from between the opposing parts of
In an automatic flat plate punching machine 1 equipped with a conveyance mechanism 14 that sequentially conveys a clamping piece 15 to a material to be punched 5 supply position, a punching mechanism 10 position, and a dispensing mechanism 22 position, the dispensing mechanism 22 is , has a rotary body 23 that is rotationally driven and a flexible dispensing piece 25 attached to the rotary body 23, and the dispensing piece 25 moves the remaining portion 19 to the opposite side of the clamping piece 15 by the rotation of the rotary body 23. An automatic flat plate punching machine characterized in that the machine is brought into contact with the remaining part 19 so as to be biased in the direction of cutting out from between the parts.