JP3324206B2 - Press machine for punching - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching press device used for punching a product portion such as a prepaid card or a credit card from a sheet.

[0002]

2. Description of the Related Art Magnetic recording cards, such as so-called prepaid cards and credit cards, are manufactured by punching out product parts from sheets. The sheet is formed with product parts arranged vertically and horizontally. That is, the sheet has a base material made of plastic coated with a magnetic material for recording information, and both sides are printed with decorations and indications. Since this printing is already done before punching,
The product part must be precisely punched out of the sheet at a predetermined position. FIG. 10 shows an example of the sheet 1. In the figure, 2 is a product part to be punched, 3
Is a registration mark which is a position mark. These registration marks 3 are formed simultaneously with the printing, and indicate the position of each product portion 2.

The punching device used for punching the sheet 1 includes a sheet conveying mechanism, a sheet positioning mechanism, a press mechanism, and the like. Then, after positioning the sheet by the positioning mechanism, the sheet is sent to the press mechanism,
Here, the sheet is intermittently conveyed, and the product portion of the sheet is sequentially extracted line by line. Further, a plurality of sheets are conveyed one after another, and punching is performed.

By the way, since the product portion is formed on the sheet at a constant pitch, when punching, the press mechanism may be operated at a cycle of the predetermined time while feeding the sheet at a constant pitch every predetermined time. . However, between the following two sheets, since there is an ear of a predetermined width without a product portion at the edge of the sheet, the product portion of the last row of the previous sheet and the product portion of the front row of the subsequent sheet are different from each other. Cannot be reduced to the fixed pitch. In order to keep the conveyance of the sheet and the operation of the press mechanism constant, the interval between the product part in the last row of the preceding sheet and the product part in the front row of the following sheet is set to two pitches, Then, the press mechanism may be idled. However, in the case of the blank hitting, if the interval between the edges of the sheet is smaller than the width of the product portion, the punch hits the ear of the sheet and a part of the ear is missing. This chipped portion remains in the mold as foreign matter, and causes malfunction.

In view of the above, conventionally, the height of the punch with respect to the upper mold has been made adjustable so that the punch does not actually punch out the sheet between the sheets even if the press mechanism keeps performing a certain operation. Is being done. Here, an example of this type of conventional press mechanism will be described with reference to FIG. In the figure, reference numeral 11 denotes a lower holder, and the lower holder 11 has a lower mold 12 attached to an upper surface thereof. The lower mold 12 has a die 13. Also,
Reference numeral 14 denotes an upper ram. The upper ram 14 has an upper mold 15 attached to a lower surface thereof.
2, 15 open and close each other. And upper mold 1
The punch 16 is incorporated in 5 so that it can slide up and down.
The upper part of the punch 16 is held by a punch holder 17. A slide plate 18 is provided between the upper ram 14 and the upper mold 15 so as to be horizontally slidable. The slide plate 18 is driven by an air cylinder 19. In addition, a concave portion 20 that fits on the upper portion of the punch holder 17 is formed below the distal end of the slide plate 18. Further, the punch holder 17 is constantly pulled upward by a spring 21 incorporated in the upper ram 14 via a connecting rod 22.

[0006] When punching a sheet, FIG.
As shown in (a), the slide plate 18 is advanced, and the lower surface of the slide plate 18 that has come off the concave portion 20 is pressed against the upper surface of the punch holder 17. In this state, the punch 16 is held by the slide plate 18 and the punch 16 is held at the lower position with respect to the upper mold 15. And when the upper mold 15 descends with the upper ram 14,
The punch 16 punches out the sheet on the die 13. On the other hand, at the position between the sheets, as shown in FIG. 11B, the slide plate 18 is retracted, and the concave portion 20 is fitted on the upper part of the punch holder 17. In this state, the punch 16 is held at the raised position with respect to the upper mold 15 and retracted. Therefore, even if the upper ram 14 moves down, the punch 16 does not punch out a sheet.

[0007]

However, in the conventional press device (press mechanism), only the punch 16 can be moved up and down by the upper die 15, so that the rigidity of the die 15 decreases.
Also, there was a problem that the alignment of the punch 16 was likely to be out of alignment. At the same time, there was a problem that the punch 16 was worn and the life of the mold 15 was shortened.

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem. In a punching press apparatus capable of selecting between punching and non-machining blanking without stopping the operation, the rigidity, accuracy, The purpose is to improve the life.

[0009]

According to the present invention, in order to achieve the above object, punching is performed by opening and closing an upper die having a punch and a lower die having a die up and down by driving an upper ram. In addition, in a punching press device that enables blank punching in which punching is not performed even when the upper ram is closed, an upper ram main body that is driven up and down, and supported to be able to move up and down below the upper ram main body. A movable plate on which the upper mold is attached to a lower surface, a slide plate horizontally slidably provided between the movable plate and the upper ram body, and a movable plate lifting means for urging the movable plate upward. , and a slide plate driving means for driving the slide plate, on the lower surface of the upper surface and the slide plate of the movable plate, abut one another in association with the displacement of the slide plate, the variations of the crests departing
Each having a large number in the direction, and the slide plate has
The upper ram body has convex ridges on both sides thereof.
Pressed by the rail fixed to the upper ram book
The upper ram body is supported by
The storage plate that sandwiches the ride plate in the sliding direction
The par is fixed, and the crest of the movable plate and the crest of the slide plate abut against each other at the time of punching, and come off from each other at the time of idling.

[0010]

In the press apparatus of the present invention, when performing the punching process, the slide plate is horizontally moved by the slide plate driving means, and the ridge on the lower surface of the slide plate abuts against the ridge on the upper surface of the movable plate. In this state, the movable plate and the upper die attached to the lower surface thereof are held at the lower position with respect to the upper ram main body against the urging of the movable plate lifting means. Therefore, when the upper ram main body is lowered or closed by a predetermined stroke, the work is sandwiched between the upper mold having the punch and the lower mold having the die, and the work is punched. On the other hand, without stopping the operation of the press device,
When performing blank punching without punching, the slide plate is moved horizontally by the slide plate driving means, and the crest of this slide plate and the crest of the movable plate are removed. In this state, the movable plate and the upper mold are urged by the movable plate lifting means.
The upper ram body is held at a raised position. Therefore,
Even if the upper ram main body is lowered by the predetermined stroke, the upper die does not sufficiently approach the lower die, and the workpiece is not punched.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The punching device used for punching the sheet 1 sequentially punches the product portions 2 of the sheet 1 line by line while sequentially transporting the plurality of sheets 1 in a certain direction, that is, forward.
31, a first sheet conveying mechanism 32, a positioning mechanism 33, a second sheet conveying mechanism 34, a third sheet conveying mechanism 35, a press mechanism 36 as a punching press device, a product separating mechanism 37, and a scrap accumulating mechanism 38. An operation panel 39 is provided. The sheet supply mechanism 31 is configured to carry in the sheets 1 in a stacked state and send out the sheets 1 to the first sheet transport mechanism 32 one by one from above. The first sheet transport mechanism 32 moves the sheet 1 supplied from the sheet supply mechanism 31 to a positioning mechanism 33.
To be transported to The positioning mechanism 33 positions the conveyed sheet 1 based on the outer shape. The second sheet conveying mechanism 34 conveys the positioned sheet 1 to the press mechanism 36, and maintains a predetermined posture of the sheet 1 at that time. The third sheet transport mechanism 35
The sheet 1 is received from the second sheet transport mechanism 34, and the press mechanism 36 and the product separating mechanism 37 transport the sheet 1 intermittently. The press mechanism 36 cuts and punches the product portion 2 from the sheet 1 line by line.
The product separating mechanism 37 separates the product portion 2 from the sheet 1 after punching by the press mechanism 36. The scrap accumulating mechanism 38 receives the remaining material of the sheet 1 from which the product has fallen from the third sheet conveying mechanism 35 and accumulates it. The operation panel 39 is used for operations such as control of the punching device and setting of conditions.

Next, the configuration of the sheet feeding mechanism 31 will be described. There is a box-shaped frame 41, in which an elevator 42 driven up and down is provided. The elevator 42 has the sheets 1 placed thereon in a stacked state. A vacuum suction pad 43 is provided on the upper side of the frame 41 on the front side (right side in the figure). The vacuum suction pad 43 is driven back and forth by an air cylinder 44. Further, a feed roller 45 and a press roller 46 located above the feed roller 45 are provided adjacent to the front of the vacuum suction pad 43. Feed roller 45
Are rotationally driven by a motor. The pressing roller 46 is driven up and down by an air cylinder 48, and approaches and separates from the feed roller 45.

The first sheet conveying mechanism 32 includes a belt conveyor provided on a table 51 fixed on a table 50.
It consists of 52. The carry-in end, that is, the rear end of the belt conveyor 52 is located near the feed roller 45. On the table 51, the positioning mechanism 33 is provided around a belt conveyor 52. Next, the configuration of the positioning mechanism 33 will be described. A first gauge pin near the front of the front end of the belt conveyor 52
53 are provided. The first gauge pin 53 is driven up and down by an air cylinder 54, and is driven by a belt conveyor.
It is higher or lower than the upper surface of 52. A pair of front and rear second gauge pins 55 are provided on the right side of the belt conveyor 52 at the height of the upper surface of the belt conveyor 52. These second gauge pins 55 are simultaneously driven left and right by an air cylinder 56.
On the other hand, on the left side of the belt conveyor 52, a leaf spring 57 is provided at the height of the upper surface of the belt conveyor 52. These leaf springs 57 are driven left and right by an air cylinder 58.

Next, the structure of the second sheet conveying mechanism 34 will be described. Ball screws 61 and 62 are placed on the table 51 from the left and right sides of the belt conveyor 52 forward.
Are respectively supported. These ball screws 61, 62
Are driven independently by servo motors 63 and 64 via belts 65 and 66, respectively. Note that rotary encoders 67 and 68 are connected to the rear ends of the ball screws 61 and 62, respectively. And each ball screw 61,
At 62, carriages 69 and 70 are respectively supported. These carriages 69, 70 move back and forth with the rotation of the ball screws 61, 62. And each carriage
Pneumatically driven chucks 71 and 72 are provided in 69 and 70, respectively. These chucks 71 and 72 are opened and closed to hold the left and right sides of the sheet 1 detachably. In the second sheet transport mechanism 34, the distance between the first gauge pin 53 and the entrance of the third sheet transport mechanism 35 is slightly longer than the entire length of one sheet 1, and the buffer space 73 Has become. Further, a pair of upper and lower sensor bases 74 and 75 are provided on the table 51 in the buffer space 73. The sensor bases 74 and 75 are provided with a pair of front and rear rollers 76 and 77 for sandwiching the sheet 1 being conveyed from above and below, respectively.
8, 79 are provided respectively. These color mark sensors 78 and 79 detect the position of the register mark 3 on the sheet 1.

The third sheet transport mechanism 35 has three horizontal feed rollers 86, 87, 88 arranged in parallel in the front and rear direction. These feed rollers 86, 87, and 88 are commonly rotated and driven by a single servo motor 89 via a power transmission mechanism 90 including a pulley and a belt. That is, the three feed rollers 86, 87, 88 rotate simultaneously at the same speed. A plurality of pressing rollers 91, 92, 93 are provided above the feed rollers 86, 87, 88, respectively. These three groups of pressing rollers 91, 92,
93 is driven up and down by air cylinders 94, 95 and 96, respectively, and approaches and separates from the feed rollers 86, 87 and 88, respectively.

The press mechanism 36 includes a lower holder 102 fixed on a base 101, and an upper ram 103 located above the lower holder 102 and driven up and down. On the upper surface of the lower holder 102, a lower mold 104 having a die is provided.
The upper die 103 having a punch is mounted on the lower surface of the upper ram 103. Lower mold 104
Is located on the rear side of the third sheet conveying mechanism 35 and between the intermediate feed rollers 86 and 87.

As shown in FIGS. 1 and 2, the upper ram
In 103, a movable plate 111 is supported by a plurality of rods 112 horizontally and vertically movable below the upper ram main body 110.
The rod 112 is for preventing the movable plate 111 from coming off and slipping, has a flange 113 at an upper end, penetrates the upper ram body 110 slidably up and down, and has a lower end fixed to the movable plate 111. . A slide plate 114 is provided between the upper ram main body 110 and the movable plate 111 so as to be horizontally slidable. The slide plate 114 has ridges 115 on both sides, and the ridges 115 are pressed by rails 116 fixed to the upper ram body 110 and are supported by the upper ram body 110.
Note that, on the lower surface of the upper ram main body 110, a stopper block 11 which is located so as to sandwich the slide plate 114 in the sliding direction.
7, 118 are fixed. These stopper blocks 11
A stopper bolt 119 with a shock absorber, which regulates the sliding range of the slide plate 114, is threadably engaged with 7, 118 so as to advance and retreat. An air cylinder 121 as a movable plate lifting means is provided on the upper ram main body 110, and a piston rod 122 that moves up and down the air cylinder 121 passes through the upper ram main body 110 and the slide plate 114 to move the movable plate. Fixed to 111. As a result, the movable plate 111 is constantly urged upward. On the other hand, an air cylinder 123 as a slide plate driving means is provided at the lower side of the upper ram main body 110.
The horizontally moving piston rod 124 of the 23 slide plate 114
It is fixed to. Thereby, the slide plate 114 is driven. Further, on the upper surface of the movable plate 111 and the lower surface of the slide plate 114, a number of peaks 125 and 126 are formed, respectively, which are arranged in the direction of displacement. These mountains 12
5 and 126, when the slide plate 114 is displaced, abut against each other as shown in FIG. 3A and come off from each other as shown in FIG. 3B. The movable plate 111
The upper die 105 is attached to the lower surface of the upper ram 105. This attachment is performed by bolts 127 that pass through the slide plate 114 and the movable plate 111 from the upper ram main body 110. The bolt 127 and the piston rod 122 pass through long holes 128 and 129 formed in the slide plate 114.

The product separating mechanism 37 has a horizontal frame 131 on which the sheet 1 is placed, which is located between the middle and front feed rollers 87 and 88 of the third sheet conveying mechanism 35 and on which the sheet 1 is placed. Seat 1 located inside
Has a pusher 132 that pushes the product portion 2 from above to drop from the sheet 1. This pusher 132, which is driven up and down, is used to move product parts 2 in the left and right rows of the seat 1.
There is only the number of. Further, a belt conveyor 134 driven by a servo motor 133 is provided rightward from a position below the frame 131. The belt conveyor 134 receives the falling product and transports it to a product storage box (not shown).

The scrap accumulating mechanism 38 has a scrap accommodating case 141. In the scrap accommodating case 141, the remaining material of the sheet 1 after the product portion 2 is separated is accumulated and accommodated. And the scrap accumulation mechanism 38
There is a pull-in mechanism 142 that pulls the residual material discharged from the feed roller 88 of the third sheet transport mechanism 35 into the scrap storage case 141.

Next, the operation of the above configuration will be described. A large number of sheets 1 before punching are placed on an elevator 42 of the sheet supply mechanism 31 in a stacked state. Then, the front portion of the uppermost one sheet 1 on the elevator 42 is sucked by the vacuum suction pad 43 and lifted.
Next, the vacuum suction pad 43 advances, and the sucked sheet 1 is conveyed forward, and the front portion thereof is fed by a feed roller 45.
On the top. Then, the pressing roller 46 descends to sandwich the sheet 1 with the feed roller 45, and the suction of the vacuum suction pad 43 is released. Thereafter, the vacuum suction pad 43 returns to the original position and sucks the next sheet 1 on the elevator 42. On the other hand, the sheet 1 sandwiched between the rollers 45 and 46 is conveyed forward by the rotation of the rollers 45 and 46, and is sent out onto the belt conveyor 52. After that, the holding roller 46 rises again, and the sheet 1
Move away from 5,46.

The sheet 1 sent to the belt conveyor 52 is conveyed forward by the belt conveyor 52 and positioned there. That is, the front side of the sheet 1 abuts on the first gauge pin 53 which has been raised in advance, and the sheet 1
Stops. At the same time, the second gauge pin 55 advances leftward to a predetermined position, and the leaf spring 57 advances rightward. Pressed by the leaf spring 57, the right side of the sheet 1 abuts on a pair of front and rear second gauge pins 55. Thereby, the sheet 1 is positioned based on the outer shape. After this positioning, one of the right and left chucks 71 and 72 holds the sheet 1 with one of the left and right sides sandwiched therebetween. Thereafter, the first gauge pin 53 is lowered and the second gauge pin 55 and the leaf spring 57 are retracted so as not to prevent the sheet 1 from being conveyed forward.

The positioned sheet 1 is shown in FIGS.
As shown in (e) to (j), while the previous sheet 1 remains in the buffer space 73, the sheet 1 remains at the position at the time of positioning. Then, when the buffer space 73 becomes empty, the chucks 71 and 72 which are moved forward
Seat 1 held at 72 moves forward into buffer space 73
Transported together. During conveyance by the chucks 71 and 72, the sheet 1 is held by the chucks 71 and 72, so that the sheet 1 keeps a predetermined posture given by the positioning. After the sheet 1 is conveyed from the belt conveyor 52 to the buffer space 73, the next sheet 1 is supplied from the sheet supply device 31 to the belt conveyor 52 and positioned. At this time, the other chucks 72 and 71 are located beside the belt conveyor 52 and located on the side of the next sheet 1.

As shown in FIGS. 8 and 9, in the buffer space 73, the sheet 1 is intermittently conveyed by the chucks 71 and 72 by the third sheet conveying mechanism 35 in the press mechanism 36. As the product part 2 is transported, the product part 2 is intermittently conveyed forward by the pitch in the front-rear direction. However, there is no need to stop. Then, during conveyance in the buffer space 73 and during deceleration, the registration mark 3 of the sheet 1 is detected by one of the upper and lower color mark sensors 78 and 79, and the position of the registration mark 3 is determined.

8 and 9, feed rollers 86, 87,
88 is indicated by a broken line because the feed rollers 86, 8
It indicates that the pressing rollers 91, 92, and 93 are far from 7, 88, and the solid line indicates the feed roller.
This indicates that the sheet 1 is sandwiched between 86, 87, 88 and the pressing rollers 91, 92, 93. As shown in FIG. 9 (i), after the previous sheet 1 comes off from the feed roller 86, the pressing roller 91 is separated from the feed roller 86, and in this state, as shown in FIG. The front of the sheet 1 conveyed forward by 72 is placed on the feed roller 86. Immediately thereafter, the pressing roller 91 descends, and sandwiches the feed roller 86 and the sheet 1. Then, chuck 71,
72 is retracted after opening, and returns to the standby position beside the belt conveyor 52.

Thereafter, the sheet 1 is intermittently transported forward by the rotation of the rollers 86 and 91 while maintaining the predetermined posture. As shown in FIG. 9 (i), the sheet 1 comes off from the feed roller 86, and at the same time, the holding roller 92, which was at the ascending position, goes down, and the feed roller 87
And the sheet 1. From this point, the sheet 1 is conveyed by the rollers 87 and 92. Each time the sheet 1 conveyed intermittently stops, the dies 104 and 105 of the press mechanism 36 are stopped.
Is closed and one row of product parts 2 of the sheet 1 is punched out.
Thereafter, the molds 104 and 105 are opened, and the sheet 1 is fed one pitch again. This is repeated, and the product portions 2 of the sheet 1 are sequentially punched out one by one. As shown in FIG. 8C, when the sheet 1 comes off the feed roller 87,
The holding roller 92 rises again. The press mechanism 36
In the conveyance of the sheet 1 in the above, the positioning of the sheet 1 in the conveyance direction is performed for each row of the product portion 2. That is, based on the detection of the position of the register mark 3 in the buffer space 73, an appropriate transport amount in the third sheet transport mechanism 35 is obtained, and the sheet 1 is fed by this transport amount. Thereby, the product part 2 of the sheet 1 is accurately punched.

Immediately after punching by the press mechanism 36, the product part 2 still remains on the sheet 1. The sheet 1 is further conveyed to the product separation mechanism 37, in which each row of product parts 2 is pushed from above by each pusher 132, separated from the sheet 1 and transferred to the belt conveyor 134. Fall. The dropped product is conveyed by the belt conveyor 134 and stored in the product storage box. The feeding of the sheet 1 and the lowering of the pusher 132 are repeated, and the product portion 2 is sequentially separated from the sheet 1 line by line. As shown in FIG. 9C, when the sheet 1 comes off from the feed roller 87, the holding roller 93, which has been in the ascending position, goes down, and the feed roller 88
And the sheet 1. From this point, the sheet 1 is conveyed by the rollers 88 and 93. Then, the sheet 1 is reliably conveyed by these final-stage rollers 88 and 93 until the sheet 1 passes through the product separation mechanism 37. As shown in FIG. 9G, when the sheet 1 comes off from the feed roller 88, the pressing roller 93 moves up again.

The remaining material of the sheet 1 having passed through the product separating mechanism 37 is drawn into the scrap accommodating case 121 by the drawing mechanism 122, and is stacked there.

[0028] Thus, the product portion 2 from the plurality of sheets 1 is obtained.
Are punched out sequentially. When the plurality of sheets 1 are continuously conveyed, in particular, in the second sheet conveying mechanism 34, the pair of right and left chucks 71 and 72 alternately convey the successive sheets 1.

By the way, when the sheet is conveyed by the third sheet conveying mechanism 35, the product part 2 in the last row of the previous sheet 1 and the product part 2 in the front row of the sheet 1 following the sheet 1 are exactly the product parts in the sheet 1. 2 which is twice the pitch in the front-rear direction. Accordingly, it is possible to keep the press mechanism 36 operated at a constant time period. At this time, as shown in FIGS. 8 and 9 (b) to (j), when the product portion 2 of the sheet 1 is at the punching position of the press mechanism 36, the product portion 2 is actually punched. 8 (a)
As shown in (1), when the position between successive sheets 1 reaches the punching position, the blanking is performed. When punching is performed, as shown in FIG. 3A, the slide plate 114 advances a by the drive of the air cylinder 123, and the ridges 125 and 126 of the slide plate 114 and the movable plate 111 abut each other. In this state, the movable plate 111 and the upper mold 105 are held at the lower position with respect to the upper ram main body 110 against the bias of the air cylinder 121. Then, as the upper ram main body 110 descends by a fixed stroke, that is, the closing operation, the sheet 1 is sandwiched between the lower mold 104 and the upper mold 105, and the product portion 2 is punched. On the other hand, at the time of idling, as shown in FIG. 3B, the slide plate 114 retreats by a driving of the air cylinder 123, and the peak portions 125 and 126 of the slide plate 114 and the movable plate 111 are disengaged from each other. It is in a state of being meshed side by side. In this state, the movable plate 111 and the upper mold 105
By the bias of the air cylinder 121, the upper ram main body 110 is held at the raised position. Note that the height difference b from the lowered position
Is 1 mm. Therefore, even if the upper ram body 110 descends by the predetermined stroke, the lower mold 104 does not sufficiently approach the upper mold 105, and the ears of the sheet 1 are not punched.

In order to perform such an empty punching operation, the entire upper die 105 including the punch is moved up and down with respect to the upper ram main body 110, so that only the punch of the upper die is moved up and down as in the prior art. The rigidity of the upper mold 105 can be increased as compared with the case in which it is performed. In addition, the alignment of the punch does not get out of order, and the accuracy of punching is improved. Furthermore, the members of the upper mold 105 do not wear due to friction, and the life of the upper mold 105 is extended.

The present invention is not limited to the above-described embodiment, and various modifications can be made. For example,
The arrangement of the product parts 2 in the sheet 1 is not limited to the arrangement shown in FIG. The number and pitch of the rows may be set on the operation panel 39. Further, in the above-described embodiment, the product part 2 in the front row of the sheet 1 is exactly separated by two times the pitch of the product part 2 in the sheet 1 in the front-rear direction. However, any integer number such as three times is possible. . However, in order to shorten the cycle of the punching operation, it is better to make the interval between the sheets 1 as narrow as possible. In addition, the air cylinders 121 and 123 are
It is also possible to use data.

[0032]

According to the present invention, the upper die having the punch and the lower die having the die are vertically opened and closed by driving the upper ram to perform the punching process, and the upper ram is closed. In a punching press device that enables blank punching in which no punching is performed, an upper die has a movable plate attached to the lower surface supported below the upper ram body so as to be able to ascend and descend, and is moved upward by movable plate lifting means. Energized,
A slide plate driven by a slide plate driving means is horizontally slidably provided between the movable plate and the upper ram main body, and the upper surface of the movable plate and the lower surface of the slide plate are mutually moved with the displacement of the slide plate. The displacement of the peak that comes off and comes off
And the slide plate is further provided on both sides thereof.
Portion has a ridge, and these ridges are fixed to the upper ram body.
Supported by the upper ram body
And the slide plate is provided on the lower surface of the upper ram main body.
Stopper in the sliding direction
Constant, and abuts the crests of both, by keeping the movable plate and the lower die relative to upper ram body in the lowered position, can work punching between the lower die and upper die, whereas, ineffective Occasionally, by removing the peaks from each other and holding the movable plate and the lower mold at the raised position with respect to the upper ram main body, the work can be prevented from being punched without stopping the operation of the press device. And, since the entire upper mold is moved up and down with respect to the upper ram main body, the rigidity of the mold can be increased as compared with the case where only the punch of the upper mold is moved up and down as in the past, and The alignment of the punch does not go out of order, the accuracy is improved,
The members of the mold do not wear, and the life of the mold is extended.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an upper ram showing one embodiment of a press device of the present invention.

FIG. 2 is a cross-sectional view of the upper ram.

FIG. 3 is an enlarged cross-sectional view of a part of the slide plate and the movable plate.

FIG. 4 is a plan view of the entire punching device using the present press device.

FIG. 5 is a side view of the whole punching device.

FIG. 6 is an enlarged side view of the same sensor part.

FIG. 7 is an enlarged side view of a third sheet conveying mechanism according to the first embodiment.

FIG. 8 is a plan view illustrating an operation of a second sheet transport mechanism and a third sheet transport mechanism according to the first embodiment.

FIG. 9 is a plan view illustrating the operation of the second and third sheet conveying mechanisms.

FIG. 10 is a plan view of a sheet.

FIG. 11 is a sectional view showing an example of a conventional press device.

[Explanation of symbols]

36 Press mechanism (press machine) 103 Upper ram 104 Lower die 105 Upper die 110 Upper ram body 111 Movable plate 114 Slide plate 115 Convex ridge 116 Rail 117 118 Stopper block 121 Air cylinder (movable plate lifting means) 123 Air cylinder ( Sliding plate driving means) 125 mountain part 126 mountain part

Continuation of the front page (56) References JP-A-6-182733 (JP, A) JP-A-57-7337 (JP, A) JP-A-57-160599 (JP, A) (58) Fields studied (Int .Cl. ⁷ , DB name) B30B 15/06 B26F 1/00 G11B 5/84

Claims (1)

(57) [Claims] 1. An upper die having a punch and a lower die having a die are vertically opened and closed by driving an upper ram to perform a punching process, and no punching is performed even when the upper ram is closed. In a punching press apparatus capable of performing blank punching, an upper ram main body driven up and down, a movable plate supported below the upper ram main body so as to be able to ascend and descend and the upper mold is attached to a lower surface, A slide plate horizontally slidably provided between the plate and the upper ram main body, a movable plate lifting means for urging the movable plate upward, and a slide plate driving means for driving the slide plate, The top of the movable plate and the bottom of the slide plate abut against each other due to the displacement of the slide plate, and the peaks that come off are changed.
Each having a large number in the direction, and the slide plate has
The upper ram body has convex ridges on both sides thereof.
Pressed by the rail fixed to the upper ram book
The upper ram body is supported by
The storage plate that sandwiches the ride plate in the sliding direction
A punching press device , wherein a par is fixed, and the peak of the movable plate and the peak of the slide plate abut against each other during punching and separate from each other during idle punching.