JP4838869B2 - Flat plate punching device - Google Patents

Description

  The present invention relates to a flat plate punching apparatus for punching by pressing a plate-like member such as a corrugated cardboard sheet, cardboard, or film.

  Conventionally, punched materials such as corrugated board sheets supplied in a stacked form to the punched material supply unit are intermittently supplied one by one to the conveying means, and after pressing a predetermined die on the supplied punched material, the product As a flat plate punching device for punching a part, as shown in Patent Document 1, a press part that presses a predetermined die onto a punched material, and a product part and a gripper margin are left from the pressed punched material. Stripping part that removes the product part, knock-off part that separates the product part from the gripper margin, delivery part that accommodates the product part separated by the knock-off part, and material to be punched between the press part, stripping part, and delivery part In general, there is known one having a conveying means for sequentially conveying.

In the above general flat plate punching apparatus, the position of the punched material from the press to the delivery unit is determined when the punched material supply unit transfers the material to the conveying means.
Therefore, it is also important to accurately place the punched material on a predetermined position of the punched material supply unit.
On the other hand, in order to improve productivity, when trying to increase the conveying speed of the conveying device, the speed at which the punching material such as corrugated cardboard sheets supplied in a laminated form is intermittently supplied one by one by the conveying means is markedly increased. It must be made faster, and misalignment is likely to occur during transfer from the punched material supply unit to the conveying means.

If the supply position from the punched material supply unit to the conveying means is deviated, a defective product is generated.
In particular, the material to be punched is pre-designed with letters, designs, etc., and if the design and the position to be punched deviate even a little, it becomes a defective product, and the incidence of the defective product increases. There was a problem that productivity was lowered. For this reason, the current situation is that the processing speed (conveyance speed) of the flat plate punching apparatus cannot be sufficiently increased.

JP 2006-346777 A

The present invention has been proposed in view of the above problems, an object to be punched material even when accelerated transport speed of the transport means, so as to be able to pass all times accurately to the conveying means from the punched material feed portion An object of the present invention is to provide a flat plate punching device that can prevent the generation of defective products as much as possible and improve the productivity.

In the flat plate punching apparatus according to the present invention, the punched material supplied in a predetermined size to the punched material supply unit is supplied to the transport means, and the supplied punched material is transported by the transport means. In the meantime, a predetermined die is pressed on the punched material in the press section, the non-product part is removed from the pressed punched material, leaving the product part and the gripper margin, and the product from the gripper margin in the knock-off part. disconnect the portion in the flat plate stamping device formed so as to accommodate the product portion, separated by the knock-off unit in the delivery unit, is corrected to a predetermined position in the width direction of the punching member perpendicular to the feed direction of the punching member the supply position correction means, provided between the conveying means and the punched material feed section, the supply position correcting means is in contact with the end surface of the punching member those A tool, a roller connected to the contact tool and sliding in the width direction together with the contact tool, a side cam plate that rotates in conjunction with the conveying means, and a cam surface of the side cam plate. An urging spring that urges the punching material to contact the punching material, and before the conveyance of the punched material starts, the distance between the left and right contact tools is slightly larger than the width of the punching material. The left and right abutment tools are slid to stand by, and when the punched material starts to be transported and the punched material is transported between the left and right abutment tools, the cam surface is rotated by the rotation of the side cam plate. The most important thing is that the position in the width direction of the abutting roller changes, the left and right abutting tools slide to the end face side, and the punched material is corrected to a predetermined position. Features.

Further, the flat plate punching device according to the present invention is characterized in that the abutment tool is formed of a plate-like member that abuts and separates from the side edge of the punched material.

According to the flat board stamping apparatus of the present invention, when the tip of the punching member came near the conveying means is held in the transport means, the width direction of the punching member perpendicular to the feed direction of the punch materials A supply position correction means configured to provide a position correction tool that reciprocally slides to a predetermined position to correct the position is provided between the punched material supply unit and the conveyance means.
By this supply position correction means, the punched material is corrected to an accurate position when it is continuously sent from the punched material supply section to the transport means. Therefore, even if the transport speed of the transport means is increased, the press section The exact position is maintained up to the delivery part.

As a result, the punched material that has been pre-designed with characters, designs, etc., can always be accurately transferred from the punched material supply unit to the transport means, and the punched material with the designs of characters, designs, etc. in advance. Even if the material is punched accurately and the conveying speed of the conveying means is increased, the occurrence of defective products can be prevented as much as possible, so that it is possible to provide a flat plate punching device capable of improving productivity.

FIG. 2 is a front view of a flat plate punching device according to the present invention. FIG. 2 is a front view showing a schematic configuration of a flat plate punching apparatus according to the present invention. These are the top views of the supply position correction | amendment means part of the flat plate punching apparatus concerning this invention. These are the side views of the supply position correction | amendment means part of the flat plate punching apparatus concerning this invention. These are the front views of the supply position correction | amendment means part of the flat plate punching apparatus concerning this invention. These are the front views to which the supply position correction | amendment means part of the flat plate punching apparatus concerning this invention was expanded.

A preferred embodiment of a flat plate punching device according to the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, a flat plate punching apparatus 1 according to an embodiment of the present invention is configured to stack a punched material 2 on which a design such as letters and designs is applied on the surface of a printed cardboard sheet or the like. A feeder unit (a punching material supply unit) 3 that is set in a state of being pressed, a press unit 4 that presses a predetermined die onto the punching material 2, and a product portion and a gripper margin from the pressed punching material 2 A stripping part 5 for removing the non-product part, a knock-off part 8 for separating the product part from the gripper margin, a delivery part 9 for accommodating the product part separated by the knock-off part 8, and a pressing part 4 for the punched material 2 , A stripping unit 5, and a transport unit 10 that sequentially transports the delivery unit 9 in this order.

The transport means 10 rotates an endless roller chain 12 provided with holding portions 11 for holding a gripper margin of the punched material 2 at predetermined intervals, and is intermittently driven by a punching mechanism of the press portion 4. It is constructed so as to span the wheel 13.
The conveying means 10 is such that the punched material 2 laminated on the feeder section 3 is pulled out one by one to the set plate 15 by the conveyor 14 so that the punched material 2 is sent out, and the punched material whose position is corrected by a supply position correcting means 18 described later. 2, the gripper margin is held by the holding unit 11, and the endless roller chain 12 is intermittently rotated so as to sequentially pass through the press unit 4, the stripping unit 5, and the delivery unit 9 while holding the punched material 2. I try to drive it.

  The press unit 4, the stripping unit 5, and the delivery unit 9 are sequentially arranged at equal intervals, and are held by the holding unit 11 when the roller chain 12 of the conveying unit 10 is driven to rotate intermittently. Further, the holding portions 11 are provided on the roller chain 12 at equal intervals so that the plurality of punched materials 2 are simultaneously stopped at the fixed positions of the press portion 4, the stripping portion 5 and the delivery portion 9.

A pressing unit 4 is provided on the discharge side of the feeder unit 3 to press a predetermined die against the punched material 2. The pressing unit 4 is fixed above the punched material 2 so as to sandwich the punched material 2 therebetween. Thus, the fixed plate 16 on which the mold is mounted and the presser plate 17 which is positioned below the punched material 2 and moves up and down with respect to the fixed plate 16 are configured.
In this press part 4, the die is pressed so as to separate the product part, the gripper margin and the non-product part into the punched material 2.

A stripping section 5 is provided on the downstream side of the press section 4. In the stripping section 5, only the non-product portion is removed from the pressed punched material 2 leaving the product portion and the gripper margin.
And between the feeder part 3 and a conveyance means, the position correction | amendment means 18 which correct | amends the position of the to-be-punched material 2 sent to the conveyance means 10 from the feeder part 3 is provided.
As shown in FIGS. 3 to 6, the position correction means 18 is provided with guide beams 20 whose both ends are supported by support plates 19 in the width direction perpendicular to the traveling direction of the punched material 2 of the flat plate punching device 1, Position correction tools 21 (described later) are provided on both ends of the guide beam 20 so as to be slidable in the left-right direction in FIG.

The position corrector 21 is fitted to a screw shaft 24 driven by a sheet width setting motor 23 via a gear transmission mechanism 22 to slide the paper width setting slider 25 to the left and right to thereby slide the paper width setting slide. A slider 27 in which a contact tool (plate-like member) 26 made of a metal plate material is erected on the upper surface of the moving element 25 is brought into contact with and separated from the side edge portion of the punched material 2 by a cam mechanism 28. It is designed to slide.
The cam mechanism 28 pivotally supports a rotating shaft 29 between the support plates 19, 19, and a side cam plate 30 that can slide on the rotating shaft 29 by a spline or a key groove and cannot rotate relatively. The roller 31 suspended from the slider 27 provided with the contact tool 26 is brought into contact with the cam surface 30a of the side cam plate 30 by the contact biasing spring 32 (see FIG. 3).

A sprocket 33 is attached to the central portion of the rotating shaft 29, and the sprocket 33 is connected to a driving portion (both not shown) of the conveying means 10 by a chain so that the conveying means 10 is intermittently driven. It is connected so as to be interlocked, that is, interlocked with intermittent feed driving from the feeder unit 3 to the roller chain 12 of the conveying means 10.
Reference numeral 34 in the figure denotes a back pusher that is fed from the feeder section 2 to the set plate 15 side by the feed conveyor 14 and pushes the punched material 2 away from the feed conveyor 14 to the set plate 15 side.

A procedure for using the flat plate punching device 1 according to the present invention configured as described above will be described below.
First, the material to be punched 2 having a design such as a character or a pattern is laminated on the surface of a printed cardboard sheet or the like and placed on the feeder unit 3.
Next, the flat plate punching device 1 is activated, and the punched material 2 at the lowermost end set in the feeder portion 3 in a laminated form is sucked and sequentially sent to the transport means 10 by the delivery conveyor 14. .

As shown in FIG. 6, the punched material 2 is sent to the conveying means 10 by the delivery conveyor 14, pushed out by the back pusher 34 and pushed to the position held by the conveying means 10, and the cam mechanism of the position correction tool 21. The 28 rotation shafts 29 are rotationally driven.
Then, immediately before the punched material 2 is held by the conveying means 10, the side cam plate 30 is rotated by the rotating shaft 29 rotating the cam mechanism 28, and the roller 31 is moved inward by the cam surface 30a. .
When the roller 31 is moved inward, the contact tool 26 slides inward, and if the punched material 2 is misaligned, it is corrected by pushing it to the correct position.

Thus, since the punched material 2 is held by the conveying means 10 immediately after the correction, the subsequent processes from punching to punching and separation can be performed accurately, such as characters and designs shown on the surface. The punching process can be performed accurately according to the design.
Thereby, it is possible to prevent as much as possible the occurrence rate of defective products due to the punching process at the shifted position.
While being position correction is placed in such set plate 15 is also upwardly conveyor 14 is part of a subsequent object to be punched material 2 since it to being driven continuously in the punching member 2 of the previous delivery For this reason, the position of the preceding punched material 2 is likely to be shifted, but even in such a case, since the punched material 2 is held by the conveying means 10 immediately after being corrected by the position correction tool 21, It is prevented that it shifts.

Further, by continuously driving the delivery conveyor 14 as described above, it has become possible to supply a part of the subsequent punched material 2 so as to overlap the preceding punched material 2. Therefore, it is not necessary to intermittently drive the delivery conveyor 14, and the feeding speed of the delivery conveyor 14 is significantly lower than the speed in the case of intermittent feeding to feed the punched material 2 one by one. Can be.
In other words, even if the conveying speed of the conveying means 10 is increased, the driving speed of the delivery conveyor 14 can be made to correspond to this, and the productivity can be improved.

As in the above embodiment, the cam is not limited to the sprocket 33 connected to the driving unit of the conveying unit 10 and interlocked with the intermittent driving of the conveying unit 10, and the cam is driven by the motor that is timed directly from the control device. The rotating shaft 29 of the mechanism 28 may be rotated, or the side cam plate 30 can be rotated.
Further, in place of the cam mechanism 28, the contact tool 26 can be driven by an air cylinder or solenoid in conjunction with intermittent conveyance of the punched material 2.

DESCRIPTION OF SYMBOLS 1 ... Flat plate punching device 2 ... Punched material 3 ... Feeder part (Punched material supply part)
DESCRIPTION OF SYMBOLS 4 ... Press part 5 ... Stripping part 8 ... Knock-off part 9 ... Delivery part 10 ... Conveyance means 18 ... Supply position correction means 21 ... Position correction tool 26 ... Abutment tool (plate-like member)

Claims (2)

The punched material supplied in a predetermined size to the punched material supply unit is supplied to the transport means, and the punched material is transferred to the punched material by the press unit while the supplied punched material is transported by the transport means. A predetermined die was pressed, and the non-product part was removed from the pressed punched material, leaving the product part and the gripper margin at the stripping part, and the product part was separated from the gripper margin at the knock-off part and separated by the knock-off part in platen die cutting apparatus which is formed so as to accommodate the product portion by delivery unit, the supply position correcting means for correcting the predetermined position in the width direction of the punching member perpendicular to the feed direction of the punching member, the punching material supply Provided between the section and the conveying means ,
The supply position correcting means is connected to the contact tool that contacts the end surface of the punched material, the roller that is connected to the contact tool and slides in the width direction together with the contact tool, and the conveying means. A rotating side cam plate and an urging spring for urging the roller to abut against the cam surface of the side cam plate, and before starting the conveyance of the punched material, The left and right abutting tools are slid to stand at a position where the distance is slightly larger than the width of the punched material, the conveyance of the punched material is started, and the punched material is placed between the left and right contact tools. When transported, the lateral cam plate rotates to change the position of the roller in contact with the cam surface in the width direction, so that the left and right contact tools slide toward the end surface, and the punched object It is configured to correct the material to a predetermined position. Tairaban punching apparatus. 2. The flat plate punching device according to claim 1, wherein the abutting tool is formed of a plate-like member that abuts and separates from a side edge of the punched material.

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