JP4417526B2 - How to use workpiece punching device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a workpiece punching apparatus that can be suitably used for punching a product from a printing book and a method for using the workpiece punching apparatus.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a work punching system for punching out products from cardboard (print book) for manufacturing cigarette boxes, ramen cups, and the like.
As shown in FIG. 10, the workpiece punching system 1 includes a printing book stacking unit 2 in which a large number of printing books (workpieces) 50 are stacked, a printing book transport unit 3 that transports the printing books 50, and a printing book 50. And a cut forming portion 4 that forms a cut leaving the breakable connecting portion 53.
Among these, the cut forming part 4 forms a cut in the printing book 50 to produce a product part 51 and a peripheral part (dob) 52 connected to the product part 51 via a detachable connecting part 53. It is. The printing book 50 in which the cut is formed in the cut forming unit 4 is sent to the workpiece punching apparatus 10. Next, the printing book 50 is punched by the workpiece punching device 10, the connecting portion 53 of the printing book 50 is broken, and the printing book 50 is separated into the product part 51 and the peripheral part 52.
Thereafter, the product part 51 is taken out from the product take-out part 7 as a product, and the peripheral edge part 52 is discharged from the punching waste discharging part 6 as a punching waste.
[0003]
As shown in FIGS. 11 and 12, the workpiece punching apparatus 10 for punching the product portion 51 from the printing book 50 in the conventional workpiece punching system 1 is mounted on the lower mold 20 on which the printing book 50 is placed and the lower mold 20. And an upper mold 30 that breaks the placed printing book 50 at a connecting portion 53. An opening 23 corresponding to the product portion 51 of the printing book 50 is formed in the lower die 20, and the upper die 30 presses the printing book 50 between the lower die 20 and a connecting portion 53 of the printing book 50. To break. The upper mold 30 may not press the entire surface of the product part 51 as shown in FIG. 12 for stable punching, and the lower mold 20 and the upper mold 30 are prepared for each shape of the product part 51.
[0004]
[Problems to be solved by the invention]
However, it is troublesome to prepare the molds 20 and 30 for each shape of the product parts 51, and in particular, the replacement work of the molds 20 and 30 is troublesome.
Moreover, the manufacturing cost of the molds 20 and 30 is required, and a period for manufacturing the molds is required.
Furthermore, a storage space for the molds 20 and 30 prepared according to the shape of each product part 51 is also required.
[0005]
An object of the present invention is to provide a workpiece punching system and a method of using the workpiece punching machine that can neatly punch a product without mold change even when punching different products.
[0009]
[Means for solving the problems]
The present invention solves the above problems by the following means. In addition, in order to make an understanding easy, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this. The invention of claim 1 includes a work (50) having a plurality of product parts (51) and a peripheral part (52) connected to the product parts (51) via a severable connection part (53). A workpiece punching device for punching, wherein a first die (20) in which an opening (23) corresponding to the product part (51) is formed, a presser plate (34) for pressing the peripheral edge part, and the product part Corresponding to (51), a plurality of product punching pins (32) that can be moved back and forth each time the product is punched, and fixing means (31b, 31c, 31) for fixing the positions of the product punching pins (32). 35, 36, 37, 38), pressing the workpiece (50) with the first mold (20) to break the connecting part (53), and thus the product part (51 ) the method using a second type (30) and the workpiece punching device provided with a separating, said solid The means (31c) is an inflatable tube disposed between the product punching pins (32), and is expanded by air pressure to fix the product punching pin (32). A method for using a workpiece punching device, comprising: a resetting step of simultaneously resetting to an initial state by opening.
[0016]
The invention of claim 2 includes a work (50) having a plurality of product parts (51) and a peripheral part (52) connected to the product part (51) via a severable connection part (53). A workpiece punching device for punching, wherein a first die (20) in which an opening (23) corresponding to the product part (51) is formed, a presser plate (34) for pressing the peripheral edge part, and the product part Corresponding to (51), a plurality of product punching pins (32) that can be moved back and forth each time the product is punched, and fixing means (31b, 31c, 31) for fixing the positions of the product punching pins (32). 35, 36, 37, 38), pressing the workpiece (50) with the first mold (20) to break the connecting part (53), and thus the product part (51 Of a workpiece punching device using a workpiece punching device comprising a second die (30) for separating In use the method, the fixing means, the the pin insertion holes of smaller pore size than the product punching pins, and fixed with fit state interference by inserting the product punching pins, the product punching pins (32) This is a method of using a workpiece punching device, characterized by comprising a reset step (# 106) of resetting the top (32a) of the head to the initial state by pressing them all at once with a flat plate (41).
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
(First embodiment)
FIG. 1 is a view showing a first embodiment of a workpiece punching apparatus according to the present invention.
In addition, the same code | symbol is attached | subjected to the part which fulfill | performs the function similar to the prior art example mentioned above, and the overlapping description is abbreviate | omitted suitably.
The workpiece punching apparatus 10 includes a lower mold 20 and an upper mold 30 and punches a product portion 51 from a printing book 50 conveyed in the direction of arrow A in the drawing.
The lower mold 20 includes a horizontal frame 21 that extends to the left and right with respect to the conveyance direction of the printing book 50 and a vertical frame 22 that is parallel to the conveyance direction of the printing book 50 and is slidably assembled in a grid pattern. An opening 23 corresponding to the product portion 51 of the book 50 is formed. For this reason, even if the shape of the product part 51 changes variously, it becomes unnecessary to prepare the lower mold | type 20 for every product part 51 by changing the shape of the opening 23 of the lower mold | type 20 according to the shape of the product part 51. .
As shown in FIG. 1, the lower mold 20 has the vertical frame 22 on the horizontal frame 21 because the printed book 50 bent at the time of punching is transferred to the lower mold 20 during conveyance. This is to prevent it from being caught.
[0018]
The upper mold 30 includes a pin support plate 31, a product punching pin 32, a slide guide pin 33, and a dove holding plate 34. The pin support plate 31 is a plate-like body that supports the product punching pin 32 so as to advance and retreat, and has a three-layer structure in which an elastic layer 31b is sandwiched between metal plates 31a such as an aluminum plate, an iron plate, and a honeycomb plate. (See FIG. 2A). The product punching pin 32 is pressed against the template 40 to advance and retreat. Here, the template 40 is a mold for molding the upper mold 30 and has substantially the same opening 43 as the lower mold 20, and a portion other than the opening is a plane. Depending on the shape of the product part 51, there may be a case where stable punching can be performed without pressing the entire surface of the product part 51. In this case, the opening of the template 40 is smaller than the opening 43 of the lower mold 20 and the product part 51. It will be a thing. If the upper die 30 is molded with the template 40, the product punching pins 32 are arranged in a flat manner. Therefore, when the product is punched as described later, the product punching pins 32 do not press the dove uniformly. Only the product portion 51 can be pressed and can be punched cleanly. The metal plate 31a penetrates the product punching pin 32 and the slide guide pin 33 slidably. The elastic layer 31b is an elastically deformable layer, and the material thereof is, for example, urethane or rubber. The elastic layer 31b holds the product punching pin 32 in a through hole having a smaller diameter than the product punching pin 32, and the product punching pin 32 inserted into the through hole is in a tightened state. It is held by the tightening force of the elastic layer 31b.
[0019]
The product punching pin 32 is a product punching pin that pushes out the product portion 51 from the printing book 50, and in this embodiment, has a pin diameter of 6 mm.
The product punching pin 32 is provided with a protruding slide stopper 32a at the upper end, and the lower end is crushed to prevent dropping.
In this embodiment, about 8,000 product punching pins 32 are supported on a pin support plate 31 having a size of about 1300 mm × 900 mm at a pin diameter of 6 mm and a pitch of 12 mm.
[0020]
The slide guide pin 33 is slidably inserted into the pin support plate 31, and a dove holding plate 34 is fixed to the lower end. The slide guide pin 33 has a spring 33a around it.
[0021]
The dove holding plate 34 presses the peripheral edge 52 when punching out the product 51 from the printing book 50. The dove holding plate 34 has a through hole through which the product punching pin 32 can pass.
[0022]
FIG. 2 is a diagram showing an upper mold forming process of the first embodiment of the workpiece punching apparatus according to the present invention, FIG. 3 is a diagram showing a punching process, and FIG. 4 is a diagram showing a resetting process.
The workpiece punching apparatus 10 is used as follows.
(Mold setting process; # 101)
The upper mold 30 and the template 40 are arranged at predetermined positions (FIG. 2A). A plan view at this time is shown in FIG.
[0023]
(Upper mold first step; # 102)
The upper mold 30 is lowered and pressed against the template 40.
At this time, among the product punching pins 32, the product punching pins 32 that do not hit the template 40 are lowered and protrude from the dove holding plate 34, but the product punching pins 32 that hit the template 40 are lifted up. Then, it protrudes from the pin support plate 31 (FIG. 2B).
[0024]
(Upper mold second step; # 103)
Next, the upper mold 30 is raised and separated from the template 40.
At this time, the dove holding plate 34 is pushed back by the spring 33a. The product punching pin 32 is fixed and held by the pin support plate 31 and maintains a certain shape (FIG. 2C).
[0025]
(Product clamping step; # 104) The dove holding plate 34 of the upper mold 30 and the lower mold 20 hold the peripheral edge 52 therebetween (FIG. 3A).
[0026]
(Product punching process; # 105)
Next, the product punching pin 32 held in a fixed shape on the upper mold 30 is lowered, the connecting portion 53 of the printing book 50 is broken, and the product portion 51 is punched (FIG. 3B).
[0027]
(Reset process; # 106)
When punching a product of another shape, as shown in FIG. 4, the reset plate 41 is pressed against the top of the product punching pin 32 to return to a flat state (reset). Then, the process returns to # 101 again, and the upper mold 30 is pressed against the template 40 of the product to be newly punched, and the upper mold 30 is molded.
[0028]
According to the present embodiment, the upper mold 30 can be easily pressed by pressing the upper mold 30 against the template 40, and there is no need to replace the mold even when punching any product.
In addition, since the reset plate 41 is used, resetting when a product with a different shape is punched out can be easily performed.
Furthermore, since the lower mold 20 can freely change the shape of the opening 23 in accordance with the shape of the product portion 51, various product portions 51 can be punched with one lower mold 20.
[0029]
(Second Embodiment)
FIG. 5 is a view showing a second embodiment of the workpiece punching apparatus according to the present invention, FIG. 5 (A) to FIG. 5 (C) are side views showing upper mold molding, and FIG. 5 (D) is FIG. It is a top view of (B).
The upper die 30 of the workpiece punching apparatus 10 according to the present embodiment has air tubes 31c spread between product punching pins 32 (see FIGS. 5A and 5D). In the present embodiment, the upper mold 30 is pressed against the lower mold 20 and molded. By pressing the upper mold 30 against the lower mold 20 and molding, the template 40 is unnecessary, and the cost can be reduced.
[0030]
(how to use)
After the lower die 20 and the upper die 30 are arranged at predetermined positions (# 201; FIG. 5A), the upper die 30 is lowered, the product punching pin 32 is applied to the lower die 20, and the upper die 30 is advanced and retracted. After mold forming, air is introduced into the air tube 31c (# 202; FIG. 5B). Then, the air tube 31c expands, and the product punching pin 32 is held by the expansion force.
When the upper die 30 is raised, the product punching pin 32 is held in its original shape, and the upper die is molded (# 203; FIG. 5C).
In the present embodiment, if the air in the air tube 31c is removed, the product punching pin 32 is lowered by its own weight and is reset to the initial state.
[0031]
According to the present embodiment, since the product punching pin 32 is held by the expansion of the air tube 31c, the product punching pin 32 can be easily set and reset.
[0032]
(Third embodiment)
FIG. 6 is a side view showing an upper mold forming process of the third embodiment of the workpiece punching apparatus according to the present invention.
The slide stopper 32a of the product punching pin 32 of the workpiece punching apparatus 10 of the present embodiment is made of iron and can be attracted by a magnet. The upper die 30 has an electromagnet plate 35 on the upper side (see FIG. 6A), and the pin support plate 31 is also a magnetizable electromagnet plate.
[0033]
(how to use)
After the upper mold 30 and the template 40 are arranged at predetermined positions (# 301; FIG. 6A), the upper mold 30 is lowered and the product punching pins 32 are applied to the template 40 to form a shape. At this time, the slide stopper 32a of the product punching pin 32 contacts the electromagnet plate 35 (# 302; FIG. 6B). In this state, when an electric current is passed through the electromagnet plate 35 and the pin support plate 31 and magnetized, the slide stopper 32a is attracted to the electromagnet plate 35 and the pin support plate 31, and the product punching pin 32 is held.
Next, when the upper die 30 is raised, the product punching pin 32 is held in the same shape, and the upper die 30 is molded into a predetermined shape (# 303; FIG. 6C).
When punching another product, if the magnetization of the electromagnet plate 35 and the pin support plate 31 is released, the product punching pin 32 descends by its own weight and is reset to the initial state.
[0034]
According to this embodiment, since the product punching pin 32 is held by the electromagnet, the product punching pin 32 can be easily set and reset.
[0035]
(Fourth embodiment)
FIG. 7 is a view showing a fourth embodiment of the workpiece punching device according to the present invention. FIGS. 7A to 7C are side views showing upper mold forming, and FIG. 7D is FIG. It is a top view of (B).
The product punching pin 32 of the workpiece punching device 10 of the present embodiment has a bowl-shaped slide stopper 32a (FIG. 7A).
[0036]
(how to use)
After the upper die 30 and the template 40 are arranged at predetermined positions (# 401; FIG. 7A), the upper die 30 is lowered, and the product punching pin 32 is applied to the template 40 so as to advance and retract. After the molding, the spacer 36 is inserted between the slide stoppers 32a of the product punching pins 32 (# 402; FIGS. 7B and 7D).
When the upper die 30 is raised, the product punching pin 32 is held in its original shape, and the upper die is molded (# 403; FIG. 7C).
When punching another product, if the spacer 36 is removed, the product punching pin 32 is lowered by its own weight, so that it is reset to the initial state.
[0037]
According to the present embodiment, since the product punching pin 32 is physically held by the spacer 36, the product punching pin 32 can be securely held.
[0038]
(Fifth embodiment)
FIG. 8 is a view showing a fifth embodiment of the workpiece punching apparatus according to the present invention, FIGS. 8A to 8C are side views showing upper mold molding, and FIG. 8D is FIG. It is a top view of (B).
The product punching pin 32 of the workpiece punching apparatus 10 of the present embodiment is provided with two notches 32b and 32c.
[0039]
(how to use)
After the upper mold 30 and the template 40 are arranged at predetermined positions (# 501; FIG. 8A), the upper mold 30 is lowered, the product punching pin 32 is applied to the template 40, and the upper mold 30 is moved forward and backward. After molding, the flat bar 37 is inserted between the notches 32b and 32c (# 502; FIGS. 8B and 8D).
When the upper die 30 is raised, the product punching pin 32 is held in its original shape, and the upper die is molded (# 503; FIG. 8C).
When another product is punched, the product punching pin 32 is lowered by its own weight when the flat bar 37 is pulled out, so that it is reset to the initial state.
[0040]
According to the present embodiment, the product punching pin 32 is physically held by the flat bar 37, so that the product punching pin 32 can be reliably held.
[0041]
(Sixth embodiment)
FIG. 9 is a view showing a sixth embodiment of the workpiece punching apparatus according to the present invention. FIGS. 9A to 9C are side views showing upper mold forming, and FIG. 9D is FIG. FIG. 9B is an enlarged plan view of the flat bar.
The workpiece punching apparatus 10 of the present embodiment includes a flat bar 38 that is slidable and has a recess 38a (see FIG. 9E). Further, the product punching pin 32 is provided with two notches 32b and 32c as in the fifth embodiment.
[0042]
(how to use)
After the upper die 30 and the template 40 are arranged at predetermined positions (# 601; FIG. 9A), the upper die 30 is lowered and the product punching pin 32 is applied to the template 40 to form the shape. The bar 38 is slid and inserted between the notches 32b and 32c (# 602; FIGS. 9B and 9D).
When the upper die 30 is raised, the product punching pin 32 is held in its original shape, and the upper die is molded (# 603; FIG. 9C).
When punching another product, if the flat bar 38 is slid and the recess 38a is aligned with the product punching pin 32, the product punching pin 32 is lowered by its own weight and reset to the initial state.
[0043]
According to the present embodiment, since the flat bar 38 includes the recess 38a, the product punching pin 32 can be set / reset with a small amount of slide movement.
[0044]
(Deformation)
The present invention is not limited to the embodiment described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention. For example, in the second embodiment, the upper mold is pressed against the lower mold for molding, but may be molded by pressing against a template having the same opening as the lower mold . By doing so, there is no burden on the lower mold, so the life of the lower mold is extended. In another embodiment, the upper mold may be pressed against the lower mold for molding.
[0045]
【The invention's effect】
As described in detail above, according to the first aspect of the present invention, a plurality of product punching pins corresponding to the product portion and capable of advancing and retracting each time the product is punched with respect to the presser plate that presses the peripheral portion, and the product punching pin. Since there is a fixing means for fixing the position of the mold, there is no need to change the mold even when punching out any product.
[0048]
According to the invention of claim 2 , since the expandable tube disposed between the product punching pins is inflated by air pressure to fix the product punching pin , the product is punched all at once by releasing the air pressure to the atmosphere. Li set of disconnect pin can be easily performed.
[0053]
According to the invention of claim 3 , the second mold has substantially the same opening as that of the first mold, and the portions other than the opening are pressed against the template which is a flat surface, and the shape of the product portion is influenced. Since the second mold with the desired product punching pin not projected is formed, the product portion can be punched cleanly.
[0055]
According to the invention of claim 4, the tops of the product punching pins are pushed all at once with a flat plate to return to the initial state, so that they can be easily reset.
[Brief description of the drawings]
FIG. 1 is a diagram showing a first embodiment of a workpiece punching apparatus according to the present invention.
FIG. 2 is a diagram showing an upper mold forming process of the first embodiment of the workpiece punching apparatus according to the present invention.
FIG. 3 is a diagram showing a punching process of the first embodiment of the workpiece punching apparatus according to the present invention.
FIG. 4 is a diagram showing a reset process of the first embodiment of the workpiece punching apparatus according to the present invention.
FIG. 5 is a view showing a second embodiment of a workpiece punching apparatus according to the present invention.
FIG. 6 is a side view showing an upper mold forming process of a third embodiment of the workpiece punching apparatus according to the present invention.
FIG. 7 is a diagram showing a fourth embodiment of a workpiece punching device according to the present invention.
FIG. 8 is a diagram showing a fifth embodiment of a workpiece punching apparatus according to the present invention.
FIG. 9 is a view showing a sixth embodiment of the workpiece punching apparatus according to the present invention.
FIG. 10 is a diagram showing an entire workpiece punching system.
FIG. 11 is a view showing a conventional workpiece punching apparatus.
FIG. 12 is a view showing a mold of a conventional workpiece punching device.
[Explanation of symbols]
10 Work punching device 20 Lower die 21 Horizontal frame 22 Vertical frame 23 Opening 30 Upper die 31 Pin support plate 31c Air tube 32 Product punching pin 32a Slide stopper 32b, 32c Notch 33 Slide guide pin 34 Dove holding plate 35 Electromagnetic plate 36 Spacer 37, 38 Flat bar 40 Template 41 Reset plate 50 Book 51 Product part 52 Peripheral part 53 Connecting part

Claims (2)

A workpiece punching device for punching a workpiece having a plurality of product parts and a peripheral part connected to the product part via a severable connecting part,
A first mold in which an opening corresponding to the product part is formed;
A pressing plate for pressing the peripheral edge, a plurality of product punching pins corresponding to the product portion, which can be moved forward and backward for each product punching, and a fixing means for fixing the position of the product punching pin. And a second die for pressing the workpiece to break the connecting portion and separating the product portion between the first die and the first die.
In a method of using a workpiece punching device using a workpiece punching device comprising:
The fixing means is an inflatable tube disposed between the product punching pins, and is expanded by air pressure to fix the product punching pin,
A method for using a workpiece punching device, comprising: a reset step of simultaneously resetting the air pressure to the atmosphere by releasing the air pressure to the initial state. A workpiece punching device for punching a workpiece having a plurality of product parts and a peripheral part connected to the product parts via a severable connecting part,
A first mold in which an opening corresponding to the product part is formed;
A presser plate for pressing the peripheral edge, a plurality of product punching pins corresponding to the product part and capable of moving forward and backward with respect to the presser plate for each product punching, and a fixing means for fixing the position of the product punching pin. And a second die that presses the workpiece to break the connecting portion and separates the product portion between the first die and the first die.
In a method for using a workpiece punching device using a workpiece punching device comprising:
The fixing means is inserted in a pin insertion hole having a smaller diameter than the product punching pin, and fixed in a tightened state by inserting the product punching pin,
A method for using a workpiece punching device, comprising: a resetting step of simultaneously resetting the tops of the product punching pins with a flat plate to an initial state.

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