JP2539943Y2 - Perforators for stamps, stamps, etc., provided with a guide member for preventing ink rubbing - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch for use in a press-type punching apparatus for punching a large number of small holes at a boundary between stamps, stamp sheets and other stamps.

[0002]

2. Description of the Related Art Conventionally, a punch of this type includes a die block in which die holes each having a large number of small holes are arranged in rows and columns, a punch block in which a large number of pin punches corresponding to the die holes are arranged in rows and columns, and these pin punches. And a guide member for removing the perforated sheet from the pin punch. Thus, the die is fixed to a fixed base of the punching device, the punch block is fixed to a vertically moving member, and the guide member is provided between the die block and the punch block. The punched hole and the pin punch are separated from the die block with respect to the die block through the holes, and are inserted between the die block and the guide member. (Including belt-shaped ones) are sequentially loaded from one direction, the punch block is lowered, and each pin punch guided by each guide small hole of the guide member penetrates the perforated sheet and inserted into the die hole of the die block. Is done.

Next, only the punch block starts to rise,
When exiting from the die hole at the end of each pin punch, the perforated sheet separates from the die together with the die punch, and when each pin punch further rises, the perforated sheet hits the lower surface of the guide member and stops. Then, the perforated sheet is placed on the die block. Thereafter, the next transport is performed. Therefore,
During the perforation work, the perforated sheet always contacts the lower surface of the guide member once. Also, usually a multicolor printing device is provided upstream of the punching device to which the punch is attached,
It can be said that the perforated sheet that has just been printed passes through the dryer, but if the drying is insufficient, the lower surface of the guide member hits the printing surface, so that the ink adheres to the lower surface of the guide member and the next perforation step. At that time, the ink may be reflected on a new perforated sheet surface and may contaminate the sheet.
In rare cases, turbulent airflow in the workplace may cause the perforated sheet to be lifted from the surface of the die block during transportation, causing the printing surface to come into contact with the lower surface of the guide member, causing the printing surface to slide and become dirty.

[0004]

As described above, in this invention, even if the lower surface of the guide member inevitably contacts the printed perforated sheet surface, the guide member prints the perforated sheet surface. To provide a market for punches, such as stamps and stamps, provided with an ink-skid-preventing guide member that has a surface that is not contaminated and that can sufficiently guide each pin punch in the same manner as a conventionally known guide member for a punch. That is.

[0005]

In order to achieve the above-mentioned object, the present invention provides a die block having a large number of small holes formed in rows and columns, and a large number of pin punches corresponding to the die holes. In a press-type punching machine having a punch block that is arranged and planted, and guide holes for vertically and horizontally engaging guide holes respectively fitted with the pin punches, and a guide member for removing a perforated sheet from the pin punches, On the die block surface side of the guide plate, the vicinity of the guide small hole array in the traveling direction of the perforated sheet is provided with an ink sliding prevention guide member which is protruded from other parts toward the die block surface. Stamps, stamps, etc.

Further, in order to achieve the above-mentioned object, in order to achieve the above object, the guide plate of a punch, such as a stamp or a stamp, provided with the anti-scratch guide member, is perpendicular to the advancing direction of the perforated sheet on the die block side of the guide plate of the punch. In some cases, the degree of protrusion in the vicinity of the guide hole array is slightly lower than that in the vicinity of the guide hole array in the traveling direction.

[0007]

In order to use the punch in the present invention constructed as described above, the die is mounted on the die block mounting portion of the punch while the die block, punch block and guide member are combined. Secure the block to the die mount. Normally, the guide member is fixed at a position slightly away from the die surface. Next, the vertically movable member of the punching device is lowered and brought into contact with the upper surface of the punch block, and the punch block is fixed to the vertically movable member. In this case, each tip of each pin punch is designed in advance so that the upper limit position of the stroke is in the guide hole of the guide member and the lower limit position of the stroke is in the die hole of the die block.

[0008] An intermittent conveying device provided between the die block and the guide member from an upstream side, and a belt-shaped perforated sheet on which stamps, stamps and the like are sequentially printed, and provided on the downstream side of the perforating device, For example, it is supplied to a pair of rollers. Then, after positioning, the positions to be punched by the punch are located at intermediate positions (gutter positions) of the boundaries of a number of stamps and stamps printed on the perforated sheet.
The punching device and the transport roller are operated.

With this configuration, the punching device is intermittently transported by the transport rollers, and each time the punching device stops, the movable member of the punching device descends from the upper standby position to the punch block, and each pin punch is moved to each of the guide members. It is guided by the guide holes and descends, penetrates the guide member, the lower end of each pin punch hits the perforated sheet, perforates the perforated sheet with each die hole of the die block, and each pin punch is slightly inserted into the die hole. . Next, when the punch block starts to rise, the perforated sheet fitted with the pin punch group rises together therewith. When the sheet is further raised, the perforated sheet hits a downwardly protruding ridge near the row of guide holes on the lower surface of the guide member and is prevented from rising. When the punch block further rises, each pin punch also rises, and its lower end finally comes off the perforated sheet completely, and the perforated sheet falls onto the die block. The next conveyance is performed in this state.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will now be given based on a typical embodiment of the present invention. 1 to 3, reference numeral 10 denotes a die block, which includes a die plate 12 having a large number of flat die holes 11 and a die base 13 for supporting the die plate.

Reference numeral 20 denotes a punch block, which comprises a pin punch support plate 22 having a large number of pin punches 21 planted thereon and a punch base 23 for supporting the plate. The positions where the large number of pin punches 21 are planted are completely matched with the positions of the die holes 11, and these arrangements are arranged vertically and horizontally in a lattice pattern.

Numeral 30 denotes a guide member, which is a plate material having a thickness slightly smaller than the length of each pin punch 21 protruding from the punch block 20, and a group of guide small holes 31 always fitted with the respective pin punches 21. Has been drilled,
When assembled with the die base 12 forming a part of the die block 10, the guide member 30 is formed such that a gap D of 3 mm to 5 mm is formed between the die block 10 and the guide member 30.
Are provided with space projections 32 on both left and right sides. Of the guide holes 31 of the guide member 30, the lower surface near the guide hole array 31a arranged in the conveying direction of the perforated sheet 40 is:
As a ridge 33 protruding about 1 mm from other parts,
The width b of the ridge 33 is smaller than the width of a portion (usually referred to as a gutter) where printing is not performed between stamps and stamps. In the embodiment, the width b is about 1 mm centering on the guide holes 31a. Further, in the illustrated example, the vicinity of the guide small hole row 31b in the direction perpendicular to the conveying direction of the perforated sheet 40 is also formed as the ridge 34, but the ridge 34 has a protrusion dimension of about 1 mm more than the ridge 33.
It has been lowered. The portion without the ridges 33 and 34 is a large clearance space 35, and the depth thereof is about 3 mm based on the top surface of the ridge 33.

In this invention, the die block 10 and the guide member 30 are usually fixedly assembled integrally and fixedly. In this case, the sheet to be conveyed is provided between the surface of the die block 10 and the guide member 30. Gap D where 40 can carry in and out
Is formed. Further, all the pin punches 21 of the punch block 20 are
Are slidably inserted into the corresponding guide holes 31.
In order to assemble the punch thus constructed in this embodiment to the punch, the same procedure as in the case of the present invention is used. Thus, when the perforated sheet 40 is supplied between the die block 10 and the guide member 30 and the perforating apparatus is operated, the perforated sheet 40 is intermittently conveyed by a conveying roll, and every time the perforated sheet 40 is stopped, the punch block is stopped. 20 is lowered and the pin punches integrated therewith are lowered while being guided by the guide holes 31 of the guide member 30, respectively, and hit the perforated sheets stopped on the die block 10. These pin punches 21 40, each is inserted into the die hole 11 of the die block 10, and is perforated.

Next, the punch block 20 starts to rise,
The perforated sheet 40 moves up with each pin punch 21.
Next, the perforated sheet 40 hits the ridge 32 protruding below the guide member 30, and when the punch block 20 further rises, only the pin punches 21 rise, and each pin punch 21 is removed from the perforated sheet 40 and the perforated sheet. 40 falls and is placed on the upper surface of the die block 10, and the next transfer is performed. The above-described guide member 30 is used for the perforated sheet 40.
Is a part of the ridge 32 in the traveling direction, and the other part has a shape of the escape space 35 receding upward from the ridge 32, so that it does not hit the surface of the perforated sheet 40, and the air layer is interposed. I have.

[0015]

[Effects of the Invention] In this invention, which is constructed and operates as described above, a guide hole in a conveying direction of a perforated sheet of a guide member is provided in a gutter portion between printings such as stamps and stamps. Because only the ridges near the row contact,
Even if the ink on the printing surface of the perforated sheet is not sufficiently dried, the ink does not adhere to the guide member, and there is no possibility that the perforated sheet is soiled. Also, since each guide small hole portion of the guide member is provided in a ridge portion protruding downward, the length of each guide hole is sufficient, and during the vertical movement of the punch block, each pin punch is This has the effect of being accurately guided without being distorted.

According to the second aspect of the present invention, since the guide hole row in the direction perpendicular to the traveling direction of the perforated sheet is also ridged, the pin punch group arranged in this direction is sufficiently guided by the guide small holes. . In addition, since the portion other than the ridge is a large escape space, the guide member does not come into contact with the perforated sheet in a large area, and since most surfaces have an air layer therebetween, the guide member and the perforated sheet are in a decompressed state. When each pin punch comes off the perforated sheet, the perforated sheet is securely placed on the die block. As the effects specific to the embodiment, the effects described in claims 1 and 2 are also provided. Also, the width of each ridge 32, 33 is extremely narrow, 1 mm,
Even if the positions of the perforator and the perforated sheet are slightly shifted to the left and right, the loss of the product is reduced without making the product itself defective within the range of the gutter on the printing surface.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of an exemplary embodiment.

FIG. 2 is a partially cutaway front view of FIG. 1;

FIG. 3 is a perspective view of a lower surface of a guide member that has been turned upside down.

[Explanation of symbols]

 Reference Signs List 10 die block 20 punch block 30 guide member 40 perforated sheet

Claims (2)

(57) [Scope of request for utility model registration] A die block having a large number of small holes arranged in rows and columns, a punch block in which a large number of pin punches corresponding to the die holes are arranged in rows and columns, and In a press-type punch having a guide small hole fitted in each of the vertical and horizontal directions and having a guide member for removing a perforated sheet from a pin punch, the die plate surface side of the guide plate is in the advancing direction of the perforated sheet. A punch or stamper provided with an ink-slip prevention guide member, characterized in that a portion near the guide small hole row protrudes from other portions toward the die block surface. 2. A protruding degree of a guide hole array perpendicular to the advancing direction of the perforated sheet on the die block surface side of the guide plate is slightly lower than that of the guide hole array in the advancing direction. A punch, such as a stamp, a stamp, or the like, provided with the ink sliding prevention guide member according to claim 1.