JP3010125B2 - Single sheet punching machine - 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 die for a sheet-sheet punching machine for manufacturing a plurality of small cards by punching a plurality of small card printing portions regularly printed on a sheet. The present invention relates to a sheet-sheet punching manufacturing machine which can make a reference line for sheet-feeding a sheet after grinding and repairing deterioration caused by abrasion of a die-cutting surface of a die and a die surface after grinding.

[0002]

2. Description of the Related Art Conventionally, a plurality of small card groups such as telephone cards and credit cards have been manufactured by feeding a single sheet (sometimes referred to as a raw sheet) with a punching die and punching out appropriate places. However, as shown in FIG. 15A, a single sheet is fed into a punching die portion, and a plurality of small cards are punched out from the single sheet by a punch and a die. It is manufactured. As shown in FIG.
As shown in (b), the punching and cutting surface of the die of the punching die has a worn portion m, deteriorating the punching and cutting ability, and gradually finishing the cutting surface of the small card from the single sheet in the punching operation. It becomes bad. Then, the die is taken out from the die for punching, and as shown in FIG.
The punched and cut surface of the die is ground to remove the abraded portion m so as to be in a sharp state so that a good cut surface can be obtained again.

[0003]

By grinding the punching and cutting surface of the die, it is possible to improve the finish of a small card cut out by cutting a small card printing portion of a sheet. However, the surface of the punching die of the die is lowered only in the ground portion. Even if the amount of the lowering of the surface is a small amount Δd (see FIG. 16), when the sheet is fed from the sheet feeding section into the punching die in this state, the sheet reaching the die surface is obtained. The leaf sheet is lowered by the ground portion (the minute amount Δd), and the small card printing portions p printed on the single sheet S cannot coincide with the positions of the punched holes of the die,
For this purpose, as shown in FIG.
, The blank is cut by a small amount Δs in the horizontal direction. When a small card is manufactured from a single sheet by pressing a punch on the die, as shown in FIG. 18, the small amount Δs Will be shifted only by
A disadvantage arises in that a small card group cannot be accurately manufactured from a single sheet.

[0004]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the present invention provides a die for punching a single sheet having a die and a punch, and a die for punching the sheet. A sheet feeding device that feeds a sheet into a mold, the sheet feeding device having a sheet sheet feeding portion that can be moved up and down, and a sheet feeding reference line of the sheet feeding portion. By using a sheet-fed sheet punching manufacturing machine capable of adjusting the height so as to be flush with the surface of the die, even after grinding the die-cutting surface of the die of the punching die, The present invention has solved the above-mentioned problem by allowing a small card printing portion to be accurately punched and cut from a leaf sheet.

[0005]

First, the punched hole 1 of the die 1 of the die A for punching.
a gradually wears out as it is used for a long time, and the sharpness for forming small cards s, s,... cut out by punching a plurality of small card printing sections p, p,. See FIGS. 15A and 15B]. Then, the die 1 is removed from the die A for punching, and the die 1 is removed until the worn portion m of the punched hole 1a deteriorated in punching and cutting disappears.
Then, the cut surface is ground (see FIG. 15C). In this state, the die 1 is returned to the predetermined position of the bolster 3 of the punching die A and fixed. At this time, assuming that the grinding amount of the die 1 is Δd, the sheet feeding section B _{1 of the} sheet feeding apparatus B depicting If left state before grinding the die 1, sheet single wafer sheet S while reaching the die 1 surface from the sheet feeding unit B ₁ punching die a is a gentle arc only amount Δd was ground (See FIG. 16).

For this reason, even if the sheet S is fed by an accurate feed amount from the sheet feeding section B ₁ and stopped, the position of the punch cutting between the die 1 and the punch 2 of the die A for punching is stopped. Means that a small amount Δs shifts. Therefore, even if the punch 2 is dropped on the die 1 of the punching die A as it is, the small card printing portions p, p,... Will be manufactured (see FIGS. 17 and 18).

Accordingly, lowering the single sheet feeding unit B ₁ only amount Δd obtained by grinding the punching cut surface of the die 1 single sheet feeder B [refer to FIG. 9 (a) and (b)].
That is, the sheet feeding reference line L in the horizontal direction in which the sheet S is sent out in the direction of the punching die A by the sheet feeding section B ₁ is the same as the punched cut surface of the die 1 after grinding. (See FIG. 10). Thereby, the die A for punching the sheet S from the sheet feeder B is used.
When the sheet is sent out to the small die printing section A, the small card printing sections p, p,... From the sheet S exactly match the punching holes 1a of the die 1, and the small card printing sections p, p,. Is accurately punched and cut with a punch 2, and a high quality small card s,
.. can be manufactured (see FIG. 11).

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an apparatus of the present invention includes a plurality of small cards s, s, a sheet S (raw sheet). , And a sheet feeding device B. As shown in FIGS. 2 and 3, the punching die A includes a die 1 and a punch 2, and is manufactured by punching a plurality of small cards s, s,. , The punch 2 moves in the vertical direction, and the punch 2 bites into the sheet S existing on the die 1 so that the small cards s, s,... Are cut from the sheet S. It is manufactured by

As shown in FIGS. 2, 3 and the like, the die 1 has a punching hole 1a where the punch 2 bites, and the punch 2 bites into the dice 1 to remove a plurality of small cards from the sheet S. s, s,... are formed [FIG.
reference〕. Although not particularly shown, small cards s, s,.
May be configured to be able to fall below the punched hole 1a of the die 1 and be appropriately bundled.
A small card carrier or the like is provided below the die 1 so that small cards s, s,... Punched out from the punching die A can be easily transported to the next process section.

[0010] Its single sheet feeder B, as shown in FIG. 1, single sheet feeding unit B ₁ is provided, from該枚leaf sheet feeding unit B ₁ in the feed roller 10 and the feed table 11 It is configured. Its single sheet feeding section feeding roller 10 of the B ₁ represents and a lower roll 10a and an upper roll 10b (see FIG. 2, FIG. 3). The lower roll 10a and the upper roll 10b feed the sheet S in the direction of the punching die A while sandwiching the sheet S, and a horizontal line through which the sheet S is fed horizontally. Is a sheet-feeding sheet feeding reference line L.

The upper roll 10b of the feed roller 10
Can move up and down with a slight stroke with respect to the lower roll 10a, and when the sheet S enters between the lower roll 10a and the upper roll 10b, the upper roll 10b
When the feed roller 10 is actuated to feed the sheet S into the punching die A, the upper roll 10b is close to the lower roll 10a, and the sheet S is transferred to the lower roll 1.
The sheet S is transported by being rotated in opposite directions while being sandwiched between the upper roll 10a and the upper roll 10b.

[0012] feeding conveyor 12 or the like together with the roller 10 and the feed table 11 sent to the single sheet feeding unit B ₁ single sheet S is provided (see FIG. 1). Then, the sheet S is fed from the sheet feeding section C one by _{one in} the direction of the sheet feeding section B ₁ of the sheet feeding apparatus B, and the feeding conveyor 12, the feeding table 11 and the feeding roller 10 are fed. Die A for punching sheet S in order
It is sent to the part.

[0013] The single sheet feed unit B ₁ represents, vertically movable is constituted, for elevating structures, various embodiments exist. The first embodiment will be described. The lifting base 1 of the sheet feeding section B ₁ is mounted on a fixed support base 14.
The guide posts 1 are provided at four corners of the lifting base 13.
Are provided (see FIGS. 4 and 6). The guide posts 15 and 15, in which it is possible to prevent swinging to and fro by single sheet feeding unit B ₁ according ... to lift. Further, the fixed support base 14 is provided with a screw rod 16 and a driving means 17 for driving the screw rod 16 to rotate. The screw rod 16 is provided perpendicular to the fixed support base 14, and has a bearing 19 so that it can rotate in a stable state in the axial direction.
Supported by

Further, an elevating body 18 is provided on the screw rod 16 while being screwed thereto, and the elevating body 18 can be moved up and down with rotation of the screw rod 16 in the axial circumferential direction. The elevating body 18 has a support frame 18b formed on a driven screw portion 18a, and the elevating base 13 is provided on the support frame 18b (see FIG. 5). A plurality of the screw rods 16 are provided, and two of them are provided in the embodiment in the drawing (provided at both ends of the lifting base 13 in the embodiment). The screw rods 16, 16 are simultaneously rotated at a constant speed, and the lifting members 18, 18 provided on each of them are moved up and down at the same speed. Further, in another embodiment provided with a lifting cylinder 20 at the bottom of the sheet-fed sheet feeding unit B _1, also present embodiment to be able to adjust the appropriate height by the lifting cylinders 20.

Next, the die 1 of the punching die A is fixed to the bolster 3. Punching hole 1 of the die 1
When the surface portion of a is worn out and deteriorated by punching and cutting, it is removed by grinding to repair it, and the die 1
The bolster 3 is provided with a positioning shaft 4 for mounting the bolster 3 at the first correct position when the bolster 3 is mounted (see FIG. 12). The positioning shaft 4 is configured to project from the bolster 3 and to be retractable, and specifically, the above operation is performed by the drive cylinder 5. The tip of the positioning shaft 4 is substantially conical, and the head is slightly flat. Such a positioning shaft 4 is attached to the bolster 3
It is provided in places.

Further, a push-up protrusion 6 is provided near the positioning shaft 4 so as to be retractable into the bolster 3. The push-up protrusion 6 has an elastic body such as a coil spring incorporated therein so as to elastically protrude from the surface of the bolster 3. A positioning shaft 4 is provided on the lower surface of the die 1.
Are formed in which positioning heads 1b, 1b into which the heads can be inserted are formed. First, with the die 1 removed from the bolster 3,
The push-up protrusion 6 protrudes from the bolster 3. When the die 1 whose surface has been ground is placed on the bolster 3, the die 1 is inserted into the positioning holes 1b, 1b of the die 1, and the die 1 is pressed against the surface of the bolster 3 as it is. At this time, the die 1 is pressed against the bolster 3 and the positioning shaft 4 sinks by the surface of the bolster 3, and finally the fluid of the drive cylinder 5 for operating the positioning shaft 4 is drained (see FIG. 13).

When the positioning hole 1b of the die 1 and the positioning shaft 4 of the bolster 3 are tapered in a conical shape as described above, the die 1 is mounted on the tip of the positioning shaft 4 when the die 1 is mounted on the bolster 3. The center line of the die 1 and the center line of the positioning shaft 4 of the bolster 3 automatically coincide with each other by inserting the positioning hole 1b and lowering the die 1 [FIGS. 14 (a) and 14 (b)]. )reference〕. Further, the die 1 is provided with a holding lock mechanism 21 mounted on the bolster 3.
(See FIGS. 12 and 13). The holding lock mechanism 21 is driven by a hydraulic cylinder or the like.

[0018]

According to the first aspect of the present invention, there is provided a die A for punching a single sheet provided with a die 1 and a punch 2, and a sheet feeding device B for feeding a single sheet S to the die A for punching. against the will have該枚leaf sheet feeding apparatus liftable single sheet feeding unit B ₁ in B,該枚leaf sheet feeding section B ₁ of single sheet feeding reference line L of the surface of the die 1 First, a single sheet punching manufacturing machine capable of adjusting the height so as to be on the same surface allows the die 1 of the punching die A to be cut even after grinding to improve the cutting state of the die 1. Second, it is possible to prevent displacement of the small card cutting portion of the sheet S, and secondly, it is possible to extremely accurately manufacture small cards from the single sheet S.

The above-mentioned effect will be described in detail. A die A for punching a single sheet having a die 1 and a punch 2 and a sheet feeding apparatus B for feeding a single sheet S to the die A for punching are as follows. sheet and the sheet feeding section B ₁ of single sheet feeding of the line so as to present on the surface and the same surface of the die 1, the same surface also includes those at the die grinding completion, always the same surface maintained The small card s from the single sheet S can be manufactured very accurately.

Next, in a second aspect, in the first aspect, the single sheet feeding section B of the single sheet feeding apparatus B is provided.
₁ is a sheet-fed sheet punching manufacturing machine provided with elevating means 17 capable of moving up and down in the vertical direction, so that the sheet-feeding section B ₁ can be appropriately adjusted according to the ground surface of the die 1 of the punching die A. By moving the operator vertically, the operator can work very simply and efficiently.

According to a third aspect of the present invention, in the first aspect, the single sheet feeding apparatus B includes a screw rod 16 rotatable in the axial circumferential direction and a driving means 17 for driving the screw rod 16 to rotate. its the screw rod 16 is provided an elevating body 18 which moves up and down with the rotation, single sheet feeding unit B ₁ the lifting body 18 is suitably that was linked comprising single sheet punching manufacturing machine to, for repair It is possible to accurately and efficiently correspond to the die 1 whose surface has been ground.

That is, since the elevating body 18 is moved up and down by the screw rods 16, 16,.
The lifting body 18 single sheet feeding unit B ₁ linked to can perform an accurate vertical movement. Then, in order to eliminate the worn portion m of the punched hole 1a in which the punching / cutting ability of the die 1 has deteriorated, the punching / cutting surface of the die 1 is ground, and then the surface of the die 1 and the sheet feeding section B ₁ ( to match the surface of the feed table 11), single elevation leaf sheet feeding section B ₁ can be performed easily and quickly, and the position of the sheet-fed sheet feeding section B ₁ can be accurately set .

[Brief description of the drawings]

FIG. 1 is a schematic side view of the present invention.

FIG. 2 is a perspective view showing a die, a feed roller, and a feed table.

FIG. 3 is a schematic side view showing a die, a feed roller, and a feed table.

FIG. 4 is a side view of the sheet feeding apparatus.

FIG. 5 is a front view of the sheet feeding apparatus.

FIG. 6 is a schematic perspective view of a sheet-feeding apparatus.

FIG. 7 is a schematic view of another embodiment of the present invention.

FIG. 8 is a schematic diagram showing the configuration of the present invention.

9A is an enlarged schematic view of a main part before grinding a die, and FIG. 9B is an enlarged schematic view of a main part after grinding a die.

FIG. 10 is a schematic side view showing a state in which a small card printing portion of a single sheet is aligned with a punched hole of a die.

FIG. 11 is a schematic plan view showing a state in which a small card printing portion of a single sheet is aligned with a punched hole of a die.

FIG. 12 is a schematic view showing a structure for accurately mounting a die at a predetermined position of a bolster.

FIG. 13 is a schematic diagram showing a state in which a dice is accurately mounted on a predetermined position of a bolster.

FIG. 14A is an enlarged schematic view showing that a bolster positioning axis has been inserted into a die positioning hole; FIG. 14B is an enlarged schematic view showing a state where a bolster positioning axis has been inserted into a die positioning hole; Schematic enlarged view showing the set state

FIGS. 15A to 15C are schematic views showing a state in which a punched hole of a die is worn.

FIG. 16 is an enlarged schematic view showing a state where a step is generated between the sheet feeding section and the die surface.

FIG. 17 is an enlarged schematic view showing a state in which a small card printing section of a single sheet cannot exactly match a punching hole due to a step between a single sheet feeding section and a die surface.

FIG. 18 is a plan view showing a state in which the small card printing section of the single sheet is manufactured with a shift;

[Explanation of symbols]

A ... punching die 1 ... die 2 ... punch B ... single sheet feeder B ₁ ... single sheet feeding unit S ... single sheet s ... small card L ... single sheet feeding reference line 16 ... screw rod 18 ... Lifting body

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akira Uchiyama 1725 Toho-cho, Midori-ku, Yokohama-shi, Kanagawa Prefecture Within Eastern Giken Co., Ltd. (72) Inventor Masahiko Kasai 1725 Toho-cho, Midori-ku, Yokohama, Kanagawa Prefecture Eastern Giken (56) References JP-A-5-177590 (JP, A) JP-A 54-63588 (JP, U) JP-A 4-73497 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B26D 7/06

Claims (3)

(57) [Claims] 1. A sheet-feeding die having a die and a punch, and a sheet-feeding device for feeding a sheet into the punching die, wherein the sheet-feeding device is capable of moving up and down. A sheet feeding unit having a sheet feeding unit, wherein a height of a sheet feeding reference line of the sheet feeding unit can be adjusted so as to be flush with a surface of the die. Punching machine. 2. A sheet-fed sheet punching and manufacturing machine according to claim 1, wherein said sheet-feeding section of said sheet-feeding apparatus is provided with elevating means capable of moving up and down. 3. The sheet feeding apparatus according to claim 1, wherein the sheet feeding device includes a screw rod rotatable in a circumferential direction of the shaft and a driving unit for driving the screw rod to rotate, and the screw rod moves up and down with rotation. A sheet-fed sheet making machine, characterized in that a body is provided and the elevating body is appropriately connected to a sheet-fed sheet feeding section.