CN2396941Y

CN2396941Y - Paper sheet eyelet machine

Info

Publication number: CN2396941Y
Application number: CN 99240234
Authority: CN
Inventors: 秦旭东
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-09
Filing date: 1999-11-09
Publication date: 2000-09-20
Anticipated expiration: 2009-11-09

Abstract

The utility model relates to a machine used for punching paper in stack, which comprises an operating rod, a machine frame, a knife frame, a punching cutter, a paper scrap box, a leaning plate, and a foot pressing plate. The utility model is characterized in that a driving device which drives the knife frame by the operating lever to make the reciprocating punching motion is a four-bar mechanism which comprises the operating lever, the machine frame, the knife frame and a connecting piece, wherein, the operating lever is connected with a loop of the connecting piece by a lock axle and connected with one loop of the knife frame by another pin shaft. The connecting piece is connected with the machine frame by one loop of the pin shaft. Therefore, the problems of complicated structure, fussy manufacture, large volume and bulkiness, etc. of the existing paper sheet eyelet machine can be solved.

Description

The page puncher

The utility model relates to a kind of machinery that stacked sheet is punched of being used for.

Existing page puncher, as Chinese patent 98217328.8, it contains fuselage, cutlery, backup plate, waste material box, hand lever and a cover can make driving force on the hand lever be delivered to transmission mechanism on the cutlery.Its shortcoming is: its transmission mechanism is a pinion and rack, so the cost of making is higher, and volume more greatly, heavy, effort.

The purpose of this utility model is to overcome the shortcoming that exists in the above-mentioned prior art, and a kind of page puncher is provided, so that characteristics such as that it has is simple in structure, manufacturing is easy, cost is low and operation is light and handy, volume is little, in light weight.

The utility model page puncher contains action bars, frame, knife rest, punching cutter, paper scrap box, backup plate and pressure foot, be characterized in: the transmission mechanism of being done reciprocal punching campaign by action bars drive knife rest is a four-bar mechanism, this mechanism has comprised action bars, frame, knife rest and brace, wherein action bars is connected with the brace kink, is connected with the knife rest kink by another bearing pin again by bearing pin, and brace is connected on the frame with the bearing pin kink.By shaking action bars, knife rest is pumped in frame.

The utility model has the advantages that: replaced after the pinion and rack in the existing page puncher with four-bar mechanism, its reliable in action, laborsaving, and its structure is simpler, easily manufactured, cost is low, volume is little, in light weight.

To and contrast accompanying drawing by embodiment below, the utility model will be further described below.Have in the accompanying drawing:

Fig. 1 is the front view that the utility model page puncher band part is partly cutd open.

Fig. 2 and Fig. 3 are respectively A-A cutaway view and the B-B cutaway views among Fig. 1.

Fig. 4 is the transmission mechanism sketch that is driven the knife rest motion in the utility model page puncher by action bars.

Fig. 5 is the stereogram of the utility model page puncher.

From Fig. 1～Fig. 3, can see the structure of the utility model page puncher, it contains action bars 1, frame 2, knife rest 4, punching cutter 5, paper scrap box 6, backup plate 7 and pressure foot 8, and is used to round bar 9 and the spring 14 that pressure foot is fused with knife rest, the workbench 11 that is used to place stacker to be punched.

The power of swinging up and down on the action bars 1 is to be delivered on the knife rest 4 by four-bar mechanism, this mechanism comprises action bars itself, and frame 2, knife rest 4 and be positioned at two braces 15 of action bars both sides, action bars is rotating kink with bearing pin 3a with brace and is connected, and action bars also is rotating kink with bearing pin 3b with knife rest and is connected, brace is connected on the frame with bearing pin 3c kink, and Fig. 4 is the sketch of this transmission mechanism.

Punching cutter 5 is fastened on the knife rest by holding out against screw 10, can make above-below direction with knife rest and move back and forth.Pressure foot 8 is fixed on the round bar 9 in the knife rest endoporus with screw, can move upward with knife rest; On the round bar kink spring 14, and affixed pin 13, this pin can guarantee knife rest in moving downward process, in case touch stacker then pressure foot stops and by spring stacker compressed on stacker.

Earlier stacker is placed on the workbench 11 during use, and make the one side abut in backup plate 7, to guarantee the correct of punch position, orientation, press down 1 four-bar mechanism motion of action bars then, at this moment knife rest drives pressure foot 8 downwards, it is compressed stacker, meanwhile drive 5 pairs of stacker punchings of punching cutter again.Paper scrap during punching along the hollow lumen of punching cutter upwards, the paper scrap passage 4 by knife rest inside ' change paper scrap box 6 over to collect again.

Transmission mechanism in the utility model page puncher has only increased by two braces 15 and three bearing

3a, 3b, 3c and has saved rack-and-pinion in the existing similar puncher between action bars and knife rest, so simple in structure, easily manufactured, cost is low and weight saving, volume-diminished.

The utility model page puncher also can have scale 12 on backup plate 7, see that from Fig. 5 the location when this scale 12 makes the page punching is convenient, thereby make the Kong Weigeng that is got accurate.

Claims

1, a kind of page puncher, it contains action bars (1), frame (2), knife rest (4), punching cutter (5), paper scrap box (6), backup plate (7) and pressure foot (8), it is characterized in that: the transmission mechanism of being done reciprocal punching campaign by action bars drive knife rest is a four-bar mechanism, this mechanism has comprised action bars (1), frame (2), knife rest (4) and brace (15), wherein action bars is connected with the brace kink, is connected with the knife rest kink by another bearing pin (3c) again by bearing pin (3a), and brace is connected on the frame with bearing pin (3c) kink.