CN200942537Y - Puncher - Google Patents

Abstract

This utility model offers a key punch, including the gear motor and two gear shafts. Sprocket and gear are equipped respectively at both ends of one gear shaft. For the other gear shaft, the gear is available at one end. The sprocket and gear of the gear shaft are respectively in mesh with the sprocket of gear motor and the gear of the other gear shaft. The adjusting bolts are available for both ends of the two gear shafts. Also, both gear shafts are equipped with a couple of bits, which are staggered and positioned on both gear shafts as subject to the upper and lower key slots hereof accurately. When the bits are worn, they could be replaced with the new ones conveniently, while the gear roller shaft is reusable, so as to save the cost.

Description

A kind of puncher

Technical field

The utility model relates to a kind of mechanical field, relates in particular to a kind of puncher.

Background technology

The scutching hole normally adopts the pointed tooth roller to prick the hole on metal forming, because crown is too close, to cut processing and manufacturing very difficult with conventional, the pointed tooth roller is the roll shaft that the surface is provided with a plurality of pointed projectioies, pointed projection on roll shaft may wear to a certain degree, can only scrap, and cost is too high.

Summary of the invention

The utility model provides a kind of puncher, is to be provided with a plurality of removable gear pieces to form roll surface on the discaling roll axle, has broken conventional manufacture craft, has solved the odontotripsis on the roll shaft and has arrived to a certain degree, and whole discaling roll axle can only be scrapped, the shortcoming that cost is high.

The technical solution of the utility model is achieved in that a kind of puncher, comprise reducing motor, two discaling roll axles, discaling roll axle two ends are established sprocket wheel and gear respectively, another discaling roll axle one end is established gear, sprocket wheel on the gear shaft and gear respectively with reducing motor on sprocket wheel and another discaling roll axle on gear be meshed, the adjusting bolt is established at two discaling roll axle two ends respectively, establishes several gear pieces on two discaling roll axles; Gear piece is aimed at keyway and is contained in alternately on two discaling roll axles with upper and lower two keyways location on two discaling roll axles respectively successively.

The beneficial effects of the utility model are: change whole roller manufacture craft, after gear piece may wear to operating limit, can remove scrapping gear piece at any time, change new gear piece, and the discaling roll mandrel is reusable, cost is low.

Description of drawings

Fig. 1 is a cross-sectional view of the present utility model;

Fig. 2 is a local enlarged diagram of the present utility model.

Part explanation: 1, reducing motor, 2, sprocket wheel, 3, gear, 4, gear, 5, the discaling roll axle, 6, the discaling roll axle, 7, regulate bolt, 8, regulate bolt, 9, gear piece.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described: present embodiment is established reducing motor 1, discaling roll axle 5, discaling roll axle 6, on discaling roll axle 5 and discaling roll axle 6, establish several gear pieces 9 respectively, the keyway location that gear piece 9 is aimed on discaling roll axle 5 and the discaling roll axle 6 is contained on two discaling roll mandrels alternately, form the discaling roll axle, because the asymmetric angle that staggers of two keyways on the mandrel, just the crown that makes a slice wherein when making the assembling of adjacent gear piece is to the roller seating space position at adjacent gear piece, thereby discaling roll face tooth pitch is dwindled, density increases, establish sprocket wheel 2 and gear 3 respectively at the two ends of discaling roll axle 6, end at discaling roll axle 5 is established gear 4, sprocket wheel transferring power on sprocket wheel 2 and the reducing motor 1 is meshed gear 3 and gear 4, establishing the effect of regulating bolt 7 and 8, two adjustings of adjusting bolt bolt respectively at the two ends of discaling roll axle 5 and discaling roll axle 6 mainly is the distance of regulating two discaling roll between centers.

Reducing motor 1 rotating band movable sprocket 2 rotates, sprocket wheel 2 driven gears 3 rotate, gear 3 driven gears 4 rotate, discaling roll axle 5 and discaling roll axle 6 rotate, the metal foil material that needs punching is when discaling roll axle 5 and 6 on discaling roll axle pass through, by the gear piece on discaling roll axle 5 and the discaling roll axle 6 that the metal forming thorn is saturating, form aperture.When the gear piece of discaling roll axle tooth 5 and roll shaft 6 may wear to a certain degree can not use the time, gear piece 9 is changed, load onto new gear piece again, need not change the discaling roll mandrel, changed the technology of washing the processing tooth of method with conventional car, save process time and cost.

Claims (3)

1, a kind of puncher, comprise reducing motor (1), discaling roll axle (5), discaling roll axle (6), discaling roll axle (6) two ends are established sprocket wheel (2), gear (3) respectively, and discaling roll axle (5) one ends are established gear (4), sprocket engagement on sprocket wheel (2) and the reducing motor (1), gear (3) is meshed with gear (4), and discaling roll axle (5) and discaling roll axle (6) two ends are established respectively and regulated bolt (7) and regulate bolt (8), it is characterized in that establishing several gear pieces (9) on discaling roll axle (5) and the discaling roll axle (6).

2, a kind of puncher according to claim 1 is characterized in that described gear piece (9) aligning keyway is contained on discaling roll axle (5) and the discaling roll axle (6) with upper and lower two keyways location on discaling roll axle (5) and the discaling roll axle (6) respectively successively alternately.

3, a kind of puncher according to claim 1 and 2 is characterized in that the tooth on the gear piece (9) is small circular arc.

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