CN202700952U - Lower rotary drum device of punching machine - Google Patents

Abstract

The utility model discloses a lower rotary drum device of a punching machine, which relates to a conical punching machine. The problem that a roller is difficult to replace when the existing lower rotary drum is overhauled is solved. The lower rotary drum device comprises a lower rotary drum and a sliding plate, wherein the sliding plate is installed in a countersunk notch of the lower rotary drum; key grooves are formed on both sides of the notch; the sliding plate is a door frame, a cross beam is arranged on the upper end of the sliding plate, and keys are arranged on both outer sides of the sliding plate; the cross beam is tightly pressed on the notch of the lower rotary drum; the keys are in sliding fit with the key grooves; and both inner sides of the sliding plate are in sliding fit with a lower deflector rod of a lower feed angle adjusting mechanism of the punching machine. The lower rotary drum device is used for the punching machine and has the advantages of simple structure, practicability, convenience and rapidity for hoisting the lower rotary drum and high work efficiency.

Description

The lower drum device of punch

Technical field

The utility model belongs to rolling machinery, specially refers to the conic perforator in the seamless steel tube production.

Background technology

In seamless steel tube production, the roll of punch is contained in the rotary drum, and the lower rotary drum of punch need arrange hold down gag for balance on the shift fork mouth, and shift fork mouth top is sealed, and the shift fork mouth is a chute, is used for being slidingly connected the feed angle guiding mechanism.Existing the angle of entry of the piercing mill guiding mechanism is adjusted rotary drum with driving lever mostly, as shown in Figure 1, the roll of punch is arranged vertically up and down, thereby the feed angle guiding mechanism also is arranged vertically up and down, the upper driving lever 1 of upper feed angle guiding mechanism and the lower driving lever 2 of lower feed angle guiding mechanism are fixed on a plane of frame 8, and be arranged on the same vertical line, when roll is changed in maintenance, need to from frame 8, hang out upper rotary drum 3 and lower rotary drum 4, because the top of the shift fork mouth 5 of lower rotary drum 4 is sealed, when accessing lower rotary drum 4, just in time run into upper driving lever 1, hindered hanging out and hanging in of time rotary drum 4, therefore, during each roll change lifting rotary drum 4, all will remove driving lever 1 on the feed angle guiding mechanism, it is time-consuming again to require great effort.

The utility model content

It is not enough that the purpose of this utility model is to overcome above prior art, and a kind of lower drum device of punch is provided, and solves existing lower rotary drum when maintenance, changes the roll hard problem.

The utility model is achieved through the following technical solutions.

A kind of lower drum device of punch is characterized in that: described lower drum device comprises: lower rotary drum and slide plate; Described slide plate is contained in the logical notch of described lower rotary drum ream, the both sides of described notch arrange keyway, described slide plate is a door type frame, the upper end is provided with crossbeam, two outsides are provided with key, described crossbeam is pressed on the notch of lower rotary drum, and described key and described keyway are slidingly matched, and the lower driving lever of feed angle guiding mechanism is slidingly matched under two inboards of described slide plate and the punch.

The upper plane of described crossbeam is manufactured with two lifting eyes.

The utility model compared with prior art has the following advantages and beneficial effect:

The utility model is owing to have the logical notch of ream at lower rotary drum, slide plate is installed in the notch, during lifting, the driving lever of feed angle guiding mechanism on the punch, can be along the slide plate inner slide, by the logical notch of ream, so need not remove feed angle guiding mechanism driving lever, slide plate can take out from the notch of lower rotary drum easily smoothly.The utility model is used for punch, has simple in structurely, practical, and the lower rotary drum of lifting is convenient, fast, the advantage of high efficiency.

Description of drawings

Fig. 1 is the existing lower structural representation of drum device on punch;

Fig. 2 is the top view (A to) of Fig. 1;

Fig. 3 is the side view of Fig. 1;

Fig. 4 is structural representation of the present utility model;

Fig. 5 is the C-C cutaway view of Fig. 4;

Fig. 6 is the structural representation of rotary drum;

Fig. 7 is the structural representation of slide plate;

Fig. 8 is the side view (B to) of Fig. 7;

Fig. 9 is the top view (D to) of Fig. 7.

The utility model is described further by preferred embodiment below in conjunction with accompanying drawing.

The specific embodiment

Shown in Fig. 1,4,5,6,7,8,9, a kind of lower drum device of punch comprises: lower rotary drum 4 and slide plate 7; Described slide plate 7 is contained in 41 li in the logical notch of described lower rotary drum 4 reams, and the both sides of described notch 41 arrange keyway 411; Described slide plate 7 is door type frames, the upper end is provided with crossbeam 71, two outsides and is provided with key 72, and described crossbeam 71 is pressed on the notch 41 of lower rotary drum, described key 72 is slidingly matched with described keyway 411, and the lower driving lever 2 of feed angle guiding mechanism is slidingly matched under two inboards of described slide plate 7 and the punch.

The upper plane of described crossbeam 71 is manufactured with two lifting eyes 711, the described slide plate 7 of convenient taking-up.

During lifting, take first slide plate 7 away, then hang out lower rotary drum 4; Because it is logical that described notch 41 is reams, and width can not be subject to the impact of driving lever 1 much larger than the width of upper driving lever 1 when therefore lifting.

Claims (2)

1. the lower drum device of a punch, it is characterized in that: described lower drum device comprises: lower rotary drum (4) and slide plate (7); It is inner that described slide plate (7) is contained in the logical notch (41) of described lower rotary drum (4) ream, the both sides of described notch (41) arrange keyway (411), described slide plate (7) is a door type frame, the upper end is provided with crossbeam (71), two outsides are provided with key (72), described crossbeam (71) is pressed on the notch (41) of lower rotary drum, described key (72) is slidingly matched with described keyway (411), and the lower driving lever (2) of feed angle guiding mechanism is slidingly matched under two inboards of described slide plate (7) and the punch.

2. the lower drum device of punch according to claim 1, it is characterized in that: the upper plane of described crossbeam (71) is manufactured with two lifting eyes (711).

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