JPS6067018A - Rotary type gap shear - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Cutting and pulling out the poor quality end portions and end portions from the finished wire rod, and forcing the rolling wire through the rotary plate which captures the river with a guide key. a high-speed rolling edge which is guided through the cutter head in such a way that the scrap as well as the rolled wire enters an outlet section which has two subsequent, mutually separated guide grooves; This relates to a rotary cut-off shear for I.

It has a rotatably mounted cutter head and a horizontally rotating cutter, and the rolled wire is brought into the area of the cutter by a lateral movement and is perpendicular to the axis of the wire. The rotary wire rod shear that separates rolled wire rods with diameters of s and srrrm corresponds to the East German Patent No. 1+2γ/Core! can be cut at a speed of Om/B;

Wire rod shear described in East German Patent No. 1, No. 7.27, and East German Patent No. 1 Duff, which developed this prototype, No. 237, West German Published Patent No. 7//, 30.
3'A41, East German Patent No. is6o4Lg, East German Patent No. 1 s 2 g's da, West German Published Patent No. J, 2, ? In the shear described in No. 7 J/RI No. 7, during the cutting process at the cutting point, one piece of the rolled wire rod is pressed downward by the upper cutter, and the other piece of the rolled wire rod is pressed downward by the lower cutter. It acts so that it is lifted up. The separation of the strips and the rolled product in the exit section and the necessary lateral movements, however, take place in a horizontal plane.
The tip of the rolled product following the cutting point may run up onto the tip of the deflection rod, which is TJ11, in the exit section, which can lead to disturbances in the running of the rolling stock.

The present invention aims to avoid disturbances due to cut-off #Jr K in rolling installations and to improve the reliability of operation of cut-off shears of the type described above.

The present invention combines the cutting process between the rotating cutter head and the guiding process in the subsequent upward running part with the necessary door-side component in the cutter head and in the ILi mouth part in one direction ( D. It is based on the task of forming it as if it were lying inside.

According to the invention, this feature is such that, in the cutting plane of the cutter head, the diameter of the cutter head increases starting from the approximately average cutter body surface to the opposite dorsal side of the cutter. This is solved by enlarging and preferably terminating at the upper level of the cutter.

For the purpose of running the straight rolling force in the area of the wire shear, the caliper of the scrap and the caliper of the rolled product are circular in diameter, but are, however, formed differently from each other.

Another feature of the invention is that the scrap caliper and the rolled product caliper are edged on the outside.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings showing embodiments thereof.

The first and second figures show the states of the rolled wire rod, the swirl pipe, the upper cutter head 3, the lower cutter spatula dog, and the outlet portion S before the process of cutting the rolled wire rod. The nozzle of the swivel tube is supported in a sliding block.

The outer diameter of the upper and lower cutter heads 3 is in the running plane of the wire, i.e. in the caliper, before cutting, and has a different or varying diameter during and after cutting. - This ensures that there is always a lower guiding amount between the cutter heads, measured in the cross section of the rolled wire. When cutting the tip of the rolled wire rod l, cut the exit part! A scrap guide groove i\119 and a rolling line guide groove lO are formed by the wall and the horizontal turning rod g.

In FIGS. 3 and 9, a piece of silk of the same construction is shown at the moment of cutting of the rolled wire by the upper cutter I/2 and the lower cutter I/2. The tip portion of the scrap and its position relative to the components of the rolled slag are shown in FIGS. S and 6. The position of the tip of the rolling wire mill entering the outlet section S can be seen from FIG. Fig. g shows the guide trajectory /3 for the turning tube in the sliding block B.

The operation of the wire rod shear described above is as follows.

The rolled wire runs through a pneumatically actuated swivel tube supported by cardan joints, or
The position of the lowest part of the turning pipe in the resting block B is as shown in g-1. The running plane of the wire l corresponds to the cutting plane B, -B shown in FIG. 1. Here, the upper cutter head J has a maximum radius Ro.
/ Also, the lower cutter head is the smallest half & tag.

, respectively. The tip of the rolled wire rod moves linearly through the swirl tube, and the cutter head 3. It moves in the guide amount lower formed by the groove and enters the waste guiding groove of the outlet section S (FIG. 2). By actuation of a pneumatic cylinder which captures the swivel tube, the swivel tube moves in a known manner onto the guide track /3 (fifth
The guide caliber of the upper cutter head 3 moves in the upper cutter head (Fig. protrude within. As the rolled wire rod rotates in the rotating tube, it forms an upper cutter//, a lower cutter/,
2 (cutting plane B in Fig. 3, 2-B
, 2) and the end (head piece) of the scrap that travels away during the cutting process 101e is pressed downward by the upper cutter // that moves first, and is pressed downward by the upper cutter // that moves first, and The tip of the wire is cut by the lower cutter l that is moving from behind.
- lifted by. Therefore, the movement of the waste end into the waste guide channel 10 of the outlet section j pointing downwards as well as the movement of the subsequent rolling leg of the upper part of the turning jflJg into the rolled wire guide channel 10 is prevented. be assisted. By rotating the cutter heads J, g, a further lifting of the tip of the rolled wire takes place due to the maximum diameter Ruj of the lower cutter head in this cross-section of the pure running plane. After the break-off process, the swivel tube reaches its end position above the guide track 13 in the sliding block B. In this position, the rolled wire rod is further connected to one structural component 14o, namely the swirl tube 2, the cutter head 3, 1, as can be seen in Figures S and 6.
1. and run straight past the exit section S. In the cutter head 3° wide area, at this position, the lower guide amount is equal to the minimum diameter RRo of the upper cutter head 3.
j and the maximum diameter RuJ of the lower force tethered dog.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of the cutter head before the cutting process, FIG. 1 is a cutting plan view of the cutter head in the plane of the rolled product before the cutting process, and FIG.
FIG. 4 is a longitudinal cross-sectional view of the cutter head during the cutting process, and FIG. 4 is a cutting plan view within the plane of the rolled product during the cutting process. FIG. Figure 6 is a cutting plan view of the cutter head in the plane of the rolled product after the cutting process; FIG. 3 is a cross-sectional view showing a guide trajectory for the swirl tube. /...rolling line side;-...swivel tube;3. D... Upper and lower cutter head; S... Exit part; 6... Sliding block; 7... Guide opening; Za... Diverter; 9... (
Rolled wire guide groove; //... Rolled wire rod guide groove: //, Hedge... Upper and lower cutters; 13... Guide track; /ri... Guide caliber 0 FIG, 1 Common ÷ FIG, 2 ≠ FIG, 3 Certain FIG, 4 He

Claims (1)

[Claims] / Cutting poor quality starting and end parts from a wire rod finished rolled in a high-capacity wire rolling mill, and
It has one counter-rotating cutter head with a thread-like caliber groove, and is axially aligned with the upper cutter head, and a rotationally symmetrical guide member is disposed on the upper cutter head. In a rotary cutting shear for compressed wire running at high speed, which has a swirl pipe on the entry side and a separate guide groove on the exit side of the cutter head, in the cutting plane of the cutter head. , starting from an approximately average cutter body plane (2), the diameter of the cutter head is enlarged up to the opposite dorsal side of the cutter, preferably at the height of the upper corner of the cutter. A rotary cut-off shear characterized in that the caliber for scraps and the caliber for rolled wire rods are circular, but differently formed from each other. Cut-off shear. 3. The caliber for the scrap and the caliber for the rolled chestnut are
A rotary cut-off shear according to claim 1 or 7, which is provided with an outer edge.