JPS58160015A - Scrap processing method and device therefor - Google Patents

Abstract

PURPOSE:To make it easy to treat scraps at an after-step by a method wherein both of the longitudinal edges of a strip are notched simultaneously with the trimming of the edges. CONSTITUTION:Both of the longitudinal edges of the strip P are subjected to a side trimming process by upper and lower trimming blades 7 and 15 and at the same time, notches N thrusted against the lower end of the outer periphery of the upper trimming blade 7 and extending in the direction of the width of the strip P are formed on the longitudinal edges of the strip P at required intervals with respect to the progressing direction of the strip. In this case, the scraps S generated as a result of the above processing are transferred to a guide 16 in a notched condition and struck with a hammer 19 so that they are broken at the notches N to make themselves into fine pieces.

Description

[Detailed Description of the Invention] The present invention has the following features: (1) At the same time as trimming both width ends of the IJ tube, a notch is inserted into both ends of the strip so that scrap can be easily processed in the subsequent process. This invention relates to a scrap processing method and its device.

In general, if the strip after rolling is in that state, (11) there will be poor quality parts remaining on both end faces (both ears) of the IJ tube due to cracks or dimensional variations, or there will be defects in the longitudinal direction of the strip. Camber may occur. Therefore, a step of shearing both edges of the rolled material is required in order to obtain the desired product size or quality. However, since the strip is continuously flowing, scraps from the sheared ears are also generated continuously or intermittently, making post-processing difficult, so it is necessary to further shred (cut into smaller pieces). It is.

Conventionally, as a method of shredding scrap, a scrap chopper (b)' is installed extending the entire distance downstream of the rotary side trimmer (6) as shown in FIG. ) and side trimmer (,)
A method was adopted in which a guide member (c) was disposed between the two, and after shearing both ears of the IJ knob (d), a chopper (b) was used to cut the scrap (#) into small pieces.

However, in such a method, the distance between the binaural mk shear and the cutting of the scrap (1) at the casing is long (a certain distance must necessarily be maintained due to the mechanical structure);
The scrap (g) that was twisted during shearing was not guided by the chopper (b)'; it got stuck inside the kite member (c). Also, even if you arrive with chopper (b) 1 without getting caught, if the scrap (1) is twisted 90 degrees and enters vertically, it will not get caught in the chopper's blade and will be unable to be cut. Therefore, when the above phenomenon occurred, the entire line stopped, causing a disruption in production.

Conventionally, as a countermeasure for the above, as shown in Fig. 2, the side trimmer = - (chopper fb is installed coaxially with (L)), that is, the chopper's second plate (b In addition, all of the chopper lower cutters (b2) are arranged in parallel inside the trimmer lower cutter (α2) (ml/, +) to shear the strip (d) ears and scrap (#
) by simultaneously shredding scraps (1).
A method was also developed to eliminate the grip. However, in such a system, since the upper and lower cutters of the side trimmer (α) and the chopper (b) are provided on the same +m, the upper and lower cutters (α1) of the side trimmer (α) ((E
2) If the gap 2 and/or the top gap ν are made appropriate, the gap 2 and/or the top gap V' of the upper and lower cutters (61) (6g) as Chotsuno < - (b) will become inappropriate (5th (see figure), it is not possible to make both parts properly at the same time, and the blade (BS) (6z) is damaged or scrapped (
1) It became impossible to cut. Furthermore, since the ear shearing and scrap shredding are performed at the same time, the cutter flaw (σ) of the chopper lower blade vI (b2) remains on the end face of the sheared strip (d), which may affect the product quality. There was a problem with post-process processing, such as rice tags, etc.

The purpose of the present invention is to cut scrap without causing any trouble;
This was created with the purpose of providing a scrap processing method and device that improves production efficiency and quality of backing products at the same time.
At the same time as the JJ strip is trimmed in the longitudinal direction, notches extending in one direction of the strip 1 are inserted at required intervals in the longitudinal direction of the strip 1y and the ends of the strip 1y.

Below are drawings of embodiments of the present invention? I will explain with reference.

A hollow eccentric shaft (2) is rotatably pivoted to a frame (1) provided on both sides in the width direction of the strip (0).
2), and the main shaft (5) is attached to the companion bearing (3) (4).
), and fix the round trimmer upper cutter (7) fully installed cutter attachment jig (6) to one end of the main shaft (5), and attach a drive device (not shown) to the other end of the main shaft (5). Connect the eccentric 14IllI (2) at the appropriate position of the frame (1).
A gap adjustment device consisting of a bolt (8) that moves the frame (1) in the axial direction and a wedge (9) that completely fixes the moved eccentric shaft (2) is provided with a ring.
) Fit the shaft a3 to the bearing 01) provided in the F part, and fix the cutter attachment jig α4 to one end of the @03 with the round trimmer lower blade @06 and the horn char (2) attached. @Q3 Connect a drive device (not shown) to the pond end.

A guide αl for guiding the scrap (S) is provided on the downstream side of the blade attachment part, and in front of the guide αl, the scrap is rotated by a required drive device and is guided by a nommer 01 attached to the tip of the arm (G). (81'k'fc
, fC, and a hopper for receiving the shredded scraps (S)' are arranged below the device.

The details of the mounting part of the upper and lower tributary cutter (7) and the notch (4) will be explained with reference to Figs. 6 and 7. Notches are provided at required intervals in the circumferential direction of the outer circumference of the cutter mounting jig α4. , The notch groove @ has a notch with a blade-shaped side surface.
Insert the shim and place a 7 inch shim between the notch (2) and the bottom of the notch (A) so that the notch (to) can be adjusted in all radial directions. ) Fit a presser block (c) that can be attached and detached with a bolt (c) between the side wall and the notched groove (a) side wall.

Note that (E) in the figure is a width adjustment device for the frame (1).

During work, use the one-way adjustment device (a) to set the dimension between the left and right trimmers to the required size that matches the board width, and use the gap adjustment device (4) to move the eccentric shaft (2) in the direction of the full line. Trimmer upper and lower blade* (7) (Jf9
(7) Between [11i L, eccentric shaft (2) t rotation?
Adjust the gap between αω of the upper and lower blades of the Chidrimmer (7), loosen the bolt L24, remove the presser block (C), and adjust the height of the horn chia (2) by increasing or decreasing the number of shims (2).

The strip (no both; the shima end is the trimmer upper and lower cutter (7
) At the same time as side trimming is performed by αω, a notch N is pressed against the lower edge of the outer periphery of the trimmer upper cutter (7) by a notch (G) and extends in the width direction of the strip (?).
The strips are inserted into both width ends of the strips at intervals of 1 in the direction of travel (see Figure 8).

Scrap generated by side trimming (SJ is sent to guide α'D with notch N fully inserted, and is struck with hammer 4 of the device handle in front of guide (17), breaks at notch N and becomes thin. Cut off.

According to an actual machine test, the optimal depth of notch is 60mm of the plate thickness.
~95% is good.

FIG. 9 shows the radial position It of the notcher used in the present invention.
This is an example in which it is possible to adjust automatically.

Arranged in frame (1) fC, 1i111 receiver αυO′4
A hollow shaft 03 is fitted into the hollow part of the shaft 03, and a rod with a tapered wedge part on the tip side is fitted into the hollow part of the shaft 03. The notch ml is located between the clamp part of the axis d) and the trimmer lower cutter μ~, and the notch ml is placed on the flange part of the flange.
- Hydraulic cylinder (1) for fixing the notch (6) is provided, and the hydraulic cylinder 0 is provided at the center of the lower cutter (to) of the trimmer.
Attach a clamp (support) to the tip of the rod in 1) to secure it to the trimmer lower cutter α5'.

Screw the gear (G) onto the screw threaded on the rear end side of the rod (C), and screw the gear facing the gear (B) attached to the fluid pressure motor (To) to drive gear 0403. By doing this, the rod (c) can be moved forward and backward.

Attach a rod (to) with a rack @ to the frame (to) arranged behind the rod (4) so that it is coaxial with the rod (c), and mesh the pinion OI with the rack (b). , a detector for detecting the amount of movement of the rod (G) is installed coaxially with the pinion movement, and a spring (A) is provided behind the rod (C) to move the rod (to)
c)).

When adjusting the height of the notch (4), rotate the gear cS403 using the fluid pressure motor.
The rotation of the rod moves the rod holder forward and backward in the axial direction, thereby moving and adjusting the notcher-watrimmer lower blade 51 in the radial direction.

″In the embodiment of the present invention, notch-i
We have explained the case of adjusting the distortion with shims and the case of adjusting with a taper wedge, but it can also be done with a cam disk, etc., it can also be done by providing a notch on the upper cutter side of the trimmer, and the upper and lower trimmer main axes can be offset. Of course, they do not have to be on the same axis, and that various other changes can be made without departing from the gist of the invention.

According to the scrap processing method and its apparatus of the present invention, (1) (1) S) Product quality is improved because there are no knife scratches on the side of the IJ knob.

■) The behavior of the notched strip-shaped scrap becomes straight and flows in one direction, making it easy to guide. Furthermore, even if scrap with a notch gets caught in the guide, it will be broken and shredded at the notch, so the guide will not be blocked and work efficiency will be improved.

etc., various crushed effects can be produced.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the conventional example, where the hole is a front view, fB) is a side view, (C) is a plan view, Figure 3 is an explanatory diagram of the top gap and gap, and Figure 4 5 is an explanatory diagram of the present invention, FIG. 5 is a view taken from the ■-■ direction of FIG. 4, FIG. 6 is an explanatory diagram of a portion of a cutter used in the present invention, and FIG. FIG. 8 is a plan view showing the state of the notch and trimming of the strip, and FIG. 9 is an explanatory view for automatically adjusting the position of the notch used in the present invention. In the figure, (1) is the frame, (2) is the eccentric shaft, (5) is the main shaft, (6) is the blade mount, (7) is the trimmer upper blade, 03
Q4 is the shaft, αΦ is the blade mounting jig, (to) (c) is the trimmer lower blade, and (2) - is the notch. Patent Applicant: Ishikawajima-Harima Heavy Industries Co., Ltd. 1/r ′i′～″ Patent Applicant: Nippon Steel Tube Co., Ltd. Patent Applicant’s Agent Figure 7

Claims (1)

[Claims] 1) While trimming the strip width end portion in the longitudinal direction of the strip, the remaining strip till! A scrap processing method in which notches extending in one direction of the strip 1 are inserted in the m section at required intervals in the longitudinal direction of the strip. 2) A notch is provided coaxially with a trimmer round blade for trimming the end of the strip 1 in the longitudinal direction, so that the notch can be fully inserted into one end of the strip 1 and can be adjusted in the radial direction. scrap processing equipment.