JPH03121757A - Slug removing and chamfering device for strip end - Google Patents

Abstract

PURPOSE:To automate slug removal and chamfering of the two ends of a small strip obtained by cutting a long strip material by furnishing a working center to perform slug removal and chamfering of strip installed in the middle part of a conveyor, and providing strip stoppers capable of coming in and out which are located at the inlet to and outlet from the working center. CONSTITUTION:A strip 1 transported is stopped by a stopper 34 when the foremost has reached the farther end of a working area, and the leading end part (both front and rear side) undergoes working. Then the strip 1 is fed in the same direction, and a roller conveyor 6 is reversed where collision is made to another stopper 36 provided at a distance consisting of the max. length of strip 1 plus a certain margin. It is stopped by a stopper 35 immediately before the tail of the strip 1 goes out of the working are, and the strip end at the tail undergoes working both the front and rear sides.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an apparatus for automatically removing slag and chamfering along the cut edges of a strip whose ends have been cut into a predetermined shape. It is.

[Conventional technology]

Conventionally, slugs and chamfers were manually removed along the edges of strips processed into a predetermined shape using electric tools.

[Problem to be solved by the invention]

(7) In order to automate the slugging and chamfering of both ends of strips, the following problems are solved.

(a) The shape of the end of the strip includes not only a surface perpendicular to the longitudinal direction of the strip, but also an oblique or circular arc portion.

(1) Although the thickness, width, and length of the strip material are within a certain range,
There are various combinations.

2) Compared to the processing range at the end of the strip, the length of the strip may be several times to several tens of times longer.

(3) Sladder cutting and chamfering must be performed on the back and front sides of the strip.

(To) When performing back processing, it is necessary to take measures to prevent sagging and chattering of the strip material.

(b) It is preferable to process both ends and the back and front of the strip using one machine.

An object of the present invention is to provide a strip slug removal and chamfering device that solves the above-mentioned problems.

[Means to solve the problem]

(7) Combining a tool-changeable numerical control machine (vertical machining center) with a self-propelled roller conveyor.

(a) Simultaneous 2-axis machining is possible with a vertical machining center.

(1) The thickness, width, and length of the strip are known and entered into the program of the vertical machining center.

) The travel (X-axis) parallel to the longitudinal direction of the strip of the vertical machining center is approximately equal to the maximum machining range of the end of the strip, and the feed υ of the self-propelled roller conveyor corresponds to the length of the strip. .

(3) The roller of the self-propelled roller converter moves up and down within the processing range of the end of the strip material, so that the tool for backside processing can enter the lower side of the roller surface.

(Force) The strip is attracted and supported by a magnet. It is also clamped on the side, which can cause problems in machining.

(To) The self-propelled roller conveyor is rotated forward and reverse so that the leading end of the fed strip is processed first, and then the trailing end of the fed strip is processed in the same processing area.

[Effect]

(7) When a tool-changeable numerically controlled machine (vertical machining center) is combined with a self-propelled roller conveyor, it is possible to move, stop, position, clamp, and select and replace the necessary tools.
Automation is possible by inputting the tool positioning, feed speed, tool rotation speed, etc. into a program.

(b) By using the simultaneous two-axis control function of a vertical machining center, diagonal machining and partial arc machining are possible.

(1) If the thickness, width, and length of the strip are input into the program as known values, the vertical machining center uses the Z axis for thickness, the Y axis for width, and the X axis for length. This can be achieved by combining the feeding and positioning of each self-propelled roller conveyor.

) By adjusting the X-axis travel of the vertical machining center to the longitudinal machining range of the end surface of the strip, and by adjusting the length of the strip with the feed of the self-propelled roller conveyor, the X-axis travel of the machine can be reduced. It's short.

Furthermore, since the processing range is limited, it becomes easier to dispose of chips.

(3) The rollers in this area can be moved up and down according to the machining range at the end of the strip, and multiple electromagnetic magnets are prepared between the rollers so that the rollers can move up and down within the range that does not interfere with the machining process. A plurality of electromagnetic magnets are raised to attract the strips and prevent them from being lifted.

Flash) -! Clamp the sides of the strip with clamp cylinders at several locations to prevent the strip from shifting or rotating in the horizontal plane.

(To) When the leading edge of the strip reaches the opposite end of the processing area, stop it with a stopper, process the leading edge of the strip (both back and front), then feed the strip in the same direction. From the point where it hits the stopper provided at a distance slightly above the maximum length of the strip, turn the roller controller (a) in the opposite direction, stop the strip with the stopper just before the end of the strip passes over the machining area, and then Process the ends of the strips on both the back and front sides.

〔Example〕

Figures 5 and 6 show examples of processing the ends of small strips.

As shown in FIGS. 6(a) to 6(g), the ends of the small strip material 1 are cut into the shape of the thick line part in the figure using a plasma cutting machine, gas cutting machine, laser cutting machine, etc. from a long strip material. It is cut to hold. Figures 6 (a) to (g) are examples of cutting only the left side of the strip, but as shown in Figure 5, the right side of the small strip 1 is also cut in a symmetrical shape as shown in (a) to (g). It is cut into a single processed product.

As for the severed ends! As shown in Figure 5 (b),
Removal of slag 2, 2' caused by cutting and edge 3.3'
Chamfering is done on the back and front, and in some cases,
Chamfer υ of the ridge line 4 perpendicular to the plane of the paper in FIG. 5(a).

FIG. 1 is a schematic diagram of a device for removing slags and chamfering both ends of a small strip according to the present invention, and FIG. 2 is a collection of sectional views of FIG. 1.

Self-propelled roller conveyors 5, 6, and 7 are connected from the right side to the left side in Fig. It is also possible to move.

The structure of the self-propelled roller conveyor 5.6.7 is such that in the cross section F (see Fig. 2(d)), the small strip 1 rides on the roller 8 and is guided in the lateral direction by the lateral reference roller 9. ing. The row 28 is installed so that the left side is lower than the right side in the figure, or it has a conical shape with the left side of the roller being the small end and the right side being the large end, and the top end of the generatrix of the roller is horizontal. ,
Care is taken to ensure that the small strip material 1 follows the horizontal reference row 29 when being fed.

In cross section G (see FIG. 2(C)), the roller 10 has seven flanges 11, and the flange surface is aligned with the guide surface formed on the horizontal reference rollers 9 (plurality). It has become.

In FIG. 2(C), a converter frame (not shown)
The piston rod 914 of the hydraulic cylinder 13 attached to the base 12 is movable left and right, and the block 15 fixed to the end of the piston rod 14 is also fixed to the guide bar 16 guided by the base 12. ing.

A cam follower 17 is attached to the block 15.

The small strip 1 on the roller 10 is pressed against the flange 11 by a hydraulic cylinder 13 via a cam follower 17.

In cross section H (see Figure 2 (a)), the right side of the figure is the same as cross section G (Figure 2 (C)), but the left side has a section attached to the conveyor frame (not shown). There is a hydraulic cylinder 19 attached to the base 18, and a stopper 21 attached to the end of the piston rod is also attached to the base 18.
The hydraulic cylinder 13 is fixed to two guide bars n guided by a cam follower 17, and hits the left side of the small strip 1 at the rising end of the piston rod. It resists the clamping force.

The cross-section (see FIG. 2C) has the same structure as cross-section G, but includes a hydraulic cylinder 23 (not shown) that moves independently of the movement of hydraulic cylinder 13 in cross-section α.

Cross sections J and K (see Fig. 2(f)) have the same structure, and a plurality of (three in the figure) hydraulic cylinders 5 are attached to one side U fixed to a conveyor frame (not shown). It is being A piston rod 26 of the hydraulic cylinder 5 is guided by a base plate 1, and an electromagnetic magnet 27 is attached to the tip. The attraction surface Z7a of the electromagnetic magnet 27 is arranged to coincide with the upper surface of the conveyor at the stroke end 9 at the upper end of the piston rod of the hydraulic cylinder 5. The plurality of electromagnetic magnets 27 (six in the illustrated example) shown in the J-K cross section can be arbitrarily combined and moved up and down individually or in combination.

In the self-propelled roller conveyor 6, the row 2 with 7 lunges
10, there are five in the illustrated example, and as shown in cross section L (see Fig. 2 (g)), they are rotatably supported with a common frame rotation axis being horizontal, and there are con-iars in the frame path. The tip of a piston rod 930 of a hydraulic cylinder 4 is fixed to a frame (not shown), and a guide block 3 is fixed to a conveyor frame (not shown).
The guide bar 32 guided by 1 also has one end fixed.

The frame path is such that when the piston rod I of the hydraulic cylinder 4 is at the upper stroke end, the flanged roller 1
The uppermost side line of 0 coincides with the top surface of the conia. When the frame path is at its rising end, the rollers 8 and 10 of the self-propelled roller conveyor 6 are in a synchronously rotating mechanism (not shown).

Stoppers 33, 34, 35, and 36 are movable up and down, respectively.
As illustrated in the cross section M (see FIG. 2(e)), the end of the piston rod of the hydraulic cylinder 37 fixed to the conveyor frame (not shown) and the conveyor frame (not shown) ) is fixed to one end of two guide bars 40 guided by a guide lock 39 fixed to At the end of the stroke, the top surface of the conveyor is also pulled downward.

The area between the approximate cross section G and the cross section in Fig. 1 constitutes the processing center,
A vertical machining center (not shown) is installed along the self-propelled roller conveyor 6. The X axis of the machining center is parallel to the feeding direction of the conveyor 6, and is the stroke between the G section and the machined section, and the Y axis is parallel to the rotation axis of the roller 10, and the stroke is the small strip material 1 on the roller 10. The width of the belt is also increased, and the Z axis is perpendicular to the top surface of the conveyor. The tools used are a disc-shaped grindstone 41 for removing the upper slag 2;
Disc-shaped grinding wheel 42 for removing the lower slag 2', upper surface 3
A pale-shaped grindstone 43 for chamfering the lower surface 3', a le-shaped grindstone 44 for chamfering the lower surface 3', and a cylindrical grindstone 45 for chamfering the edge 40 are prepared.

A small strip 1 having both ends cut by a cutting machine (not shown) is sent by a self-propelled roller conveyor 5 from the right to the left in FIG. This hits the stopper at the rising end, and the movement to the left is stopped, and the self-propelled roller conveyor 5 stops moving. Self-propelled roller conveyor (When another small strip material (not shown) is rolled up in the section of the roller conveyor, the sequencer (not shown) that controls the overall movement lowers the stopper e33.35, and the self-propelled roller conveyor 5 . The shaft stops and the stopper raises the saw.

In the G section (Fig. 2 (C)), the hydraulic cylinder 13
As a result, the cam 7 roller 17 presses the small strip 1 against the flange 11 of the roller 10.

In the H cross section (Fig. 2 (a)), the hydraulic cylinder 13
The cam follower 17 presses the small strip 1 against the seven flange 11 of the roller 10, and also presses it against the stopper 21 at the rising end by the hydraulic cylinder 19.

Next, the hydraulic cylinder 5 causes the magnetic nail to reach its rising end, and its attraction surface 27a contacts the lower surface of the small strip material 1 and is energized to attract the small strip material 1. There are a plurality of electromagnetic magnets, and a combination of magnets that rise so as not to interfere with the grinding wheel for lower surface machining, which will be described later, is selected by a program according to the width, length, and end shape of the small strip material 1. Sequencer (
(not shown).

Next, the frame 4 is lowered by the hydraulic cylinder 4, so that the five rollers 10 from the G section to the machining section are lowered.

Next, tools 41 to 4 are used during slag and chamfering processing, which will be described later.
4, the stopper metal 21 lowers to the hydraulic cylinder 18. Also, the cam follower 17 to counter this
also retreat.

Next, the stopper word descends.

In this state, the small strip material 1 is cut with a tool 41 for the upper slug 2, a tool 42 for the lower slug 2', and a chamfer 9 on the upper surface 3. A tool 43 is used to chamfer the lower surface 3', a tool 4 is used to chamfer the ridge line 4, and a tool 45 is used to chamfer the ridge line 4 using a machining center (not shown).

Next, if the pad 21 is lowered, it rises, the five rollers 1o rise as the frame rises, the electromagnetic magnet (Z7) that was rising is demagnetized and falls, and the cam follower 17 continues to retreat.

Next, the stopper mo% goes up, the stopper goes down, the self-propelled roller conveyor 6 starts, the small strip material 1 is sent to the left, and the leftward feeding is stopped by the stone /"36, and the self-propelled roller conveyor 6 is started. The feeding of the roller conveyor 6 stops.

Next, the stopper station 35 is raised. The self-propelled roller conveyor is fed in the opposite direction, and the small strip 1 is sent to the right with the tail end, which was the tail end in the previous feed, coming into contact with the stopper. At the same time as the feeding is stopped, the feeding of the self-propelled roller conveyor 6 is also stopped.

The process required for processing the leading end of the small strip 1 will be repeated in substantially the same manner below, so only a summary will be given.At cross section T, the cam follower 17 presses the small strip 1 against the seven flange 11 of the roller 10.

In section H, the cam follower 17 presses the strip 1 against the flange 11 of the roller 10 and also against the stopper 21.

(Electromagnetic magnet according to the width, length, and end shape of the small strip material 1)
A combination of 27 rising objects is determined, and the determined electromagnetic magnet 27 rises and is excited to attract the lower surface of the small strip material 1 with the attraction surface 27a.

Lowering of five rollers 1o from section G to section T.

When there is tool interference, lowering of the pad 21 and retraction of the cam follower 17 at cross section H. Machining of the trailing end of the small strip 1. Raising of the pad 21 when there is tool interference. Rising of the five rollers 10. After demagnetizing the electromagnetic magnet and retracting the descending cam follower 17, when the stopper 36 descends, the self-propelled roller controller
rotates in the normal direction and sends the small strip material 1 from the right to the left in the figure.

When the trailing end of the small strip 1 passes the stopper %, the stopper 34, 36 rises, the self-propelled roller conveyor 6 stops, and the next small strip (not shown) comes to the stopper. Wait until then, and the process has now completed one cycle.

A7 in the self-propelled roller controller is used to send the small strip material 1 to the next process.

Figure 1 shows the maximum length of the small strip material 1 that can be processed, the maximum end processing range, and the length of the strip material 1.
+36 positional relationship is shown.

FIG. 3 shows a section corresponding to section G to section T in FIG. 1 in an embodiment of the present invention.

Figure Tekomon (-s 46 is Conia frame (not shown)
It is connected to the.

FIG. 4 is viewed from the left arrow direction of FIG. The figure shows a machining center 47 equipped with a numerical control device with a tool change function that picks up the slag 2' on the bottom surface of a small strip material 1, which is supported and attracted by an electromagnetic magnet 27, by a disk type grindstone 42 for removing slag from the bottom surface. This shows how it is removed. In this embodiment, tools 41 to 45 are stored in a magazine 48.

In addition, in the above embodiment, the grindstones 41, 42, 43.4
7 rice cutter, paper disk, etc. can be used instead of 4, and a permanent electromagnetic magnet using a permanent magnet or a vacuum chuck, etc. can also be used instead of 270 (electromagnetic type magnet).

〔Effect of the invention〕

The device for removing slag and chamfering the ends of strips according to the present invention includes:
A processing center installed in the middle of the strip conveying conveyor for slugging and chamfering the strip, a retractable strip stopper installed at the entrance and exit of the processing center, and a strip stopper installed at the processing center that removes slag and chamfers the strip. a material fixing device, the front end of the strip is carried into the processing center and fixed, and the front end is processed;
After processing the front end, the strip is further advanced, and when the rear end of the strip is located at the processing center, the strip is fixed and the rear end is processed, resulting in the following effects. .

(7) Slagging and chamfering of both ends of small strips obtained by cutting strips can be automated.

(a) The shape of both ends of the small strip material can be not only perpendicular to the longitudinal direction, but also diagonal or part of a circular arc.

(1) Small strips can be processed into various combinations of thickness, width, and length, albeit within certain ranges.

) Even if the length of a small strip is several times to several tens of times longer than the machining range at the end, the travel parallel to the longitudinal direction of the small strip on the processing machine is slightly longer than the maximum machining range at the end. It is sufficient to add a margin of . This makes processing machines cheaper.

(3) Slag removal and chamfering can be carried out without reversing the small strip material, eliminating the need for an expensive reversing mechanism. In addition, there is no need to lift the entire long strip and process the back side.
No expensive lifting mechanism is required.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a device for removing slag and chamfering both ends of a strip according to the present invention, FIG.
Figure (b) is the top view of Figure 2 (a), Figure 2 (C) is the top view of Figure 2 (a), and Figure 2 (C) is the top view of Figure 2 (a).
G, I sectional view in the figure, Figure 2 (d) is the F sectional view in Figure 1,
Figure 2 (8) is the M sectional view of Figure 1, and Figure 2 (f) is the 1st
J in the figure is a sectional view, Figure 2 (g) is a sectional view L in Figure 1,
Figure 3 is a perspective view of the processing center part of the roller cone tire, s
Figure g4 is a side view seen from the direction of arrow P in Figure 3, and Figure 5 (
a) is a plan view of the end of the strip, FIG. 5(b) is FIG. 5(a)
6(a) to 6(g) show examples of various shapes of the ends of the strip material. 1...Strip material 2.6.7...Self-propelled roller conia 8.10...Roller 9...Horizontal reference roller n...Electromagnetic magnet a, 35...Entrance of processing center and Stopper at the exit

Claims (1)

[Claims] A processing center installed in the middle of the strip conveyor to remove slag and chamfer the strip, a retractable strip stopper installed at the entrance and exit of the processing center, and a strip stopper installed at the processing center that removes slag and chamfers the strip. a material fixing device, the front end of the strip is carried into the processing center and fixed, and the front end is processed;
A strip end characterized in that the strip is further advanced after the processing of the front end is completed, and when the rear end of the strip is located at a processing center, the strip is fixed and the rear end is processed. slag removal and chamfering equipment.